CN112460853A

CN112460853A - Condensation evaporation heat exchanger, air conditioning system and vehicle

Info

Publication number: CN112460853A
Application number: CN202011242392.4A
Authority: CN
Inventors: 李国庆
Original assignee: Beiqi Foton Motor Co Ltd
Current assignee: Beiqi Foton Motor Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-03-09

Abstract

The utility model relates to a condensation evaporation heat exchanger, air conditioning system and vehicle, condensation evaporation heat exchanger includes expansion switch valve and follows two heat transfer cores that condensation evaporation heat exchanger's thickness direction is adjacent sets up, two the heat transfer core all has first core mouth and second core mouth, every refrigerant in the heat transfer core can flow between its first core mouth and the second core mouth that corresponds, two the first core mouth of a heat transfer core in the heat transfer core is used for being connected with air conditioning system's compressor, the first core mouth of another heat transfer core be used for with air conditioning system's outdoor heat exchanger is connected, the second core mouth of a heat transfer core in two heat transfer cores passes through expansion switch valve is connected with the second core mouth of another heat transfer core. Through the technical scheme, the functions of refrigeration, heating, defrosting and demisting can be realized, and the complexity of a loop of the air conditioning system can be reduced.

Description

Condensation evaporation heat exchanger, air conditioning system and vehicle

Technical Field

The utility model relates to a heat transfer device technical field, specifically relates to a condensation evaporation heat exchanger, air conditioning system and vehicle.

Background

Vehicle air conditioning systems typically include an evaporator for cooling and a condenser for heating, and in either the cooling or heating mode, air is blown into the evaporator or into the condenser, typically through a damper mechanism, to cool or heat the passenger compartment of the vehicle. When defrosting and demisting in the vehicle, the condensation evaporation heat exchanger is required to be capable of simultaneously carrying out condensation heat exchange and evaporation heat exchange, moisture in the air in the vehicle is condensed into water drops through the condensation heat exchange process to complete dehumidification, and the evaporation heat exchange is carried out to maintain the temperature in the vehicle.

In the prior art, the evaporator and the condenser are of two mutually independent structures and need to be matched with the air door mechanism, so that a system loop is complex, the number of valves is large, and particularly, when defrosting and demisting are carried out in a vehicle, the evaporator and the condenser are required to work simultaneously, and the control logic is complex. Moreover, under the conditions that the evaporator and the condenser are of two mutually independent structures, a system loop is complex, and the number of valves is large, the volume of the box body is increased, and the weight is increased.

Disclosure of Invention

The purpose of this disclosure is to provide a condensation evaporation heat exchanger, air conditioning system and vehicle, this condensation evaporation heat exchanger not only can realize refrigeration, heating and defrosting defogging function, and can reduce the complexity of air conditioning system return circuit.

In order to achieve the above object, the present disclosure provides a condensation-evaporation heat exchanger, including an expansion switch valve and two heat exchange cores adjacently arranged along a thickness direction of the condensation-evaporation heat exchanger, where each of the two heat exchange cores has a first core port and a second core port, a refrigerant in each of the heat exchange cores can flow between the corresponding first core port and second core port, the first core port of one of the two heat exchange cores is used for connecting with a compressor of an air conditioning system, the first core port of the other heat exchange core is used for connecting with an outdoor heat exchanger of the air conditioning system, and the second core port of one of the two heat exchange cores is connected with the second core port of the other heat exchange core through the expansion switch valve;

the expansion switch valve has a throttling state and a through-flow state, the expansion switch valve throttles the refrigerant flowing out of the second core port of one of the two heat exchange cores in the throttling state, the expansion switch valve directly conducts the refrigerant flowing out of the second core port of one of the two heat exchange cores in the through-flow state, and the expansion switch valve is used for heat release and condensation of the refrigerant in the heat exchange core connected with the compressor and heat absorption and evaporation of the refrigerant in the heat exchange core connected with the outdoor heat exchanger in the throttling state.

Optionally, each heat exchange core body includes a first collecting pipe, a second collecting pipe and a plurality of flat pipes, the first collecting pipe and the second collecting pipe are arranged along the vertical direction of the condensation-evaporation heat exchanger, the first collecting pipe and the second collecting pipe are arranged oppositely, two ends of the first collecting pipe are opened to form the first core port and the second core port respectively, two ends of the second collecting pipe are closed, each partition plate is arranged in the first collecting pipe, and the partition plates divide the first collecting pipe into a plurality of chambers. .

Optionally, the first core ports of the two heat exchange cores are adjacent to each other in the thickness direction, and the second core ports of the two heat exchange cores are adjacent to each other in the thickness direction.

Optionally, the first core ports of the two heat exchange cores are adjacent in the thickness direction, the condensing-evaporating heat exchanger further includes a first connection structure installed on the heat exchange cores, a first flow channel and a second flow channel are provided in the first connection structure, the first core port of one of the two heat exchange cores is connected to the first flow channel, the first core port of the other heat exchange core is connected to the second flow channel, one of the first flow channel and the second flow channel is used for being connected to the compressor, the other one of the first flow channel and the second flow channel is used for being connected to the outdoor heat exchanger, and the extending direction of at least one of the first flow channel and the second flow channel intersects with the axis of the first core port connected to the first flow channel.

Optionally, the extending direction of the first flow channel intersects with an axis of a first core port connected with the first flow channel, the extending direction of the second flow channel is coaxial with an axis of a first core port connected with the second flow channel, the first connecting structure includes a first connecting plate and a second connecting plate which are oppositely arranged, the second connecting plate is located between the first connecting plate and the heat exchange core, the first connecting plate is formed with first through holes and second through holes which are arranged at intervals along the vertical direction, the second connecting plate is formed with third through holes and fourth through holes which are adjacent to each other along the thickness direction,

the first through hole is located below the second through hole, a first groove is further formed in the first connecting plate, the first through hole is located in the first groove, the first groove extends upwards from the first through hole in an inclined mode, the second connecting plate covers the first connecting plate, the second connecting plate covers an opening of the first groove and defines the first flow channel together with the first groove, the third through hole is communicated with the first flow channel, and the second through hole is coaxial with the fourth through hole and defines the second flow channel together.

Optionally, the first connecting structure further includes a joint installed on the first connecting plate, a first cavity and a second cavity are formed in the joint and are arranged at an interval in the vertical direction, the first cavity is located below the second cavity, the first cavity and the second cavity are both formed such that one end is open and the other end is closed, the open end of the first cavity is communicated with the first through hole, the open end of the second cavity is communicated with the second through hole, a first interface and a second interface are respectively formed on the first cavity and the second cavity, one of the first interface and the second interface is used for being connected with the compressor through a first pipeline, and the other one of the first interface and the second interface is used for being connected with the outdoor heat exchanger through a second pipeline.

Optionally, the second core ports of the two heat exchange cores are adjacent to each other in the thickness direction, the condensing-evaporating heat exchanger further includes a second connection structure, the expansion switch valve is mounted on the heat exchange cores through the second connection structure, a third flow channel and a fourth flow channel are provided in the second connection structure, the second core port of one of the two heat exchange cores is communicated with the first valve port of the expansion switch valve through the third flow channel, the second valve port of the other heat exchange core is communicated with the second valve port of the expansion switch valve through the fourth flow channel, and the extending direction of at least one of the third flow channel and the fourth flow channel intersects with the axis of the second core port connected thereto.

Optionally, the extending direction of the third flow channel intersects with the axis of the second core port connected with the third flow channel, the extending direction of the fourth flow channel is coaxial with the axis of the second core port connected with the fourth flow channel, the second connecting structure comprises a third connecting plate and a fourth connecting plate which are oppositely arranged, the third connecting plate is located between the fourth connecting plate and the expansion switch valve, the first valve port and the second valve port are arranged at intervals in the vertical direction, fifth through holes and sixth through holes which are arranged at intervals in the vertical direction are formed in the third connecting plate, and seventh through holes and eighth through holes which are adjacent in the thickness direction are formed in the fourth connecting plate,

the fifth through hole is located below the sixth through hole, the fifth through hole is communicated with the first valve port, the sixth through hole is communicated with the second valve port, a second groove is further formed in the third connecting plate, the fifth through hole is located in the second groove, the second groove extends obliquely upwards from the fifth through hole, the fourth connecting plate covers the third connecting plate, the fourth connecting plate covers an opening of the second groove and defines the third flow channel together with the second groove, the seventh through hole is communicated with the third flow channel, and the eighth through hole and the sixth through hole are coaxial and define the fourth flow channel together.

Through the technical scheme, the condensation evaporation heat exchanger that this disclosure provided has two heat exchange cores, the refrigerant can carry out twice evaporation in these two heat exchange cores, twice condensation or evaporate in one heat exchange core in these two heat exchange cores, the condensation in another heat exchange core, thereby these two heat exchange cores can realize refrigeration, heating and defrosting defogging function when condensation evaporation heat exchanger is applied to air conditioning system, and with prior art when refrigeration or heating, the refrigerant can only exchange heat in a heat exchange core of evaporimeter or can only exchange heat in a heat exchange core of condenser, because in the condensation evaporation heat exchanger that this disclosure provided, when refrigerating or heating, the refrigerant all can exchange heat in two heat exchange cores, heat exchange efficiency is higher. And, because this disclosure provides a condensation evaporation heat exchanger has two heat transfer cores that can evaporate refrigerant or condensation refrigerant, compressor and outdoor heat exchanger just can realize refrigeration, heating and defrosting defogging function with the connection of condensation evaporation heat exchanger, compare with the technical scheme that compressor and outdoor heat exchanger need connect evaporimeter and condenser respectively among the prior art, the condensation evaporation heat exchanger of this application can make air conditioning system's return circuit simpler when using to air conditioning system, be of value to reduce valve quantity, reduce control logic's complexity.

In addition, with evaporimeter and condenser mutual independence installation among the prior art, compare the great technical scheme of occupation space in the air-conditioning box, two heat exchange cores of this disclosure set up along condensation evaporation heat exchanger's thickness direction is adjacent, compact structure, when installing condensation evaporation heat exchanger in the air-conditioning box, can reduce the occupation space of condensation evaporation heat exchanger in the air-conditioning box to be favorable to reducing the overall dimension and the whole weight of air-conditioning box.

According to another aspect of the present disclosure, an air conditioning system is provided, including a compressor, an outdoor heat exchanger, an expansion valve, a four-way valve, and the above-mentioned condensation-evaporation heat exchanger, the condensation-evaporation heat exchanger is disposed indoors, an outlet of the compressor is communicated with an a port of the four-way valve, a B port of the four-way valve is communicated with a first port of the outdoor heat exchanger, a second port of the outdoor heat exchanger is communicated with a first core port of one of the two heat exchange cores through the expansion valve, a first core port of the other of the two heat exchange cores is communicated with a C port of the four-way valve, and a D port of the four-way valve is communicated with an inlet of the compressor.

Through the technical scheme, the flow direction of the refrigerant can be controlled by adjusting the four-way valve, the control of the flow direction of the refrigerant under the refrigeration working condition, the heating working condition and the defrosting and demisting working condition of the air-conditioning system is realized, the control logic is simple and reliable, the loop of the air-conditioning system can be simplified, and the number of valves and pipelines is reduced. The working state of the expansion switch valve is controlled to realize the selection of the refrigerating working condition, the heating working condition and the defrosting and demisting working condition of the air conditioning system, when the expansion switch valve is in a through-flow state, the refrigerant is evaporated or condensed in two heat exchange cores of the condensation and evaporation heat exchanger, the refrigeration or the heating is realized, the expansion switch valve is in a throttling state, the refrigerant is evaporated in one heat exchange core of the two heat exchange cores of the condensation and evaporation heat exchanger, the refrigerant is condensed in the other heat exchange core, and the indoor defrosting and demisting are realized.

According to yet another aspect of the present disclosure, there is provided a vehicle including the above-described condensation-evaporation heat exchanger, or the above-described air conditioning system.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic perspective view of a condensing-evaporating heat exchanger provided in an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded view of a condensing-evaporating heat exchanger provided by an exemplary embodiment of the present disclosure;

fig. 3 is a schematic structural view of a first connecting plate or a third connecting plate of a condensation-evaporation heat exchanger provided by an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic structural view of a second connection plate or a fourth connection plate of a condensing-evaporating heat exchanger provided in an exemplary embodiment of the present disclosure;

FIG. 5 is an exploded view of a joint of a condensing-evaporating heat exchanger provided by an exemplary embodiment of the present disclosure;

FIG. 6 is a schematic perspective view of a joint body of a condensing-evaporating heat exchanger provided in an exemplary embodiment of the present disclosure;

FIG. 7 is a schematic perspective view of an expansion switch valve and valve connection for a condensing-evaporating heat exchanger provided in an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic diagram illustrating the operation of an air conditioning system in a cooling mode according to an exemplary embodiment of the present disclosure;

fig. 9 is a schematic diagram illustrating an operation principle of an air conditioning system in a heating mode or a defrosting and demisting mode according to an exemplary embodiment of the present disclosure.

Description of the reference numerals

1-a condensation evaporation heat exchanger; 11-an expansion switch valve; 111-a valve connection; 112-first valve port; 113-a second valve port; 1111-a third annular flange; 1112-a fourth annular flange; 12-a heat exchange core; 121-a first core port; 122-a second core orifice; 13-a first header; 14-a second header; 15-flat tube; 16-a separator; 17-a first connecting structure; 171-a first connecting plate; 1711-a first via; 1712-a second via; 1713-a first groove; 172-a second connecting plate; 1721-a third via; 1722-a fourth via; 18-a linker; 181-first cavity; 182-a second cavity; 183-first interface; 184-a second interface; 185-a first conduit; 186-a second conduit; 187-a joint body; 188-a joint connection; 1881-a first annular flange; 1882-two second annular flanges; 19-a second connecting structure; 191-a third connecting plate; 1911-fifth via; 1912-sixth via; 1913-second groove; 192-a fourth connecting plate; 1921-a seventh via; 1922-an eighth via; 1001-sideboard; 1002-end plate; 2-a compressor; 3-an outdoor heat exchanger; 4-an expansion valve; 5-four-way valve.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms of orientation such as "length direction" and "thickness direction" are used to refer to the length direction and the thickness direction of the condensing-evaporating heat exchanger in the normal use state, specifically as shown in fig. 1, "up and down" refers to the up and down of the condensing-evaporating heat exchanger in the normal use state, specifically as shown in fig. 1, "inside and outside" refers to the inside and outside of the profile of the relevant component. Furthermore, terms such as "first," "second," and the like, are used herein to distinguish one element from another, and are not necessarily sequential or significant.

As shown in fig. 1 to 9, a first aspect of the present disclosure provides a condensation-evaporation heat exchanger 1, including an expansion switch valve 11 and two heat exchange cores 12 adjacently disposed in a thickness direction of the condensation-evaporation heat exchanger 1, each of the two heat exchange cores 12 having a first core port 121 and a second core port 122, refrigerant in each heat exchange core 12 being capable of flowing between the corresponding first core port 121 and second core port 122, the first core port 121 of one heat exchange core 12 of the two heat exchange cores 12 being configured to be connected to a compressor 2 of an air conditioning system, the first core port 121 of the other heat exchange core 12 being configured to be connected to an outdoor heat exchanger 3 of the air conditioning system, and the second core port 122 of one heat exchange core 12 of the two heat exchange cores 12 being connected to the second core port 122 of the other heat exchange core 12 through the expansion switch valve 11; the expansion switch valve 11 has a throttling state in which the expansion switch valve 11 throttles the refrigerant flowing out of the second core port 122 of one heat exchange core 12 of the two heat exchange cores 12, and a through-flow state in which the expansion switch valve 11 directly conducts the refrigerant flowing out of the second core port 122 of one heat exchange core 12 of the two heat exchange cores 12, and in the throttling state, the expansion switch valve is used for heat release and condensation of the refrigerant in the heat exchange core 12 connected to the compressor 2 and for heat absorption and evaporation of the refrigerant in the heat exchange core 12 connected to the outdoor heat exchanger 3.

Under the refrigeration working condition, the high-temperature and high-pressure refrigerant discharged by the compressor 2 enters the outdoor heat exchanger 3, the refrigerant radiates heat into air in the outdoor heat exchanger 3, the refrigerant of lower temperature discharged from the outdoor heat exchanger 3 enters one heat exchange core 12 connected to the outdoor heat exchanger 3, and absorbs heat in the heat exchange core 12 to be evaporated, the refrigerant evaporated in the heat exchange core 12 flows into the expansion switching valve 11 via the second core port 122 of the heat exchange core 12, and at this time, the expansion switch valve 11 can be in a through-flow state (i.e. the expansion switch valve 11 directly conducts the refrigerant without throttling the refrigerant), the refrigerant flowing out of the expansion switch valve 11 enters another heat exchange core 12 connected with the compressor 2, and absorbs heat again in the heat exchange core 12 to evaporate, and the refrigerant after twice evaporation finally flows back to the compressor 2. In other words, under the refrigeration condition, the refrigerant absorbs heat and evaporates in the two heat exchange cores 12, so as to realize the refrigeration function.

In a heating condition, a high-temperature and high-pressure refrigerant discharged from the compressor 2 enters one heat exchange core 12 connected to the compressor 2, the high-temperature and high-pressure refrigerant is subjected to heat release condensation in the heat exchange core 12, the refrigerant condensed in the heat exchange core 12 flows into the expansion switch valve 11 through the second core opening 122 of the heat exchange core 12, at this time, the expansion switch valve 11 can be in a through-flow state (i.e., the expansion switch valve 11 directly conducts the refrigerant without throttling the refrigerant), the refrigerant flowing out of the expansion switch valve enters the other heat exchange core 12 connected to the outdoor heat exchanger 3, is subjected to heat release condensation again in the heat exchange core 12, and the low-temperature refrigerant subjected to twice condensation flows into the outdoor heat exchanger 3, absorbs heat in air in the outdoor heat exchanger 3, and finally flows back to the compressor 2. In other words, under the heating condition, the refrigerant releases heat and condenses in both heat exchange cores 12, and the heating function is realized.

Under the working conditions of defrosting and demisting, the high-temperature and high-pressure refrigerant discharged by the compressor 2 enters one heat exchange core 12 connected with the compressor 2, heat is released and condensed in the heat exchange core 12, the heat exchange core 12 is in a heating state to maintain the ambient temperature, the refrigerant condensed in the heat exchange core 12 flows into the expansion switch valve 11 through the second core opening 122 of the heat exchange core 12, at this time, the expansion switch valve 11 can be in a throttling state (namely, the expansion switch valve 11 throttles the refrigerant), the temperature and the pressure of the refrigerant are reduced after the refrigerant is throttled by the expansion switch valve 11, the refrigerant flowing out of the expansion switch valve 11 enters the other heat exchange core 12 connected with the outdoor heat exchanger 3 and absorbs heat and evaporates in the heat exchange core 12, the heat exchange core 12 is in a refrigerating state, indoor moisture is condensed into water drops under the action of the heat exchange core 12, and the dehumidification process is completed, the evaporated refrigerant flowing out of the first core port 121 of the heat exchange core 12 is finally returned to the compressor 2 via the outdoor heat exchanger 3. In other words, under the defrosting and demisting working condition, the refrigerant releases heat and condenses in one heat exchange core 12 of the two heat exchange cores 12, and absorbs heat and evaporates in the other heat exchange core 12, so that the defrosting and demisting functions are realized.

That is to say, the condensation-evaporation heat exchanger 1 provided by the present disclosure may include a defrosting and demisting condition, under the defrosting and demisting condition, the expansion switch valve 11 is in a throttling state, the refrigerant in the heat exchange core 12 connected to the compressor 2 releases heat and condenses, the refrigerant flowing out of the heat exchange core 12 connected to the compressor 1 flows into the heat exchange core 12 connected to the outdoor heat exchanger 3 after being throttled by the expansion switch valve 11, and the refrigerant in the heat exchange core 12 connected to the outdoor heat exchanger 3 absorbs heat and evaporates.

The condensation-evaporation heat exchanger 1 provided by the present disclosure may further include a refrigeration working condition, under the refrigeration working condition, the expansion switch valve 11 is in a through-flow state, the refrigerant flowing out of the outdoor heat exchanger 3 flows into the two heat exchange cores 12, and the refrigerants in the two heat exchange cores 12 are all subjected to heat absorption evaporation.

The condensing-evaporating heat exchanger 1 provided by the present disclosure may further include a heating working condition, in the heating working condition, the expansion switch valve 11 is in a through-flow state, the refrigerant flowing out of the compressor 2 flows into the two heat exchange cores 12, and the refrigerants in the two heat exchange cores 12 are both subjected to heat release condensation.

Through the technical scheme, the condensation-evaporation heat exchanger 1 provided by the disclosure is provided with two heat exchange cores 12, a refrigerant can be evaporated twice in the two heat exchange cores 12, condensed twice or evaporated in one heat exchange core 12 of the two heat exchange cores 12, and condensed in the other heat exchange core 12, so that the two heat exchange cores 12 can realize the functions of refrigeration, heating, defrosting and demisting when the condensation-evaporation heat exchanger 1 is applied to an air conditioning system, and compared with the technical scheme that in the prior art, when refrigeration or heating is performed, the refrigerant can only exchange heat in one heat exchange core of an evaporator or can only exchange heat in one heat exchange core of a condenser, because in the condensation-evaporation heat exchanger 1 provided by the disclosure, when refrigeration or heating is performed, the refrigerant can exchange heat in the two heat exchange cores 12, and the heat exchange efficiency is higher. And, because this disclosure provides a condensation evaporation heat exchanger 1 has two heat exchange core 12 that can evaporate refrigerant or condensation refrigerant, compressor 2 and outdoor heat exchanger 3 just can realize refrigeration, heating and defrosting defogging function with condensation evaporation heat exchanger 1 is connected, compare with the technical scheme that compressor and outdoor heat exchanger need connect evaporimeter and condenser respectively among the prior art, the condensation evaporation heat exchanger 1 of this application can make air conditioning system's return circuit simpler when using to air conditioning system, be favorable to reducing valve quantity, reduce control logic's complexity.

In addition, with the mutual independent installation of evaporimeter and condenser among the prior art, compare the great technical scheme of occupation space in the air-conditioning box, two heat exchange core 12 of this disclosure set up along condensation evaporation heat exchanger 1's thickness direction is adjacent, compact structure, when installing condensation evaporation heat exchanger 1 in the air-conditioning box, can reduce the occupation space of condensation evaporation heat exchanger 1 in the air-conditioning box to be favorable to reducing air-conditioning box's overall dimension and whole weight.

Here, it should be noted that "the connection" in the above-mentioned "the first core port 121 of one heat exchange core 12 of the two heat exchange cores 12 is used for connecting with the compressor 2 of the air conditioning system, and the first core port 121 of the other heat exchange core 12 is used for connecting with the outdoor heat exchanger 3" may be a direct connection or an indirect connection, and the disclosure is not limited thereto. The "flow state" of the "expansion valve 11 having the throttled state and the flow state" mentioned above means that the expansion valve 11 in the flow state does not throttle the refrigerant, and the expansion valve 11 at this time corresponds to a single-stage flow line. The expansion switch valve 11 may be any valve capable of selectively achieving throttling or through-flow, for example, the expansion switch valve 11 may be internally configured as two throttling passages and a through-flow passage which are independent of each other, and the refrigerant may be throttled when passing through the throttling passages and may be directly conducted, i.e., not throttled, when passing through the through-flow passage, and the present disclosure does not limit the specific type of the expansion switch valve.

The heat exchanging cores 12 in the condensing-evaporating heat exchanger 1 may have any structure and shape, for example, in an exemplary embodiment provided in the present disclosure, as shown in fig. 2, each heat exchanging core 12 includes a first collecting pipe 13, a second collecting pipe 14 and a plurality of flat pipes 15 connected between the first collecting pipe 13 and the second collecting pipe 14, which are oppositely disposed in an up-down direction of the condensing-evaporating heat exchanger 1, two ends of each first collecting pipe 13 are open to form a first core opening 121 and a second core opening 122, two ends of each second collecting pipe 14 are closed, a partition 16 is disposed in each first collecting pipe 13, and the partition 16 divides the inside of the first collecting pipe 13 into a plurality of chambers. Therefore, in the heat exchange process, the refrigerant flows into the first collecting pipe 13 of the heat exchange core 12 from the first core opening 121, the partition plate 16 inside the first collecting pipe 13 has a stopping function on the refrigerant, the flow direction of the refrigerant can be changed, the refrigerant flows through one part of the flat pipe 15 from the first collecting pipe 13 to reach the second collecting pipe 14, and then flows through the other part of the flat pipe 15 from the second collecting pipe 14 to return to the first collecting pipe 13, so that the refrigerant can flow in the heat exchange core 12 in a curve manner, the flow path and the flow time of the refrigerant are prolonged, and the heat exchange effect of the condensation-evaporation heat exchanger 1 can be improved.

In other embodiments, each heat exchanging core 12 may include a first collecting pipe 13, a second collecting pipe 14 and a flat pipe 15 connected between the first collecting pipe 13 and the second collecting pipe 14, which are oppositely disposed in the up-down direction of the condensing-evaporating heat exchanger 1, the first collecting pipe 13 and the second collecting pipe 14 may both be formed in a structure with one end open and the other end closed, the open ends of the two first collecting pipes 13 are first core openings 121, and the open ends of the two second collecting pipes are second core openings 122.

Here, the above-mentioned sealing in "both ends of each second header 14 are sealed" and "one end is open and the other end is sealed" may be implemented in various ways, for example, the second header 1002 may be integrally formed as a structure with a closed end face, and the end face of the second header 14 may also be sealed by using the end plate 1002.

In an alternative embodiment, the first core ports 121 of the two heat exchange core ports 12 may be opposite along the length direction of the first header 13 and the second header 14, and the second core ports 122 of the two heat exchange core ports 12 may be opposite along the length direction of the first header 13 and the second header 14, that is, the first core ports 121 and the second core ports 122 are adjacent along the thickness direction.

In another alternative embodiment, the first core openings 121 of two heat exchange cores 12 may be adjacent in the thickness direction, and the second core openings 122 of two heat exchange cores 12 may be adjacent in the thickness direction. In this way, the adjacent arrangement of the two first core ports 121 can reduce the arrangement length of the pipeline, and avoid the interference of the pipeline, and the adjacent arrangement of the two second core ports 122 can facilitate the connection with the expansion switch valve 11.

Optionally, the condensing-evaporating heat exchanger 1 may further include two side plates 1001, the flat tubes 15 are located between the two side plates 1001, and two ends of the side plates 1001 are respectively connected to the first collecting pipe 13 and the second collecting pipe 14. Because a plurality of flat pipes 15 are located between two sideboard 1001, sideboard 1001 can play the guard action to flat pipe 15.

In order to facilitate connection of the first core port 121 and the compressor 2 with the outdoor heat exchanger 3, as an exemplary embodiment, the first core ports 121 of the two heat exchange cores 12 are adjacent to each other in the thickness direction, the condensing-evaporating heat exchanger 1 further includes a first connecting structure 17 mounted on the heat exchange cores 12, a first flow passage and a second flow passage are provided in the first connecting structure 17, the first core port 121 of one heat exchange core 12 of the two heat exchange cores 12 is connected to the first flow passage, the first core port 121 of the other heat exchange core 12 is connected to the second flow passage, one of the first flow passage and the second flow passage is used for connecting with the compressor 2, the other is used for connecting with the outdoor heat exchanger 3, and the extending direction of at least one of the first flow passage and the second flow passage intersects with the axis of the first core port 121 connected thereto. That is, one of the first flow passage and the second flow passage may extend in a direction intersecting with an axis of the first core opening 121 to which it is connected, and the other may extend in a direction coaxial with the first core opening 121 to which it is connected, or both of the first flow passage and the second flow passage may extend in a direction intersecting with an axis of the first core opening 121 to which they are connected.

In this way, when the two heat exchange cores 12 are connected with the compressor 2 and the outdoor heat exchanger 3 through the first connecting structure 17, the refrigerant can change the flowing direction when flowing through at least one of the first flow passage and the second flow passage, so that the two heat exchange cores 12 can adapt to the compressor 2 and the outdoor heat exchanger 3 at different installation positions, and the situation that pipelines interfere with each other when the first core ports 121 of the two heat exchange core ports 12 are connected with the compressor 2 or the outdoor heat exchanger 3 is avoided as much as possible.

As shown in fig. 3 and 4, the first connection structure 17 may have any suitable structure and shape in order to realize that the extending direction of at least one of the first flow passage and the second flow passage intersects with the axis of the first core orifice 121 connected thereto.

As an exemplary embodiment, in order to realize that the extending direction of the first flow channel intersects with the axis of the first core port 121 connected thereto, and the extending direction of the second flow channel is coaxial with the axis of the first core port 121 connected thereto, the first connecting structure 17 may include a first connecting plate 171 and a second connecting plate 172 which are oppositely disposed, the second connecting plate 172 is located between the first connecting plate 171 and the heat exchange core 12, the first connecting plate 171 is formed with first through holes 1711 and second through holes 1712 which are arranged at intervals in the up-down direction, the second connecting plate 172 is formed with third through holes 1721 and fourth through holes 1722 which are adjacent in the thickness direction, wherein the first through holes 1711 are located below the second through holes 1712, the first connecting plate 1713 is further formed with first grooves 1713, the first through holes 1711 are located in the first grooves 1713, and the first grooves 1713 extend obliquely upward from the first through holes 1711, the second connecting plate 171172 is covered on the first connecting plate 171, the second connecting plate 172 covers the opening of the first groove 1713 and defines a first flow channel together with the first groove 1713, the third through hole 1721 is communicated with the first flow channel, and the second through hole 1712 is coaxial with the fourth through hole 1722 and defines a second flow channel together.

In the above embodiment, since the first recess 1713 extends obliquely upward from the first through hole 1711, and the first recess 1713 and the second connecting plate 172 together define the first flow passage, the refrigerant can flow along the extending direction of the first recess 1713 when flowing in the first flow passage, and the flow direction can be changed. In addition, since the first recess 1713 is formed in the first connection plate 171, the manufacturing process is simple, and the first recess 1713 is formed in the first connection plate 171 to form a meandering first flow path with the second connection plate 172, so that the first flow path can be more easily formed.

Alternatively, the first recess 1713 of the first connection plate 171 may be formed by casting, press molding, or the like.

In another embodiment, in order to facilitate the intersection of the extending direction of the first flow channel and the axis of the first core port connected thereto, and the extending direction of the second flow channel and the axis of the first core port connected thereto, the first connecting structure may include a first connecting plate and a second connecting plate which are oppositely disposed, the first connecting plate is formed with a first through hole and a second through hole which are arranged at an interval in the up-down direction, wherein the second connecting plate is formed with a third through hole and a fourth through hole which are adjacent in the thickness direction, the first through hole is located below the second through hole, the first connecting plate is further formed with a short groove and a long groove (not shown), the first through hole is located in the long groove and the long groove extends obliquely upward from the first through hole, the second through hole is located in the short groove and the short groove extends obliquely upward from the second through hole, the second connecting plate covers the first connecting plate, the second connecting plate covers the opening of the long groove and defines the first flow channel together with the long groove, the second connecting plate shields the opening of the short groove and defines a second flow channel together with the short groove, the third through hole is communicated with the first flow channel, and the fourth through hole is communicated with the second flow channel. In this way, the extending direction of the first flow channel intersects with the axis of the first core orifice connected thereto, the extending direction of the second flow channel intersects with the axis of the first core orifice connected thereto, and when the refrigerant flows in the first flow channel and the second flow channel, the refrigerant can flow along with the extending directions of the long grooves and the short grooves, and the flow direction can be changed.

Optionally, the cross-sectional shapes of the through holes of the third through hole 1721 and the fourth through hole 1722 mentioned above may be both circular, or the cross-sectional shapes of the through holes of the third through hole 1721 and the fourth through hole 1722 may also be both rectangular, or the cross-sectional shape of one of the through holes of the third through hole 1721 and the fourth through hole 1722 is circular and the cross-sectional shape of the other through hole is rectangular, and the specific shapes of the third through hole 1721 and the fourth through hole 1722 are not limited in this disclosure.

Alternatively, as shown in fig. 5 and 6, the first connecting structure 17 may further include a joint 18 mounted on the first connecting plate 171, the joint 18 is formed with a first cavity 181 and a second cavity 182 spaced apart in an up-down direction, the first cavity 181 is located below the second cavity 182, the first cavity 181 and the second cavity 182 are both formed to be open at one end and closed at the other end, the open end of the first cavity 181 is communicated with the first through hole 1711, the open end of the second cavity 182 is communicated with the second through hole 1712, the first cavity 181 and the second cavity 182 are respectively formed with a first interface 183 and a second interface 184, one of the first interface 183 and the second interface 184 is used for connecting with the compressor 2 through a first pipe 185, and the other is used for connecting with the outdoor heat exchanger 3 through a second pipe 186. The connection of the compressor 2 to the first connection plate 171 through the first pipe 185 and the connection of the outdoor heat exchanger 3 to the first connection plate 171 through the second pipe 175 may be facilitated by the joint 18.

Alternatively, the joint 18 may include a joint body 187 and a joint connector 188, the joint connector 188 being internally formed with two chambers open at both ends, the joint connector 188 being formed with two first annular flanges 1881 and two second annular flanges 1882, each chamber being in communication with one first annular flange 1881 and one second annular flange 1882 at both ends, the two first annular flanges 1881 being inserted into the open ends of the first cavity 181 and the open ends of the second cavity 182, respectively, and the two second annular flanges 1882 being inserted into the first through hole 1711 and the second through hole 1712 of the first connection plate 171, respectively, so as to facilitate the connection of the joint body 187 with the first connection plate 171.

Alternatively, the joint body 187 and the joint connector 188 may be detachably connected by bolts to facilitate replacement of parts.

In addition, in order to facilitate the connection of the expansion switch valve 11 with the second core ports 122 of the two heat exchange cores 12, the second core ports 122 of the two heat exchange cores 12 are adjacent in the thickness direction, the condensation-evaporation heat exchanger 1 further includes a second connecting structure 19, the expansion switch valve 11 is mounted on the heat exchange cores 12 through the second connecting structure 19, a third flow channel and a fourth flow channel are provided in the second connecting structure 19, the second core port 122 of one heat exchange core 12 of the two heat exchange cores 12 is communicated with the first port 112 of the expansion switch valve 11 through the third flow channel, the second port 113 of the other heat exchange core 12 is communicated with the second port 113 of the expansion switch valve 11 through the fourth flow channel, and the extending direction of at least one of the third flow channel and the fourth flow channel intersects with the axis of the second core port 122 connected therewith. That is, at least one of the third flow passage and the fourth flow passage may extend in a direction intersecting the axis of the second core orifice 122 to which it is connected, the other may extend in a direction coaxial with the second core orifice 122 to which it is connected, or both the third flow passage and the fourth flow passage may extend in a direction intersecting the axis of the second core orifice 122 to which they are connected.

In this way, when the two heat exchange cores 12 are connected to the expansion switch valve 11 through the second connecting structure 19, the refrigerant may change its flowing direction when flowing through at least one of the third flow channel and the fourth flow channel, so that the two heat exchange cores 12 can adapt to the expansion switch valve 11 in different installation positions, and the situation that the pipelines interfere with each other when the second core ports 122 of the two heat exchange core ports 12 are connected to the expansion switch valve 11 is avoided as much as possible.

The second connecting structure 19 may have any suitable structure and shape in order to achieve intersection of the extending direction of at least one of the third flow passage and the fourth flow passage with the axis of the second core orifice 122 connected thereto.

As an exemplary embodiment, in order to realize that the extending direction of the third flow passage intersects with the axis of the second core port 122 connected thereto, the extending direction of the fourth flow passage is coaxial with the axis of the second core port 122 connected thereto, the second connecting structure 19 includes a third connecting plate 191 and a fourth connecting plate 192 disposed oppositely, the third connecting plate 191 is located between the fourth connecting plate 192 and the expansion switch valve 11, the first valve port 112 and the second valve port 113 are arranged at intervals in the up-down direction, the third connecting plate 191 is formed with fifth through holes 1911 and sixth through holes 1912 arranged at intervals in the up-down direction, the fourth connecting plate 192 is formed with seventh through holes 1921 and eighth through holes 1922 adjacent in the thickness direction, wherein the fifth through holes 1911 are located below the sixth through holes 1912, the fifth through holes 1911 communicate with the first valve port 112, the sixth through holes 1912 communicate with the second port 113, and a second valve groove 1913 is further formed on the third connecting plate 191, a fifth through hole 1911 is located in the second groove 1913, the second groove 1913 extends obliquely upward from the fifth through hole 1911, the fourth connecting plate 192 covers the third connecting plate 191, the fourth connecting plate 192 covers the opening of the second groove 1913 and defines a third flow passage together with the second groove 1913, the seventh through hole 1921 communicates with the third flow passage, and the eighth through hole 1922 is coaxial with the sixth through hole 1912 and defines a fourth flow passage together.

In the above embodiment, since the second groove 1913 extends obliquely upward from the fifth through hole 1911, and the second groove 1913 and the fourth connecting plate 192 together define the third flow channel, when the refrigerant flows in the third flow channel, the refrigerant can flow along the extending direction of the second groove 1913, and the flow direction can be changed. In addition, since the second groove 1913 is formed in the third connection plate 191, which is simple in manufacturing process, the second groove 1913 extending in the oblique direction is formed in the third connection plate 191, and the second groove 1913 and the fourth connection plate 192 form a serpentine third flow channel, which is more convenient to form.

Alternatively, the second groove 1913 of the third connection plate 191 may be formed by casting, press molding, or the like.

In another embodiment, in order to facilitate the extending direction of the third flow channel intersecting with the axis of the second core port connected with the third flow channel, the extending direction of the fourth flow channel intersecting with the axis of the second core port connected with the fourth flow channel, the third connecting structure may include a third connecting plate and a fourth connecting plate which are oppositely arranged, the third connecting plate is formed with fifth through holes and sixth through holes which are arranged at intervals in the vertical direction, wherein the fourth connecting plate is formed with seventh through holes and eighth through holes which are adjacent in the thickness direction, the fifth through holes are positioned below the sixth through holes, the third connecting plate is further formed with short grooves and long grooves (not shown), the fifth through holes are positioned in the long grooves and the long grooves extend obliquely upward from the fifth through holes, the sixth through holes are positioned in the short grooves and the short grooves extend obliquely upward from the sixth through holes, the fourth connecting plate covers the third connecting plate, the fourth connecting plate covers the opening of the long grooves and defines the third flow channel together with the long grooves, the fourth connecting plate shields the opening of the short groove and defines a fourth flow channel together with the short groove. In this way, the extending direction of the third flow passage intersects with the axis of the second core opening connected thereto, and the extending direction of the fourth flow passage intersects with the axis of the second core opening connected thereto, so that when the refrigerant flows in the third flow passage and the fourth flow passage, the refrigerant can flow along the extending directions of the long grooves and the short grooves, and the flow direction can be changed.

Alternatively, as shown in fig. 7, the expansion switching valve 11 and the third connection plate 191 may be connected by a valve connection member 111. Two chambers with two open ends are formed inside the valve connecting member 111, two third annular flanges 1111 and fourth annular flanges 1112 are formed on the valve connecting member 111, two ends of each chamber are respectively communicated with one third annular flange 1111 and one fourth annular flange 1112, the two third annular flanges 1111 are respectively inserted into the first valve port 112 and the second valve port 113 of the expansion switch valve 11, and the two fourth annular flanges 1112 are respectively inserted into the fifth through hole 1911 and the sixth through hole 1912 of the third connecting plate 191. In addition, the valve connecting member 111 may be detachably connected to the third connecting plate 191 and the expansion switching valve 11 to facilitate replacement of parts.

As shown in fig. 8 to 9, a second aspect of the present disclosure provides an air conditioning system, including a compressor 2, an outdoor heat exchanger 3, an expansion valve 4, a four-way valve 5, and the above-mentioned condensation-evaporation heat exchanger 1, where the condensation-evaporation heat exchanger 1 is disposed indoors, an outlet of the compressor 2 is communicated with an a port of the four-way valve 5, a B port of the four-way valve 5 is communicated with a first port of the outdoor heat exchanger 3, a second port of the outdoor heat exchanger 3 is communicated with a first core port 121 of one of two heat exchange cores 12 through the expansion valve 4, a first core port 121 of the other heat exchange core 12 of the two heat exchange cores 12 is communicated with a C port of the four-way valve 5, and a D port of the four-way valve 5 is communicated.

When the air conditioning system is used specifically, the selection of the functions of the air conditioning system can be realized by controlling the working states of the four-way valve 5 and the expansion switch valve 11 of the condensing-evaporating heat exchanger 1.

Specifically, in the cooling condition, as shown in fig. 7, the port a of the four-way valve 5 is communicated with the port B, the port C of the four-way valve 5 is communicated with the port D, and the expansion switch valve 11 is in a through-flow state. Thus, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 2 sequentially flows into the outdoor heat exchanger 3 through the ports a and B of the four-way valve 5, the refrigerant releases heat to the air in the outdoor heat exchanger 3, the medium-temperature and high-pressure refrigerant flows out of the second port of the outdoor heat exchanger 3, the medium-temperature and high-pressure refrigerant is throttled by the expansion valve and becomes a low-temperature and low-pressure liquid refrigerant, the low-temperature and low-pressure liquid refrigerant enters one heat exchange core 12 of the condensation-evaporation heat exchanger 1 and absorbs heat in the heat exchange core 12 to be evaporated, the refrigerant evaporated in the heat exchange core 12 flows into the expansion switch valve 11 through the second core port 122 of the heat exchange core 12, at this time, the expansion switch valve 11 directly conducts the refrigerant, the refrigerant flowing out of the expansion switch valve 11 enters the other heat exchange core 12 connected to the compressor 2 and absorbs heat again, the refrigerant flowing out of the heat exchange core 12 passes through the ports C and D of the four-way valve in sequence and finally flows back to the compressor 2.

In the heating operation mode, as shown in fig. 8, the port a of the four-way valve 5 is connected to the port C, the port B of the four-way valve 5 is connected to the port D, and the expansion switch valve 11 is in a flow state. Thus, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 2 sequentially enters one heat exchange core 12 of the condensation-evaporation heat exchanger 1 through the port A and the port C of the four-way valve 5, is condensed and releases heat in the heat exchange core 12, the refrigerant condensed in the heat exchange core 12 passes through the second core port 122 of the heat exchange core 12 and flows into the expansion switching valve 11, and at this time, the expansion switch valve 11 directly conducts the refrigerant, the refrigerant flowing out of the expansion switch valve 11 enters another heat exchange core 12 connected with the outdoor heat exchanger 3, the refrigerant flowing out of the heat exchange core 12 is throttled by an expansion valve and then changed into a low-temperature and low-pressure liquid refrigerant, the refrigerant enters the outdoor heat exchanger 3 to be evaporated and absorb heat, and the refrigerant flowing out of the outdoor heat exchanger 3 sequentially passes through a port B and a port D of the four-way valve and finally flows back to the compressor 2.

In the defrosting and defogging operation mode, as shown in fig. 8, the port a of the four-way valve 5 is connected to the port C, the port B of the four-way valve 5 is connected to the port D, and the expansion switch valve 11 is in the throttle state. Thus, the high-temperature and high-pressure gaseous refrigerant flowing out of the compressor 2 sequentially enters one heat exchange core 12 of the condensation-evaporation heat exchanger 1 through the port A and the port C of the four-way valve 5, is condensed and releases heat in the heat exchange core 12, the refrigerant condensed in the heat exchange core 12 passes through the second core port 122 of the heat exchange core 12 and flows into the expansion switching valve 11, and at this time, the expansion switch valve 11 performs throttling action on the refrigerant, the low-temperature and low-pressure liquid refrigerant flowing out of the expansion switch valve 11 enters another heat exchange core 12 connected with the outdoor heat exchanger 3, and evaporation and heat absorption are completed in the heat exchange core 12, the refrigerant flowing out of the heat exchange core 12 is throttled by an expansion valve and then enters the outdoor heat exchanger 3 for evaporation and heat absorption again, and the refrigerant flowing out of the outdoor heat exchanger 3 sequentially passes through a port B and a port D of the four-way valve and finally flows back to the compressor 2.

It should be noted that, in the heating operation mode and the defrosting and demisting operation mode, the flow path and the flow direction of the refrigerant in the air conditioning system are the same, and the difference between the heating operation mode and the defrosting and demisting operation mode is that the expansion switch valve 11 is in a through-flow state in the heating operation mode, and the expansion switch valve 11 is in a throttle state in the defrosting and demisting operation mode.

Through the technical scheme, the flow direction of the refrigerant can be controlled by adjusting the four-way valve 5, the control of the flow direction of the refrigerant under the refrigeration working condition, the heating working condition and the defrosting and demisting working condition of the air-conditioning system is realized, the control logic is simple and reliable, the loop of the air-conditioning system can be simplified, and the number of valves and pipelines is reduced. The selection of the refrigeration working condition, the heating working condition and the defrosting and demisting working condition of the air conditioning system can be realized by controlling the working state of the expansion switch valve 11, when the expansion switch valve 11 is in a through-flow state, the refrigerant is evaporated or condensed in two heat exchange cores 12 of the condensation and evaporation heat exchanger 1, refrigeration or heating is realized, the expansion switch valve 11 is in a throttling state, the refrigerant is evaporated in one heat exchange core 12 of the two heat exchange cores 12 of the condensation and evaporation heat exchanger 1, the refrigerant is condensed in the other heat exchange core, and indoor defrosting and demisting are realized.

It should be noted that the above-mentioned "indoor" is a working environment in which the air conditioning system needs to complete cooling or heating to reach a specified temperature, or needs to complete defogging and defrosting, and may be a room or a vehicle cab, and is not limited specifically here. Meanwhile, the temperature, pressure and gas-liquid state of the refrigerant mentioned above are the temperature, pressure and gas-liquid state in the ideal operation state, and do not represent the real state of the refrigerant in the actual operation, so that the present disclosure is not limited.

According to still another aspect of the present disclosure, there is also provided a vehicle that may include the above-described condensation-evaporation heat exchanger 1, or the above-described air conditioning system.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The condensation-evaporation heat exchanger is characterized in that the condensation-evaporation heat exchanger (1) comprises an expansion switch valve (11) and two heat exchange cores (12) which are adjacently arranged along the thickness direction of the condensation-evaporation heat exchanger (1), the two heat exchange cores (12) are respectively provided with a first core opening (121) and a second core opening (122), refrigerant in each heat exchange core (12) can flow between the corresponding first core opening (121) and the corresponding second core opening (122), the first core opening (121) of one heat exchange core (12) of the two heat exchange cores (12) is used for being connected with a compressor (2) of an air conditioning system, the first core opening (121) of the other heat exchange core (12) is used for being connected with an outdoor heat exchanger (3) of the air conditioning system, and the second core opening (122) of one heat exchange core (12) of the two heat exchange cores (12) is connected with the other heat exchange core (11) through the expansion switch valve (11) A second core orifice (122) of the body (12);

the expansion switch valve (11) has a throttling state and a through-flow state, in the throttling state, the expansion switch valve (11) throttles the refrigerant flowing out of the second core port (122) of one heat exchange core (12) of the two heat exchange cores (12), in the through-flow state, the expansion switch valve (11) directly conducts the refrigerant flowing out of the second core port (122) of one heat exchange core (12) of the two heat exchange cores (12), and in the throttling state, the expansion switch valve is used for heat releasing and condensing of the refrigerant in the heat exchange core (12) connected with the compressor (2) and heat absorbing and evaporating of the refrigerant in the heat exchange core (12) connected with the outdoor heat exchanger (3).

2. A heat exchanger according to claim 1, wherein each of the heat exchanging cores (12) includes a first header (13), a second header (14) and a plurality of flat pipes (15) connected between the first header (13) and the second header (14), the first header (13) and the second header (14) are disposed opposite to each other in an up-down direction of the heat exchanger (1), two ends of each of the first headers (13) are open to form the first core opening (121) and the second core opening (122), two ends of each of the second headers (14) are closed, a partition plate (16) is disposed in each of the first headers (13), and the partition plate (16) divides the interior of the first header (13) into a plurality of chambers.

3. A condensing evaporative heat exchanger according to claim 2 wherein the first core openings (121) of two heat exchange cores (12) are adjacent in the thickness direction and the second core openings (122) of two heat exchange cores (12) are adjacent in the thickness direction.

4. A condensing evaporative heat exchanger according to any one of claims 1 to 3, wherein the first core ports (121) of the two heat exchange cores (12) are adjacent in the thickness direction, the condensing evaporative heat exchanger (1) further comprises a first connecting structure (17) mounted on the heat exchange cores (12), the first connecting structure (17) is provided therein with a first flow passage and a second flow passage, the first core port (121) of one heat exchange core (12) of the two heat exchange cores (12) is connected to the first flow passage, the first core port (121) of the other heat exchange core (12) is connected to the second flow passage, one of the first flow passage and the second flow passage is used for connecting to the compressor (2), the other is used for connecting to the outdoor heat exchanger (3), and the extending direction of at least one of the first flow passage and the second flow passage intersects with the axis of the first core port (121) connected thereto.

5. A condensing-evaporating heat exchanger according to claim 4 wherein the extending direction of the first flow passage intersects with the axis of the first core port (121) connected thereto, the extending direction of the second flow passage is coaxial with the axis of the first core port (121) connected thereto, the first connecting structure (17) comprises a first connecting plate (171) and a second connecting plate (172) which are oppositely disposed, the second connecting plate (172) is located between the first connecting plate (171) and the heat exchange core (12), the first connecting plate (171) is formed with first through holes (1711) and second through holes (1712) which are arranged at intervals in the up-down direction, the second connecting plate (172) is formed with third through holes (1721) and fourth through holes (1722) which are adjacent in the thickness direction,

the first through hole (1711) is located below the second through hole (1712), a first groove (1713) is further formed in the first connecting plate (171), the first through hole (1711) is located in the first groove (1713), the first groove (1713) extends obliquely upwards from the first through hole (1711), the second connecting plate (172) covers the first connecting plate (171), the second connecting plate (172) covers an opening of the first groove (1713) and defines the first flow channel together with the first groove (1713), the third through hole (1721) is communicated with the first flow channel, and the second through hole (1712) is coaxial with the fourth through hole (1722) and defines the second flow channel together.

6. A condensing-evaporating heat exchanger according to claim 5, characterized in that the first connecting structure (17) further comprises a joint (18) mounted on the first connecting plate (171), the joint (18) having formed therein first and second cavities (181, 182) arranged at an interval in the up-down direction, the first cavity (181) being located below the second cavity (182), the first and second cavities (181, 182) each being formed to be open at one end and closed at the other end, the open end of the first cavity (181) communicating with the first through hole (1711), the open end of the second cavity (182) communicating with the second through hole (1712), the first and second cavities (181, 182) having formed thereon first and second interfaces (183, 184), respectively, one of the first and second interfaces (183, 184) being adapted to be connected to the compressor (2) through a first pipe (185), the other one is used for being connected with the outdoor heat exchanger (3) through a second pipeline (186).

7. A condensing-evaporating heat exchanger according to any one of claims 1 to 3, characterised in that the second core ports (122) of two heat exchange cores (12) are adjacent in the thickness direction, the condensing-evaporating heat exchanger (1) further comprises a second connecting structure (19), the expansion switch valve (11) is mounted on the heat exchange cores (12) through the second connecting structure (19), a third flow passage through which the second core port (122) of one heat exchange core (12) of the two heat exchange cores (12) communicates with the first port (112) of the expansion switch valve (11) and a fourth flow passage through which the second core port (122) of the other heat exchange core (12) communicates with the second port (113) of the expansion switch valve (11) are provided in the second connecting structure (19), at least one of the third flow passage and the fourth flow passage extends in a direction intersecting an axis of a second core orifice (122) connected thereto.

8. A condensing-evaporating heat exchanger according to claim 7 wherein the third flow passage has an extending direction intersecting the axis of the second core port (122) connected thereto, the fourth flow passage has an extending direction coaxial with the axis of the second core port (122) connected thereto, the second connecting structure (19) comprises a third connecting plate (191) and a fourth connecting plate (192) disposed oppositely, the third connecting plate (191) is located between the fourth connecting plate (192) and the expansion switch valve (11), the first valve port (112) and the second valve port (113) are arranged at intervals in the up-down direction, the third connecting plate (191) is formed with fifth through holes (1911) and sixth through holes (1912) arranged at intervals in the up-down direction, the fourth connecting plate (192) is formed with seventh through holes (1921) and eighth through holes (1922) adjacent to each other in the thickness direction,

wherein the fifth via (1911) is located below the sixth via (1912), and the fifth through hole (1911) is communicated with the first valve port (112), the sixth through hole (1912) is communicated with the second valve port (113), a second groove (1913) is further formed on the third connecting plate (191), the fifth through hole (1911) is located in the second groove (1913) and the second groove (1913) extends obliquely upward from the fifth through hole (1911), the fourth connecting plate (192) is covered on the third connecting plate (191), the fourth connecting plate (192) blocks the opening of the second groove (1913) and defines the third flow passage together with the second groove (1913), the seventh through hole (1921) communicates with the third flow passage, and the eighth through hole (1922) is coaxial with the sixth through hole (1912) and collectively defines the fourth flow passage.

9. Air conditioning system, characterized by comprising a compressor (2), an outdoor heat exchanger (3), an expansion valve (4), a four-way valve (5) and a condensing-evaporating heat exchanger (1) according to any one of claims 1 to 8, the condensing-evaporating heat exchanger (1) is arranged indoors, the outlet of the compressor (2) is communicated with the A port of the four-way valve (5), a port B of the four-way valve (5) is communicated with a first port of the outdoor heat exchanger (3), the second port of the outdoor heat exchanger (3) is communicated with the first core port (121) of one heat exchange core (12) of the two heat exchange cores (12) through the expansion valve (4), the first core port (121) of the other heat exchange core (12) of the two heat exchange cores (12) is communicated with the C port of the four-way valve (5), and a D port of the four-way valve (5) is communicated with an inlet of the compressor (2).

10. A vehicle, characterized by comprising a condensing-evaporating heat exchanger (1) according to any one of claims 1 to 8, or an air conditioning system according to claim 9.