CN216159701U

CN216159701U - Heat exchanger

Info

Publication number: CN216159701U
Application number: CN202121881620.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-04-01
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses a heat exchanger, which comprises a first side plate, a second side plate, a core body, a first interface part, a second interface part, a first pipe and a first partition part, wherein the core body is positioned between the first side plate and the second side plate, the first interface part and the second interface part are positioned between the first side plate and the second side plate, the core body comprises a plurality of second heat exchange plates which are stacked on the first heat exchange plate, each second heat exchange plate is provided with a first corner hole and a second corner hole, part of through holes of the first heat exchange plate and the first corner holes of the second heat exchange plates correspondingly form a first pore channel, the second corner holes of the second heat exchange plates correspondingly form at least part of a second pore channel, the first pore channel is divided into a first sub-channel and a second sub-channel by the first partition part, the first pipe is communicated with the second sub-channel through the first sub-channel, the second pore channel is communicated with the flow cavity of the first interface part, and the flow cavity of the second interface part is communicated with the second sub-channel; this is advantageous in saving the installation space required for the heat exchanger.

Description

Heat exchanger

Technical Field

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

Background

The heat exchanger can be applied to a heat management system, the heat exchanger is formed by stacking a plurality of heat exchange plates, two mutually isolated heat exchange fluids flow in the heat exchanger, and the two heat exchange fluids can exchange heat in the heat exchanger.

Generally, a heat exchange fluid enters from one side of a heat exchanger and then exits from the other side of the heat exchanger, and corresponding connecting pipelines are required on both sides of the heat exchanger, so that the installation space required by the heat exchanger is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat exchanger, which is beneficial to saving the installation space required by the heat exchanger.

The embodiment of the utility model provides a heat exchanger, which comprises a first side plate, a second side plate and a core body positioned between the first side plate and the second side plate, wherein the core body comprises a plurality of stacked heat exchange plates, each heat exchange plate comprises a first heat exchange plate and a second heat exchange plate group, the first heat exchange plate is positioned between the second heat exchange plate group and the first side plate, each second heat exchange plate group comprises a plurality of stacked second heat exchange plates, each second heat exchange plate is provided with a first corner hole, and the first corner holes of the plurality of second heat exchange plates correspond to at least part of a first pore channel;

the heat exchanger also comprises a first tube and a first partition part, wherein part of the first tube is positioned on one side of the first heat exchange plate, which faces away from the core body, the first tube is in sealed connection with the first partition part, the first partition part divides the first pore passage into a first sub-passage and a second sub-passage, the first sub-passage is adjacent to the second side plate, the second sub-passage is adjacent to the first side plate, at least part of the first tube is positioned in the second sub-passage, and the flow cavity of the first tube is communicated with the first sub-passage;

the heat exchanger also comprises a first connecting port and a second connecting port which are arranged at intervals and are isolated from each other, at least part of the first connecting port and at least part of the second connecting port are positioned on one side, away from the core, of the first side plate, the circulation cavity of the first connecting port is communicated with the circulation cavity of the first pipe, and the circulation cavity of the second connecting port is communicated with the second sub-channel.

According to the heat exchanger provided by the embodiment of the utility model, the heat exchanger comprises a first pipe, a first partition part, a first connecting part and a second connecting part, the first partition part divides a first pore passage into a first sub-passage and a second sub-passage, so that the flow-through chamber of the first connection part communicates with the first sub-channel via the flow-through chamber of the first tube, the second connection part communicates with the second sub-channel, when the heat exchange fluid enters the heat exchanger through one of the first sub-channel and the second sub-channel and leaves the heat exchanger through the other, the heat exchanger provided by the embodiment of the utility model is convenient for heat exchange fluid to enter and leave the heat exchanger from one side where the first pore passage is located, and the first interface part and the second interface part are conveniently arranged on one side where the first pore passage is located in a centralized manner.

Drawings

FIG. 1 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the heat exchanger shown in FIG. 1;

fig. 3 is an exploded view of a second heat exchanger plate group according to an embodiment of the present invention;

FIG. 4 is a schematic front view of the heat exchanger shown in FIG. 1;

FIG. 5 is a schematic cross-sectional view of the heat exchanger shown in FIG. 4 taken along the line A-A;

FIG. 6 is an enlarged schematic view of FIG. 5 at Q1;

FIG. 7 is a schematic cross-sectional view of the heat exchanger shown in FIG. 4 taken along the direction B-B;

FIG. 8 is a schematic view of a first heat exchange plate according to one embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of the heat exchanger shown in FIG. 4 taken along the direction C-C;

FIG. 10 is an enlarged schematic view of FIG. 9 at Q2;

FIG. 11 is a schematic cross-sectional view of the heat exchanger shown in FIG. 4 taken along the direction D-D;

FIG. 12 is a schematic cross-sectional view of the heat exchanger shown in FIG. 4 taken along the direction E-E;

FIG. 13 is a schematic view of a second heat exchange plate according to another embodiment of the present invention;

FIG. 14 is a schematic structural view illustrating the flow directions of two heat exchange fluids in a heat exchanger according to an embodiment of the present invention;

fig. 15 is an exploded view of a second heat exchanger plate group according to another embodiment of the present invention;

fig. 16 is a partial structural schematic view of a second heat exchange plate group according to still another embodiment of the present invention;

FIG. 17 is an exploded view of a heat exchanger according to another embodiment of the present invention;

FIG. 18 is a partial schematic view of the heat exchanger shown in FIG. 17;

FIG. 19 is another partial schematic view of the heat exchanger shown in FIG. 17;

FIG. 20 is a schematic view of a further alternative partial construction of the heat exchanger shown in FIG. 17;

FIG. 21 is a schematic structural view of the second heat exchange plate shown in FIG. 17;

FIG. 22 is a front view schematic of the heat exchanger shown in FIG. 17;

FIG. 23 is a schematic view of the structure of FIG. 22 taken along the direction F-F;

FIG. 24 is an enlarged schematic view of FIG. 23 at Q3;

fig. 25 is a schematic view of the structure of fig. 22 taken along the direction G-G.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Herein, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

As shown in fig. 1 to 25, an embodiment of the present invention provides a heat exchanger 1, which includes a first side plate 101, a second side plate 102, and a core 100 located between the first side plate 101 and the second side plate 102, where the core 100 forms a flow channel for flowing a heat exchange fluid, the heat exchange fluid may include two heat exchange fluids, and the heat exchange fluid may also be the same medium, and accordingly, the core 100 may form two flow channels, which will be described below with reference to two heat exchange media. Two heat exchange fluids circulate in the corresponding flow channels respectively and can realize heat exchange; alternatively, the two heat exchange fluids may be cooling water and oil, respectively. In some embodiments, the heat exchanger 1 may further include a first connection portion 611, a second connection portion 621, and a flow-through block 63, wherein one heat exchange fluid can enter and exit the heat exchanger 1 through the first connection portion 611 and the second connection portion 621, and the other heat exchange fluid can enter and exit the heat exchanger 1 through the flow-through block 63.

As shown in fig. 2 to 8, the core 100 includes a plurality of heat exchange plates stacked between a first side plate 101 and a second side plate 102, and the stacking direction of the plates is the Z direction in fig. 2. An inter-plate channel is formed between the adjacent heat exchange plates, and heat exchange fluid can flow in the inter-plate channel. Wherein, the heat exchange plate includes a first heat exchange plate 10 and a second heat exchange plate group 201 which are stacked, the first heat exchange plate 10 is located between the second heat exchange plate group 201 and the first edge plate 101, the second heat exchange plate group 201 includes a plurality of second heat exchange plates 20 which are stacked, each second heat exchange plate 20 has a first corner hole 21 and a second corner hole 22, along the length direction X of the heat exchanger, the first corner hole 21 and the second corner hole 22 are located at two sides of the second heat exchange plate 20, the first heat exchange plate 10 has a plurality of through holes TH, a part of the through holes TH correspond to the first corner holes 21 of the plurality of second heat exchange plates 20 to form a first hole channel 31, the second corner holes 22 of the plurality of second heat exchange plates 20 correspondingly communicate to form at least a part of a second hole channel 32, for example, in fig. 2 and 8, the first heat exchange plate 10 has three through holes TH, two of which correspond to the first corner holes 21, that is the positive projection of the two through holes TH on the first edge plate 101 and the positive projection of the first corner holes TH on the first edge plate 101 to the first edge plate 101 At this time, the two through holes TH and the first corner holes 21 of the plurality of second heat exchange plates 20 form the first hole channels 31, it can be understood that the number of the through holes on the first heat exchange plate 10 can be set according to the user requirement, for example, one through hole on the first heat exchange plate 10 and the first corner hole 21 are correspondingly communicated to form the first hole channel 31. It is understood that the orthographic projection of each hole herein refers to the area bounded by the orthographic projections of the walls of the hole of each hole.

With further reference to fig. 5 and 6, the heat exchanger may further include a first tube 41 and a first separating portion 51, a portion of the first tube 41 is connected to a side of the first heat exchange plate 10 facing away from the second side plate 102, and at least a portion of the first tube 41 is located in the first porthole 31, alternatively, the first tube 41 may be connected to the first heat exchange plate 10 or the first side plate 101, and the first separating portion 51 is connected to one of the second heat exchange plates 20 in a sealing manner and forms a sealing surface with the first tube 41, as shown in fig. 3 and 6, at least a portion of the first separating portion 51 may extend from an edge of the first corner hole 21 of one of the second heat exchange plates 20 into the first porthole 31 and forms a sealing surface with the first tube 41, and in a specific implementation, the first separating portion 51 may be integrally formed with the second heat exchange plate 20 or fixedly welded thereto. Based on this, the first duct 31 is divided into a first sub-passage 311 and a second sub-passage 312 by the first partition part 51, the first sub-passage 311 is disposed adjacent to the second side plate 102, the second sub-passage 312 is disposed adjacent to the first side plate 101, the circulation chamber of the first tube 41 is communicated with the second sub-passage 312 by the first sub-passage 311, the plate-to-plate passages, and the second duct 32, at this time, the first duct 31, the second duct 32, and the plate-to-plate passages communicated with the first duct 31 and the second duct 32 form a first flow passage, and a first heat exchange fluid, such as a cooling liquid like cooling water, can flow through the first flow passage.

With further reference to fig. 1 to 6, in some embodiments, the heat exchanger 1 further includes a first connecting portion 611 and a second connecting portion 621, which are disposed at an interval and isolated from each other, at least a portion of the first connecting portion 611 and at least a portion of the second connecting portion 621 are both located on a side of the first side plate 101 facing away from the core, at least a portion of the first connecting portion 611 and at least a portion of the second connecting portion 621 may be arranged along a length direction X of the heat exchange plate, so as to facilitate installation of the first connecting portion 611 and the second connecting portion 621, a flow cavity of the first connecting portion 611 communicates with a flow cavity of the first tube 41, a flow cavity of the second connecting portion 621 communicates with the second sub-channel 42, and projects toward the first side plate 101 along a stacking direction of the heat exchange plate, a forward projection of the first connecting portion 611 and a forward projection of the second connecting portion 621 at least partially overlap with a forward projection of the first duct 31, so as to facilitate integration of the first connecting portion 611 and the second connecting portion 621 on a side of the first duct 31, compared with the case that the two connecting pipes are respectively arranged on two sides of the heat exchanger in the length direction X or the width direction Y, the heat exchanger provided by the embodiment of the utility model is beneficial to saving the installation space of the heat exchanger.

In a specific implementation, the heat exchanger may further include a first connection pipe 61 and a second connection pipe 62, the first connection part 611 is located at the first connection pipe 61 and adjacent to the first side plate 101, the second connection part 621 is located at the second connection pipe 62 and adjacent to the first side plate 101, the first connection part 611 and the second connection part 621 are arranged along a length direction X of the heat exchanger 1, the first connection part 611 is communicated with the first sub-channel 311 through a flow cavity of the first pipe 41, the second connection part 621 is communicated with the second sub-channel 312 and projects to the first side plate 101 along a stacking direction of the heat exchanger plate, and a forward projection of the first connection part 611 and a forward projection of the second connection part 621 are both located inside a forward projection of the first duct 31.

With further reference to fig. 1 to 6, the first edge plate 101 comprises a first connection hole 1011 and a second connection hole 1012, a portion of the first connection port 611 is inserted into the first connection hole 1011, a portion of the second connection port 621 is inserted into the second connection hole 1012, the flow-through chamber of the first connection port 611 is in communication with the first sub-passage 311 via the flow-through chamber of the first tube 41, and the flow-through chamber of the second connection port 621 is in communication with the second sub-passage 312.

Alternatively, as shown in fig. 1 to 7, the dimension of the first corner hole 21 in the length direction X of the heat exchange plate is larger than the dimension of the first corner hole 21 in the width direction Y of the heat exchange plate, and the center of the orthographic projection of the first tube 41 and the center of the orthographic projection of the first porthole 31 are eccentrically arranged as projected to the first side plate 101 in the stacking direction of the heat exchange plates. Through the arrangement, the local pressure drop of the heat exchange fluid when entering the heat exchanger and leaving the heat exchanger can be reduced, and compared with the concentric arrangement of the first pipe and the first pore passage 31, the heat exchanger provided by the embodiment of the utility model can enable the circulation space of the heat exchange fluid circulating in the second sub-passage 312 to be more concentrated, so that the pressure drop of the heat exchange fluid can be reduced, and the heat exchanger can be matched and installed with the positions of the first connector part 611 and the second connector part 621 conveniently, so that the structure of the heat exchanger can be simplified. In the embodiment of the present invention, the stacking direction of the heat exchange plates is parallel to the arrangement direction of the first side plate 101 and the second side plate 102.

Further referring to fig. 3 to 5, in some embodiments, the first corner hole 21 is a kidney-shaped long hole, that is, an orthographic projection of the first corner hole 21 on the first side plate 101 includes a first arc segment 211, a second arc segment 212, and a first connection segment 213 connected between the first arc segment 211 and the second arc segment 212, centers of circles of the first arc segment 211 and the second arc segment 212 are both located in a region where the first corner hole 21 is located, the first arc segment 211 and the second arc segment 212 are arranged along a length direction X of the heat exchange plate, the first connection segment 213 may be parallel to the length direction X of the heat exchange plate, the first tube 41 is coaxial with one of the first arc segment 211 and the second arc segment 212, and at this time, a center of an orthographic projection of the first tube 41 on the first side plate 101 and a center of an orthographic projection of the first duct 31 on the first side plate 101 are eccentrically disposed. The first corner hole 22 may be a circular hole or a long kidney-shaped hole, and the dimension of the first corner hole 22 along the length direction of the heat exchange plate may be smaller than or equal to the dimension of the first corner hole 22 along the width direction.

Alternatively, as shown in fig. 17 to 20, the hole wall of the first corner hole 21 includes a first section S1, a second section S2 and a third section S3, wherein the extending direction of the first section S1, the extending direction of the second section S2 and the extending direction of the third section S3 all intersect, so that the first corner hole 21 is a triangular hole, the hole wall of the second corner hole 22 includes a fourth section S4, a fifth section S5 and a sixth section S6, the extending direction of the fourth section S4, the extending direction of the fifth section S5 and the extending direction of the sixth section S6 all intersect, so that the second corner hole 22 is a triangular hole, optionally, the third section S3 and the sixth section S6 may be arranged parallel to each other, the second section S2 is adjacent to the edge of the length direction X of the heat exchange plate, and the first pipe 41 is arranged adjacent to the second section S2.

In the drawings of the present specification, an illustration of the flow direction of the first heat exchange fluid is shown by a solid straight line with arrows, and an illustration of the flow direction of the second heat exchange fluid is shown by a dashed straight line with arrows, it is understood that the flow directions of the first heat exchange fluid and the second heat exchange fluid may be reversed, i.e. rotated by 180 degrees.

When the heat exchanger comprises the first separating parts 51 according to any of the embodiments described above, the plate interspaces communicating with the first portholes 31 and the second portholes 32 are separated by means of the first separating parts 51 and the second heat exchanger plates 20 connected to the first separating parts 51 into first plate interspaces 35 and second plate interspaces 36, the first plate interspaces 35 are located between the second plate interspaces 36 and the second side plates 102, the flow direction of the heat transfer fluid flowing through the first plate interspaces 35 and the second plate interspaces 36 being opposite, and the first sub-passages 311 communicate with the second sub-passages 312 in turn via the first plate interspaces 35, the second portholes 32 and the second plate interspaces 36. Through the arrangement, the heat exchanger can realize double flows for the first heat exchange fluid, and the flow path of the first heat exchange fluid is favorably increased. It will be appreciated that the direction of flow of the first heat exchange fluid and the direction of flow of the second heat exchange fluid may also be reversed.

In order to facilitate the distribution of the heat exchange fluid in the heat exchanger and improve the heat exchange performance, further referring to fig. 1 to 7, in some embodiments, the first corner hole 21 and the second corner hole 22 are respectively disposed at two opposite corners of the length direction X of the second heat exchange plate 20, and the first duct 31 and the second duct 32 are respectively disposed at two opposite corners of the length direction X of the second heat exchange plate 20, so as to facilitate the diagonal flow of the first heat exchange fluid, wherein the dimension of the second corner hole 22 along the length direction X of the heat exchange plate is smaller than or equal to the dimension of the second corner hole 22 along the width direction Y of the heat exchange plate, as shown in fig. 3, the dimension of the second corner hole 22 along the length direction X of the heat exchange plate is smaller than the dimension of the second corner hole 22 along the width direction Y of the heat exchange plate, which facilitates the distribution of the first heat exchange fluid and improves the heat exchange performance.

To facilitate the installation of the first tubes 41, as further shown in fig. 1 to 7, in some embodiments, the through holes of the first heat exchange plate 10 include a first installation hole 11 and a first flow through hole 12, which are projected toward the first side plate 101 along the stacking direction of the heat exchange plates, at least a portion of the orthographic projection of the first installation hole 11 and at least a portion of the orthographic projection of the first flow through hole 12 are both located inside the orthographic projection of the first corner hole 21, and the first installation hole 11 communicates with the first hole 31, and the first flow through hole 12 communicates with the second sub-channel 312; the first pipe 41 includes a first flow pipe 412 and a first flange portion 411, an outer diameter of the first flange portion 411 is larger than an outer diameter of the first flow pipe 412, the first flange portion 411 may be located at one end of the first flow pipe 412 in a height direction and the first flange portion 411 is connected to a surface of the first heat exchange plate 10 facing the first porthole 101, and at least a portion of the first flow pipe 412 passes through the first mounting hole 11 and is located in the first porthole 31. Further, the first flow pipe 412 has a first opening 4121 located on the side away from the first flange 411, the first opening 4121 communicates with the first sub-passage 311, the first sub-passage 311 has a top end close to the first side plate 101, and the first opening 4121 is located close to the top end of the first sub-passage 311.

As shown in fig. 17 to 25, a heat exchanger according to another embodiment of the present invention is similar to the heat exchanger according to any of the above embodiments, except that the heat exchanger may further include a first adapter plate 104, the first adapter plate 104 is located on a side of the first edge plate 101 facing away from the core, and the first interface portion 611 and the second interface portion 621 are both connected to the first adapter plate 104. Specifically, the first adapter plate 104 includes a third connection hole 1041 and a fourth connection hole 1042, a portion of the first connection port 611 is inserted into the third connection hole 1041, a portion of the second connection port 621 is inserted into the fourth connection hole 1042, in this case, the first side plate 101 includes a second installation hole 1013 and a second flow through hole 1014 which are disposed at intervals, the flow cavity of the second connection port 621 communicates with the second sub passage 312 through the second flow through hole 1014, and is projected toward the first side plate 101 in the stacking direction of the heat exchange plates, at least a portion of the orthographic projection of the second installation hole 1013 and at least a portion of the orthographic projection of the second flow through hole 1014 are both located inside the orthographic projection of the first corner hole 21, the second flow through hole 1014 communicates with the second sub passage 312, the first tube 41 includes a second flow tube 414 and a second flange part 413 which are connected to each other, the second flange part 413 may be located at one end of the height direction of the second flow tube 414 and the second flange part 413 may be connected to the surface of the first side plate 101 facing the first adapter plate 104, at least a portion of the second flow tube 414 is positioned in the first bore 31 through the second mounting hole 1013. In this embodiment, the first corner hole 21 and the second corner hole may be triangular holes, or may be long waist-shaped holes.

Further, as shown in fig. 2 to 4 and fig. 9 to 11, in some embodiments, each second heat exchange plate 20 further has third corner holes 23 and fourth corner holes 24 spaced apart from each other, the third corner holes 23 of the stacked second heat exchange plates 20 and a part of the number of the through holes of the first heat exchange plate 10 form third hole passages 33, the fourth corner holes 24 of the stacked second heat exchange plates 20 correspondingly communicate with each other to form at least a part of fourth hole passages 34, for example, in fig. 8, the first heat exchange plate 10 has three through holes, one of which forms a part of the third hole passages 33, the fourth corner holes 24 of the stacked second heat exchange plates 20 correspondingly communicate with each other to form fourth hole passages 34, the first hole passages 31, the second hole passages 32 and the inter-plate passages communicating with the first hole passages 31 and the second hole passages 32 form first flow passages, the third hole passages 33, the fourth hole passages 34 and the inter-plate passages communicating with the third hole passages 33 and the fourth hole passages 34 form second flow passages, the second flow channel can be internally circulated with a second heat exchange fluid, and the second flow channel is isolated from the first flow channel.

Optionally, the third corner hole 23 and the first corner hole 21 may be located at two corners on the same side of the length direction X of the heat exchange plate, the fourth corner hole 24 and the second corner hole 22 are located at two corners on the same side of the length direction X of the second heat exchange plate 20, at this time, when the first corner hole 21 and the second corner hole 22 are located at two opposite corners of the second heat exchange plate 20, the third corner hole 23 and the fourth corner hole 24 are also located at two opposite corners of the second heat exchange plate 20, so that the diagonal flow of two heat exchange fluids is facilitated, and the heat exchange performance of the heat exchanger is improved.

In some embodiments, as shown in fig. 9 to 12, the heat exchanger 1 further includes a second tube 42 and a second partition portion 52, a portion of the second tube 42 is located on a side of the first heat exchange plate 10 facing away from the second side plate 102, at least a portion of the second tube 42 is located in the third hole passage 33, the second partition portion 52 is in sealing connection with one of the second heat exchange plates 20 and forms a sealing surface with the second tube 42, as shown in fig. 10, at least a portion of the second partition portion 52 extends from an edge of the third corner hole 23 of one of the second heat exchange plates 20 into the third hole passage 33 and forms a sealing surface with the second tube 42, and in a specific implementation, the second partition portion 52 may be integrally formed with the second heat exchange plate 20 or fixedly welded thereto. The third port channel 33 at this time is divided into a third sub-channel 331 adjacent to the second side plate 102 and a fourth sub-channel 332 adjacent to the first side plate 101 by the second dividing portion 52, the second tube 42 communicates with the fourth sub-channel 332 through the third sub-channel 331, the plate-to-plate channel, and the fourth port channel 34, and is projected toward the first side plate 101 in the stacking direction of the heat exchange plates, and the center of the orthographic projection of the second tube 42 may be disposed concentrically with the center of the orthographic projection of the third port channel 33.

Alternatively, as shown in fig. 13, when the projection is projected to the first side plate 101 along the stacking direction of the heat exchange plates, the dimension of the third hole 23 along the length direction X of the heat exchange plates is greater than the dimension of the third hole 23 along the width direction Y of the heat exchange plates, the center of the orthographic projection of the second tube 42 and the center of the orthographic projection of the third hole path 33 are eccentrically disposed, and when the center of the orthographic projection of the second tube 42 and the center of the orthographic projection of the third hole path 33 are eccentrically disposed, the specific disposition structure is similar to the eccentric disposition structure shown in fig. 6. Specifically, the orthographic projection of the third corner hole 23 on the first side plate 101 includes a third arc segment 231, a fourth arc segment 232 and a second connecting segment 233, the second connecting segment 233 is connected between the third arc segment 231 and the fourth arc segment 232, the circle centers of the third arc segment 231 and the fourth arc segment 232 are both located in the area where the third corner hole 23 is located, the extending direction of the second connecting segment 233 is parallel to the length direction of the second heat exchange plate 20, the third arc segment 231 and the fourth arc segment 232 are arranged along the length direction X of the heat exchange plate, and the orthographic projection of the second tube 42 on the first side plate 101 is coaxial with one of the third arc segment 231 and the fourth arc segment 232. Wherein, the dimension of the fourth angular hole 24 along the length direction X of the heat exchange plate is smaller than or equal to the dimension of the third angular hole 23 along the width direction Y of the heat exchange plate, as shown in fig. 13, the dimension of the third angular hole 23 along the length direction X of the heat exchange plate may be smaller than the dimension of the third angular hole 23 along the width direction Y of the heat exchange plate.

With further reference to fig. 2-4 and 8-12, in some embodiments, the third and fourth angled holes 23, 24 are disposed at two angular positions of the second heat exchange plate 20, the third and fourth portholes 33, 34 are disposed at two angular positions of the second heat exchange plate 20, the plate-to-plate passages communicating with the third sub-passages 331 and the fourth sub-passages 332 are separated into third plate-to-plate passages 37 and fourth plate-to-plate passages 38 by the second separating portions 52 and the second heat exchange plates 20 connected to the second separating portions 52, the flow direction of the heat exchange fluid flowing through the third plate-to-plate passages 37 is opposite to the flow direction of the heat exchange fluid flowing through the fourth plate-to-plate passages 38, the third plate-to-plate passages 37 are located between the fourth plate-to-plate passages 38 and the second side plates 102, and the third sub-passages 331 are communicated with the fourth sub-passages 332 through the third plate-to-plate passages 37, the fourth port holes 34 and the fourth plate-to-plate passages 38 in sequence. The through holes of the first heat exchange plate 10 further comprise third flow through holes 13, and the third flow through holes 13 are communicated with the fourth sub-channel 332. Through the arrangement, the heat exchanger can realize double flows for the second heat exchange fluid, and the flow path of the second heat exchange fluid is favorably increased.

As shown in fig. 2, 9 to 11, and 17 to 25, the heat exchanger further includes a flow block 63 and a second adapter plate 103, the second adapter plate 103 is located between the flow block 63 and the first edge plate 101, the second adapter plate 103 includes a fifth connection hole 1031 and a sixth connection hole 1032 which are arranged at an interval, the second tube 42 is connected to a surface of the second adapter plate 103 facing away from the first edge plate 101, a portion of the second tube 42 passes through the fifth connection hole 1031 and is located in the third hole passage 33, the flow block 63 is hermetically connected to a side of the second adapter plate 103 facing away from the first edge plate 102, the flow block 63 includes a first passage 631 and a second passage 632, the first passage 631 is communicated with the third sub-passage 331 through the second tube 42, and the second passage 632 is communicated with the fourth sub-passage 332 through the sixth connection hole 1032 and the through hole of the first edge plate 101. Through the arrangement, the distribution uniformity of the working fluid is improved conveniently. It will be appreciated that when the heat exchanger further comprises a second adapter plate 103, the second adapter plate 103 may be integrally formed with the first adapter plate 104.

In some embodiments, as shown in connection with fig. 7, 11 and 14, the flow direction of the heat exchange fluid through the third interplate passages 37 and the first interplate passages 35 is reversed, the flow direction of the heat exchange fluid through the fourth interplate passages 38 and the second interplate passages 36 is reversed, and the first flow channels and the second flow channels are capable of communicating different heat exchange fluids. The first flow channel of the first heat exchange fluid and the second flow channel of the second heat exchange fluid are both double-flow, and countercurrent circulation of the two heat exchange fluids can be realized, so that the heat exchange performance of the heat exchanger is convenient to promote.

To facilitate the installation of the second tube 42, as shown in fig. 8 to 12 and 17 to 25, in some embodiments, the second adapter plate 103 includes spaced apart fifth and sixth connection holes 1031 and 1032, the second tube 42 is connected to a surface of the second adapter plate 103 facing away from the first edge plate 101, and a portion of the second tube 42 passes through the fifth connection hole 1031 and is located in the third hole passage 33. Specifically, the second tube 42 includes a third flow tube 422 and a third flange portion 421, the third flange portion 421 is located at one end of the third flow tube 422 in the height direction, the third flange portion 421 is connected to the surface of the second adapter plate 103 facing away from the first side plate 101, the third flow tube 422 passes through the fifth connecting hole 1031, at least a portion of the third flow tube 422 is located in the third through hole 33, the third flow tube 422 has a second opening 4221 located on the side away from the third flange portion 421, the second opening 4221 is communicated with the third sub-passage 331, the third sub-passage 331 has a top end close to the first side plate 101, and the second opening 4221 is located close to the top end of the third sub-passage 331. Through the arrangement, better heat exchange of two heat exchange fluids can be facilitated.

It is understood that the shape of the third corner hole 23 may be similar to the shape of the first corner hole 21 of any of the above embodiments, and the shape of the fourth corner hole 24 may be similar to the shape of the second corner hole 22 of any of the above embodiments, and thus, the description thereof is omitted.

In order to make the heat exchange fluid flow more uniformly in the heat exchanger and improve the heat exchange performance, as shown in fig. 15, in some embodiments, the heat exchange plate further includes a plurality of protrusion structures 25, the protrusion structures are scattered in the planar area of the heat exchange plate, the shape of the protrusion structures 25 can be set according to the user's requirement, for example, in fig. 15, the heat exchange plate may include two protrusion structures, one is an oblong protrusion, and the other is a circular protrusion, and/or, as shown in fig. 16, the heat exchanger may further include a serrated fin 26, the serrated fin 26 is located in an inter-plate channel between two adjacent heat exchange plates, the serrated fin 26 may be a windowed fin, the serrated fin 26 includes a window 261 and a flow channel 262, the window 261 of the serrated fin 26 and the flow channel 262 are both parallel to the length direction X of the heat exchange plate, in a specific implementation, the serrated fin 26 may be located in the inter-plate channel, for example, the serrated fins 26 may be located in interplate channels of the first flow channels, and the first heat exchange fluid circulating in the first flow channels may be cooling water.

In summary, according to the heat exchanger 1 provided by the embodiment of the present invention, the heat exchanger 1 includes the first tube 41, the first partition 51, the first connection part 611 and the second connection part 621, the first partition 51 partitions the first duct 31 into the first sub-channel 311 and the second sub-channel 312, so that the flow cavity of the first connection part 611 is communicated with the first sub-channel 311 through the flow cavity of the first tube 41, and the second connection part 621 is communicated with the second sub-channel 312, when the heat exchange fluid enters the heat exchanger 1 through one of the first sub-channel 311 and the second sub-channel 312, and leaves the heat exchanger 1 through the other, the first connection part 611 and the second connection part 621 are conveniently and centrally disposed on the side where the first duct 31 is located, which can be beneficial to saving the installation space of the heat exchanger, and is convenient for popularization and application.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various modifications, combinations, or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A heat exchanger comprises a first side plate, a second side plate and a core body located between the first side plate and the second side plate, and is characterized in that the core body comprises a plurality of stacked heat exchange plates, each heat exchange plate comprises a first heat exchange plate and a second heat exchange plate group, the first heat exchange plate is located between the second heat exchange plate group and the first side plate, each second heat exchange plate group comprises a plurality of stacked second heat exchange plates, each second heat exchange plate is provided with a first corner hole, and the first corner holes of the plurality of second heat exchange plates correspond to at least part of a first hole channel;

2. The heat exchanger according to claim 1, wherein an orthographic projection of the first interface portion and an orthographic projection of the second interface portion at least partially overlap with an orthographic projection of the first porthole, as projected toward the first porthole in a stacking direction of the heat exchange plates.

3. The heat exchanger according to claim 2, further comprising a first connecting pipe and a second connecting pipe, wherein the first interface portion is located in the first connecting pipe, the second interface portion is located in the second connecting pipe, the first interface portion and the second interface portion are arranged along a length direction of the heat exchange plate, and project to the first side plate along a stacking direction of the heat exchange plate, and both a forward projection of the first interface portion and a forward projection of the second interface portion are located inside a forward projection of the first hole channel.

4. The heat exchanger according to claim 1, wherein a dimension of the first porthole in a length direction of the heat exchange plate is larger than a dimension of the first porthole in a width direction of the heat exchange plate, a center of an orthographic projection of the first tube and a center of an orthographic projection of the first porthole are eccentrically located as projected toward the first side plate in a stacking direction of the heat exchange plate.

5. The heat exchanger of claim 4, wherein the first angled hole is a kidney-shaped long hole, the hole wall of the first angled hole comprises a first circular arc segment and a second circular arc segment, and the first tube is coaxial with one of the first circular arc segment and the second circular arc segment; or the hole wall of the first angular hole comprises a first section, a second section and a third section, the extending direction of the first section, the extending direction of the second section and the extending direction of the third section are all intersected, the second section is adjacent to the edge of the heat exchange plate in the length direction, and the first pipe is adjacent to the second section.

6. The heat exchanger according to any one of claims 1 to 5, wherein the first heat exchange plate comprises a first mounting hole and a first flow through hole which are arranged at intervals, the first mounting hole is communicated with the first sub-channel, the first flow through hole is communicated with the second sub-channel, the first pipe comprises a first flow through pipe and a first flange part, the first flange part is connected with the surface of the first heat exchange plate facing the first side plate, and at least part of the first flow through pipe is positioned in the first mounting hole and the first pore channel.

7. The heat exchanger of claim 6, wherein the first edge plate includes a first connection hole and a second connection hole, a portion of the first interface portion is fitted into the first connection hole, a portion of the second interface portion is fitted into the second connection hole, the flow chamber of the first interface portion is in communication with the flow chamber of the first tube, and the flow chamber of the second interface portion is in communication with the second sub-passage through the first flow passage.

8. The heat exchanger of any one of claims 1 to 5, further comprising a first interface plate located on a side of the first edge plate facing away from the core, the first and second interface portions being connected to the first interface plate;

the first edge plate comprises a second mounting hole and a second flow through hole which are arranged at intervals, the flow cavity of the second connecting port is communicated with the second sub-channel through the second flow through hole, the first pipe comprises a second flow pipe and a second flange part which are mutually connected, the second flange part is connected with the surface, facing the first transfer plate, of the first edge plate, and at least part of the second flow pipe is located in the second mounting hole and the first pore channel.

9. The heat exchanger according to any one of claims 1 to 5, wherein the second heat exchange plate further has a third corner hole and a fourth corner hole, the third corner holes of the stacked second heat exchange plates correspondingly form at least part of a third hole channel, and the third hole channel is isolated from the first hole channel;

the heat exchanger also comprises a second pipe and a second partition part, wherein part of the second pipe is positioned on one side of the first heat exchange plate, which is far away from the second edge plate, the second pipe and one of the second heat exchange plates are hermetically connected with the second partition part, the second partition part partitions the third pore passage into a third sub-passage and a fourth sub-passage, the third sub-passage is adjacent to the second edge plate, the fourth sub-passage is adjacent to the first edge plate, at least part of the first pipe is positioned in the fourth sub-passage, and the circulation cavity of the second pipe is communicated with the third sub-passage.

10. The heat exchanger according to claim 9, wherein the second heat exchange plate further has a second corner hole spaced apart from the first corner hole and a fourth corner hole spaced apart from the third corner hole, the second corner holes of the plurality of second heat exchange plates are correspondingly communicated to form at least part of a second hole channel, the flow cavity of the first tube is communicated with the second sub-channel through the first sub-channel and the second hole channel, the fourth corner holes of the plurality of second heat exchange plates arranged in a stacked manner are correspondingly communicated to form at least part of a fourth hole channel, and the second tube is communicated with the fourth sub-channel through the third sub-channel and the fourth hole channel;

the third corner hole and the first corner hole are located at two corners of the second heat exchange plate on the same side in the length direction, and the fourth corner hole and the second corner hole are located at two corners of the second heat exchange plate on the same side in the length direction.

11. The heat exchanger of claim 9, further comprising a second adapter plate and a flow block, the second adapter plate being positioned between the flow block and the first edge plate, the second tube being connected to a surface of the second adapter plate facing away from the first edge plate, the flow block including a first channel and a second channel, the first channel being in communication with the second tube, the second channel being in communication with the fourth sub-channel.

12. The heat exchanger according to any one of claims 1 to 5, 7, 10 and 11, wherein inter-plate channels are formed between adjacent heat exchange plates, the heat exchanger further comprises serrated fins which are positioned in the inter-plate channels and the flow channels of the serrated fins are parallel to the length direction of the heat exchange plates; or, the heat exchange plate further comprises a plurality of convex structures, and the plurality of convex structures are scattered in the passages among the plates.

13. The heat exchanger of claim 6, wherein inter-plate channels are formed between adjacent heat exchange plates, the heat exchanger further comprising serrated fins positioned in the inter-plate channels and having flow channels parallel to the length direction of the heat exchange plates; or, the heat exchange plate further comprises a plurality of convex structures, and the plurality of convex structures are scattered in the passages among the plates.

14. The heat exchanger of claim 8, wherein inter-plate channels are formed between adjacent heat exchange plates, the heat exchanger further comprising serrated fins positioned in the inter-plate channels and having flow channels parallel to the length direction of the heat exchange plates; or, the heat exchange plate further comprises a plurality of convex structures, and the plurality of convex structures are scattered in the passages among the plates.

15. The heat exchanger of claim 9, wherein inter-plate channels are formed between adjacent heat exchange plates, the heat exchanger further comprising serrated fins positioned in the inter-plate channels and having flow channels parallel to the length direction of the heat exchange plates; or, the heat exchange plate further comprises a plurality of convex structures, and the plurality of convex structures are scattered in the passages among the plates.