CN111256494B

CN111256494B - Heat exchanger, thermal management system of vehicle and vehicle

Info

Publication number: CN111256494B
Application number: CN201811457720.5A
Authority: CN
Inventors: 胡珂; 黄梅芳; 刘丽鑫
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2022-07-15
Anticipated expiration: 2038-11-30
Also published as: CN111256494A

Abstract

The invention discloses a heat exchanger, a heat management system of a vehicle and the vehicle, wherein the heat exchanger comprises a body and a joint, the body comprises a plurality of first heat exchange tubes which are arranged in sequence, each first heat exchange tube defines a first medium channel and a second medium channel, at least part of at least one second medium channel in one of the first heat exchange tubes in two adjacent heat exchange tubes is arranged to exchange heat with at least part of at least one second medium channel in the other first heat exchange tube in a face-to-face mode, the joint comprises a first connecting tube and a second connecting tube, the first connecting tube is communicated with the first medium channel, and the second connecting tube is communicated with the second medium channel. The heat exchanger disclosed by the invention has the advantages of simple structure, good use reliability and applicability, and capability of meeting the heat exchange requirements of various media.

Description

Heat exchanger, thermal management system of vehicle and vehicle

Technical Field

The invention relates to the technical field of heat exchange, in particular to a heat exchanger, a thermal management system of a vehicle and the vehicle.

Background

With the continuous development of automobile technology, the structure of an automobile power system is more and more complex, and the temperature source in a thermal management system is more and more. In order to realize heat exchange among various heat sources, a plate type multi-medium heat exchanger is adopted in the related technology, however, the structure of the heat exchanger is formed by stamping plates and then welding, different plate stamping dies are necessarily required to be designed for different products, the product generalization rate is very low, and the manufacturing and development cost is high; moreover, the plate thickness cannot be selected to be thicker due to the guarantee of welding reliability and heat exchange efficiency, but the pressure resistance of the structure is not very high.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a heat exchanger, which has a simple structure, good use reliability and applicability, and meets the heat exchange requirements of various media.

Another object of the invention is to propose a thermal management system of a vehicle having the above-mentioned heat exchanger.

It is a further object of the present invention to provide a vehicle having the thermal management system described above.

A heat exchanger according to an embodiment of the first aspect of the invention comprises: a body comprising a plurality of first heat exchange tubes arranged in series, each of the first heat exchange tubes defining a first media channel and a second media channel, at least a portion of at least one of the second media channels in one of the adjacent two first heat exchange tubes being disposed in face-to-face relationship with at least a portion of at least one of the second media channels in the other one of the first heat exchange tubes to exchange heat; the joint comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is communicated with the first medium channel, and the second connecting pipe is communicated with the second medium channel.

According to the heat exchanger provided by the embodiment of the invention, the plurality of first heat exchange tubes of the body are arranged, so that the first medium channels and the second medium channels are defined in the first heat exchange tubes, and at least parts of the two second medium channels belonging to different and adjacent two first heat exchange tubes are arranged in a face-to-face manner to exchange heat, thereby ensuring the use reliability of the first heat exchange tubes and meeting the heat exchange requirements of various media; the joint is arranged, so that the heat exchanger is conveniently arranged in a medium circulation loop, and the heat exchanger is simple in structure and convenient to assemble; simultaneously, under certain conditions, first heat exchange tube can adopt integrative extrusion formula shaping design, has promoted the suitability and the practicality of heat exchanger.

According to some embodiments of the invention, the first heat exchange tube includes one of the first medium channels and a plurality of the second medium channels disposed around the first medium channel so that the first medium channel exchanges heat with any of the second medium channels.

According to some embodiments of the invention, a plurality of the first heat exchange tubes are sequentially arranged in a first direction to constitute one heat exchange tube layer, the body comprises a plurality of the heat exchange tube layers sequentially arranged in a second direction, and at least part of at least one of the second medium channels in one of the first heat exchange tubes, of two adjacent first heat exchange tubes in the same or adjacent layers, is arranged to face-to-face with at least part of at least one of the second medium channels in the other one of the first heat exchange tubes to exchange heat.

According to some embodiments of the invention, each of the first heat exchange tubes has a cross section of an isosceles triangle or an equilateral triangle, each two adjacent first heat exchange tubes in the same layer are arranged upside down, and the bottom sides are parallel and the waist sides are close to each other.

According to some embodiments of the present invention, the first medium channel and the second medium channel each have a cross-sectional shape similar to that of the first heat exchange tube, the first medium channel is inverted in the center of the first heat exchange tube, and the second medium channels are three and respectively disposed right at three corners of the first heat exchange tube so as to be circumferentially distributed outside three sides of the first medium channel.

According to some embodiments of the invention, the body further comprises: the second heat exchange tube defines at least one of a third medium channel and a fourth medium channel, the third medium channel is communicated with the first connecting tubes or the second connecting tubes, the fourth medium channel is communicated with the second connecting tubes, the second heat exchange tube is arranged at the end sides of the plurality of first heat exchange tubes, and exchanges heat with at least one of the first medium channel and the second medium channel in the first heat exchange tube at the end side.

According to some embodiments of the present invention, the cross sections of the first heat exchange tubes are isosceles triangles or equilateral triangles, every two adjacent first heat exchange tubes in the same layer are arranged upside down, the bottom sides of the first heat exchange tubes are parallel, and the waist sides of the first heat exchange tubes are close to each other, the cross section of the second heat exchange tube is a right-angled triangle and is arranged at the end side of the heat exchange tube layer, one right-angled side of the second heat exchange tube is parallel to the bottom side of the first heat exchange tube in the layer where the second heat exchange tube is located, and the oblique side of the second heat exchange tube is close to the waist side of the first heat exchange tube at the end side of the layer where the second heat exchange tube is located.

According to some embodiments of the invention, the heat exchanger further comprises: a frame surrounding the body to limit the relative positions of the plurality of first heat exchange tubes and the first and second heat exchange tubes.

According to some embodiments of the invention, the heat exchanger further comprises: a frame surrounding the body to limit the relative positions of the plurality of first heat exchange tubes.

According to some embodiments of the invention, the frame has a hollowed-out area thereon.

According to a second aspect of the present invention, a thermal management system for a vehicle, the thermal management system comprising: a heat exchanger according to an embodiment of the above first aspect of the invention; the heat exchanger is arranged on the main medium circulation loop, and the first medium channel is connected to the main medium circulation loop; the heat exchanger is arranged on the plurality of secondary medium circulation loops, and the plurality of second medium channels are correspondingly connected on the plurality of secondary medium circulation loops.

According to the vehicle thermal management system provided by the embodiment of the invention, the heat exchanger is adopted, so that the heat exchange requirements of various media are met, and the normal operation of the thermal management system is ensured.

According to some embodiments of the present invention, the primary medium circulation loop comprises a battery heat exchange fluid circulation loop, and the plurality of secondary medium circulation loops comprise at least two of an engine coolant circulation loop, an exhaust gas waste heat recovery coolant circulation loop, a motor waste heat recovery coolant circulation loop, and an air conditioning system refrigerant circulation loop of the vehicle.

A vehicle according to an embodiment of the third aspect of the invention comprises a thermal management system of a vehicle according to an embodiment of the second aspect of the invention described above.

According to the vehicle provided by the embodiment of the invention, the thermal management system runs normally by adopting the thermal management system, so that the use experience effect of the vehicle is effectively improved.

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

Drawings

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

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

FIG. 2 is a front view of the heat exchanger shown in FIG. 1;

FIG. 3 is an exploded view of a heat exchanger according to another embodiment of the present invention;

FIG. 4 is a schematic structural view of a first heat exchange tube according to an embodiment of the invention;

FIG. 5 is a schematic cross-sectional view of the first heat exchange tube shown in FIG. 4;

FIG. 6 is a schematic structural view of a second heat exchange tube according to an embodiment of the present invention;

FIG. 7 is a schematic cross-sectional configuration of the second heat exchange tube illustrated in FIG. 6;

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

FIG. 9 is a schematic view of a first heat exchange tube according to yet another embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a thermal management system according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a thermal management system according to another embodiment of the present invention;

fig. 12 is a schematic structural diagram of a vehicle according to an embodiment of the invention.

Reference numerals:

a vehicle 300,

A heat management system 200, a kettle 200a, a water pump 200b,

A main medium circulation circuit 101, a battery heat exchange liquid circulation circuit 1011, a battery 1011a,

A secondary medium circulation circuit 102,

An engine coolant circulation circuit 1021, an engine 1021a, an engine radiator 1021b,

A tail gas waste heat recovery cooling liquid circulation loop 1022, a tail gas heat exchanger 1022a,

Motor afterheat recovering cooling liquid circulation loop 1023, motor 1023a, motor radiator 1023b,

Refrigerant circulation loop 1024 of air conditioning system,

A heat exchanger 100,

A body 1, a heat exchange tube layer 10, a first heat exchange tube 11, a first medium channel 111, a second medium channel 112,

A second heat exchange tube 12, a third medium channel 121, a fourth medium channel 122,

Frame 3, hollowed-out area 31.

Detailed Description

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

A heat exchanger 100 according to an embodiment of the first aspect of the present invention will now be described with reference to fig. 1-9.

As shown in fig. 1 to 9, a heat exchanger 100 according to an embodiment of the present invention includes a body 1 and a joint.

The body 1 comprises a plurality of first heat exchange tubes 11 arranged in sequence, each first heat exchange tube 11 defines a first medium channel 111 and a second medium channel 112, at least a part of at least one second medium channel 112 in one of the adjacent two first heat exchange tubes 11 is disposed in face-to-face relation with at least a part of at least one second medium channel 112 in the other first heat exchange tube 11 to exchange heat, and the joint comprises a first joint pipe and a second joint pipe, the first joint pipe is communicated with the first medium channel 111, and the second joint pipe is communicated with the second medium channel 112.

For example, as shown in fig. 1 to 9, the main medium may flow in the first medium channel 111, the sub medium may flow in the second medium channel 112, the number of joints corresponding to one first heat exchange tube 11 may be two, the two joints may be respectively provided at both ends of the corresponding first heat exchange tube 11, both the first medium channel 111 and the second medium channel 112 may penetrate the both ends of the first heat exchange tube 11, so that the first connection pipes of the two joints may be respectively provided at both ends (e.g., inlet end and outlet end) of the first medium channel 111, and the second connection pipes of the two joints may be respectively provided at both ends (e.g., inlet end and outlet end) of the second medium channel 112.

Wherein heat can be directly or indirectly exchanged between the first medium channel 111 and the second medium channel 112, at least a portion of one second medium channel 112 of one of the adjacent two first heat exchange tubes 11 is disposed to face at least a portion of one second medium channel 112 of the other first heat exchange tube 11 to exchange heat, so that at least portions of two corresponding second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 can be in face contact to directly exchange heat, that is, heat can be directly exchanged between one first medium channel 111 of the first heat exchange tube 11 and one first medium channel 111 of the other first heat exchange tube 11 adjacent to the above-mentioned first heat exchange tube 11. Therefore, the main medium and the auxiliary medium or the auxiliary medium and the auxiliary medium which exchange heat with each other can be arranged according to different heat exchange requirements among different media, so that the heat exchange requirements of various media are met, the heat exchanger 100 is simple in structure and convenient to assemble, the first heat exchange tube 11 can be free of a welding process, leakage of the first heat exchange tube 11 is effectively avoided, and the use reliability of the first heat exchange tube 11 is ensured; wherein, the concrete structure of first heat exchange tube 11 can specifically set up according to the actual demand, for example when first heat exchange tube 11 extends along the straight line, first medium passageway 111 and second medium passageway 112 can all run through the axial both ends of first heat exchange tube 11, first heat exchange tube 11 can adopt integrative extrusion formula shaping design, first heat exchange tube 11 is integrative extruded part promptly, thereby can be according to heat exchange demand of heat exchanger 100, under the condition that need not reopen the mould, can adjust heat transfer power of heat exchanger 100 through modes such as increasing or shortening the axial length of first heat exchange tube 11 or changing first heat exchange tube 11 quantity, the suitability and the practicality of heat exchanger 100 have been promoted.

Of course, when the second medium channels 112 of the first heat exchange tube 11 are plural, at least a portion of at least one second medium channel 112 of one of the first heat exchange tubes 11 among the adjacent two first heat exchange tubes 11 is disposed to face with at least a portion of at least one second medium channel 112 of the other one of the first heat exchange tubes 11 correspondingly to exchange heat so that at least a portion of the plural corresponding second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 may be in face-contact to directly exchange heat, so that the plural second medium channels 112 of the first heat exchange tubes 11 and the plural second medium channels 112 of the other one of the first heat exchange tubes 11 adjacent to the above-mentioned first heat exchange tubes 11 may be in one-to-one correspondence to directly exchange heat, or the plural second medium channels 112 of the first heat exchange tubes 11 and the one second medium channels 112 of the other one of the first heat exchange tubes 11 adjacent to the above-mentioned first heat exchange tubes 11 may be in correspondence to directly exchange heat, Or one second medium channel 112 of the first heat exchange tube 11 and a plurality of second medium channels 112 of another first heat exchange tube 11 adjacent to the above-mentioned first heat exchange tube 11 may correspond to directly exchange heat.

When the plurality of second medium channels 112 of the first heat exchange tube 11 and the plurality of second medium channels 112 of the other first heat exchange tube 11 adjacent to the above-mentioned first heat exchange tube 11 are in one-to-one correspondence to directly exchange heat, for example, in the example of fig. 4 and 5, the number of the second medium channels 112 of the first heat exchange tube 11 is three, one of the second medium channels 112 may be located at an upper portion of the first heat exchange tube 11, the other two second medium channels 112 may be provided at a lower portion of the first heat exchange tube 11 at intervals in the left-right direction, the other first heat exchange tube 11 is arranged at a right side of the first heat exchange tube 11 shown in fig. 4 and 5, the second medium channel 112 of the upper portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed to face with the one second medium channel 112 of the above-mentioned other first heat exchange tube 11 to exchange heat, and the second medium channel 112 of the lower portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed to face to the other with the second medium channel 112 of the above-mentioned first heat exchange tube 11 Yet another second media passage 112 is disposed face to exchange heat.

It is understood that the number of the first medium channels 111 of the first heat exchange tube 11 can be one or more, the number of the second medium channels 112 of the first heat exchange tube 11 can be one or more, correspondingly, the number of the first connecting tubes of the joint can be one or more, the number of the second connecting tubes of the joint can be one or more, and the number of the first medium channels 111 and the number of the second medium channels 112 can be specifically set according to actual requirements; the inlet end and the outlet end of the first medium channel 111 and the inlet end and the outlet end of the second medium channel 112 may be specifically configured according to practical arrangement requirements, that is, the flow direction of the main medium in the first medium channel 111 may be the same or opposite to the flow direction of the sub medium in the second medium channel 112, when the first medium channel 111 of the first heat exchange tube 11 is multiple and the main medium in the multiple first medium channels 111 is different, the flow direction of the main medium in the multiple first medium channels 111 may be the same or opposite, and when the second medium channel 112 of the first heat exchange tube 11 is multiple and the sub medium in the multiple second medium channels 112 is different, the flow direction of the sub medium in the multiple second medium channels 112 may be the same or opposite; the arrangement of the plurality of first heat exchange tubes 11 can be specifically arranged according to actual needs.

In the description of the present invention, "a plurality" means two or more.

According to the heat exchanger 100 of the embodiment of the invention, the plurality of first heat exchange pipes 11 of the body 1 are arranged, so that the first medium channels 111 and the second medium channels 112 are defined in the first heat exchange pipes 11, and at least parts of the two second medium channels 112 belonging to different and adjacent two first heat exchange pipes 11 are arranged in a face-to-face manner to exchange heat, thereby ensuring the use reliability of the first heat exchange pipes 11 and meeting the heat exchange requirements of various media; the heat exchanger 100 is conveniently arranged in a medium circulation loop by arranging the joint, and the heat exchanger 100 is simple in structure and convenient to assemble; meanwhile, under certain conditions, the first heat exchange tube 11 can be designed by adopting an integrated extrusion molding mode, so that the applicability and the practicability of the heat exchanger 100 are improved.

In some embodiments of the present invention, the first heat exchange tube 11 includes one first medium channel 111 and a plurality of second medium channels 112, and the plurality of second medium channels 112 are disposed around the first medium channel 111 so that the first medium channel 111 exchanges heat with any of the second medium channels 112. For example, as shown in fig. 1 to 5, a plurality of second medium passages 112 may be sequentially arranged in the circumferential direction of the first medium passage 111, and each second medium passage 112 may be arranged face to face with a portion of the first medium passage 111 to exchange heat, so that the primary medium in the first medium passage 111 may exchange heat with the secondary medium in any of the second medium passages 112. In the heat exchanger 100, during use, a primary medium flows in the first medium channel 111, and a secondary medium may flow in at least one of the second medium channels 112; when the main medium needs to exchange heat with one kind of secondary medium, the secondary medium flows into one of the second medium channels 112, so that the main medium in the first medium channel 111 exchanges heat with the secondary medium in the one of the second medium channels 112; when the main medium needs to exchange heat with at least two secondary media, the at least two secondary media may flow into at least two of the plurality of second medium channels 112, respectively, so that the main medium in the first medium channel 111 may exchange heat with at least two secondary media in the at least two second medium channels 112 at the same time. Therefore, different heat exchange requirements are met, and the practicability and the applicability of the heat exchanger 100 are further improved.

It is understood that heat may not be directly exchanged between the plurality of second medium channels 112 in the first heat exchange tube 11, or heat exchange between the plurality of second medium channels 112 in the first heat exchange tube 11 may be negligible. But is not limited thereto.

In the example of fig. 1 to 5, the first heat exchange tube 11 includes one first medium channel 111 and three second medium channels 112, the three second medium channels 112 are arranged around the first medium channel 111 in the circumferential direction of the first medium channel 111, each of the second medium channels 112 may be arranged face to face with a portion of the first medium channel 111 to directly exchange heat, and the heat exchange between any adjacent two of the three second medium channels 112 may be negligible. In the use process of the heat exchanger 100, a main medium flows in the first medium channel 111, and an auxiliary medium can flow in at least one of the three second medium channels 112; when the main medium needs to exchange heat with one kind of secondary medium, the secondary medium flows into one of the three second medium channels 112, so that the main medium in the first medium channel 111 exchanges heat with the secondary medium in the one of the second medium channels 112; when the main medium needs to exchange heat with two secondary media, the two secondary media can respectively and correspondingly flow into two of the three second medium channels 112, so that the main medium in the first medium channel 111 can exchange heat with the two secondary media in the two second medium channels 112; when the main medium needs to exchange heat with three secondary media, the three secondary media may flow into the three second medium channels 112 one-to-one, respectively, so that the main medium in the first medium channel 111 may exchange heat with the three secondary media in the three second medium channels 112 at the same time.

Here, it should be noted that "the first medium passage 111 exchanges heat with any of the second medium passages 112" means that the first medium passage 111 can exchange heat with any one or more of the plurality of second medium passages 112.

In some alternative embodiments of the present invention, a plurality of first heat exchange tubes 11 are sequentially arranged in a first direction (e.g., left-right direction in fig. 1) to constitute one heat exchange tube layer 10, the body 1 includes a plurality of heat exchange tube layers 10 sequentially arranged in a second direction (e.g., up-down direction in fig. 1), at least a portion of at least one second medium channel 112 in one of the first heat exchange tubes 11 in two adjacent first heat exchange tubes 11 in the same or adjacent layers is disposed face-to-face with at least a portion of the second medium channel 112 of at least one of the other first heat exchange tubes 11 to exchange heat, and the two adjacent first heat exchange tubes 11 may be subordinate to the same heat exchange tube layer 10 or subordinate to different and adjacent heat exchange tube layers 10. For example, as shown in fig. 1 to 5, each first heat exchange tube 11 may extend along a straight line, the extending directions of the plurality of first heat exchange tubes 11 may be all arranged in parallel, the plurality of first heat exchange tubes 11 are sequentially arranged along the first direction, and the surfaces of the adjacent two first heat exchange tubes 11, which are opposite to each other, may be arranged in close contact with each other, and in the same heat exchange tube layer 10, heat exchange may be directly performed between the corresponding second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11, that is, in the same heat exchange tube layer 10, heat exchange may be directly performed between at least one second medium channel 112 of a first heat exchange tube 11 and the corresponding at least one second medium channel 112 of the first heat exchange tube 11 adjacent to the above first heat exchange tube 11; the plurality of heat exchange tube layers 10 are sequentially arranged along the second direction, and the surfaces of the corresponding first heat exchange tubes 11 of two adjacent heat exchange tube layers 10, which are opposite to each other, can be tightly attached to each other, and in two adjacent heat exchange tube layers 10, the corresponding second medium channels 112 of two adjacent first heat exchange tubes 11 belonging to different heat exchange tube layers 10 can directly exchange heat, that is, at least one second medium channel 112 of one first heat exchange tube 11 in the heat exchange tube layers 10 can directly exchange heat with at least one second medium channel 112 of the corresponding first heat exchange tube 11 in the heat exchange tube layer 10 adjacent to the heat exchange tube layer 10, which is adjacent to the first heat exchange tube 11. Wherein the first direction may be perpendicular to the extending direction of the first heat exchanging pipe 11, the second direction may be perpendicular to the first direction, and the second direction may be perpendicular to the extending direction of the first heat exchanging pipe 11. Therefore, the body 1 is simple in structure, the first heat exchange tubes 11 are convenient to arrange, and the assembly efficiency of the heat exchanger 100 is effectively guaranteed.

Here, it should be noted that "the surfaces of the adjacent two first heat exchange tubes 11 opposite to each other may be disposed closely" may include that the adjacent two first heat exchange tubes 11 are in surface contact with each other, and similarly, "the surfaces of the adjacent two heat exchange tubes 10 corresponding to the two first heat exchange tubes 11 may be disposed closely" may include that the corresponding two first heat exchange tubes 11 of the adjacent two heat exchange tubes 10 are in surface contact with each other.

For example, in the example of fig. 1, 2, 4 and 5, the number of the second medium channels 112 of the first heat exchange tube 11 is three, one of the second medium channels 112 may be located at an upper portion of the first heat exchange tube 11, and the other two second medium channels 112 may be provided at a lower portion of the first heat exchange tube 11 at intervals in the left-right direction, another one of the first heat exchange tubes 11 being arranged at a right side of the first heat exchange tube 11 shown in fig. 4 and 5, and still another one of the first heat exchange tubes 11 being arranged at a lower side of the first heat exchange tube 11 shown in fig. 4 and 5, wherein the first heat exchange tube 11 shown in fig. 4 and 5 and the above another one of the first heat exchange tubes 11 are respectively subordinate to the same heat exchange tube layer 10, the first heat exchange tube 11 shown in fig. 4 and 5 and the above still another one of the first heat exchange tubes 11 are subordinate to different and adjacent two heat exchange tube layers 10; the second medium channel 112 of the upper portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed face to face with one second medium channel 112 of the above-mentioned other first heat exchange tube 11 to exchange heat, and the second medium channel 112 of the right side of the lower portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed face to face with the still another second medium channel 112 of the above-mentioned other first heat exchange tube 11 to exchange heat, the second medium channel 112 of the left side of the lower portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed face to face with one second medium channel 112 of the above-mentioned still another first heat exchange tube 11 to exchange heat, and the second medium channel 112 of the right side of the lower portion of the first heat exchange tube 11 shown in fig. 4 and 5 may be disposed face to face with the still another second medium channel 112 of the above-mentioned still another first heat exchange tube 11 to exchange heat.

It is understood that at least a portion of the at least one second medium channel 112 in one of the first heat exchange tubes 11, and at least a portion of the at least one second medium channel 112 in another one of the first heat exchange tubes 11, among the adjacent two first heat exchange tubes 11 in the same or adjacent layer, are disposed face to exchange heat, and may include that when the adjacent two first heat exchange tubes 11 belong to the same heat exchange tube layer 10, at least a portion of the at least one second medium channel 112 in one of the first heat exchange tubes 11, and at least a portion of the at least one second medium channel 112 in another one of the first heat exchange tubes 11, are disposed face to exchange heat, and when the adjacent two first heat exchange tubes 11 respectively belong to different heat exchange tube layers 10, at least a portion of the at least one second medium channel 112 in one of the first heat exchange tubes 11, and at least a portion of the at least one second medium channel 112 in another one of the first heat exchange tubes 11, are disposed face to exchange heat.

In other alternative embodiments of the present invention, a plurality of first heat exchange tubes 11 are arranged in sequence along the first direction to form one heat exchange tube layer 10, and the body 1 includes one heat exchange tube layer 10, at least part of the two second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 in the heat exchange tube layer 10 are arranged in a face-to-face manner to exchange heat. Specifically, the body 1 includes a heat exchange tube layer 10, the heat exchange tube layer 10 includes a plurality of first heat exchange tubes 11, each first heat exchange tube 11 may extend along a straight line, the extending directions of the plurality of first heat exchange tubes 11 may be all arranged in parallel, the plurality of first heat exchange tubes 11 are sequentially arranged along a first direction, and surfaces of two adjacent first heat exchange tubes 11 opposite to each other may be disposed closely, heat exchange may be directly performed between two second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11, that is, in the heat exchange tube layer 10, one second medium channel 112 of a first heat exchange tube 11 may directly perform heat exchange with one corresponding second medium channel 112 of the first heat exchange tube 11 adjacent to the first heat exchange tube 11, so that the applicability of the heat exchanger 100 is further improved.

Optionally, the cross section of each first heat exchange tube 11 is an isosceles triangle or an equilateral triangle, each two adjacent first heat exchange tubes 11 in the same layer are arranged upside down, and the base sides are parallel and the waist sides are against each other. For example, in the example of fig. 1 to 5, the outer profile of the cross section of each first heat exchange tube 11 may be formed as an isosceles triangle, and a plurality of isosceles triangles corresponding to the plurality of first heat exchange tubes 11 may be congruent, so as to facilitate batch processing of the plurality of first heat exchange tubes 11 and improve the versatility of the heat exchanger 100; in the same heat exchange tube layer 10, the isosceles triangles corresponding to the two adjacent first heat exchange tubes 11 may be disposed upside down in the second direction, and in the same heat exchange tube layer 10, the bases of the isosceles triangles corresponding to the two adjacent first heat exchange tubes 11 are parallel, and the waist edges thereof are disposed closely, that is, the vertex angles of the isosceles triangles corresponding to the first heat exchange tubes 11 may be disposed toward the forward direction along the second direction, the vertex angles of the isosceles triangles corresponding to the first heat exchange tubes 11 located in the same heat exchange tube layer 10 and adjacent to the first heat exchange tubes 11 may be disposed toward the reverse direction along the second direction, the bases of the isosceles triangles corresponding to the two first heat exchange tubes 11 are parallel, and the waist edges are disposed in contact with each other, so that the outer contours of the cross sections of the two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 may substantially form a parallelogram, it is ensured that the heat exchange can be directly carried out between the two second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 in the same layer.

Of course, the outer profile of the cross section of each first heat exchange tube 11 may also be formed as an equilateral triangle. It is understood that the above-mentioned "isosceles triangle" does not include an equilateral triangle, and the vertex angle of the isosceles triangle may be an acute angle, or a right angle, or an obtuse angle. For example, in the example of fig. 1 to 5, the outer profile of the cross section of each first heat exchange tube 11 may be formed as an isosceles triangle with an obtuse vertex angle, and a plurality of isosceles triangles corresponding to the plurality of first heat exchange tubes 11 are congruent triangles, and the occupied space of the heat exchange tube layer 10 in the second direction is small, so that the occupied space of the heat exchanger 100 in the second direction is saved, and the heat exchanger 100 can reasonably utilize the arrangement space. Of course, the cross-sectional outer profiles of the first heat exchange tubes 11 may also each be formed as an isosceles triangle having an acute vertex angle (as shown in fig. 8, for example), or as an isosceles triangle having a right vertex angle.

Further, every two adjacent first heat exchange tubes 11 in adjacent layers are arranged upside down, and the bottom sides are parallel. For example, as shown in fig. 1 and 2, the body 1 includes a plurality of heat exchange tube layers 10 arranged in sequence along the second direction, each heat exchange tube layer 10 includes a plurality of first heat exchange tubes 11 arranged in sequence along the first direction, the cross section of each first heat exchange tube 11 is formed into an isosceles triangle or an equilateral triangle, and the triangles (isosceles triangle or equilateral triangle) corresponding to the plurality of first heat exchange tubes 11 in the plurality of heat exchange tube layers 10 are congruent triangles; the triangles corresponding to the two adjacent first heat exchange tubes 11 in the two adjacent heat exchange tube layers 10 can be arranged upside down in the second direction, in the two adjacent heat exchange tube layers 10, the bottom sides of the triangles corresponding to the two adjacent first heat exchange tubes 11 are parallel, that is, the vertex angles of the triangles corresponding to the first heat exchange tubes 11 in the heat exchange tube layers 10 can be arranged along the second direction toward the positive direction, and the triangle corresponding to the first heat exchange tube 11 connected to the first heat exchange tube 11 in the heat exchange tube layer 10 adjacent to the heat exchange tube layer 10 may be oppositely disposed along the second direction, therefore, the corresponding bottom edges or the vertex angles of the triangles of the two adjacent first heat exchange tubes 11 in the two adjacent heat exchange tube layers 10 are opposite, so that when the corresponding bottom edges of the triangles of the two adjacent first heat exchange tubes 11 in the two adjacent heat exchange tube layers are opposite, the two second medium channels 112 of the two first heat exchange tubes 11 can directly exchange heat therebetween.

Alternatively, the cross-sectional shapes of the first medium channel 111 and the second medium channel 112 are each similar to the cross-sectional shape of the first heat exchange tube 11, the first medium channel 111 is inverted in the center of the first heat exchange tube 11, the second medium channels 112 are three and the three second medium channels 112 are respectively disposed right at three corners of the first heat exchange tube 11 to surround and be distributed outside three sides of the first medium channel 111. For example, as shown in fig. 4 and 5, the cross-sectional shapes of the first medium channel 111 and the second medium channel 112 may each be formed as an isosceles triangle or an equilateral triangle, the first medium channel 111 is located at the center of the first heat exchange tube 11 and the vertex angle of the triangle corresponding to the first medium channel 111 and the vertex angle of the triangle corresponding to the first heat exchange tube 11 are disposed toward the opposite direction in the second direction, i.e., the vertex angle of the triangle corresponding to the first medium channel 111 is disposed adjacent to the base of the triangle corresponding to the first heat exchange tube 11 and the base of the triangle corresponding to the first medium channel 111 is disposed adjacent to the vertex angle of the triangle corresponding to the first heat exchange tube 11; the three second medium channels 112 are respectively arranged at three corners of the triangle corresponding to the first heat exchange tube 11, and the vertex angle of the triangle corresponding to each second medium channel 112 and the vertex angle of the triangle corresponding to the first heat exchange tube 11 are arranged along the same direction along the second direction, that is, one of the three second medium channels 112 is arranged at the vertex angle of the triangle corresponding to the first heat exchange tube 11, and the other two are respectively arranged at two bottom corners of the triangle corresponding to the first heat exchange tube 11, the vertex angle of one of the second medium channels 112 corresponding to the triangle corresponding to the first heat exchange tube 11 corresponds to the vertex angle of the triangle corresponding to the first heat exchange tube 11, the bottom side of the triangle corresponding to one of the second medium channels 112 corresponds to the bottom side of the triangle corresponding to the first medium channel 111, the bottom sides of the triangles corresponding to the first heat exchange tube 11 correspond to the bottom sides of the triangles of the other two second medium channels 112, and the bottom sides of the triangles corresponding to the first heat exchange tube 11 are arranged in the same direction, And the waist edges of the other two second medium channels 112 corresponding to the triangle respectively correspond to the two waist edges of the first medium channel 111 corresponding to the triangle, so that the first heat exchange tube 11 basically realizes the equal thickness design, and meanwhile, the cross sectional area of the first heat exchange tube 11 is effectively utilized, so that the arrangement of the first medium channel 111 and the second medium channel 112 is more reasonable.

In a further embodiment of the present invention, the body 1 further comprises a second heat exchange tube 12, the second heat exchange tube 12 defining at least one of a third medium channel 121 and a fourth medium channel 122, the third medium channel 121 communicating with either the first connecting tube or the second connecting tube, the fourth medium channel 122 communicating with the second connecting tube, the second heat exchange tube 12 being provided at an end side of the plurality of first heat exchange tubes 11, and the second heat exchange tube 12 exchanging heat with at least one of the first medium channel 111 and the second medium channel 112 in the end side of the first heat exchange tubes 11.

For example, in the example of fig. 1 to 3, 6 and 7, the second heat exchange tubes 12 may be plural, each of the second heat exchange tubes 12 may define a third medium channel 121 and a fourth medium channel 122, a secondary medium may flow in the third medium channel 121 and the fourth medium channel 122, the plural second heat exchange tubes 12 may include at least one heat exchange tube group, each of the heat exchange tube groups may include two second heat exchange tubes 12, the two second heat exchange tubes 12 of each heat exchange tube group may be respectively disposed at both end sides of the plural first heat exchange tubes 11 in the first direction, and each of the second heat exchange tubes 12 may exchange heat with at least one of the first medium channels 111 and the second medium channels 112 in the adjacent first heat exchange tube 11, for example, the third medium channel 121 may exchange heat with the corresponding second medium channel 112 in the adjacent first heat exchange tube 11, the fourth medium channel 122 may exchange heat with the corresponding second medium channel 112 in the adjacent first heat exchange tube 11, but is not limited thereto. Therefore, heat exchange among the multiple media is further ensured.

The sub medium in the third medium passage 121 and the sub medium in the fourth medium passage 122 may be the same or different; the second heat exchange tube 12 may further define one of a third medium channel 121 and a fourth medium channel 122. Of course, when the third medium channel 121 is connected to the first connection pipe, the main medium can flow in the third medium channel 121.

In some embodiments of the present invention, the cross section of the first heat exchange tube 11 is an isosceles triangle or an equilateral triangle, each two adjacent first heat exchange tubes 11 in the same layer are arranged upside down, and the bottom sides are parallel and the waist sides are close to each other, the cross section of the second heat exchange tube 12 is a right triangle and the second heat exchange tube 12 is arranged at the end side of the heat exchange tube layer 10, one right-angle side of the second heat exchange tube 12 is parallel to the bottom side of the first heat exchange tube 11 in the layer where the second heat exchange tube 12 is located, and the oblique side of the second heat exchange tube 12 is abutted against the waist side of the first heat exchange tube 11 at the end side of the layer where the second heat exchange tube 12 is located.

For example, in the example of fig. 1 to 7, the cross-sectional outer contour of each first heat exchange tube 11 may be formed as an isosceles triangle, and a plurality of isosceles triangles corresponding to the plurality of first heat exchange tubes 11 may be congruent, and the two second heat exchange tubes 12 of each heat exchange tube set may be respectively disposed at both end sides of the plurality of first heat exchange tubes 11 in the first direction; isosceles triangles corresponding to two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 can be arranged upside down in the second direction, and the bottom edges of the isosceles triangles corresponding to two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 are parallel, and the waist edges are closely arranged, that is, the vertex angles of the isosceles triangles corresponding to the first heat exchange tubes 11 can be arranged along the second direction towards the positive direction, the top angles of the isosceles triangles corresponding to the first heat exchange tubes 11 adjacent to the first heat exchange tubes 11 and located on the same heat exchange tube layer 10 as the first heat exchange tubes 11 may be oppositely arranged along the second direction, the bottom edges of the isosceles triangles corresponding to the two first heat exchange tubes 11 are parallel and the waist edges are in contact with each other, the cross section outline of two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 can be roughly formed into a parallelogram; the outer contour of the cross section of each second heat exchange tube 12 is a right triangle, a right-angle side of each second heat exchange tube 12 is parallel to the bottom side of the first heat exchange tube 11 which belongs to the same heat exchange tube layer 10 and is adjacent to the same, and the bevel edge of each second heat exchange tube 12 is tightly attached to the waist side of the first heat exchange tube 11 which belongs to the same heat exchange tube layer 10 and is adjacent to the same. Therefore, the outer contour of the cross section of the body 1 can be roughly formed into a square structure, for example, the body 1 can be roughly formed into a square columnar structure or a flat plate structure, so that the structure of the body 1 is more regular, the freedom degree of the arrangement space of the body 1 is larger, and the arrangement and the assembly of the body 1 are facilitated.

In a further embodiment of the present invention, the heat exchanger 100 further comprises a frame 3, the frame 3 surrounding the body 1 to limit the relative positions of the plurality of first heat exchange tubes 11 and the relative positions of the first and second

heat exchange tubes

11 and 12. For example, as shown in fig. 1 to 3, the frame 3 may be formed substantially in a ring-like structure, and when the first heat exchanging pipe 11 and the second heat exchanging pipe 12 each extend in a straight line, the extending direction of the first heat exchanging pipe 11 may be parallel to the extending direction of the second heat exchanging pipe 12, and the axial direction of the frame 3 may be parallel to the extending direction of the first heat exchanging pipe 11; the frame 3 is sleeved outside the body 1, so that the frame 3 can limit the relative positions of the first heat exchange tubes 11, and meanwhile, the frame 3 can limit the relative positions of the second heat exchange tubes 12 and the first heat exchange tubes 11, so that the frame 3 and the body 1 can form an integral structure, and the assembly, the transportation, the installation and the like of the heat exchanger 100 are facilitated.

Further, the heat exchanger 100 further includes a frame 3, and the frame 3 surrounds the body 1 to restrict the relative positions of the plurality of first heat exchanging pipes 11. For example, as shown in fig. 1 to 3, the frame 3 may be formed substantially in a ring-like structure, and when the first heat exchange pipe 11 extends in a straight line, the axial direction of the frame 3 may be parallel to the extending direction of the first heat exchange pipe 11; the frame 3 is sleeved outside the body 1, so that the frame 3 can limit the relative positions of the first heat exchange tubes 11, the frame 3 and the body 1 can form an integral structure, and the heat exchanger 100 is convenient to assemble, transport, install and the like.

Optionally, as shown in fig. 1 to 3, the frame 3 has a hollow area 31, and the hollow area 31 may penetrate through the frame 3 along a thickness direction of the frame 3, so as to reduce the weight of the frame 3, reduce the material consumption of the frame 3, and thereby reduce the cost of the heat exchanger 100. Wherein, the number and the specific shape of fretwork area 31 can specifically set up according to actual demand, for example fretwork area 31 can be a plurality of, and every fretwork area 31 can all set up to the obround.

According to the thermal management system 200 of the vehicle 300 according to the embodiment of the second aspect of the present invention, the thermal management system 200 includes the heat exchanger 100, the main medium circulation circuit 101, and the plurality of sub medium circulation circuits 102, the heat exchanger 100 is provided on the main medium circulation circuit 101, the first medium passage 111 is connected to the main medium circulation circuit 101, and the heat exchanger 100 is provided on the plurality of sub medium circulation circuits 102, and the plurality of second medium passages 112 are correspondingly connected to the plurality of sub medium circulation circuits 102. Wherein the heat exchanger 100 is a heat exchanger 100 according to an embodiment of the above first aspect of the present invention. Alternatively, the vehicle is a dual-mode electric vehicle, which may have an electric-only mode and a hybrid mode (i.e., a hybrid mode).

Specifically, as shown in fig. 10 and 11, each of the first heat exchange tubes 11 may define one first medium channel 111 and a plurality of second medium channels 112, the primary medium may flow in the primary medium circulation circuit 101, the secondary medium may flow in the secondary medium circulation circuit 102, the plurality of secondary medium circulation circuits 102 may respectively correspond to a plurality of secondary media, such that the primary medium may flow in the first medium channel 111, the secondary medium may flow in the second medium channel 112, and the plurality of secondary media may flow in the plurality of second medium channels 112; the main medium in the first medium channel 111 and the secondary medium in the second medium channel 112 can directly or indirectly exchange heat, and the secondary medium in the two second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 can directly exchange heat. Therefore, the corresponding main medium and the auxiliary medium can be respectively set according to different requirements of the thermal management system 200, the main medium circulation loop 101 can be provided with a main medium switch valve to control the connection and disconnection (namely non-connection) of the main medium circulation loop 101, the auxiliary medium circulation loop 102 can be provided with an auxiliary medium switch valve to control the connection and disconnection of the auxiliary medium circulation loop 102, and therefore the main medium and the auxiliary medium or the auxiliary medium and the auxiliary medium which exchange heat with each other can be further set according to different requirements of the thermal management system 200, the heat exchange requirements of various media are met, and the normal operation of the thermal management system 200 is ensured.

According to the thermal management system 200 of the vehicle 300, the heat exchanger 100 is adopted, so that the heat exchange requirements of various media are met, and the normal operation of the thermal management system 200 is ensured.

In some embodiments of the present invention, the primary medium circulation loop 101 includes a battery heat exchange fluid circulation loop 1011, and the plurality of secondary medium circulation loops 102 includes at least two of an engine coolant circulation loop 1021, an exhaust gas waste heat recovery coolant circulation loop 1022, a motor waste heat recovery coolant circulation loop 1023, and an air conditioning system coolant circulation loop 1024 of the vehicle 300. For example, in the example of fig. 10 and 11, the primary medium circulation circuit 101 may be a battery heat-exchange fluid circulation circuit 1011, the secondary medium circulation circuits 102 may be three, and the three secondary medium circulation circuits 102 may be an engine coolant circulation circuit 1021, an exhaust gas waste heat recovery coolant circulation circuit 1022, and a motor waste heat recovery coolant circulation circuit 1023, respectively, that is, the battery heat-exchange fluid may flow in the primary medium circulation circuit 101, and the engine coolant, the exhaust gas waste heat recovery coolant, and the motor waste heat recovery coolant may flow in the three secondary medium circulation circuits 102, respectively.

The thermal management system 200 is applied to the vehicle 300, wherein the battery 1011a may be disposed on the battery heat-exchange fluid circulation loop 1011, the engine 1021a may be disposed on the engine coolant circulation loop 1021, the motor 1023a may be disposed on the motor waste heat recovery coolant circulation loop 1023, and the exhaust gas waste heat recovery coolant circulation loop 1022 may be disposed on the exhaust gas waste heat recovery coolant circulation loop 1022 a; when the vehicle 300 is in a hybrid mode, the battery 1011a of the vehicle 300 can be heated under an extremely cold condition, at this time, the main medium switch valve can be opened to make the battery heat-exchange liquid circularly flow in the main medium circulation loop 101, the auxiliary medium switch valve can be opened to make the engine coolant circularly flow in the corresponding auxiliary medium circulation loop 102, and make the exhaust gas waste heat recovery coolant circularly flow in the corresponding auxiliary medium circulation loop 102, when the battery heat-exchange liquid, the engine coolant and the exhaust gas waste heat recovery coolant flow to the heat exchanger 100, namely, the battery heat-exchange liquid flows to the first medium channel 111, the engine coolant and the exhaust gas waste heat recovery coolant respectively flow to the corresponding second medium channels 112, heat exchange among the battery heat-exchange liquid, the engine coolant and the exhaust gas waste heat recovery coolant can be realized, and the battery heat-exchange liquid can absorb heat of the engine coolant and the exhaust gas waste heat recovery coolant, thereby rapidly elevating the temperature of the battery 1011 a.

When the vehicle 300 is in the hybrid mode, under the condition that the heat demand of the battery 1011a is not large, the battery 1011a can be insulated, at this time, the main medium switch valve can be opened to enable the battery heat-exchange liquid to circularly flow in the main medium circulation loop 101, the auxiliary medium switch valve can be opened to enable the engine coolant to circularly flow in the corresponding auxiliary medium circulation loop 102, when the battery heat-exchange liquid and the engine coolant flow to the heat exchanger 100, namely, the battery heat-exchange liquid flows to the first medium channel 111, and the engine coolant flows to the corresponding second medium channel 112, the heat exchange between the battery heat-exchange liquid and the engine coolant can be realized, so that the battery heat-exchange liquid can absorb the heat of the engine coolant, and at this time, the auxiliary medium switch valve corresponding to the exhaust gas waste heat recovery coolant circulation loop 1022 can be in a closed state, so that no heat exchange exists between the exhaust gas waste heat recovery coolant and the battery heat-exchange liquid, thereby ensuring that the battery 1011a is at a suitable operating temperature.

When the vehicle 300 is in the hybrid mode, the engine 1021a of the vehicle 300 can be warmed up under an extremely cold condition, at this time, the auxiliary medium switch valve can be opened to enable the engine coolant to circularly flow in the corresponding auxiliary medium circulation loop 102 and enable the exhaust gas waste heat recovery coolant to circularly flow in the corresponding auxiliary medium circulation loop 102, when the engine coolant and the exhaust gas waste heat recovery coolant flow to the heat exchanger 100, namely, the engine coolant and the exhaust gas waste heat recovery coolant respectively flow to the corresponding second medium channels 112, heat exchange between the engine coolant and the exhaust gas waste heat recovery coolant can be realized, the engine coolant can absorb heat of the exhaust gas waste heat recovery coolant, and at this time, the main medium switch valve can be in a closed state, so that the heat of the exhaust gas waste heat recovery coolant cannot be transferred to the battery heat exchange liquid, thereby realizing rapid warming up of the engine 1021a, facilitating rapid start-up of the vehicle 300.

When the vehicle 300 is in the hybrid mode, and the battery 1011a needs to be cooled and cooled, under the condition that the motor 1023a does not work, the main medium switch valve can be opened to make the battery heat-exchange liquid circularly flow in the main medium circulation loop 101, the auxiliary medium switch valve can be opened to make the motor waste heat recovery cooling liquid circularly flow in the corresponding auxiliary medium circulation loop 102, and the motor radiator 1023b is arranged on the motor waste heat recovery cooling liquid circulation loop 1023, so that when the battery heat-exchange liquid and the motor waste heat recovery cooling liquid flow to the heat exchanger 100, namely the battery heat-exchange liquid flows to the first medium channel 111 and the motor waste heat recovery cooling liquid flows to the corresponding second medium channel 112, the heat exchange between the battery heat-exchange liquid and the motor waste heat recovery cooling liquid can be realized, so that the motor waste heat recovery cooling liquid can absorb the heat of the battery heat-exchange liquid, and the motor waste heat recovery cooling liquid can be cooled by the motor radiator 1023b in the flowing process, so as to dissipate heat to the environment (such as air), and realize the temperature reduction of the battery 1011a, and ensure that the battery 1011a is at a proper working temperature.

When the vehicle 300 is in the pure electric mode, the battery 1011a can be insulated, at this time, the main medium switch valve can be opened to enable the battery heat exchange liquid to circularly flow in the main medium circulation loop 101, the auxiliary medium switch valve is opened to enable the motor waste heat recovery cooling liquid to circularly flow in the corresponding auxiliary medium circulation loop 102, when the battery heat exchange liquid and the motor waste heat recovery cooling liquid flow to the heat exchanger 100, namely the battery heat exchange liquid flows to the first medium channel 111, and the motor waste heat recovery cooling liquid flows to the corresponding second medium channel 112, heat exchange between the battery heat exchange liquid and the motor waste heat recovery cooling liquid can be realized, so that the battery heat exchange liquid can absorb heat of the motor waste heat recovery cooling liquid, and the battery 1011a is ensured to be at a proper working temperature.

For another example, in the example of fig. 11, the main medium circulation circuit 101 may be a battery heat-exchange fluid circulation circuit 1011, the auxiliary medium circulation circuits 102 may be three, and the three auxiliary medium circulation circuits 102 may be an engine coolant circulation circuit 1021, an exhaust gas heat recovery coolant circulation circuit 1022, and an air conditioning system refrigerant circulation circuit 1024 of the vehicle 300, respectively, that is, the battery heat-exchange fluid may flow in the main medium circulation circuit 101, and the engine coolant, the exhaust gas heat recovery coolant, and the air conditioning system refrigerant may flow in the three auxiliary medium circulation circuits 102, respectively.

The thermal management system 200 is applied to the vehicle 300, the battery 1011a may be disposed on the battery heat-exchange liquid circulation loop 1011, the engine 1021a may be disposed on the engine coolant liquid circulation loop 1021, and the operation mode of the thermal management system 200 is substantially the same as that of the thermal management system 200 shown in fig. 10, wherein when the vehicle 300 is in a hybrid mode, and the battery 1011a needs to be cooled and cooled, the main medium switch valve may be opened to allow the battery heat-exchange liquid to circulate in the main medium circulation loop 101, the sub-medium switch valve may be opened to allow the refrigerant to circulate in the corresponding sub-medium circulation loop 102, and when the battery heat-exchange liquid and the refrigerant flow to the heat exchanger 100, that is, the battery heat-exchange liquid flows to the first medium channel 111 and the refrigerant flows to the corresponding second medium channel 112, heat exchange between the battery heat-exchange liquid and the refrigerant may be realized, so that heat of the battery 1011a heat-exchange liquid may be absorbed, the forced cooling of the battery 1011a is realized, and the battery 1011a is ensured to be at a proper working temperature.

It is understood that the main medium circulation circuit 101 and the sub medium circulation circuit 102 are also provided as other circulation circuits according to actual needs, and are not limited thereto.

A vehicle 300 according to an embodiment of the third aspect of the invention, as shown in fig. 12, includes the thermal management system 200 of the vehicle 300 according to the embodiment of the second aspect of the invention described above.

According to the vehicle 300 provided by the embodiment of the invention, by adopting the thermal management system 200, the thermal management system 200 operates normally, and the use experience effect of the vehicle 300 is effectively improved.

Other configurations and operations of the vehicle 300 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

The heat exchanger 100 according to an embodiment of the present invention is described in detail in three specific embodiments with reference to fig. 1 to 9. It is to be understood that the following description is illustrative only and is not intended as a specific limitation of the invention.

Example one

In the present embodiment, as shown in fig. 1, 2, and 4-7, the heat exchanger 100 includes a body 1, a connector, and a frame 3, the frame 3 is formed into an annular structure, the frame 3 is sleeved outside the body 1 to form the frame 3 and the body 1 into an integral structure, a plurality of hollowed-out areas 31 are formed on the frame 3 at intervals along a first direction, and each hollowed-out area 31 is formed into an oval shape; the body 1 comprises two heat exchange tube layers 10, the two heat exchange tube layers 10 are sequentially arranged along the second direction, the two heat exchange tube layers 10 are in direct contact with each other, each heat exchange tube layer 10 comprises a plurality of first heat exchange tubes 11 and two second heat exchange tubes 12, the first heat exchange tubes 11 are sequentially arranged along the first direction, the two adjacent first heat exchange tubes 11 are in direct contact with each other, the two second heat exchange tubes 12 are respectively arranged on the two end sides of the first heat exchange tubes 11 along the first direction, and each first heat exchange tube 12 is in direct contact with the adjacent first heat exchange tube 11.

The first heat exchange tubes 11 and the second heat exchange tubes 12 extend along straight lines, the extending directions of the first heat exchange tubes 11 and the second heat exchange tubes 12 are arranged in parallel, the outline of the cross section of each first heat exchange tube 11 is an isosceles triangle of which the vertex angle is an obtuse angle, the outline of the cross section of each second heat exchange tube 12 is a right-angled triangle, a plurality of isosceles triangles corresponding to the first heat exchange tubes 11 are all equal, and straight pin triangles corresponding to the second heat exchange tubes 12 are all equal; isosceles triangles corresponding to two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 are all arranged in a reversed manner in the second direction, the bottom edges of the isosceles triangles corresponding to two adjacent first heat exchange tubes 11 in the same heat exchange tube layer 10 are parallel, and the waist edges of the isosceles triangles are arranged in a close manner, the isosceles triangles corresponding to two adjacent first heat exchange tubes 11 in the adjacent heat exchange tube layer 10 are all arranged in a reversed manner in the second direction, and the bottom edges of the isosceles triangles are arranged in a close manner; one right-angle side of each second heat exchange tube 12 is parallel to the bottom side of the adjacent first heat exchange tube 11 belonging to the same heat exchange tube layer 10, and the oblique side of each second heat exchange tube 12 is closely attached to the waist side of the adjacent first heat exchange tube 11 belonging to the same heat exchange tube layer 10.

A plurality of joints are respectively arranged at two axial ends of the body 1, each joint comprises a first connecting pipe and a plurality of second connecting pipes, each first heat exchange tube 11 defines a first medium channel 111 and three second medium channels 112, the cross-sectional areas of the first medium channel 111 and the second medium channel 112 are kept constant, the first medium channel 111 is communicated with the first connecting pipe, the second medium channel 112 is communicated with the corresponding second connecting pipe, a main medium flows in the first medium channel 111, three different secondary media can respectively flow in the three second medium channels 112, the cross-sectional shapes of the first medium channel 111 and the second medium channel 112 are similar to the cross-sectional shape of the first heat exchange tube 11, the first medium channel 111 is inverted in the center of the first heat exchange tube 11, the three second medium channels 112 are respectively arranged at three corners of the first heat exchange tube 11 to be distributed around the three sides of the first medium channel 111, so that the main medium in the first medium channel 111 can exchange heat with any one or more of the secondary media in the second medium channels 112 in the three second medium channels 112, and the heat exchange amount between the three second medium channels 112 in the first heat exchange tube 11 is very small and can be ignored; each of the second heat exchange tubes 12 defines a third medium channel 121 and a fourth medium channel 122 therein, the cross-sectional areas of the third medium channel 121 and the fourth medium channel 122 are constant, the third medium channel 121 communicates with a corresponding second nipple, the fourth medium channel 122 communicates with a corresponding second nipple, the third medium channel 121 exchanges heat with a corresponding second medium channel 112 in an adjacent first heat exchange tube 11, the fourth medium channel 122 exchanges heat with a corresponding second medium channel 112 in an adjacent first heat exchange tube 11, and the third medium channel 121 and the fourth medium channel 122 are respectively disposed corresponding to two acute angles of the second heat exchange tube 12, so as to effectively utilize the cross-sectional area of the second heat exchange tube 12.

Wherein at least parts of the two second medium channels 112 belonging to different and adjacent two first heat exchange tubes 11 in the same heat exchange tube layer 10 or adjacent heat exchange tube layers 10 are arranged face to directly exchange heat.

In the use process of the heat exchanger 100, a main medium flows in the first medium channel 111, and three secondary media can respectively and correspondingly flow in the three second medium channels 112; when the main medium needs to exchange heat with one kind of secondary medium, the secondary medium flows into one of the three second medium channels 112, so that the main medium in the first medium channel 111 exchanges heat with the secondary medium in the one of the second medium channels 112; when the main medium needs to exchange heat with two secondary media, the two secondary media can respectively and correspondingly flow into two of the three second medium channels 112, so that the main medium in the first medium channel 111 can exchange heat with the two secondary media in the two second medium channels 112; when the main medium needs to exchange heat with three secondary media, the three secondary media can respectively flow into the three second medium channels 112 in a one-to-one correspondence manner, so that the main medium in the first medium channel 111 can exchange heat with the three secondary media in the three second medium channels 112 at the same time; when two secondary media need to exchange heat, the two secondary media can flow into the same heat exchange tube layer 10 or the adjacent heat exchange tube layer 10 respectively and belong to the two second media channels 112 of the two different and adjacent first heat exchange tubes 11.

Example two

As shown in fig. 3, the present embodiment has the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: the body 1 comprises a heat exchanger layer 10.

EXAMPLE III

As shown in fig. 8, the present embodiment has the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: the outer contour of the cross section of the first heat exchange tube 11 forms an isosceles triangle with an acute vertex angle.

Example four

As shown in fig. 9, the present embodiment has the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: at least one partition plate 1121 is provided in one of the three second medium passages 112 to partition the second medium passage 112 into a plurality of sub-passages.

The thermal management system 200 of the vehicle 300 according to embodiments of the invention is described in detail in two specific embodiments with reference to fig. 10 and 11. It is to be understood that the following description is illustrative only and is not intended as a specific limitation of the invention.

Example one

In the present embodiment, as shown in fig. 10, the heat management system 200 includes a heat exchanger 100, a main medium circulation loop 101, and a plurality of auxiliary medium circulation loops 102, the heat exchanger 100 is disposed on the main medium circulation loop 101, a first medium channel 111 is connected to the main medium circulation loop 101, the heat exchanger 100 is disposed on three auxiliary medium circulation loops 102, and three second medium channels 112 of the first heat exchange tube 11 are correspondingly connected to the three auxiliary medium circulation loops 102. Wherein the heat exchanger 100 is the heat exchanger 100 shown in fig. 1.

A main medium switch valve is arranged on the main medium circulation loop 101 to control the connection and disconnection (namely non-connection) of the main medium circulation loop 101, and an auxiliary medium switch valve is arranged on the auxiliary medium circulation loop 102 to control the connection and disconnection of the auxiliary medium circulation loop 102; the main medium circulation loop 101 is a battery heat exchange liquid circulation loop 1011, the three auxiliary medium circulation loops 102 are an engine cooling liquid circulation loop 1021, a tail gas waste heat recovery cooling liquid circulation loop 1022 and a motor waste heat recovery cooling liquid circulation loop 1023 respectively, that is, the battery heat exchange liquid flows in the main medium circulation loop 101, the engine cooling liquid, the tail gas waste heat recovery cooling liquid and the motor waste heat recovery cooling liquid respectively flow in the three auxiliary medium circulation loops 102 correspondingly, the battery heat exchange liquid, the engine cooling liquid, the tail gas waste heat recovery cooling liquid and the motor waste heat recovery cooling liquid are all water, and a water kettle 200a and a water pump 200b are arranged in the main medium circulation loop 101 and each auxiliary medium circulation loop 102. The second medium channels 112 arranged at the top angles of the first heat exchange tube 11 corresponding to the isosceles triangle are connected to the motor waste heat recovery coolant circulation loop 1023, and the two second medium channels 112 arranged at the bottom angles of the first heat exchange tube 11 corresponding to the isosceles triangle are connected to the engine coolant circulation loop 1021 and the tail gas waste heat recovery coolant circulation 1022 respectively.

The thermal management system 200 is applied to the vehicle 300, the battery 1011a is disposed on the battery heat exchange liquid circulation loop 1011, the engine 1021a is disposed on the engine coolant circulation loop 1021, the engine coolant circulation loop 1021 is provided with the engine radiator 1021b, the motor 1023a is disposed on the motor waste heat recovery coolant circulation loop 1023, and the motor waste heat recovery coolant circulation loop 1023 is provided with the motor radiator 1023 b.

When the vehicle 300 is in the hybrid mode, the battery 1011a of the vehicle 300 can be heated under the extremely cold condition, at this time, the battery heat exchange liquid, the engine cooling liquid and the exhaust gas waste heat recovery cooling liquid circularly flow to the heat exchanger 100, namely, the battery heat exchange liquid flows to the first medium channel 111, and the engine cooling liquid and the exhaust gas waste heat recovery cooling liquid respectively flow to the corresponding second medium channels 112, and the battery heat exchange liquid can absorb the heat of the engine cooling liquid and the exhaust gas waste heat recovery cooling liquid.

When the vehicle 300 is in the hybrid mode, under the condition that the heat demand of the battery 1011a is not large, the battery 1011a may be kept warm, and at this time, when the battery heat exchange fluid and the engine coolant circularly flow to the heat exchanger 100, that is, the battery heat exchange fluid flows to the first medium channel 111, and the engine coolant flows to the corresponding second medium channel 112, the battery heat exchange fluid may absorb the heat of the engine coolant.

When the vehicle 300 is in the hybrid mode, the engine 1021a of the vehicle 300 can be warmed up under the extremely cold working condition, and at the moment, the engine coolant and the exhaust gas waste heat recovery coolant circularly flow to the heat exchanger 100, namely, the engine coolant and the exhaust gas waste heat recovery coolant respectively flow to the corresponding second medium channels 112, so that heat exchange between the engine coolant and the exhaust gas waste heat recovery coolant can be realized, and the engine coolant can absorb heat of the exhaust gas waste heat recovery coolant.

When the vehicle 300 is in the hybrid mode, and the battery 1011a needs to be cooled and cooled, under the condition that the motor 1023a does not work, the battery heat exchange liquid flows to the first medium channel 111, and the motor waste heat recovery cooling liquid flows to the corresponding second medium channel 112, so that heat exchange between the battery heat exchange liquid and the motor waste heat recovery cooling liquid is realized, and the battery 1011a is cooled.

When the vehicle 300 is in the pure electric mode, the battery 1011a may be insulated, so that the battery heat-exchange fluid flows to the first medium channel 111, the motor waste heat recovery cooling fluid flows to the corresponding second medium channel 112, and the battery heat-exchange fluid may absorb heat of the motor waste heat recovery cooling fluid.

Example two

As shown in fig. 11, the present embodiment has the same structure as the first embodiment, wherein the same reference numerals are used for the same components, except that: the three secondary medium circulation loops 102 may be an engine coolant circulation loop 1021, an exhaust gas waste heat recovery coolant circulation loop 1022, and an air conditioning system refrigerant circulation loop 1024 of the vehicle 300, that is, the battery heat exchange fluid may flow in the primary medium circulation loop 101, and the engine coolant, the exhaust gas waste heat recovery coolant, and the air conditioning system refrigerant may flow in the three secondary medium circulation loops 102, respectively. At least one partition plate 1121 may be disposed in the second medium channel 112 corresponding to the refrigerant circulation loop 1024 of the air conditioning system to divide the second medium channel 112 into a plurality of sub-channels, so as to improve the heat exchange efficiency.

When the vehicle 300 is in the hybrid mode and the battery 1011a needs to be cooled, the battery heat exchange liquid and the refrigerant can circularly flow to the heat exchanger 100, that is, the battery heat exchange liquid flows to the first medium channel 111 and the refrigerant flows to the corresponding second medium channel 112, so as to realize heat exchange between the battery heat exchange liquid and the refrigerant, so that the refrigerant can absorb heat of the battery heat exchange liquid, and the battery 1011a is forcibly cooled.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. The first feature and the second feature may include one or more of the features.

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

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

Claims

1. A heat exchanger, comprising:

a body including a plurality of first heat exchange tubes arranged in series, the plurality of first heat exchange tubes being disposed independently of one another, each of the first heat exchange tubes defining a first medium channel and a second medium channel, at least a portion of at least one of the second medium channels in one of the adjacent two first heat exchange tubes being disposed in face-to-face relation with at least a portion of at least one of the second medium channels in the other one of the first heat exchange tubes to exchange heat, so that at least portions of two corresponding second medium channels belonging to different and adjacent two of the first heat exchange tubes are in face-contact to directly exchange heat;

and the joint comprises a first connecting pipe and a second connecting pipe, the first connecting pipe is communicated with the first medium channel, and the second connecting pipe is communicated with the second medium channel.

2. The heat exchanger as recited in claim 1 wherein said first heat exchange tube includes one of said first media channels and a plurality of said second media channels disposed around said first media channel such that said first media channel exchanges heat with any of said second media channels.

3. The heat exchanger of claim 1, wherein a plurality of the first heat exchange tubes are arranged in series in a first direction to constitute one heat exchange tube layer, the body comprises a plurality of the heat exchange tube layers arranged in series in a second direction, and at least a portion of at least one of the second medium channels in one of the first heat exchange tubes, of two adjacent first heat exchange tubes in the same or adjacent layers, is arranged to exchange heat with at least a portion of the second medium channel of at least one of the other first heat exchange tubes, in a face-to-face arrangement.

4. The heat exchanger according to claim 3, wherein each of the first heat exchange tubes has a cross section of an isosceles triangle or an equilateral triangle, each adjacent two of the first heat exchange tubes in the same layer are arranged upside down, and the bases are parallel and the waist sides are against each other.

5. The heat exchanger as recited in claim 4 wherein the cross sectional shapes of said first medium channel and said second medium channel are each similar to the cross sectional shape of said first heat exchange tube, said first medium channel being inverted in the center of said first heat exchange tube, said second medium channels being three and being respectively disposed at three corners of said first heat exchange tube so as to be distributed around and outside three sides of said first medium channel.

6. The heat exchanger of any one of claims 1-5, wherein the body further comprises:

the second heat exchange tube defines at least one of a third medium channel and a fourth medium channel, the third medium channel is communicated with the first connecting tubes or the second connecting tubes, the fourth medium channel is communicated with the second connecting tubes, the second heat exchange tube is arranged at the end sides of the plurality of first heat exchange tubes, and exchanges heat with at least one of the first medium channel and the second medium channel in the first heat exchange tube at the end side.

7. The heat exchanger of claim 6, wherein the plurality of first heat exchange tubes are sequentially arranged along a first direction to form a heat exchange tube layer, the body comprises at least one heat exchange tube layer, the cross sections of the first heat exchange tubes are isosceles triangles or equilateral triangles, every two adjacent first heat exchange tubes in the same layer are reversely arranged, the bases of the first heat exchange tubes are parallel, and the waist edges of the first heat exchange tubes are close to each other.

8. The heat exchanger of claim 6, further comprising:

a frame surrounding the body to limit the relative positions of the plurality of first heat exchange tubes and the first and second heat exchange tubes.

9. The heat exchanger of claim 1, further comprising:

a frame surrounding the body to limit the relative positions of the first heat exchange tubes.

10. The heat exchanger of claim 9, wherein the frame has a hollowed-out area thereon.

11. A thermal management system for a vehicle, the thermal management system comprising:

a heat exchanger according to any one of claims 1 to 10;

the heat exchanger is arranged on the main medium circulation loop, and the first medium channel is connected to the main medium circulation loop;

the heat exchanger is arranged on the plurality of secondary medium circulation loops, and the plurality of second medium channels are correspondingly connected on the plurality of secondary medium circulation loops.

12. The vehicle thermal management system according to claim 11, wherein the primary medium circulation circuit is a battery heat exchange fluid circulation circuit, and the plurality of secondary medium circulation circuits includes at least two of an engine coolant circulation circuit, an exhaust gas waste heat recovery coolant circulation circuit, a motor waste heat recovery coolant circulation circuit, and a refrigerant circulation circuit of an air conditioning system of the vehicle.

13. A vehicle characterized by comprising a thermal management system of a vehicle according to claim 11 or 12.