WO2021115461A1

WO2021115461A1 - Heat exchange tube and heat exchanger having same

Info

Publication number: WO2021115461A1
Application number: PCT/CN2020/135958
Authority: WO
Inventors: 童仲尧
Original assignee: 杭州三花微通道换热器有限公司
Priority date: 2019-12-13
Filing date: 2020-12-11
Publication date: 2021-06-17

Abstract

A heat exchange tube (1) and a heat exchanger having same. A plurality of circulation channels are provided inside the heat exchange tube (1). The plurality of circulation channels comprise a first channel (201) and a second channel (301). The heat exchange tube (1) comprises a first section (100), a second section (200) and a third section (300). A plurality of the first channels (201) constitute a first channel layer along a second direction (B), and a plurality of the second channels (301) constitute a second channel layer along the second direction (B), the number of the second channel layers being greater than that of the first channel layers. The heat exchange tube (1) is divided, along the second direction (B), into a first region and a second region which are equal in width, the cross section of the heat exchange tube (1) takes its shape with the intersection of the width and the thickness of the heat exchange tube (1) and comprises circulation sections, and the total area of the circulation sections in the first region is greater than that in the second region. The heat exchange efficiency of the heat exchanger using the heat exchange tube (1) is improved, and the welding quality of the heat exchanger is further improved.

Description

Heat exchange tube and heat exchanger with the same

Cross-references to related applications

This application requires that the application number is 201922443687.7, the application date is December 27, 2019; the application number is 201911284474.2, the application date is December 13, 2019; the application number is 202020454286.1, and the application date is March 31, 2020. Three Chinese patents For the priority and rights of the application, the entire content of the above-mentioned Chinese patent application is hereby incorporated into this application by reference.

Technical field

The embodiments of the present application relate to the field of heat exchange technology, in particular to a heat exchange tube and a heat exchanger having the heat exchange tube.

Background technique

In the heat exchange system, along the flow direction of the refrigerant, the refrigerant evaporates or condenses at different positions in the side-by-side flow channels, resulting in a mismatch between the flow distribution of the refrigerant in the flow channel and the heat exchange temperature difference. There is a significant temperature difference near the leeward side, and an obvious supercooling or superheating temperature gradient is formed on the flat tube section near the outlet of the heat exchanger, and the heat exchange capacity on the windward side cannot be better utilized.

In addition, in the related art, the multi-channel heat exchanger includes a header, a plurality of heat exchange tubes connected between two headers, and fins arranged between adjacent heat exchange tubes. As far as the inventor knows, a kind of heat exchange tube used in a multi-channel heat exchanger is formed by folding sheet metal. The surface of the heat exchange tube has a brazing layer. During the welding process of the heat exchanger, the brazing layer melts, resulting in heat exchange. The thickness of the tube is reduced, and it cannot be compressed to achieve a smaller welding gap, which affects the welding quality of the heat exchanger.

Summary of the invention

For this reason, an embodiment of the present application proposes a heat exchange tube that can improve the heat exchange capacity.

Another embodiment of the present application also proposes a heat exchanger including the above heat exchange tube.

According to the heat exchange tube of at least one embodiment of the present application, the heat exchange tube has a plurality of circulation channels therein, the heat exchange tube includes a tube wall and fins, the tube wall includes a first section, and the first section includes The first side wall and the second side wall spaced apart along the first direction, the third side wall and the fourth side wall spaced apart along the second direction, the distance between the first side wall and the second side wall The distance is smaller than the distance between the third side wall and the fourth side wall, the heat sink includes a second section and a third section, and the second section and the third section are arranged along a second direction, The second section and the third section are located inside the first section, the first section, the second section, and the third section are all formed by bending a sheet, and the second section includes the first section. Two connecting segments and a second spacer segment, the second connecting segment has two side edges, and the second spacer segments adjacent in the second direction are respectively connected to the two side edges of the second connecting segment, Two adjacent first passages in the second direction include a second connecting section that separates the two first passages, and the third section includes a third connecting section and a third spacing section, so The third connecting section has two sides, and the third spacer sections adjacent in the second direction are respectively connected to both sides of the third connecting section, and the two adjacent sections in the second direction are connected to each other. The second passage includes a third interval section that separates the two second passages, the heat exchange tube has a cross-section in the length direction of the heat exchange tube, and the cross-section includes a flow cross-section. The heat exchange tube is divided into two regions with equal lengths along the second direction, including a first region and a second region, and the total area of the flow cross section in the first region is greater than the total area of the flow cross section in the second region.

In some embodiments, the plurality of circulation channels includes a first channel and a second channel, the first channel is at least partially located in the first area, the second channel is at least partially located in the second area, and the plurality of The first channel forms a first channel layer along the second direction, a plurality of the second channels form a second channel layer along the second direction, and the first channel layer is one or more and is arranged along the first direction, so The second channel layers are multiple and arranged along a first direction, and the number of the second channel layers is greater than the number of the first channel layers.

In some embodiments, there is one first channel layer and two second channel layers.

In some embodiments, the third section further includes a first straight section, and the plurality of third spacing sections include third spacing sections located on both sides of the first straight section in the first direction. Group and a second group of third spacer segments, a plurality of the third connecting segments including a first group of third connecting segments located on both sides of the first straight segment in the first direction and a second group of third connecting segments , The first group of the third spacer section and the first group of the third connecting section constitute a first bending section, and the second group of the third spacer section and the second group of the third connecting section constitute a second bending section. Bent section, the first section, the first bent section, and the first straight section define a second channel layer, the first section, the second bent section, and the first straight section A straight section defines another second channel layer.

In some embodiments, the first section includes at least a first part, a second part, and a third part. The first part and the second part are arranged along a second direction and form the first side wall. The third part constitutes the second side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, and the first bent section is adjacent to the first side The wall, the second bending section is adjacent to the second side wall.

In some embodiments, the first section includes at least a first part, a second part, and a third part, and the second part and the third part are arranged along the second direction and constitute the second side wall, so The first part constitutes the first side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, and the first bent section is adjacent to the first side The wall, the second bending section is adjacent to the second side wall.

In some embodiments, the first section includes at least a first part, a second part, a third part, and a fourth part. The first part and the second part are arranged in a second direction and form the first side. The third part and the fourth part are arranged along the second direction and constitute the second side wall, the first part and the third part are adjacent to the third side wall, and the second part And the fourth part is adjacent to the fourth side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, and the first bent section is adjacent to the The first side wall, and the second bent section is adjacent to the second side wall.

In some embodiments, the heat exchange tube further includes a fourth section that is connected to the first section and extends along the first direction, and the fourth section is located in the first section and extends along the The second direction is located between the second section and the third section. In the second direction, the flow channel includes a first channel layer and a second channel layer located on both sides of the fourth section, so The first channel layer includes a plurality of first channels, and the second channel layer includes a plurality of second channels.

In some embodiments, the thickness of the sheet of the second section is greater than or equal to the thickness of the sheet of the third section.

In some embodiments, the third section includes a plurality of third spacer sections, and the thickness of the sheet of the plurality of third spacer sections ranges from a side adjacent to the second section to a side far away from the second section slowing shrieking.

In some embodiments, the length of the second section in the second direction is less than the length of the third section.

In some embodiments, the heat exchange tube includes a cross section in the length direction of the heat exchange tube, and the total area of the flow cross section in the first region is 1.04 to the total area of the flow cross section in the second region. 1.4 times.

In some embodiments, each of the first channel layers is divided into two regions of equal length along the second direction, including a third region and a fourth region, and the third region and the fourth region are both provided with At least two first channels, each of the second channel layers is divided into two regions of equal length along the second direction, including a fifth region and a sixth region, both of which are provided There are at least two second channels, and the heat exchange tube has a cross section in the length direction of the heat exchange tube. In this cross section, the total area of the cross section of the first channel in the third region is greater than that of the The total area of the cross section of the first channel in the fourth region and/or the total area of the cross section of the second channel in the fifth region is greater than the total area of the cross section of the second channel in the sixth region.

In some embodiments, the heat exchange tube has a cross-section in the length direction of the heat exchange tube, in which the cross-sectional area of the first channel gradually decreases along the second direction and/or the first The cross-sectional area of the two channels gradually decreases along the second direction.

In some embodiments, the second section and the third section are bent from the same plate and/or the second section and the first section are bent from the same plate.

The heat exchange tube according to at least one embodiment of the present application includes: a first side wall and a second side wall disposed opposite to each other in a first direction, and the heat exchange tube further includes a third side wall and a third side wall disposed opposite to each other in the second direction. The fourth side wall, the distance between the first side wall and the second side wall is smaller than the distance between the third side wall and the fourth side wall, and the heat exchange tube has a plurality of circulating Channel, the plurality of circulation channels include a first channel and a second channel, the plurality of first channels form a first channel layer along the second direction, and the first channel layer is one or more than two and runs along the first channel. Arranged in a direction, a plurality of the second channels form a second channel row along the first direction, at least one of the plurality of second channel rows includes at least two second channels along the second direction, the first The number of channel layers is smaller than the number of second channels arranged along the second direction. The heat exchange tube includes a first section, a second section, and a third section. The second section and the third section The sections are arranged along the second direction, the first section is formed by bending a sheet, at least one of the second section and the third section is made of a profile, the first section is a pipe wall, and the first section is a pipe wall. The second section and the third section are internal heat sinks, the second section and the third section are located inside the first section, and the second section includes a second connecting section and a second spacer section. The second connecting section has two side edges, the adjacent second spacer sections are respectively connected to the two side edges of the second connecting section, and the two adjacent first passages include two The second connecting section separated by the first channel, the heat exchange tube is divided into two regions with equal width along the second direction, including a first region and a second region, and the first channel is at least partially located in the first region , The second channel is at least partially located in the second region, the heat exchange tube has a cross section that intersects along the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, the cross section includes a flow cross section, and the first The total area of the circulation cross-sections in one area is greater than the total area of the circulation cross-sections in the second area.

The heat exchanger according to at least one embodiment of the present application includes: a first tube and a second tube, the first tube and the second tube are arranged substantially in parallel; a plurality of heat exchange tubes, a plurality of the heat exchange tubes are parallel Provided that one end of the heat exchange tube along its length direction is connected to the first tube, the other end of the heat exchange tube along its length direction is connected to the second tube, and the width direction of the heat exchange tube is substantially Perpendicular to the length direction of the first tube, the heat exchange tube has a plurality of circulation channels in it, the heat exchange tube includes a tube wall and a heat sink, the tube wall includes a first section, and the first section includes an edge The first side wall and the second side wall spaced apart in the first direction, the third side wall and the fourth side wall spaced apart in the second direction, the distance between the first side wall and the second side wall Is smaller than the distance between the third side wall and the fourth side wall, the heat sink includes a second section and a third section, and the second section and the third section are arranged along the second direction, so The second section and the third section are located inside the first section, the first section, the second section, and the third section are all formed by bending a sheet, and the second section includes a second section. A connecting section and a second spacer section, the second connecting section has two side edges, and the adjacent second spacer sections are respectively connected to the two side edges of the second connecting section, and the two adjacent ones are connected to each other. The first passage includes a second connecting section separating the two first passages, the third section includes a third connecting section and a third spacer section, and the third connecting section has two sides, The adjacent third spacer sections are respectively connected to both sides of the third connecting section, and the two adjacent second channels include a third spacer section that separates the two second channels The heat exchange tube has a cross section in the length direction of the heat exchange tube, the cross section includes a flow cross section, and the heat exchange tube is divided into two regions of equal length along the second direction, including a first region and a second region. In the second zone, the total area of the circulation cross-section in the first zone is greater than the total area of the circulation cross-section in the second zone, in the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow, so The second section is closer to the inlet side of the air flow of the heat exchanger than the third section; a plurality of fins are connected with the heat exchange tube.

In some embodiments, the heat exchange tube has a cross section in the length direction of the heat exchange tube, and the total area of the flow cross section in the first region is 1.04 to the total area of the flow cross section in the second region. 1.4 times.

The heat exchanger according to at least one embodiment of the present application includes: a first tube and a second tube, the first tube and the second tube are arranged substantially in parallel; a plurality of heat exchange tubes, a plurality of the heat exchange tubes are parallel Provided that one end of the heat exchange tube along its length direction is connected to the first tube, the other end of the heat exchange tube along its length direction is connected to the second tube, and the width direction of the heat exchange tube is substantially Perpendicular to the length direction of the first tube, the heat exchange tube includes: a first side wall and a second side wall disposed opposite to each other in a first direction, and the heat exchange tube further includes a third side disposed opposite to each other in a second direction Wall and a fourth side wall, the distance between the first side wall and the second side wall is smaller than the distance between the third side wall and the fourth side wall, and the heat exchange tube has more The plurality of circulation channels include a first channel and a second channel, and the plurality of first channels form a first channel layer along the second direction, and the first channel layer has one or more than two channels along the Are arranged in a first direction, a plurality of the second channels form a second channel row along the first direction, at least one of the plurality of second channel rows includes at least two second channels along the second direction, the The number of layers of the first channel layer is smaller than the number of the second channels arranged along the second direction. The heat exchange tube includes a first section, a second section and a third section. The second section and the The third section is arranged along the second direction, the first section is formed by bending a sheet, at least one of the second section and the third section is made of a profile, the first section is a pipe wall, so The second section and the third section are internal heat sinks, the second section and the third section are located inside the first section, and the second section includes a second connecting section and a second spacer section, The second connecting section has two sides, the adjacent second spacer sections are respectively connected to the two sides of the second connecting section, and the adjacent two first passages include The second connecting section separated by the two first channels, the heat exchange tube is divided into two regions of equal width along the second direction, including a first region and a second region, and the first channel is at least partially located in the first region. In the region, the second passage is at least partially located in the second region, the heat exchange tube has a cross section that intersects the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, and the cross section includes a flow cross section, so The total area of the circulation section in the first region is greater than the total area of the circulation section in the second region. In the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow, the second section The third section is adjacent to the inlet side of the air flow of the heat exchanger; a plurality of fins are connected with the heat exchange tube.

The heat exchanger according to at least one embodiment of the present application includes: a first tube and a second tube, the first tube and the second tube are arranged at intervals; a plurality of heat exchange tubes, a plurality of the heat exchange tubes are arranged along the The first tube is arranged at intervals in the length direction, one end of the heat exchange tube is inserted into the first tube to be connected to the first tube, and the other end of the heat exchange tube is inserted into the second tube To be connected to the second tube, the heat exchange tube includes a channel, the channel communicates the first tube and the second tube, the plurality of heat exchange tubes include a plurality of first heat exchange tubes and at least A second heat exchange tube, at least a part of the tube body of the first heat exchange tube is formed by folding sheet metal, the tube body of the second heat exchange tube is formed by one-time forming, and the number of the second heat exchange tube Less than the number of the first heat exchange tube, the second heat exchange tube and the first heat exchange tube are spaced apart in the length direction of the first tube, and the first tube includes At least two end faces, the second heat exchange tube includes a first side wall and a second side wall that are arranged opposite to each other in the length direction of the first tube, and at least one first side wall of the second heat exchange tube The distance from one end surface of the first tube is smaller than the distance between the first side wall of the second heat exchange tube and the other end surface of the first tube.

According to the heat exchanger of at least one embodiment of the present application, the first heat exchange tube formed by folding and forming at least part of the tube body from a sheet and the second tube body formed by one-step forming are provided between the first tube and the second tube. Heat exchange tubes, the number of first heat exchange tubes is more than that of second heat exchange tubes, and the distance between the first side wall of the second heat exchange tube and one end surface of the first tube is compared with that of the second heat exchange tube The distance between the first side wall and the other end surface of the first tube is small, in other words, the second heat exchange tube is adjacent to one end surface of the first tube. Compared with the heat exchanger in which the heat exchange tubes in the prior art are all folded and formed by sheet metal, the welding quality of the heat exchanger is improved.

In some embodiments, the ratio of the distance from the first side wall of the second heat exchange tube to the one end surface of the first tube to the length of the first tube is less than or equal to 1:5.

In some embodiments, the at least two end faces of the first tube include a first end face and a second end face, and there are at least two second heat exchange tubes, and the first side wall of one second heat exchange tube is connected to The distance between the first end surfaces of the first tube is smaller than the distance between the first side wall of the one second heat exchange tube and the second end surface of the first tube, and the one second heat exchange tube is located One of the outermost sides of the plurality of heat exchange tubes in the length direction of the first tube; the distance between the first side wall of the other second heat exchange tube and the second end surface of the first tube is less than this The distance between the first side wall of the other second heat exchange tube and the first end surface of the first tube, and the other second heat exchange tube is located in the plurality of heat exchange tubes in the first tube The other outermost in the length direction.

In some embodiments, the heat exchanger further includes a solid plate, one end of the solid plate is connected to the first tube, and the other end of the solid plate is connected to the second tube. The solid plate and the first heat exchange tube are spaced apart in the length direction of the first tube, the solid plate and the second heat exchange tube are spaced apart in the length direction of the first tube, so The solid plate includes a first side wall and a second side wall arranged opposite to each other in the length direction of the first tube, and the distance between the first side wall of the solid plate and one end surface of the first tube is less than The distance between the first side wall of the solid plate and the other end surface of the first tube.

In some embodiments, the heat exchange tube includes a first side wall and a second side wall that are arranged oppositely and in parallel, and a third side wall and a fourth side wall that are arranged oppositely and in parallel. The distance between the side wall and the second side wall is smaller than the distance between the third side wall and the fourth side wall of the heat exchange tube, and the thickness of the second heat exchange tube is greater than that of the first heat exchange tube. thickness.

The heat exchanger according to at least one embodiment of the present application includes: a first tube and a second tube, the first tube and the second tube are arranged at intervals; a plurality of heat exchange tubes, a plurality of the heat exchange tubes are arranged along the The first tube is arranged at intervals in the length direction, one end of the heat exchange tube is inserted into the first tube to be connected to the first tube, and the other end of the heat exchange tube is inserted into the second tube To be connected to the second tube, the heat exchange tube includes a channel, the channel communicates the first tube and the second tube, the plurality of heat exchange tubes include a plurality of first heat exchange tubes and at least A second heat exchange tube, at least a part of the tube body of the first heat exchange tube is formed by folding sheet metal, the tube body of the second heat exchange tube is formed by one-time forming, and the number of the second heat exchange tube Less than the number of the first heat exchange tubes, the second heat exchange tubes and the first heat exchange tubes are spaced apart in the length direction of the first tube, and the first tube includes a first tube section and a first tube section. Two pipe sections, the first pipe section and the second pipe section of the first pipe are spaced apart in the length direction of the first pipe by a first spacer, and the first spacer includes opposing parts in the length direction of the first pipe. The first pipe includes a first end surface and a second end surface, the first pipe section of the first pipe includes the first end surface of the first pipe, and the first pipe The first tube section includes an opening, at least one of the second heat exchange tubes is connected to the first tube section of the first tube, and the second heat exchange tubes include first tube sections that are arranged opposite to each other in the length direction of the first tube. A side wall and a second side wall, the distance between the first side wall of at least one of the second heat exchange tube and the first end surface of the first tube is smaller than the distance between the first side wall and the first side wall of the second heat exchange tube The distance between the first side walls of the first spacer.

According to the heat exchanger of at least one embodiment of the present application, the first heat exchange tube and the tube body are formed by one-step molding and processing by arranging at least part of the tube body between the first tube and the second tube. The second heat exchange tube of the first heat exchange tube, and the first tube includes a first tube section and a second part separated by a first spacer, wherein the first tube section of the first tube includes the first tube section of the first tube. At the end surface, at least one second heat exchange tube is connected to the first tube section of the first tube, and the distance between the first side wall of at least one second heat exchange tube and the first end surface of the first tube is smaller than that of the second heat exchange tube. The distance between the first side wall of the heat pipe and the first side wall of the first spacer. Compared with the heat exchanger in which the heat exchange tubes in the prior art are all folded and formed by sheet metal, the welding quality of the heat exchanger can be improved.

In some embodiments, the ratio of the distance from the first side wall of the second heat exchange tube to the first end surface of the first tube to the length of the first tube is less than or equal to 1:2.

In some embodiments, the channel of the heat exchange tube has a cross section, and the sum of the cross-sectional area of the channel of the first heat exchange tube is larger or smaller than the sum of the cross-sectional area of the channel of the second heat exchange tube .

In some embodiments, the second tube section of the first tube includes a second end surface of the first tube, the second tube section of the first tube includes an opening, and the second heat exchange tube includes a plurality of at least A second heat exchange tube is connected to the first tube section of the first tube, and the distance between the first side wall of the at least one second heat exchange tube and the first end surface of the first tube is smaller than the second The distance between the first side wall of the heat exchange tube and the first side wall of the first spacer, at least another second heat exchange tube is connected to the second pipe section of the first tube, and the at least another The distance between the second side wall of the second heat exchange tube and the second end surface of the first tube is smaller than the distance between the second side wall of the second heat exchange tube and the second side wall of the first spacer distance.

In some embodiments, the second tube includes a first tube section and a second tube section, and the first tube section of the second tube is spaced from the first tube section of the first tube in the length direction of the first tube. Provided that the first pipe section and the second pipe section of the second tube are spaced apart in the length direction of the second tube by a second spacer, and the second spacer is included in the length direction of the first tube The first side wall and the second side wall are opposed to each other. The second tube includes a first end surface and a second end surface. The first tube section of the second tube includes the first end surface of the second tube. The first tube section of the tube includes an opening, the second heat exchange tube is multiple, at least one second heat exchange tube is connected to the first tube section of the first tube, and the first tube section of the at least one second heat exchange tube The distance between the side wall and the first end surface of the first tube is smaller than the distance between the first side wall of the second heat exchange tube and the first side wall of the first spacer, and at least another second side wall The heat exchange tube is connected to the first tube section of the second tube, and the distance between the second side wall of at least another second heat exchange tube and the second end surface of the second tube is smaller than that of the second tube. The distance between the second side wall of the heat pipe and the second side wall of the second spacer.

In some embodiments, the channel of the second heat exchange tube has a cross section, and the sum of the cross-sectional area of the channel of at least one of the second heat exchange tubes is larger or smaller than that of at least another of the second heat exchange tubes. The sum of the cross-sectional area of the channel.

In some embodiments, the heat exchanger further includes a solid plate, one end of the solid plate is connected to the first pipe section of the first tube, and the other end of the solid plate is connected to the second tube section. Connected to the tube, the solid plate and the first heat exchange tube are spaced apart in the length direction of the first tube, and the solid plate includes a first side wall disposed opposite to each other in the length direction of the first tube And a second side wall, the distance between the first side wall of the solid plate and the first end surface of the first tube is smaller than the first side wall of the solid plate and the first side wall of the first spacer the distance between.

Description of the drawings

Fig. 1 is a schematic diagram of a heat exchange tube according to an embodiment of the present application.

Fig. 2 is a schematic diagram of a heat exchange tube according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 4 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 5 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 6 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 7 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 8 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 9 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 10 is a schematic diagram of the steps of the heat exchange tube according to another embodiment of the present application.

Fig. 11 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 12 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 13 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 14 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 15 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 16 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 17 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 18 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 19 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 20 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 21 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 22 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 23 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 24 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 25 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 26 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 27 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 28 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 29 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 30 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 31 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 32 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 33 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 34 is a schematic diagram of a heat exchange tube according to an embodiment of the present application.

Fig. 35 is a schematic diagram of a heat exchange tube according to an embodiment of the present application.

Fig. 36 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 37 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 38 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 39 is a schematic diagram of the steps of the heat exchange tube according to another embodiment of the present application.

Fig. 40 is a schematic diagram of a heat exchange tube according to another embodiment of the present application.

Fig. 41 is a schematic diagram of a heat exchanger according to an embodiment of the present application.

Fig. 42 is a front view of the heat exchanger in Fig. 41;

Fig. 43 is a schematic cross-sectional view at A-A in Fig. 42;

Fig. 44 is a schematic diagram of a heat exchanger according to another embodiment of the present application.

Fig. 45 is a front view of the heat exchanger in Fig. 44;

Fig. 46 is a schematic cross-sectional view at B-B in Fig. 45.

Fig. 47 is a schematic cross-sectional view at B-B in Fig. 45 according to still another embodiment of the present application.

Reference signs:

Heat exchange tube 1;

First section 100; first side wall 101; second side wall 102; third side wall 103; fourth side wall 104; first part 131; second part 132; third part 133; fourth part 134;

The second section 200; the first channel 201; the second connecting section 210; the second spacer section 220;

The third section 300; the second passage 301; the third connecting section 310; the third spacer section 320; the first straight section 330; the first bending section 340; the second bending section 350;

The fourth paragraph 400;

The first tube 2; the second tube 3; the first tube section 11; the second tube section 12; the first heat exchange tube 31; the second heat exchange tube 32; the fin 4; the first spacer 5 and the opening 6.

Detailed ways

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present application, but should not be construed as limiting the present application. In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply the device or element referred to. The clamp must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

Hereinafter, the heat exchange tube 1 according to the embodiment of the present application will be described with reference to the drawings.

As shown in FIGS. 1 to 26, the heat exchange tube 1 according to the embodiment of the present application includes a first side wall 101 and a second side wall 102 disposed opposite to each other in a first direction, and the heat exchange tube 1 further includes The third side wall 103 and the fourth side wall 104 (the first direction is shown by arrow A in the figure, and the second direction is shown by arrow B in the figure), the first side wall 101 and the fourth side wall are The distance between the two side walls 102 is smaller than the distance between the third side wall 103 and the fourth side wall 104. The heat exchange tube 1 has a plurality of circulation channels, and the plurality of circulation channels includes a first channel 201 and a second channel. Channel 301.

The multiple first channels 201 form a first channel layer along the second direction, and the multiple second channels 301 form a second channel layer along the second direction. The first channel layer is one or more and is arranged along the first direction. The second channel layers are multiple and arranged along a first direction, and the number of the second channel layers is greater than the number of the first channel layers.

The heat exchange tube 1 includes a first section 100, a second section 200, and a third section 300. The first section 100 is the tube wall, the second section 200 and the third section 300 are internal fins, and the second section 200 and the third section 300 is located inside the first section 100. The first section 100, the second section 200, and the third section 300 are all formed by bending a plate. The second section 200 includes a second connecting section 210 and a second spacer section 220. The second connecting section 210 has two sides, the adjacent second spacer section 220 is respectively connected to the two sides of the second connecting section 210, and the two adjacent first channels 201 include a gap separating the two first channels 201 The second interval section 220 and the third section 300 include a third connecting section 310 and a third interval section 320. The third connecting section 310 has two sides. The adjacent third interval sections 320 are connected to the third connecting section 310 respectively. The two sides are connected, and the two adjacent second channels 301 include a third spacer 320 that separates the two second channels 301. The heat exchange tube 1 is divided into two regions of equal width along the second direction, including the first In the first area and the second area, the first channel 201 is at least partially located in the first area, and the second channel 301 is at least partially located in the second area.

The heat exchange tube 1 has a cross section that intersects the thickness direction of the heat exchange tube 1 and the width direction of the heat exchange tube 1, in which the total area of the cross sections of the plurality of first channels 201 is larger than that of the plurality of second channels The total area of the cross section of 301, the cross section includes the flow section, the heat exchange tube 1 is divided into two regions of equal width along the second direction, including the first region and the second region. The total area is greater than the total area of the flow cross section in the second region.

Specifically, the heat exchange tube 1 may be a flat tube.

Those skilled in the art can understand that the “total area of the flow cross-section” refers to the total area of the cross-section of the channel through which fluid can flow in the corresponding region.

According to the heat exchange tube 1 of the embodiment of the present application, the second section 200 is used to separate a plurality of first channels 201 in the first section 100, and the third section 300 is used to separate a plurality of second channels in the first section 100. 301, and the total area of the circulation cross section in the first region is greater than the total area of the circulation cross section in the second region. The heat exchange tube 1 with non-uniform circulation channels can be constructed so that the cross-sectional area of one side of the circulation channel in the width direction of the heat exchange tube 1 is larger than the other side, so that one side of the heat exchange tube 1 exchanges more heat than the other side. For example, if the second section 200 is adjacent to the third side wall 103 and the third section 300 is adjacent to the fourth side wall 104, the part of the heat exchange tube 1 adjacent to the third side wall 103 can exchange heat more than the part adjacent to the fourth side wall 104. More fully, the volume distribution of each flow channel meets the needs of the heat exchange system.

Compared with the symmetrically arranged heat exchange tubes in the related art, the first channel 201 can be arranged adjacent to the air inlet of the heat exchanger, and the second channel 301 can be arranged adjacent to the air outlet of the heat exchanger, so that the airflow of the heat exchanger enters first. Passing the outside of the first passage 201 and then the outside of the second passage 301, the airflow can pass through the part with more heat exchange first, so that the temperature of the refrigerant in the heat exchange tube 1 is more uniform, and the formation of supercooling or overcooling can be avoided. The thermal temperature gradient and the volume distribution of each flow channel meet the requirements of the heat exchange system, and the heat exchange effect of the heat exchange tube 1 is improved.

In addition, a plurality of first channels 201 form a first channel layer along the second direction, and a plurality of second channels 301 form a second channel layer along the second direction. There are one or more first channel layers along the first channel layer. Arranged in one direction, the second channel layers are multiple and arranged along the first direction, and the number of the second channel layers is greater than the number of the first channel layers. It is convenient to form an asymmetric structure of the circulation channel in the heat exchange tube 1, and it is convenient to make the total area of the cross-sectional area of the first channel 201 larger than the total area of the cross-sectional area of the second channel 301. Compared with the technical solution in which the circulation channels are arranged in one layer, The cross-sectional area of the first channel 201 and the second channel 301 are more clearly distinguished, thereby further reducing the temperature difference in the heat exchange tube 1. The volume distribution of each flow channel meets the requirements of the heat exchange system, and further improves the heat exchange tube 1. Heat transfer effect.

In addition, since the first section 100, the second section 200, and the third section 300 are all formed by bending the sheet material, compared with the technical solution of using profiles to form the second section 200 and the third section 300, the heat exchange tube 1 can be reduced. Cost, simplify the manufacturing process of the heat exchange tube 1.

Therefore, according to the heat exchange tube 1 of the embodiment of the present application, the volume distribution of each flow channel of the heat exchange tube meets the requirements of the heat exchange system, and the heat exchange capacity of the heat exchanger using the heat exchange tube in the heat exchange system is improved.

In some embodiments of the present application, as shown in Figs. 1-33, the heat exchange tube 1 includes a first section 100, a second section 200, and a third section 300. The second section 200 and the third section 300 extend along the second section. The first channel 201 forms a first channel layer along the second direction, and the second channel 301 forms a second channel layer along the second direction. There are one or more first channel layers along the first channel layer. The second channel layers are arranged in multiple directions and arranged along the first direction. The number of the second channel layers is greater than the number of the first channel layers. The heat exchange tube 1 has a length along the heat exchange tube 1 The cross section where the thickness direction and the width direction of the heat exchange tube 1 intersect, in which the total area of the cross section of the plurality of first channels 201 is greater than the total area of the cross section of the plurality of second channels 301.

Specifically, as shown in FIGS. 1-33, each of the first channel layers is divided into two regions with equal width along the second direction, including a third region and a fourth region, and the third region and the second region Each of the four regions includes at least two first channels 201, and each of the second channel layers is divided into two regions of equal width along the second direction, including a fifth region and a sixth region. The fifth region and Each of the sixth regions includes at least two second channels 301, the heat exchange tube has a cross section that intersects the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, and the cross section includes a flow cross section. , The total area of the flow cross section in the third region is greater than the total area of the flow cross section in the fourth region and/or the total area of the flow cross section in the fifth region is greater than the total area of the flow cross section in the sixth region . In this way, the first channel 201 and the second channel 301 can respectively form two regions with equal width, which further facilitates the distinction of the heat exchange effects on both sides of the heat exchange tube 1, further ensures the uniformity of the temperature of the heat exchange tube 1, and further improves the heat exchange. The heat exchange effect of tube 1.

Optionally, as shown in FIG. 32, the heat exchange tube 1 has a cross section that intersects along the thickness direction of the heat exchange tube 1 and the width direction of the heat exchange tube 1, and the cross-sectional area of the first channel 201 in the cross section is along the first The two directions gradually decrease and/or the cross-sectional area of the second channel 301 gradually decreases along the second direction. Specifically, in the cross section, the cross-sectional area of the first channel 201 gradually decreases from the third side wall 103 to the fourth side wall 104 and/or the cross-sectional area of the second channel 301 changes from the third side wall 103 to the fourth side wall 104. The sidewall 104 gradually decreases. In this way, the heat exchange tube 1 with non-uniform circulation channels can be further formed, and the uniformity of the temperature of the heat exchange tube 1 can be further ensured.

More specifically, as shown in Figures 1 to 7, Figure 26 to Figure 33, the heat exchange tube 1 further includes a fourth section 400, which is connected to the first section 100 and extends along the first direction. The section 400 is located within the first section 100 and between the second section 200 and the third section 300 along the second direction. This can facilitate the separation of the first channel 201 and the second channel, and further ensure the uniformity of the temperature of the heat exchange tube 1.

Advantageously, as shown in FIGS. 1 to 33, the number of the first channel layer is one, and the number of the second channel layer is two. In this way, the difficulty of manufacturing the heat exchange tube 1 can be reduced while ensuring that the number of the second channel layers is greater than the number of the first channel layers.

In some embodiments of the present application, as shown in FIGS. 3, 5, and 7-26, the second section 200 and the third section 300 are formed by bending the same plate. In this way, the number of parts of the heat exchange tube 1 can be reduced, the cost of the heat exchange tube 1 can be reduced, and the assembly process of the heat exchange tube 1 can be simplified.

In some embodiments of the present application, as shown in FIGS. 8-26, the first section 100, the second section 200, and the third section 300 are formed by bending the same plate. In this way, the number of parts of the heat exchange tube 1 can be further reduced, the cost of the heat exchange tube 1 can be reduced, and the assembly process of the heat exchange tube 1 can be simplified.

Specifically, as shown in FIGS. 8-26, the third section 300 further includes a first straight section 330, and the plurality of third spacer sections 320 include third sections located on both sides of the first straight section 330 in the first direction. The first group of spacer segments and the second group of third spacer segments, the plurality of third connecting segments 310 include the first group of third connecting segments located on both sides of the first straight segment 330 in the first direction and the second group of third connecting segments Two groups, the first group of the third spacer section and the first group of the third connecting section constitute the first bending section 340, and the second group of the third spacer section and the second group of the third connecting section constitute The second bending section 350, the first section 100, the first bending section 340 and the first straight section 330 define a second channel layer, the first section 100, the second bending section 350 and the first straight section 330 defines another second channel layer. This can facilitate the construction of two second channel layers, and further facilitate ensuring that the total cross-sectional area of the first channel 201 is greater than the total cross-sectional area of the second channel 301.

In some embodiments of the present application, as shown in FIGS. 8-14, the first section 100 includes at least a first part 131, a second part 132, and a third part 133, and the first part 131 and the second part 132 are along the second direction. Are arranged and constitute the first side wall 101, the third portion 133 constitutes the second side wall 102, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to the first side wall. A side wall 101, and the second bending section 350 is adjacent to the second side wall 102. In this way, the bending and forming of the heat exchange tube 1 can be facilitated, and it is convenient to form a non-uniform heat exchange tube 1.

In some other embodiments of the present application, as shown in Figs. 23-26, the first section 100 includes at least a first part 131, a second part 132, and a third part 133. The second part 132 and the third part 133 are along the first part 131, the second part 132, and the third part 133. The second side wall 102 is arranged in two directions, the first part 131 constitutes the first side wall 101, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to The first side wall 101 and the second bending section 350 are adjacent to the second side wall 102. In this way, the bending and forming of the heat exchange tube 1 can also be facilitated, and it is convenient to form a non-uniform heat exchange tube 1.

In some embodiments of the present application, as shown in FIGS. 15-22, the first section 100 at least includes a first part 131, a second part 132, a third part 133, and a fourth part 134, the first part 131 and the second part 132 are arranged along the second direction and constitute the first side wall 101, the third portion 133 and the fourth portion 134 are arranged along the second direction and constitute the second side wall 102, and the first portion 131 and the third portion 133 are adjacent to the third side wall 103 , The second portion 132 and the fourth portion 134 are adjacent to the fourth side wall 104, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to the first side wall 101. The second bending section 350 is adjacent to the second side wall 102. In this way, the bending and forming of the heat exchange tube 1 can also be facilitated, and it is convenient to form a non-uniform heat exchange tube 1.

Hereinafter, the heat exchange tube 1 according to other embodiments of the present application will be described with reference to FIGS. 27-33.

As shown in FIGS. 27-33, the heat exchange tube 1 according to the embodiment of the present application includes a first side wall 101 and a second side wall 102 disposed opposite to each other in a first direction, and the heat exchange tube 1 further includes The third side wall 103 and the fourth side wall 104 are arranged, and the distance between the first side wall 101 and the second side wall 102 is smaller than the distance between the third side wall 103 and the fourth side wall 104, and the heat exchange tube 1 There are a plurality of circulation channels inside, and the plurality of circulation channels includes a first channel 201 and a second channel 301.

The plurality of first channels 201 form a first channel layer along the second direction, the first channel layers are one or more and are arranged along the first direction, and the plurality of second channels 301 form a second channel column along the first direction. At least one of the plurality of second channel rows includes at least two second channels 301 along the second direction, and the number of layers of the first channel layer is smaller than the number of second channels 301 arranged along the second direction. number.

The heat exchange tube 1 includes a first section 100, a second section 200, and a third section 300. The second section 200 and the third section 300 are arranged along the second direction. The first section 100 is formed by bending a sheet, and the second section 200 At least one of the third section and the third section 300 is made of a profile, the first section 100 is a tube wall, the second section 200 and the third section 300 are internal fins, and the second section 200 and the third section 300 are located inside the first section 100 .

The second section 200 includes a second connecting section 210 and a second spacer section 220. The second connecting section 210 has two side edges, and the adjacent second spacer sections 220 are respectively connected to the two side edges of the second connecting section 210, Two adjacent first channels 201 include a second spacer section 220 separating the two first channels 201.

The heat exchange tube 1 is divided into two regions with equal width along the second direction, including a first region and a second region. The first channel 201 is at least partially located in the first region, and the second channel 301 is at least partially located in the second region.

According to the heat exchange tube 1 of the embodiment of the present application, by using profiles to form at least one of the second section 200 and the third section 300, the forming of the second section 200 and the third section 300 can be facilitated, and the flow of different shapes can be constructed easily. Channel to improve the flexibility of the heat exchange tube 1.

The heat exchange tubes 1 according to specific embodiments of the present application will be described one by one with reference to the accompanying drawings.

In a specific embodiment of the present application, as shown in FIGS. 1 and 2, the first section 100, the second section 200, and the third section 300 are respectively formed by bending different plates, and the third section 300 includes a plurality of The first overlapping portion, the plurality of second overlapping portions, and the connecting portion, the plurality of first overlapping portions and the plurality of second overlapping portions are alternately arranged in the second direction, and in the first direction, the first The overlapping portion is adjacent to the first side wall 101, the second overlapping portion is adjacent to the second side wall 102, and the adjacent first overlapping portion and the second overlapping portion are connected by a connecting portion.

In an embodiment of the present application, as shown in FIG. 3, on the basis of the embodiment shown in FIGS. 1 and 2, the second section 200 and the third section 300 are formed by bending the same plate.

In an embodiment of the present application, as shown in FIG. 4, the first section 100, the second section 200, and the third section 300 are respectively formed by bending different plates, and the third section 300 includes a plurality of third connections. The first wave section and the second wave section formed by the section 310 and the third spacer section 320, in the first direction, the first wave section is adjacent to the first side wall, the second wave section is adjacent to the second side wall, and the first wave section The second wave segment is formed by bending the same plate.

In an embodiment of the present application, as shown in FIG. 5, on the basis of the embodiment shown in FIG. 4, the second section 200 and the third section 300 are formed by bending the same plate.

In an embodiment of the present application, as shown in FIG. 6, the first section 100, the second section 200, and the third section 300 are respectively formed by bending different plates, and the third section 300 includes a plurality of first rectangular portions And a plurality of second rectangular portions, in the first direction, the first rectangular portion is adjacent to the first side wall 101, the second rectangular portion is adjacent to the second side wall 102, and in the second direction, the plurality of first rectangular portions and the plurality of The second rectangular parts are alternately arranged.

In an embodiment of the present application, as shown in FIG. 7, on the basis of the embodiment shown in FIG. 6, the second section 200 and the third section 300 are formed by bending the same plate.

Figures 8-14 show some embodiments of the present application. In these embodiments, the first section 100 includes at least a first part 131, a second part 132, and a third part 133. The first side wall 101 is arranged in two directions, the third part 133 constitutes the second side wall 102, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 Adjacent to the first side wall 101, the second bending section 350 is adjacent to the second side wall 102.

In an embodiment of the present application, as shown in FIGS. 8-10, the second section 200, the second bending section 350, the first straight section 330, the first section 131, the third section 133, and the second section 132 It is connected to the first bending section 340 in sequence. Specifically, a side of the second section 200 adjacent to the fourth side wall 104 is connected to a side of the second bending section 350 adjacent to the third side wall 103, and a side of the second bending section 350 adjacent to the fourth side wall 104 It is connected to the side of the first straight section 330 adjacent to the fourth side wall 104, and the side of the first straight section 330 adjacent to the third side wall 103 is connected to the side of the first portion 131 adjacent to the fourth side wall 104. The side of 131 adjacent to the third side wall 103 is connected to the side of the third portion 133 adjacent to the third side wall 103, the side of the third portion 133 adjacent to the fourth side wall 104 and the second portion 132 adjacent to the fourth side wall 104 The side of the second part 132 is connected to the side of the third side wall 103 and the side of the first bending section 340 is connected to the side of the third side wall 103.

In an embodiment of the present application, as shown in FIG. 11, the second section 200, the second bending section 350, the third section 133, the first section 131, the first straight section 330, the second section 132 and the first section The bending sections 340 are connected in sequence. Specifically, a side of the second section 200 adjacent to the fourth side wall 104 is connected to a side of the second bending section 350 adjacent to the third side wall 103, and a side of the second bending section 350 adjacent to the fourth side wall 104 It is connected to the side of the third part 133 adjacent to the fourth side wall 104, the side of the third part 133 adjacent to the third side wall 103 is connected to the side of the first part 131 adjacent to the third side wall 103, and the first part 131 is adjacent to the fourth side wall. One side of the side wall 104 is connected to a side of the first straight section 330 adjacent to the third side wall 103, a side of the first straight section 330 adjacent to the fourth side wall 104 and the second portion 132 adjacent to the fourth side wall 104 The side of the second part 132 is connected to the side of the third side wall 103 and the side of the first bending section 340 is connected to the side of the third side wall 103.

In an embodiment of the present application, as shown in FIG. 12, the third section 133, the second bending section 350, the second section 200, the first section 131, the first straight section 330, the second section 132 and the first section The bending sections 340 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth side wall 104 is connected to a side of the second bending section 350 adjacent to the fourth side wall 104, and a side of the second bending section 350 adjacent to the third side wall 103 It is connected to the side of the second section 200 adjacent to the fourth side wall 104, the side of the second section 200 adjacent to the third side wall 103 is connected to the side of the first part 131 adjacent to the third side wall 103, and the first part 131 is adjacent to the fourth side wall. One side of the side wall 104 is connected to a side of the first straight section 330 adjacent to the third side wall 103, a side of the first straight section 330 adjacent to the fourth side wall 104 and the second portion 132 adjacent to the fourth side wall 104 The side of the second part 132 is connected to the side of the third side wall 103 and the side of the first bending section 340 is connected to the side of the third side wall 103.

In an embodiment of the present application, as shown in FIG. 13, the second section 200, the second bending section 350, the third section 133, the first section 131, the first straight section 330, the first bending section 340 and The second part 132 is connected in sequence. Specifically, a side of the second section 200 adjacent to the fourth side wall 104 is connected to a side of the second bending section 350 adjacent to the third side wall 103, and a side of the second bending section 350 adjacent to the fourth side wall 104 It is connected to the side of the third part 133 adjacent to the fourth side wall 104, the side of the third part 133 adjacent to the third side wall 103 is connected to the side of the first part 131 adjacent to the third side wall 103, and the first part 131 is adjacent to the fourth side wall. One side of the side wall 104 is connected to the side of the first straight section 330 adjacent to the third side wall 103, the side of the first straight section 330 adjacent to the fourth side wall 104 and the first bent section 340 adjacent to the fourth side One side of the wall 104 is connected, and the side of the first bending section 340 adjacent to the third side wall 103 is connected to the side of the second portion 132 adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 14, the third section 133, the second bending section 350, the second section 200, the first section 131, the first straight section 330, the first bending section 340 and The second part 132 is connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth side wall 104 is connected to a side of the second bending section 350 adjacent to the fourth side wall 104, and a side of the second bending section 350 adjacent to the third side wall 103 It is connected to the side of the second section 200 adjacent to the fourth side wall 104, the side of the second section 200 adjacent to the third side wall 103 is connected to the side of the first part 131 adjacent to the third side wall 103, and the first part 131 is adjacent to the fourth side wall. One side of the side wall 104 is connected to the side of the first straight section 330 adjacent to the third side wall 103, the side of the first straight section 330 adjacent to the fourth side wall 104 and the first bent section 340 adjacent to the fourth side One side of the wall 104 is connected, and the side of the first bending section 340 adjacent to the third side wall 103 is connected to the side of the second portion 132 adjacent to the third side wall 103.

Figures 15-22 show some embodiments of the present application. In these embodiments, the first section 100 includes at least a first part 131, a second part 132, a third part 133, and a fourth part 134. The two parts 132 are arranged along the second direction and form the first side wall 101, the third part 133 and the fourth part 134 are arranged along the second direction and form the second side wall 102, and the first part 131 and the third part 133 are adjacent to the third side The wall 103, the second portion 132 and the fourth portion 134 are adjacent to the fourth side wall 104, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to the first On the side wall 101, the second bending section 350 is adjacent to the second side wall 102.

In an embodiment of the present application, as shown in FIG. 15, the second section 200, the third section 133, the first section 131, the first straight section 330, the second bending section 350, the fourth section 134, and the second section The part 132 and the first bending section 340 are connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the side of the third portion 133 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the first straight section 330 adjacent to the third side wall 103, and the first straight section 330 is adjacent to the fourth side wall. One side of the side wall 104 is connected to the side of the second bending section 350 adjacent to the fourth side wall 104, and the side of the second bending section 350 adjacent to the third side wall 103 and the fourth portion 134 adjacent to the third side wall 103 The side of the fourth portion 134 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the first side The bending section 340 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 16, the third section 133, the second section 200, the first section 131, the first straight section 330, the second bending section 350, the fourth section 134, and the second section The part 132 and the first bending section 340 are connected in sequence. Specifically, the side of the third section 133 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the first straight section 330 adjacent to the third side wall 103, and the first straight section 330 is adjacent to the fourth side wall. One side of the side wall 104 is connected to the side of the second bending section 350 adjacent to the fourth side wall 104, and the side of the second bending section 350 adjacent to the third side wall 103 and the fourth portion 134 adjacent to the third side wall 103 The side of the fourth portion 134 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the first side The bending section 340 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 17, the second section 200, the third section 133, the first section 131, the fourth section 134, the second bending section 350, the first straight section 330, and the second section The part 132 and the first bending section 340 are connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the side of the third portion 133 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second bending section 350 adjacent to the fourth side wall 104, the second bending section 350 is adjacent to one side of the third side wall 103 and the first straight section 330 is adjacent to one side of the third side wall 103 The side of the first straight section 330 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the first side The bending section 340 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 18, the third section 133, the second section 200, the first section 131, the fourth section 134, the second bending section 350, the first straight section 330, and the second section The part 132 and the first bending section 340 are connected in sequence. Specifically, the side of the third section 133 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second bending section 350 adjacent to the fourth side wall 104, the second bending section 350 is adjacent to one side of the third side wall 103 and the first straight section 330 is adjacent to one side of the third side wall 103 The side of the first straight section 330 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the first side The bending section 340 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 19, the second section 200, the third section 133, the first section 131, the fourth section 134, the second section 132, the first bending section 340, the first straight section The section 330 and the second bending section 350 are connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the side of the third portion 133 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the side of the first bending section 340 adjacent to the third side wall 103. A side of a bent section adjacent to the fourth side wall 104 is connected to a side of the first straight section 330 adjacent to the fourth side wall 104, and a side of the first straight section 330 adjacent to the third side wall 103 is connected to the second fold. The curved section 350 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 20, the third section 133, the second section 200, the first section 131, the fourth section 134, the second section 132, the first bending section 340, the first straight section The section 330 and the second bending section 350 are connected in sequence. Specifically, the side of the third section 133 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the side of the first bending section 340 adjacent to the third side wall 103. A side of a bent section adjacent to the fourth side wall 104 is connected to a side of the first straight section 330 adjacent to the fourth side wall 104, and a side of the first straight section 330 adjacent to the third side wall 103 is connected to the second fold. The curved section 350 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 21, the second section 200, the third section 133, the first section 131, the fourth section 134, the second section 132, the second bending section 350, the first straight section The section 330 and the first bending section 340 are connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the side of the third portion 133 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the side of the second bending section 350 adjacent to the third side wall 103. The side of the second bending section 350 adjacent to the fourth side wall 104 is connected to the side of the first straight section 330 adjacent to the fourth side wall 104, and the side of the first straight section 330 adjacent to the third side wall 103 is connected to the first straight section 330. The bending section 340 is connected to one side adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 22, the third section 133, the second section 200, the first section 131, the fourth section 134, the second section 132, the second bending section 350, the first straight section The section 330 and the first bending section 340 are connected in sequence. Specifically, the side of the third section 133 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the fourth portion 134 adjacent to the third side wall 103, and the fourth portion 134 is adjacent to the fourth side wall 104. One side is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second portion 132 adjacent to the third side wall 103 is connected to the side of the second bending section 350 adjacent to the third side wall 103. The side of the second bending section 350 adjacent to the fourth side wall 104 is connected to the side of the first straight section 330 adjacent to the fourth side wall 104, and the side of the first straight section 330 adjacent to the third side wall 103 is connected to the first straight section 330. The bending section 340 is connected to one side adjacent to the third side wall 103.

Figures 23-26 show some embodiments of the present application. In these embodiments, the first section 100 at least includes a first part 131, a second part 132, and a third part 133. The second side is arranged in the second direction and constitutes the second side wall 102, the first portion 131 constitutes the first side wall 101, the second section 200 is adjacent to the third side wall 103, the third section 300 is adjacent to the fourth side wall 104, and the first bending section 340 Adjacent to the first side wall 101, the second bending section 350 is adjacent to the second side wall 102.

In an embodiment of the present application, as shown in FIG. 23, the second section 200, the second section 132, the first section 131, the third section 133, the first bending section 340, the first straight section 330, and the second section The bending sections 350 are connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second section 132 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the third portion 133 is adjacent to the third side wall 103. One side is connected to the side of the first bending section 340 adjacent to the third side wall 103, the first bending section 340 is adjacent to one side of the fourth side wall 104 and the first straight section 330 is adjacent to one side of the fourth side wall 104 The sides are connected to each other, and the side of the first straight section 330 adjacent to the third side wall 103 is connected to the side of the second bent section 350 adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 24, the second section 200, the second section 132, the first section 131, the first bending section 340, the first straight section 330, the second bending section 350, The third part 133 is connected in sequence. Specifically, the side of the second section 200 adjacent to the fourth side wall 104 is connected to the side of the second portion 132 adjacent to the fourth side wall 104, and the side of the second section 132 adjacent to the third side wall 103 is connected to the first portion 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the first bending section 340 adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to the third side wall. One side of the side wall 103 is connected to a side of the first straight section 330 adjacent to the third side wall 103, a side of the first straight section 330 adjacent to the fourth side wall 104 and a second bent section 350 adjacent to the fourth side One side of the wall 104 is connected, and the side of the second bending section 350 adjacent to the third side wall 103 is connected to the side of the third portion 133 adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 25, the second section 132, the second section 200, the first section 131, the first bending section 340, the first straight section 330, the second bending section 350, The third part 133 is connected in sequence. Specifically, the side of the second section 132 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the first bending section 340 adjacent to the fourth side wall 104, and the first bending section 340 is adjacent to the third side wall. One side of the side wall 103 is connected to a side of the first straight section 330 adjacent to the third side wall 103, a side of the first straight section 330 adjacent to the fourth side wall 104 and a second bent section 350 adjacent to the fourth side One side of the wall 104 is connected, and the side of the second bending section 350 adjacent to the third side wall 103 is connected to the side of the third portion 133 adjacent to the third side wall 103.

In an embodiment of the present application, as shown in FIG. 26, the second part 132, the second section 200, the first part 131, the third part 133, the first bending section 340, the first straight section 330, and the second The bending sections 350 are connected in sequence. Specifically, the side of the second section 132 adjacent to the fourth side wall 104 is connected to the side of the second section 200 adjacent to the fourth side wall 104, and the side of the second section 200 adjacent to the third side wall 103 is connected to the first section 131. The side adjacent to the third side wall 103 is connected, the side of the first portion 131 adjacent to the fourth side wall 104 is connected to the side of the third portion 133 adjacent to the fourth side wall 104, and the third portion 133 is adjacent to the third side wall 103. One side is connected to the side of the first bending section 340 adjacent to the third side wall 103, the first bending section 340 is adjacent to one side of the fourth side wall 104 and the first straight section 330 is adjacent to one side of the fourth side wall 104 The sides are connected to each other, and the side of the first straight section 330 adjacent to the third side wall 103 is connected to the side of the second bent section 350 adjacent to the third side wall 103.

Figures 27-33 show some embodiments of the present application. In these embodiments, the third section 300 is made of profiles.

In an embodiment of the present application, as shown in FIG. 27, the third section 300 includes a plurality of first plates oriented along the first direction and spaced apart along the second direction and second plates oriented along the second direction. The second board is located in the middle of the first board in the first direction.

In an embodiment of the present application, as shown in Fig. 28, on the basis of the embodiment shown in Fig. 27, both ends of the first plate in the first direction are provided with ribs extending in the second direction.

In an embodiment of the present application, as shown in FIG. 29, based on the embodiment shown in FIG. 27, the width of the second section 200 in the second direction is smaller than the width of the third section 300.

In an embodiment of the present application, as shown in FIG. 30, the third section 300 includes a plurality of circular parts arranged at intervals along the second direction and a plurality of connecting parts, and two adjacent circular parts are connected by the connecting parts.

In an embodiment of the present application, as shown in FIG. 31, the third section 300 includes a partition portion, a first trapezoidal portion, and a second trapezoidal portion. The partition portion is oriented in the second direction, and the first trapezoid The part and the second trapezoidal part correspond one-to-one in the first direction and are respectively located on both sides of the partition part.

In an embodiment of the present application, as shown in FIG. 32, on the basis of the embodiment shown in FIG. 27, the distance between two adjacent first plates ranges from one side close to the third side wall 103 to close to One side of the fourth side wall 104 gradually decreases.

In an embodiment of the present application, as shown in FIG. 33, the third section 300 includes a first plate, a second plate, and a third plate. The third plate is oriented along the second direction, and the first plate and the second plate are oriented along the second direction. The two boards are oriented along the first direction and are respectively located on both sides of the third board in the first direction, and the first board and the second board are alternately arranged in the second direction.

Those skilled in the art can understand that, in the above-mentioned embodiments, “connected” may refer to a direct connection, or the two may be indirectly connected according to the actual needs of those skilled in the art.

The heat exchanger according to the embodiment of the present application is described below. The heat exchanger according to the embodiment of the present application includes a first tube 2, a second tube 3, a plurality of heat exchange tubes, and a plurality of fins.

The first tube 2 and the second tube 3 are arranged substantially in parallel. A plurality of the heat exchange tubes are arranged in parallel, one end of the heat exchange tube is connected to the first tube 2 along its length direction, and the other end of the heat exchange tube is connected to the second tube 3 along its length direction , The width direction of the heat exchange tube is substantially perpendicular to the length direction of the first tube 2, and the heat exchange tube is the heat exchange tube 1 according to the above-mentioned embodiment of the present application. In the direction from the inlet side to the outlet side of the air flow, the second section 200 is closer to the inlet side of the air flow of the heat exchanger than the third section 300 is. A plurality of the fins are connected with the heat exchange tube.

In this way, the first channel 201 can be closer to the inlet side of the air flow than the second channel 301, thereby improving the uniformity of the temperature in the heat exchange tube 1 and ensuring the heat exchange effect of the heat exchanger.

The heat exchanger according to the embodiment of the present application, by using the heat exchange tube 1 according to the above-mentioned embodiment of the present application, has the advantages of good heat exchange effect and the like.

As shown in FIGS. 34-40, the heat exchange tube 1 according to the embodiment of the present application has multiple circulation channels. The heat exchange tube 1 includes a tube wall and fins.

The tube wall includes a first section 100. The first section 100 includes a first side wall 101 and a second side wall 102 spaced apart along the first direction, and a third side wall 103 and a fourth side spaced apart along the second direction. For the wall 104, the distance between the first side wall 101 and the second side wall 102 is smaller than the distance between the third side wall 103 and the fourth side wall 104.

The heat sink includes a second section 200 and a third section 300, the second section 200 and the third section 300 are arranged along the second direction, the heat exchange tube 1 further includes a fourth section 400, and the fourth section 400 also includes a first side The first side of the fourth section 400 is connected to the first side wall 101, the second side of the fourth section 400 is connected to the second side wall, and the fourth section 400 generally extends along the first direction. , The fourth section 400 is separated from the second section 200 and the third section 300 in the second direction.

The second section 200 includes a plurality of second connecting sections 210 and a plurality of second spacing sections 220. The second spacing section 220 includes first and second side edges that are arranged at intervals, and second connections that are adjacent in the second direction The segment 210 is respectively connected to the first side and the second side of the second spacer 220, the first side of the second spacer 220 is connected to the first side wall 101, and the second side of the second spacer 220 is connected to The second side wall 102 is connected, a plurality of second connecting sections 210 are respectively connected to the first side wall 101 or the second side wall 102, the plurality of third sections 300 include a third connecting section 310 and a plurality of third spacer sections 320, The third spacer section 320 includes the first side of the third spacer section and the second side of the third spacer section which are arranged at intervals. The third connecting section 310 adjacent in the second direction is respectively connected to the first side of the third spacer section 320. The side is connected with the second side, the first side of the third spacer 320 is connected with the first side wall 101, the second side of the third spacer 320 is connected with the second side wall 102, and a plurality of third connecting sections 310 is connected to the first side wall 101 or the second side wall 102 respectively.

The first section 100, the second section 200, the third section 300, and the fourth section 400 are all formed by bending a sheet.

The heat exchange tube 1 has a cross section in the length direction of the heat exchange tube 1, and the cross section includes a flow section. The heat exchange tube 1 is divided into two regions of equal length along the second direction, including a first region and a second region. The total area of the flow cross section in the first region is greater than the total area of the flow cross section in the second region.

Specifically, the heat exchange tube 1 may be a flat tube.

Those skilled in the art can understand that the “total area of the flow cross-section” refers to the total area of the cross-section of the channel through which fluid can flow in the corresponding region. The "first direction" is shown by arrow A in the figure, and the "second direction" is shown by arrow B in the figure.

According to the heat exchange tube 1 of the embodiment of the present application, the total area of the flow cross section in the first region is made larger than the total area of the flow cross section in the second region. The heat exchange tube 1 with non-uniform circulation channels can be constructed so that the cross-sectional area of one side of the circulation channel in the width direction of the heat exchange tube 1 is larger than the other side, so that one side of the heat exchange tube 1 exchanges more heat than the other side. For example, if the second section 200 is adjacent to the third side wall 103 and the third section 300 is adjacent to the fourth side wall 104, the part of the heat exchange tube 1 adjacent to the third side wall 103 can exchange heat more than the part adjacent to the fourth side wall 104. More fully, the volume distribution of each flow channel meets the needs of the heat exchange system.

Compared with the symmetrically arranged heat exchange tubes in the related art, the first zone can be arranged adjacent to the air inlet of the heat exchanger, and the second zone can be arranged adjacent to the air outlet of the heat exchanger, so that the airflow from the heat exchanger first passes through the first zone after entering. The outside of one area, and then the outside of the second area, can make the air flow pass through the part with more heat exchange first, make the temperature of the refrigerant in the heat exchange tube 1 more uniform, and avoid the formation of supercooling or superheating temperature gradients. The volume distribution of each flow channel meets the requirements of the heat exchange system, and the heat exchange effect of the heat exchange tube 1 is improved.

Hereinafter, the heat exchange tube 1 according to the specific embodiment of the present application will be described with reference to the drawings.

In some embodiments of the present application, as shown in FIGS. 34-40, the heat exchange tube 1 has a cross section that intersects the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, and the cross section includes a flow cross section, The heat exchange tube 1 is divided into two regions with equal widths along the second direction, including a first region and a second region, and the total area of the flow cross section in the first region is greater than the total area of the flow cross section in the second region.

In an embodiment of the present application, as shown in FIG. 36, the second section 200 and the third section 300 are formed by bending the same plate. In this way, the number of parts of the heat exchange tube 1 can be reduced, the cost of the heat exchange tube 1 can be reduced, and the assembly process of the heat exchange tube 1 can be simplified.

In some embodiments of the present application, as shown in FIGS. 37-40, the thickness of the sheet of the second section 200 is greater than or equal to the thickness of the sheet of the third section 300. This can facilitate the formation of an asymmetrical structure of the flow passage in the heat exchange tube 1, and the total area of the flow cross section in the first region is greater than the total area of the flow cross section in the second region, thereby further reducing the flow in the heat exchange tube 1. The temperature difference further improves the heat exchange effect of the heat exchange tube 1.

In some embodiments of the present application, the second section 200 and the first section 100 are formed by bending the same plate. In this way, the number of parts of the heat exchange tube 1 can be reduced, the cost of the heat exchange tube 1 can be reduced, and the assembly process of the heat exchange tube 1 can be simplified.

Advantageously, as shown in FIGS. 38-40, in the second direction, the circulation channel includes a first channel layer and a second channel layer located on both sides of the fourth section 400, and the first channel layer includes multiple channels. A first channel 201, the second channel layer includes a plurality of second channels 301, and each of the first channel layers is divided into two regions of equal length along the second direction, including a third region and a fourth region, so Each of the third area and the fourth area includes at least two first channels 201, and each of the second channel layers is divided into two areas of equal length along the second direction, including a fifth area and a sixth area. Area, each of the fifth area and the sixth area includes at least two second channels 301, the heat exchange tube 1 has a cross section in the length direction of the heat exchange tube 1, in which cross section, the The total area of the cross section of the first channel 201 in the third region is greater than the total area of the cross section of the first channel 201 in the fourth region and/or the total area of the cross section of the second channel 301 in the fifth region It is larger than the total area of the cross section of the second passage 301 in the sixth region. In this way, the first channel 201 and the second channel 301 can respectively form two regions with equal width, which further facilitates the distinction of the heat exchange effects on both sides of the heat exchange tube 1, further ensures the uniformity of the temperature of the heat exchange tube 1, and further improves the heat exchange. The heat exchange effect of tube 1.

Optionally, as shown in FIGS. 38-40, the heat exchange tube 1 has a cross-section in the length direction of the heat exchange tube 1, in which the cross-sectional area of the first channel 201 gradually decreases in the second direction and/ Or the cross-sectional area of the second channel 301 gradually decreases along the second direction.

The third section 300 includes a plurality of third spacer sections, and the thickness of the sheet material of the plurality of third spacer sections gradually decreases from a side adjacent to the second section to a side away from the second section. In this way, the heat exchange tube 1 with non-uniform circulation channels can be further formed, and the uniformity of the temperature of the heat exchange tube 1 can be further ensured.

In some embodiments of the present application, as shown in FIGS. 38-40, the length of the second section 200 in the second direction is smaller than the length of the third section 300. In this way, the total area of the first channel 201 can be further reduced, and the total area of the second channel 301 can be increased, thereby further facilitating the formation of the heat exchange tube 1 with non-uniform circulation channels, and further ensuring the uniformity of the temperature of the heat exchange tube 1.

Specifically, as shown in Figures 34-40, the heat exchange tube 1 has a cross-section in the length direction of the heat exchange tube 1, and the total area of the flow cross-section in the first region is the total flow cross-section in the second region. 1.04-1.4 times the area. In this way, the structure of the heat exchange tube 1 can be made more reasonable, and the heat exchange effect of the heat exchange tube 1 can be ensured.

The heat exchanger according to the embodiment of the present application is described below. The heat exchanger according to the embodiment of the present application includes a first tube 2, a second tube 3, a plurality of heat exchange tubes and fins.

In this way, the first area can be closer to the inlet side of the air flow than the second area, thereby improving the uniformity of the temperature in the heat exchange tube 1 and ensuring the heat exchange effect of the heat exchanger.

Hereinafter, a heat exchanger according to an embodiment of an aspect of the present application will be described with reference to FIGS. 41-43.

As shown in FIGS. 41-43, the heat exchanger according to the embodiment of the present application includes a first tube 2, a second tube 3, and a plurality of heat exchange tubes 1. The first tube 2 and the second tube 3 are arranged at intervals. As shown in FIG. 42, the first pipe 2 and the second pipe 3 are spaced apart in the up-down direction. Specifically, the first tube 2 and the second tube 3 are arranged in parallel. As shown in Fig. 41, both the first tube 2 and the second tube 3 extend substantially in the left and right direction, that is, the length direction of the first tube 2 and the length direction of the second tube 3 are both left and right directions.

A plurality of heat exchange tubes 1 are arranged at intervals along the length direction of the first tube 2. As shown in FIG. 42, a plurality of heat exchange tubes 1 are arranged at intervals in the left-right direction. Specifically, the plurality of heat exchange tubes 1 are arranged parallel to each other. As shown in FIG. 42, the length directions of the plurality of heat exchange tubes 1 are substantially the same, and the length direction of the heat exchange tubes 1 is the vertical direction.

One end of the heat exchange tube 1 is inserted into the first tube 2 to be connected to the first tube 2, and the other end of the heat exchange tube 1 is inserted into the second tube 3 to be connected to the second tube 3, and the heat exchange tube 1 includes The channel communicates with the first tube 2 and the second tube 3. As shown in Figure 42, the lower end of each heat exchange tube 1 is inserted into the first tube 2 to connect with the first tube 2, and the upper end of each heat exchange tube 1 is inserted into the second tube 3 to connect with the second tube 3. Thus, the first tube 2 and the second tube 3 are connected through the plurality of heat exchange tubes 1.

As shown in FIG. 43, the plurality of heat exchange tubes 1 includes a plurality of first heat exchange tubes 31 and at least one second heat exchange tube 32, wherein at least part of the tube body of the first heat exchange tube 31 is formed by folding a sheet. It is called a folded flat tube in the field; the tube body of the second heat exchange tube 32 is formed by one-time molding and is called an extruded flat tube in the field. The number of the second heat exchange tubes 32 is smaller than the number of the first heat exchange tubes 31, and the second heat exchange tubes 32 and the first heat exchange tubes 31 are spaced apart in the length direction of the first tube 2. As shown in Figure 43, the heat exchanger includes folded flat tubes and extruded flat tubes, and the number of extruded flat tubes is smaller than the number of folded flat tubes.

The first tube 2 includes at least two end surfaces, the second heat exchange tube 32 includes a first side surface and a second side surface disposed opposite to each other in the length direction of the first tube 2, and the first side surface of the second heat exchange tube 32 is opposite to the first side surface. The distance between one end surface of the tube 2 is smaller than the distance between the first side surface of the second heat exchange tube 32 and the other end surface of the first tube 2. As shown in Figures 42 and 43, there are two second heat exchange tubes 32. The second heat exchange tubes 32 include oppositely arranged left and right sides. The left side of one of the second heat exchange tubes 32 is connected to the The distance between the left end surface of the first tube 2 in the left and right direction is smaller than the distance between the left end surface of the second heat exchange tube 32 and the right end surface of the first tube 2 in the left and right direction, that is, the one second heat exchange tube 32 and The left side of the first tube 2 is connected; the left side of the other second heat exchange tube 32 and the right end of the first tube 2 in the left-right direction are less than the left side of the second heat exchange tube 32 and the first The distance of the left end surface of the tube 2 in the left-right direction, that is, the other second heat exchange tube 32 is connected to the left side of the first tube 2.

According to the heat exchanger of the embodiment of the present application, a first heat exchange tube 31 formed by folding and forming at least a part of the tube body from a sheet and a first tube body formed by a one-time forming process is provided between the first tube 2 and the second tube 3 Two heat exchange tubes 32, the number of first heat exchange tubes 31 is more than that of the second heat exchange tubes 32, and the distance between the first side surface of the second heat exchange tube 32 and one end surface of the first tube 2 is smaller than the second heat exchange tube The distance between the first side surface of the heat exchange tube 32 and the other end surface of the first tube 2. Compared with the heat exchanger in which the heat exchange tubes in the prior art are all folded and formed by sheet metal, the welding quality of the heat exchanger is improved.

In some embodiments, the ratio of the distance from the first side surface of the second heat exchange tube 32 to the aforementioned one end surface of the first tube 2 to the length of the first tube 2 is less than or equal to 1:5.

As shown in Figures 42 and 43, the left side of the second heat exchange tube 32 on the left side and the left end surface of the first tube 2 in the left-right direction account for 0 (without having )-20% (with), the left side of the other second heat exchange tube 32 on the right side and the right end surface of the first tube 2 in the left-right direction account for 0 (without having )-20% (with). Therefore, by controlling the position of the second heat exchange tube 32 within the above-mentioned range of the first tube 2, the welding quality of the heat exchanger can be better improved.

In some embodiments, at least two end faces of the first tube 2 include a first end face and a second end face, and there are at least two second heat exchange tubes 32, and the first side face of one second heat exchange tube 32 is connected to the first end face. The distance between the first end faces of the tubes 2 is smaller than the distance between the first side surface of the one second heat exchange tube 32 and the second end face of the first tube 2, and the one second heat exchange tube 32 is located in a plurality of heat exchange tubes. One of the outermost sides of the heat pipe 1 in the length direction of the first pipe; the distance between the first side surface of the other second heat exchange pipe 32 and the second end surface of the first pipe 2 is smaller than that of the other second heat exchange pipe The distance between the first side surface of 32 and the first end surface of the first tube 2, and the other second heat exchange tube 32 is located at the other outermost of the plurality of heat exchange tubes 1 in the length direction of the first tube 2 .

As shown in FIGS. 42 and 43, there are two second heat exchange tubes 32 and a plurality of first heat exchange tubes 31 among the plurality of heat exchange tubes 1, and one second heat exchange tube 32 is located in the plurality of heat exchange tubes 1 The other heat exchange tube 12 is located at the far right of the plurality of heat exchange tubes 1. In other words, the second heat exchange tubes 32 are provided on both sides of the heat exchanger. As a result, the second heat exchange tubes 32 are installed on both sides of the heat exchanger, so as not to cause internal erosion due to the high temperature in this area. Moreover, when the second heat exchange tubes 32 are installed on both sides of the heat exchanger, the number of the second heat exchange tubes 32 can be adjusted according to the welding process to solve the problem of internal ablation caused by the high temperature in this area.

In some embodiments, the heat exchanger further includes a solid plate (not shown), one end of the solid plate is connected to the first tube 2, the other end of the solid plate is connected to the second tube 3, and the solid plate is connected to the second tube 3. A heat exchange tube 31 is arranged at intervals in the length direction of the first tube 2, the solid plate and the second heat exchange tube 32 are arranged at intervals in the length direction of the first tube 2, and the solid plate is included in the length direction of the first tube 2. Opposite the first side and the second side, the distance between the first side of the solid plate and one end surface of the first tube 2 is smaller than the distance between the first side of the solid plate and the other end surface of the first tube 2 . For example, the length direction of the solid plate is consistent with the length direction of the heat exchange tube 1 and is up and down, the lower end of the solid plate is inserted into the first tube 2 to connect with the first tube 2, and the upper end of the solid plate is inserted into the second tube 3 To connect with the second tube 3. The solid plates are parallel to the first heat exchange tubes 31 in the left-right direction and are arranged at intervals, and/or are arranged in parallel to the second heat exchange tubes 32 in the left-right direction and are arranged at intervals.

In some embodiments, as shown in FIGS. 41 and 42, the heat exchanger further includes fins 4, and the fins 4 are provided between adjacent heat exchange tubes 1 in the length direction of the first tube 2. The arrangement of the fins 4 can increase the heat exchange area of the two adjacent heat exchange tubes 1 and improve the heat exchange efficiency of the heat exchanger. In addition, by arranging between the first tube 2 and the second tube 3 at least a part of the first heat exchange tube 31 whose tube body is folded and formed by sheet metal, and the second heat exchange tube 32 whose tube body is formed by one-time forming and processing, it is also possible to By reducing the fit gap caused by the height reduction of the first heat exchange tube 31 formed by folding the sheet, the welding quality of the first heat exchange tube 31 and the fin 4 is improved.

Specifically, the second heat exchange tubes 32 that are adjacent in the length direction of the first tube 2 are separated by the fins 4 and the first heat exchange tubes 31, and/or, are adjacent in the length direction of the first tube 2 The second heat exchange tubes 32 are only separated by fins 4.

In some embodiments, the heat exchange tube 1 includes a first side surface and a second side surface that are arranged oppositely and in parallel, and a third side surface and a fourth side surface that are arranged oppositely and in parallel. The distance therebetween is smaller than the distance between the third side surface and the fourth side surface of the heat exchange tube. In other words, the heat exchange tube 1 has a width and a thickness, and the heat exchange tube 1 includes a first side surface and a second side surface arranged in parallel in its thickness direction, wherein the distance between the first side surface and the second side surface is the heat exchange tube 1 thickness. The heat exchange tube 1 further includes a third side surface and a fourth side surface arranged in parallel in the width direction thereof, wherein the distance between the third side surface and the fourth side surface is the width of the heat exchange tube 1. In other words, the heat exchange tube 1 is a flat tube called in the art.

As shown in Figures 41-43, the first heat exchange tube 31 and the second heat exchange tube 32 both have a width and a thickness, and the width of each heat exchange tube 1 is greater than the thickness. The thickness direction of the first heat exchange tube 31 is consistent with the thickness direction of the second heat exchange tube 32 and is the left and right direction. The width direction of the first heat exchange tube 31 is consistent with the width of the second heat exchange tube 32 and is perpendicular to the left and right. Direction and up and down direction.

In some embodiments, the thickness of the second heat exchange tube 32 may be slightly larger than the thickness of the first heat exchange tube 31, which can further reduce the distortion of the heat exchanger and improve the quality of the heat exchanger. Specifically, the tube wall and the internal reinforcing ribs of the second heat exchange tube 32 are thickened to increase the strength of the second heat exchange tube 32, thereby enhancing the strength of the entire heat exchanger.

In some embodiments, the heat exchanger further includes a tube sleeve (not shown), which is sleeved outside the second heat exchange tube 32 and located between the first tube 2 and the second tube 3. Specifically, the tube sleeve is an aluminum tube sleeve, and the length of the aluminum tube sleeve is less than or equal to the distance between the first tube 2 and the second tube 3, which can protect the second heat exchange tube 32 while improving the second heat exchange tube. 32 The welding quality of the first tube 2 and/or the second tube 3 improves the quality of the heat exchanger.

In some embodiments, the second heat exchange tube 32 includes a first section, an intermediate section, and a second section. The first section of the second heat exchange tube 32 is inserted into the first tube 2, and the second heat exchange tube 32 is The section is inserted into the second tube 3. In other words, the middle section of the second heat exchange tube 32 is located between the first tube 2 and the second tube 3, and the second section is inserted into the first tube 2 and the second tube 3.

The thickness of the first section of the second heat exchange tube 32 is smaller than the thickness of the middle section of the second heat exchange tube 32, and the thickness of the second section of the second heat exchange tube 32 is smaller than the thickness of the middle section. By appropriately increasing the thickness of the middle section of the second heat exchange tube 32, the effect of pressing the fin 4 can be achieved, and the welding quality of the heat exchange tube 1 and the fin 4 can be improved.

Hereinafter, a heat exchanger according to an embodiment of another aspect of the present application will be described with reference to FIGS. 44-47.

As shown in FIGS. 44-47, the heat exchanger according to the embodiment of the present application includes a first tube 2, a second tube 3, and a plurality of heat exchange tubes 1. The first tube 2 and the second tube 3 are arranged at intervals. As shown in FIG. 45, the first tube 2 and the second tube 3 are spaced apart in the up-down direction. Specifically, the first tube 2 and the second tube 3 are arranged in parallel. As shown in FIG. 45, both the first tube 2 and the second tube 3 generally extend in the left-right direction, that is, the length direction of the first tube 2 and the length direction of the second tube 3 are both the left-right direction.

A plurality of heat exchange tubes 1 are arranged at intervals along the length direction of the first tube 2. As shown in Fig. 45, a plurality of heat exchange tubes 1 are arranged at intervals in the left-right direction. Specifically, the plurality of heat exchange tubes 1 are arranged in parallel to each other. As shown in FIG. 45, the length directions of the plurality of heat exchange tubes 1 are substantially the same, and the length direction of the heat exchange tubes 1 is the up and down direction.

One end of the heat exchange tube 1 is inserted into the first tube 2 to be connected to the first tube 2, and the other end of the heat exchange tube 1 is inserted into the second tube 3 to be connected to the first tube 2. The heat exchange tube 1 includes a channel, which communicates with the first tube 2 and the second tube 3. As shown in Fig. 45, the lower end of each heat exchange tube 1 is inserted into the first tube 2 to connect with the first tube 2, and the upper end of each heat exchange tube 1 is inserted into the second tube 3 to connect with the second tube 3. Thus, the first tube 2 and the second tube 3 are connected through the plurality of heat exchange tubes 1.

As shown in FIGS. 46 and 47, the plurality of heat exchange tubes 1 includes a plurality of first heat exchange tubes 31 and at least one second heat exchange tube 32, and at least part of the tube body of the first heat exchange tube 31 is formed by folding a sheet, It is called a folded flat tube in the art; the tube body of the second heat exchange tube 32 is formed by one-time molding and is called an extruded flat tube in the art. The number of the second heat exchange tubes 32 is less than the number of the first heat exchange tubes 31, and the second heat exchange tubes 32 and the first heat exchange tubes 31 are spaced apart in the length direction of the first tube 2. As shown in Figure 46 and Figure 47, the heat exchanger includes folded flat tubes and extruded flat tubes, and the number of extruded flat tubes is smaller than the number of folded flat tubes.

The first pipe 2 includes a first pipe section 11 and a second pipe section 12, and the first pipe section 11 and the second pipe section 12 of the first pipe 2 are spaced apart in the length direction of the first pipe 2 by a first spacer 5. In other words, the first spacer 5 is provided between the first pipe section 11 and the second pipe section 12 of the first pipe 2, so that the first pipe section 11 and the second pipe section 12 are not directly connected in the length direction of the first pipe 2, The heat exchanger includes at least two processes. The first spacer 5 includes a first side surface and a second side surface that are oppositely arranged in the length direction of the first tube 2.

The first pipe 2 includes a first end surface and a second end surface, and the first pipe section 11 of the first pipe 2 includes the first end surface of the first pipe 2. The first pipe section 11 of the first pipe 2 includes an opening. At least one second heat exchange tube 32 is connected to the first pipe section 11 of the first tube. The second heat exchange tube 32 includes a first side surface and a second side surface disposed opposite to each other in the length direction of the first tube 2, and at least one second side surface The distance between the first side surface of the heat exchange tube 32 and the first end surface of the first tube 2 is smaller than the distance between the first side surface of the second heat exchange tube 32 and the first side surface of the first spacer 5.

As shown in FIG. 46 and FIG. 47, the first pipe 2 includes a first pipe section 11 and a second pipe section 12 that are sequentially connected from right to left, and the first pipe section 11 and the second pipe section 12 are separated by a first spacer 5. The outer end surface of the first pipe section 11 is the right end surface of the first pipe 2. The first tube section 11 of the first tube 2 includes an opening, the second heat exchange tube 32 includes a left side and a right side, and the first spacer 5 includes a left side and a right side. The distance between the right side surface of at least one second heat exchange tube 32 and the right end surface of the first tube 2 is smaller than the distance between the right side surface of the second heat exchange tube 32 and the right side surface of the first spacer 5. distance.

It can be understood that the present application is not limited to the case where the first tube 2 only includes the two sections shown in FIGS. 46 and 47. For example, the second tube section 12 of the first tube 2 includes a plurality of subsections, and the plurality of subsections are adjacent to each other. The sub-sections are separated by a first spacer 5; or the first tube 2 further includes a third section and/or a fourth section, etc., and every two adjacent sections in the first tube 2 are separated by a first spacer 5 open.

According to the heat exchanger of the embodiment of the present application, the first heat exchange tube 31 whose at least part of the tube body is folded and formed by sheet metal is arranged between the first tube 2 and the second tube 3 and the tube body is formed by one-step molding and processing. The number of second heat exchange tubes 32 is less than that of the first heat exchange tubes 31, and the first tube 2 of the first tube 2 and the second tube 3 includes a first tube section 11 and a second tube section separated by a first spacer 5. Tube section 12, wherein the first tube section 11 of the first tube 2 includes an end surface of the first tube 2, at least one second heat exchange tube 32 is connected to the first tube section 11 of the first tube 2, and at least one second heat exchange tube The distance between one side surface of the tube 32 and the aforementioned one end surface of the first tube 2 is smaller than the distance between the second heat exchange tube 32 and one side surface of the first spacer 5, in other words, at least one second heat exchange tube 32 It is arranged adjacent to the above-mentioned one end surface of the first tube 2. Compared with the heat exchanger in which the heat exchange tubes in the prior art are all folded and formed by sheet metal, the welding quality of the heat exchanger can be improved.

In some embodiments, the ratio of the distance from the first side surface of the second heat exchange tube 32 to the first end surface of the first tube 2 to the length of the first tube 2 is less than or equal to 1:2. As shown in Figure 46 and Figure 47, the first pipe 2 includes a first pipe section 11, and an opening is provided in the first pipe section 11 of the first pipe 2. The outer end surface of the first pipe section 11 is the right end surface of the first pipe 2. The distance from the right side surface of the second heat exchange tube 32 to the right end surface of the first tube 2 in the left-right direction accounts for 0 (without)-50% (with) of the length of the first tube 2.

In some embodiments, the channels of the heat exchange tube 1 have a cross section, and the sum of the cross-sectional areas of the channels of the first heat exchange tube 31 is larger or smaller than the sum of the cross-sectional areas of the channels of the second heat exchange tube 32.

In some embodiments, the second pipe section 12 of the first pipe 2 includes the second end surface of the first pipe 2, and the second pipe section 12 of the first pipe 2 also includes an opening. Thus, the heat exchanger includes an even number of processes. Specifically, the first pipe 2 is formed by sequentially connecting the first pipe section 11 and the second pipe section 12 from right to left. The first pipe 2 includes two openings 6, one opening 6 is a refrigerant inlet and is provided in the second pipe section 12 of the first pipe 2, and the other opening 6 is a refrigerant outlet and is provided in the first pipe section 11 of the first pipe 2.

In some embodiments, there are a plurality of second heat exchange tubes 32, and the plurality of second heat exchange tubes 32 are connected to the first tube section 11 of the first tube 2 and are spaced apart from each other along the length direction of the first tube 2. As shown in FIG. 46, the plurality of second heat exchange tubes 32 are connected to the first tube section 11 of the first tube 21 at intervals in the left-right direction, and at least one second heat exchange tube 32 of the plurality of second heat exchange tubes 32 The distance between the right side of the second heat exchange tube 32 and the right end of the first tube 2 is smaller than the distance between the right side of the second heat exchange tube 32 and the right side of the first spacer 5.

When the heat exchanger is used as a condenser, the sum of the cross-sectional areas of the channels of the second heat exchange tube 32 is smaller than the sum of the cross-sectional areas of the channels of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a liquid phase, and the flow resistance is relatively small. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant outlet side of the first tube 2 is relatively small. Wherein, the channel of the second heat exchange tube 32 may be provided with a flow turbulence structure to improve the heat exchange efficiency. In addition, the width of the second heat exchange tube 32 may be smaller than the width of the first heat exchange tube 31, and the thickness of the second heat exchange tube 32 may also be smaller than the thickness of the first heat exchange tube 31. As a result, while ensuring system performance, product costs can be reduced.

When the heat exchanger is used as an evaporator, the sum of the cross-sectional areas of the channels of the second heat exchange tube 32 is greater than the sum of the cross-sectional areas of the channels of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a gaseous state, and the flow resistance is relatively large. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant outlet side of the first tube 2 is relatively large to reduce the overall heat exchanger Circulation resistance improves heat exchange efficiency. In addition, the width of the second heat exchange tube 32 may be greater than the width of the first heat exchange tube 31, and the thickness of the second heat exchange tube 32 may also be greater than the thickness of the first heat exchange tube 31.

The arrangement of the second heat exchange tube 32 of the present application is not limited to the embodiment shown in FIG. 46. For example, in other embodiments, there are multiple second heat exchange tubes 32, at least one second heat exchange tube 32 and the first The first tube section 11 of a tube 2 is connected, and the distance between the first side surface of the at least one second heat exchange tube 32 and the first end surface of the first tube 2 is smaller than the first side surface of the second heat exchange tube 32 and The distance between the first side surfaces of the first spacer 5; at least another second heat exchange tube 32 is connected to the second pipe section 12 of the first tube 2, and the second at least another second heat exchange tube 32 The distance between the side surface and the second end surface of the first tube is smaller than the distance between the second side surface of the second heat exchange tube and the second side surface of the first spacer.

As shown in FIG. 47, a part of the second heat exchange tubes 32 of the plurality of second heat exchange tubes 32 are arranged on the left side of the first tube 2 at intervals, that is, this part of the second heat exchange tubes 32 are arranged on the first tube. The refrigerant inlet side of the tube 2, and there is at least one second heat exchange tube 32 in the part of the second heat exchange tube 32, and the left side of the second heat exchange tube 32 is between the left end surface of the first tube 2 The distance is smaller than the distance between the left side surface of the second heat exchange tube 32 and the left side surface of the first spacer 5. The other part of the second heat exchange tubes 32 of the plurality of second heat exchange tubes 32 are arranged on the right side of the first tube 2 at intervals, that is, the other part of the second heat exchange tubes 32 are arranged on the refrigerant of the first tube 2 One side of the outlet, and there is at least another second heat exchange tube 32 in the other part of the second heat exchange tube 32, and the distance between the right side surface of the second heat exchange tube 32 and the right end surface of the first tube 2 It is smaller than the distance between the right side surface of the second heat exchange tube 32 and the right side surface of the second spacer 5.

As a result, the second heat exchange tubes 32 are installed on both sides of the heat exchanger, so as not to cause internal erosion due to the high temperature in this area. Moreover, when the second heat exchange tubes 32 are installed on both sides of the heat exchanger, the number of the second heat exchange tubes 32 can be adjusted according to the welding process to solve the problem of internal ablation caused by the high temperature in this area.

When the heat exchanger is used as a condenser, the sum of the cross-sectional area of the passage of each second heat exchange tube 32 in the part of the second heat exchange tubes 32 is greater than the sum of the cross-sectional area of the passage of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a gaseous state, and the flow resistance is relatively large. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant inlet side of the first tube 2 is relatively large to reduce the overall heat exchanger Circulation resistance improves heat exchange efficiency. In addition, the width of each second heat exchange tube 32 in the part of the second heat exchange tubes 32 may be greater than the width of the first heat exchange tube 31, and each second heat exchange tube 32 in the part of the second heat exchange tubes 32 The thickness of may also be greater than the thickness of the first heat exchange tube 31.

The sum of the cross-sectional area of the passage of each second heat exchange tube 32 in the other part of the second heat exchange tube 32 is smaller than the sum of the cross-sectional area of the passage of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a liquid phase, and the flow resistance is relatively small. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant outlet side of the first tube 2 is relatively small. Wherein, the channel of the second heat exchange tube 32 may be provided with a flow turbulence structure to improve the heat exchange efficiency. In addition, the width of each second heat exchange tube 32 in the other part of the second heat exchange tube 32 may be smaller than the width of the first heat exchange tube 31, and each second heat exchange tube in the other part of the second heat exchange tube 32 The thickness of the tube 32 may also be smaller than the thickness of the first heat exchange tube 31. As a result, while ensuring system performance, product costs can be reduced.

When the heat exchanger is used as an evaporator, the sum of the cross-sectional area of the passage of each second heat exchange tube 32 in the part of the second heat exchange tubes 32 is smaller than the sum of the cross-sectional area of the passage of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a liquid phase, and the flow resistance is relatively small. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant inlet side of the first tube 2 is relatively small. Wherein, the channel of the second heat exchange tube 32 may be provided with a flow turbulence structure to improve the heat exchange efficiency. In addition, the width of each second heat exchange tube 32 in the part of the second heat exchange tubes 32 may be smaller than the width of the first heat exchange tube 31, and each second heat exchange tube 32 in the part of the second heat exchange tubes 32 The thickness of may also be smaller than the thickness of the first heat exchange tube 31. As a result, while ensuring system performance, product costs can be reduced.

The sum of the cross-sectional area of the passage of each second heat exchange tube 32 in the other part of the second heat exchange tube 32 is greater than the sum of the cross-sectional area of the passage of the first heat exchange tube 31. The refrigerant on the outlet side of the refrigerant is condensed into a gaseous state, and the flow resistance is relatively large. Therefore, the sum of the cross-sectional area of the passage of the second heat exchange tube 32 provided on the refrigerant outlet side of the first tube 2 is relatively large to reduce the overall heat exchanger Circulation resistance improves heat exchange efficiency. In addition, the width of each second heat exchange tube 32 in the part of the second heat exchange tubes 32 may be greater than the width of the first heat exchange tube 31, and each second heat exchange tube in the part of the second heat exchange tubes 32 The thickness of the width of the tube 32 may also be greater than the thickness of the first heat exchange tube 31.

In addition, the opening is not limited to being provided only on the first pipe 2. For example, in some embodiments, the second pipe 3 includes a first pipe section 11 and a second pipe section 12, and the first pipe section 11 and The first pipe sections 11 of the first pipe 2 are arranged at intervals in the length direction of the first pipe 2. In other words, the first tube section 11 of the second tube 3 and the first tube section 11 of the first tube 2 are connected to different heat exchange tubes 1. For example, the first tube section 11 of the second tube 3 is connected to a part of the heat exchange tubes. The first tube section 11 of 2 is connected with another part of the heat exchange tube.

The first pipe section 11 and the second pipe section 12 of the second pipe 3 are spaced apart in the length direction of the second pipe 1 by a second spacer (not shown). In other words, the second pipe 3 is provided with a second spacer between the first pipe section 11 and the second pipe section 12 of the first pipe 2, so that the first pipe section 11 and the second pipe section 12 of the second pipe 3 are in the second pipe 3 There is no direct connection in the length direction. The first spacer 5 includes a first side surface and a second side surface that are oppositely arranged in the length direction of the first tube 2. The second pipe 1 includes a first end surface and a second end surface, and the first pipe section 11 of the second pipe 3 includes the first end surface of the second pipe 3. The first pipe section 11 of the second pipe 3 includes an opening. In other words, the inside of the first tube 2 and the inside of the second tube 3 are separated by spacers, and the heat exchanger includes an odd number of processes.

For example, the first pipe section 11 and the second pipe section 12 of the first pipe 2 are sequentially connected from left to right, and the first pipe section 11 and the second pipe section 12 of the second pipe 3 are sequentially arranged from right to left. The first tube 2 and the second tube 3 are spaced apart in the up and down direction, and the first tube section 11 of the first tube 2 and the first tube section 11 of the second tube 3 are spaced apart in the left and right direction. The first pipe 2 includes an opening and is a refrigerant inlet, and the one opening 6 is provided in the first pipe section 11 of the first pipe 2. The second pipe 3 includes another opening and is a refrigerant outlet, and the other opening 6 is provided in the first pipe section 11 of the second pipe 3.

In some embodiments, there are multiple second heat exchange tubes 32, at least one second heat exchange tube 32 is connected to the first pipe section 11 of the first tube 2, and the first side surface of the at least one second heat exchange tube 32 The distance from the first end surface of the first tube 2 is smaller than the distance between the first side surface of the second heat exchange tube 32 and the first side surface of the first spacer 5. At least another second heat exchange tube 32 is connected to the first pipe section 11 of the second tube 3, and the distance between the second side surface of at least another second heat exchange tube 32 and the second end surface of the second tube 3 is less than this The distance between the second side surface of the second heat exchange tube 32 and the second side surface of the second spacer.

For example, the first tube section 11 and the second section of the first tube 2 are connected in sequence from left to right, the first tube section 11 and the second section of the second tube 3 are arranged in sequence from right to left, and at least one second heat exchange tube 32 is connected to The first tube section 11 of the first tube 2 is connected, and the distance between the left side surface of the second heat exchange tube 32 and the left end surface of the first tube 2 is smaller than the left side surface of the second heat exchange tube 32 and the first tube. The distance between the left side faces of the spacer 5. At least another second heat exchange tube 32 is connected to the first tube section 11 of the second tube 3, and the distance between the right side surface of the second heat exchange tube 32 and the right end surface of the second tube 3 is smaller than that of the second tube 3 The distance between the right side surface of the heat pipe 32 and the right side surface of the second spacer.

Further, the sum of the cross-sectional areas of the channels of at least one second heat exchange tube 32 is greater than or less than the sum of the cross-sectional areas of the channels of at least another second heat exchange tube 32.

In some embodiments, the heat exchanger further includes fins 4 arranged between adjacent heat exchange tubes 1 in the length direction of the first tube 2. The arrangement of the fins 4 can increase the heat exchange area of the two adjacent heat exchange tubes 1 and improve the heat exchange efficiency of the heat exchanger. In addition, by arranging between the first tube 2 and the second tube 3 at least a part of the first heat exchange tube 31 whose tube body is folded and formed by sheet metal, and the second heat exchange tube 32 whose tube body is formed by one-time forming and processing, it is also possible to By reducing the fit gap caused by the height reduction of the first heat exchange tube 31 formed by folding the sheet, the welding quality of the first heat exchange tube 31 and the fin 4 is improved.

Specifically, the second heat exchange tubes 32 that are adjacent in the length direction of the first tube 2 are separated from the first heat exchange tubes 31 by fins, and/or, that are adjacent in the length direction of the first tube 2 The second heat exchange tubes 32 are only separated by fins.

In some embodiments, the heat exchange tube 1 includes a first side surface and a second side surface that are arranged oppositely and in parallel, and a third side surface and a fourth side surface that are arranged oppositely and in parallel. The distance between the heat exchange tube is smaller than the distance between the third side surface and the fourth side surface of the heat exchange tube. The heat exchange tube 1 includes at least one channel, and the channel communicates with the first tube 2 and the second tube. In other words, the heat exchange tube 1 has a width and a thickness, and the heat exchange tube 1 includes a first side surface and a second side surface arranged in parallel in the thickness direction, wherein the distance between the first side surface and the second side surface is the heat exchange tube 1 thickness. The heat exchange tube 1 further includes a third side surface and a fourth side surface arranged in parallel in the width direction thereof, wherein the distance between the third side surface and the fourth side surface is the width of the heat exchange tube 1. In other words, the heat exchange tube 1 is a flat tube called in the art.

As shown in FIGS. 45-47, the first heat exchange tube 31 and the second heat exchange tube 32 both have a width and a thickness, and the width of each heat exchange tube 1 is greater than the thickness. The thickness direction of the first heat exchange tube 31 is consistent with the thickness direction of the second heat exchange tube 32 and is the left and right direction. The width direction of the first heat exchange tube 31 is consistent with the width of the second heat exchange tube 32 and is perpendicular to the left and right. Direction and up and down direction.

In some embodiments, the second heat exchange tube 32 includes a first section, an intermediate section, and a second section. The first section of the second heat exchange tube 32 is inserted into the first tube 2, and the second heat exchange tube 32 is The section is inserted into the second tube 3. In other words, the middle section of the second heat exchange tube 32 is located between the first tube 2 and the second tube 3, and the second section is inserted into the first tube 2 and the second tube 3. Specifically, the tube sleeve is sleeved on the outside of the middle section of the second heat exchange tube 32.

In some embodiments, the heat exchanger further includes a solid plate (not shown). One end of the solid plate is inserted into the first pipe section 11 of the first tube 2 to be connected to the first pipe section 11 of the first tube 2. The other end of the plate is inserted into the second tube 3 to be connected to the second tube 3. The solid plate and the first heat exchange tube 31 are spaced apart in the length direction of the first tube 2, and the solid plate and the second heat exchange tube 32 Are arranged at intervals in the length direction of the first tube 2, the solid plate includes a first side surface and a second side surface opposite to each other in the length direction of the first tube 2, and the first side surface of the solid plate and the first end surface of the first tube 2 The distance therebetween is smaller than the distance between the first side surface of the solid plate and the first side surface of the first spacer 5. As shown in Figure 45-7, the length direction of the solid plate is consistent with the length direction of the heat exchange tube 1 and is up and down. The lower end of the solid plate is inserted into the first tube 2 to connect with the first tube 2, and the upper end of the solid plate is inserted The second tube 3 is connected to the second tube 3. The solid plates are parallel to the first heat exchange tube 31 in the left-right direction and spaced apart, and are parallel to the second heat exchange tube 32 in the left-right direction and spaced apart. In addition, the solid plate is connected to the right part of the first tube 2, and the distance between the right side of the solid plate and the right end surface of the first tube 2 is smaller than the right side of the solid plate and the right side of the first spacer 5. The distance between the surfaces, as shown in Figure 46; or at least one solid plate is connected to the left part of the first tube 2, and at least another solid plate is connected to the right part of the first tube 2, as shown in Figure 47 , And the distance between the left side of at least one solid plate and the left end surface of the first tube 2 is less than the distance between the left side of the solid plate and the left side of the first spacer 5, and at least another solid plate The distance between the right side of the solid plate and the right end surface of the first tube 2 is smaller than the distance between the right side of the solid plate and the right side of the first spacer 5.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean specific features described in conjunction with the embodiment or example , Structure, material, or characteristics are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples and the features of the different embodiments or examples described in this specification without contradicting each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. A person of ordinary skill in the art can comment on the foregoing within the scope of the present application. The embodiment undergoes changes, modifications, substitutions, and modifications.

Claims

A heat exchange tube, characterized in that there are a plurality of circulation channels in the heat exchange tube, the heat exchange tube includes a tube wall and a heat sink, the tube wall includes a first section, and the first section includes The first side wall and the second side wall are spaced apart in one direction, and the third side wall and the fourth side wall are spaced apart in the second direction. The distance between the first side wall and the second side wall is less than The distance between the third side wall and the fourth side wall, the heat sink includes a second section and a third section, the second section and the third section are arranged in a second direction, the The second section and the third section are located inside the first section, the first section, the second section and the third section are all formed by bending a sheet, and the second section includes a second connection Section and a second spacer section, the second connecting section has two side edges, and the second spacer sections adjacent in the second direction are respectively connected to the two side edges of the second connecting section, and in the first Two adjacent first passages include a second connecting section separating the two first passages, and the third section includes a third connecting section and a third spacing section. The three connecting sections include two side edges, the third spacer sections that are adjacent in the second direction are respectively connected to the two sides of the third connecting section, and the two adjacent ones in the second direction The second passage includes a third interval section that separates the two second passages, the heat exchange tube has a cross section in the length direction of the heat exchange tube, and the cross section includes a flow cross section. The heat pipe is divided into two regions with equal lengths along the second direction, including a first region and a second region, and the total area of the flow cross section in the first region is greater than the total area of the flow cross section in the second region.
The heat exchange tube according to claim 1, wherein a plurality of the circulation channels comprise a first channel and a second channel, the first channel is at least partially located in the first region, and the second channel is at least partially Located in the second region, a plurality of the first channels form a first channel layer along the second direction, and a plurality of the second channels form a second channel layer along the second direction. The first channel layer is one or more And are arranged along the first direction, the second channel layers are multiple and arranged along the first direction, and the number of the second channel layers is greater than the number of the first channel layers.
The heat exchange tube according to claim 2, wherein the number of the first channel layer is one, and the number of the second channel layer is two.
The heat exchange tube according to claim 3, wherein the third section further comprises a first straight section, and a plurality of the third spacer sections include the first straight section located in the first direction The first group of third spacer segments on both sides and the second group of third spacer segments, the plurality of third connecting segments include third connecting segments located on both sides of the first straight segment in the first direction. Group and the second group of the third connecting section, the first group of the third spacer section and the first group of the third connecting section constitute the first bending section, the second group of the third spacer section and the third group The second group of connecting sections constitutes a second bending section. The first section, the first bending section and the first straight section define a second channel layer. The first section, the first section and the first straight section define a second channel layer. The two bent sections and the first straight section define another second channel layer.
The heat exchange tube according to claim 4, wherein the first section includes at least a first part, a second part and a third part, and the first part and the second part are arranged along the second direction and constitute The first side wall, the third part constitute the second side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, and the first The bending section is adjacent to the first side wall, and the second bending section is adjacent to the second side wall.
The heat exchange tube according to claim 4, wherein the first section includes at least a first part, a second part, and a third part, and the second part and the third part are arranged along the second direction and Constitute the second side wall, the first part constitutes the first side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, and the first The bending section is adjacent to the first side wall, and the second bending section is adjacent to the second side wall.
The heat exchange tube according to claim 4, wherein the first section includes at least a first part, a second part, a third part and a fourth part, and the first part and the second part are along the second part. The first side wall is arranged along the direction and the fourth part is arranged along the second direction and constitutes the second side wall. The first part and the third part are adjacent to the first side wall. Three side walls, the second part and the fourth part are adjacent to the fourth side wall, the second section is adjacent to the third side wall, the third section is adjacent to the fourth side wall, so The first bending section is adjacent to the first side wall, and the second bending section is adjacent to the second side wall.
The heat exchange tube according to any one of claims 1-7, further comprising a fourth section, the fourth section is connected to the first section and extends along the first direction, and the fourth section Located in the first section and between the second section and the third section along the second direction. In the second direction, the circulation channel includes first sections located on both sides of the fourth section. A channel layer and a second channel layer, the first channel layer includes a plurality of first channels, and the second channel layer includes a plurality of second channels.
The heat exchange tube according to any one of claims 2-8, wherein the thickness of the plate of the second section is greater than or equal to the thickness of the plate of the third section.
The heat exchange tube according to any one of claims 2-9, wherein the third section includes a plurality of third spacer sections, and the thickness of the plate of the plurality of third spacer sections is reduced from adjacent to the second The side of the segment gradually decreases to the side away from the second segment.
The heat exchange tube according to any one of claims 2-10, wherein the length of the second section in the second direction is smaller than the length of the third section.
The heat exchange tube according to any one of claims 2-11, wherein the heat exchange tube has a cross section in the length direction of the heat exchange tube, and the total area of the flow cross section in the first region is 1.04-1.4 times the total area of the flow cross-section in the second region.
The heat exchange tube according to any one of claims 2-12, wherein each of the first channel layers is divided into two regions of equal length along the second direction, including a third region and a fourth region, so Each of the third area and the fourth area is provided with at least two first channels, and each of the second channel layers is divided into two areas of equal length along the second direction, including a fifth area and a sixth area, Each of the fifth area and the sixth area is provided with at least two second channels, the heat exchange tube has a cross section in the length direction of the heat exchange tube, and in the cross section, the third The total area of the cross section of the first channel in the region is greater than the total area of the cross section of the first channel in the fourth region and/or the total area of the cross section of the second channel in the fifth region is greater than that of the sixth region. The total area of the cross-section of the second channel in the region.
The heat exchange tube according to any one of claims 2-13, wherein the heat exchange tube has a cross section in the length direction of the heat exchange tube, and the cross section of the first channel in the cross section is The area gradually decreases along the second direction and/or the cross-sectional area of the second channel gradually decreases along the second direction.
The heat exchange tube according to any one of claims 1-14, wherein the second section and the third section are bent from the same plate and/or the second section and the first section One section is formed by bending the same plate.
A heat exchange tube, characterized in that it comprises a first side wall and a second side wall arranged opposite to each other in a first direction, and the heat exchange tube further comprises a third side wall and a fourth side arranged opposite to each other in the second direction. The distance between the first side wall and the second side wall is smaller than the distance between the third side wall and the fourth side wall, the heat exchange tube has a plurality of circulation channels, and One of the circulation channels includes a first channel and a second channel, a plurality of the first channels form a first channel layer along a second direction, and the first channel layers are one or more than two and are arranged along the first direction, The plurality of second channels form a second channel row along the first direction, and at least one of the plurality of second channel rows includes at least two second channels along the second direction. The number of layers is smaller than the number of the second passages arranged along the second direction. The heat exchange tube includes a first section, a second section, and a third section. Arranged in two directions, the first section is formed by bending a sheet, at least one of the second section and the third section is formed by a profile, the first section is a pipe wall, and the second section and The third section is an inner heat sink, the second section and the third section are located inside the first section, the second section includes a second connecting section and a second spacer section, the second connecting The section has two sides, the adjacent second spacer sections are respectively connected to the two sides of the second connecting section, and the two adjacent first passages include two first channels. A second connecting section with a channel interval, the heat exchange tube is divided into two regions of equal width along the second direction, including a first region and a second region, the first channel is at least partially located in the first region, the The second passage is at least partially located in the second region, the heat exchange tube has a cross section that intersects along the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, and the cross section includes a flow cross section. The total area of the flow cross section is greater than the total area of the flow cross section in the second region.
A heat exchanger, characterized in that it comprises:

The first tube and the second tube, set;

A plurality of heat exchange tubes, a plurality of the heat exchange tubes are arranged in parallel, one end of the heat exchange tube along its length direction is connected to the first tube, and the other end of the heat exchange tube along its length direction is connected to the The second tube is connected, the width direction of the heat exchange tube is substantially perpendicular to the length direction of the first tube, and the heat exchange tube is the heat exchange tube according to any one of claims 1-16. In the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow, the second section is closer to the inlet side of the air flow of the heat exchanger than the third section;

A plurality of fins are connected with the heat exchange tube.
A heat exchanger, characterized in that it comprises:

A first tube and a second tube, the first tube and the second tube are spaced apart;

A plurality of heat exchange tubes, the plurality of heat exchange tubes are arranged at intervals along the length direction of the first tube, one end of the heat exchange tube is inserted into the first tube to be connected with the first tube, so The other end of the heat exchange tube is inserted into the second tube to be connected to the second tube, and the heat exchange tube includes a channel that communicates the first tube and the second tube,

The plurality of heat exchange tubes include a plurality of first heat exchange tubes and at least one second heat exchange tube, at least a part of the tube body of the first heat exchange tube is formed by folding a sheet, and the tube of the second heat exchange tube The body is formed by one-time molding, the number of the second heat exchange tube is less than the number of the first heat exchange tube, and the second heat exchange tube and the first heat exchange tube are located between the first tube Are arranged at intervals in the length direction, the first tube includes at least two end faces in the length direction thereof, and the second heat exchange tube includes a first side wall and a second side wall arranged opposite to each other in the length direction of the first tube. Side wall, the distance between the first side wall of at least one second heat exchange tube and one end surface of the first tube is smaller than the distance between the first side wall of the second heat exchange tube and the other end of the first tube The distance between one end face.
The heat exchanger according to claim 18, wherein the ratio of the distance from the first side wall of the second heat exchange tube to the one end surface of the first tube to the length of the first tube Less than or equal to 1:5.
The heat exchanger according to claim 18 or 19, wherein at least two end faces of the first tube include a first end face and a second end face, and there are at least two second heat exchange tubes, one of which The distance between the first side wall of the second heat exchange tube and the first end surface of the first tube is smaller than the distance between the first side wall of the second heat exchange tube and the second end surface of the first tube Distance, and the one second heat exchange tube is located at the outermost one of the plurality of heat exchange tubes in the length direction of the first tube; the first side wall of the other second heat exchange tube and the first The distance between the second end surfaces of the tubes is smaller than the distance between the first side wall of the other second heat exchange tube and the first end surface of the first tube, and the other second heat exchange tube is located in a plurality of The heat exchange tube is the other outermost in the length direction of the first tube.
The heat exchanger according to any one of claims 18-20, further comprising a solid plate, one end of the solid plate is connected to the first tube, and the other end of the solid plate Part is connected with the second tube, the solid plate and the first heat exchange tube are spaced apart in the length direction of the first tube, and the solid plate and the second heat exchange tube are arranged in the first A tube is arranged at intervals in the length direction, the solid plate includes a first side wall and a second side wall that are arranged opposite to each other in the length direction of the first tube, and the first side wall of the solid plate is opposite to the first side wall. The distance between one end surface of a tube is smaller than the distance between the first side wall of the solid plate and the other end surface of the first tube.
The heat exchanger according to any one of claims 18-21, wherein the heat exchange tube includes a first side wall and a second side wall that are opposite and parallel, and a third side that is opposite and parallel. The distance between the first side wall and the second side wall of the heat exchange tube is smaller than the distance between the third side wall and the fourth side wall of the heat exchange tube, and the first The thickness of the second heat exchange tube is greater than the thickness of the first heat exchange tube.
A heat exchanger, characterized in that it comprises:

A first tube and a second tube, the first tube and the second tube are spaced apart;

A plurality of heat exchange tubes, the plurality of heat exchange tubes are arranged at intervals along the length direction of the first tube, one end of the heat exchange tube is inserted into the first tube to be connected with the first tube, so The other end of the heat exchange tube is inserted into the second tube to be connected to the second tube. The heat exchange tube includes a channel that communicates with the first tube and the second tube. The heat exchange tube includes a plurality of first heat exchange tubes and at least one second heat exchange tube. At least a part of the tube body of the first heat exchange tube is formed by folding sheets, and the tube body of the second heat exchange tube is formed by It is formed by one-time molding, the number of the second heat exchange tubes is less than the number of the first heat exchange tubes, and the second heat exchange tubes and the first heat exchange tubes are in the length direction of the first tube Upper interval setting;

The first pipe includes a first pipe section and a second pipe section, the first pipe section and the second pipe section of the first pipe are spaced apart in the length direction of the first pipe by a first spacer, and the first spacer includes A first side wall and a second side wall are arranged opposite to each other in the length direction of the first pipe. The first pipe includes a first end surface and a second end surface. The first pipe section of the first pipe includes the first end surface. The first end surface of the tube, the first tube section of the first tube includes an opening, at least one of the second heat exchange tubes is connected to the first tube section of the first tube, and the second heat exchange tube is included in the The first side wall and the second side wall are arranged opposite to each other in the length direction of the first tube, and the distance between the first side wall of at least one of the second heat exchange tubes and the first end surface of the first tube is less than this The distance between the first side wall of the second heat exchange tube and the first side wall of the first spacer.
The heat exchanger according to claim 23, wherein the ratio of the distance from the first side wall of the second heat exchange tube to the first end surface of the first tube to the length of the first tube is less than Or equal to 1:2.
The heat exchanger according to claim 23 or 24, wherein the passage of the heat exchange tube has a cross section, and the sum of the cross-sectional area of the passage of the first heat exchange tube is larger or smaller than that of the second heat exchange tube. The sum of the cross-sectional area of the passage of the heat exchange tube.
The heat exchanger according to any one of claims 23-25, wherein the second tube section of the first tube comprises a second end surface of the first tube, and the second tube section of the first tube Including openings,

There are multiple second heat exchange tubes, at least one second heat exchange tube is connected to the first pipe section of the first tube, and the first side wall of the at least one second heat exchange tube is connected to the first tube The distance between the first end faces of the second heat exchange tube is smaller than the distance between the first side wall of the second heat exchange tube and the first side wall of the first spacer, and at least another second heat exchange tube is connected to the first side wall of the first spacer. The second tube section of the tube is connected, and the distance between the second side wall of the at least another second heat exchange tube and the second end surface of the first tube is smaller than the second side wall of the second heat exchange tube and the second end surface of the first tube. The distance between the second side walls of the first spacer.
The heat exchanger according to any one of claims 23-26, wherein the second tube comprises a first tube section and a second tube section, and the first tube section of the second tube is connected to the first tube section. The first pipe section is spaced apart in the length direction of the first pipe, the first pipe section and the second pipe section of the second pipe are spaced apart in the length direction of the second pipe by a second spacer, the The second spacer includes a first side wall and a second side wall that are arranged opposite to each other in the length direction of the first tube. The second tube includes a first end surface and a second end surface. The pipe section includes the first end surface of the second pipe, and the first pipe section of the second pipe includes an opening,

There are multiple second heat exchange tubes, at least one second heat exchange tube is connected to the first pipe section of the first tube, and the first side wall of the at least one second heat exchange tube is connected to the first tube The distance between the first end surfaces of the second heat exchange tube is smaller than the distance between the first side wall of the second heat exchange tube and the first side wall of the first spacer, and at least another second heat exchange tube is connected to the second The first tube section of the tube is connected, and the distance between the second side wall of at least another second heat exchange tube and the second end surface of the second tube is smaller than the second side wall of the second heat exchange tube and the second end surface of the second tube. The distance between the second side walls of the second spacer.
The heat exchanger according to any one of claims 23-27, wherein the channel of the second heat exchange tube has a cross-section, and the cross-sectional area of the channel of at least one of the second heat exchange tube is less than The sum is greater than or less than the sum of the cross-sectional area of the passage of at least another second heat exchange tube.
The heat exchanger according to any one of claims 23-28, further comprising a solid plate, one end of the solid plate is connected to the first pipe section of the first tube, and the solid plate The other end of the solid plate is connected to the second tube, the solid plate and the first heat exchange tube are spaced apart in the length direction of the first tube, and the solid plate is connected to the second heat exchange tube. Are arranged at intervals in the length direction of the first tube, the solid plate includes a first side wall and a second side wall that are arranged opposite to each other in the length direction of the first tube, and the first side wall of the solid plate The distance from the first end surface of the first tube is smaller than the distance between the first side wall of the solid plate and the first side wall of the first spacer.
The heat exchanger according to any one of claims 23-29, wherein the heat exchange tube comprises a first side wall and a second side wall that are opposite and parallel, and a third side that is opposite and parallel. The distance between the first side wall and the second side wall of the heat exchange tube is smaller than the distance between the third side wall and the fourth side wall of the heat exchange tube, and the first The thickness of the second heat exchange tube is greater than the thickness of the first heat exchange tube.