HEAT EXCHANGER AND AIR CONDITIONING SYSTEM
Patent Information
- Application Number
- MX2023008503
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2018-12-14
- Filing Date
- 2019-07-29
- Publication Date
- 2026-06-12
- Estimated Expiration
- 2039-07-29
AI Technical Summary
Conventional air conditioning systems with separated heat exchangers for two circuits face challenges in improving heat exchange capacity, especially in part load conditions.
The heat exchanger design includes first and second heat exchange tubes forming separate circuits, with alternating arrangements and shared fins, and is bent into shapes like L, U, or C to increase heat exchange area, utilizing multiple manifolds for fluid communication and allowing fins to be shared between circuits.
This design enhances heat exchange capacity, maintains refrigerant flow and oil return, and allows the system to operate efficiently even if one circuit fails, optimizing heat exchange efficiency and space utilization.
Smart Images
Figure MX434909B0 
Figure MX434909B1
Abstract
Description
The embodiments of the present invention relate 5 to a thermo exchanger and air conditioning system. Background of the Invention In a conventional air conditioning system, the heat exchangers for two circuits are separated from each other. Brief Description of the Invention One object of the embodiments of the present invention is to provide a heat exchanger and air conditioning system, thereby improving the heat exchange capacity of the heat exchanger under a partial load condition. The embodiments of the present invention provide a heat exchanger that includes: heat exchange tubes, wherein the heat exchange tubes include first heat exchange tubes configured to form a first circuit, and second heat exchange tubes 20 configured to form a second circuit. According to the embodiments of the present invention, the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction, which extends in a row in a second direction perpendicular to the first direction, and which are arranged alternately with the heat exchange tubes. According to embodiments of the present invention, 5 the thermo exchanger is bent into an L shape, a U shape, or an O shape when viewed in the second direction. According to the modalities of the present instruction, the heat exchange tube includes a first end on one side of the heat exchanger in the first direction, a second end on the other side of the heat exchanger in the first direction, and an intermediate part between the first end and the second end. The first end of the first heat exchange tube is bent towards one side of the heat exchanger in a third direction perpendicular to both the first and second directions, and the intermediate part and the second end of the first heat exchange tube extend in the first direction. The second end of the second heat exchange tube is bent towards the side of the heat exchanger in the third direction perpendicular to both the first and second directions, and the intermediate part and the first end of the second heat exchange tube extend in the first direction. According to embodiments of the present invention, 25 the heat exchanger further includes: two first manifolds that are connected and in fluid communication with the first ends and the second ends of the first heat exchange tubes, respectively; and the second manifolds that are connected and in fluid communication with 5 the first ends and the second ends of the second heat exchange tubes, respectively. According to the modalities of the present interpretation, the heat exchange tube includes a first end and a second end; the heat exchanger further includes: two first manifolds that are connected and in fluid communication with the first ends and second ends of the first heat exchange tubes, respectively;and the second manifolds that are connected and in fluid communication with the first ends and the second ends of the second heat exchange tubes, respectively, and one of the first manifold and the second manifold on one side, in the first direction, of the heat exchanger is closer to the center, in the first direction, of the heat exchanger than the other in the first direction, such that at least a portion of one of the first manifold and the second manifold is located in a region between the other of the first manifold and the second manifold and the first fins in the first direction, to prevent the passage of at least a portion of an air stream through a gap between the other of the first manifold and the second manifold and the first fins. According to embodiments of the present invention, each group of the first heat exchange tube, which is composed of at least one first heat exchange tube, and each group of the second heat exchange tube, which is composed of at least one second heat exchange tube, are arranged alternately in the second direction. According to embodiments of the present invention, the first heat exchange tubes, the second heat exchange tubes 10, and the first fins are aligned, on at least one side in a third direction perpendicular to both the first and second directions, with each other in the second direction. According to embodiments of the present invention, 15 the first heat exchange tube includes: a first part of the heat exchange tube and a part of the second heat exchange tube are arranged in a third direction perpendicular to the first direction and the second direction;and a connecting part that 20 connects and communicates fluidly with the first heat exchange tube part and the second heat exchange tube part with each other, and the first heat exchange tube part and the second heat exchange tube part are in contact with the same first 25 fin located on one side of the first heat exchange tube part and the second heat exchange tube part in the second direction and are in contact with the same first fin located on the other side of the first heat exchange tube part and the 5 second heat exchange tube part in the second direction.; According to modalities of the present interpretation, the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction, and which extends in a row in a second direction perpendicular to the first direction; and second fins, at least a portion of each of which extends in the first direction, and which are arranged in a row in the second direction perpendicular to the first direction, wherein the first heat exchange tube includes: a first part of the heat exchange tube and a part of the second heat exchange tube arranged in a third direction perpendicular to both the first and second directions;and a connecting portion that connects and communicates smoothly with the portion of the first heat exchange tube and the portion of the second heat exchange tube with each other, wherein the first fins and a first group of heat exchange tubes composed of both portions 25 of the first heat exchange tube of the first heat exchange tubes and the second heat exchange tubes are arranged alternately in a row in the second direction perpendicular to the first direction, and wherein the second fins and a second group of heat exchange tubes composed of the portions of the second heat exchange tube of the first heat exchange tubes are arranged alternately in a row in the second direction perpendicular to the first direction. According to embodiments of the present invention, the portion of the first tube for heat exchange, the portion of the second tube for heat exchange, and the portion of the connection of the first tube for heat exchange are formed by bending a single heat exchange tube. According to embodiments of the present invention, the heat exchange tubes further include third heat exchange tubes configured to form a third circuit, and groups of the first heat exchange tube each composed of at least one of the first 0 heat exchange tubes, second cube» for heat exchange sets each composed of at least one of the second heat exchange tubes, and groups of the third heat exchange tube each composed of at least one of the third heat exchange tubes are arranged alternately in the second direction. According to embodiments of the present invention, the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction and is arranged in a row in a second direction perpendicular to the first direction; second fins, at least a portion of each of which extends in the first direction and is arranged in a row in the second direction perpendicular to the first direction; and third fins, at least a portion of each of which extends in the first direction and is arranged in a row in the second direction perpendicular to the first direction, wherein the heat exchange tubes further include third heat exchange tubes configured to form a circuit.wherein each of the first heat exchange tubes and the second heat exchange tubes consists of: a first heat exchange tube portion and a second heat exchange tube portion arranged in a third direction perpendicular to both the first and second directions; and a connecting portion that connects and communicates smoothly with the first heat exchange tube portion and the second heat exchange tube portion, wherein the first heat exchange tube portions of the first heat exchange tubes, the first heat exchange tube portions of the second heat exchange tubes, and the third heat exchange tubes are arranged in a row, and the second heat exchange tube portions of the first heat exchange tubes are arranged in a row.The parts of the second heat exchange tube of the second heat exchange tubes are arranged in a row, and the parts of the second heat exchange tube of the first heat exchange tubes and the parts of the second heat exchange tube of the second heat exchange tubes are located on both sides of the third heat exchange tubes in the third direction, respectively, wherein the first fins and a first group of heat exchange tubes composed of the parts of the second heat exchange tube of the first heat exchange tubes are arranged alternately in a row in the second direction, wherein the second fins and a second group of heat exchange tubes composed of the parts of the first heat exchange tube of the first heat exchange tubes,The parts of the first heat exchange tube of the second heat exchange cubes, and the third heat exchange tubes are arranged alternately in a row in the second direction, and wherein the third fins and a third group of heat exchange tubes composed of the parts of the second heat exchange tube of the second heat exchange tubes are arranged alternately in a row in the second direction. According to embodiments of the present invention, the heat exchanger further includes: first fins, at least a portion of each of which extends in a first direction and is arranged in a row in a second direction perpendicular to the first direction; and second fins, at least a portion of each of which extends in the first direction and is arranged in a row in the second direction perpendicular to the first direction, further including third heat exchange tubes configured to form a third circuit, wherein each of the first heat exchange tube and the second heat exchange tube comprises: a first part of the heat exchange tube and a part of the second heat exchange tube arranged in a third direction perpendicular to both.the first direction and the second direction; and a connecting part that connects and communicates smoothly with the heat exchange portion of the first tube and the heat exchange portion of the second tube, wherein the heat exchange portions of the first heat exchange tubes, the heat exchange portions of the second heat exchange tubes, and the third heat exchange tubes are arranged in a row, and the heat exchange portions of the first heat exchange cubes and the heat exchange portions of the second heat exchange tubes are arranged in a row and are located on one side of the third heat exchange tubes in the third direction.wherein the first fins and a first group of heat exchange tubes composed of the parts of the second tube for heat exchange of the first heat exchange cubes and the parts of the second tube for heat exchange of the second heat exchange tubes are arranged alternately in a row in the second direction, and wherein the second fins and a second group of heat exchange tubes composed of the parts of the first tube for heat exchange of the first heat exchange cubes, the parts of the first tube for heat exchange of the second heat exchange tubes, and the third heat exchange tubes are arranged alternately in a row in the second direction. According to embodiments of the present invention, in a third direction perpendicular to both the first and second directions, a size of the first fin is the same as that of the larger in size of a portion of the first heat exchange tube in contact with the first fin and a size of a portion of the second heat exchange tube in contact with the first fin. According to embodiments of the present invention, the heat exchange tube includes a first end and a second end; the heat exchanger further includes: two first manifolds that are connected and in fluid communication with the first ends and second ends of the first heat exchange tubes, respectively; two second manifolds that are connected and in fluid communication with the first ends and second ends of the second heat exchange tubes, respectively; and two third manifolds that are connected and in fluid communication with the first ends and second ends of the third heat exchange tubes, respectively. The embodiments of the present invention provide an air conditioning system including the aforementioned heat exchanger. With the heat exchanger according to the embodiments of the present invention, for example, the heat exchange capacity of the heat exchanger in the load condition part was improved. Brief Description of the Figures FIG. 1 is a perspective view of a thermos; changer according to a first embodiment of the present invention; FIG. 2 is a schematic top view of the heat exchanger according to the first embodiment of the present invention; FIG. 3 is a schematic top view of a heat exchanger according to a second embodiment of the present invention; FIG. 4 is a partially elongated schematic view of a heat exchanger according to a third embodiment of the present invention; FIG. 5 is a schematic top view of a heat exchanger according to a fourth embodiment of the present invention, in which the flow directions of a refrigerant are indicated by arrows along the heat exchange tubes; FIG. 6 is a schematic perspective view of a heat exchanger according to a fifth embodiment of the present invention; FIG. 7 is a schematic top view of the heat exchanger according to the fifth embodiment of the present invention; FIG. 8 is a schematic top view of a heat exchanger according to a sixth embodiment of the present invention, in which the flow directions of a refrigerant are indicated by arrows along the heat exchange tubes; FIG. 9 is a schematic perspective view of a heat exchanger according to a seventh embodiment of the present invention; FIG. 10 is a schematic top view of the heat exchanger according to the seventh embodiment of the present invention; FIG. 11 is a schematic perspective view of a heat exchanger according to an eighth embodiment of the present invention; FIG. 12 is a schematic top view of the heat exchanger according to the eighth embodiment of the present invention; FIG. 13 is a schematic perspective view of a heat exchanger according to a ninth embodiment of the present invention; and FIG. 14 is a schematic top view of the temperature changer according to the ninth modality of the present invention. Detailed Description of the Invention An air conditioning system according to the embodiments of the present invention includes a heat exchanger. Specifically, the air conditioning system according to the embodiments of the present invention includes a compressor, a heat exchanger as an evaporator, a heat exchanger as a condenser, an expansion valve, and similar components. The air conditioning system may include two or more circuits. Each circuit is constituted by a portion of a heat exchanger configured to form that circuit. A plurality of portions of the heat exchanger, respectively configured to form the circuits, are connected in parallel and are independent of each other. Referring to FIGS. 1 to 14, a heat exchanger 100 according to the embodiments of the present invention includes heat exchange tubes 1. The heat exchange tubes 1 include first heat exchange tubes 1A configured to form a first circuit, and second heat exchange tubes IB configured to form a second circuit. Referring to FIGS. 1 to 3 and 9 to 14, the heat exchanger 100 according to the embodiments of the present invention further includes first fins 2, at least a portion of each of which extends in a first direction DI, which extends in a row in a second direction D2 perpendicular to the first direction DI, and which are arranged alternately with the heat exchange tubes 1. Therefore, for example, if one of the two circuits of a two-circuit air conditioning system is turned off, at least some of the fins for one circuit can be used for the other circuit to improve the efficiency of the heat exchanger. With reference to FIGS. 1 to 3 and 9 to 14, the first heat exchange tubes 1A and the second heat exchange tubes IB are arranged alternately in the second direction D2. In other embodiments of the present invention, the first heat exchange tube assemblies, each composed of at least one (one, two, three, or more) of the first heat exchange tubes 1A, and the second heat exchange tube assemblies, each composed of at least one (one, two, three, or more) of the second heat exchange tubes IB, are arranged alternately in the second direction D2. In other words, a plurality of first heat exchange tube assemblies and a plurality of second heat exchange tube assemblies are arranged alternately. The heat exchange tube 1 may be a flat tube.According to the examples of the present invention, the first heat exchange tubes 1A, the second heat exchange tubes IB, and the first fins 2 are aligned, on at least one side in a third direction D3 20 perpendicular to both the first direction DI and the second direction D2, with each other in the second direction D2. In some examples of the present invention, the first heat exchange tubes 1A include a plurality of groups of the first heat exchange tube, the second heat exchange tubes 25 IB include a plurality of groups of the second heat exchange tube, and the plurality of groups of the first heat exchange tube and the plurality of groups of the second heat exchange tube are arranged alternately in the second 5 direction D2.The plurality of groups of the first heat exchange tube have the same number or different numbers of first heat exchange tubes· 1A. The plurality of groups of the second heat exchange tube have the same number or different numbers of second heat exchange tubes· IB. Referring to FIGS. 1 to 3 and 9 to 14, in some embodiments of the present invention, the first fin 2 has the same size in the third direction D3 perpendicular to both the first direction DI and the second direction D2 as a larger portion of the first heat exchange tube 1A in contact with the first fin 2 and a portion of the second heat exchange tube IB in contact with the first fin 2. Therefore, both the first heat exchange tube 1A and the second heat exchange tube IB are in contact with the first fin 2 in all their sizes (e.g., all their widths) in the third direction D3. According to embodiments of the present invention, referring to FIGS. 3 and 9 to 14, the heat exchanger The 100 is folded into an L-shape (FIGS. 9 and 10), a U-shape (FIGS. 3, 13, and 14), or a C-shape (FIGS. 11 and 12) when viewed in the second direction D2 (i.e., when viewed from a top view). Additionally, the 100 heat exchanger can be folded into any other shape, such as a V-shape. The heat exchange area can be increased by folding the heat exchanger. The folded heat exchanger is obviously superior in heat exchange capacity to a single-row heat exchanger. The number of circuits in the heat exchanger can be greater than or equal to 2. According to embodiments of the present invention, referring to FIGS. 1 to 3, the heat exchange tube 1 includes a first end 11 on one side of the heat exchanger 100 in the first direction Di, a second end 12 on the other side of the heat exchanger 100 in the first direction DI, and an intermediate part 13 between the first end 11 and the second end 12. The first end 11 of the first heat exchange tube 1A is bent towards one side of the heat exchanger 100 in the second third direction D3 perpendicular to both the first direction DI and the second direction D2, and the intermediate part 13 and the second end 12 of the first heat exchange tube 1A extend in the first direction DI.Furthermore, the second end 12 of the second heat exchanger tube IB is bent towards the side of the heat exchanger 100 in the third direction D3, perpendicular to both the first direction Di and the second direction D2, and the middle section 13 and the first end 11 of the second heat exchanger tube IB are extended in the first direction DI. The heat exchanger tube 1 is bent at only one end and not at the other. All heat exchanger tubes 1 can have the same shape and size, thus reducing the number of types of heat exchanger tubes 1 and significantly increasing the efficiency of the heat exchanger manufacturing process. According to embodiments of the present invention, referring to TIGS 1 to 4 and 9 to 14, the heat exchanger 100 further includes: two first manifolds 3A that are connected and in fluid communication with the first ends 11 and the second ends 12 of the first heat exchange tubes 1A, respectively; and the second manifolds 3B that are connected and in fluid communication with the first ends 11 and the second ends 12 of the second heat exchange tubes 1B, respectively. According to embodiments of the present invention, referring to FIGS. 1 to 4 and 9 to 14, the heat exchange tube 1 includes a first end 11 and a second end 12. The heat exchanger 100 further includes: two first manifolds 3A that are connected and in fluid communication with the first ends 11 and the second ends 12 of the first heat exchange tubes 1A, respectively; and the second manifolds 3B which are connected and in fin communication with the first ends 11 and the second ends 12 of the second heat exchange tubes IB, respectively. One of the first manifold 3A and the second manifold 3B on one side, in the first direction DI, of the heat exchanger 100 is closer to the center, in the first direction DI, of the heat exchanger 100 than the other in the first direction DI, such that at least a portion of one of the first manifold 3A and the second manifold 3B is located in a region between the other of the first manifold 3A and the second manifold 3B and the first fins 2 in the first direction DI, to prevent the passage of at least a portion of the air stream A, through a gap between the other of the first manifold 3A and the second manifold 3B and the first fins 2 as shown in FIG. 4. Referring to FIG. 4, a height difference between the centerline of the first multiple 3A and a centerline of the second multiple 3B is H. Referring to FIG. 5, in some embodiments of the present invention, the first heat exchange tube 1A includes: a first heat exchange tube part 1A1 and a second heat exchange tube part 1A2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting part 1A3 that connects and communicates smoothly with the first heat exchange tube part 1A1 and the second heat exchange tube part 1A2 with each other.The portion of the first tube for heat exchange 1A1 and the portion of the second tube for heat exchange 1A2 are in contact with the same first fin 2 located on one side of the portion of the first tube for heat exchange 1A1 and the portion of the second tube for heat exchange 1A2 in the second direction D2, and are in contact with the same first fin 10 2 located on the other side of the portion of the first tube for heat exchange 1A1 and the portion of the second tube for heat exchange 2A2 in the second direction D2. For example, the portion of the first tube for heat exchange 1A1, the portion of the second tube for heat exchange. 1A2, and the connecting part 1A3 of the first heat exchange tube 1A are formed by folding a single heat exchange tube 1. According to the embodiments of the present invention, at least some of the plurality of first fins 2 0 2 are shared by the first heat exchange tubes 1A and the second heat exchange tubes IB. Therefore, if one of the two circuits of a two-circuit air conditioning system is shut down, at least some of the first fins for that circuit can be used by the other circuit to improve the heat exchange efficiency of the heat exchanger. Referring to FIG. 5, in some embodiments of the present invention, the heat exchanger 10C further includes: first fins 2, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction Di; and second fins, at least a portion of each of which extends in the first direction DI, and which are arranged in a row 10 in the second direction D2 perpendicular to the first direction DI. The first heat exchange tube 1A includes: a first heat exchange tube part 1A1 and a second heat exchange tube part 1A2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting part 1A3 that connects and communicates smoothly with the first heat exchange tube part 1A1 and the second heat exchange tube part 1A2 with each other.The first fins 2 and a first group of heat exchange tubes 1, composed of both the first heat exchange tube portions 1A1 of the first heat exchange tubes 1A and the second heat exchange tubes IB, are arranged alternately in a row in the second direction D2 perpendicular to the first direction DI, and the second fins and a second group of heat exchange tubes 1, composed of the second heat exchange tube portions 1A2 of the first heat exchange tubes 1A, are arranged alternately in a row in the second direction D2 perpendicular to the first direction DI. The height of the second fin in the second direction D2 is substantially equal to the distance between two adjacent portions of the second heat exchange tube 1A2 and is greater than the height of the first fin 2 in the second direction D2.In other words, in the present embodiment 10, the first heat exchange tube 1A is longer than the second heat exchange tube IB, thus achieving different heat exchange capacities for different circulation circuits. Furthermore, to achieve these different heat exchange capacities for the different circulation circuits, the installation space for the heat exchanger is appropriately utilized. The heat exchanger is obviously superior in heat exchange capacity to a single-row heat exchanger. The sections of the first heat exchange tube 1A1 and the sections of the second heat exchange tube 1A2 can be substantially parallel to each other, and can also be substantially parallel to the second heat exchange tubes IB. With reference to FIG. 8 and also to FIGS. 6 and 7, in some embodiments of the present invention, the heat exchange tubes 1 further include third heat exchange tubes 1C configured to form a third circuit. As shown in FIG. 8, the first heat exchange tube 1A includes: a first heat exchange tube portion 1A1 and a second heat exchange tube portion 1A2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting portion 1A3 that connects and communicates seamlessly with the first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2. As shown in FIG.8, the second heat exchange tube IB includes: a first heat exchange tube part 1B1 and a second heat exchange tube part 1B2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting part 1B3 that connects and communicates smoothly with the first heat exchange tube part 1B1 and the second heat exchange tube part 1B2 with each other.The first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2 of the first heat exchange tube 1A are in contact with the same first fin 2 located on the side of the first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2 of the first heat exchange tube 1A in the second direction D2 and are in contact with the same first fin 2 located on the other side of the first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2 of the first heat exchange tube 1A in the second direction D2.The part of the first tube for heat exchange 1B1 and the part of the second tube for heat exchange 1B2 of the second tube for heat exchange IB are in contact with the same first fin 2 located on one side of the part of the first tube for heat exchange 1B1 and the part of the second tube for heat exchange 1B2 of the second tube for heat exchange IB in the second direction D2 and are in contact with the same first fin 2 located on the other side of the part of the first tube for heat exchange 1B1 and the part of the second tube for heat exchange 1B2 of the second tube for heat exchange IB in the second direction D2.According to the examples of the present invention, the parts of the first heat exchange tube 1A1 of the first heat exchange tubes 1A, the parts of the first heat exchange tube 1B1 of the second heat exchange tubes IB, and the third heat exchange tubes 1C are arranged in a row, the parts of the second heat exchange tube 1A2 of the first heat exchange tubes 1A are arranged in a row, the parts of the second heat exchange tube 1B2 of the second heat exchange tubes IB are arranged in a row, and the parts of the second heat exchange tube 1A2 of the first heat exchange tubes 1A and the parts of the second heat exchange tube 1B2 of the second heat exchange tubes IB are located on both sides of the third heat exchange tubes 1C in the third direction D3, 10 respectively. Referring to FIG. 8 and also to FIGS. 6 and 7, in some embodiments of the present invention, the heat exchanger 100 further includes: first fins 2, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction DI; second fins, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction DI; and third fins, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction DI. The heat exchange tubes 25 further include third heat exchange tubes 1C configured to form a third circuit.The first heat exchange tube 1A includes: a first heat exchange tube portion 1A1 and a second heat exchange tube portion 1A2 arranged in the third direction D3 perpendicular to both the first direction Di and the second direction D2; and a connecting portion 1A3 that connects and communicates seamlessly with the first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2. The second heat exchange tube IB includes: a first heat exchange tube portion 1B1 and a second heat exchange tube portion 1B2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting portion. 1B3, which connects and communicates seamlessly with the first heat exchange tube portion 1B1 and the second heat exchange tube portion 1B2. The first heat exchange tube portions 1A1 of the first heat exchange tubes 1A, the first heat exchange tube portions 1B1 of the second heat exchange tubes IB, and the third heat exchange tubes 1C are arranged in a row; the second heat exchange tube portions 1A2 of the first heat exchange tubes 1A are arranged in a row; the second heat exchange tube portions 1B2 of the second heat exchange tubes IB are arranged in a row, and the second heat exchange tube portions 1A2 of the first heat exchange tubes 1A and the second heat exchange tube portions 1B2 of the second heat exchange tubes IB are located on both sides of the third heat exchange tubes 1C in the third direction D3, respectively. The first fins 2 and a first group of heat exchange tubes 1 composed of the second heat exchange tube portions 1A2 of the first heat exchange tubes 1A are arranged alternately in a row in the second direction D2.The second fins and a second group of heat exchange tubes 1, composed of the first heat exchange tube parts 1A1 of the first heat exchange tubes 1A, the first heat exchange tube parts 1B1 of the second heat exchange tubes IB, and the third heat exchange tubes 1C, are arranged alternately in a row in the second direction D2. In addition, the third fins and a third group of heat exchange tubes 1, composed of the second heat exchange tube parts 1B2 of the second heat exchange tubes IB, are arranged alternately in a row in the second direction D2. Referring to FIG. 8 and also to FIGS. 6 and 7, in some embodiments of the present invention, the heat exchanger tube 100 further includes: first fins 2, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction DI; and second fins, at least a portion of each of which extends in the first direction DI, and which are arranged in a row in the second direction D2 perpendicular to the first direction DI. The heat exchange tubes 1 further include third heat exchange tubes 1C configured to form a third circuit.The first heat exchange tube 1A includes: a first heat exchange tube portion 1A1 and a second heat exchange tube portion 1A2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting portion 1A3 that connects and communicates seamlessly with the first heat exchange tube portion 1A1 and the second heat exchange tube portion 1A2. The second heat exchange tube IB includes: a first heat exchange tube portion 1B1 and a second heat exchange tube portion 1B2 arranged in the third direction D3 perpendicular to both the first direction DI and the second direction D2; and a connecting portion 1B3 that connects and communicates seamlessly with the first heat exchange tube portion 1B1 and the second heat exchange tube portion 1B2.The parts of the first heat exchange tube 1A1 of the first heat exchange tubes 1A, the parts of the first heat exchange tube 1B1 of the second heat exchange tubes IB, and the third heat exchange tubes 1C are arranged in a row, and the parts of the second heat exchange tube 1A2 of the first heat exchange tubes 1A and the parts of the second heat exchange tube 1B2 of the second heat exchange tubes IB are arranged in a row and are located on the sides of the third heat exchange tubes 1C in the third direction D3.The first fins 2 and a first group of heat exchange tubes 1, composed of the second heat exchange tube parts 1A2 of the first heat exchange tubes 1A and the second heat exchange tube parts 1B2 of the second heat exchange tubes IB, are arranged alternately in a row in the second direction D2. In addition, the second fins and a second group of heat exchange tubes 1, composed of the first heat exchange tube parts 1A1 of the first heat exchange tubes 1A, the first heat exchange tube parts 1B1 of the second heat exchange tubes IB, and the third heat exchange tubes 1C, are arranged alternately in a row in the second direction D2. Referring to FIGS. 6 to 8, in some embodiments of the present invention, the heat exchange tube 1 includes a first end 11 and a second end 12. The heat exchanger 100 further includes: two first manifolds 3A that are connected and in fluid communication with the first ends 11 and the second ends 12 of the first heat exchange tubes 1A, respectively; two second manifolds 3B that are connected and in fluid communication with the first ends 11 and the second ends 12 of the second heat exchange tubes 1B, respectively; and two third manifolds 3C that are connected and in fluid communication with the first ends 11 and the second ends 12 of the third heat exchange tubes 1C, respectively.According to embodiments of the present invention, the manifolds for one circuit need not be used or may be closed, such that the heat exchanger 100 can be applied to a two-circuit system. Furthermore, the arrangement sequence, in the third direction, of the three manifolds of the heat exchanger 100 on one side of the heat exchanger 100 in the first direction can be changed according to requirements. With reference to FIGS. 6 to 7, in some embodiments of the present invention, the first heat exchange tubes 1A, the second heat exchange tubes IB, and the third heat exchange tubes 1C are arranged alternately in the second direction D2. In other embodiments of the present invention, groups of the first heat exchange tube, each composed of at least one (one, two, three or more) of the first heat exchange tubes 1A, groups of the second heat exchange tube, each composed of at least one (one, two, three or more) of the second heat exchange tubes IB, and groups of the third heat exchange tube, each composed of at least one (one, two, three or more) of the third heat exchange tubes 1C, are arranged alternately in the second direction D2.In other words, a plurality of groups of the first heat exchange tube, a plurality of groups of the second heat exchange tube, and a plurality of groups of the third heat exchange tube are arranged alternately. The heat exchange tube 1 may be a flat tube. According to the examples of the present invention, the first heat exchange tubes 1A, the second heat exchange tubes IB, the third heat exchange tubes 1C, and the first fins 2 are aligned, on at least one side in the third direction D3, perpendicular to both the first direction DI and the second direction D2, with each other in the second direction D2.According to the examples of the present invention, the first heat exchange tubes 1A, the second heat exchange tubes IB, the third heat exchange tubes 1C, and the first fins 2 are arranged alternately in a row in the second direction. D2, or are arranged in a row in any other manner. In some examples of the present invention, the first heat exchange tubes 1A include a plurality of groups of the first heat exchange tube, the second heat exchange tubes IB include a plurality of groups of the second heat exchange tube, the third heat exchange tubes 1C include a plurality of groups of the third heat exchange tubes, and the plurality of groups of the first heat exchange tube, the plurality of groups of the second heat exchange tube, and the plurality of groups of the third heat exchange tube are arranged alternately in the second direction D2. The plurality of groups of the first heat exchange tube have the same or different numbers of first heat exchange tubes 1A.The plurality of the groups of the second heat exchange tube have the same number or different numbers of second heat exchange tubes IB. The plurality of the groups of the third heat exchange tube have the same number or different numbers of third heat exchange tubes 1C. Referring to FIGS. 6 to 7, in some embodiments of the present invention, the first fin 2 has the same size in the third direction D3 perpendicular to both the first direction DI and the second direction D2 as the largest in a portion of the first heat exchange tube 1A in contact with the first fin 2, a portion of the second heat exchange tube IB in contact with the first fin 2, and a portion of the third heat exchange tube 1C in contact with the first fin 2. Therefore, all of the first heat exchange tube 1A, the second heat exchange tube IB, and the third heat exchange tube 1C are in contact with the first fin 2 in all their sizes (e.g., across their entire widths) in the third direction D3. Referring to FIG. 8 and also to FIGS. 6 and 7, in some embodiments of the present invention, different capacities of different circulation circuits can be achieved by changing the lengths of the heat exchange tubes 1, while a different length 20 of a heat exchange tube 1 for a different circuit can be achieved by bending a heat exchange tube 1. In addition to achieving different heat exchange capacities for different circulation circuits, an installation space 25 is conveniently used for the heat exchanger. The heat exchanger is obviously superior in heat exchange capacity to the single-row heat exchanger. The number of circulation circuits can be greater than or equal to 2.A length of heat exchange tube for at least one circuit is greater than the length of the other circuit(s), and the heat exchange tube parts formed by bending the heat exchange tubes 1 for at least one circuit are substantially parallel to the other heat exchange tubes 1. Referring to FIG. 8 and also to FIGS. 6 and 7, in some embodiments of the present invention, the first heat exchange tube portion, the second heat exchange tube portion, and the connecting portion of the heat exchange tube 1 are formed by bending a single heat exchange tube 1. According to the embodiments of the present invention, referring to FIGS. 6 to 8, at least some of the plurality of first fins 2 are shared 20 by the first heat exchange tubes 1I, the second heat exchange tubes IB, and the third heat exchange tubes 1C. Consequently, if one of the three circuits of a three-circuit air conditioning system is turned off, at least some of the first fins for one circuit 25 can be used for the other two circuits to improve the heat exchange efficiency of the heat exchanger. According to the embodiments of the present invention, the heat exchange capacity of the heat exchanger in the load condition part is improved, 5 the heat exchanger can maintain a sufficient flow rate of a refrigerant to return an oil in the load condition part, and in the event where one circuit fails, the air conditioning system can continue operating through another circuit. According to the embodiments of the present invention, the heat exchanger has more than two circuits and can be applied to a system with a plurality of completely separate circuits. Each circuit has a separate compressor, and in each circuit, a refrigerant 15 flows independently. The three-circuit heat exchanger can be applied not only to a three-circuit system but also to a two-circuit system. Furthermore, the previous embodiments of the present invention can be combined into new embodiments. 0 It is noted that with regard to this date, the best method known to the applicant to put the aforementioned invention into practice is the one that is clear from the present description of the invention.
Claims
Having described the invention as above, the following five claims are claimed as property:
1. A heat exchanger characterized in that it comprises: heat exchange tubes, the heat exchange tubes comprising first heat exchange tubes configured to form a first circuit, and second heat exchange tubes configured to form a second circuit; and first fins, at least a portion of each of which extends in a first direction, extending in a row in a second direction perpendicular to the first direction, and arranged alternately with the heat exchange tubes, wherein: the heat exchange tube comprises a first end on one side of the heat exchanger in the first direction, a second end on the other side of the heat exchanger in the first direction, and an intermediate portion between the first end and the second end,25 The first end of the first heat exchange cube is bent towards the side of the heat exchanger in a third direction perpendicular to both the first and second directions, and the middle part and the second end of the first heat exchange tube 5 extends in the first direction, and the second end of the second heat exchange tube is bent towards the side of the heat exchanger in the third direction perpendicular to both the first and second directions, and the middle part 10 and the first end of the second heat exchange tube extends in the first direction.
2. The thermo changer according to claim 1, characterized in that: the thermo changer bends into an L shape, a U shape, or a C shape when viewed in the second direction.
3. The heat exchanger according to claim 1, characterized in that it further comprises: two first manifolds that are connected and in fluid communication with the first ends and the second ends of the first heat exchange tubes, respectively; and two second manifolds that are connected and in fluid communication with the first ends and the second ends of the second heat exchange tubes, respectively.
4. The heat exchanger according to claim 1, characterized in that: the heat exchange tube comprises a first end and a second end, the heat exchanger further comprises: two first manifolds that are connected and in fluid communication with the first ends and the second ends of the first heat exchange tubes, 10 respectively;and two second manifolds that are connected and in fluid communication with the first ends and the second ends of the second heat exchange tubes, respectively, and 15 one of the first manifold and the second manifold on one side, in the first direction, of the heat exchanger is closer to a center, in the first direction, of the heat exchanger than the other in the first direction, such that at least a portion of one of the first manifold and 20 the second manifold is located in a region between the other of the first manifold and the second manifold and the first fins in the first direction, to prevent at least a portion of the air stream from passing through a gap between the other of the first manifold and the second manifold and the first 2 5- fins.; 5. The heat exchanger according to claim 1, characterized in that: first tube groups for heat exchange, each composed of at least one of the first heat exchange tubes, and second tube groups for heat exchange, each composed of at least one of the second heat exchange tubes, are arranged alternately in the second direction.
6. The heat exchanger according to claim 1, characterized in that: the first heat exchange tubes, the second heat exchange tubes, and the first fins are aligned, on at least one side in a third direction perpendicular to both the first and second directions, with each other in the second direction.
7. The heat exchanger according to claim 1, characterized in that: the first heat exchange tube comprises: a first part of the heat exchange tube and a part of the second heat exchange tube arranged in a third direction perpendicular to both the first and second directions;and a connecting part that connects and communicates fluidly with the part of the first tube for heat exchange and the part of the second tube for heat exchange, and the part of the first tube for heat exchange and the part of the second tube for heat exchange are in contact with the same first fin located on one side of the part of the first tube for heat exchange and the part of the second tube for heat exchange in the second direction, and are in contact with the same first fin located on the other side of the part of the first tube for heat exchange and the part of the second tube for heat exchange in the second direction. 10; 8. The heat exchanger according to claim 1, characterized in that it further comprises: first fins, at least a portion of each of which extends in a first direction, and which extends in a row in a second direction perpendicular 15 to the first direction; and second fins, at least a portion of each of which extends in the first direction, and which are arranged in a row in the second direction perpendicular to the first direction, 20 wherein the first heat exchange tube comprises: a first part of the heat exchange tube and a part of the second heat exchange tube arranged in a third direction perpendicular to both the first and second directions;and a connecting part 25 that connects and communicates smoothly with the part of the first heat exchange tube and the part of the second heat exchange tube with each other, wherein the first fins and a first group of heat exchange tubes composed of both, the parts 5 of the first heat exchange tube of the first heat exchange tubes and the second heat exchange tubes are arranged alternately in a row in the second direction perpendicular to the first direction, 10 wherein the second fins and a second group of heat exchange tubes composed of the parts of the second heat exchange tube of the first heat exchange tubes are arranged alternately in a row in the second direction perpendicular to the first 15 direction.; 9. The heat exchanger according to claim 7 or 8, characterized in that: the part of the first tube for heat exchange, the part of the second cube for heat exchange, 20 and the connecting part of the first tube for heat exchange are formed by bending a single heat exchange tube.
10. The heat exchanger according to claim 1, characterized in that: the heat exchange tubes further comprise 25 third heat exchange tubes configured to form a third circuit, and first heat exchange tube groups each comprising at least one of the first heat exchange tubes, second heat exchange tube groups each comprising at least one of the second heat exchange tubes, and third heat exchange tube groups each comprising; at least one of the third heat exchange tubes are arranged alternately in the second direction. 10 11. The heat exchanger according to claim 1, characterized in that it further comprises: first fins, at least a portion of each of which extends in a first direction and extends in a row in a second direction perpendicular to the first direction; second fins, at least a portion of each of which extends in the first direction and is arranged in a row in the second direction perpendicular to the first direction; and third fins, at least a portion of each of which extends in the first direction and is arranged in a row in the second direction perpendicular to the first direction, wherein the heat exchange tubes further comprise third heat exchange tubes configured to form a third circuit,wherein each of the first heat exchange cube and the second heat exchange tube comprises: a first heat exchange tube portion and a second heat exchange tube portion arranged in a third direction perpendicular to both the first and second directions; and a sieving portion that connects and communicates fluidly with the first heat exchange tube portion and the second heat exchange tube portion with each other, wherein the first heat exchange tube portions of the first heat exchange cubes, the first heat exchange tube portions of the second heat exchange tubes, and the third heat exchange tubes are arranged in a row, and the second heat exchange tube portions of the first heat exchange tubes are arranged in a row.The parts of the second tube for heat exchange of the second heat exchange tubes are arranged in a row, and the parts of the second tube for heat exchange of the first heat exchange tubes and the parts of the second tube for heat exchange of the second heat exchange tubes are located on both sides of the third heat exchange tubes in the third direction, respectively, wherein the first fins and a first group of heat exchange tubes composed of the parts of the second tube for heat exchange of the first heat exchange tubes are arranged alternately in a row in the second direction, wherein the second fins and a second group of heat exchange tubes composed of the parts of the first tube for heat exchange of the first heat exchange tubes,The parts of the first tube for the heat exchange of the second heat exchange cubes, and the third heat exchange tubes are arranged alternately in a row in the second direction, and wherein the third fins and a third group of heat exchange tubes composed of parts of the second tube for the heat exchange of the second heat exchange tubes are arranged alternately in a row in the second direction.
12. The heat exchanger according to claim 1, characterized in that it further comprises: 20 first fins, at least a portion of each of which extends in a first direction, and which extends in a row in a second direction perpendicular to the first direction; and 25 second fins, at least a portion of each of which extends in the first direction, and which are arranged in a row in the second direction perpendicular to the first direction, wherein the heat exchange tubes further comprise third heat exchange tubes configured 5 to form a third circuit, wherein each of the first heat exchange tube and the second heat exchange tube comprises: a first part of the heat exchange tube and a part of the second heat exchange tube 10 arranged in a third direction perpendicular to both,the first direction and the second direction; and a connecting part that connects and communicates smoothly with the heat exchange portion of the first tube and the heat exchange portion of the second tube, 15 wherein the heat exchange portions of the first heat exchange cubes, the heat exchange portions of the first heat exchange tubes, and the third heat exchange tubes are arranged in a row,and the 20 parts of the second tube for heat exchange of the first heat exchange tubes and the parts of the second tube for heat exchange of the second heat exchange tubes are arranged in a row and are located on the sides of the third heat exchange tubes in the third direction where the first fins and a first group of heat exchange tubes composed of the parts of the second tube for heat exchange of the first heat exchange tubes and the parts of the second tube for heat exchange of the second heat exchange tubes are arranged alternately in a row in the second direction, and where the second fins and a second group of heat exchange tubes composed of the parts of the first tube for heat exchange of the first heat exchange tubes,The parts of the first heat exchange tube of the second heat exchange cubes, and the third heat exchange tubes are arranged alternately in a row in the second direction. 15, 13. The heat exchanger according to claim 1, characterized in that: the first fin has the same size in a third direction perpendicular to both the first and second directions as the largest of a portion of the first heat exchange tube in contact with the first fin and a portion of the second heat exchange tube in contact with the first fin.
14. The heat exchanger according to any of claims 10 to 12, characterized in that: the heat exchange tube comprises a first end and a second end, the heat exchanger further comprises: two first manifolds that are connected and in fluid communication with the first and second ends of the first heat exchange tubes, respectively; two second manifolds that are connected and in fluid communication with the first and second ends of the second heat exchange tubes, respectively; and two third manifolds that are connected and in fluid communication with the first and second ends of the third heat exchange tubes, respectively.
15. An air conditioning system characterized in that it comprises: the heat exchanger according to the