CN112964111B

CN112964111B - Heat exchange tube and heat exchanger with same

Info

Publication number: CN112964111B
Application number: CN201911284474.2A
Authority: CN
Inventors: 童仲尧
Original assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Current assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2021-11-26
Anticipated expiration: 2039-12-13
Also published as: CN112964111A

Abstract

The invention discloses a heat exchange tube and a heat exchanger with the same, wherein a plurality of circulation channels are arranged in the heat exchange tube, the plurality of circulation channels comprise a first channel and a second channel, the heat exchange tube comprises a first section, a second section and a third section, the plurality of first channels form a first channel layer along a second direction, the plurality of second channels form a second channel layer along the second direction, the number of the second channel layers is greater than that of the first channel layers, the heat exchange tube is divided into a first area and a second area which are equal in width along the second direction, the heat exchange tube is provided with a cross section which is intersected with the width direction of the heat exchange tube along the thickness direction of the heat exchange tube, the cross section comprises a circulation section, and the total area of the circulation section in the first area is greater than that in the second area. The heat exchanger using the heat exchange tube according to the embodiment of the invention has improved heat exchange efficiency.

Description

Heat exchange tube and heat exchanger with same

Technical Field

The invention relates to the technical field of heat exchange, in particular to a heat exchange tube and a heat exchanger with the same.

Background

In a heat exchange system, along the flowing direction of a refrigerant, the evaporation or condensation positions of the refrigerant in parallel flow channels are different, so that the refrigerant is not matched with the heat exchange temperature difference in the flow channels in flow distribution, obvious temperature difference appears on the cross section of a flat pipe close to the windward side and the leeward side, obvious supercooling degree or superheat temperature gradient is formed on the cross section of the flat pipe close to the outlet of a heat exchanger, and the heat exchange capacity of the windward side cannot be better utilized.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the heat exchange tube which can improve the heat exchange efficiency of the windward side of the heat exchanger and improve the heat exchange capacity of the heat exchanger.

The invention also provides another heat exchange tube.

The invention also provides a heat exchanger with the heat exchange tube.

In order to achieve the above object, an embodiment according to a first aspect of the present invention provides a heat exchange tube, the heat exchanger including a first side wall and a second side wall arranged oppositely in a first direction, the heat exchange tube further including a third side wall and a fourth side wall arranged oppositely in a second direction, a distance between the first side wall and the second side wall being smaller than a distance between the third side wall and the fourth side wall, the heat exchange tube having a plurality of flow channels therein, the plurality of flow channels including a first channel and a second channel, the plurality of first channels constituting a first channel layer in the second direction, the plurality of second channels constituting a second channel layer in the second direction, the first channel layer being one or more and arranged in the first direction, the second channel layer being plurality and arranged in the first direction, the number of the second channel layers being greater than the number of the first channel layers, the heat exchange tube comprises a first section, a second section and a third section, the first section is a tube wall, the second section and the third section are inner radiating fins, the second section and the third section are positioned in the first section, the second section and the third section are formed by bending plates, the second section comprises a second connecting section and a second spacing section, the second connecting section is provided with two side edges, the adjacent second spacing section is respectively connected with the two side edges of the second connecting section, a second connecting section for spacing the two first channels is arranged between the two adjacent first channels, the third section comprises a third connecting section and a third spacing section, the third connecting section is provided with two side edges, the adjacent third spacing section is respectively connected with the two side edges of the third connecting section, and a third spacing section for spacing the two second channels is arranged between the two adjacent second channels, the heat exchange tube is divided into two areas with equal width along a second direction and comprises a first area and a second area, the first channel is at least partially positioned in the first area, the second channel is at least partially positioned in the second area, the heat exchange tube is provided with a cross section which is intersected with the width direction of the heat exchange tube along the thickness direction of the heat exchange tube, the cross section comprises a flow section, and the total area of the flow section in the first area is larger than that of the flow section in the second area.

According to the heat exchange tube provided by the embodiment of the invention, the volume distribution of each flow channel of the heat exchange tube meets the requirement of a heat exchange system, and the heat exchange capability of the heat exchanger using the heat exchange tube in the heat exchange system is improved.

In addition, the heat exchange tube according to the above embodiment of the present invention may further have the following additional technical features:

optionally, each of the first channel layers is divided into two regions with equal width along the second direction, and includes a third region and a fourth region, each of the third region and the fourth region includes at least two first channels, each of the second channel layers is divided into two regions with equal width along the second direction, and includes a fifth region and a sixth region, each of the fifth region and the sixth region includes at least two second channels, the heat exchange tube has a cross section intersecting with the width direction of the heat exchange tube along the thickness direction of the heat exchange tube, the cross section includes a flow cross section, and the total area of the flow cross sections in the third region is larger than the total area of the flow cross sections in the fourth region and/or the total area of the flow cross sections in the fifth region is larger than the total area of the flow cross sections in the sixth region.

Optionally, the heat exchange tube has a cross section intersecting with the width direction of the heat exchange tube along the thickness direction of the heat exchange tube, and the cross section of the first channel is gradually reduced along the second direction and/or the cross section of the second channel is gradually reduced along the second direction.

Optionally, the heat exchange tube further includes a fourth section, the fourth section is connected to the first section and extends along the first direction, and the fourth section is located in the first section and located between the second section and the third section along the second direction.

Optionally, the second section and the third section are formed by bending the same plate.

Optionally, the first section, the second section, and the third section are formed by bending the same plate.

Optionally, the number of the first channel layer is one, and the number of the second channel layer is two.

Optionally, the third segment further includes a first straight segment, the plurality of third partition segments include a first group of third partition segments and a second group of third partition segments located on two sides of the first straight segment in the first direction, the plurality of third connection segments include a first group of third connection segments and a second group of third connection segments located on two sides of the first straight segment in the first direction, the first group of third partition segments and the first group of third connection segments form a first bending segment, the second group of third partition segments and the second group of third connection segments form a second bending segment, the first bending segment and the first straight segment define a second channel layer, and the first segment, the second bending segment and the first straight segment define another second channel layer.

Optionally, the first segment includes at least a first portion, a second portion and a third portion, the first portion and the second portion are arranged along a second direction and form the first sidewall, the third portion forms the second sidewall, the second segment is adjacent to the third sidewall, the third segment is adjacent to the fourth sidewall, the first bent segment is adjacent to the first sidewall, and the second bent segment is adjacent to the second sidewall.

Optionally, the first segment at least includes a first portion, a second portion and a third portion, the second portion and the third portion are arranged along a second direction and form the second sidewall, the first portion forms the first sidewall, the second segment is adjacent to the third sidewall, the third segment is adjacent to the fourth sidewall, the first bent segment is adjacent to the first sidewall, and the second bent segment is adjacent to the second sidewall.

Optionally, the first segment at least includes a first portion, a second portion, a third portion and a fourth portion, the first portion and the second portion are arranged along a second direction and form the first sidewall, the third portion and the fourth portion are arranged along the second direction and form the second sidewall, the first portion and the third portion are adjacent to the third sidewall, the second portion and the fourth portion are adjacent to the fourth sidewall, the second segment is adjacent to the third sidewall, the third segment is adjacent to the fourth sidewall, the first bent segment is adjacent to the first sidewall, and the second bent segment is adjacent to the second sidewall.

An embodiment according to the second aspect of the present invention provides a heat exchange tube comprising a first side wall and a second side wall which are oppositely arranged in a first direction, a third side wall and a fourth side wall which are oppositely arranged in a second direction, the distance between the first side wall and the second side wall being smaller than the distance between the third side wall and the fourth side wall, a plurality of flow-through channels being provided in the heat exchange tube, the plurality of flow-through channels comprising a first channel and a second channel, the plurality of first channels constituting a first channel layer in the second direction, the first channel layer being one or more and being arranged in the first direction, the plurality of second channels constituting a second channel column in the first direction, at least one of the plurality of second channel columns comprising at least two second channels in the second direction, the number of layers of the first channel layer being smaller than the number of second channels arranged in the second direction, the heat exchange tube comprises a first section, a second section and a third section, wherein the second section and the third section are arranged along a second direction, the first section is formed by bending a plate, at least one of the second section and the third section is formed by a section bar, the first section is a tube wall, the second section and the third section are inner radiating fins, the second section and the third section are positioned in the first section, the second section comprises a second connecting section and a second spacing section, the second connecting section is provided with two side edges, the adjacent second spacing sections are respectively connected with the two side edges of the second connecting section, a second connecting section for spacing the two first channels is arranged between the two adjacent first channels, the heat exchange tube is divided into two regions with equal width along the second direction, the two regions comprise a first region and a second region, and at least part of the first channel is positioned in the first region, the second channel is at least partially located in the second area, the heat exchange tube is provided with a cross section which is intersected along the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, the cross section comprises a flow section, and the total area of the flow section in the first area is larger than that of the flow section in the second area.

Embodiments according to a third aspect of the present invention provide a heat exchanger, including a first header and a second header, the first header and the second header being arranged substantially in parallel; a plurality of heat exchange tubes, the heat exchange tubes being arranged in parallel, one end of each heat exchange tube in the length direction thereof being connected to the first header, the other end of each heat exchange tube in the length direction thereof being connected to the second header, the width direction of each heat exchange tube being substantially perpendicular to the length direction of the first header, the heat exchange tubes being according to embodiments of the first or second aspect of the present invention, the second section being closer to the inlet side of the air flow of the heat exchanger than the third section in the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow; and the fins are connected with the heat exchange tube.

According to the heat exchanger provided by the embodiment of the invention, the heat exchange efficiency is improved by utilizing the heat exchange tube provided by the embodiment of the first aspect or the second aspect of the invention.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a heat exchange tube according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a heat exchange tube according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 4 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 5 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 6 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 7 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 8 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 9 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 10 is a schematic view illustrating a folding process of a heat exchange tube according to another embodiment of the present invention.

Fig. 11 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 12 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 13 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 14 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 15 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 16 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 17 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 18 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 19 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 20 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 21 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 22 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 23 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 24 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 25 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 26 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 27 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 28 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 29 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 30 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 31 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 32 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Fig. 33 is a schematic structural view of a heat exchange tube according to another embodiment of the present invention.

Reference numerals: the heat exchange tube 1 comprises a first section 100, a first side wall 101, a second side wall 102, a third side wall 103, a fourth side wall 104, a first portion 131, a second portion 132, a third portion 133, a fourth portion 134, a second section 200, a first channel 201, a second connecting section 210, a second spacing section 220, a third section 300, a second channel 301, a third connecting section 310, a third spacing section 320, a first straight section 330, a first bent section 340, a second bent section 350 and a fourth section 400.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A heat exchange tube 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 26, a heat exchange tube 1 according to an embodiment of the present invention includes a first side wall 101 and a second side wall 102 which are oppositely arranged in a first direction, the heat exchange tube 1 further includes a third side wall 103 and a fourth side wall 104 which are oppositely arranged in a second direction (the first direction is shown by an arrow a in the figure, and the second direction is shown by an arrow B in the figure), 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 exchange tube 1 has a plurality of flow-through channels therein, and the plurality of flow-through channels includes a first channel 201 and a second channel 301.

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

The heat exchange tube 1 comprises a first section 100, a second section 200 and a third section 300, wherein the first section 100 is a tube wall, the second section 200 and the third section 300 are inner radiating fins, the second section 200 and the third section 300 are positioned inside the first section 100, the second section 200 and the third section 300 are formed by bending plates, the second section 200 comprises a second connecting section 210 and a second spacing section 220, the second connecting section 210 is provided with two side edges, the adjacent second spacing section 220 is respectively connected with the two side edges of the second connecting section 210, the second spacing section 220 for spacing the two first channels 201 is arranged between the two adjacent first channels 201, the third section 300 comprises a third connecting section 310 and a third spacing section 320, the third connecting section 310 is provided with two side edges, the adjacent third spacing section 320 is respectively connected with the two side edges of the third connecting section 310, the third spacing section 320 for spacing the two second channels 301 is arranged between the two adjacent second channels 301, the heat exchange tube 1 is divided into two regions of equal width in the second direction, including a first region in which the first channels 201 are at least partially located and a second region in which the second channels 301 are at least partially located.

The heat exchange tube 1 has a cross section intersecting with the width direction of the heat exchange tube 1 along the thickness direction of the heat exchange tube 1, the total area of the cross sections of the plurality of first channels 201 is larger than the total area of the cross sections of the plurality of second channels 301 in the cross section, the cross section comprises a flow section, the heat exchange tube 1 is divided into two regions with equal width along the second direction, the two regions comprise a first region and a second region, and the total area of the flow section in the first region is larger than the total area of the flow section in the second region.

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

It will be understood by those skilled in the art that "the total area of the flow-through cross-section" refers to the total area of the cross-section of the channel within the corresponding region through which fluid can flow.

According to the heat exchange tube 1 of the embodiment of the present invention, the plurality of first channels 201 are divided in the first section 100 by the second section 200, the plurality of second channels 301 are divided in the first section 100 by the third section 300, and the total area of the flow cross section in the first area is larger than that in the second area. The heat exchange tube 1 with non-uniform flow channels can be constructed, so that the sectional area of the flow channels on one side of the heat exchange tube 1 in the width direction is larger than that on the other side, and the heat exchange on one side of the heat exchange tube 1 is more sufficient than that on the other side. For example, if the second section 200 is adjacent to the third sidewall 103 and the third section 300 is adjacent to the fourth sidewall 104, the heat exchange tube 1 can exchange heat more sufficiently in the portion adjacent to the third sidewall 103 than in the portion adjacent to the fourth sidewall 104, and the volume distribution of each flow channel meets the requirement of the heat exchange system.

Compare the heat exchange tube that the symmetry set up among the correlation technique, can set up the air intake that first passageway 201 is close to the heat exchanger, set up the air outlet that second passageway 301 is close to the heat exchanger, the air current of heat exchanger gets into earlier the outside through first passageway 201 after the back, pass through the outside of second passageway 301 again, can make the air current pass through the more abundant part of heat transfer earlier, make the temperature of the refrigerant in the heat exchange tube 1 more even, avoid forming super-cooling degree or superheat degree temperature gradient, each runner volume distribution accords with heat exchange system's demand, improve heat exchange effect of heat exchange tube 1.

And, a plurality of first channels 201 are formed into a first channel layer along a second direction, and a plurality of second channels 301 are formed into a second channel layer along the second direction, wherein the first channel layer is one or more and is arranged along the first direction, the second channel layer is a plurality of and is arranged along the first direction, and the number of the second channel layers is greater than that of the first channel layers. Can be convenient for form the asymmetric structure of circulation passageway in heat exchange tube 1, be convenient for make the total area of first passageway 201 sectional area be greater than the total area of second passageway 301 sectional area, compare the technical scheme who circulates the passageway and arrange into the one deck, can make the sectional area of first passageway 201 and second passageway 301 have more obvious differentiation to further reduce the difference in temperature in the heat exchange tube 1, each runner volume distributes and accords with heat exchange system's demand, further improves heat exchange tube 1's heat transfer effect.

In addition, since the first section 100, the second section 200 and the third section 300 are formed by bending plates, compared with the technical scheme of forming the second section 200 and the third section 300 by using sectional materials, the cost of the heat exchange tube 1 can be reduced, and the manufacturing process of the heat exchange tube 1 is simplified.

Therefore, according to the heat exchange tube 1 provided by the embodiment of the invention, the volume distribution of each flow channel of the heat exchange tube meets the requirement of a heat exchange system, and the heat exchange capacity of a heat exchanger using the heat exchange tube in the heat exchange system is improved.

In some embodiments of the present invention, as shown in fig. 1 to 33, a 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 a second direction, a plurality of first channels 201 are arranged along the second direction to form a first channel layer, a plurality of second channels 301 are arranged along the second direction to form a second channel layer, the first channel layer is one or more and is arranged along the first direction, the second channel layer is a plurality of and is arranged along the first direction, the number of the second channel layer is greater than the number of the first channel layer, the heat exchange tube 1 has a cross section intersecting with a width direction of the heat exchange tube 1 along a thickness direction of the heat exchange tube 1, and a total area of cross sections of the plurality of first channels 201 is greater than a total area of cross sections of the plurality of second channels 301.

Specifically, as shown in fig. 1 to 33, each of the first channel layers is divided into two regions having equal widths in the second direction, including a third region and a fourth region, each of the third and fourth areas includes at least two first channels 201, each of the second channel layers is divided into two areas having equal widths in the second direction, including a fifth area and a sixth area, each of the fifth area and the sixth area comprises at least two second channels 301, the heat exchange tube has a cross section intersecting in a thickness direction of the heat exchange tube and in a width direction of the heat exchange tube, the cross section comprises a flow cross section, and the total area of the flow cross sections in the third region is larger than the total area of the flow cross sections in the fourth region and/or the total area of the flow cross sections in the fifth region is larger than the total area of the flow cross sections in the sixth region. Therefore, the first channel 201 and the second channel 301 can form two areas with equal width respectively, so that the heat exchange effect of two sides of the heat exchange tube 1 can be further distinguished conveniently, the uniformity of the temperature of the heat exchange tube 1 is further ensured, and the heat exchange effect of the heat exchange tube 1 is further improved.

Alternatively, as shown in fig. 32, the heat exchange tube 1 has a cross section in which the sectional area of the first channel 201 is gradually reduced in the second direction and/or the sectional area of the second channel 301 is gradually reduced in the second direction, intersecting the width direction of the heat exchange tube 1 in the thickness direction of the heat exchange tube 1. In particular, the cross-sectional area of the first channel 201 decreases from the third sidewall 103 to the fourth sidewall 104 and/or the cross-sectional area of the second channel 301 decreases from the third sidewall 103 to the fourth sidewall 104 in this cross-section. Thus, the heat exchange tube 1 with non-uniform flow channels can be further formed, and the temperature uniformity of the heat exchange tube 1 is further ensured.

More specifically, as shown in fig. 1 to 7 and 26 to 33, the heat exchange tube 1 further includes a fourth section 400, the fourth section 400 is connected to the first section 100 and extends in the first direction, and the fourth section 400 is located in the first section 100 and between the second section 200 and the third section 300 in the second direction. This facilitates the separation of the first channel 201 from the second channel, further ensuring the temperature uniformity of the heat exchange tube 1.

Advantageously, as shown in fig. 1-33, the first channel layer is one and the second channel layer is two. Therefore, the manufacturing difficulty of the heat exchange tube 1 can be reduced under the condition that the number of the second channel layers is larger than that of the first channel layers.

In some embodiments of the present invention, as shown in fig. 3, 5, 7-26, the second segment 200 and the third segment 300 are bent from the same sheet material. Therefore, the number of parts of the heat exchange tube 1 can be reduced, the cost of the heat exchange tube 1 is reduced, and the assembly process of the heat exchange tube 1 is simplified.

In some embodiments of the present invention, as shown in fig. 8-26, the first section 100, the second section 200, and the third section 300 are bent from the same sheet of material. Therefore, the number of parts of the heat exchange tube 1 can be further reduced, the cost of the heat exchange tube 1 is reduced, and the assembly process of the heat exchange tube 1 is simplified.

Specifically, as shown in fig. 8-26, the third segment 300 further includes a first flat segment 330, the plurality of third spaced segments 320 includes a first group of third spaced segments and a second group of third spaced segments located on both sides of the first flat segment 330 in the first direction, the plurality of third connecting segments 310 includes a first group of third connecting segments and a second group of third connecting segments located on both sides of the first flat segment 330 in the first direction, the first group of third spaced segments and the first group of third connecting segments constitute a first bent segment 340, the second group of third spaced segments and the second group of third connecting segments constitute a second bent segment 350, the first segment 100, the first bent segment 340 and the first flat segment 330 define a second channel layer, and the first segment 100, the second bent segment 350 and the first flat segment 330 define another second channel layer. This may facilitate the construction of two second channel layers, further facilitating ensuring that the total area of the cross-sectional area of the first channel 201 is larger than the total area of the cross-sectional area of the second channel 301.

In some embodiments of the present invention, as shown in fig. 8-14, the first segment 100 includes at least a first portion 131, a second portion 132, and a third portion 133, the first portion 131 and the second portion 132 are aligned in the second direction and form the first sidewall 101, the third portion 133 forms the second sidewall 102, the second segment 200 is adjacent to the third sidewall 103, the third segment 300 is adjacent to the fourth sidewall 104, the first bent segment 340 is adjacent to the first sidewall 101, and the second bent segment 350 is adjacent to the second sidewall 102. Thus, the bending forming of the heat exchange tube 1 is facilitated, and the non-uniform heat exchange tube 1 is formed conveniently.

In other embodiments of the present invention, as shown in fig. 23-26, the first segment 100 includes at least a first portion 131, a second portion 132, and a third portion 133, the second portion 132 and the third portion 133 are aligned in the second direction and form the second sidewall 102, the first portion 131 forms the first sidewall 101, the second segment 200 is adjacent to the third sidewall 103, the third segment 300 is adjacent to the fourth sidewall 104, the first bent segment 340 is adjacent to the first sidewall 101, and the second bent segment 350 is adjacent to the second sidewall 102. This also facilitates the bending of the heat exchanger tube 1 and facilitates the formation of the non-uniform heat exchanger tube 1.

In still other embodiments of the present invention, as shown in fig. 15-22, the first segment 100 includes at least a first portion 131, a second portion 132, a third portion 133, and a fourth portion 134, the first portion 131 and the second portion 132 are aligned in the second direction and form the first sidewall 101, the third portion 133 and the fourth portion 134 are aligned in the second direction and form the second sidewall 102, the first portion 131 and the third portion 133 are adjacent to the third sidewall 103, the second portion 132 and the fourth portion 134 are adjacent to the fourth sidewall 104, the second segment 200 is adjacent to the third sidewall 103, the third segment 300 is adjacent to the fourth sidewall 104, the first bent segment 340 is adjacent to the first sidewall 101, and the second bent segment 350 is adjacent to the second sidewall 102. This also facilitates the bending of the heat exchanger tube 1 and facilitates the formation of the non-uniform heat exchanger tube 1.

A heat exchange tube 1 according to further embodiments of the present invention will be described with reference to fig. 27 to 33.

As shown in fig. 27 to 33, the heat exchange tube 1 according to the embodiment of the present invention includes a first sidewall 101 and a second sidewall 102 oppositely arranged in a first direction, the heat exchange tube 1 further includes a third sidewall 103 and a fourth sidewall 104 oppositely arranged in a second direction, a distance between the first sidewall 101 and the second sidewall 102 is smaller than a distance between the third sidewall 103 and the fourth sidewall 104, the heat exchange tube 1 has a plurality of flow-through channels therein, and the plurality of flow-through channels include a first channel 201 and a second channel 301.

The plurality of first channels 201 form a first channel layer along a second direction, the first channel layer is one or more and is arranged along the first direction, the plurality of second channels 301 form a second channel row along the first direction, at least one row of the plurality of second channel rows comprises at least two second channels 301 along the second direction, and the number of layers of the first channel layer is less than the number of the second channels 301 arranged along the second direction.

The heat exchange tube 1 comprises a first section 100, a second section 200 and a third section 300, wherein the second section 200 and the third section 300 are arranged along a second direction, the first section 100 is formed by bending plates, at least one of the second section 200 and the third section 300 is formed by a section bar, the first section 100 is a tube wall, the second section 200 and the third section 300 are inner radiating fins, and the second section 200 and the third section 300 are positioned inside the first section 100.

The second segment 200 includes a second connecting segment 210 and a second spacing segment 220, the second connecting segment 210 has two sides, the adjacent second spacing segments 220 are respectively connected with the two sides of the second connecting segment 210, and the second spacing segment 220 for spacing the two first channels 201 is included between the adjacent two first channels 201.

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

According to the heat exchange tube 1 of the embodiment of the invention, at least one of the second section 200 and the third section 300 is formed by using the sectional material, so that the second section 200 and the third section 300 can be conveniently formed, flow channels with different shapes can be conveniently constructed, and the flexibility of the heat exchange tube 1 is improved.

The heat exchange tube 1 according to an embodiment of the present invention will be described one by one with reference to the accompanying drawings.

In an embodiment of the present invention, as shown in fig. 1 and 2, the first section 100, the second section 200, and the third section 300 are respectively formed by bending different plate materials, the third section 300 includes a plurality of first overlapping portions, a plurality of second overlapping portions, and a connecting portion, the plurality of first overlapping portions and the plurality of second overlapping portions are alternately arranged in the second direction, the first overlapping portions are adjacent to the first sidewall 101 in the first direction, the second overlapping portions are adjacent to the second sidewall 102, and the adjacent first overlapping portions and the second overlapping portions are connected by the connecting portion.

In a specific embodiment of the present invention, as shown in fig. 3, the second section 200 and the third section 300 are bent from the same plate material based on the embodiment shown in fig. 1 and 2.

In an embodiment of the present invention, as shown in fig. 4, the first, second and

third segments

100, 200 and 300 are respectively formed by bending different plates, and the third segment 300 includes a first wavy segment and a second wavy segment formed by a plurality of third connecting segments 310 and third spacing segments 320, wherein the first wavy segment is adjacent to the first sidewall and the second wavy segment is adjacent to the second sidewall in the first direction, and the first wavy segment and the second wavy segment are formed by bending the same plate.

In an embodiment of the present invention, as shown in fig. 5, the second section 200 and the third section 300 are bent from the same plate material based on the embodiment shown in fig. 4.

In one embodiment of the present invention, as shown in fig. 6, the first, second and

third sections

100, 200 and 300 are respectively formed by bending different plate materials, and the third section 300 includes a plurality of first rectangular portions adjacent to the first side wall 101 and a plurality of second rectangular portions adjacent to the second side wall 102 in a first direction, and the plurality of first rectangular portions and the plurality of second rectangular portions are alternately arranged in a second direction.

In an embodiment of the present invention, as shown in fig. 7, the second section 200 and the third section 300 are bent from the same plate material based on the embodiment shown in fig. 6.

Fig. 8-14 illustrate embodiments of the invention in which the first section 100 includes at least a first portion 131, a second portion 132, and a third portion 133, the first portion 131 and the second portion 132 being aligned in a second direction and forming a first sidewall 101, the third portion 133 forming a second sidewall 102, the second section 200 being adjacent to the third sidewall 103, the third section 300 being adjacent to the fourth sidewall 104, the first folded section 340 being adjacent to the first sidewall 101, and the second folded section 350 being adjacent to the second sidewall 102.

In one embodiment of the present invention, as shown in fig. 8 to 10, the second segment 200, the second bent segment 350, the first straight segment 330, the first portion 131, the third portion 133, the second portion 132, and the first bent segment 340 are sequentially connected. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103, a side of the second bent segment 350 adjacent to the fourth sidewall 104 is connected to a side of the first flat segment 330 adjacent to the fourth sidewall 104, a side of the first flat segment 330 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104, a side of the first portion 131 adjacent to the third sidewall 103 is connected to a side of the third portion 133 adjacent to the third sidewall 103, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 11, the second segment 200, the second bent segment 350, the third portion 133, the first portion 131, the first straight segment 330, the second portion 132, and the first bent segment 340 are sequentially connected. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103, a side of the second bent segment 350 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first flat segment 330 adjacent to the third sidewall 103, a side of the first flat segment 330 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 12, the third portion 133, the second bent section 350, the second section 200, the first portion 131, the first straight section 330, the second portion 132, and the first bent section 340 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second bent section 350 adjacent to the fourth sidewall 104, a side of the second bent section 350 adjacent to the third sidewall 103 is connected to a side of the second section 200 adjacent to the fourth sidewall 104, a side of the second section 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first flat section 330 adjacent to the third sidewall 103, a side of the first flat section 330 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent section 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 13, the second segment 200, the second bent segment 350, the third portion 133, the first portion 131, the first straight segment 330, the first bent segment 340 and the second portion 132 are connected in sequence. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103, a side of the second bent segment 350 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first flat segment 330 adjacent to the third sidewall 103, a side of the first flat segment 330 adjacent to the fourth sidewall 104 is connected to a side of the first bent segment 340 adjacent to the fourth sidewall 104, and a side of the first bent segment 340 adjacent to the third sidewall 103 is connected to a side of the second portion 132 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 14, the third portion 133, the second bent section 350, the second section 200, the first portion 131, the first straight section 330, the first bent section 340 and the second portion 132 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second bent section 350 adjacent to the fourth sidewall 104, a side of the second bent section 350 adjacent to the third sidewall 103 is connected to a side of the second section 200 adjacent to the fourth sidewall 104, a side of the second section 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first straight section 330 adjacent to the third sidewall 103, a side of the first straight section 330 adjacent to the fourth sidewall 104 is connected to a side of the first bent section 340 adjacent to the fourth sidewall 104, and a side of the first bent section 340 adjacent to the third sidewall 103 is connected to a side of the second portion 132 adjacent to the third sidewall 103.

Fig. 15-22 illustrate embodiments of the invention in which the first section 100 includes at least a first portion 131, a second portion 132, a third portion 133, and a fourth portion 134, the first portion 131 and the second portion 132 being aligned in a second direction and forming the first sidewall 101, the third portion 133 and the fourth portion 134 being aligned in the second direction and forming the second sidewall 102, the first portion 131 and the third portion 133 being adjacent to the third sidewall 103, the second portion 132 and the fourth portion 134 being adjacent to the fourth sidewall 104, the second section 200 being adjacent to the third sidewall 103, the third section 300 being adjacent to the fourth sidewall 104, the first bent section 340 being adjacent to the first sidewall 101, and the second bent section 350 being adjacent to the second sidewall 102.

In one embodiment of the present invention, as shown in fig. 15, the second section 200, the third section 133, the first section 131, the first straight section 330, the second bent section 350, the fourth section 134, the second section 132, and the first bent section 340 are connected in sequence. Specifically, a side of the second section 200 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first straight section 330 adjacent to the third sidewall 103, a side of the first straight section 330 adjacent to the fourth sidewall 104 is connected to a side of the second bent section 350 adjacent to the fourth sidewall 104, a side of the second bent section 350 adjacent to the third sidewall 103 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent section 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 16, the third portion 133, the second portion 200, the first portion 131, the first straight portion 330, the second bent portion 350, the fourth portion 134, the second portion 132, and the first bent portion 340 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first straight portion 330 adjacent to the third sidewall 103, a side of the first straight portion 330 adjacent to the fourth sidewall 104 is connected to a side of the second bent portion 350 adjacent to the fourth sidewall 104, a side of the second bent portion 350 adjacent to the third sidewall 103 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent portion 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 17, the second segment 200, the third portion 133, the first portion 131, the fourth portion 134, the second bent segment 350, the first straight segment 330, the second portion 132, and the first bent segment 340 are sequentially connected. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second bent segment 350 adjacent to the fourth sidewall 104, a side of the second bent segment 350 adjacent to the third sidewall 103 is connected to a side of the first straight segment 330 adjacent to the third sidewall 103, a side of the first straight segment 330 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 18, the third portion 133, the second portion 200, the first portion 131, the fourth portion 134, the second bent portion 350, the first straight portion 330, the second portion 132, and the first bent portion 340 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second bent portion 350 adjacent to the fourth sidewall 104, a side of the second bent portion 350 adjacent to the third sidewall 103 is connected to a side of the first straight portion 330 adjacent to the third sidewall 103, a side of the first straight portion 330 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, and a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent portion 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, 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 bent section 340, the first flat section 330 and the second bent section 350 are connected in sequence. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103, a side of the first bent segment adjacent to the fourth sidewall 104 is connected to a side of the first straight segment 330 adjacent to the fourth sidewall 104, and a side of the first straight segment 330 adjacent to the third sidewall 103 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 20, the third portion 133, the second portion 200, the first portion 131, the fourth portion 134, the second portion 132, the first bent portion 340, the first flat portion 330, and the second bent portion 350 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103, a side of the first bent segment adjacent to the fourth sidewall 104 is connected to a side of the first straight segment 330 adjacent to the fourth sidewall 104, and a side of the first straight segment 330 adjacent to the third sidewall 103 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103.

In one embodiment of the present invention, 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 bent section 350, the first flat section 330 and the first bent section 340 are connected in sequence. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103, a side of the second bent segment 350 adjacent to the fourth sidewall 104 is connected to a side of the first straight segment 330 adjacent to the fourth sidewall 104, and a side of the first straight segment 330 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 22, the third portion 133, the second portion 200, the first portion 131, the fourth portion 134, the second portion 132, the second bent portion 350, the first straight portion 330, and the first bent portion 340 are connected in sequence. Specifically, a side of the third portion 133 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the third sidewall 103, a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the fourth portion 134 adjacent to the third sidewall 103, a side of the fourth portion 134 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the second bent portion 350 adjacent to the third sidewall 103, a side of the second bent portion 350 adjacent to the fourth sidewall 104 is connected to a side of the first straight portion 330 adjacent to the fourth sidewall 104, and a side of the first straight portion 330 adjacent to the third sidewall 103 is connected to a side of the first bent portion 340 adjacent to the third sidewall 103.

Fig. 23-26 illustrate embodiments of the invention in which the first section 100 includes at least a first portion 131, a second portion 132, and a third portion 133, the second portion 132 and the third portion 133 being aligned in a second direction and forming a second sidewall 102, the first portion 131 forming a first sidewall 101, the second section 200 adjacent the third sidewall 103, the third section 300 adjacent the fourth sidewall 104, the first folded section 340 adjacent the first sidewall 101, and the second folded section 350 adjacent the second sidewall 102.

In one embodiment of the present invention, as shown in fig. 23, the second segment 200, the second portion 132, the first portion 131, the third portion 133, the first bent segment 340, the first flat segment 330, and the second bent segment 350 are connected in sequence. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first bent segment 340 adjacent to the third sidewall 103, a side of the first bent segment 340 adjacent to the fourth sidewall 104 is connected to a side of the first flat segment 330 adjacent to the fourth sidewall 104, and a side of the first flat segment 330 adjacent to the third sidewall 103 is connected to a side of the second bent segment 350 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 24, the second segment 200, the second portion 132, the first portion 131, the first bent segment 340, the first flat segment 330, the second bent segment 350, and the third portion 133 are sequentially connected. Specifically, a side of the second segment 200 adjacent to the fourth sidewall 104 is connected to a side of the second portion 132 adjacent to the fourth sidewall 104, a side of the second portion 132 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first bending segment 340 adjacent to the fourth sidewall 104, a side of the first bending segment 340 adjacent to the third sidewall 103 is connected to a side of the first straight segment 330 adjacent to the third sidewall 103, a side of the first straight segment 330 adjacent to the fourth sidewall 104 is connected to a side of the second bending segment 350 adjacent to the fourth sidewall 104, and a side of the second bending segment 350 adjacent to the third sidewall 103 is connected to a side of the third portion 133 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 25, the second portion 132, the second segment 200, the first portion 131, the first bent segment 340, the first flat segment 330, the second bent segment 350, and the third portion 133 are connected in sequence. Specifically, a side of the second portion 132 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the first bending section 340 adjacent to the fourth sidewall 104, a side of the first bending section 340 adjacent to the third sidewall 103 is connected to a side of the first straight section 330 adjacent to the third sidewall 103, a side of the first straight section 330 adjacent to the fourth sidewall 104 is connected to a side of the second bending section 350 adjacent to the fourth sidewall 104, and a side of the second bending section 350 adjacent to the third sidewall 103 is connected to a side of the third portion 133 adjacent to the third sidewall 103.

In one embodiment of the present invention, as shown in fig. 26, the second portion 132, the second segment 200, the first portion 131, the third portion 133, the first bent segment 340, the first straight segment 330, and the second bent segment 350 are connected in sequence. Specifically, a side of the second portion 132 adjacent to the fourth sidewall 104 is connected to a side of the second portion 200 adjacent to the fourth sidewall 104, a side of the second portion 200 adjacent to the third sidewall 103 is connected to a side of the first portion 131 adjacent to the fourth sidewall 104 is connected to a side of the third portion 133 adjacent to the fourth sidewall 104, a side of the third portion 133 adjacent to the third sidewall 103 is connected to a side of the first bent portion 340 adjacent to the third sidewall 103, a side of the first bent portion 340 adjacent to the fourth sidewall 104 is connected to a side of the first flat portion 330 adjacent to the fourth sidewall 104, and a side of the first flat portion 330 adjacent to the third sidewall 103 is connected to a side of the second bent portion 350 adjacent to the third sidewall 103.

Fig. 27-33 illustrate embodiments of the invention in which the third segment 300 is formed from a profile.

In one embodiment of the present invention, as shown in fig. 27, the third segment 300 includes a plurality of first plates oriented in a first direction and spaced apart in a second direction, and second plates oriented in the second direction, the second plates being located at the middle of the first plates in the first direction.

In a specific embodiment of the present invention, 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 a specific embodiment of the present invention, as shown in fig. 29, the width of the second segment 200 is smaller than the width of the third segment 300 in the second direction on the basis of the embodiment shown in fig. 27.

In one embodiment of the present invention, as shown in fig. 30, the third segment 300 includes a plurality of circular portions arranged at intervals in the second direction and a plurality of connecting portions, and two adjacent circular portions are connected by the connecting portions.

In one embodiment of the present invention, as shown in fig. 31, the third segment 300 includes a partition portion oriented in the second direction, a first trapezoid portion and a second trapezoid portion, which are in one-to-one correspondence in the first direction and are respectively located at both sides of the partition portion.

In a specific embodiment of the present invention, as shown in fig. 32, on the basis of the embodiment shown in fig. 27, the distance between two adjacent first plates is gradually decreased from the side near the third side wall 103 to the side near the fourth side wall 104.

In one embodiment of the present invention, as shown in fig. 33, the third section 300 includes first plates, second plates, and third plates, the third plates being oriented in the second direction, the first plates and the second plates being oriented in the first direction and located on both sides of the third plates in the first direction, respectively, the first plates and the second plates being alternately arranged in the second direction.

It will be understood by those skilled in the art that, in the above embodiments, "connected" may mean directly connected or indirectly connected according to actual needs of those skilled in the art.

A heat exchanger according to an embodiment of the present invention is described below. The heat exchanger according to the embodiment of the invention comprises a first collecting pipe, a second collecting pipe, a plurality of heat exchange pipes and a plurality of fins.

The first header and the second header are arranged substantially in parallel. The heat exchange tubes are arranged in parallel, one end of each heat exchange tube in the length direction is connected with the first collecting pipe, the other end of each heat exchange tube in the length direction is connected with the second collecting pipe, the width direction of each heat exchange tube is substantially perpendicular to the length direction of the first collecting pipe, each heat exchange tube is the heat exchange tube 1 according to the embodiment of the invention, and the second section 200 is closer to the inlet side of the air flow of the heat exchanger than the third section 300 in the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow. The plurality of fins are connected with the heat exchange tube.

Therefore, the first channel 201 is closer to the inlet side of the air flow than the second channel 301, so that the uniformity of the temperature in the heat exchange tube 1 is improved, and the heat exchange effect of the heat exchanger is ensured.

According to the heat exchanger provided by the embodiment of the invention, the heat exchange tube 1 provided by the embodiment of the invention has the advantages of good heat exchange effect and the like.

Other constructions and operations of heat exchangers according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange tube is characterized by comprising a first side wall and a second side wall which are oppositely arranged along a first direction, a third side wall and a fourth side wall which are oppositely arranged along a 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, a plurality of circulation channels are arranged in the heat exchange tube, the circulation channels comprise a first channel and a second channel, the first channels form a first channel layer along the second direction, the second channels 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 layer is multiple and is arranged along the first direction, the number of the second channel layer is larger than that of the first channel layer, the heat exchange tube comprises a first section, a second section and a third section, the first section is a pipe wall, the second section and the third section are inner radiating fins, the second section and the third section are positioned in the first section, the second section and the third section are formed by bending plates, the second section comprises a second connecting section and a second spacing section, the second connecting section is provided with two side edges, the adjacent second spacing section is respectively connected with the two side edges of the second connecting section, a second connecting section for spacing the two first channels is arranged between the adjacent first channels, the third section comprises a third connecting section and a third spacing section, the third connecting section is provided with two side edges, the adjacent third spacing section is respectively connected with the two side edges of the third connecting section, and a third spacing section for spacing the two second channels is arranged between the adjacent second channels, the heat exchange tube is divided into two areas with equal width along a second direction and comprises a first area and a second area, the first channel is at least partially positioned in the first area, the second channel is at least partially positioned in the second area, the heat exchange tube is provided with a cross section which is intersected with the width direction of the heat exchange tube along the thickness direction of the heat exchange tube, the cross section comprises a flow section, and the total area of the flow section in the first area is larger than that of the flow section in the second area.

2. The heat exchange tube of claim 1, wherein each of the first channel layers is divided into two regions of equal width in the second direction, including a third region and a fourth region, each of the third and fourth areas includes at least two first channels, each of the second channel layers is divided into two areas having equal widths in the second direction, including a fifth area and a sixth area, each of the fifth and sixth regions comprising at least two second channels, the heat exchange tube having a cross section intersecting in a thickness direction thereof and a width direction thereof, the cross section comprises a flow cross section, and the total area of the flow cross sections in the third region is larger than the total area of the flow cross sections in the fourth region and/or the total area of the flow cross sections in the fifth region is larger than the total area of the flow cross sections in the sixth region.

3. A heat exchange tube according to claim 2, wherein the heat exchange tube has a cross-section intersecting the tube width direction in the thickness direction thereof, in which the sectional area of the first channel gradually decreases in the second direction and/or the sectional area of the second channel gradually decreases in the second direction.

4. A heat exchange tube according to claim 1, further comprising a fourth segment connected to the first segment and extending in the first direction, the fourth segment being located within the first segment and between the second and third segments in the second direction.

5. The heat exchange tube of claim 1, wherein the second and third sections are bent from the same sheet.

6. The heat exchange tube of claim 5, wherein the first, second and third sections are bent from the same sheet.

7. The heat exchange tube of claim 6, wherein the first channel layer is one and the second channel layer is two.

8. The heat exchange tube of claim 7, wherein said third segment further comprises a first flat segment, said plurality of third spaced segments comprises a first set of third spaced segments and a second set of third spaced segments disposed on opposite sides of said first flat segment in a first direction, said plurality of third connected segments comprises a first set of third connected segments and a second set of third connected segments disposed on opposite sides of said first flat segment in said first direction, said first set of third spaced segments and said first set of third connected segments form a first bent segment, said second set of third spaced segments and said second set of third connected segments form a second bent segment, said first bent segment and said first flat segment define a second channel layer, and said first segment, said second bent segment and said first flat segment define another second channel layer.

9. The heat exchange tube of claim 8, wherein the first section comprises at least a first portion, a second portion and a third portion, the first portion and the second portion being aligned in a second direction and constituting the first sidewall, the third portion constituting the second sidewall, the second section being adjacent the third sidewall, the third section being adjacent the fourth sidewall, the first bent section being adjacent the first sidewall, and the second bent section being adjacent the second sidewall.

10. The heat exchange tube of claim 8, wherein the first section comprises at least a first portion, a second portion and a third portion, the second portion and the third portion being aligned in a second direction and constituting the second sidewall, the first portion constituting the first sidewall, the second section being adjacent the third sidewall, the third section being adjacent the fourth sidewall, the first bent section being adjacent the first sidewall, and the second bent section being adjacent the second sidewall.

11. The heat exchange tube of claim 8, wherein the first section comprises at least a first portion, a second portion, a third portion and a fourth portion, the first portion and the second portion being aligned in a second direction and forming the first sidewall, the third portion and the fourth portion being aligned in the second direction and forming the second sidewall, the first portion and the third portion being adjacent the third sidewall, the second portion and the fourth portion being adjacent the fourth sidewall, the second section being adjacent the third sidewall, the third section being adjacent the fourth sidewall, the first bent section being adjacent the first sidewall, and the second bent section being adjacent the second sidewall.

12. A heat exchange tube comprising a first side wall and a second side wall arranged in opposition to each other in a first direction, the heat exchange tube further comprising a third side wall and a fourth side wall arranged in opposition to each other in a second direction, the distance between the first side wall and the second side wall being smaller than the distance between the third side wall and the fourth side wall, a plurality of flow-through channels being provided in the heat exchange tube, the plurality of flow-through channels comprising a first channel and a second channel, the plurality of first channels constituting a first channel layer in the second direction, the first channel layer being one or more and being arranged in the first direction, the plurality of second channels constituting a second channel row in the first direction, at least one of the plurality of second channel rows comprising at least two second channels in the second direction, the number of layers of the first channel layer being smaller than the number of second channels arranged in the second direction, the heat exchange tube comprises a first section, a second section and a third section, wherein the second section and the third section are arranged along a second direction, the first section is formed by bending a plate, at least one of the second section and the third section is formed by a section bar, the first section is a tube wall, the second section and the third section are inner radiating fins, the second section and the third section are positioned in the first section, the second section comprises a second connecting section and a second spacing section, the second connecting section is provided with two side edges, the adjacent second spacing sections are respectively connected with the two side edges of the second connecting section, a second connecting section for spacing the two first channels is arranged between the two adjacent first channels, the heat exchange tube is divided into two regions with equal width along the second direction, the two regions comprise a first region and a second region, and at least part of the first channel is positioned in the first region, the second channel is at least partially located in the second area, the heat exchange tube is provided with a cross section which is intersected along the thickness direction of the heat exchange tube and the width direction of the heat exchange tube, the cross section comprises a flow section, and the total area of the flow section in the first area is larger than that of the flow section in the second area.

13. A heat exchanger, comprising:

the first collecting pipe and the second collecting pipe are arranged in parallel approximately;

a plurality of heat exchange tubes, the plurality of heat exchange tubes being arranged in parallel, one end of each heat exchange tube in the length direction thereof being connected to the first header, the other end of each heat exchange tube in the length direction thereof being connected to the second header, the width direction of each heat exchange tube being substantially perpendicular to the length direction of the first header, the heat exchange tubes being as defined in any one of claims 1 to 12, the second section being adjacent to the inlet side of the air flow of the heat exchanger than the third section in the direction from the inlet side of the air flow of the heat exchanger to the outlet side of the air flow;

and the fins are connected with the heat exchange tube.