Integrated thermal management system, control method thereof and vehicle

Abstract

The invention provides an integrated heat management system, a control method thereof and a vehicle, the integrated heat management system comprises a refrigerant circulating system and a secondary refrigerant circulating system, a compressor of the refrigerant circulating system is provided with an air suction pipe and an exhaust pipe, the secondary refrigerant circulating system comprises a first heat exchanger capable of exchanging heat with the pipe wall of the air suction pipe, a second heat exchanger capable of exchanging heat with the pipe wall of the exhaust pipe and a battery heat exchanger. The battery heat exchanger is internally provided with a first heat exchange flow path capable of forming a battery cooling loop with the first heat exchanger and / or a second heat exchange flow path capable of forming a battery heating loop with the second heat exchanger, and the secondary refrigerant circulation system can be switched between the battery cooling loop and the battery heating loop. Temperature regulation and control in the vehicle cabin and temperature regulation and control in the battery pack are independent and do not influence each other, meanwhile, corresponding throttling elements, plate heat exchangers and the like do not need to be configured, the system design can be simplified, the system construction cost can be reduced, and operation, maintenance and management are more convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning design, and in particular relates to an integrated thermal management system and a control method thereof, and a vehicle. Background Art

[0002] The roof-mounted integrated thermal management bus air conditioner integrates the battery thermal management system with the cabin air conditioning system, which not only meets the thermal comfort of the cabin, but also ensures that the power battery operates within a safe temperature range. It also has the advantages of small size, light weight, and low cost, and is an inevitable trend in the development of pure electric vehicles.

[0003] Existing integrated thermal management technologies divide the evaporator into two parts, one part is used for in-vehicle cooling and heating, and the other part is used for heat exchange of the vehicle battery. The problem is that the capacities of in-vehicle cooling, heating and battery heat exchange affect each other. Since corresponding throttling elements need to be set for battery heat exchange, the cost of the entire thermal management system is also relatively high. Summary of the invention

[0004] Therefore, the present invention provides an integrated thermal management system and a control method thereof, and a vehicle, which can solve the technical problem that in the integrated thermal management system in the prior art, corresponding evaporators are respectively provided for the vehicle cabin and the battery, so that the cold and hot regulation capacity in the vehicle cabin and the heat exchange capacity of the battery affect each other, and the system configuration cost is high.

[0005] In order to solve the above problems, the present invention provides an integrated thermal management system, including a refrigerant circulation system and a coolant circulation system, wherein the refrigerant cycle includes a compressor, the compressor has an intake pipe and an exhaust pipe, the coolant circulation system includes a first heat exchanger capable of forming heat exchange with the wall of the intake pipe, a second heat exchanger capable of forming heat exchange with the wall of the exhaust pipe, and a battery heat exchanger for adjusting the temperature of the battery, the battery heat exchanger has a first heat exchange flow path capable of forming a battery cooling circuit with the first heat exchanger and / or a second heat exchange flow path capable of forming a battery heating circuit with the second heat exchanger, when the battery heat exchanger has both the first heat exchange flow path and the second heat exchange flow path, the coolant circulation system can switch between the battery cooling circuit and the battery heating circuit.

[0006] In some embodiments, pumping components are connected to both the battery cooling circuit and the battery heating circuit.

[0007] In some embodiments, a first connecting pipeline is arranged between the first port of the first heat exchanger and the first port of the first heat exchange path, a second connecting pipeline is arranged between the second port of the first heat exchanger and the second port of the first heat exchange path, a first electromagnetic on-off valve is arranged on the first connecting pipeline, and / or a second electromagnetic on-off valve is arranged on the second connecting pipeline; a third connecting pipeline is arranged between the first port of the second heat exchanger and the first port of the second heat exchange path, a fourth connecting pipeline is arranged between the second port of the second heat exchanger and the second port of the second heat exchange path, a third electromagnetic on-off valve is arranged on the third connecting pipeline, and / or a fourth electromagnetic on-off valve is arranged on the fourth connecting pipeline.

[0008] In some embodiments, the first heat exchanger is a sleeve structure, and the intake pipe is inserted into the central through hole of the sleeve structure; and / or the second heat exchanger is a sleeve structure, and the exhaust pipe is inserted into the central through hole of the sleeve structure.

[0009] In some embodiments, the hole wall of the central through hole of the sleeve structure has a plurality of slots extending radially outward, the slots pass through the two side end surfaces of the sleeve structure, and a plurality of fins are arranged on the outer peripheral walls of the intake pipe and the exhaust pipe, and each of the fins is inserted into each slot one by one.

[0010] In some embodiments, sealing rings are provided between the two end openings of the central through hole and the intake pipe and the exhaust pipe to form a seal on the two end faces of the sleeve structure, and the gap between the sleeve structure and the intake pipe and the exhaust pipe is filled with a heat-conducting medium; and / or, the slot is spirally arranged in the axial direction of the intake pipe or the exhaust pipe to form a spiral flow channel in the internal space of the sleeve structure.

[0011] In some embodiments, a plurality of pits arranged at intervals are formed on the groove wall surface of each of the slots; and / or the sealing ring has a clamp connecting ring connected to the sleeve structure and the intake pipe or to the sleeve and the exhaust pipe.

[0012] In some embodiments, the flow direction of the coolant in the first heat exchanger is opposite to the flow direction of the refrigerant in the intake pipe; and / or the flow direction of the coolant in the second heat exchanger is opposite to the flow direction of the refrigerant in the exhaust pipe.

[0013] The present invention also provides a vehicle, comprising the above-mentioned integrated management system.

[0014] The present invention also provides an integrated management system as described above, comprising the following steps:

[0015] Obtain work orders;

[0016] When the working instruction is a battery cooling instruction, the battery cooling circuit is controlled to be connected, and the battery heating circuit is controlled to be cut off; or,

[0017] When the working instruction is a battery heating instruction, the battery heating circuit is controlled to be connected, and the battery cooling circuit is controlled to be cut off; or,

[0018] When the working instruction is a battery natural temperature adjustment instruction, the battery cooling circuit and the battery heating circuit are controlled to be cut off.

[0019] An integrated thermal management system and a control method thereof, and a vehicle provided by the present invention have the following beneficial effects:

[0020] The purpose of cooling the battery pack is achieved by connecting the first heat exchange flow path in series in the battery cooling circuit, and the purpose of heating the battery pack is achieved by connecting the second heat exchange flow path in series in the battery heating circuit, so that the battery pack can be operated at a relatively suitable temperature by utilizing the cold on the suction pipe of the compressor or the heat on the exhaust pipe, thereby ensuring the working performance of the battery pack; in this technical solution, since the coolant cycle is independent of the refrigerant cycle and is not connected to the refrigerant cycle, the temperature control in the cabin and the temperature control of the battery pack are independent of each other and will not affect each other. At the same time, there is no need to configure corresponding throttling elements, plate heat exchangers, etc., involving fewer parts (especially wearing parts), which can simplify system design, reduce system construction costs, and make operation, maintenance and management more convenient. It should be particularly noted that since in this technical solution, the coolant cycle forms heat exchange at the suction pipe and the exhaust pipe respectively, it can reduce the occurrence of suction liquid carrying phenomenon that may be caused by too low suction temperature of the compressor and the disadvantages caused by too high exhaust temperature;

[0021] The first heat exchanger and the second heat exchanger are designed as sleeve structures, so that the heat exchanger forms a plug-in fit with the suction pipe or the exhaust pipe through the central through hole, forming a full wrap between the sleeve structure and the pipe body, thereby improving the heat exchange efficiency of both the coolant and the refrigerant;

[0022] By arranging a plurality of fins on the outer peripheral wall of the intake pipe or the exhaust pipe, the heat exchange area of ​​the pipe body can be significantly increased. At the same time, a slot extending toward the inner space of the sleeve structure is correspondingly arranged on the sleeve structure, and each fin is inserted into each slot to form a plug-in fit, thereby making the contact area between the coolant and the refrigerant larger, and improving the heat exchange efficiency. At the same time, the assembly fit of each fin and the slot can also form a limit on the circumferential displacement of the sleeve structure at least.

[0023] By filling the gap between the sleeve structure and the air intake pipe or the air exhaust pipe with a heat-conducting medium, the heat conduction performance between the pipe body and the sleeve structure can be further improved. However, it is understandable that due to the size error and assembly error of the aforementioned slots and fins during processing, the two cannot be guaranteed to fit completely after assembly. In this technical solution, filling the gap between the two with a heat-conducting medium can make the heat conduction and heat exchange effect between the two better.

[0024] Since the fins and the slots are both arranged along the axial spiral of the intake pipe or the exhaust pipe, the two can be objectively assembled and connected by means of threaded engagement, thereby ensuring the axial positioning of the sleeve structure in the intake pipe or the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 is a partial principle schematic diagram of an integrated thermal management system according to an embodiment of the present invention;

[0027] Figure 2 It is a schematic diagram of the assembly structure of the first heat exchanger and the intake pipe or the second heat exchanger and the exhaust pipe in the embodiment of the present invention.

[0028] The accompanying drawings are marked as follows:

[0029] 11. Compressor; 111. Intake pipe; 112. Exhaust pipe; 12. External heat exchanger; 13. Cabin heat exchanger; 14. Throttling element; 21. First heat exchanger; 211. First port; 212. Second port; 22. Second heat exchanger; 241. First electromagnetic on-off valve; 242. Second electromagnetic on-off valve; 243. Third electromagnetic on-off valve; 244. Fourth electromagnetic on-off valve. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0034] See also Figure 1 to Figure 2As shown, according to an embodiment of the present invention, an integrated thermal management system is provided, including a refrigerant circulation system (not labeled in the figure) and a secondary coolant circulation system (not labeled in the figure), wherein the refrigerant circulation includes a compressor 11, the compressor 11 has an intake pipe 111 and an exhaust pipe 112, the refrigerant circulation also includes a throttling element 14 (specifically, an electronic expansion valve), an off-vehicle heat exchanger 12 connected between the throttling element 14 and the exhaust pipe 112 and the throttling element 14, and a cabin heat exchanger 13 connected between the throttling element 14 and the intake pipe 111. It can be understood that in order to achieve dual-mode selection of heating and cooling in the cabin, in an embodiment not shown in the figure, a corresponding four-way valve is further provided in the refrigerant circulation to control the four-way valve. The flow path switching in the through valve realizes the purpose of cooling or heating the vehicle cabin by the refrigerant circulation. The refrigerant circulation system includes a first heat exchanger 21 capable of forming heat exchange with the wall of the intake pipe 111, a second heat exchanger 22 capable of forming heat exchange with the wall of the exhaust pipe 112, and a battery heat exchanger (not shown in the figure) for adjusting the temperature of the battery. The battery heat exchanger has a first heat exchange flow path (not shown in the figure, not labeled) that can form a battery cooling circuit with the first heat exchanger 21 and / or a second heat exchange flow path (not shown in the figure, not labeled) that can form a battery heating circuit with the second heat exchanger 22. When the battery heat exchanger has both the first heat exchange flow path and the second heat exchange flow path, the refrigerant circulation system can switch between the battery cooling circuit and the battery heating circuit.

[0035] In this technical solution, the purpose of cooling the battery pack is achieved by connecting the first heat exchange flow path in series in the battery cooling circuit, and the purpose of heating the battery pack is achieved by connecting the second heat exchange flow path in series in the battery heating circuit, so that the battery pack can be operated at a relatively suitable temperature by using the cold on the intake pipe 111 of the compressor 11 or the heat on the exhaust pipe 112, thereby ensuring the working performance of the battery pack; in this technical solution, since the coolant circulation is independent of the refrigerant circulation and is not connected with the refrigerant circulation, the temperature control in the cabin and the temperature control of the battery pack are independent of each other and will not affect each other, and there is no need to configure corresponding throttling elements, plate heat exchangers, etc., involving fewer parts (especially vulnerable parts), which can simplify system design, reduce system construction costs, and make operation and maintenance management more convenient. It should be particularly noted that since in this technical solution, the coolant circulation forms heat exchange at the intake pipe 111 and the exhaust pipe 112 respectively, it can reduce the occurrence of the suction liquid phenomenon caused by the low suction temperature of the compressor 11 and the disadvantages caused by the high exhaust temperature.

[0036] In some embodiments, the battery cooling circuit and the battery heating circuit are both connected to a pumping component, and the pumping component can be, for example, a commercially available water pump with suitable specifications, so as to provide power for the circulation of the coolant in the battery cooling circuit and the battery heating circuit. The coolant can specifically be an ethylene glycol aqueous solution. When the temperature of the application environment is higher than 0°C, tap water can be used. Of course, other types of coolants can be selected according to the actual use conditions. The refrigerant can be a refrigerant commonly used in the industry.

[0037] In some embodiments, a first connecting pipeline (not labeled in the figure) is provided between the first port 211 of the first heat exchanger 21 and the first port (not labeled in the figure) of the first heat exchange flow path, a second connecting pipeline (not labeled in the figure) is provided between the second port 212 of the first heat exchanger 21 and the second port (not labeled in the figure) of the first heat exchange flow path, a first electromagnetic on-off valve 241 is provided on the first connecting pipeline, and / or a second electromagnetic on-off valve 242 is provided on the second connecting pipeline, so as to realize the on-off of the first electromagnetic on-off valve 241 and the second electromagnetic on-off valve 242 by controlling the on-off of the first electromagnetic on-off valve 241 and the second electromagnetic on-off valve 242. Selective control of whether the battery pack is cooled or not; a third connecting pipeline (not labeled in the figure) is set between the first port of the second heat exchanger 22 and the first port of the second heat exchange flow path, and a fourth connecting pipeline (not labeled in the figure) is set between the second port of the second heat exchanger 22 and the second port of the second heat exchange flow path, and a third electromagnetic on-off valve 243 is set on the third connecting pipeline, and / or a fourth electromagnetic on-off valve 244 is set on the fourth connecting pipeline, so as to realize selective control of whether the battery pack is cooled or not by controlling the on-off of the third electromagnetic on-off valve 243 and the fourth electromagnetic on-off valve 244.

[0038] In some embodiments, see Figure 2 As shown, the first heat exchanger 21 is a sleeve structure, and the intake pipe 111 is inserted into the central through hole of the sleeve structure (not marked in the figure); similarly, the second heat exchanger 22 is also a sleeve structure, and the exhaust pipe 112 is inserted into the central through hole of the sleeve structure (not marked in the figure). The aforementioned sleeve structure can specifically be a cylinder with a central through hole. It can be understood that the aforementioned sleeve structure includes an inner cylinder and an outer cylinder outside the inner cylinder, and the closed space formed between the inner cylinder and the outer cylinder is the space for the circulation of the coolant, and the aforementioned corresponding ports (for example, the first port 211 and the second port 212 of the first heat exchanger 21 and the first port and the second port of the second heat exchanger 22) are formed at corresponding positions of the space.

[0039] In this technical solution, the first heat exchanger 21 and the second heat exchanger 22 are designed as a sleeve structure, so that the heat exchanger forms a plug-in fit with the intake pipe 111 or the exhaust pipe 112 through its central through hole, forming a full wrapping between the sleeve structure and the pipe body, thereby improving the heat exchange efficiency of both the coolant and the refrigerant.

[0040] In some embodiments, the hole wall of the central through hole of the sleeve structure has a plurality of slots (not shown in the figure, not labeled) extending radially outward, and the slots pass through the two side end surfaces of the sleeve structure. A plurality of fins (not shown in the figure, not labeled) are arranged on the outer peripheral walls of the intake pipe 111 and the exhaust pipe 112, and each of the fins is inserted into each slot one by one. The aforementioned fins can be integrally formed with the intake pipe 111 or the exhaust pipe 112, or in some embodiments, the aforementioned fins and the intake pipe 111 or the exhaust pipe 112 are welded into one. In a specific embodiment, the aforementioned slot can be a straight slot extending axially along the central through hole of the sleeve structure. At this time, the fin also extends axially along the aforementioned intake pipe 111 or exhaust pipe 112, and the two can be assembled in an axial insertion manner. At this time, a corresponding fixing structure should also be provided on the radial outer side of the intake pipe 111 or the exhaust pipe 112 to ensure a fixed connection between the sleeve structure and the pipe body. The aforementioned fixing structure can be, for example, a fixing connector such as a screw, a pin, and a clamp.

[0041] In this technical solution, by arranging a plurality of fins on the outer peripheral wall of the intake pipe 111 or the exhaust pipe 112, the heat exchange area of ​​the pipe body can be significantly increased. At the same time, slots extending toward the internal space of the sleeve structure are correspondingly arranged in the sleeve structure, and each fin is inserted into each slot to form a plug-in fit, thereby increasing the contact area between the coolant and the refrigerant and improving the heat exchange efficiency. At the same time, the assembly fit of each fin and the slot can also form at least a limitation on the circumferential displacement of the sleeve structure.

[0042] In some embodiments, sealing rings (not shown and not labeled in the figure) are provided between the two end openings of the central through hole and the intake pipe 111 and the exhaust pipe 112 to form a seal for the end faces of the sleeve structure at both ends. It can be understood that the sealing rings also form a seal for the end openings of each slot, and the gap between the sleeve structure and the intake pipe 111 and the exhaust pipe 112 is filled with a heat-conducting medium, such as thermal grease (or thermal silicone oil).

[0043] In this technical solution, by filling the gap between the sleeve structure and the intake pipe 111 or the exhaust pipe 112 with a heat-conducting medium, the thermal conductivity between the tube body and the sleeve structure can be further improved. It is understandable that due to the dimensional errors and assembly errors of the aforementioned slots and fins during processing, the two cannot be guaranteed to fit completely after assembly. However, filling the gap between the two with a heat-conducting medium in this technical solution can improve the heat conduction and heat exchange effect between the two.

[0044] In a preferred embodiment, a plurality of pits (not shown and not labeled) arranged at intervals are formed on the wall surface of each slot, so as to further increase the wall area and form storage space for the aforementioned heat-conducting medium to ensure heat conduction.

[0045] In other embodiments, the slot is spirally arranged in the axial direction of the intake pipe 111 or the exhaust pipe 112 to form a spiral flow channel in the internal space of the sleeve structure. In this case, the best is that the fin is also spirally arranged in the axial direction of the intake pipe 111 or the exhaust pipe 112 so that the fin and the slot are structurally compatible with each other. It should be noted that since the fin and the slot are both spirally arranged in the axial direction of the intake pipe 111 or the exhaust pipe 112, the two can objectively be assembled and connected by threaded engagement, which can ensure the axial position of the sleeve structure in the intake pipe 111 or the exhaust pipe 112.

[0046] The sealing ring has a clamp connecting ring (not shown in the figure) that is connected with the sleeve structure and the intake pipe 111 or with the sleeve and the exhaust pipe 112. Specifically, the clamp connecting ring has a metal circular ring body, and a rubber pad is pasted on one end face of the metal circular arc body, wherein the rubber pad is used for sealing, and the metal circular ring body can form a reliable and fixed connection between the sleeve structure and the intake pipe 111 or the exhaust pipe 112 through a corresponding connecting structure (such as a through hole or a connecting ear).

[0047] In order to further improve the heat exchange efficiency of both the coolant and the refrigerant, the flow direction of the coolant in the first heat exchanger 21 is opposite to the flow direction of the refrigerant in the intake pipe 111; and / or the flow direction of the coolant in the second heat exchanger 22 is opposite to the flow direction of the refrigerant in the exhaust pipe 112 to form a reverse flow.

[0048] The relevant formula of heat exchange in the present invention is as follows:

[0049] Q=U m ·A·ΔT m ,

[0050] Among them, Q is the total heat exchange, W;

[0051] U m ——Average heat transfer coefficient, W / (m 2 k)

[0052] A——heat exchange area, m 2 ;

[0053] ΔT m ——Average heat transfer temperature difference, ℃.

[0054] According to an embodiment of the present invention, there is also provided a vehicle, comprising the above-mentioned integrated management system.

[0055] According to an embodiment of the present invention, there is provided an integrated management system as described above, comprising the following steps:

[0056] Obtain work orders;

[0057] When the working instruction is a battery cooling instruction, the battery cooling circuit is controlled to be connected, and the battery heating circuit is controlled to be cut off to ensure cooling of the battery pack; or, when the working instruction is a battery heating instruction, the battery heating circuit is controlled to be connected, and the battery cooling circuit is controlled to be cut off to ensure heating of the battery pack; or, when the working instruction is a battery natural temperature control instruction, both the battery cooling circuit and the battery heating circuit are controlled to be cut off, and there is no need to cool or heat the battery pack. It should be noted that when the coolant uses a fluid that is easy to freeze, such as tap water, when the external environment is 0°C or below, the pumping components should be controlled to operate, and each electromagnetic on-off valve should be controlled to be in a conducting state to prevent the coolant from freezing and reduce the possibility of ice damaging the heat exchanger.

[0058] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An integrated thermal management system, characterized in that: The invention comprises a refrigerant circulation system and a coolant circulation system, wherein the refrigerant circulation comprises a compressor (11), the compressor (11) has an intake pipe (111) and an exhaust pipe (112), the coolant circulation system comprises a first heat exchanger (21) capable of forming a heat exchange with the wall of the intake pipe (111), a second heat exchanger (22) capable of forming a heat exchange with the wall of the exhaust pipe (112), and a battery heat exchanger for adjusting the temperature of the battery, the battery heat exchanger has a first heat exchange flow path capable of forming a battery cooling circuit with the first heat exchanger (21) and / or a second heat exchange flow path capable of forming a battery heating circuit with the second heat exchanger (22), and when the battery heat exchanger has both the first heat exchange flow path and the second heat exchange flow path, the coolant circulation system can switch between the battery cooling circuit and the battery heating circuit.

2. The integrated thermal management system according to claim 1, characterized in that: The battery cooling circuit and the battery heating circuit are both connected with pumping components.

3. The integrated thermal management system according to claim 1, characterized in that: A first connecting pipeline is arranged between the first port (211) of the first heat exchanger (21) and the first port of the first heat exchange flow path, a second connecting pipeline is arranged between the second port (212) of the first heat exchanger (21) and the second port of the first heat exchange flow path, a first electromagnetic on-off valve (241) is arranged on the first connecting pipeline, and / or a second electromagnetic on-off valve (242) is arranged on the second connecting pipeline; a third connecting pipeline is arranged between the first port of the second heat exchanger (22) and the first port of the second heat exchange flow path, a fourth connecting pipeline is arranged between the second port of the second heat exchanger (22) and the second port of the second heat exchange flow path, a third electromagnetic on-off valve (243) is arranged on the third connecting pipeline, and / or a fourth electromagnetic on-off valve (244) is arranged on the fourth connecting pipeline.

4. The integrated thermal management system according to claim 1, characterized in that: The first heat exchanger (21) is a sleeve structure, and the intake pipe (111) is inserted into the central through hole of the sleeve structure; and / or the second heat exchanger (22) is a sleeve structure, and the exhaust pipe (112) is inserted into the central through hole of the sleeve structure.

5. The integrated thermal management system according to claim 4, characterized in that: The wall of the central through hole of the sleeve structure is provided with a plurality of slots extending radially outward, the slots passing through the two side end surfaces of the sleeve structure, and a plurality of fins are arranged on the outer peripheral walls of the intake pipe (111) and the exhaust pipe (112), and each of the fins is inserted into each slot in a one-to-one correspondence.

6. The integrated thermal management system according to claim 5, characterized in that: Sealing rings are arranged between the two end openings of the central through hole and the intake pipe (111) and the exhaust pipe (112) to form a seal for the two end faces of the sleeve structure, and the gap between the sleeve structure and the intake pipe (111) and the exhaust pipe (112) is filled with a heat-conducting medium; and / or the slot is arranged in a spiral winding along the axial direction of the intake pipe (111) or the exhaust pipe (112) to form a spiral flow channel in the internal space of the sleeve structure.

7. The integrated thermal management system according to claim 6, characterized in that: A plurality of pits arranged at intervals are formed on the groove wall surface of each of the slots; and / or the sealing ring has a clamp connection ring connected to the sleeve structure and the intake pipe (111) or to the sleeve and the exhaust pipe (112).

8. The integrated thermal management system according to claim 1, characterized in that: The flow direction of the coolant in the first heat exchanger (21) is opposite to the flow direction of the refrigerant in the intake pipe (111); and / or the flow direction of the coolant in the second heat exchanger (22) is opposite to the flow direction of the refrigerant in the exhaust pipe (112).

9. A vehicle, characterized in that: An integrated management system comprising any one of claims 1 to 8.

10. An integrated management system according to any one of claims 1 to 8, characterized in that: The steps include: Obtain work orders; When the working instruction is a battery cooling instruction, the battery cooling circuit is controlled to be connected, and the battery heating circuit is controlled to be cut off; or, When the working instruction is a battery heating instruction, the battery heating circuit is controlled to be connected, and the battery cooling circuit is controlled to be cut off; or, When the working instruction is a battery natural temperature adjustment instruction, the battery cooling circuit and the battery heating circuit are controlled to be cut off.

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