CN114623702B

CN114623702B - Heat Exchanger

Info

Publication number: CN114623702B
Application number: CN202011460421.4A
Authority: CN
Inventors: 汪峰; 蒋建龙; 周杭兵
Original assignee: Sanhua Hangzhou Micro Channel Heat Exchanger Co Ltd
Current assignee: Zhejiang Sanhua Heat Exchanger Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2023-08-29
Anticipated expiration: 2040-12-11
Also published as: CN114623702A

Abstract

The invention discloses a heat exchanger, which comprises a first collecting pipe, a second collecting pipe, a plurality of heat exchange pipes, a plurality of fins and a first piece. The first channel includes a first sub-channel, a second sub-channel, a third sub-channel, and a fourth sub-channel, the first sub-channel being located on the right side of the first member, and the second sub-channel being located on the left side of the first member. The first sub-channel is in communication with the heat exchange tube. The first member includes a convex portion facing the first sub-passage, the convex portion having a gap in a left-right direction with an inner peripheral surface of a first peripheral wall surrounding the first sub-passage. The third sub-channel communicates with the first sub-channel and the second sub-channel, and the fourth sub-channel communicates with the first sub-channel and the second sub-channel to form at least one circulation flow channel within the first channel. Therefore, when the heat exchanger works as an evaporator of the refrigerant, the heat exchanger is beneficial to dispersing the refrigerant and improving the overall heat exchange performance.

Description

Heat exchanger

Technical Field

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

Background

In the prior art, the multi-channel heat exchanger is widely applied to an air conditioner refrigerating system. The multichannel heat exchanger comprises heat exchange tubes and fins arranged on the outer sides of the heat exchange tubes, and the refrigerant exchanges heat with air flowing through the fins through the heat exchange tubes. The heat exchange tube comprises a plurality of refrigerant channels which are arranged at intervals, and the outline of the periphery of the cross section of the heat exchange tube is generally flat. The multi-channel heat exchanger further comprises a collecting pipe, wherein the collecting pipe is communicated with the heat exchange pipes, and the refrigerant can enter the plurality of heat exchange pipes through the collecting pipe or enter the collecting pipe through the plurality of heat exchange pipes.

In some applications, for example, when the multichannel heat exchanger works as an evaporator under an evaporation working condition, the collecting pipe is placed along the vertical direction from top to bottom, two-phase refrigerant enters the collecting pipe, liquid refrigerant is easily accumulated below, and the gaseous refrigerant with small specific gravity is accumulated above, so that the local concentration of the refrigerant is caused, and the heat exchange performance of the heat exchanger is not improved.

Disclosure of Invention

Therefore, the embodiment of the invention provides a heat exchanger which is beneficial to reducing the local concentration of the refrigerant in the collecting pipe and improving the overall heat exchange performance when being used as an evaporator of the refrigerant.

According to an embodiment of the invention, a heat exchanger includes:

the system comprises a first collecting pipe and a second collecting pipe, wherein the first collecting pipe comprises a first peripheral wall and a first channel surrounded by the first peripheral wall;

the outer peripheral outline of the cross section of each heat exchange tube is generally flat, 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 so as to be communicated with the first collecting pipe and the second collecting pipe, the plurality of heat exchange tubes are arranged at intervals along the length direction of the first collecting pipe, and when the heat exchanger works as an evaporator of a refrigerant, the included angle between the length direction of the first collecting pipe and the horizontal plane is larger than 0 degree; and

A first assembly located inside the first channel, the first assembly comprising a first piece, the first channel comprising a first sub-channel and a second sub-channel, the first sub-channel being located on one side of the first piece along the length of the heat exchange tube, the second sub-channel being located on the other side of the first piece along the length of the heat exchange tube;

the first sub-channel is communicated with the heat exchange tube, and at least part of one end of the heat exchange tube in the length direction is positioned in the first sub-channel;

the first piece comprises a first side part facing the first sub-channel, the first side part comprises a plurality of protruding parts positioned in the first sub-channel, and gaps are reserved between the protruding parts and the inner peripheral surface of the first peripheral wall surrounding the first sub-channel in the length direction of the heat exchange tube;

the first channel further comprises a third sub-channel and a fourth sub-channel, the third sub-channel is communicated with the first sub-channel and the second sub-channel, and the fourth sub-channel is communicated with the first sub-channel and the second sub-channel, so that at least one circulating channel for circulating and flowing the refrigerant is formed in the first channel.

The first channel in the first collecting pipe of the heat exchanger comprises a first sub-channel, a second sub-channel, a third sub-channel and a fourth sub-channel, and the first sub-channel, the second sub-channel, the third sub-channel and the fourth sub-channel form at least one circulating channel for circulating and flowing the refrigerant. Therefore, the refrigerant circularly flows in the circulation channel, the refrigerant can be uniformly distributed in the first collecting pipe, and the refrigerant can be uniformly distributed in the heat exchange pipe.

Therefore, the heat exchanger provided by the embodiment of the invention can fully utilize the refrigerant to exchange heat, and is beneficial to improving the heat exchange performance.

In some embodiments, a plurality of the bosses are spaced apart in a length direction of the first header, and at least one of the heat exchange tubes is located between two bosses adjacent in the length direction of the first header.

In some embodiments, the minimum distance between the at least one heat exchange tube and the first side portion is d1, the minimum distance between the adjacent two protruding portions and the inner peripheral surface of the first peripheral wall surrounding the first sub-channel in the length direction of the heat exchange tube is d2, and d1 is greater than d2.

In some embodiments, the first member includes a first through hole penetrating the first member in a length direction of the heat exchange tube to communicate the first sub-channel and the second sub-channel, and a second through hole penetrating the first member in a length direction of the heat exchange tube to communicate the first sub-channel and the second sub-channel, the first through hole being located on one side of the boss in a length direction of the first header, and the second through hole being located on the other side of the boss in a length direction of the first header.

In some embodiments, the cross-sectional flow area of the first through-hole is smaller than the cross-sectional flow area of the second through-hole.

In some embodiments, the first member includes a third through hole, at least 2 of the protrusions are adjacently disposed along the length direction of the first header, the third through hole is located between at least 2 of the protrusions adjacently disposed, and the third through hole penetrates the first member along the length direction of the heat exchange tube, and the third through hole is a plurality of.

In some embodiments, the heat exchanger further comprises a first partition separating the first channel into a third channel and a fourth channel, the third channel comprising the first sub-channel and the second sub-channel, the first partition comprising a fourth through hole penetrating through the first partition along a length direction of the first header, the fourth through hole communicating the second sub-channel and the fourth channel.

In some embodiments, the heat exchanger further includes a second member located in the fourth channel, the second member separating the fourth channel into a fifth sub-channel and a sixth sub-channel arranged side by side in a length direction of the heat exchange tube, at least a portion of one end of the heat exchange tube in the length direction being located in the fifth sub-channel, the second member including a fifth through hole penetrating through the second member in the length direction of the heat exchange tube, the fifth through hole communicating the fifth sub-channel and the sixth sub-channel.

In some embodiments, the heat exchanger further includes a second partition separating the first sub-channel into a seventh sub-channel and an eighth sub-channel in a length direction of the first header, the second partition separating the second sub-channel into a ninth sub-channel and a tenth sub-channel in the length direction of the first header, the second partition includes a sixth through-hole penetrating the second partition in the length direction of the first header, the sixth through-hole communicates with the ninth sub-channel and the tenth sub-channel, the first member includes a seventh through-hole penetrating the first member in the length direction of the heat exchange tube, the seventh through-hole communicates with the seventh sub-channel and the ninth sub-channel, the first member further includes an eighth through-hole penetrating the first member in the length direction of the heat exchange tube, and the eighth through-hole communicates with the eighth sub-channel and the tenth sub-channel.

In some embodiments, the heat exchanger further comprises an inlet and outlet tube, the inlet and outlet tube comprising a first inlet and outlet tube and a second inlet and outlet tube, the first inlet and outlet tube and the second inlet and outlet tube being connected to the second header; or the first inlet and outlet pipe is connected with the first collecting pipe, and the second inlet and outlet pipe is connected with the second collecting pipe.

In some embodiments, the first assembly further includes a support plate, one side portion of the support plate in the length direction of the heat exchange tube being in abutment with the first member, the other side portion of the support plate in the length direction of the heat exchange tube being in abutment with the inner peripheral surface of the first peripheral wall.

In some embodiments, an end of the at least one protruding portion facing away from the first member in the length direction of the first heat exchange tube abuts against the inner peripheral surface of the first peripheral wall, and the protruding portion has a ninth through hole penetrating therethrough in the length direction of the first header.

Drawings

Fig. 1 is a schematic top view of a heat exchanger according to one embodiment of the invention.

Fig. 2 is a cross-sectional view A-A of the heat exchanger of fig. 1.

Fig. 3 is a schematic perspective view of the heat exchanger of fig. 2.

Fig. 4 is an exemplary perspective view of a first piece according to one embodiment of the invention.

Fig. 5 is another exemplary perspective view of a first piece according to one embodiment of the present invention.

Fig. 6 is a further exemplary perspective view of a first member according to one embodiment of the present invention.

Fig. 7 is a cross-sectional view of a heat exchanger according to another embodiment of the present invention.

Fig. 8 is a schematic perspective view of the heat exchanger of fig. 7.

Fig. 9 is an exemplary side view schematic of a first member according to another embodiment of the invention.

Fig. 10 is an exemplary perspective view of a first member according to another embodiment of the present invention.

Fig. 11 is another exemplary side view schematic of a first member according to another embodiment of the invention.

Fig. 12 is a cross-sectional view of a heat exchanger according to yet another embodiment of the present invention.

Fig. 13 is a schematic perspective view of the heat exchanger of fig. 12.

Fig. 14 is an exemplary side view schematic of a first member according to yet another embodiment of the invention.

Fig. 15 is a cross-sectional view of a heat exchanger according to yet another embodiment of the present invention.

Fig. 16 is a schematic perspective view of the heat exchanger of fig. 15.

Fig. 17 is an exemplary side view schematic of a first member according to yet another embodiment of the invention.

Fig. 18 is an exemplary perspective view of a first member according to yet another embodiment of the present invention.

Fig. 19 is another exemplary side view schematic of a first member according to yet another embodiment of the invention.

Fig. 20 is a sectional view of a heat exchanger according to a fifth embodiment of the present invention.

Fig. 21 is a schematic perspective view of the heat exchanger of fig. 20.

Fig. 22 is an exemplary side view schematic of a first member according to a fifth embodiment of the invention.

Fig. 23 is an exemplary perspective view of a first member according to a fifth embodiment of the present invention.

Reference numerals:

a heat exchanger 001;

a first header 100; a first peripheral wall 110; a first channel 120; a first end cap 130; a first separator 140; a fourth through hole 141; a third channel 150; a first sub-channel 151; a second sub-channel 152; a third sub-channel 153; a fourth sub-channel 154; a seventh sub-channel 155; an eighth subchannel 156; a ninth sub-channel 157; tenth subchannel 158; a fourth channel 160; a fifth sub-channel 161; a sixth sub-channel 162; a second separator 170; a sixth through hole 171;

a second header 200; a second peripheral wall 210; a second channel 220; a fifth channel 221; a sixth channel 222; a second end cap 230; a third separator 240;

A heat exchange tube 300; fins 400;

a first inlet/outlet pipe 510; a second inlet and outlet pipe 520;

a first component 600; a first member 610; a first through hole 611; a second through hole 612; a third through hole 613; a seventh through hole 614; an eighth through hole 615; a boss 620; a ninth through hole 621; a first gap 622; a second gap 623; a support plate 630; a second member 640; fifth through hole 641.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

As shown in fig. 1 to 23, the heat exchanger 001 according to the embodiment of the present invention includes a first header 100, a second header 200, a plurality of heat exchange tubes 300, a plurality of fins 400, and a first assembly 600.

As shown in fig. 1 to 3, the first header 100 includes a first peripheral wall 110 and a first channel 120 surrounded by the first peripheral wall 110, and one end (e.g., an upper end of the first header 100 in fig. 2) in the longitudinal direction of the first header 100 (e.g., an upper end of the first header 100 in fig. 2) and the other end (e.g., a lower end of the first header 100 in fig. 2) in the longitudinal direction of the first header 100 are each provided with a first end cap 130. The second header 200 includes a second peripheral wall 210 and a second channel 220 surrounded by the second peripheral wall 210, and both one end (e.g., an upper end of the second header 200 in fig. 2) in the length direction of the second header 200 (e.g., an upper end of the second header 200 in fig. 2) and the other end (e.g., a lower end of the second header 200 in fig. 2) in the length direction of the second header 200 are provided with second end caps 230.

The outer circumferential profile of the cross section of the heat exchange tube 300 is generally flat. One end (e.g., the left end of the heat exchange tube 300 in fig. 1) of the heat exchange tube 300 in the length direction (e.g., the right end of the heat exchange tube 300 in fig. 1) is connected to the first header 100, and the other end (e.g., the right end of the heat exchange tube 300 in fig. 1) of the heat exchange tube 300 in the length direction is connected to the second header 200 to communicate the first header 100 and the second header 200. The plurality of heat exchange tubes 300 are arranged at intervals along the length direction of the first collecting pipe 100, the plurality of fins 400 are arranged at intervals along the length direction of the heat exchange tubes 300, the fins 400 penetrate through the plurality of heat exchange tubes 300 along the length direction of the first collecting pipe 100, and an included angle between the length direction of the first collecting pipe 100 and the horizontal plane is larger than 0 degree. Preferably, when the heat exchanger operates as an evaporator of the refrigerant, the length direction of the first header 100 is perpendicular to the horizontal plane. That is, the angle between the longitudinal direction of the first header 100 and the horizontal plane is 90 degrees.

The first assembly 600 is positioned within the first channel 120, the first assembly 600 including a first member 610. The first channel 120 includes a first sub-channel 151 and a second sub-channel 152, the first sub-channel 151 being located on one side of the first member 610 (e.g., on the right side of the first member 610 in fig. 2) along the length of the heat exchange tube 300, and the second sub-channel 152 being located on the other side of the first member 610 (e.g., on the left side of the first member 610 in fig. 2) along the length of the heat exchange tube 300.

The first sub-channel 151 communicates with the heat exchange tube 300, and at least a portion of one end of the heat exchange tube 300 in the length direction is located within the first sub-channel 151.

The first member 610 includes a first side portion facing the first sub-channel 151, the first side portion including a protrusion 620 located in the first sub-channel 151, the protrusion 620 having a gap from an inner circumferential surface of the first peripheral wall 110 surrounding the first sub-channel 151 in a length direction of the heat exchange tube 300, the protrusion 620 being plural. Thus, the refrigerant can flow downward through the gap in the first sub-channel 151, and the protrusion 620 can slow down the flow of the refrigerant, facilitating uniform distribution of the refrigerant in the plurality of heat exchange tubes 300.

The first passage 120 further includes a third sub-passage 153 and a fourth sub-passage 154, the third sub-passage 153 communicates with the first sub-passage 151 and the second sub-passage 152, and the fourth sub-passage 154 communicates with the first sub-passage 151 and the second sub-passage 152 to form at least one circulation passage for circulating the refrigerant in the first passage 120.

Specifically, the third sub-channel 153 is located at one end (e.g., the upper end of the first member 610 in fig. 2) in the longitudinal direction of the first member 610 (e.g., the up-down direction in fig. 2), and the fourth sub-channel 154 is located at the other end (e.g., the lower end of the first member 610 in fig. 2) in the longitudinal direction of the first member 610.

The first channel 120 in the first header 100 of the heat exchanger 001 according to the embodiment of the present invention includes a first sub-channel 151, a second sub-channel 152, a third sub-channel 153, and a fourth sub-channel 154, and the first sub-channel 151, the second sub-channel 152, the third sub-channel 153, and the fourth sub-channel 154 form at least one circulation channel through which refrigerant circulates. Thus, the refrigerant circulates in the circulation channel, and the refrigerant can be uniformly distributed in the first header 100. In addition, the protrusion 620 in the first sub-channel 151 can slow down the flow of the refrigerant, reduce the local concentration of the refrigerant in the header, and facilitate the distribution of the refrigerant in the plurality of heat exchange tubes 300.

Therefore, the heat exchanger 001 according to the embodiment of the invention is beneficial to the refrigerant to be distributed in the collecting pipe in a dispersed way, and has good heat exchange performance.

In some embodiments, as shown in fig. 2 and 3, the plurality of bosses 620 are spaced apart in the length direction of the first header 100, and at least one heat exchange tube 300 is located between two bosses 620 adjacent in the length direction of the first header 100. That is, one or more heat exchange tubes 300 are provided between two adjacent bosses 620 in the length direction of the first header 100. In other words, at least a portion of the heat exchange tubes 300 are alternately arranged with the plurality of bosses 620 in the length direction of the first header 100. Thus, the heat exchanger 001 according to the embodiment of the present invention is advantageous in that the refrigerant is uniformly distributed in the plurality of heat exchange tubes 300, and in that the heat exchange performance of the heat exchanger 001 is improved.

In some embodiments, the at least one heat exchange tube 300 has a minimum distance d1 from the first side, the adjacent two protrusions 620 have a minimum distance d2 from the inner circumferential surface of the first circumferential wall 110 surrounding the first sub-channel 151 in the length direction of the heat exchange tube 300, and d1 is greater than d2. That is, the minimum distance from at least one heat exchange tube 300 to one side surface of the first member 610 facing the first sub-channel 151 (e.g., the right side surface of the first member 610 in fig. 2) is d1, the minimum distance from the adjacent two protrusions 620 to the inner circumferential surface of the first circumferential wall 110 surrounding the first sub-channel 151 in the above embodiment is d2, and d1 is greater than d2. Specifically, in the first sub-channel 151, the protruding portion 620 and one end of the heat exchange tube 300 in the length direction are distributed in a stepwise manner. Therefore, when the refrigerant of the heat exchanger 001 flows in the first sub-channel 151, the refrigerant is sequentially blocked by the protruding portion 620 and the heat exchange tube 300, the flow track of the refrigerant is serpentine, the flow speed of the refrigerant is slowed down, the refrigerant is uniformly distributed in the plurality of heat exchange tubes 300, and the heat exchange performance of the heat exchanger 001 can be improved.

In some embodiments, as shown in fig. 2 and 3, the first assembly 600 further includes a support plate 630, one side portion of the support plate 630 in the length direction of the heat exchange tube 300 (e.g., the right side portion of the support plate 630 in fig. 2) abuts against the first member 610, and the other side portion of the support plate 630 in the length direction of the heat exchange tube 300 (e.g., the left side portion of the support plate 630 in fig. 2) abuts against the inner circumferential surface of the first circumferential wall 110. That is, the right side portion of the support plate 630 abuts against the left side surface of the first member 610, and the right side portion of the support plate 630 is connected to the left side surface of the first member 610, the left side portion of the support plate 630 abuts against the inner circumferential surface of the first circumferential wall 110, and the left side portion of the support plate 630 is connected to the inner circumferential surface of the first circumferential wall 110. Thus, the support plate 630 supports and positions the first member 610, so that the position of the first member 610 is stable and reliable.

In some embodiments, as shown in fig. 2-5, an end of the at least one protrusion 620 facing away from the first member 610 in the length direction of the first heat exchange tube 300 (e.g., a right end of the protrusion 620 in fig. 2) abuts against the inner circumferential surface of the first circumferential wall 110. The boss 620 has a ninth through hole 621 penetrating the boss 620 in the length direction of the first header 100. That is, the right end of at least one boss 620 abuts against the inner circumferential surface of the first circumferential wall 110, and the boss 620 has a ninth through hole 621 penetrating the boss 620 in the up-down direction. Thus, the protrusion 620 supports and positions the first member 610, so that the position of the first member 610 is stable and reliable, and the refrigerant can flow through the protrusion 620 through the ninth through hole 621, thereby facilitating uniform distribution of the refrigerant in the heat exchange tube 300. Specifically, the ninth through holes 621 are plural, and the plural ninth through holes 621 are arranged at intervals in the front-rear direction.

Further, as shown in fig. 5 and 6, a portion of the at least one protruding portion 620 facing away from one end of the first member 610 in the length direction of the first heat exchange tube 300 abuts against the inner peripheral surface of the first peripheral wall 110. The protrusion 620 has a gap between the remaining portion of the end of the first heat exchange tube 300 facing away from the first member 610 in the length direction and the inner circumferential surface of the first circumferential wall 110. Specifically, both side portions of the right end of the at least one protruding portion 620 are abutted against the inner peripheral surface of the first peripheral wall 110, and a first gap 622 is provided between the middle portion of the protruding portion 620 and the inner peripheral surface of the first peripheral wall 110. Alternatively, a middle portion of the right end of the at least one protruding portion 620 abuts against the inner peripheral surface of the first peripheral wall 110, and a second gap 623 is provided between both side portions of the protruding portion 620 and the inner peripheral surface of the first peripheral wall 110.

In some embodiments, as shown in fig. 7-11, the first piece 610 includes a first through hole 611 and a second through hole 612. The first through hole 611 penetrates the first member 610 along the length direction of the heat exchange tube 300 to communicate the first sub-channel 151 and the second sub-channel 152. The second through hole 612 penetrates the first member 610 along the length direction of the heat exchange tube 300 to communicate the first sub-channel 151 and the second sub-channel 152. The first through hole 611 is located at one side of one boss 620 in the length direction of the first header 100, and the second through hole 612 is located at the other side of the boss 620 in the length direction of the first header 100. That is, the second sub-channel 152, the third sub-channel 153, the first sub-channel 151, and the first through-hole 611 form one circulation flow channel. The second sub-channel 152, the second through-hole 612, the first sub-channel 151, and the fourth sub-channel 154 form another circulation flow channel. Specifically, the cross sections of the first through hole 611 and the second through hole 612 are both circular. It is understood that one end in the longitudinal direction of a part of the heat exchange tube 300 is located in the one circulation passage, and one end in the longitudinal direction of another part of the heat exchange tube 300 is located in the other circulation passage. Therefore, the refrigerant of the heat exchanger 001 according to the embodiment of the invention is distributed in the collecting pipe in a dispersed manner, which is beneficial to distributing the refrigerant in the plurality of heat exchange tubes 300, thereby being beneficial to improving the heat exchange performance of the heat exchanger 001.

Further, an end of the protruding portion 620 facing away from the first member 610 in the longitudinal direction of the first heat exchange tube 300 abuts against the inner circumferential surface of the first peripheral wall 110. That is, the boss 620 divides the first sub-channel 151 into two parts. That is, the second sub-channel 152, the third sub-channel 153, a portion of the first sub-channel 151, and the first through-hole 611 form the one circulation flow channel, and the second sub-channel 152, the second through-hole 612, another portion of the first sub-channel 151, and the fourth sub-channel 154 form the other circulation flow channel. Therefore, the refrigerant in the first sub-channel 151 and the refrigerant in the other first sub-channel 151 do not affect each other, which is beneficial to reducing the concentrated distribution of the refrigerant in the collecting pipe, thereby facilitating the distribution of the refrigerant in the first sub-channel 151 in the plurality of heat exchange tubes 300, and further facilitating the improvement of the heat exchange performance of the heat exchanger 001.

In some embodiments, as shown in fig. 9-11, the cross-sectional flow area of the first through-hole 611 is smaller than the cross-sectional flow area of the second through-hole 612. That is, the aperture of the first through hole 611 is smaller than that of the second through hole 612. It will be appreciated that the refrigerant in the second sub-channel 152 more readily enters the first sub-channel 151 from the second through-hole 612 without affecting the flow of refrigerant in the first sub-channel 151 from the first through-hole 611. Therefore, the one circulation channel and the other circulation channel of the heat exchanger 001 according to the embodiment of the invention can be relatively independent, so that the flow of the refrigerant in the collecting pipe is promoted, the refrigerant is favorably distributed in the plurality of heat exchange tubes 300, and the heat exchange performance of the heat exchanger 001 is favorably improved.

In some embodiments, as shown in fig. 11, the first through hole 611 and the second through hole 612 are spaced apart a distance in the width direction of the first member 610 (front-to-rear direction in fig. 9). That is, the first through hole 611 and the second through hole 612 are offset in the width direction of the first member 610, and the refrigerant flow path of the one circulation flow channel and the refrigerant flow path of the other circulation flow channel are also offset in the width direction of the first member 610. Therefore, the heat exchanger 001 according to the embodiment of the invention has at least two circulation channels for circulating the refrigerant therein, which is beneficial to reducing the local concentration of the refrigerant, promoting the distribution of the refrigerant in the plurality of heat exchange tubes 300, and further being beneficial to improving the heat exchange performance of the heat exchanger 001.

Specifically, the first through hole 611 is located at one side of the center line in the length direction of the first member 610, and the second through hole is located at the other side of the center line in the length direction of the first member 610.

In some embodiments, as shown in fig. 12-14, the first member 610 includes a third through hole 613, at least 2 protrusions 620 are adjacently disposed along the length direction of the first header 100, the third through hole 613 is located between the adjacently disposed at least 2 protrusions 620, and the third through hole 613 penetrates the first member 610 along the length direction of the heat exchange tube 300, the third through hole 613 being a plurality. That is, the third through-hole 613 is located between the third sub-channel 153 and the fourth sub-channel 154. It will be appreciated that a major portion of the refrigerant in the second sub-passage 152 can enter the first sub-passage 151 through the third sub-passage 153, and a minor portion of the refrigerant in the second sub-passage 152 can enter the first sub-passage 151 through the third through-hole 613 at a location where the third sub-passage 153 is not reached. Therefore, the heat exchanger 001 according to the embodiment of the invention is beneficial to the sufficient flow of the refrigerant in the collecting pipe, so that the refrigerant can be distributed in the plurality of heat exchange tubes 300, and further the heat exchange performance of the heat exchanger 001 is beneficial to improvement.

Specifically, the plurality of third through holes 613 are arranged at intervals along the length direction of the first header 100, and the plurality of third through holes 613 and the plurality of bosses 620 are alternately arranged along the length direction of the first header 100. That is, one third through hole 613 is provided between two adjacent boss portions 620 along the length direction of the first header 100, and one boss portion 620 is provided between two adjacent third through holes 613 along the length direction of the first header 100.

In some embodiments, as shown in fig. 2, 3, 7, 8, 12 and 13, the heat exchanger 001 further includes a first partition 140, the first partition 140 partitions the first channel 120 into a third channel 150 and a fourth channel 160, the third channel 150 includes a first sub-channel 151, a second sub-channel 152, a third sub-channel 153 and a fourth sub-channel 154, the first partition 140 includes a fourth through hole 141 penetrating the first partition 140 in a length direction of the first header 100, and the fourth through hole 141 communicates with the second sub-channel 152 and the fourth channel 160. It will be appreciated that the refrigerant in the fourth passage 160 is injected into the second sub-passage 152 through the fourth through-hole 141 so that the refrigerant in the second sub-passage 152 enters the first sub-passage 151 through the third sub-passage 153. Thus, most of the refrigerant in the second sub-channel 152 can enter the first sub-channel 151 through the third sub-channel 153, which is beneficial to the flow of the refrigerant in the collecting pipe, so as to be distributed in the plurality of heat exchange tubes 300, and further is beneficial to improving the heat exchange performance of the heat exchanger 001.

In some embodiments, as shown in fig. 2-23, the third sub-channel 153 is formed between one end of the first member 610 in the length direction and the first end cap 130 of one end of the first header 100 in the length direction, and the fourth sub-channel 154 is formed between the other end of the first member 610 in the length direction and the first partition 140. Therefore, the refrigerant can circulate in the first sub-channel 151 and the second sub-channel 152, which is beneficial to uniform distribution of the refrigerant and further beneficial to improvement of heat exchange performance of the heat exchanger 001.

Specifically, a gap is provided between one end of the first member 610 in the length direction and the first end cap 130 of one end of the first header 100 in the length direction, so that the gap forms the third sub-channel 153. Alternatively, a portion of one end of the first member 610 in the length direction is abutted against the first end cap 130 of one end of the first header 100 in the length direction, and the remaining portion of one end of the first member 610 in the length direction is spaced from the first end cap 130 of one end of the first header 100 in the length direction, so that the gap forms the third sub-channel 153.

The portion of the other end of the first member 610 in the length direction abuts against the first partition 140, and a gap is provided between the remaining portion of the other end of the first member 610 in the length direction and the first partition 140, so that the gap forms the fourth sub-passage 154. Alternatively, the other end of the first member 610 in the length direction has a through hole penetrating the first member 610 in the length direction of the heat exchange tube 300, the through hole forming the fourth sub-passage 154.

In some embodiments, as shown in fig. 15-19, the heat exchanger 001 further comprises a second piece 640. The second member 640 is located in the fourth channel 160, and the second member 640 partitions the fourth channel 160 into a fifth sub-channel 161 and a sixth sub-channel 162 arranged side by side in the length direction of the heat exchange tube 300. At least a portion of one end of the heat exchange tube 300 in the length direction is located in the fifth sub-channel 161. The second member 640 includes a fifth through hole 641 penetrating the second member 640 in the length direction of the heat exchange tube 300, the fifth through hole 641 communicating the fifth sub-passage 161 and the sixth sub-passage 162. That is, the second member 640 partitions the fourth channel 160 into the fifth and sixth sub-channels 161 and 162 within the fourth channel 160, and the second member 640 has a fifth through hole 641 penetrating the second member 640. The fifth sub-passage 161 and the sixth sub-passage 162 are arranged side by side in the length direction of the heat exchange tube 300, and the fifth sub-passage 161 and the sixth sub-passage 162 communicate through the fifth through-hole 641. Specifically, the second member 640 and the first member 610 may be integrally formed or may be separately formed.

It will be appreciated that the second member 640 and the first member 610 separate the first channel 120 into a first portion including the fifth sub-channel 161 and the first sub-channel 151 and a second portion including the sixth sub-channel 162 and the second sub-channel 152. The refrigerant enters the heat exchange tube 300 through the second portion after passing from the first portion to the second portion. Specifically, most of the refrigerant enters the second sub-passage 152 from the sixth sub-passage 162, the refrigerant in the second sub-passage 152 re-enters the first sub-passage 151, the refrigerant in the first sub-passage 151 is uniformly distributed into the heat exchange tube 300, and the remaining refrigerant in the first sub-passage 151 is circulated again into the second sub-passage 152. A small portion of the refrigerant enters the fifth sub-passage 161 from the sixth sub-passage 162 and the refrigerant in the fifth sub-passage 161 is uniformly distributed into the heat exchange tubes 300. The refrigerant circulates in the first channel 120, which is advantageous for uniform distribution of the refrigerant in the heat exchange tube 300, and thus for improvement of heat exchange performance of the heat exchanger 001.

In some embodiments, as shown in fig. 20-23, the heat exchanger 001 further comprises a second separator 170. The second separator 170 separates the first sub-channel 151 into a seventh sub-channel 155 and an eighth sub-channel 156 in the length direction of the first header 100, and the second separator 170 separates the second sub-channel 152 into a ninth sub-channel 157 and a tenth sub-channel 158 in the length direction of the first header 100. The second separator 170 includes a sixth through hole 171 penetrating the second separator 170 in the length direction of the first header 100, and the sixth through hole 171 communicates the ninth sub-passage 157 and the tenth sub-passage 158. The first member 610 includes a seventh through hole 614 penetrating the first member 610 in the length direction of the heat exchange tube 300, and the seventh through hole 614 communicates the seventh sub-passage 155 and the ninth sub-passage 157. The first member 610 further includes an eighth through hole 615 penetrating the first member 610 in the length direction of the heat exchange tube 300, the eighth through hole 615 communicating the eighth sub-passage 156 and the tenth sub-passage 158.

That is, the ninth sub-passage 157, the seventh through-hole 614, the seventh sub-passage 155, and the fourth sub-passage 154 form one circulation flow passage. The tenth sub-passage 158, the third sub-passage 153, the first sub-passage 151, and the eighth through-hole 615 form another circulation flow passage. It is understood that one end in the longitudinal direction of a part of the heat exchange tube 300 is located in the one circulation passage, and one end in the longitudinal direction of another part of the heat exchange tube 300 is located in the other circulation passage.

Specifically, the refrigerant enters the ninth sub-passage 157 from the fourth passage 160, and a part of the refrigerant in the ninth sub-passage 157 circulates in the one circulating passage. Another part of the refrigerant in the ninth sub-passage 157 enters the tenth sub-passage 158, and the refrigerant in the tenth sub-passage 158 circulates in the other circulation flow passage. Therefore, the refrigerant of the heat exchanger 001 flows in the collecting pipe to be intensified, so that the refrigerant is distributed in the heat exchange pipe 300 more uniformly, and the heat exchange performance of the heat exchanger 001 is improved.

In some embodiments, as shown in fig. 1-23, the heat exchanger 001 further includes an inlet/outlet tube, which includes a first inlet/outlet tube 510 and a second inlet/outlet tube 520, where the first inlet/outlet tube 510 and the second inlet/outlet tube 520 are connected to the second header 200; or, the first inlet and outlet pipe 510 is connected to the first header 100, and the second inlet and outlet pipe 520 is connected to the second header 200.

Specifically, as shown in fig. 1 to 3, 7, 8, 12, 13, 20 and 21, the first inlet and outlet pipe 510 and the second inlet and outlet pipe 520 are connected to the second header 200. The second header 200 includes a third partition 240, and the third partition 240 partitions the second channel 220 into a fifth channel 221 and a sixth channel 222, and the fifth channel 221 and the sixth channel 222 are arranged side by side in the length direction of the second header 200. The first inlet and outlet pipe 510 communicates with the fifth passage 221, and the second inlet and outlet pipe 520 communicates with the sixth passage 222. Therefore, the flow path of the refrigerant of the heat exchanger 001 is increased, which is beneficial to improving the heat exchange performance of the heat exchanger 001.

As shown in fig. 15 and 16, the first inlet and outlet pipe 510 is connected to the first header 100, and the second inlet and outlet pipe 520 is connected to the second header 200. The refrigerant enters the first header 100 from the first inlet and outlet pipe 510, and the refrigerant is distributed into the heat exchange pipes 300 in the first header 100. The refrigerant heat-exchanged in the heat exchange tube 300 is converged into the second header 200, and the refrigerant in the second header 200 flows out of the second inlet and outlet tube 520. Therefore, the heat exchanger 001 according to the embodiment of the invention is beneficial to fully exchanging heat of the refrigerant in the heat exchanger, promoting the uniform distribution of the refrigerant in the plurality of heat exchange tubes 300 and improving the heat exchange performance of the heat exchanger 001.

Some specific exemplary heat exchangers 001 according to the present invention are described below with reference to fig. 1-23.

Example 1

As shown in fig. 1 to 6, the heat exchanger 001 includes a first header 100, a second header 200, a plurality of heat exchange tubes 300, a plurality of fins 400, a first assembly 600, a first separator 140, a first inlet and outlet tube 510, and a second inlet and outlet.

The first header 100 includes a first peripheral wall 110 and a first channel 120 surrounded by the first peripheral wall 110, and a first end cap 130 is provided at an upper end of the first header 100 and a lower end of the first header 100. The second header 200 includes a second peripheral wall 210 and a second channel 220 surrounded by the second peripheral wall 210, and both an upper end of the second header 200 and a lower end of the second header 200 are provided with a second end cap 230.

The first inlet and outlet pipe 510 and the second inlet and outlet pipe 520 are connected to the second header 200. The second header 200 includes a third partition 240, and the third partition 240 partitions the second channel 220 into a fifth channel 221 and a sixth channel 222, and the fifth channel 221 and the sixth channel 222 are arranged side by side in the length direction of the second header 200. The first inlet and outlet pipe 510 communicates with the fifth passage 221, and the second inlet and outlet pipe 520 communicates with the sixth passage 222.

The outer circumferential profile of the cross section of the heat exchange tube 300 is generally flat. The left end of the heat exchange tube 300 is connected to the first header 100, and the right end of the heat exchange tube 300 is connected to the second header 200 to communicate the first header 100 and the second header 200. The plurality of heat exchange tubes 300 are arranged at intervals up and down, the plurality of fins 400 are arranged at intervals left and right, and the fins 400 pass through the plurality of heat exchange tubes 300 in the up-down direction.

The first assembly 600 is positioned within the first channel 120, the first assembly 600 including a first member 610. The first channel 120 includes a first sub-channel 151 and a second sub-channel 152, the first sub-channel 151 being located on the right side of the first member 610 and the second sub-channel 152 being located on the left side of the first member 610.

The first sub-channel 151 communicates with the heat exchange tube 300, and at least a portion of the left end of the heat exchange tube 300 is located within the first sub-channel 151.

The first member 610 includes a first side portion facing the first sub-channel 151, the first side portion including a protrusion 620 located in the first sub-channel 151, the protrusion 620 having a gap from an inner circumferential surface of the first peripheral wall 110 surrounding the first sub-channel 151 in a left-right direction, the protrusion 620 being plural.

The first passage 120 further includes a third sub-passage 153 and a fourth sub-passage 154, the third sub-passage 153 communicating with the first sub-passage 151 and the second sub-passage 152, and the fourth sub-passage 154 communicating with the first sub-passage 151 and the second sub-passage 152 to form at least one circulation flow passage within the first passage 120.

The third sub-channel 153 is located at the upper end of the first member 610 and the fourth sub-channel 154 is located at the lower end of the first member 610.

The plurality of bosses 620 are spaced apart in the length direction of the first header 100, and at least one heat exchange tube 300 is located between two bosses 620 adjacent in the length direction of the first header 100.

The at least one heat exchange tube 300 has a minimum distance d1 from the first side, and the adjacent two protrusions 620 have a minimum distance d2 from the inner circumferential surface of the first circumferential wall 110 surrounding the first sub-channel 151 in the length direction of the heat exchange tube 300, and d1 is greater than d2.

The first assembly 600 further includes a support plate 630, a right side portion of the support plate 630 being in contact with the first member 610, and a left side portion of the support plate 630 being in contact with an inner circumferential surface of the first circumferential wall 110.

A right end portion of the at least one protruding portion 620 abuts against an inner circumferential surface of the first circumferential wall 110. The remaining portion of the right end of the protruding portion 620 has a gap with the inner circumferential surface of the first circumferential wall 110. The boss 620 has a ninth through hole 621 penetrating the boss 620 in the length direction of the first header 100.

The first partition 140 divides the first channel 120 into a third channel 150 and a fourth channel 160, the third channel 150 includes a first sub-channel 151, a second sub-channel 152, a third sub-channel 153 and a fourth sub-channel 154, the first partition 140 includes a fourth through hole 141 penetrating the first partition 140 along the length direction of the first header 100, and the fourth through hole 141 communicates with the second sub-channel 152 and the fourth channel 160.

The third sub-channel 153 is formed between the upper end of the first member 610 in the length direction and the first end cap 130 of the upper end of the first header 100, and the fourth sub-channel 154 is formed between the lower end of the first member 610 and the first partition 140.

Example 2

As shown in fig. 7 to 11, unlike example 1, the first member 610 includes a first through hole 611 and a second through hole 612. The first through hole 611 penetrates the first member 610 along the length direction of the heat exchange tube 300 to communicate the first sub-channel 151 and the second sub-channel 152. The second through hole 612 penetrates the first member 610 along the length direction of the heat exchange tube 300 to communicate the first sub-channel 151 and the second sub-channel 152. The first through hole 611 is located at one side of one boss 620 in the length direction of the first header 100, and the second through hole 612 is located at the other side of the boss 620 in the length direction of the first header 100. The protruding portion 620 abuts against the inner circumferential surface of the first peripheral wall 110 at an end thereof facing away from the first member 610 in the longitudinal direction of the first heat exchange tube 300.

The cross-sectional flow area of the first through-hole 611 is smaller than the cross-sectional flow area of the second through-hole 612. The first through hole 611 and the second through hole 612 are spaced apart from each other in the front-rear direction by a certain distance. The first through hole 611 is located at one side of the center line in the length direction of the first member 610, and the second through hole is located at the other side of the center line in the length direction of the first member 610.

Example 3

As shown in fig. 12 to 14, unlike example 1, the first member 610 includes a third through hole 613, at least 2 bosses 620 are adjacently disposed along the length direction of the first header 100, the third through hole 613 is located between the adjacently disposed at least 2 bosses 620, and the third through hole 613 penetrates the first member 610 along the length direction of the heat exchange tube 300, the third through hole 613 being a plurality. The third through-hole 613 is located between the third sub-channel 153 and the fourth sub-channel 154.

The plurality of third through holes 613 are arranged at intervals along the length direction of the first header 100, and the plurality of third through holes 613 and the plurality of bosses 620 are alternately arranged along the length direction of the first header 100.

Example 4

As shown in fig. 20 to 23, unlike example 2, the heat exchanger 001 further includes a second separator 170. The second separator 170 separates the first sub-channel 151 into a seventh sub-channel 155 and an eighth sub-channel 156 in the length direction of the first header 100, and the second separator 170 separates the second sub-channel 152 into a ninth sub-channel 157 and a tenth sub-channel 158 in the length direction of the first header 100. The second separator 170 includes a sixth through hole 171 penetrating the second separator 170 in the length direction of the first header 100, and the sixth through hole 171 communicates the ninth sub-passage 157 and the tenth sub-passage 158. The first member 610 includes a seventh through hole 614 penetrating the first member 610 in the length direction of the heat exchange tube 300, and the seventh through hole 614 communicates the seventh sub-passage 155 and the ninth sub-passage 157. The first member 610 further includes an eighth through hole 615 penetrating the first member 610 in the length direction of the heat exchange tube 300, the eighth through hole 615 communicating the eighth sub-passage 156 and the tenth sub-passage 158.

The ninth sub-passage 157, the seventh through-hole 614, the seventh sub-passage 155, and the fourth sub-passage 154 form one circulation flow passage. The tenth sub-passage 158, the third sub-passage 153, the first sub-passage 151, and the eighth through-hole 615 form another circulation flow passage.

Example 5

As shown in fig. 15 to 19, the heat exchanger 001 includes a first header 100, a second header 200, a plurality of heat exchange tubes 300, a plurality of fins 400, a first module 600, a first separator 140, a first inlet and outlet tube 510, and a second inlet and outlet.

The first inlet and outlet pipe 510 is connected to the first header 100, and the second inlet and outlet pipe 520 is connected to the second header 200.

The first assembly 600 is positioned within the first channel 120, the first assembly 600 including a first member 610 and a second member 640. The first channel 120 includes a first sub-channel 151 and a second sub-channel 152, the first sub-channel 151 being located on the right side of the first member 610 and the second sub-channel 152 being located on the left side of the first member 610.

The second member 640 is located in the fourth channel 160, the second member 640 separates the fourth channel 160 into a fifth sub-channel 161 and a sixth sub-channel 162 arranged side by side, with the fifth sub-channel 161 being located on the right and the sixth sub-channel 162 being located on the left. At least a portion of one end of the heat exchange tube 300 in the length direction is located in the fifth sub-channel 161. The second member 640 includes a fifth through hole 641 penetrating the second member 640 in the length direction of the heat exchange tube 300, the fifth through hole 641 communicating the fifth sub-passage 161 and the sixth sub-passage 162. The first inlet and outlet pipe 510 communicates with the sixth sub-passage 162, and the second inlet and outlet pipe 520 communicates with the second passage 220.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., 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, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. A heat exchanger, comprising:

the first piece comprises a first side part and a third through hole, the first side part faces the first sub-channel, the first side part comprises a protruding part located in the first sub-channel, gaps are reserved between the protruding part and the inner peripheral surface of the first peripheral wall surrounding the first sub-channel in the length direction of the heat exchange tube, the protruding part is multiple, one end, away from the first piece, of the protruding part in the length direction of the heat exchange tube abuts against the inner peripheral surface of the first peripheral wall, the protruding part is provided with a ninth through hole penetrating through the protruding part in the length direction of the first collecting pipe, at least 2 protruding parts are adjacently arranged in the length direction of the first collecting pipe, the third through hole is located between the at least 2 protruding parts in the adjacent arrangement, and the third through hole penetrates through the first piece in the length direction of the heat exchange tube and is multiple;

2. The heat exchanger of claim 1, wherein a plurality of the bosses are spaced apart in a length direction of the first header, and at least one of the heat exchange tubes is located between two bosses adjacent in the length direction of the first header.

3. The heat exchanger according to claim 2, wherein a minimum distance of the at least one heat exchange tube from the first side portion is d1, a minimum distance of the adjacent two convex portions from an inner peripheral surface of the first peripheral wall surrounding the first sub-passage in a length direction of the heat exchange tube is d2, and d1 is larger than d2.

4. The heat exchanger of claim 1, wherein the first member includes a first through hole penetrating the first member in a length direction of the heat exchange tube to communicate the first sub-passage and the second sub-passage, and a second through hole penetrating the first member in a length direction of the heat exchange tube to communicate the first sub-passage and the second sub-passage, the first through hole being located on one side of the boss in the length direction of the first header, and the second through hole being located on the other side of the boss in the length direction of the first header.

5. The heat exchanger of claim 4, wherein the first through-hole has a cross-sectional flow area that is smaller than the second through-hole.

6. The heat exchanger of any one of claims 1-5, further comprising a first partition separating the first channel into a third channel and a fourth channel, the third channel comprising the first sub-channel and the second sub-channel, the first partition including a fourth through-hole extending through the first partition along a length of the first header, the fourth through-hole communicating the second sub-channel and the fourth channel.

7. The heat exchanger of claim 6, further comprising a second member located in the fourth channel, the second member separating the fourth channel into a fifth sub-channel and a sixth sub-channel arranged side by side in a length direction of the heat exchange tube, at least a portion of one end of the heat exchange tube in the length direction being located in the fifth sub-channel, the second member including a fifth through hole penetrating through the second member in the length direction of the heat exchange tube, the fifth through hole communicating the fifth sub-channel and the sixth sub-channel.

8. The heat exchanger according to any one of claims 1 to 5, 7, further comprising a second separator plate that separates the first sub-passage in the length direction of the first header into a seventh sub-passage and an eighth sub-passage, the second separator plate separating the second sub-passage in the length direction of the first header into a ninth sub-passage and a tenth sub-passage, the second separator plate including a sixth through-hole that penetrates the second separator plate in the length direction of the first header, the sixth through-hole communicating with the ninth sub-passage and the tenth sub-passage, the first member including a seventh through-hole that penetrates the first member in the length direction of the heat exchange tube, the seventh through-hole communicating with the seventh sub-passage and the ninth sub-passage, the first member further including an eighth through-hole that penetrates the first member in the length direction of the heat exchange tube, the eighth through-hole communicating with the eighth sub-passage and the tenth sub-passage.

9. The heat exchanger of claim 6, further comprising an inlet and outlet tube comprising a first inlet and outlet tube and a second inlet and outlet tube, the first inlet and outlet tube and the second inlet and outlet tube being connected to the second header; or the first inlet and outlet pipe is connected with the first collecting pipe, and the second inlet and outlet pipe is connected with the second collecting pipe.

10. The heat exchanger according to any one of claims 1 to 5, 7, and 9, wherein the first module further includes a support plate, one side portion of the support plate in the length direction of the heat exchange tube being in abutment with the first member, the other side portion of the support plate in the length direction of the heat exchange tube being in abutment with the inner peripheral surface of the first peripheral wall.