Heat exchanger assembly and air conditioner with same

Abstract

The heat exchanger assembly comprises a front heat exchanger and a rear heat exchanger, the front heat exchanger is located on the front side of the rear heat exchanger, and the upper end of the front heat exchanger is connected with the upper end of the rear heat exchanger. The front heat exchanger comprises a plurality of front heat exchange fins spaced in the length direction of the heat exchanger assembly and front heat exchange pipes arranged on the front heat exchange fins in a penetrating mode, and a first bridge piece structure is arranged between every two adjacent front heat exchange pipes in each row of front heat exchange pipes on the front heat exchange fins. Each first bridge piece structure comprises a plurality of first bridge pieces which are sequentially arranged in the direction from the windward side to the leeward side; the number of the first bridge pieces of at least part of the rear bridge piece structures is smaller than the number of the first bridge pieces of the corresponding front bridge piece structures. According to the heat exchanger assembly, airflow can be prevented from being accumulated on the leeward side, and the phenomenon that the heat exchange effect of a front heat exchanger is not uniform is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, in particular to a heat exchanger component and an air conditioner having the same. Background Art

[0002] In the prior art, when heat is exchanged in a heat exchanger assembly inside an air conditioner, airflow accumulates on the leeward side, resulting in uneven heat exchange effect of the front heat exchanger, which affects the energy consumption of the air conditioner. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a heat exchanger assembly that can prevent airflow from accumulating on the leeward side, thereby avoiding uneven heat exchange in the front heat exchanger.

[0004] The utility model also provides an air conditioner, which includes the above-mentioned heat exchanger assembly.

[0005] According to an embodiment of the present invention, a heat exchanger assembly includes a front heat exchanger and a rear heat exchanger, wherein the front heat exchanger is located at the front side of the rear heat exchanger and the upper end is connected to the upper end of the rear heat exchanger, the front heat exchanger includes a plurality of front heat exchange fins spaced apart in the length direction of the heat exchanger assembly and front heat exchange tubes passing through the plurality of front heat exchange fins, the front heat exchanger has a plurality of rows of front heat exchange tubes arranged in sequence from the windward side to the leeward side, a first bridge plate structure is provided between two adjacent front heat exchange tubes in each row of the front heat exchange tubes on the front heat exchange fins, and each of the first bridge plate structures includes a plurality of front heat exchange fins arranged in sequence from the windward side to the leeward side. A plurality of first bridge pieces are arranged in sequence; the plurality of rows of front heat exchange tubes include a windward row of heat exchange tubes located on the windward side and a leeward row of heat exchange tubes located on the leeward side, the front heat exchange fins include a windward fin portion located on the windward side and a leeward fin portion located on the leeward side, the first bridge piece structure includes a front bridge piece structure arranged on the windward fin portion and a rear bridge piece structure arranged on the leeward fin portion, the windward row of heat exchange tubes are all passed through the windward fin portion, and the leeward row of heat exchange tubes are all passed through the leeward fin portion; the number of the first bridge pieces of at least some of the rear bridge piece structures is less than the number of the first bridge pieces of the corresponding front bridge piece structures.

[0006] According to the heat exchanger assembly of the embodiment of the present invention, a first bridge fin structure is provided between two adjacent front heat exchange tubes in each row of front heat exchange tubes on the front heat exchange fins. The first bridge fin structure includes a front bridge fin structure provided on the windward fin portion and a rear bridge fin structure provided on the leeward fin portion, and the number of first bridge fins of at least some of the rear bridge fin structures is less than the number of first bridge fins of the corresponding front bridge fin structure. That is, the number of first bridge fins of at least some of the rear bridge fin structures is less than the number of first bridge fins of the upstream ones, so that the heat exchange effect of at least some of the rear bridge fin structures is worse than that of the upstream front bridge fin structures, so that at least part of the external airflow on the leeward side of the front heat exchanger can be exchanged with the upstream front bridge fin structure, thereby avoiding airflow accumulation on the leeward side and avoiding uneven heat exchange effect of the front heat exchanger.

[0007] In some embodiments of the present invention, the leeward fin portion includes a first fin portion, a second fin portion, and a third fin portion connected in sequence along the length direction of the front heat exchange fin, and the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the front bridge fin structures.

[0008] In some embodiments of the present invention, the leeward fin portion includes a first fin portion, a second fin portion and a third fin portion connected in sequence along the length direction of the front heat exchange fin, and the windward fin portion includes a fourth fin portion, a fifth fin portion and a sixth fin portion connected in sequence along the length direction of the front heat exchange fin; along the air flow direction, the first fin portion is located downstream of the fourth fin portion, the second fin portion is located downstream of the fifth fin portion, and the third fin portion is located downstream of the sixth fin portion, and the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the front bridge fin structures in the fifth fin portion.

[0009] In some embodiments of the present invention, the number of the first bridge fins of at least one of the rear bridge fin structures in the first fin section is less than the number of the first bridge fins of any one of the front bridge fin structures in the fourth fin section; and / or, the number of the first bridge fins of at least one of the rear bridge fin structures in the third fin section is less than the number of the first bridge fins of any one of the front bridge fin structures in the sixth fin section.

[0010] In some embodiments of the present invention, the leeward fin portion includes a first fin portion, a second fin portion and a third fin portion connected in sequence along the length direction of the front heat exchange fin, the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the rear bridge fin structures in the first fin portion, and / or the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the rear bridge fin structures in the first fin portion.

[0011] In some embodiments of the present invention, the number of the first bridge pieces in the first bridge piece structure is 2-4.

[0012] In some embodiments of the present invention, the rear heat exchanger includes a plurality of rear heat exchange fins spaced apart in the length direction of the rear heat exchanger and a rear heat exchange tube passing through the plurality of rear heat exchange fins, the lower end of the rear heat exchange fin has an overlapping area, and the overlapping area is provided with reinforcing ribs.

[0013] In some embodiments of the present invention, the reinforcing ribs are multiple and spaced apart, and the multiple reinforcing ribs are arranged at intervals along the width direction of the rear heat exchange fins. Along the thickness direction of the rear heat exchange fins, the reinforcing ribs protrude from the rear heat exchange fins.

[0014] In some embodiments of the present invention, along the thickness direction of the rear heat exchange fin, multiple reinforcing ribs protrude toward the same side; or, among the multiple reinforcing ribs, at least two of the reinforcing ribs protrude toward both sides of the thickness direction of the rear heat exchange fin.

[0015] In some embodiments of the present invention, the number of the reinforcing ribs is 3-8.

[0016] In some embodiments of the present invention, the heights of the plurality of reinforcing ribs are the same or different; and / or, along the width direction of the rear heat exchange fin, the distances between any two adjacent reinforcing ribs among the plurality of reinforcing ribs are the same or different; and / or, along the width direction of the rear heat exchange fin, the widths of the plurality of reinforcing ribs are the same or different.

[0017] In some embodiments of the present invention, the rear heat exchange tubes are one row or multiple rows spaced apart along the width direction of the rear heat exchange fins, each row includes multiple rear heat exchange tubes spaced apart along the length direction of the rear heat exchange fins, the reinforcing ribs extend along the first direction, and the angle between the first direction and the arrangement direction of each row of the rear heat exchange tubes is A and satisfies: -5°≤A≤10°.

[0018] In some embodiments of the present invention, the rear heat exchange tubes are multiple rows spaced apart along the width direction of the rear heat exchange fins, and the multiple rows of rear heat exchange tubes include a first row of heat exchange tubes and a second row of heat exchange tubes arranged in sequence from the windward side to the leeward side. Along the length direction of the rear heat exchange fins, the reinforcing ribs are arranged opposite to the second row of heat exchange tubes on the leeward side.

[0019] In some embodiments of the present invention, a bridge piece is provided between the rear heat exchange tube located at the lowest end of the second row of heat exchange tubes on the rear heat exchange fin and the reinforcing rib, and the two ends of the bridge piece along the arrangement direction of the second row of heat exchange tubes are connected to the rear heat exchange fin, and the middle part is separated from the rear heat exchange fin, and the number of the bridge pieces is 2-4.

[0020] In some embodiments of the present invention, along the arrangement direction of the second row of heat exchange tubes, the length of the bridge piece is L1 and satisfies: 0.8mm≤L1≤1.4mm; and / or, along the thickness direction of the rear heat exchange fin, the height of the bridge piece is H1 and satisfies: 0.6mm≤H1≤0.9mm.

[0021] In some embodiments of the present invention, a louver structure is provided between the rear heat exchange tube located at the lowest end of the second row of heat exchange tubes on the rear heat exchange fin and the reinforcing rib, and the number of the louver structures is 2-4.

[0022] In some embodiments of the present invention, along the arrangement direction of the second row of heat exchange tubes, the length of the louver structure is L2 and satisfies: 1.2mm≤L2≤1.8mm; and / or, along the thickness direction of the rear heat exchange fin, the height of the louver structure is H2 and satisfies: 0.6mm≤H2≤0.8mm.

[0023] In some embodiments of the present invention, the width of the rear heat exchange fin is M and satisfies: 25 mm ≤ M ≤ 28 mm.

[0024] In some embodiments of the present invention, the diameter of the rear heat exchange tube is D1, and satisfies: 3.6 mm ≤ D1 ≤ 7.5 mm.

[0025] In some embodiments of the present invention, the number of the rear heat exchange tubes is 10-12.

[0026] In some embodiments of the present invention, the tube distance P1 between two adjacent front heat exchange tubes in each row of the front heat exchange tubes on the front heat exchanger is the same; and / or, the tube distance P3 between two adjacent front heat exchange tubes in each row of the rear heat exchange tubes on the rear heat exchanger is the same; and / or, the tube distance between two adjacent front heat exchange tubes in each row of the front heat exchange tubes on the front heat exchanger and the tube distance between two adjacent front heat exchange tubes in each row of the rear heat exchange tubes on the rear heat exchanger are both the same.

[0027] In some embodiments of the present invention, the distance between the lower end of the overlapping area and the adjacent rear heat exchange tube is greater than the distance between two adjacent rear heat exchange tubes.

[0028] In some embodiments of the present invention, the number of the front heat exchange tubes is 22-24.

[0029] In some embodiments of the present invention, along the up and down direction, the height of the rear heat exchanger is Z1 and satisfies: 95mm≤Z1≤105mm; and / or, the height of the front heat exchanger is Z2 and satisfies: 170mm≤Z2≤180mm.

[0030] In some embodiments of the present invention, shutters are provided at the upper ends of the front heat exchanger and the rear heat exchanger.

[0031] According to an embodiment of the present invention, the air conditioner includes a shell, a wind wheel and the above-mentioned heat exchanger assembly, wherein the wind wheel is arranged in the shell; the heat exchanger assembly is arranged in the shell, the rear heat exchanger is located on the upper rear side of the wind wheel, and the front heat exchanger is located on the upper front side and the front side of the wind wheel.

[0032] According to an embodiment of the present invention, an air conditioner is provided with a first bridge fin structure between two adjacent front heat exchange tubes in each row of front heat exchange tubes on the front heat exchange fins. The first bridge fin structure includes a front bridge fin structure provided on the windward fin portion and a rear bridge fin structure provided on the leeward fin portion. The number of first bridge fins in at least some of the rear bridge fin structures is less than the number of first bridge fins in the corresponding front bridge fin structure. That is, the number of first bridge fins in at least some of the rear bridge fin structures is less than the number of first bridge fins in the upstream portion. This can result in the heat exchange effect of at least some of the rear bridge fin structures being worse than that of the upstream front bridge fin structures. This can allow at least part of the external airflow on the leeward side of the front heat exchanger to exchange heat with the upstream front bridge fin structure, thereby preventing airflow from accumulating on the leeward side and preventing uneven heat exchange effect of the front heat exchanger.

[0033] In some embodiments of the present invention, the dimension of the air conditioner in the up-down direction is H3 and satisfies: 280mm≤H3≤300mm; and / or, the dimension of the air conditioner in the front-back direction is L3 and satisfies: 190mm≤L3≤230mm.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1 is a cross-sectional view of an air conditioner according to embodiment 1 of the present utility model;

[0037] Figure 2 is a cross-sectional view of an air conditioner according to embodiment 2 of the present utility model;

[0038] Figure 3 1 is a schematic diagram of a bridge plate of a heat exchanger assembly according to embodiment 1 of the present utility model;

[0039] Figure 4 is a schematic diagram of a louver structure of a heat exchanger assembly according to a third embodiment of the present utility model;

[0040] Figure 5 This is a front view of the reinforcement rib of the heat exchanger assembly according to the first embodiment of the present utility model;

[0041] Figure 6 is a cross-sectional view of a reinforcing rib of a heat exchanger assembly according to embodiment 1 of the present utility model;

[0042] Figure 7 It is a cross-sectional view of the reinforcing rib of the heat exchanger assembly according to the fourth embodiment of the present utility model.

[0043] Reference numerals:

[0044] 100. Air conditioner;

[0045] 10. Heat exchanger assembly;

[0046] 1. Front heat exchanger; 11. Front heat exchange fin; 111. Windward fin section; 1111. Fourth fin section; 1112. Fifth fin section; 1113. Sixth fin section; 112. Leeward fin section; 1121. First fin section; 1122. Second fin section; 1123. Third fin section; 12. Front heat exchange tube; 121. Windward row of heat exchange tubes; 122. Leeward row of heat exchange tubes; 13. First bridge fin structure; 131. Front bridge fin structure; 132. Rear bridge fin structure;

[0047] 2. Rear heat exchanger; 21. Rear heat exchange fin; 211. Overlap area; 2111. Reinforcement rib; 21111. Flow guide structure; 2112. Bridge fin; 21121. Top fin; 21122. Support member; 2113. Louver structure; 22. Rear heat exchange tube; 221. First row of heat exchange tubes; 222. Second row of heat exchange tubes;

[0048] 20. Wind wheel;

[0049] 30. Shell; 301. Air inlet; 302. Air outlet; 303. Support base. DETAILED DESCRIPTION

[0050] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0053] A heat exchanger assembly 10 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0054] like Figure 1As shown, the heat exchanger assembly 10 according to an embodiment of the present invention includes a front heat exchanger 1 and a rear heat exchanger 2 .

[0055] Specifically, the heat exchanger assembly 10 can be used in an air conditioner 100, which includes a fan 20. For example, the air conditioner 100 is used indoors. The heat exchanger assembly 10 absorbs heat from the indoor air and transfers it to the outside, or transfers heat from the outside to the indoor, through a circulating refrigerant (such as Freon), thereby regulating the indoor temperature. The heat exchanger assembly 10 is a key device for heat transfer in the air conditioner 100. In cooling mode, the heat exchanger assembly 10 evaporates the refrigerant at low pressure, absorbing heat from the indoor air and lowering the indoor temperature. In heating mode, the refrigerant condenses at high temperature and high pressure through the condenser, releasing heat and transferring the heat to the indoor air, raising the indoor temperature.

[0056] like Figure 1 As shown, the front heat exchanger 1 is located in front of the rear heat exchanger 2 and its upper end is connected to the upper end of the rear heat exchanger 2. The front heat exchanger 1 includes a plurality of front heat exchange fins 11 spaced apart in the length direction of the heat exchanger assembly 10 and a front heat exchange tube 12 passing through the plurality of front heat exchange fins 11. By providing a plurality of spaced apart front heat exchange fins 11, the front heat exchange tube 12 can be fixed at a plurality of positions on the front heat exchanger 1, so that the position of the front heat exchange tube 12 on the front heat exchanger 1 can be more reliable, and the installation of the front heat exchange tube 12 can be more reliable.

[0057] Among them, the length direction of the front heat exchanger 1 is Figure 1 The up-down direction and the front-back direction are both perpendicular. The front heat exchange tube 12 includes a straight tube section and connecting tubes connected to both ends of the straight tube section. The connecting tube is used to connect two adjacent front heat exchange tubes 12 or the inlet and outlet pipes of the heat exchanger assembly 10. The connecting tube can be a U-shaped tube or a half U-shaped tube.

[0058] The heat exchange medium flowing in the front heat exchange tube 12 can transfer heat to the front heat exchange fins 11, thereby increasing the heat exchange area of ​​the front heat exchanger 1. For example, in cooling mode, refrigerant flows in the front heat exchange tube 12, and the cooling capacity of the refrigerant can be dissipated to the front heat exchange fins 11 through the front heat exchange tube 12. External air enters the air conditioner 100, flows to the front heat exchanger 1, and exchanges heat with the refrigerant in the front heat exchange tube 12. The refrigerant in the front heat exchange tube 12 evaporates and absorbs heat. At the same time, the airflow can also exchange heat with the front heat exchange fins 11. The airflow gradually cools and flows out from the air outlet 302 driven by the wind wheel 20.

[0059] like Figure 1 and Figure 2As shown, the front heat exchanger 1 has multiple rows of front heat exchange tubes 12 arranged in sequence from the windward side to the leeward side, and a first bridge structure 13 is provided between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchange fins 11. Each first bridge-piece structure 13 includes a plurality of first bridge pieces arranged in sequence from the windward side to the leeward side, the two ends of the first bridge piece in the length direction are connected to the front heat exchange fins 11, and the middle part is spaced apart from the front heat exchange fins 11. The first bridge piece includes a top piece structure and a corresponding support structure. The position perpendicular to the front heat exchange fins 11 between the top piece structure and the front heat exchange fins 11 is hollowed out, and the position where the first bridge piece is set on the front heat exchange fins 11 is hollowed out. By setting the first bridge piece, the airflow can be disturbed when flowing through the front heat exchange fins 11, and the flow direction of the airflow can be changed, so that the airflow can fully exchange heat with the front heat exchange tubes 12, further improving the heat exchange effect of the front heat exchange fins 11, and the more first bridge pieces there are, the better the heat exchange effect of the front heat exchange fins 11.

[0060] The multiple rows of front heat exchange tubes 12 include a windward row of heat exchange tubes 121 located on the windward side and a leeward row of heat exchange tubes 122 located on the leeward side. The front heat exchange fins 11 include a windward fin portion 111 located on the windward side and a leeward fin portion 112 located on the leeward side. The first bridge-fin structure includes a front bridge-fin structure 131 arranged on the windward fin portion 111 and a rear bridge-fin structure 132 arranged on the leeward fin portion 112. The windward row of heat exchange tubes 121 are all arranged in the windward fin portion 111, and the leeward row of heat exchange tubes 122 are all arranged in the leeward fin portion 112. The number of first bridge fins of at least some of the rear bridge-fin structures 132 is less than the number of first bridge fins of the corresponding front bridge-fin structure 131. That is, the number of first bridge fins of at least part of the rear bridge fin structure 132 is less than the number of first bridge fins of the upstream one, so that the heat exchange effect of at least part of the rear bridge fin structure 132 is worse than that of the upstream front bridge fin structure 131, and at least part of the external airflow on the leeward side of the front heat exchanger 1 can be heat-exchanged with the upstream front bridge fin structure 131, avoiding the accumulation of airflow on the leeward side and avoiding uneven heat exchange effect of the front heat exchanger 1.

[0061] According to the heat exchanger assembly 10 of the embodiment of the present invention, a first bridge fin structure 13 is provided between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchange fins 11. The first bridge fin structure 13 includes a front bridge fin structure 131 provided on the windward fin portion 111 and a rear bridge fin structure 132 provided on the leeward fin portion 112. The number of first bridge fins of at least some of the rear bridge fin structures 132 is less than the number of first bridge fins of the corresponding front bridge fin structure 131. That is, the number of first bridge fins of at least some of the rear bridge fin structures 132 is less than the number of first bridge fins of the upstream ones, so that the heat exchange effect of at least some of the rear bridge fin structures 132 is worse than that of the upstream front bridge fin structure 131, so that at least part of the external airflow on the leeward side of the front heat exchanger 1 exchanges heat with the upstream front bridge fin structure 131, thereby avoiding airflow accumulation on the leeward side and avoiding uneven heat exchange effect of the front heat exchanger 1.

[0062] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the leeward fin section 112 includes a first fin section 1121, a second fin section 1122, and a third fin section 1123, which are sequentially connected along the length of the front heat exchange fin 11. The number of first bridge fins in the rear bridge fin structure 132 of the second fin section 1122 is less than the number of first bridge fins in any of the front bridge fin structures 131. This can make the heat exchange effect of the rear bridge fin structure 132 in the second fin section 1122 less than that of the front bridge fin structure 131. This can ensure that at least part of the external airflow around the second fin section 1122 on the leeward side of the front heat exchanger 1 exchanges heat more with the front bridge fin structure 131, thereby preventing airflow from accumulating on the second fin section 1122 on the leeward side and preventing uneven heat exchange effect of the front heat exchanger 1.

[0063] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the leeward fin portion 112 includes a first fin portion 1121, a second fin portion 1122 and a third fin portion 1123 which are sequentially connected along the length direction of the front heat exchange fin 11, and the windward fin portion 111 includes a fourth fin portion 1111, a fifth fin portion 1112 and a sixth fin portion 1113 which are sequentially connected along the length direction of the front heat exchange fin 11; along the air flow direction, the first fin portion 1121 is located downstream of the fourth fin portion 1111, the second fin portion 1122 is located downstream of the fifth fin portion 1112, and the third fin portion 1123 is located downstream of the sixth fin portion 1113, and the number of first bridge fins of the rear bridge fin structure 132 in the second fin portion 1122 is less than the number of first bridge fins of any one of the front bridge fin structures 131 in the fifth fin portion 1112. The heat exchange effect of the rear bridge-fin structure 132 in the second fin portion 1122 can be made worse than that of any front bridge-fin structure 131 in the fifth fin portion 1112, so that at least part of the external airflow around the second fin portion 1122 on the leeward side of the front heat exchanger 1 can be more heat-exchanged with the front bridge-fin structure 131 in the fifth fin portion 1112, thereby avoiding the accumulation of airflow on the second fin portion 1122 on the leeward side and avoiding uneven heat exchange effect of the front heat exchanger 1.

[0064] Furthermore, if Figure 1 and Figure 2 As shown, the number of first bridge fins of at least one rear bridge fin structure 132 in the first fin portion 1121 is less than the number of first bridge fins of any front bridge fin structure 131 in the fourth fin portion 1111; the heat exchange effect of the rear bridge fin structure 132 in the first fin portion 1121 can be made worse than that of any front bridge fin structure 131 in the fourth fin portion 1111, so that at least part of the external airflow around the first fin portion 1121 on the leeward side of the front heat exchanger 1 can be more heat-exchanged with the front bridge fin structure 131 in the fourth fin portion 1111, thereby avoiding the airflow accumulation on the first fin portion 1121 on the leeward side, and avoiding uneven heat exchange effect of the front heat exchanger 1.

[0065] Furthermore, if Figure 1 and Figure 2 As shown, the number of first bridge fins in at least one rear bridge fin structure 132 in the third fin section 1123 is less than the number of first bridge fins in any one front bridge fin structure 131 in the sixth fin section 1113. This can make the heat exchange effect of the rear bridge fin structure 132 in the third fin section 1123 less than that of any one front bridge fin structure 131 in the sixth fin section 1113. This can ensure that at least a portion of the external airflow around the third fin section 1123 on the leeward side of the front heat exchanger 1 is more likely to exchange heat with the front bridge fin structure 131 in the sixth fin section 1113, thereby preventing airflow from accumulating on the third fin section 1123 on the leeward side and thus preventing uneven heat exchange in the front heat exchanger 1.

[0066] Therefore, the heat exchange effect of the leeward fin portion 112 located downstream is worse than that of the windward fin portion 111 located upstream, which allows the airflow to exchange more heat with the upstream windward fin portion 111 and the windward row of heat exchange tubes 121. At the same time, the heat exchange medium in the front heat exchange tube 12 can flow from the windward side to the leeward side, ensuring that the heat exchange effect of the front heat exchanger 1 is more uniform.

[0067] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the leeward fin section 112 includes a first fin section 1121, a second fin section 1122, and a third fin section 1123 sequentially connected along the length direction of the front heat exchange fin 11. The number of first bridge fins in the rear bridge fin structure 132 of the second fin section 1122 is less than the number of first bridge fins in any of the rear bridge fin structures 132 in the first fin section 1121. This can make the heat exchange effect of the rear bridge fin structure 132 in the second fin section 1122 less than that of any of the rear bridge fin structures 132 in the first fin section 1121. This can ensure that at least part of the external airflow around the second fin section 1122 on the leeward side of the front heat exchanger 1 is more likely to exchange heat with the rear bridge fin structure 132 in the first fin section 1121, thereby preventing airflow from accumulating in the second fin section 1122 located in the middle region of the leeward fin section 112, thereby preventing uneven heat exchange in the front heat exchanger 1.

[0068] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the number of first bridge fins of the rear bridge fin structure 132 in the second fin section 1122 is less than the number of first bridge fins of any one of the rear bridge fin structures 132 in the first fin section 1121. This can make the heat exchange effect of the rear bridge fin structure 132 in the second fin section 1122 less than that of any one of the rear bridge fin structures 132 in the third fin section 1123. This can ensure that at least part of the external airflow around the second fin section 1122 on the leeward side of the front heat exchanger 1 exchanges heat more with the rear bridge fin structure 132 in the third fin section 1123, thereby preventing airflow from accumulating in the second fin section 1122 located in the middle area of ​​the leeward fin section 112, thereby preventing uneven heat exchange effect of the front heat exchanger 1.

[0069] In some embodiments of the present invention, the number of first bridge fins in the first bridge fin structure 13 is 2-4. It is understood that the number of first bridge fins can be 2, 3, or 4. The first bridge fins can be selectively arranged based on heat exchange requirements and the area where the first bridge fins can be installed to meet different usage requirements.

[0070] In some embodiments of the present invention, Figure 1As shown, the rear heat exchanger 2 includes a plurality of rear heat exchange fins 21 spaced apart in the length direction of the rear heat exchanger 2 and a rear heat exchange tube 22 passing through the plurality of rear heat exchange fins 21. By providing a plurality of spaced apart rear heat exchange fins 21, the rear heat exchange tube 22 can be fixed at a plurality of positions on the rear heat exchanger 2, so that the position of the rear heat exchange tube 22 on the rear heat exchanger 2 can be more reliable, and the installation of the rear heat exchange tube 22 can be more reliable.

[0071] Among them, the length direction of the rear heat exchanger 2 is the same as that of the attached Figure 1 The vertical direction and the front-to-back direction are both perpendicular. The rear heat exchange tube 22 includes a straight tube section and connecting tubes connected at both ends of the straight tube section. The connecting tube is used to connect two adjacent rear heat exchange tubes 22 or the inlet and outlet pipes of the heat exchanger assembly 10. The connecting tube can be a U-shaped tube or a half U-shaped tube.

[0072] The heat exchange medium flowing in the rear heat exchange tubes 22 can transfer heat to the rear heat exchange fins 21, thereby increasing the heat exchange area of ​​the rear heat exchanger 2. For example, in cooling mode, refrigerant flows in the rear heat exchange tubes 22, and the cooling capacity of the refrigerant can be dissipated to the rear heat exchange fins 21 through the rear heat exchange tubes 22. External air enters the air conditioner 100, flows toward the rear heat exchanger 2, and exchanges heat with the refrigerant in the rear heat exchange tubes 22. The refrigerant in the rear heat exchange tubes 22 evaporates and absorbs heat. At the same time, the airflow can also exchange heat with the rear heat exchange fins 21. The airflow gradually cools and flows out of the air outlet 302 driven by the wind wheel 20.

[0073] The lower end of the rear heat exchange fin 21 has an overlapping area 211, and the overlapping area 211 is provided with reinforcing ribs 2111, which can enhance the strength of the edge of the rear heat exchange fin 21; at the same time, the condensation water generated during the heat exchange process can drip along the overlapping area 211, which can take into account the frost problem of the air conditioner 100 and make the overlapping area 211 of the rear heat exchange fin 21 easier to defrost.

[0074] Furthermore, if Figure 1 As shown, there are multiple reinforcing ribs 2111 spaced apart, and multiple reinforcing ribs 2111 can improve the strength of the rear heat exchange fin 21 in multiple places. The reinforcing effect of the reinforcing ribs 2111 is better. Multiple reinforcing ribs 2111 are arranged at intervals along the width direction of the rear heat exchange fin 21. Along the thickness direction of the rear heat exchange fin 21, the reinforcing ribs 2111 protrude from the rear heat exchange fin 21, which can increase the cross-sectional area of ​​the rear heat exchange fin 21 and significantly improve the strength and rigidity of the rear heat exchange fin 21.

[0075] Furthermore, if Figure 1 、 Figure 6 and Figure 7As shown, along the thickness direction of the rear heat exchange fin 21, multiple reinforcing ribs 2111 protrude toward the same side, making the processing and manufacturing of the reinforcing ribs 2111 relatively convenient. Alternatively, at least two of the multiple reinforcing ribs 2111 protrude toward both sides of the thickness direction of the rear heat exchange fin 21, respectively. This can reduce the risk of deformation of the rear heat exchange fin 21 and improve the flatness of the rear heat exchange fin 21.

[0076] Furthermore, the number of reinforcing ribs 2111 is 3-8. It is understood that the number of reinforcing ribs 2111 can be 3, 4, 5, 6, 7, or 8. The number of reinforcing ribs 2111 is no less than 3 to ensure the reinforcing effect of the reinforcing ribs 2111, significantly improving the strength and rigidity of the rear heat exchange fins 21. The number of reinforcing ribs 2111 is no more than 8 to avoid overly complex manufacturing of the rear heat exchange fins 21, thereby reducing the manufacturing cost of the rear heat exchange fins 21.

[0077] In some embodiments of the present invention, the heights of the multiple reinforcing ribs 2111 are the same or different. It is understood that the heights of the multiple reinforcing ribs 2111 are the same, and the reinforcing ribs 2111 can be processed uniformly through stamping and other steps. This simplifies the manufacture of the reinforcing ribs 2111 and reduces the manufacturing cost of the rear heat exchange fins 21. The heights of the multiple reinforcing ribs 2111 can be designed based on the shape of the rear heat exchange fins 21, thereby further strengthening the strength of the edges of the rear heat exchange fins 21. Condensation generated during the heat exchange process can drip along the rear heat exchange fins 21, making the rear heat exchange fins 21 easier to defrost. The heights of the multiple reinforcing ribs 2111 can be selected as needed to meet different usage requirements.

[0078] In some embodiments of the present invention, along the width direction of the rear heat exchange fin 21, such as Figure 5 、 Figure 6 and Figure 7As shown, the distance between any two adjacent reinforcing ribs 2111 among the multiple reinforcing ribs 2111 can be the same or different. It is understood that along the width direction of the rear heat exchange fin 21, the distance between any two adjacent reinforcing ribs 2111 among the multiple reinforcing ribs 2111 is the same. The reinforcing ribs 2111 can be processed through a unified stamping process, simplifying the manufacture of the reinforcing ribs 2111 and reducing the manufacturing cost of the rear heat exchange fin 21. Along the width direction of the rear heat exchange fin 21, the distance between any two adjacent reinforcing ribs 2111 among the multiple reinforcing ribs 2111 can be different. The distance between any two adjacent reinforcing ribs 2111 can be designed based on the shape of the rear heat exchange fin 21 to better strengthen the edge strength of the rear heat exchange fin 21. Condensation generated during the heat exchange process can drip along the rear heat exchange fin 21, making the rear heat exchange fin 21 easier to defrost. The distance between any two adjacent reinforcing ribs 2111 can be selected based on manufacturing needs to meet different usage requirements.

[0079] In some embodiments of the present invention, Figure 6 and Figure 7 As shown, along the width direction of the rear heat exchange fin 21, the widths of the multiple reinforcing ribs 2111 are the same or different. It is understood that along the width direction of the rear heat exchange fin 21, the widths of the multiple reinforcing ribs 2111 are the same, and the reinforcing ribs 2111 can be processed uniformly through stamping and other steps. This simplifies the manufacture of the reinforcing ribs 2111, reducing the manufacturing cost of the rear heat exchange fin 21. Along the width direction of the rear heat exchange fin 21, the widths of the multiple reinforcing ribs 2111 vary. The widths of the reinforcing ribs 2111 can be designed based on the shape of the rear heat exchange fin 21 to better strengthen the strength of the edges of the rear heat exchange fin 21. Condensation generated during the heat exchange process can drip along the rear heat exchange fin 21, making it easier to defrost the rear heat exchange fin 21. The width of the reinforcing ribs 2111 can be selected as needed to meet different usage requirements.

[0080] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the rear heat exchange tubes 22 are one row or multiple rows spaced apart along the width direction of the rear heat exchange fins 21. Each row includes multiple rear heat exchange tubes 22 spaced apart along the length direction of the rear heat exchange fins 21. The number of rows of the rear heat exchange tubes 22 can be selected according to parameters such as the power of the air conditioner 100 to meet different usage requirements.

[0081] like Figure 2As shown, the reinforcing ribs 2111 extend along a first direction, and the angle A between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 is satisfied: -5°≤A≤10°. It is understandable that the angle A between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 can be -5°, -4.5°, -4°, -3.5°, -3°, -2.5°, -2°, -1.5°, -1°, -0.5°, 0°, 0.5°, 1°, 1.5°, 2°, 2.5°, 3°, 3.5°, 4°, 4.5°, 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, 26°, 27°, 28°, 29°, 30°, 31°, 32°, 33°, 34°, 35°, 36°, 37°, 38°, 39°, 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, 50°, 51°, 52°, 53°, 54°, 55°, 56°, 57°, 58°, 59°, 60°, 61°, 62°, 63°, 64°, 65°, 66°, .5°, 8°, 8.5°, 9°, 9.5° or 10°, the angle A between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 is not less than -5°, and the angle A between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 is not greater than 10°, so that there can be a certain angle between the first direction and the arrangement direction of each row of rear heat exchange tubes 22, and the angle is not too large, thereby ensuring the strengthening effect of the reinforcing rib 2111.

[0082] In some embodiments of the present invention, the reinforcing ribs 2111 extend along a first direction, and the angle A between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 satisfies the following conditions: -5°≤A≤10°. Multiple reinforcing ribs 2111 are spaced apart along the width direction of the rear heat exchange fins 21. The width direction of the rear heat exchange fins 21 is substantially perpendicular to the arrangement direction of each row of rear heat exchange tubes 22, and the length direction of the rear heat exchange fins 21 is substantially parallel to the arrangement direction of the rear heat exchange tubes 22. In this embodiment, the reinforcing ribs 2111 extend along a first direction, and the angle between the first direction and the arrangement direction of each row of rear heat exchange tubes 22 is A and satisfies: -5°≤A≤10°. Multiple reinforcing ribs 2111 are arranged at intervals along the width direction of the rear heat exchange fins 21, so that the condensed water generated on the rear heat exchange tubes 22 and the rear heat exchange fins 21 can flow along the length direction of the rear heat exchange fins 21 to the overlap area 211, and the condensed water can flow along the gap between two adjacent reinforcing ribs 2111 to the bottom of the rear heat exchanger 2. Figure 5 As shown, the upper end of the reinforcing rib 2111 in the extension direction has a guide structure 21111; from top to bottom, the width and / or height of the guide structure 21111 gradually increases. The guide structure 21111 can guide condensed water.

[0083] In some embodiments of the present invention, Figure 1 and Figure 2As shown, the rear heat exchange tubes 22 are multiple rows spaced apart along the width direction of the rear heat exchange fins 21. The multiple rows of rear heat exchange tubes 22 include a first row of heat exchange tubes 221 and a second row of heat exchange tubes 222 arranged in sequence from the windward side to the leeward side. Along the length direction of the rear heat exchange fins 21, the reinforcing ribs 2111 are arranged opposite to the second row of heat exchange tubes 222 on the leeward side. The reinforcing ribs 2111 can be arranged on the leeward side to enhance the heat exchange effect on the leeward side.

[0084] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, a bridge piece 2112 is provided between the rear heat exchange tube 22 at the lowest end of the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111. The bridge piece 2112 is connected to the rear heat exchange fin 21 at both ends along the arrangement direction of the second row of heat exchange tubes 222, and the middle portion is spaced apart from the rear heat exchange fin 21. The bridge piece 2112 includes a top piece 21121 and a corresponding support piece 21122. The top piece 21121 extends perpendicularly to the rear heat exchange fin 21. The location of the rear heat exchange fins 21 is hollowed out, and the location where the bridge fins 2112 are provided on the rear heat exchange fins 21 is hollowed out. The provision of the bridge fins 2112 disturbs the airflow as it passes between the bottommost heat exchange tube of the second row of heat exchange tubes 222 and the reinforcing ribs 2111, changing the airflow's direction and enabling sufficient heat exchange with the rear heat exchange tubes 22. This further enhances the heat exchange efficiency of the rear heat exchange fins 21. The greater the number of bridge fins 2112, the better the heat exchange efficiency of the rear heat exchange fins 21. Condensation generated during the heat exchange process is prone to dripping. The provision of the bridge fins 2112 can address the problem of frosting in the air conditioner 100, making it easier to defrost the rear heat exchange fins 21.

[0085] The number of bridge plates 2112 is 2-4. It is understood that the number of bridge plates 2112 can be 2, 3, or 4. The bridge plates 2112 can be selectively arranged according to the heat exchange requirements and the area of ​​the area where the bridge plates 2112 can be arranged to meet different usage requirements.

[0086] In some embodiments of the present invention, Figure 1 and Figure 3As shown, along the arrangement direction of the second row of heat exchange tubes 222, the length of the bridge fins 2112 is L1 and satisfies the following relationship: 0.8 mm ≤ L1 ≤ 1.4 mm. It is understood that along the arrangement direction of the second row of heat exchange tubes 222, the length L1 of the bridge fins 2112 can be 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, 1 mm, 1.05 mm, 1.1 mm, 1.15 mm, 1.2 mm, 1.25 mm, 1.3 mm, 1.35 mm, or 1.4 mm. Along the arrangement direction of the second row of heat exchange tubes 222, the length L1 of the bridge piece 2112 is not less than 0.8 mm, which can ensure the size of the bridge piece 2112 and the heat exchange effect of the rear heat exchange fin 21; along the arrangement direction of the second row of heat exchange tubes 222, the length L1 of the bridge piece 2112 is not greater than 1.4 mm, which can avoid the size of the bridge piece 2112 being too large and avoid affecting the strength of the rear heat exchange fin 21.

[0087] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, along the thickness direction of the rear heat exchange fin 21, the height of the bridge fin 2112 is H1 and satisfies: 0.6mm≤H1≤0.9mm. It is understandable that along the thickness direction of the rear heat exchange fin 21, the height H1 of the bridge fin 2112 can be 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm or 0.8mm. Along the thickness direction of the rear heat exchange fin 21, the height H1 of the bridge fin 2112 is not less than 0.6mm, which can ensure the size of the bridge fin 2112 and the heat exchange effect of the rear heat exchange fin 21; along the thickness direction of the rear heat exchange fin 21, the height H1 of the bridge fin 2112 is not greater than 0.9mm, which can avoid the bridge fin 2112 being too large and thus avoiding affecting the strength of the rear heat exchange fin 21.

[0088] In some embodiments of the present invention, Figure 4 As shown, a louver structure 2113 is provided between the rear heat exchange tube 22 at the lowest end of the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111. The opening of the louver structure 2113 faces the windward side of the rear heat exchanger 2, or the opening of the louver structure 2113 faces the leeward side of the rear heat exchanger 2. The louver structure 2113 has a better wind disturbing effect, and can better disturb the airflow when the airflow flows through between the heat exchange tube at the lowest end of the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111, thereby changing the flow direction of the airflow and enabling the airflow to fully exchange heat with the rear heat exchange tube 22 on the rear heat exchanger 2, thereby further improving the heat exchange effect of the rear heat exchanger 2.

[0089] The number of louver structures 2113 is 2-4. It is understood that the number of louver structures 2113 can be 2, 3, or 4. Louver structures 2113 can be selectively installed based on heat exchange requirements and the area of ​​the area where the louver structures 2113 can be installed to meet different usage requirements.

[0090] In some embodiments of the present invention, Figure 4 As shown, along the arrangement direction of the second row of heat exchange tubes 222, the length of the louver structure 2113 is L2 and satisfies the following relationship: 1.2 mm ≤ L2 ≤ 1.8 mm. It is understood that along the arrangement direction of the second row of heat exchange tubes 222, the length L2 of the louver structure 2113 can be 1.2 mm, 1.25 mm, 1.3 mm, 1.35 mm, 1.4 mm, 1.45 mm, 1.5 mm, 1.55 mm, 1.6 mm, 1.65 mm, 1.7 mm, 1.75 mm, or 1.8 mm. Along the arrangement direction of the second row of heat exchange tubes 222, the length L2 of the louver structure 2113 is not less than 1.2 mm, which can ensure the size of the louver structure 2113 and the heat exchange effect of the rear heat exchange fins 21; along the arrangement direction of the second row of heat exchange tubes 222, the length L2 of the louver structure 2113 is not greater than 1.8 mm, which can avoid the size of the louver structure 2113 being too large and avoid affecting the strength of the rear heat exchange fins 21.

[0091] In some embodiments of the present invention, Figure 4 As shown, along the thickness direction of the rear heat exchange fin 21, the height of the louver structure 2113 is H2 and satisfies the following conditions: 0.6mm≤H2≤0.8mm. It is understood that along the thickness direction of the rear heat exchange fin 21, the height H2 of the louver structure 2113 can be 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, or 0.8mm. Along the thickness direction of the rear heat exchange fin 21, the height H2 of the louver structure 2113 is not less than 0.6mm, which ensures the size of the louver structure 2113 and the heat exchange effect of the rear heat exchange fin 21. Along the thickness direction of the rear heat exchange fin 21, the height H2 of the louver structure 2113 is not greater than 0.9mm, which prevents the louver structure 2113 from being too large and thus affecting the strength of the rear heat exchange fin 21.

[0092] In some embodiments of the present invention, Figure 2As shown, the width M of the rear heat exchange fin 21 satisfies the following conditions: 25 mm ≤ M ≤ 28 mm. It is understood that the width M of the rear heat exchange fin 21 can be 25 mm, 25.5 mm, 26 mm, 26.5 mm, 27 mm, 27.5 mm, or 28 mm. The width M of the rear heat exchange fin 21 is no less than 25 mm to ensure the size and heat exchange effect of the rear heat exchange fin 21. The width M of the rear heat exchange fin 21 is no greater than 28 mm to prevent the rear heat exchange fin 21 from being too large and thus affecting other components within the air conditioner 100.

[0093] In some embodiments of the present invention, the diameter of the rear heat exchange tube 22 is D1 and satisfies the following relationship: 3.6 mm ≤ D1 ≤ 7.5 mm. It is understood that the diameter D1 of the rear heat exchange tube 22 may be 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, 4 mm, 4.1 mm, 4.2 mm, 4.3 mm, 4.4 mm, 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm, 4.9 mm, 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, 6 mm, 6.1 mm, 6.2 mm, 6.3 mm, 6.4 mm, 6.5 mm, 6.6 mm, 6.7 mm, 6.8 mm, 6.9 mm, 7 mm, 7.1 mm, 7.2 mm, 7.3 mm, 7.4 mm, or 7.5 mm. The diameter D1 of the rear heat exchange tube 22 is not less than 3.6 mm, which can ensure the flow rate of the refrigerant in the rear heat exchange tube 22 and the heat exchange effect of the rear heat exchanger 2; the diameter D1 of the rear heat exchange tube 22 is not greater than 7.5 mm, which can avoid the size of the rear heat exchange tube 22 being too large and avoid affecting the strength of the rear heat exchange fin 21.

[0094] In some embodiments of the present invention, the number of rear heat exchange tubes 22 is 10-12. It is understood that the number of rear heat exchange tubes 22 may be 10, 11, or 12. The rear heat exchange tubes 22 may be selectively arranged based on heat exchange requirements and the area where the rear heat exchange tubes 22 can be installed to meet different usage requirements.

[0095] In some embodiments of the present invention, Figure 1 As shown, the tube distance P1 between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchanger 1 is the same, so that the layout of the front heat exchange tubes 12 on the front heat exchanger 1 is more uniform, so that the heat exchange effect of the front heat exchanger 1 is better and it is more convenient to assemble.

[0096] In some embodiments of the present invention, Figure 1As shown, the tube distance P3 between two adjacent front heat exchange tubes 12 in each row of rear heat exchange tubes 22 on the rear heat exchanger 2 is the same, so that the layout of the rear heat exchange tubes 22 on the rear heat exchanger 2 is more uniform, so that the heat exchange effect of the rear heat exchanger 2 is better and it is more convenient to assemble.

[0097] In some embodiments of the present invention, Figure 1 As shown, the distance between adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchanger 1 and the distance between adjacent front heat exchange tubes 12 in each row of rear heat exchange tubes 22 on the rear heat exchanger 2 are the same. This results in a more uniform layout of the front heat exchange tubes 12 on the front heat exchanger 1 and the rear heat exchange tubes 22 on the rear heat exchanger 2, resulting in better heat exchange performance for both the front heat exchanger 1 and the rear heat exchanger 2, and more convenient assembly.

[0098] In some embodiments of the present invention, the distance between the lower end of the overlapping region 211 (i.e., the lower end of the rear heat exchange fin 21) and the adjacent rear heat exchange tube 22 is greater than the distance between two adjacent rear heat exchange tubes 22. The adjacent rear heat exchange tube 22 refers to the rear heat exchange tube 22 closest to the lower end of the overlapping region 211. The distance between the lower end of the overlapping region 211 and the adjacent rear heat exchange tube 22 refers to the distance between the lower end of the overlapping region 211 and the central axis of the straight section of the adjacent rear heat exchange tube 22. The distance between two adjacent rear heat exchange tubes 22 can be the distance between the central axes of the straight sections of two connected rear heat exchange tubes 22, or the distance between the central axes of the straight sections of the two closest rear heat exchange tubes 22. The distance between the lower end of the overlapping region 211 and the adjacent rear heat exchange tube 22 is greater than the distance between two adjacent rear heat exchange tubes 22, thereby facilitating the support of the rear heat exchanger 2 on the housing 30 of the air conditioner 100 via the overlapping region 211. In addition, reinforcing ribs 2111 are provided in the overlapping region 211 to reduce deformation of the overlapping region 211 .

[0099] In some embodiments of the present invention, the number of front heat exchange tubes 12 is 22-24. It is understandable that the number of front heat exchange tubes 12 can be 22, 23, or 24. The front heat exchange tubes 12 can be selectively arranged according to the heat exchange requirements and the area where the front heat exchange tubes 12 can be arranged to meet different usage requirements.

[0100] In some embodiments of the present invention, Figure 2 As shown, along the up and down direction (such as Figure 1In the vertical direction (shown), the height Z1 of the rear heat exchanger 2 satisfies the following conditions: 95 mm ≤ Z1 ≤ 105 mm. It is understood that, in the vertical direction, the height Z1 of the rear heat exchanger 2 may be 95 mm, 95.5 mm, 96 mm, 96.5 mm, 97 mm, 97.5 mm, 98 mm, 98.5 mm, 99 mm, 99.5 mm, 100 mm, 100.5 mm, 101 mm, 101.5 mm, 102 mm, 102.5 mm, 103 mm, 103.5 mm, 104 mm, 104.5 mm, or 105 mm. In the up-down direction, the height Z1 of the rear heat exchanger 2 is not less than 95 mm, which can ensure the size of the rear heat exchanger 2 and the heat exchange effect of the rear heat exchanger 2; in the up-down direction, the height Z1 of the rear heat exchanger 2 is not greater than 105 mm, which can avoid the size of the rear heat exchanger 2 being too large and the rear heat exchanger 2 affecting other components in the air conditioner 100.

[0101] In some embodiments of the present invention, Figure 2 As shown, the height Z2 of the front heat exchanger 1 in the vertical direction satisfies the following conditions: 170 mm ≤ Z2 ≤ 180 mm. It is understood that the height Z2 of the front heat exchanger 1 in the vertical direction may be 170 mm, 170.5 mm, 171 mm, 171.5 mm, 172 mm, 172.5 mm, 173 mm, 173.5 mm, 174 mm, 174.5 mm, 175 mm, 175.5 mm, 176 mm, 176.5 mm, 177 mm, 177.5 mm, 178 mm, 178.5 mm, 179 mm, 179.5 mm, or 180 mm. In the up-down direction, the height Z2 of the front heat exchanger 1 is not less than 170 mm, which can ensure the size of the front heat exchanger 1 and the heat exchange effect of the front heat exchanger 1; in the up-down direction, the height Z2 of the front heat exchanger 1 is not greater than 180 mm, which can avoid the size of the front heat exchanger 1 being too large and avoiding the front heat exchanger 1 affecting other components in the air conditioner 100.

[0102] In some embodiments of the present invention, shutters are provided at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2 . Driven by the impeller 20, the air flow outside the air conditioner 100 enters the interior of the shell 30 of the air conditioner 100 from the air inlet 301 located above the heat exchanger assembly 10, and the external air flow can directly flow to the upper ends of the front heat exchanger 1 and the rear heat exchanger 2. By providing shutters at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2, the shutters can better block the air flow from flowing directly to the upper end of the connection area of ​​the front heat exchanger 1 and the rear heat exchanger 2, and can prevent the air flow from bypassing the rear heat exchange pipe 22 or the front heat exchange pipe 12 at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2 and directly flowing out of the air outlet 302 of the air conditioner 100 driven by the impeller 20, and can change the flow direction of the air flow, so that the air flow can fully exchange heat with the rear heat exchange pipe 22 and the front heat exchange pipe 12 on the front heat exchanger 1 and the rear heat exchanger 2, thereby further improving the heat exchange effect of the heat exchanger assembly 10.

[0103] The following describes a heat exchanger assembly 10 according to four specific embodiments of the present invention with reference to the accompanying drawings. It is worth noting that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0104] Example 1

[0105] Specifically, the heat exchanger assembly 10 includes a front heat exchanger 1 and a rear heat exchanger 2 .

[0106] The heat exchanger assembly 10 can be used in an air conditioner 100, which includes a fan 20. For example, the air conditioner 100 is used indoors. The heat exchanger assembly 10 absorbs heat from the indoor air and transfers it to the outside, or transfers heat from the outside to the indoor, through a circulating refrigerant (such as Freon), thereby regulating the indoor temperature. The heat exchanger assembly 10 is a key device for heat transfer in the air conditioner 100. In cooling mode, the heat exchanger assembly 10 evaporates the refrigerant at low pressure, absorbing heat from the indoor air and lowering the indoor temperature. In heating mode, the refrigerant condenses at high temperature and high pressure through the condenser, releasing heat and transferring the heat to the indoor air, raising the indoor temperature.

[0107] The front heat exchanger 1 has multiple rows of front heat exchange tubes 12 arranged in sequence from the windward side to the leeward side, and a first bridge structure 13 is provided between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchange fins 11. Each first bridge-piece structure 13 includes a plurality of first bridge pieces arranged in sequence from the windward side to the leeward side, the two ends of the first bridge piece in the length direction are connected to the front heat exchange fins 11, and the middle part is spaced apart from the front heat exchange fins 11. The first bridge piece includes a top piece structure and a corresponding support structure. The position perpendicular to the front heat exchange fins 11 between the top piece structure and the front heat exchange fins 11 is hollowed out, and the position where the first bridge piece is set on the front heat exchange fins 11 is hollowed out. By setting the first bridge piece, the airflow can be disturbed when flowing through the front heat exchange fins 11, and the flow direction of the airflow can be changed, so that the airflow can fully exchange heat with the front heat exchange tubes 12, further improving the heat exchange effect of the front heat exchange fins 11, and the more first bridge pieces there are, the better the heat exchange effect of the front heat exchange fins 11.

[0108] The multiple rows of front heat exchange tubes 12 include a windward row of heat exchange tubes 121 located on the windward side and a leeward row of heat exchange tubes 122 located on the leeward side. The front heat exchange fins 11 include a windward fin portion 111 located on the windward side and a leeward fin portion 112 located on the leeward side. The first bridge-fin structure includes a front bridge-fin structure 131 arranged on the windward fin portion 111 and a rear bridge-fin structure 132 arranged on the leeward fin portion 112. The windward row of heat exchange tubes 121 are all arranged in the windward fin portion 111, and the leeward row of heat exchange tubes 122 are all arranged in the leeward fin portion 112. The number of first bridge fins of at least some of the rear bridge-fin structures 132 is less than the number of first bridge fins of the corresponding front bridge-fin structure 131. That is, the number of first bridge fins of at least part of the rear bridge fin structure 132 is less than the number of first bridge fins of the upstream one, so that the heat exchange effect of at least part of the rear bridge fin structure 132 is worse than that of the upstream front bridge fin structure 131, and at least part of the external airflow on the leeward side of the front heat exchanger 1 can be heat-exchanged with the upstream front bridge fin structure 131, avoiding the accumulation of airflow on the leeward side and avoiding uneven heat exchange effect of the front heat exchanger 1.

[0109] The leeward fin portion 112 includes a first fin portion 1121, a second fin portion 1122 and a third fin portion 1123 which are sequentially connected along the length direction of the front heat exchange fin 11, and the windward fin portion 111 includes a fourth fin portion 1111, a fifth fin portion 1112 and a sixth fin portion 1113 which are sequentially connected along the length direction of the front heat exchange fin 11; along the air flow direction, the first fin portion 1121 is located downstream of the fourth fin portion 1111, the second fin portion 1122 is located downstream of the fifth fin portion 1112, the third fin portion 1123 is located downstream of the sixth fin portion 1113, and the rear bridge piece in the second fin portion 1122 The number of first bridge fins of structure 132 is less than the number of first bridge fins of any front bridge fin structure 131 or rear bridge fin structure 132 among the first fin portion 1121, the third fin portion 1123, the fourth fin portion 1111, the fifth fin portion 1112 and the sixth fin portion 1113, so that at least part of the external airflow around the second fin portion 1122 on the leeward side of the front heat exchanger 1 can be more heat-exchanged with the front bridge fin structure 131 or the rear bridge fin structure 132 in other surrounding areas, thereby avoiding the accumulation of airflow in the second fin portion 1122 located in the middle area of ​​the leeward fin portion 112, thereby avoiding uneven heat exchange effect of the front heat exchanger 1.

[0110] The rear heat exchanger 2 is located on the rear side of the front heat exchanger 1 and its upper end is connected to the upper end of the front heat exchanger 1. The rear heat exchanger 2 includes a plurality of rear heat exchange fins 21 spaced apart in the length direction of the rear heat exchanger 2 and a rear heat exchange tube 22 passing through the plurality of rear heat exchange fins 21. By providing a plurality of spaced apart rear heat exchange fins 21, the rear heat exchange tube 22 can be fixed at a plurality of positions on the rear heat exchanger 2, so that the position of the rear heat exchange tube 22 on the rear heat exchanger 2 can be more reliable, and the installation of the rear heat exchange tube 22 can be more reliable.

[0111] The heat exchange medium flowing through the rear heat exchange tubes 22 transfers heat to the rear heat exchange fins 21, thereby increasing the heat exchange area of ​​the rear heat exchanger 2. The lower ends of the rear heat exchange fins 21 have overlapping regions 211, which are equipped with reinforcing ribs 2111 to strengthen the edges of the rear heat exchange fins 21. Condensation generated during the heat exchange process can drip along the overlapping regions 211, preventing frost buildup on the air conditioner 100 and making the overlapping regions 211 of the rear heat exchange fins 21 easier to defrost.

[0112] There are five spaced-apart reinforcing ribs 2111, which are arranged at intervals along the width direction of the rear heat exchange fin 21. Along the thickness direction of the rear heat exchange fin 21, the reinforcing ribs 2111 protrude from the rear heat exchange fin 21. Among the multiple reinforcing ribs 2111, there are at least two reinforcing ribs 2111 that protrude toward both sides of the thickness direction of the rear heat exchange fin 21, respectively, which can reduce the risk of deformation of the rear heat exchange fin 21 and increase the flatness of the rear heat exchange fin 21.

[0113] The multiple reinforcing ribs 2111 have the same height, and the reinforcing ribs 2111 can be processed in a unified manner through stamping and other steps. This simplifies the manufacture of the reinforcing ribs 2111, reducing the manufacturing cost of the rear heat exchange fins 21. Along the width direction of the rear heat exchange fins 21, the distance between any two adjacent reinforcing ribs 2111 among the multiple reinforcing ribs 2111 is the same. During the processing of the reinforcing ribs 2111, the reinforcing ribs 2111 can be processed in a unified manner through stamping and other steps. This simplifies the manufacture of the reinforcing ribs 2111, reducing the manufacturing cost of the rear heat exchange fins 21. Along the width direction of the rear heat exchange fins 21, the multiple reinforcing ribs 2111 have the same width, and the reinforcing ribs 2111 can be processed in a unified manner through stamping and other steps. This simplifies the manufacture of the reinforcing ribs 2111, reducing the manufacturing cost of the rear heat exchange fins 21.

[0114] The rear heat exchange tubes 22 are the first row of heat exchange tubes 221 and the second row of heat exchange tubes 222 arranged in sequence from the windward side to the leeward side. Along the length direction of the rear heat exchange fins 21, the reinforcing ribs 2111 are arranged opposite to the second row of heat exchange tubes 222 on the leeward side. The reinforcing ribs 2111 can be arranged on the leeward side to enhance the heat exchange effect on the leeward side.

[0115] A bridge piece 2112 is provided between the heat exchange tube at the bottom end of the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111. The bridge piece 2112 is connected to the rear heat exchange fin 21 at both ends along the arrangement direction of the second row of heat exchange tubes 222, and the middle part is separated from the rear heat exchange fin 21. The bridge piece 2112 includes a top piece 21121 and a corresponding support piece 21122. The top piece 21121 extends perpendicularly to the rear heat exchange fin 21 from the rear heat exchange fin 21. The location where the bridge fins 2112 are located on the rear heat exchange fins 21 is hollowed out. The bridge fins 2112 disturb the airflow as it passes between the bottommost heat exchange tube of the second row of heat exchange tubes 222 and the reinforcing ribs 2111, changing its direction and allowing for sufficient heat exchange with the rear heat exchange tubes 22. This further enhances the heat exchange efficiency of the rear heat exchange fins 21. The greater the number of bridge fins 2112, the better the heat exchange efficiency of the rear heat exchange fins 21. Condensation generated during the heat exchange process easily drips, so the bridge fins 2112 can mitigate frost buildup in the air conditioner 100 and facilitate defrosting of the rear heat exchange fins 21. There are four bridge fins 2112.

[0116] The rear heat exchanger 2 has multiple rows of rear heat exchange tubes 22 arranged in sequence from the windward side to the leeward side. The area between two adjacent rear heat exchange tubes 22 in each row of rear heat exchange tubes 22 on the rear heat exchange fins 21 is a first wind-passing area. The first wind-passing area has a first bridge piece. The first bridge piece is connected to the rear heat exchange fins 21 at both ends along the arrangement direction of each row of rear heat exchange tubes 22, and the middle part is separated from the rear heat exchange fins 21.

[0117] The first bridge piece includes a first top piece 21121 and a corresponding first support member 21122. The area between the first top piece 21121 and the rear heat exchange fins 21, perpendicular to the rear heat exchange fins 21, is hollowed out, and the area on the rear heat exchange fins 21 where the first bridge piece is provided is also hollowed out. The provision of the first bridge piece disturbs the airflow as it passes through the first wind-passing area, changing its direction and enabling sufficient heat exchange with the rear heat exchange tubes 22, further enhancing the heat exchange efficiency of the rear heat exchange fins 21. The greater the number of first bridge pieces, the better the heat exchange efficiency of the rear heat exchange fins 21. Condensation generated during the heat exchange process easily drips away. The provision of the first bridge piece can also address frost formation in the air conditioner 100, making the rear heat exchange fins 21 more convenient for defrosting.

[0118] The front heat exchanger 1 includes a plurality of front heat exchange fins 11 spaced apart in the longitudinal direction of the front heat exchanger 1 and a front heat exchange tube 12 passing through the plurality of front heat exchange fins 11. By providing a plurality of spaced apart front heat exchange fins 11, the front heat exchange tube 12 can be fixed at a plurality of positions on the front heat exchanger 1, so that the position of the front heat exchange tube 12 on the front heat exchanger 1 can be more reliable, and the installation of the front heat exchange tube 12 can be more reliable.

[0119] The distance P1 between adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchanger 1 is the same, resulting in a more uniform layout of the front heat exchange tubes 12 on the front heat exchanger 1, better heat exchange performance, and easier assembly. The distance P3 between adjacent front heat exchange tubes 12 in each row of rear heat exchange tubes 22 on the rear heat exchanger 2 is the same, resulting in a more uniform layout of the rear heat exchange tubes 22 on the rear heat exchanger 2, better heat exchange performance, and easier assembly.

[0120] Shutters are provided at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2. Driven by the impeller 20, airflow outside the air conditioner 100 enters the interior of the housing 30 of the air conditioner 100 from the air inlet 301 located above the heat exchanger assembly 10. The external airflow can flow directly to the upper ends of the front heat exchanger 1 and the rear heat exchanger 2. By providing louvers at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2, the louvers can effectively prevent the airflow from flowing directly to the upper end of the connection area between the front heat exchanger 1 and the rear heat exchanger 2. This can prevent the airflow from bypassing the rear heat exchange tube 22 or the front heat exchange tube 12 at the upper ends of the front heat exchanger 1 and the rear heat exchanger 2 and directly flowing out of the air outlet 302 of the air conditioner 100 driven by the impeller 20. This can change the flow direction of the airflow, allowing the airflow to fully exchange heat with the rear heat exchange tube 22 and the front heat exchange tube 12 on the front heat exchanger 1 and the rear heat exchanger 2, further improving the heat exchange effect of the heat exchanger assembly 10.

[0121] Example 2

[0122] The structure of this embodiment is substantially the same as that of the first embodiment, wherein the same components are designated by the same reference numerals. The only difference is that the tube spacing between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchanger 1 is P1 or P2. The front heat exchange tubes 12 can be arranged according to the heat exchange requirements at different positions of the front heat exchanger 1 to improve the heat exchange efficiency of the front heat exchanger 1.

[0123] Example 3

[0124] The structure of this embodiment is substantially the same as that of the first embodiment, with identical components designated by the same reference numerals. The only difference lies in a louver structure 2113 disposed between the bottommost heat exchange tube in the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111. The louver structure 2113 opens toward the windward side of the rear heat exchanger 2, or the leeward side of the rear heat exchanger 2. The louver structure 2113 provides a superior wind-disturbing effect, effectively disturbing the airflow as it passes between the bottommost heat exchange tube in the second row of heat exchange tubes 222 on the rear heat exchange fin 21 and the reinforcing rib 2111, thereby redirecting the airflow and enabling sufficient heat exchange with the rear heat exchange tube 22 on the rear heat exchanger 2, further enhancing the heat exchange efficiency of the rear heat exchanger 2. The number of louver structures 2113 is three.

[0125] Example 4

[0126] The structure of this embodiment is substantially the same as that of the first embodiment, wherein the same components are designated by the same reference numerals. The only difference is that along the thickness direction of the rear heat exchange fin 21, a plurality of reinforcing ribs 2111 protrude toward the same side, and the processing and manufacturing of the reinforcing ribs 2111 is relatively convenient.

[0127] The air conditioner 100 according to the embodiment of the present invention includes a housing 30 , a wind wheel 20 and the above-mentioned heat exchanger assembly 10 .

[0128] Specifically, the wind wheel 20 is arranged in the shell 30, the heat exchanger assembly 10 is arranged in the shell 30, the rear heat exchanger 2 is located on the upper rear side of the wind wheel 20, and the front heat exchanger 1 is located on the upper front side and the front side of the wind wheel 20. The heat exchanger assembly 10 semi-surrounds the wind wheel 20. The shell 30 is provided with an air inlet 301 and an air outlet 302. Under the driving action of the wind wheel 20, the airflow outside the air conditioner 100 enters the inside of the shell 30 of the air conditioner 100 from the air inlet 301, and the airflow in the shell 30 flows through the heat exchanger assembly 10 and exchanges heat with the heat exchanger assembly 10. The airflow after the heat exchange is completed is blown out through the air outlet 302.

[0129] Furthermore, an air inlet grille is provided at the air inlet 301. On the one hand, the air inlet grille can prevent hands or other foreign objects from entering the interior of the air conditioner 100, protecting the safety of the user and ensuring the normal operation of the air conditioner 100; on the other hand, the air inlet grille can prevent insects, rats, etc. from entering the shell 30 of the air conditioner 100 and causing damage to the air conditioner 100, thereby ensuring the normal operation of the air conditioner 100 and ensuring the beautiful appearance of the air conditioner 100.

[0130] Optionally, the air inlet grille is detachably connected to the shell 30. The air inlet grille can ensure the beautiful appearance of the shell 30. After the air inlet grille is removed, it is convenient to repair and replace components in the air conditioner 100. At the same time, it is convenient to clean the air inlet grille, avoiding dust accumulation on the air inlet grille due to long-term use.

[0131] According to the air conditioner 100 of the embodiment of the present invention, a first bridge-fin structure 13 is provided between two adjacent front heat exchange tubes 12 in each row of front heat exchange tubes 12 on the front heat exchange fins 11. The first bridge-fin structure 13 includes a front bridge-fin structure 131 provided on the windward fin portion 111 and a rear bridge-fin structure 132 provided on the leeward fin portion 112. The number of first bridge-fins in at least some of the rear bridge-fin structures 132 is less than the number of first bridge-fins in the corresponding front bridge-fin structure 131. That is, the number of first bridge-fins in at least some of the rear bridge-fin structures 132 is less than the number of first bridge-fins in the upstream portion. This can make the heat exchange effect of at least some of the rear bridge-fin structures 132 worse than that of the upstream front bridge-fin structure 131. This can allow at least part of the external airflow on the leeward side of the front heat exchanger 1 to exchange heat with the upstream front bridge-fin structure 131, thereby preventing airflow from accumulating on the leeward side and preventing uneven heat exchange effect of the front heat exchanger 1.

[0132] In some embodiments of the present invention, the vertical dimension of the air conditioner 100 is H3 and satisfies the following conditions: 280mm≤H3≤300mm. It is understood that the vertical dimension H3 of the air conditioner 100 can be 280mm, 282mm, 284mm, 286mm, 288mm, 290mm, 292mm, 294mm, 296mm, 298mm, or 300mm. If the vertical dimension H3 of the air conditioner 100 is not less than 280mm, there is sufficient space inside the air conditioner 100 to install the impeller 20 and the heat exchanger assembly 10. If the vertical dimension H3 of the air conditioner 100 is not greater than 300mm, the height of the air conditioner 100 is relatively reasonable, and the space occupied during transportation is small, which can improve the transportation efficiency of the air conditioner 100.

[0133] In some embodiments of the present invention, the dimension L3 of the air conditioner 100 along the front-to-back direction satisfies the following conditions: 190 mm ≤ L3 ≤ 230 mm. It is understood that the dimension L3 of the air conditioner 100 along the front-to-back direction may be 190 mm, 195 mm, 200 mm, 205 mm, 210 mm, 215 mm, 220 mm, 225 mm, or 230 mm. If the dimension L3 of the air conditioner 100 along the front-to-back direction is not less than 190 mm, there is sufficient space inside the air conditioner 100 to install the impeller 20 and the heat exchanger assembly 10. If the dimension L3 of the air conditioner 100 along the front-to-back direction is not greater than 230 mm, the thickness of the air conditioner 100 is relatively reasonable, and the space occupied during transportation is small, which can improve the transportation efficiency of the air conditioner 100.

[0134] In some embodiments of the present invention, Figure 2 As shown, the housing 30 includes a support base 303, and the overlapping region 211 is supported on the support base 303. Reinforcing ribs 2111 are provided at positions corresponding to the overlapping region 211 and the support base 303. For example, the direction of the support force exerted by the support base 303 on the overlapping region 211 passes through the reinforcing ribs 2111, or the support base 303 includes a contact surface that contacts the overlapping region 211, and a direction perpendicular to the contact surface passes through the reinforcing ribs 2111. The reinforcing ribs 2111 are provided at positions corresponding to the overlapping region 211 and the support base 303 to reduce deformation of the overlapping region 211.

[0135] Other structures and operations of the heat exchanger assembly 10 and the air conditioner 100 having the same according to the embodiment of the present invention are well known to those skilled in the art and will not be described in detail here.

[0136] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0137] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heat exchanger assembly, characterized in that: include: After heat exchanger; A front heat exchanger, wherein the front heat exchanger is located in front of the rear heat exchanger and the upper end is connected to the upper end of the rear heat exchanger, the front heat exchanger includes a plurality of front heat exchange fins spaced apart in the length direction of the heat exchanger assembly and front heat exchange tubes passing through the plurality of front heat exchange fins, the front heat exchanger has a plurality of rows of front heat exchange tubes arranged in sequence from the windward side to the leeward side, a first bridge structure is provided between two adjacent front heat exchange tubes in each row of the front heat exchange tubes on the front heat exchange fins, and each of the first bridge structures includes a plurality of first bridge fins arranged in sequence from the windward side to the leeward side. ; The multiple rows of front heat exchange tubes include a windward row of heat exchange tubes located on the windward side and a leeward row of heat exchange tubes located on the leeward side, the front heat exchange fins include a windward fin portion located on the windward side and a leeward fin portion located on the leeward side, the first bridge-piece structure includes a front bridge-piece structure arranged on the windward fin portion and a rear bridge-piece structure arranged on the leeward fin portion, the windward row of heat exchange tubes are all passed through the windward fin portion, and the leeward row of heat exchange tubes are all passed through the leeward fin portion; the number of the first bridge pieces of at least some of the rear bridge-piece structures is less than the number of the first bridge pieces of the corresponding front bridge-piece structures.

2. The heat exchanger assembly according to claim 1, characterized in that The leeward fin portion includes a first fin portion, a second fin portion and a third fin portion connected in sequence along the length direction of the front heat exchange fin, and the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the front bridge fin structures.

3. The heat exchanger assembly according to claim 1, wherein: The leeward fin portion includes a first fin portion, a second fin portion and a third fin portion which are connected in sequence along the length direction of the front heat exchange fin, and the windward fin portion includes a fourth fin portion, a fifth fin portion and a sixth fin portion which are connected in sequence along the length direction of the front heat exchange fin; along the air flow direction, the first fin portion is located downstream of the fourth fin portion, the second fin portion is located downstream of the fifth fin portion, and the third fin portion is located downstream of the sixth fin portion, and the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the front bridge fin structures in the fifth fin portion.

4. The heat exchanger assembly according to claim 3, characterized in that The number of the first bridge fins of at least one of the rear bridge fin structures in the first fin section is less than the number of the first bridge fins of any one of the front bridge fin structures in the fourth fin section; and / or, the number of the first bridge fins of at least one of the rear bridge fin structures in the third fin section is less than the number of the first bridge fins of any one of the front bridge fin structures in the sixth fin section.

5. The heat exchanger assembly according to claim 1, wherein: The leeward fin portion includes a first fin portion, a second fin portion and a third fin portion connected in sequence along the length direction of the front heat exchange fin, the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the rear bridge fin structures in the first fin portion, and / or the number of the first bridge fins of the rear bridge fin structure in the second fin portion is less than the number of the first bridge fins of any one of the rear bridge fin structures in the first fin portion.

6. The heat exchanger assembly according to claim 1, wherein: The number of the first bridge pieces in the first bridge piece structure is 2-4.

7. The heat exchanger assembly according to claim 1, wherein: The rear heat exchanger includes a plurality of rear heat exchange fins spaced apart in the longitudinal direction of the rear heat exchanger and a rear heat exchange tube passing through the plurality of rear heat exchange fins. The lower ends of the rear heat exchange fins have overlapping areas, and the overlapping areas are provided with reinforcing ribs.

8. The heat exchanger assembly according to claim 7, characterized in that The reinforcing ribs are multiple and spaced apart. The multiple reinforcing ribs are spaced apart along the width direction of the rear heat exchange fins. Along the thickness direction of the rear heat exchange fins, the reinforcing ribs protrude from the rear heat exchange fins.

9. The heat exchanger assembly according to claim 8, characterized in that Along the thickness direction of the rear heat exchange fin, the plurality of reinforcing ribs protrude toward the same side; Alternatively, at least two of the plurality of reinforcing ribs protrude toward both sides of the rear heat exchange fin in the thickness direction.

10. The heat exchanger assembly according to claim 8, wherein The number of the reinforcing ribs is 3-8.

11. The heat exchanger assembly according to claim 8, wherein The heights of the plurality of reinforcing ribs are the same or different; and / or, along the width direction of the rear heat exchange fin, the distance between any two adjacent reinforcing ribs among the plurality of reinforcing ribs is the same or different; And / or, along the width direction of the rear heat exchange fin, the widths of the plurality of reinforcing ribs are the same or different.

12. The heat exchanger assembly according to claim 7 or 8, characterized in that: The rear heat exchange tubes are in one row or multiple rows spaced apart along the width direction of the rear heat exchange fins, each row includes multiple rear heat exchange tubes spaced apart along the length direction of the rear heat exchange fins, the reinforcing ribs extend along a first direction, and the angle between the first direction and the arrangement direction of each row of the rear heat exchange tubes is A and satisfies: -5°≤A≤10°.

13. The heat exchanger assembly according to claim 7, wherein: The rear heat exchange tubes are multiple rows spaced apart along the width direction of the rear heat exchange fins. The multiple rows of rear heat exchange tubes include a first row of heat exchange tubes and a second row of heat exchange tubes arranged sequentially from the windward side to the leeward side. Along the length direction of the rear heat exchange fins, the reinforcing ribs are arranged opposite to the second row of heat exchange tubes on the leeward side.

14. The heat exchanger assembly according to claim 13, wherein: A bridge piece is provided between the rear heat exchange tube located at the lowest end of the second row of heat exchange tubes on the rear heat exchange fin and the reinforcing rib. The two ends of the bridge piece along the arrangement direction of the second row of heat exchange tubes are connected to the rear heat exchange fin, and the middle part is separated from the rear heat exchange fin. The number of the bridge pieces is 2-4.

15. The heat exchanger assembly according to claim 14, wherein: Along the arrangement direction of the second row of heat exchange tubes, the length of the bridge piece is L1 and satisfies: 0.8 mm ≤ L1 ≤ 1.4 mm; And / or, along the thickness direction of the rear heat exchange fin, the height of the bridge piece is H1 and satisfies: 0.6 mm ≤ H1 ≤ 0.9 mm.

16. The heat exchanger assembly according to claim 13, wherein: A louver structure is provided between the rear heat exchange tube located at the lowest end of the second row of heat exchange tubes on the rear heat exchange fin and the reinforcing rib, and the number of the louver structures is 2-4.

17. The heat exchanger assembly according to claim 16, wherein: Along the arrangement direction of the second row of heat exchange tubes, the length of the louver structure is L2 and satisfies: 1.2 mm ≤ L2 ≤ 1.8 mm; And / or, along the thickness direction of the rear heat exchange fin, the height of the louver structure is H2 and satisfies: 0.6 mm ≤ H2 ≤ 0.8 mm.

18. The heat exchanger assembly according to claim 7, wherein The width of the rear heat exchange fin is M and satisfies: 25mm≤M≤28mm.

19. The heat exchanger assembly according to claim 7, wherein: The diameter of the rear heat exchange tube is D1 and satisfies: 3.6 mm ≤ D1 ≤ 7.5 mm.

20. The heat exchanger assembly according to claim 7, wherein The number of the rear heat exchange tubes is 10-12.

21. The heat exchanger assembly according to claim 7, wherein The tube distance P1 between two adjacent front heat exchange tubes in each row of the front heat exchanger is the same; and / or, the tube distance P3 between two adjacent front heat exchange tubes in each row of the rear heat exchange tubes on the rear heat exchanger is the same; And / or, the tube distance between two adjacent front heat exchange tubes in each row of the front heat exchange tubes on the front heat exchanger and the tube distance between two adjacent front heat exchange tubes in each row of the rear heat exchange tubes on the rear heat exchanger are the same.

22. The heat exchanger assembly according to claim 7, wherein The distance between the lower end of the overlapping area and the adjacent rear heat exchange tube is greater than the distance between two adjacent rear heat exchange tubes.

23. The heat exchanger assembly according to claim 1, wherein The number of the front heat exchange tubes is 22-24.

24. The heat exchanger assembly according to claim 1, wherein In the up and down direction, The height of the rear heat exchanger is Z1 and satisfies: 95mm≤Z1≤105mm; And / or, the height of the front heat exchanger is Z2 and satisfies: 170 mm ≤ Z2 ≤ 180 mm.

25. The heat exchanger assembly according to claim 1, wherein Shutters are provided at the upper ends of the front heat exchanger and the rear heat exchanger.

26. An air conditioner, characterized in that: include: case; A wind wheel, the wind wheel is arranged in the housing; According to the heat exchanger assembly according to any one of claims 1 to 25, the heat exchanger assembly is arranged in the shell, the rear heat exchanger is located on the rear upper side of the wind wheel, and the front heat exchanger is located on the front upper side and the front side of the wind wheel.

27. The air conditioner according to claim 26, characterized in that The dimension of the air conditioner in the vertical direction is H3 and satisfies: 280mm≤H3≤300mm; And / or, the dimension of the air conditioner in the front-to-back direction is L3 and satisfies: 190 mm ≤ L3 ≤ 230 mm.

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