CN117419475A

CN117419475A - Heat exchange assembly and thermal management system

Info

Publication number: CN117419475A
Application number: CN202210811117.2A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Hangzhou Sanhua Research Institute Co Ltd
Current assignee: Hangzhou Sanhua Research Institute Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2024-01-19

Abstract

A heat exchange assembly and a heat management system, the heat exchange assembly comprises a shell and at least one heat exchange main body part; the heat exchange main body part is provided with a first fluid channel and a second fluid channel, and the first fluid channel is not communicated with the second fluid channel in the heat exchange main body part; the heat exchange main body part is at least mostly positioned in the shell, the heat exchange component is provided with a heat capacity medium in the shell, and the heat exchange main body part is in thermal contact with the heat capacity medium; the space where the heat capacity medium is located is not communicated with the first fluid channel, and the space where the heat capacity medium is located is not communicated with the second fluid channel; the material of the heat exchange main body part comprises a heat conduction material, and heat exchange can be carried out between the first fluid channel and the second fluid channel.

Description

Heat exchange assembly and thermal management system

Technical Field

The invention relates to the technical field of heat management, in particular to a heat exchange assembly and a heat management system with the heat exchange assembly.

Background

Heat exchange assemblies are widely used in a variety of thermal management systems, such as household thermal management systems or automotive thermal management systems or commercial thermal management systems, as well as other thermal management systems that require heat dissipation or heating. How to improve the comprehensive energy efficiency of the heat management system or how to make the heat or cold utilization more reasonable and obtain more ideal or comfortable effects is a technical problem that the skilled person strives to solve.

Disclosure of Invention

The application aims to provide a heat exchange assembly which enables the comprehensive energy efficiency of a thermal management system to be relatively high.

A heat exchange assembly comprising a housing, at least one heat exchange body portion; the heat exchange main body part is provided with a first fluid channel and a second fluid channel, and the first fluid channel is not communicated with the second fluid channel in the heat exchange main body part; the heat exchange main body part is at least mostly positioned in the shell, the heat exchange component is provided with a heat capacity medium in the shell, and the heat exchange main body part is in thermal contact with the heat capacity medium; the space where the heat capacity medium is located is not communicated with the first fluid channel, and the space where the heat capacity medium is located is not communicated with the second fluid channel; the material of the heat exchange main body part comprises a heat conduction material, and heat exchange can be carried out between the first fluid channel and the second fluid channel.

The heat management system comprises a refrigerant system and a cooling liquid system, wherein the heat management system comprises a compressor, a throttling element, a heat exchanger, at least one flow path control device, an external heat exchanger and a first heat exchange component; the refrigerant system comprises the compressor, the throttling element and a second fluid flow passage part of the first heat exchange assembly; the coolant system includes at least one pump, the heat exchanger, a first fluid flow path portion of the first heat exchange assembly; the heat capacity medium can exchange heat with the cooling liquid of the first fluid channel, and the heat capacity medium can exchange heat with the cooling medium of the second fluid channel; the refrigerant of the second fluid channel can exchange heat with the cooling liquid of the first fluid channel.

According to the heat exchange assembly and the heat management system provided by the embodiment of the application, the shell is arranged outside the heat exchange main body part, most of the heat exchange main body part is positioned in the shell, the heat exchange main body part is in thermal contact with the heat capacity medium, and under certain conditions, the heat exchange assembly can reduce energy loss and store part of energy in the heat capacity medium; under certain conditions, the heat capacity medium energy is used for providing heat or cold for the thermal management system, so that the operation time of the thermal management system can be reduced, and the comprehensive energy efficiency is improved.

Drawings

FIG. 1 is a schematic view of an embodiment of a heat exchange assembly;

FIG. 2 is a schematic view of another embodiment of a heat exchange assembly;

FIG. 3 is a schematic view of a third embodiment of a heat exchange assembly;

FIG. 4 is a schematic view of a fourth embodiment of a heat exchange assembly;

FIG. 5 is a schematic illustration of one manner of heat exchange body portion of FIG. 3 or FIG. 4;

FIG. 6 is a schematic view of a body portion of a fifth embodiment of a heat exchange assembly; FIG. 7 is a front view of the heat exchange assembly of FIG. 6, FIG. 8 is a schematic cross-sectional view of B-B of the heat exchange assembly of FIG. 7, FIG. 9 is a schematic cross-sectional view of C-C of the heat exchange assembly of FIG. 7, and FIG. 10 is a schematic cross-sectional view of D-D of the heat exchange assembly of FIG. 7; FIG. 11 is a schematic view of one configuration of heat exchange plates of the heat exchange assembly of FIG. 7;

FIG. 12 is a schematic perspective view of a sixth embodiment of a heat exchange assembly, and FIG. 13 is a schematic cross-sectional view in the H-H direction of the heat exchange assembly of FIG. 12; FIG. 14 is a schematic cross-sectional view in the I-I direction of the heat exchange assembly of FIG. 12, FIG. 15 is a schematic cross-sectional view in the J-J direction of the heat exchange assembly of FIG. 12, FIG. 16 is a schematic cross-sectional view in the L-L direction of the heat exchange assembly of FIG. 12, and FIGS. 17 and 18 are schematic views of heat exchange plates of the heat exchange assembly;

fig. 19 is a schematic perspective view of a seventh embodiment of a heat exchange assembly, and fig. 20 is a schematic view of the heat exchange assembly; FIG. 21 is a schematic cross-sectional view of F-F of the heat exchange assembly of FIG. 20, FIG. 22 is a schematic cross-sectional view of E-E of the heat exchange assembly of FIG. 20, FIG. 23 is a schematic view of a first plate of the heat exchange assembly in two directions, FIG. 24 is a schematic view of a second plate of the heat exchange assembly, and FIG. 25 is a schematic view of a third plate of the heat exchange assembly;

FIG. 26 is a schematic view of yet another version of the heat exchange body of FIG. 3 or FIG. 4;

FIG. 27 is a schematic diagram of a thermal management system.

10 compressor, 101 heat capacity, 102 housing, 103 insulation, 107 feed, 108 plug, 11 second heat exchange assembly, 12 throttling element, 13 first heat exchange assembly, 14 second flow control device, 141 first interface, 142 second interface, 143 third interface, 144 fourth interface, 15 first flow control device, 151 first connection interface, 152 second connection port, 153 third connection port, 154 fourth connection port, 201 first fluid channel, 2010 first inter-plate channel, 2011 first interface portion, 2012 second interface portion, 2013 first portion of first fluid channel, 2014 second portion of first fluid channel; 202 second fluid channels 2020 second plate interspaces, 2021 third interface portions, 2022 fourth interface portions, first portions of 2023 second fluid channels, second portions of 2024 second fluid channels, 203 heat medium, 2030 third plate interspaces, 21 pairs of external heat exchangers, 22 heat exchangers, 23 second pumps, 24 first pumps, 301 first wall portions, 302 second wall portions, 303 third wall portions, 40 heat exchange body portions, 401 first wall portions, 402 second wall portions, 403 third wall portions, 41 first connection portions, 42 second connection portions, 43 third connection portions, fourth connecting portion 44, 501 first wall portion, 502 second wall portion, 503 third wall portion, 51 first plate, 511 convex portion, 512 annular convex portion, 513 notch portion, 52' second wall portion, 521 concave portion, 522 annular convex portion, 523 notch portion, 53 third plate, 531 annular convex portion, 54 receiving portion, 55 side plate, 6, 60 heat exchange plate, 601 first hole, 602 second hole, 603 third hole, 604 fourth hole, 605 fifth hole, 606 sixth hole, 61 convex portion, 611 fitting convex portion, 62 annular convex portion, 63 concave portion, 631 fitting concave portion, 66 first wall portion, 67 second wall portion

Detailed Description

The heat exchange assembly provided by the invention can have various structural forms and can be applied to heat management systems such as commercial or vehicle heat management systems or various systems needing heat management such as heat management of batteries, heat management of electric devices and the like.

The heat exchange assembly of the technical scheme can be used for carrying out heat exchange between two fluids and storing energy, and comprises a first fluid channel and a second fluid channel, wherein the first fluid channel is not communicated with the second fluid channel in the heat exchange assembly, and the heat exchange assembly also comprises a heat capacity part for storing energy under the condition that the energy in the heat exchange assembly is beneficial to a system, and the heat capacity part can be filled with heat capacity medium, and one of the heat capacity medium is relatively and hermetically arranged in the heat exchange assembly or connected with an energy storage container of the system; the heat capacity part can store heat or cool; or the heat capacity medium can be one of the first fluid and the second fluid, and a space is arranged in the heat exchange assembly and is communicated with one of the first fluid channel or the second fluid channel as the heat capacity part, so that the heat capacity medium is not stored in the heat capacity part in advance. The heat capacity portion is not in communication with at least one of the first fluid passage and the second fluid passage, and the heat capacity portion may not be in communication with both of the first fluid passage and the second fluid passage. In a specific application, the heat capacity medium of the heat capacity part can exchange heat with the first fluid flowing in the first fluid channel, and the heat capacity medium of the heat capacity part can exchange heat with the second fluid flowing in the second fluid channel, so that the second fluid flowing in the second fluid channel can exchange heat with the first fluid flowing in the first fluid channel. When the heat capacity is not communicated with both the first fluid channel and the second fluid channel, the heat exchange assembly can comprise a first wall part, a second wall part and a third wall part which have relatively good heat conduction, wherein the wall part capable of exchanging heat between the first fluid channel and the heat capacity is defined as the first wall part, or the wall part capable of exchanging heat between the first fluid channel and the heat capacity medium is defined as the first wall part; defining a wall part capable of exchanging heat between the second fluid channel and the heat containing part as a second wall part, or defining a wall part capable of exchanging heat between the second fluid channel and the heat containing medium as a second wall part; defining a wall part capable of exchanging heat between the first fluid channel and the second fluid channel as a third wall part; such that the first fluid passage is at least partially located on one side of the first wall portion and the heat receptacle is at least partially located on the other side of the first wall portion; at least part of the second fluid channel is positioned on one side of the second wall part, and at least part of the heat capacity part is positioned on the other side of the second wall part; the first fluid passage is at least partially located on one side of the third wall portion, and the second fluid passage is at least partially located on the other side of the third wall portion; the materials of the first wall part, the second wall part and the third wall part comprise heat conducting materials, such as aluminum alloy, magnesium alloy, copper materials, steel materials, such as stainless steel, or heat conducting organic materials or composite materials, etc.

The heat capacity medium is made of a material with relatively large specific heat capacity, and can be a material which can generate phase change in a use temperature range or a material which can not generate phase change in the use temperature range. The specific heat capacity of the heat capacity medium is larger than or equal to the specific heat capacity of water, the heat conductivity of the first wall part, the second wall part and the third wall part is larger than or equal to the heat conductivity of stainless steel, the heat conductivity of the third wall part is larger than or equal to the heat conductivity of the first wall part, and the heat conductivity of the third wall part is larger than or equal to the heat conductivity of the second wall part. In case the energy in the heat exchange assembly is advantageous for the system, the heat exchange assembly may further comprise a heat retaining portion, the heat receiving portion being at least mostly located inside the heat retaining portion. The heat exchange assembly can be mostly positioned on the inner side of the heat preservation part so as to reduce energy waste. Under the condition that the energy in the heat exchange assembly is unfavorable to the system, the heat preservation part is not arranged, the heat capacity part of the heat exchange assembly is beneficial to accelerating heat transfer so as to improve the energy efficiency, and the structure of the heat exchange assembly can be correspondingly adjusted.

Referring now to fig. 1, which is a schematic illustration of one embodiment of a heat exchange assembly, several configurations of heat exchange assemblies are described, with energy within the heat exchange assembly being beneficial to the system. The relation between the flow channels is only shown here, and some detailed structures such as the feeding part and the connecting part are not shown in the drawings. The heat exchange assembly has a heat capacity 101, the heat capacity 101 having a heat capacity medium 203. The heat exchange assembly comprises a first fluid channel 201 and a second fluid channel 202, wherein the first fluid channel 201 comprises a first part 2013 and a second part 2014, the first part 2013 of the first fluid channel 201 is adjacent to the second fluid channel 202 and can exchange heat, a third wall part 303 is arranged between the first part 2013 and the second part, the inner side of the third wall part 303 is the first part of the first fluid channel, and the outer side of the third wall part 303 is the second fluid channel. The material of the third wall portion 303 is a material that is relatively thermally conductive so that heat can be exchanged therebetween relatively efficiently. The second fluid channel 202 is disposed adjacent to the space where the heat capacity medium is located and can exchange heat, a second wall portion 302 is disposed between the heat capacity medium 203 and the second fluid channel 202, the second fluid channel is disposed inside the second wall portion 302, and the heat capacity medium 203 is disposed outside the second wall portion 302. The material of the second wall portion 302 is a material that is relatively thermally conductive so that heat can be exchanged therebetween. The second portion 2014 of the first fluid channel 201 is disposed adjacent to the space where the heat capacity medium is located and can perform heat exchange, a first wall portion 301 is disposed between the heat capacity medium 203 of the heat capacity portion 101 and the second portion 2014 of the first fluid channel, the heat capacity medium 203 is disposed inside the first wall portion 301, and the first fluid channel second portion 2014 is disposed outside the first wall portion 301. The material of the first wall portion 302 is a material that is relatively thermally conductive so that heat can be exchanged therebetween. The heat exchange assembly further has a housing 102, and a heat preservation part 103 is provided outside the housing in order to reduce energy loss of the heat exchange assembly. The materials of the wall parts can be the same or different, the heat conductivity coefficient of the third wall part is more than or equal to that of the first wall part, and the heat conductivity coefficient of the first wall part is more than or equal to that of the second wall part; when the heat exchange assembly is in practical application, the fluids in the two flow channels can be subjected to relatively effective heat exchange, for example, the first flow channel is cooling liquid, the second flow channel is cooling medium, and the cooling liquid can perform better heat exchange, so that the requirement of temperature management of a thermal management system is met; when the heat or the cold of the refrigerant is sufficient, the heat or the cold of the heat capacity medium of the heat capacity part is stored, and when the heat or the cold of the heat capacity medium of the heat capacity part is stored to a certain extent, the compressor and the like of the system can stop running for a period of time, and during the period of time, the cooling liquid and the heat capacity medium of the heat capacity part can exchange heat, so that the aim of saving energy is achieved. Meanwhile, the temperature change of the cooling liquid is relatively mild due to the arrangement, so that the temperature cannot be rapidly changed when heat or cold is required, and the comfort level is improved or the isothermal change of the battery is relatively stable.

In the above embodiments, the first flow channel is divided into two parts, but other structures are also possible; the following is one embodiment of the second flow path in two, referring to fig. 2, fig. 2 is a schematic view of another embodiment of the heat exchange assembly. Here again only the relation between the several flow channels is illustrated, the heat exchange assembly having a heat capacity 101, in which heat capacity 101 a heat capacity medium 203 may be stored. The heat exchange assembly comprises a first fluid channel 201, a second fluid channel 202, the second fluid channel 202 comprising a first portion 2023 and a second portion 2024, the first portion 2023 of the second fluid channel 202 being arranged adjacent to the first fluid channel 201 and being capable of heat exchange, a third wall portion 303 being arranged therebetween, the inner side of the third wall portion 303 being the first portion of the second fluid channel, the outer side of the third wall portion 303 being the first fluid channel. The material of the third wall portion 303 is a material that is relatively thermally conductive so that heat can be exchanged therebetween relatively efficiently. The first fluid channel 201 is disposed adjacent to the space where the heat capacity medium is located, the first fluid can exchange heat with the heat capacity medium 203 of the heat capacity portion 101, a first wall portion 301 is disposed between the heat capacity medium 203 and the first fluid channel 201, the first fluid channel is disposed inside the first wall portion 301, and the heat capacity medium 203 is disposed outside the first wall portion 301. The material of the first wall 301 is a material with relatively good heat conductivity, so that heat exchange can be performed between the two materials. The second portion 2024 of the second fluid channel 202 is arranged adjacent to the heat capacity portion and is capable of heat exchange, a second wall portion 302 is arranged between the heat capacity medium 203 and the second portion 2024 of the second fluid channel, the inner side of the second wall portion 302 is the heat capacity medium 203, and the outer side of the second wall portion 302 is the second portion 2024 of the second fluid channel. The material of the second wall portion 302 is a material that is relatively thermally conductive so that heat can be exchanged therebetween. The heat exchange assembly also has a housing 102, and a heat preservation portion 103 may be provided outside the housing in order to reduce energy loss of the heat exchange assembly. The materials of the wall parts can be the same or different, the heat conductivity coefficient of the third wall part is more than or equal to that of the first wall part, and the heat conductivity coefficient of the first wall part is more than or equal to that of the second wall part; when the heat exchange assembly is in practical application, the heat exchange assembly can firstly perform relatively effective heat exchange between the fluids in the two flow channels, and heat or cold is stored in the heat capacity medium in the heat capacity part. The remainder of the description will be omitted from the above embodiments.

The heat exchange assembly of the two embodiments comprises at least four connecting parts (not shown in the figure) of a first connecting part, a second connecting part, a third connecting part and a fourth connecting part, wherein the connecting parts are used for being matched and connected with a system, the first connecting part and the second connecting part are respectively provided with a communication interface for a first fluid channel, and the third connecting part and the fourth connecting part are respectively provided with a communication interface for a second fluid channel.

Another embodiment is described below. Referring to fig. 3 and 5, fig. 3 is a schematic view of a third embodiment of a heat exchange assembly; fig. 5 is a schematic view of a heat exchange body portion of the heat exchange assembly. The heat exchange assembly includes a housing 102, at least one heat exchange body portion 40. The heat exchange body 40 is capable of exchanging heat between two fluids, the heat exchange body 40 has a first connection portion 41, a second connection portion 42, a third connection portion 43, and a fourth connection portion 44 for mating connection, the first connection portion 41 and the second connection portion 42 have communication interfaces for the first fluid passage, and the third connection portion 43 and the fourth connection portion 44 have communication interfaces for the second fluid passage. The main part of the heat exchange main body 40 is located in the shell, and the first connecting part 41, the second connecting part 42, the third connecting part 43 and the fourth connecting part 44 can be in sealing connection with the shell and can be partially exposed out of the shell respectively so as to facilitate the connection and installation of the system; the first, second, third, and fourth connection portions 41, 42, 43, and 44 may also communicate with the adapter tube. The connecting pipes are in sealing connection with the shell, and parts of the connecting pipes can be exposed out of the shell respectively, so that the connection and the installation are convenient. The heat exchange assembly comprises a heat containing part 101 and a heat preservation part 103, wherein the heat preservation part 103 is positioned outside the shell 102 so as to reduce heat loss of the heat containing part and the like in heat exchange with the external environment. The shell is filled with a heat capacity medium 203, specifically, a feeding part 107 can be arranged at one side of the shell, and after the heat capacity medium 203 is filled into the shell, the feeding part is sealed relatively by a plug 108 and the shell 102; in addition, the filling can be performed by providing a filling port. At least most of the periphery of the heat exchange main body part is provided with a heat capacity medium or immersed in the heat capacity medium, and both sides of the heat exchange main body part can exchange heat with the heat capacity medium, for example, both sides of the heat exchange main body part are respectively provided with a first wall part 401 and a second wall part 402; the first wall 401 is a part of the first fluid channel, the second wall 402 is a part of the second fluid channel, or the first wall 401 can be contacted with the first fluid and the heat medium, when the system is used, the first fluid such as cooling liquid can flow into the heat exchange main body part from the first interface part 2011 of the first fluid channel, exchange heat with the second fluid such as refrigerant of the adjacent second fluid channel in the heat exchange main body part, and flow out of the heat exchange main body part from the second interface part 2012 of the first fluid channel, the second fluid such as refrigerant can flow into the second fluid channel of the heat exchange main body part from the third interface part 2021, exchange heat with the first fluid of the adjacent first fluid channel in the heat exchange main body part, and flow out of the heat exchange main body part from the fourth interface part 2022; and at the same time, the heat exchange with the heat capacity medium can be realized, and the heat capacity medium can absorb the energy possibly emitted into the environment. The second wall portion 402 can be in contact with the second fluid and the heat capacity medium, for example, the second fluid is located on the inner side of the second wall portion 402, the heat capacity medium is located on the outer side of the second wall portion 402, and the second fluid and the heat capacity medium are separated by the second wall portion 402 and are adjacently located; the second fluid is capable of heat exchanging with the heat capacity medium outside the second wall portion 402. Similarly, the inner side of the first wall part 401 is a first fluid, the outer side of the first wall part 401 is a heat capacity medium, and the first fluid and the heat capacity medium are separated by the first wall part 401 and are adjacently arranged; in this way, the first fluid can also exchange heat with the heat-containing medium outside the first wall 401 in the heat exchange body. The rest parts of the heat exchange main body part can also exchange heat if temperature difference exists. The heat exchange main body part is internally provided with a third wall part (not shown in the figure), one side of the third wall part is provided with a first flow passage, and the other side is provided with a second flow passage. The heat exchange assembly may include more than two heat exchange body portions, as shown in fig. 3, with three heat exchange body portions disposed in substantially parallel, e.g., a first fluid is divided into three portions, each portion is connected to a corresponding heat exchange body portion, and a second fluid is also divided into three portions, and flows out together in parallel after heat exchange.

The above heat exchange main body part is single-flow, or may be double-flow or multi-flow, as shown in fig. 4, and fig. 4 is a schematic diagram of a fourth embodiment of the heat exchange assembly. The main difference between this embodiment and the above third embodiment is that the flow path of the fluid in the heat exchange main body is increased, and the rest can be referred to the third embodiment.

The heat exchange assembly may also be of other construction, with reference to fig. 6-11, fig. 6 being a schematic view of a fifth embodiment of the heat exchange assembly, fig. 7 being a front view of the heat exchange assembly, fig. 8 being a schematic cross-sectional view of B-B of the heat exchange assembly of fig. 7, fig. 9 being a schematic cross-sectional view of C-C of the heat exchange assembly of fig. 7, fig. 10 being a schematic cross-sectional view of D-D of the heat exchange assembly of fig. 7; fig. 11 is a schematic view of a heat exchange plate of the heat exchange assembly.

The heat exchange assembly comprises a first connecting part 41, a second connecting part 42, a third connecting part 43 and a fourth connecting part 44 for matched connection, wherein the first connecting part 41 and the second connecting part 42 are provided with communication interfaces for the first fluid channel, and the third connecting part 43 and the fourth connecting part 44 are provided with communication interfaces for the second fluid channel. The heat exchange assembly is provided with a heat capacity part 101, and specifically, a feeding part 107 can be arranged at one side of the heat exchange assembly, and after the heat capacity medium 203 is filled, the heat capacity medium is sealed by a plug 108; or by providing a filling port. The heat exchange assembly has a first fluid channel 201, a second fluid channel 202, the first fluid channel 201 being separated from communication between the heat exchange assembly and the second fluid channel. Specifically, the heat exchange assembly has a first inter-plate channel 2010, a second inter-plate channel 2020, a third inter-plate channel 2030, the first fluid channel 201 comprising the first inter-plate channel 2010, the second fluid channel 202 comprising the second inter-plate channel 2020, the third inter-plate channel 2030 for storing a heat capacity medium or for circulating a heat capacity medium, being part of the heat capacity. At least one first inter-plate channel 2010 is disposed adjacent to the second inter-plate channel 2020 such that the first fluid flowing through the first inter-plate channel 2010 is capable of exchanging heat with the second fluid flowing through the second inter-plate channel, at least one first inter-plate channel 2010 is disposed adjacent to the third inter-plate channel 2030 such that the first fluid flowing through the first inter-plate channel 2010 is capable of exchanging heat with the heat medium of the third inter-plate channel, and at least one second inter-plate channel 2020 is disposed adjacent to the third inter-plate channel 2030 such that the second fluid flowing through the second inter-plate channel 2020 is capable of exchanging heat with the heat medium of the third inter-plate channel.

The heat exchange assembly has a plurality of heat exchange plates 6, adjacent heat exchange plates 6 being identical in construction but differing by an angle, in this embodiment 120 degrees. The heat exchange plate 6 has six corner holes, and specifically includes: the first hole 601, the second hole 602, the third hole 603, the fourth hole 604, the fifth hole 605 and the sixth hole 606 are divided into three groups, two adjacent holes in this embodiment are one group, the difference between each group of holes is 120 degrees, the first hole 601 and the second hole 602 are one group, the third hole 603 and the fourth hole 604 are one group, the fifth hole 605 and the sixth hole 606 are one group, and each hole of the heat exchange plate corresponds to one hole of the adjacent heat exchange plate, so that a flow channel is formed. The angle of the first hole and the third hole is the same as that of the second hole and the fourth hole, and the distance between the first hole and the third hole is the same as that between the second hole and the fourth hole; the angle of the third hole and the fifth hole is the same as the angle of the fourth hole and the sixth hole, and the distance between the third hole and the fifth hole is the same as the distance between the fourth hole and the sixth hole; the angle of the first hole and the fifth hole is the same as the angle of the second hole and the sixth hole, and the distance between the first hole and the fifth hole is the same as the distance between the second hole and the sixth hole. A convex portion 61 for separation may be provided between adjacent heat exchange plates, and annular convex portions 62 are provided around four of the six holes, and the portions where the third hole 603, the fourth hole 604, the fifth hole 605, and the sixth hole 606 are located have annular convex portions 62 protruding in the same direction, and the annular convex portions 62 protrude from the first wall surface 66. The convex portion 61 of the present embodiment is provided on the heat exchange plate in the same direction as the annular convex portion 62, and may be different from the annular convex portion, as long as the separation is achieved by fitting adjacent heat exchange plates. The protruding portions 61 and the annular protruding portions 62 protrude to substantially the same height, and are sealed with respect to adjacent heat exchange plates by welding, and the protruding portions 61 may be formed integrally with the heat exchange plates, or may be provided separately and fixed between the adjacent heat exchange plates by welding. The convex portion 61 is disposed in the plate channel corresponding to the first fluid or the second fluid, and the convex portion 61 is at least partially disposed between the group of holes communicated with the plate channel, so that the travel of the fluid flowing from the plate channel is prolonged, the heat exchange area is increased, the first fluid and the second fluid can exchange heat relatively better, and the convex portion 61 can be strip-shaped or curve-shaped. Referring to fig. 9 and 11, the first fluid entering from the interface of the first connection portion 41 enters the corresponding first inter-plate channels 2010 through the second holes 602, respectively, flows from the half side where the second holes 602 are located due to the convex portions 61, bypasses the convex portions, and flows to the first holes 601 through the other half side. Referring to fig. 10 and 11, the second fluid from the interface of the fourth connection 44 enters the respective second inter-plate channels 2020 through one of the holes, flows from the half where the hole is located due to the projection 61, and bypasses the projection and flows through the other half to the other hole of the set of holes. The layer of the heat capacity medium can be optionally provided with the convex part, for example, the heat capacity medium is relatively closed, the convex part is not needed, and the heat capacity medium is also preferably provided if the heat capacity medium is communicated with an energy storage container of the system and the like. The convex part can be integrated with the heat exchange plate or can be split, and is fixed by welding when the main body of the heat exchange assembly is welded.

The heat exchange assembly between adjacent heat exchange plates has plate-to-plate channels, two of which are in communication with the plate-to-plate channels, as shown in fig. 8, 9, 10, at least three of which are part of the first fluid channel 201 and one of which is part of the second fluid channel 202, and one of which has or is in communication with a heat-tolerant medium 203, defined herein as: a first inter-plate channel, a second inter-plate channel, and a third inter-plate channel. The heat exchange assembly comprises a first wall part 401, a second wall part 402 and a third wall part 403, wherein heat transfer can be realized between the heat capacity medium 203 in the heat capacity part 101 and the first fluid channel 201 through the first wall part 401, one side of the first wall part 401 is provided with the heat capacity medium 203 or the heat capacity part, and the other side of the first wall part 301 is provided with a part of the first fluid channel; heat transfer can be realized between the heat capacity medium 203 in the heat capacity part 101 and the second fluid channel 202 through the second wall part 402, one side of the second wall part 402 is the heat capacity medium 203 or the heat capacity part storing the heat capacity medium 203, and the other side of the second wall part 402 is a part of the second fluid channel; heat transfer between the second fluid channel 202 and the first fluid channel 201 is achieved by means of a third wall portion 403, one side of the third wall portion 403 being part of the second fluid channel 202 and the other side of the third wall portion 403 being part of the first fluid channel.

Thus, when the system is used, a first fluid such as a cooling liquid can flow into the heat exchange assembly from the interface of the first connecting part 41, exchange heat with a second fluid such as a cooling medium of an adjacent second fluid channel through the first fluid channel, and flow out from the interface of the second connecting part 42; the second fluid, such as a refrigerant, can flow into the heat exchange assembly from the third connection 43, exchange heat with the first fluid of the adjacent first fluid passage, and flow out of the interface of the fourth connection 44. The material of the heat exchange plate adopts a material with relatively good heat conduction, so that relatively effective heat exchange can be performed. At the same time, the heat capacity medium 203 can exchange heat with the second fluid and the first fluid, so that the temperature change of the cooling liquid is relatively mild, the temperature is not changed rapidly, and the comfort is improved or the isothermal change of the battery is relatively mild. When the heat or cold of the refrigerant is sufficient, the heat or cold is stored in the heat-capacity medium, and when the heat or cold is stored in the heat-capacity medium to a certain extent, the operation of a compressor and the like of the system can be stopped for a period of time, and during the period of time, the cooling liquid and the heat-capacity medium can be subjected to heat exchange, so that the aim of saving energy is fulfilled. In the above embodiments, the heat capacity medium is relatively sealed in the heat exchange assembly, in addition, in order to make the system efficiency higher, an energy storage container may be further arranged in the system, so that the heat capacity medium of the heat exchange assembly is communicated with the energy storage container of the system, two interface parts are arranged in the heat exchange assembly, when the heat or cold of the system is sufficient, the heat capacity medium flows with the heat capacity medium of the energy storage container, and the redundant heat or cold is brought to the energy storage container, so that more heat or cold is stored, and when the compressor and the like stop running, the heat or cold of the heat capacity part or the energy storage container can be released to the heat exchange assembly, so that the heat exchange of fluid is realized, and the comprehensive energy efficiency of the system is improved. If can be applied to the system and when heating the operating mode, will some unnecessary heat store in heating, when the system defrosting, utilize this part heat can continue the heat supply, perhaps be used for defrosting, make defrosting relatively faster, experience when improving defrosting to improve relative comfort level. In addition, a heat preservation part can be arranged on the heat exchange component so as to reduce energy loss.

The heat exchanger plate of the heat exchanger assembly may be further modified, see fig. 12-18, fig. 12 being a schematic perspective view of a sixth embodiment of the heat exchanger assembly, fig. 13 being a schematic sectional view in the H-H direction of the heat exchanger assembly shown in fig. 12, fig. 14 being a schematic sectional view in the I-I direction of the heat exchanger assembly shown in fig. 13, fig. 15 being a schematic sectional view in the J-J direction of the heat exchanger assembly shown in fig. 13, fig. 16 being a schematic sectional view in the L-L direction of the heat exchanger assembly shown in fig. 13, fig. 17, 18 being schematic sectional views in both directions of the heat exchanger plate of the heat exchanger assembly. The heat exchange assembly comprises a first connecting part 41, a second connecting part 42, a third connecting part 43 and a fourth connecting part 44 for matched connection, wherein the first connecting part 41 and the second connecting part 42 are provided with communication interfaces for the first fluid channel, and the third connecting part 43 and the fourth connecting part 44 are provided with communication interfaces for the second fluid channel. The heat exchange component is provided with a heat capacity part 101, the heat exchange component is filled with a heat capacity medium 203 in the heat capacity part 101, and particularly, a feeding part 107 can be arranged at one side of the heat exchange component, and after the heat capacity medium 203 is filled, the heat capacity medium is sealed by a plug 108; in addition, the filling can be performed by providing a filling port. The heat exchange assembly has a first fluid channel 201, a second fluid channel 202, the first fluid channel 201 being separated from communication between the heat exchange assembly and the second fluid channel. The first fluid channel 201 has a portion disposed adjacent to and capable of heat exchange with a portion of the second fluid channel, the first fluid channel 201 has a portion disposed adjacent to and capable of heat exchange with a heat medium, and the second fluid channel 202 has a portion disposed adjacent to and capable of heat exchange with a heat medium.

The heat exchange assembly has a plurality of heat exchange plates 60, at least some adjacent heat exchange plates 60 being identical in construction but differing by an angle, in particular 120 degrees in this embodiment. The heat exchange plate 60 has a first hole 601, a second hole 602, a third hole 603, a fourth hole 604, a fifth hole 605, and a sixth hole 606, the six holes are divided into three groups, two adjacent holes of this embodiment are one group, each hole differs from the other group by 120 degrees, the heat exchange plate 60 is provided with a convex portion 61, a fitting convex portion 611 is provided at the opposite middle portion of the heat exchange plate, the fitting convex portion 611 further protrudes from the convex portion 61, specifically, a convex portion is provided protruding from the first wall surface 66 to the outside, a fitting convex portion is provided protruding from the convex portion to the outside, and is fitted with a concave groove formed at the opposite middle portion of the second wall surface 67 of the adjacent heat exchange plate, that is, after assembly, the fitting convex portion 611 is located at a concave groove position formed at the back of the convex portion of the adjacent heat exchange plate, and the direction in which the convex portion 61 protrudes is the same as the annular convex portion 62, and the protruding height of the convex portion 61 is approximately the same as the protruding height of the annular convex portion 62 is achieved by welding; the second wall 67 is formed with a recess 63 recessed from the second wall 67 and a mating recess 631 recessed from the recess 63, the mating projection 611 having a projection height substantially equal to the depth of the recess. The shape or width of the mating protrusion 611 is adapted to the groove for weld fixation and relative sealing. This can reduce the arrangement of parts.

The heat exchange assembly between adjacent heat exchange plates has plate-to-plate passages, any of which communicates with two holes or passages therein, as shown in fig. 13-18, with at least three of the plate-to-plate passages having one layer being part of the first fluid passage 201 and another layer being part of the second fluid passage 202 and a layer having or being in fluid communication with the heat capacity medium 203. The heat exchange assembly comprises a first wall portion 401, a second wall portion 402, and a third wall portion 403, respectively, wherein the first wall portion 401, the second wall portion 402, and the third wall portion 403 may be part of a heat exchange plate, and are not separate components, but are introduced for clarity of description. The heat capacity medium 203 in the heat capacity part 101 and the first fluid channel 201 are separated by a first wall part 401, and heat is transferred, one side of the first wall part 401 is the heat capacity medium 203 or the heat capacity part, and the other side of the first wall part 301 is a part of the first fluid channel; the heat capacity medium 203 and the second fluid channel 202 are separated by a second wall part 402, and heat is transferred, one side of the second wall part 402 is the heat capacity medium 203 or the heat capacity part, and the other side of the second wall part 402 is a part of the second fluid channel; the second fluid channel 202 is separated from the first fluid channel 201 by a third wall 403 and transfers heat, one side of the third wall 403 being part of the second fluid channel 202 and the other side of the third wall 403 being part of the first fluid channel. In one embodiment, the protrusion 61 extends from the approximately middle portions of the first hole 601 and the second hole 602 in the heat exchange plate center direction, the protrusion 61 protrudes at approximately the same height as the pitch of the adjacent heat exchange plates, the mating protrusion 611 has approximately the same height as the depth of the groove 63 or the height of the mating protrusion 611 is slightly lower than the depth of the groove 63, and the mating protrusion 611 has approximately the same width as the groove 63 or the width of the mating protrusion 611 is slightly smaller than the width of the groove 63. Identical here means that the two can cooperate to achieve a welded seal, but not exactly identical. The heat capacity medium can be sealed in the heat exchange assembly, or can be connected with an energy storage container of the system through an interface part, and the heat capacity medium can store energy into the energy storage container after the heat exchange of the heat exchange assembly in operation. The operation of this embodiment is the same as that of the fifth embodiment above and will not be repeated here.

In the above embodiment, the heat-containing portion may be an integral structure with a component of the fluid flow channel in the heat exchange assembly, and is welded and fixed when the heat exchange assembly is assembled, and after the welding is completed, the heat-containing portion is filled with a heat-containing medium through the feeding portion or the filling port, and then is plugged by a plug or other structures, or the heat-containing portion is connected with an energy storage container of the system through two interfaces. In addition, the heat exchange assembly may be of other configurations, referring to fig. 19-25, fig. 19 is a schematic perspective view of a seventh embodiment of the heat exchange assembly, fig. 20 is a schematic front view of the heat exchange assembly, fig. 21 is a schematic cross-sectional view of F-F of the heat exchange assembly, fig. 22 is a schematic cross-sectional view of E-E of the heat exchange assembly shown in fig. 20, fig. 23 is a schematic view of a first plate of the heat exchange assembly in two directions, fig. 24 is a schematic view of a second plate of the heat exchange assembly, and fig. 25 is a schematic view of a third plate of the heat exchange assembly. The heat exchange assembly comprises a first connecting part 41, a second connecting part 42, a third connecting part 43 and a fourth connecting part 44, wherein the first connecting part 41 and the second connecting part 42 are provided with communication interfaces for the first fluid channel, and the third connecting part 43 and the fourth connecting part 44 are provided with communication interfaces for the second fluid channel. The connection part can be in the form of a connecting pipe as in the figure, or can be in the form of a direct interface without a connecting pipe.

The heat exchange assembly comprises a heat exchange main body part 40 and a heat capacity part 101, wherein the heat exchange main body part is provided with a heat exchange plate: specifically, the first plate 51, the second plate 52 and the third plate 53 are included, at least a part of the first plate 51 is disposed adjacent to the second plate 52, at least a part of the second plate 52 is disposed adjacent to the third plate 53, and at least a part of the third plate 53 is disposed adjacent to the first plate 51. The heat exchange body is fixed and sealed relatively by welding, and comprises a first fluid channel 201 and a second fluid channel 202, wherein the first fluid channel 201 comprises a flow channel formed between the adjacent first plate 51 and second plate 52, and the second fluid channel 202 comprises a flow channel formed between the adjacent third plate 53 and first plate 51. In use in the system, fluid of the first fluid flows through the first fluid channel 201 and is in heat exchange relationship with the second fluid of the second fluid channel, and the second fluid flows through the second fluid channel 202 and is in heat exchange relationship with the first fluid of the first fluid channel. The heat exchange body has a receiving portion 54, the receiving portion 54 being located between adjacent second and third plates 52, 53. The heat container 101 may be inserted into the housing portion, and the wall portion of the heat container 101 may be in contact with the wall portion forming the housing portion to perform heat exchange, or after the heat container 101 is inserted, a heat conductive adhesive or the like may be poured so as to make the two in better thermal contact. The heat capacity portion 101 has therein a heat capacity medium 203, and the heat capacity medium 203 can exchange heat with two fluids on both sides. The first plate 51 of the present embodiment includes an annular convex portion 512 around two corner holes, and a convex portion 511 partially located between the other two corner holes, the convex directions and the convex heights of the annular convex portion 512 and the convex portion 511 being substantially the same; the second plate and the third plate are also provided with four corner holes, and the corner holes of the three plates are respectively corresponding to form a part of two groups of flow channels; the second plate has a recess 521, with an annular protrusion 522 at the periphery of a set of angular holes; the third plate has annular protrusions 531 around the four corner holes, and of course, the arrangement of the annular protrusions around the corner holes of the three plates may be adjusted to make the first fluid channel communicate with one of the two plates, such as the space between the first plate and the second plate, and the second fluid channel communicate with the other of the two plates, such as the space between the first plate and the third plate, and relatively isolated from other spaces. The first plate 51, the second plate 52, and the third plate 53 are arranged in this embodiment; the heat exchange body may be divided into two or more groups, and the first plate 51, the second plate 52, and the third plate 53 in each group may be arranged in this order.

Similarly, the heat exchange assembly has a first wall portion 501, a second wall portion 502, and a third wall portion 503, wherein the first wall portion 501 includes a portion of the first plate 51, a portion of the second plate 52, and a portion of the wall portion of the heat capacity, the second wall portion 502 includes a portion of the third plate 53 and a portion of the wall portion of the heat capacity, the third wall portion 503 includes a portion of the first plate 51 and a portion of the second plate 52, and the wall portions of the first plate 51, the second plate 52, the third plate 53, and the heat capacity 101 are all made of a heat conductive material. The heat exchange body portion may also include a side plate 55. In one embodiment the protrusions 511 of the first plate face away from the second plate, the annular protrusions 522 of the second plate being arranged towards the adjacent first plate, i.e. the recesses being in welded contact with the first plate towards the adjacent first plate; the annular convex parts 531 of four corner hole parts of the third plate are arranged towards the adjacent second plate, so that one group of four corner holes is communicated with the space between the first plate and the second plate, the other group of four corner holes is communicated with the space between the third plate and the first plate, the space between the second plate and the third plate is not communicated with the corner holes, the flanging part of the first plate is provided with a notch part 513, the flanging part of the second plate and the concave part are provided with a notch part 523, the notch part 513 of the first plate corresponds to the notch part 523 of the second plate, and the combination of the notch part 513 of the first plate and the notch part 523 of the second plate can be used for inserting the heat capacity part. Therefore, the heat exchange assembly can meet the heat exchange between two fluids, and can also respectively exchange heat with the heat capacity part. In addition, the heat exchange main body part can be placed in a relatively closed energy storage container instead of the heat exchange main body part, so that the heat capacity medium in the heat exchange main body part and the energy storage container can enter the space between the second plate and the third plate, namely, the embodiment combining 3 and fig. 4 is not repeated.

Referring to fig. 26, which is a schematic structural view of another heat exchange body portion that can be used in fig. 3 or fig. 4, the main difference between this embodiment and the seventh embodiment includes that the heat capacity portion is not an insertion type, the structure of the second plate 52' is different, the second plate 52' has an annular convex portion provided at the periphery of a set of angular holes, the second plate 52' may not be provided with a concave portion, but a convex portion similar to the convex portion of the first plate is provided between a set of angular holes where the annular convex portion is not provided, further, the requirement of the notch portion may be different, as long as the burring portion of the second plate is provided with a notch portion so that the notch portion can communicate with the space between the second plate and the third plate, and one or more notch portions may be provided at least partially at positions corresponding to the space between the second plate and the third plate, that is, the position corresponding to the third inter-plate channel 2030. The heat exchange main body part can be provided with four connecting pipes as connecting parts, the connecting pipes can be matched and fixed or limited with the shell, one group of connecting pipes are communicated with the first fluid channel 201, the other group of connecting pipes are communicated with the second fluid channel 202, and the heat exchange assembly can also realize heat exchange between two fluids, and the two fluids can exchange heat with a heat capacity medium by combining fig. 3, 4 and 19-25. The third, fourth and seventh embodiments may be specifically combined, and will not be described in detail here.

The heat exchange assembly described above can be used in a variety of thermal management systems, and a thermal management system is described below as an example, and referring to fig. 27, the thermal management system includes a refrigerant system and a coolant system, and can be used for thermal management of a vehicle. The thermal management system comprises a compressor 10, a second heat exchange assembly 11, a first heat exchange assembly 13, a throttling element 12, a first flow path control device 15 and a second flow path control device 14, wherein at least one of the second heat exchange assembly 11 and the first heat exchange assembly 13 adopts the heat exchange assembly. The heat management system adopts a heat pump mode, wherein the second heat exchange component 11 mainly transmits excessive heat or cold energy to the external heat exchanger through cooling liquid, and the external heat exchanger can exchange heat with the environment; the first heat exchange component 13 is used for transmitting required cold energy or heat to the heat exchanger through cooling liquid, and adjusting the temperature of the environment related to the heat exchanger or the temperature of a control object of the heat exchanger, such as adjusting the temperature of a carriage or the temperature of a battery, a motor and the like; the two heat exchange assemblies have different functions, the second heat exchange assembly 11 is not provided with the heat preservation part, and the first heat exchange assembly 13 can be provided with the heat preservation part. Here, the refrigerant and the cooling liquid are two fluids of the above embodiments, the refrigerant is the second fluid, the cooling liquid is the first fluid, and the cooling liquid is only one of the words, the cooling liquid can perform the functions of cooling and heating.

The second heat exchange assembly 11 and the first heat exchange assembly 13 have a refrigerant flow passage and a coolant flow passage, respectively. When the heat management system works, the refrigerant of the refrigerant system and the cooling liquid of the cooling liquid system can exchange heat in the second heat exchange component 11, the refrigerant of the refrigerant system and the cooling liquid of the cooling liquid system can also exchange heat in the first heat exchange component 13, the refrigerant system comprises a compressor 10, a first flow path control device 15, a throttling element 12 and parts of the two heat exchange components, and the first flow path control device can be a control valve such as a four-way valve, can also be a combination valve, and can be controlled by combining a three-way valve with an electromagnetic valve for controlling the flow direction of the refrigerant in the refrigerant system. The cooling liquid system comprises a power element such as a first pump 24 or a second pump 23, a second flow path control device 14, a heat exchanger 22 and an external heat exchanger 21, wherein the second flow path control device 14 can be a control valve or a combination valve; a heater 25 may also be included so that the thermal management system may regulate the temperature of heat exchanger related objects, which may include heat generating elements such as batteries, motors, or the like, or the cabin, including raising, lowering, or maintaining its temperature, as well as management of humidity, etc., through the heat exchanger 22. In the vehicle thermal management system, when the relevant object of the heat exchanger 22 is a battery, the relevant object may be a water cooling plate, and the water cooling plate contacts with the vehicle power battery to enable the temperature of the vehicle power battery to be in a relatively proper temperature range; in addition, the heat exchanger can also be used for regulating the indoor temperature of the vehicle, and in this case, the heat exchanger is arranged in the air conditioning box; the number of the heat exchangers can be two or more, and the heat exchangers can be arranged in series or in parallel and controlled separately. In the intelligent charging field, the object of the heat exchanger 22 may be a battery to be charged or other electronic devices. In the present embodiment, the second flow path control device 14 is a four-way valve, and in other embodiments, the second flow path control device 14 may be a combination of two or more control valves, or may be a five-way valve, a six-way valve, or even an eight-way valve, a nine-way valve, or the like when there are a plurality of control objects.

The thermal management system has a plurality of modes of operation, and in one embodiment, the thermal management system has a first mode of operation when the first port 141 of the second flow control device 14 communicates with the second port 142, the third port 143 communicates with the fourth port 144, and the coolant system has a first circuit and a second circuit: the first loop, the cooling liquid flow channel of the second heat exchange assembly 11 can be communicated with the external heat exchanger 21 through the second flow channel control device 14, and the cooling liquid flowing through the cooling liquid flow channel of the second heat exchange assembly 11 can release heat or absorb heat in the external heat exchanger 21; in the second loop, the cooling liquid flow passage of the first heat exchange component 13 can be communicated with the heat exchanger 22 through the second flow passage control device 14, so that the cooling liquid flowing through the cooling liquid flow passage of the first heat exchange component 13 can exchange heat in the heat exchanger, and the cooling liquid releases or absorbs heat in the heat exchanger, thereby adjusting the temperature of related objects of the heat exchanger. Specifically, the external heat exchanger 21 is communicated with the second flow path control device 14 and the cooling liquid flow path of the second heat exchange assembly 11 through a first pump 24, and the first pump drives the cooling liquid in the first loop to flow; the heat exchanger 22 communicates with the second flow path control device 14 or with the coolant flow path of the first heat exchange assembly 13 by a second pump 23, and the second pump 23 drives the coolant to flow in the second circuit. The refrigerant system provides corresponding heat or cold for the cooling liquid system, and the heat or cold unfavorable to the system utilizes the first flow path control device to exchange heat between the external heat exchanger and the external environment through the cooling liquid. Accordingly, the refrigerant system can have different modes, and the first heat exchange component 13 can be used as an evaporator for cooling the cooling liquid or used as a condenser for heating the cooling liquid, and can be used for cooling the cooling liquid through a heat container or heating the cooling liquid.

In the second mode of operation, the coolant system has a third circuit, the coolant flow passage of the second heat exchanger assembly 11 can communicate with the coolant flow passage of the first heat exchanger assembly through the second flow path control device 14, and the coolant flow passage to the outer heat exchanger 21 can communicate with the heat exchanger 22 through the second flow path switching device 14, so that the coolant flowing through the heat exchanger 22 can release or absorb heat to the outer heat exchanger 21, and thus the refrigerant system can not operate. The first circuit, the second circuit, and the third circuit refer to the working circuits formed when the system is operated, and are not independent. When the cooling liquid system works, the cooling liquid system can only comprise one of the first loop, the second loop and the third loop, for example, the refrigerant system does not work, the first loop and the second loop can simultaneously or respectively and independently work, or the thermal management system can be provided with other evaporators and condensers. The second flow path control device 14 has a first port 141, a second port 142, a third port 143, and a fourth port 144, the second port 142 is connected to the coolant flow path of the second heat exchange unit 11, the fourth port 144 is connected to the coolant flow path of the first heat exchange unit 13, the first port 141 is connected to the coolant flow path to the external heat exchanger 21, and the third port 143 is connected to the heat exchanger 22. Referring to fig. 27, a first port of the external heat exchanger 21 is connected to the first port 141, and a second port of the external heat exchanger 21 can be communicated with the second port 142 through a coolant flow passage of the second heat exchange assembly 11, or the first port 141 and the second port 142 can be communicated with the external heat exchanger 21 through the second heat exchange assembly 11; the first port of the heat exchanger 22 can be in communication with the third port 143, the coolant flow passage of the first heat exchange assembly 13 can be in communication with the fourth port 144, and the second port of the heat exchanger 22 can be in communication with the fourth port 144 through the coolant flow passage of the first heat exchange assembly 13. Specifically, in the first operation mode, the internal channel of the second flow path control device 14 communicates the first interface 141 with the second interface 142, and the third interface 143 with the fourth interface 144, so that the cooling fluid flow path of the second heat exchange assembly 11 and the external heat exchanger 21 form a first loop through the second flow path control device 14, and naturally the first loop also includes a first pump or other components, and the cooling fluid flow path of the first heat exchange assembly 13 and the heat exchanger 22 form a second loop through the second flow path control device 14, and naturally the second loop also includes a second pump or other components. In the second operation mode, the second port 142 of the second flow path control device 14 communicates with the fourth port 144, and the third port 143 communicates with the first port 141, so that the coolant flow path of the second heat exchange assembly 11, the coolant flow path of the external heat exchanger 21, the coolant flow path of the first heat exchange assembly 13, and the heat exchanger 22 form a third circuit through the second flow path control device 14, and naturally the third circuit also includes the first pump, the second pump, or other components.

The heat exchange with air or air flow is performed for the outer heat exchanger 21, and the cooling liquid in the outer heat exchanger 21 can absorb or release heat from the air flow, for example, a micro-channel heat exchanger is performed for the outer heat exchanger 21. The first pump 24 may be provided in a flow path to both ends of the outer heat exchanger 21 such that the first pump 24 can drive the flow of the cooling liquid to the outer heat exchanger 21 when the cooling liquid system is in operation, the second pump 23 is provided in a flow path before or after the heat exchanger 22, and the second pump 23 can drive the flow of the cooling liquid to the heat exchanger 22.

The first flow path control device 15 has a first connection port 151, a second connection port 152, a third connection port 153, and a fourth connection port 154. The throttling element 12 may be an electronic expansion valve or other device having a throttling function, such as a capillary tube, a thermal expansion valve, or a ball valve having a throttling function, etc. Specifically, the outlet of the compressor 10 is connected to the first connection port 151, the second connection port 152 is connected to one port of the refrigerant flow channel of the second heat exchange assembly 11, the other port of the refrigerant flow channel of the second heat exchange assembly 11 is connected to one port of the refrigerant flow channel of the first heat exchange assembly 13 through the throttling element 12, the other port of the refrigerant flow channel of the first heat exchange assembly 13 is connected to the third connection port 153, the fourth connection port 154 is communicated with the inlet of the compressor 10 or connected to the inlet of the compressor 10 through the gas-liquid separator, and of course, the refrigerant system may further include other functional components such as a liquid reservoir or a filter. When the refrigerant system is in operation, the first flow path control device 15 may have various operating states, such as a state: the first connection port 151 is communicated with the second connection port 152, the third connection port 153 is communicated with the fourth connection port 154, at this time, the outlet of the compressor 10 can be communicated with the refrigerant flow passage of the first heat exchange assembly 13 through the refrigerant flow passage of the second heat exchange assembly 11 and the throttling element 12, the refrigerant flow passage of the first heat exchange assembly 13 is communicated with the inlet of the compressor 10, it can be known that the second heat exchange assembly 11 is a condenser, the cooling liquid of the cooling liquid flow passage in the second heat exchange assembly 11 is heated, the first heat exchange assembly 13 is an evaporator, and the cooling liquid in the first heat exchange assembly 13 is cooled. The thermal management system can cool the battery or provide cooling to the cabin or dehumidify the cabin, etc.

The first flow path control device 15 may also be that the first connection port 151 is communicated with the third connection port 153, the second connection port 152 is communicated with the fourth connection port 154, at this time, the outlet of the compressor 10 can be communicated with the refrigerant flow path of the second heat exchange assembly 11 through the refrigerant flow path of the first heat exchange assembly 13 and the throttling element 12, the refrigerant flow path of the second heat exchange assembly 11 is communicated with the inlet of the compressor 10, it can be known that the first heat exchange assembly 13 is a condenser, the cooling liquid of the cooling liquid flow path in the first heat exchange assembly 13 can be heated, the second heat exchange assembly 11 is an evaporator, and the cooling liquid in the second heat exchange assembly 11 can be cooled. The thermal management system can then provide heat to the battery or to the cabin.

The thermal management system may have the following modes of operation:

in the cooling mode, the first connection port 151 of the first flow path control device 15 communicates with the second connection port 152, and the third connection port 153 communicates with the fourth connection port 154; the first port 141 of the second flow path control device 14 communicates with the second port 142, and the third port 143 communicates with the fourth port 144; the cooling liquid flow passage of the second heat exchange assembly 11 is communicated with the external heat exchanger 21 through the second flow passage control device 14, and the cooling liquid flow passage of the first heat exchange assembly 13 is communicated with the heat exchanger 22 through the second flow passage control device 14; at this time, the refrigerant part of the second heat exchange assembly is used as a condenser, and the refrigerant part of the first heat exchange assembly is used as an evaporator. In the refrigerant system, high-temperature and high-pressure refrigerant flows from the compressor to the second heat exchange assembly 11 through the first flow path control device 15, heat is released to the outer heat exchanger 21 through cooling liquid, the refrigerant of the refrigerant system is throttled through the throttling element 12 after being radiated by the second heat exchange assembly 21, the low-temperature refrigerant is evaporated to the first heat exchange assembly 13, the cooling liquid is cooled in the first heat exchange assembly 13, the cooling capacity is cooled to the heat exchanger 22 through the cooling liquid, the temperature of a vehicle battery or other related objects such as a carriage is reduced, the temperature of the vehicle battery or the temperature of other related objects is further reduced, at the moment, the heat management system is in a first working mode, the first heat exchange assembly comprises a heat capacity part, the refrigerant simultaneously cools the heat capacity medium in the heat capacity part, and thus the temperature change of the cooling liquid is relatively mild, the comfort level can be improved, and the same.

In the cooling mode, when the temperature of the heat capacity medium in the heat capacity part is lower than the set temperature or the related object of the heat exchanger or the heat exchanger reaches the set temperature or the system is close to stop running, the compressor can stop running, the second pump still works, at the moment, in the first heat exchange component, the cooling liquid can exchange heat with the heat capacity medium in the heat capacity part, and the related object of the heat exchanger is controlled at a proper temperature in a certain range by the cooling liquid, so that the energy saving purpose is achieved, and the cooling device is particularly suitable for heat management of the battery in spring, autumn or winter or when the cooling capacity requirement is not particularly high, or heat management of the battery in winter or the battery is not too cold, heat management of the rechargeable battery in winter, and the like. In addition, when the system stops running, the compressor is generally required to continue to work for cooling for a period of time, but when a heat exchange assembly with a heat capacity part is adopted, the heat capacity part can be used for continuing cooling, so that the running time of the compressor can be reduced.

Heating mode: the first connection port 151 of the first flow path control device 15 communicates with the third connection port 153, and the second connection port 152 communicates with the fourth connection port 154; the first port 141 of the second flow path control device 14 is communicated with the second port 142, the third port 143 of the second flow path control device 14 is communicated with the fourth port 144, and unlike the refrigeration mode, the refrigerant part of the second heat exchange assembly is used as an evaporator, and the refrigerant part of the first heat exchange assembly is used as a condenser, so that the cold energy of the refrigerant system refrigerant is released to the external heat exchanger 21 through the cooling liquid, and the heat energy of the refrigerant system refrigerant can be transferred to the heat exchanger 22 through the cooling liquid to raise the temperature of the vehicle battery or other heat management objects, thereby realizing the management of the temperature of the vehicle battery or other heat management objects. At this time, the refrigerant in the first heat exchange assembly heats up the heat capacity medium in the heat capacity part at the same time, and when the compressor stops running or heating, the cooling liquid can absorb the heat of the heat capacity medium in the heat capacity part, so as to realize the purpose of heat management.

After the heating mode is operated for a period of time, when the temperature of the heat capacity medium in the heat capacity part is higher than the set temperature or the related object of the heat exchanger or the heat exchanger reaches the set temperature or is close to the stop operation, the compressor can be stopped, and the second pump works, at the moment, the first heat exchange component 13 can exchange heat between the cooling liquid and the heat capacity medium in the heat capacity part, so that the related object of the heat exchanger can relatively keep the proper temperature in a certain range, and the aim of heat management is fulfilled while energy is saved. This mode is suitable for applications requiring heating but the heat demand is not particularly great, such as when the thermal management object is a battery, the heat demand will be significantly reduced later than at the beginning, since the battery itself will heat up. In addition, defrosting may be required after the heating mode is operated for a period of time, and the heat capacity medium of the heat capacity part can be used for providing a certain amount of heat for the cooling liquid, so that the thermal management system has relatively good comfort and stability.

The thermal management system may also have other modes of operation. In addition, the second heat exchange component can also be provided with a heat capacity part, but the second heat exchange component is not provided with a heat preservation part, and the heat capacity part can also exchange heat with the outside at the same time so as to improve the heat exchange efficiency. The heat exchange component of the heat management system is provided with a heat capacity part, the heat capacity part can store heat or cold, so that the heat management system can save energy relatively, the temperature change is relatively mild in temperature control, the comfort can be improved sometimes, and the heat exchange component can be replaced by one or combination of the above, for example, the second heat exchange component is integrated in the external heat exchanger. The heat exchange assembly may have a heat retention portion to reduce heat or cold losses. In addition, the object of the thermal management system may be one kind of thermal management, such as thermal management of the temperature of the cabin, or thermal management when the battery is charged, or two kinds of thermal management, such as thermal management of the cabin and the battery, or even multiple kinds of thermal management, such as thermal management of the cabin, the battery, the motor, and the like.

It should be noted that: the above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the present invention may be modified or substituted by the same, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention are intended to be included in the scope of the claims of the present invention.

Claims

1. A heat exchange assembly comprising a housing, at least one heat exchange body portion; the heat exchange main body part is provided with a first fluid channel and a second fluid channel, and the first fluid channel is not communicated with the second fluid channel in the heat exchange main body part; the heat exchange main body part is at least mostly positioned in the shell, the heat exchange component is provided with a heat capacity medium in the shell, and the heat exchange main body part is in thermal contact with the heat capacity medium; the space where the heat capacity medium is located is not communicated with the first fluid channel, and the space where the heat capacity medium is located is not communicated with the second fluid channel; the material of the heat exchange main body part comprises a heat conduction material, and heat exchange can be carried out between the first fluid channel and the second fluid channel.

2. The heat exchange assembly of claim 1 wherein the heat exchange body portion includes a first wall portion, a second wall portion; within the first wall portion is the first fluid passage or a portion of the first fluid passage, the first wall portion being in contact with the heat capacity medium; the second wall portion is the second fluid channel or a part of the second fluid channel, the second wall portion being in contact with the heat capacity medium; the heat exchange main body part comprises a third wall part, one side of the third wall part is the first fluid channel, and the other side of the third wall part is the second fluid channel; the material of the first wall portion comprises a thermally conductive material, the material of the second wall portion comprises a thermally conductive material, and the material of the third wall portion comprises a thermally conductive material.

3. The heat exchange assembly of claim 2 wherein the heat capacity medium is relatively sealingly disposed within the housing; the specific heat capacity of the heat capacity medium is larger than or equal to the specific heat capacity of water, the heat conductivity of the first wall part, the second wall part and the third wall part is larger than or equal to the heat conductivity of stainless steel, the heat conductivity of the third wall part is larger than or equal to the heat conductivity of the first wall part, and the heat conductivity of the third wall part is larger than or equal to the heat conductivity of the second wall part.

4. A heat exchange assembly according to any one of claims 1 to 3, wherein the heat exchange assembly includes a heat retaining portion located outside the housing such that a substantial portion of the housing is covered by the heat retaining portion; the heat exchange assembly comprises four connecting parts for matching connection: the first connecting part and the second connecting part are provided with communication interfaces for the first fluid channel, and the third connecting part and the fourth connecting part are provided with communication interfaces for the second fluid channel; the heat exchange main body part is located in the shell except the connecting parts, and the four connecting parts are in relative sealing fit with the shell.

5. A thermal management system comprising a refrigerant system and a coolant system, the thermal management system comprising a compressor, a throttling element, a heat exchanger, at least one flow path control device, an external heat exchanger, and a first heat exchange assembly, the first heat exchange assembly being as claimed in any preceding claim; the refrigerant system comprises the compressor, the throttling element and a second fluid flow passage part of the first heat exchange assembly; the coolant system includes at least one pump, the heat exchanger, a first fluid flow path portion of the first heat exchange assembly; the heat capacity medium can exchange heat with the cooling liquid of the first fluid channel, and the heat capacity medium can exchange heat with the cooling medium of the second fluid channel; the refrigerant of the second fluid channel can exchange heat with the cooling liquid of the first fluid channel.

6. The thermal management system of claim 5, wherein the specific heat capacity of the heat capacity medium is equal to or greater than the specific heat capacity of the coolant;

the heat capacity medium is in a liquid state; or the heat capacity medium can generate phase change when in use, and the state of the heat capacity medium comprises liquid state.

7. The thermal management system of claim 5 or 6, wherein the thermal management system comprises a cooling mode and a cooling mode:

in the refrigeration mode, the compressor operates, the heat exchange assembly serves as an evaporator, the cooling liquid and the refrigerant can exchange heat in the heat exchange assembly, and the heat capacity medium and the refrigerant can exchange heat in the heat exchange assembly; in the cooling mode, the compressor is not operated, and the cooling liquid and the heat capacity medium can exchange heat in the heat exchange assembly.

8. The thermal management system of claim 5 or 6, wherein the thermal management system comprises a heating mode and a heating mode:

in the heating mode, the compressor operates, the heat exchange assembly serves as a condenser, the cooling liquid and the refrigerant can exchange heat in the heat exchange assembly, and the heat capacity medium and the refrigerant can exchange heat in the heat exchange assembly; in the heating mode, the compressor is not operated, and the cooling liquid and the heat capacity medium can exchange heat in the heat exchange assembly.

9. The thermal management system of any of claims 5-8, wherein the thermal management system comprises a first flow control device, a second flow control device, the heat exchange assembly comprising a first heat exchange assembly, a second heat exchange assembly, a first flow portion of the first heat exchange assembly being connected to the heat exchanger, a first flow portion of the second heat exchange assembly being connected to the pair of external heat exchangers;

the coolant system has a first circuit, a second circuit:

the first loop comprises a cooling liquid flow passage of the second heat exchange assembly, a part of the second flow passage control device and the pair of external heat exchangers, and the cooling liquid flow passage of the second heat exchange assembly is communicated with the pair of external heat exchangers;

the second loop comprises a cooling liquid flow passage of the first heat exchange assembly, a part of the first flow passage control device and the heat exchanger, and the cooling liquid flow passage of the first heat exchange assembly is communicated with the heat exchanger.

10. The thermal management system of claim 9, wherein the first flow control device comprises a first connection port, a second connection port, a third connection port, and a fourth connection port, the refrigerant system having the following communication modes:

First communication mode: the first connecting port is communicated with the third connecting port, the second connecting port is communicated with the fourth connecting port, the outlet of the compressor is communicated with the refrigerant flow passage of the first heat exchange assembly, the refrigerant flow passage of the first heat exchange assembly is communicated with the throttling element, and the throttling element is communicated with the refrigerant flow passage of the second heat exchange assembly; the refrigerant flow passage of the first heat exchange assembly is used as an evaporator, and the refrigerant flow passage of the second heat exchange assembly is used as a condenser;

second communication mode: the first connecting port is communicated with the second connecting port, the third connecting port is communicated with the fourth connecting port, the outlet of the compressor is communicated with the refrigerant flow passage of the second heat exchange assembly, the refrigerant flow passage of the second heat exchange assembly is communicated with the throttling element, and the throttling element is communicated with the refrigerant flow passage of the first heat exchange assembly; the refrigerant flow passage of the first heat exchange assembly is used as a condenser, and the refrigerant flow passage of the second heat exchange assembly is used as an evaporator.