Phase change heat exchanger, heat management system and vehicle

Abstract

The utility model discloses a phase change heat exchanger, a heat management system and a vehicle. The phase change heat exchanger comprises a refrigeration flow channel, a phase change material layer and a heat exchange flow channel which are sequentially arranged in a stacked mode, and the phase change material layer is used for conducting heat exchange on the refrigeration flow channel and the heat exchange flow channel. The heat exchange flow channel is used for being connected with a waste heat generation module, and the refrigeration flow channel is used for being connected with an air conditioner module. The phase change heat exchanger can be used for achieving the heat storage function when the engine or the motor or the battery is cooled, preheating of the engine or the battery during cold start is completed through time transfer, and therefore system energy consumption is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of thermal management, and more specifically to a phase change heat exchanger, a thermal management system and a vehicle. Background Art

[0002] The existing vehicle thermal management solutions have the disadvantages of low integration and complex structure, which is mainly reflected in the fact that the power system and other modules in the vehicle use different thermal management solutions. Therefore, for the thermal management control of the whole vehicle, multiple thermal management systems must be used to meet the thermal management needs of the whole vehicle, resulting in poor thermal management effect of the whole vehicle and complex system control methods. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the first aspect of the present invention provides a phase change heat exchanger, comprising:

[0005] A refrigeration channel, a phase change material layer and a heat exchange channel are stacked in sequence, wherein the phase change material layer is used to perform heat exchange on the refrigeration channel and the heat exchange channel respectively;

[0006] The heat exchange channel is used to connect to the waste heat generation module, and the refrigeration channel is used to connect to the air conditioning module.

[0007] Optionally, the phase change heat exchanger comprises:

[0008] a first phase change heat exchange zone, wherein the heat exchange flow channel of the first phase change heat exchange zone is connected to the heat exchanger of the waste heat generation module through a pipeline;

[0009] a second phase change heat zone, wherein the heat exchange channel of the second phase change heat zone is connected to the heat exchanger of the waste heat generation module through a pipeline;

[0010] The first phase change heating zone and the second phase change heating zone are arranged separately or in combination.

[0011] Optionally, the first phase change hot zone and the second phase change hot zone are arranged in combination, and the cooling channel is arranged between the first phase change hot zone and the second phase change hot zone.

[0012] Optionally, the first phase change heat zone includes: more than one cooling channel, more than two heat exchange channels, and more than two phase change material layers; the second phase change heat zone includes: more than one cooling channel, more than two heat exchange channels, and more than two phase change material layers.

[0013] A second aspect of the utility model provides a thermal management system, comprising a phase change heat exchanger, a waste heat generation module and an air conditioning module as described in any one of the above technical solutions, wherein the waste heat generation module is connected to the heat exchange channel, and the air conditioning module is connected to the refrigeration channel;

[0014] The waste heat generation module includes: any one or more of a battery module, an engine module, and a motor module.

[0015] Optionally, the waste heat generation module includes a battery module, and the battery module includes:

[0016] Battery;

[0017] A heat pipe heat exchange cavity, wherein the heat pipe heat exchange cavity is connected to the phase change heat exchanger through a pipeline;

[0018] A heat pipe, wherein the heat pipe is disposed in the heat exchange cavity of the heat pipe, and the heat pipe and the battery can perform heat exchange;

[0019] A third phase change material layer is disposed in the heat exchange cavity of the heat pipe, and the third phase change material layer can exchange heat with the heat pipe.

[0020] Optionally, the battery module further includes:

[0021] A first three-way valve, the first three-way valve comprising a port, a port b, and a port c;

[0022] Port a of the first three-way valve is connected to the outlet end of the heat pipe heat exchange chamber, port b is connected to the inlet end of the heat exchange channel of the second phase change heat zone or the inlet end of the heat exchange channel of the first phase change heat zone, and port c is connected to the inlet end of the heat exchange channel of the first phase change heat zone or the inlet end of the heat exchange channel of the second phase change heat zone.

[0023] Optionally, the battery module further includes:

[0024] A first water pump is arranged at the inlet end of the heat exchange cavity of the heat pipe.

[0025] Optionally, the air conditioning module includes:

[0026] a compressor, the compressor comprising an inlet end and an outlet end;

[0027] A four-way valve comprises port a, port b, port c and port d, the inlet end of the compressor is connected to port c of the four-way valve, and the outlet end of the compressor is connected to port a of the four-way valve.

[0028] Optionally, the air conditioning module further includes:

[0029] An off-vehicle heat exchanger, wherein a first end of the off-vehicle heat exchanger is connected to the d port of the four-way valve, and a second end of the off-vehicle heat exchanger is connected to the refrigeration channel of the phase change heat exchanger.

[0030] Optionally, the air conditioning module further includes:

[0031] An in-vehicle heat exchanger, wherein a first end of the in-vehicle heat exchanger is connected to port b of the four-way valve, and a second end of the in-vehicle heat exchanger is respectively connected to a second end of the out-of-vehicle heat exchanger and the refrigeration channel of the phase change heat exchanger.

[0032] Optionally, the air conditioning module further includes:

[0033] A first electronic expansion valve, the first electronic expansion valve includes a first end and a second end, the second end of the first electronic expansion valve is connected to the inlet end of the refrigeration channel of the phase change heat exchanger, and the first end of the first electronic expansion valve is respectively connected to the second end of the in-vehicle heat exchanger and the b port of the four-way valve.

[0034] Optionally, the air conditioning module further includes:

[0035] The second electronic expansion valve comprises a first end and a second end, the second end of the second electronic expansion valve is connected to the second end of the external heat exchanger, and the first end of the second electronic expansion valve is respectively connected to the second end of the internal heat exchanger and the outlet end of the refrigeration channel of the phase change heat exchanger.

[0036] Optionally, the air conditioning module further includes:

[0037] A first solenoid valve, the first solenoid valve is arranged at a first end of the in-vehicle heat exchanger, and is used to control the on-off of the first end;

[0038] a third solenoid valve, wherein the first solenoid valve is disposed at the second end of the in-vehicle heat exchanger and is used to control the on-off of the second end;

[0039] A second solenoid valve is disposed between the second end of the in-vehicle heat exchanger and the first electronic expansion valve.

[0040] Optionally, the air conditioning module further includes:

[0041] A fourth three-way valve, the fourth three-way valve comprising port a, port b, and port c;

[0042] The a port of the fourth three-way valve is connected to the outlet end of the refrigeration channel of the phase change heat exchanger, the b port is connected to the inlet end of the compressor, and the c port is connected to the second end of the off-vehicle heat exchanger.

[0043] Optionally, the waste heat generation module includes an engine module, and the engine module includes:

[0044] engine;

[0045] A heater core is connected to a heat exchanger of the engine through a pipeline and is used for heating a passenger compartment of the vehicle.

[0046] Optionally, the engine module further includes:

[0047] A second three-way valve, wherein the second three-way valve comprises a port, a port, and a port;

[0048] The a port of the second three-way valve is connected to the outlet end of the heat exchange channel of the second phase change heat exchange zone, the b port is connected to the inlet end of the heat pipe heat exchange cavity, and the c port is connected to the inlet end of the heat exchanger of the engine.

[0049] Optionally, the engine module further includes:

[0050] A third three-way valve, the third three-way valve comprising port a, port b, and port c;

[0051] Port a of the third three-way valve is connected to the outlet of the heat exchanger of the engine, port b is connected to the inlet of the heat exchange channel of the second phase change heat exchange zone, and port c is connected to the inlet of the heater core.

[0052] Optionally, the engine module further includes:

[0053] A second water pump is disposed at an inlet end of a heat exchanger of the engine.

[0054] A third aspect of the present invention provides a vehicle, comprising a thermal management system according to any one of the above technical solutions.

[0055] According to a phase change heat exchanger, thermal management system and vehicle of the utility model, the phase change heat exchanger can be used to realize the heat storage function when the engine, motor or battery is cooled, and the preheating of the engine or battery during cold start can be completed through time transfer, thereby reducing system energy consumption and achieving energy saving effect. The phase change heat exchanger can also be connected to the air-conditioning module for heat exchange, and different working modes can be flexibly switched according to user needs during system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0057] Figure 1 It is a structural schematic diagram of a thermal management system according to a preferred embodiment of the utility model;

[0058] Figure 2 It is a structural schematic diagram of a phase change heat exchanger according to a preferred embodiment of the utility model;

[0059] Figure 3 It is a structural schematic diagram of a battery module heat exchanger according to a preferred embodiment of the utility model;

[0060] Figure 4 It is a schematic structural diagram of a thermal management system according to a preferred embodiment of the utility model.

[0061] Description of reference numerals:

[0062] 1: Phase change heat exchanger 2: Engine

[0063] 3: Compressor 4: Four-way valve

[0064] 5: External heat exchanger 6: Internal heat exchanger

[0065] 10: First loop 11: First phase change hot zone

[0066] 12: Second phase change hot zone 13: First check valve

[0067] 14: First water pump 15: Heat pipe heat exchange cavity

[0068] 16: Heat pipe 17: Battery

[0069] 18: First three-way valve 19: Third phase change material layer

[0070] 20: Second loop 21: Third loop

[0071] 22: Second three-way valve 23: Second one-way valve

[0072] 24: The third one-way valve 25: The second water pump

[0073] 26: Third three-way valve 27: Fourth one-way valve

[0074] 28: Warm air core 30: Refrigeration medium circuit

[0075] 31: Fourth one-way valve 32: First electronic expansion valve

[0076] 33: First solenoid valve 34: Fifth one-way valve

[0077] 35: Second electronic expansion valve 36: Third solenoid valve

[0078] 37: Second solenoid valve 38: Fourth three-way valve

[0079] 39: Seventh one-way valve 40: Fourth solenoid valve

[0080] 101: Second heat exchange channel 102: Refrigeration channel

[0081] 103: second phase change material layer 104: first heat exchange channel

[0082] 105: first phase change material layer 106: plate DETAILED DESCRIPTION

[0083] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0084] In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

[0085] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0086] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0087] The utility model discloses a phase change heat exchanger, a thermal management system and a vehicle.

[0088] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0089] like Figure 1 , Figure 2 As shown, in a preferred embodiment, a phase change heat exchanger 1 comprises:

[0090] A cooling channel 102, a phase change material layer and a heat exchange channel are stacked in sequence, and the phase change material layer is used to perform heat exchange on the cooling channel 102 and the heat exchange channel respectively;

[0091] The heat exchange channel and the cooling channel 102 are arranged adjacent to each other, and a phase change material layer is arranged between the heat exchange channel and the cooling channel 102. The phase change material layer can perform heat exchange with both the cooling channel 102 and the heat exchange channel.

[0092] The heat exchange channel is used to connect the waste heat generation module, and the cooling channel 102 is used to connect the air conditioning module; the waste heat generation module includes: any one or more of a battery module, an engine module, and a motor module;

[0093] The heat exchange channel can be connected to the heat exchanger of the battery module, the heat exchanger of the engine module, and the heat exchanger of the motor module through pipelines, and the cooling channel 102 can be connected to the air conditioning module through pipelines.

[0094] Figure 1 The battery module and the engine module are shown in the figure, but the motor module is not shown. The motor module can be connected in parallel with the engine module.

[0095] The phase change material layer is composed of a phase change material, which is a substance that changes shape with temperature and can provide latent heat. The process of a phase change material changing from solid to liquid or from liquid to solid is called a phase change process, and the phase change material will absorb or release a large amount of latent heat. The phase change material may include an organic compound or a composite material thereof, such as paraffin or a composite material thereof.

[0096] The phase change heat exchanger in this embodiment realizes the heat storage function when the engine, motor or battery is cooled, and completes the preheating of the engine or battery during cold start through time transfer, thereby reducing system energy consumption and achieving energy saving effect. The phase change heat exchanger can also be connected to the air-conditioning module for heat exchange, and different working modes can be flexibly switched according to user needs during system operation.

[0097] In one embodiment, the phase change heat exchanger 1 includes: one or more cooling channels 102, two or more heat exchange channels, and two or more phase change material layers.

[0098] like Figure 2 As shown, the phase change heat exchanger 1 includes: three cooling channels 102, four heat exchange channels, and six phase change material layers.

[0099] The cooling channel 102 and the heat exchange channel are always arranged adjacently, and a phase change material layer is arranged between the heat exchange channel and the cooling channel 102. The above-mentioned channel is arranged in the plate 106 and combined with the phase change material layer, so that the structure of the phase change heat exchanger 1 is a plate heat exchanger.

[0100] In one embodiment, if Figure 1 , Figure 2 As shown, the phase change heat exchanger 1 comprises:

[0101] A first phase change hot zone 11, a heat exchange channel of the first phase change hot zone 11 is connected to a heat exchanger of a battery module through a pipeline;

[0102] A second phase change heat zone 12, a heat exchange flow channel of the second phase change heat zone 12 is connected to a heat exchanger of the engine module and / or a heat exchanger of the motor module through a pipeline;

[0103] The first phase change hot zone 11 and the second phase change hot zone 12 are arranged in combination, that is, the phase change heat exchanger 1 is a single integral component.

[0104] like Figure 2 As shown, the first phase change hot zone 11 includes: a cooling channel 102, two first heat exchange channels 104, and two first phase change material layers 105. The second phase change hot zone 12 includes: a cooling channel 102, two second heat exchange channels 101, and two second phase change material layers 103.

[0105] Or Figure 4 As shown, the first phase change heat zone 11 and the second phase change heat zone 12 are separately arranged, that is, the phase change heat exchanger 1 is a plurality of separate components. The first phase change heat zone 11 and the second phase change heat zone 12 that are separately arranged have the same structure as the first phase change heat zone 11 and the second phase change heat zone 12 that are combined, but they are not combined together. Whether it is a combined arrangement or a separate arrangement, the technical effect produced by the phase change heat exchanger 1 is the same or similar, and only differs in the pipeline connection structure.

[0106] The first phase change hot zone 11 is mainly used for heat exchange with the battery 17, and the material performance of the first phase change material layer 105 needs to be able to adapt to the temperature change of the battery 17. The second phase change hot zone 12 is mainly used for heat exchange with the engine 2 and the motor, and the material performance of the second phase change material layer 103 needs to be able to adapt to the temperature change of the engine 2 and the motor. The materials of the first phase change material layer 105 and the second phase change material layer 103 can be the same or different.

[0107] In one embodiment, if Figure 1 , Figure 2As shown, the first phase change hot zone 11 and the second phase change hot zone 12 are arranged in combination, and a cooling channel 102 is arranged between the first phase change hot zone 11 and the second phase change hot zone 12. The first phase change material layer 105 and the second phase change material layer 103 are adjacent to each other on both sides of the cooling channel 102.

[0108] The embodiment of the utility model further provides a thermal management system, comprising the phase change heat exchanger according to any one of the above embodiments, and further comprising a waste heat generation module and an air conditioning module, wherein the waste heat generation module is connected to the heat exchange flow channel, and the air conditioning module is connected to the refrigeration flow channel 102;

[0109] The waste heat generation module includes: any one or more of a battery module, an engine module, and an electric motor module.

[0110] In one embodiment, if Figure 1 , Figure 3 As shown, the waste heat generation module includes a battery module, and the battery module includes:

[0111] A battery 17, which provides power to the vehicle when in operation, for example, can drive the motor to operate;

[0112] The heat pipe heat exchange chamber 15 is connected to the phase change heat exchanger 1 through a pipeline;

[0113] The heat pipe 16 is disposed in the heat exchange cavity 15. The heat pipe 16 and the battery 17 can exchange heat. A portion of the heat pipe 16 extends into the battery 17, and a portion of the heat pipe 16 extends into the heat exchange cavity 15.

[0114] The third phase change material layer 19 is disposed in the heat exchange cavity 15 of the heat pipe. The third phase change material layer 19 and the heat pipe 16 can perform heat exchange.

[0115] In one embodiment, if Figure 1 , Figure 4 As shown, the battery module also includes:

[0116] A first three-way valve 18, the first three-way valve 18 comprises a port a, a port b, and a port c;

[0117] Figure 1 In the embodiment, the a port of the first three-way valve 18 is connected to the outlet of the heat pipe heat exchange cavity 15, the b port is connected to the inlet of the heat exchange channel of the second phase change hot zone 12, and the c port is connected to the inlet of the heat exchange channel of the first phase change hot zone 11;

[0118] Figure 4In the embodiment, port a of the first three-way valve 18 is connected to the outlet of the heat pipe heat exchange cavity 15 , port b is connected to the inlet of the heat exchange channel of the first phase change hot zone 11 , and port c is connected to the inlet of the heat exchange channel of the second phase change hot zone 12 .

[0119] In one embodiment, if Figure 1 , Figure 4 As shown, the battery module also includes:

[0120] The first water pump 14 is disposed at the inlet end of the heat pipe heat exchange cavity 15 and is used to drive the coolant to flow.

[0121] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module includes:

[0122] Compressor 3, the compressor 3 comprises an inlet end and an outlet end, and the compressor 3 is used for compressing the refrigerant;

[0123] The four-way valve 4 includes port a, port b, port c and port d. The inlet end of the compressor 3 is connected to the port c of the four-way valve 4 , and the outlet end of the compressor 3 is connected to the port a of the four-way valve 4 .

[0124] The four-way valve 4 can switch the connection status of the four ports through the internal valve core control, for example: port a is connected with port b, port c is connected with port d, port a is connected with port d, and port c is connected with port b.

[0125] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0126] The external heat exchanger 5 has a first end connected to the d port of the four-way valve 4, and a second end connected to the cooling channel 102 of the phase change heat exchanger 1. The external heat exchanger 5 is a dual-purpose heat exchanger. Under certain working conditions, the external heat exchanger 5 is used as an evaporator, and under certain working conditions, the external heat exchanger 5 is used as a condenser.

[0127] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0128] The in-vehicle heat exchanger 6 has a first end connected to the port b of the four-way valve 4, and a second end connected to the second end of the out-vehicle heat exchanger 5 and the cooling channel 102 of the phase change heat exchanger 1. The in-vehicle heat exchanger 6 is a dual-purpose heat exchanger. Under certain working conditions, the in-vehicle heat exchanger 6 is used as an evaporator, and under certain working conditions, the in-vehicle heat exchanger 6 is used as a condenser.

[0129] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0130] The first electronic expansion valve 32 includes a first end and a second end. The second end of the first electronic expansion valve 32 is connected to the inlet end of the refrigeration channel 102 of the phase change heat exchanger 1. The first end of the first electronic expansion valve 32 is respectively connected to the second end of the in-vehicle heat exchanger 6 and the b port of the four-way valve 4.

[0131] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0132] The second electronic expansion valve 35 includes a first end and a second end. The second end of the second electronic expansion valve 35 is connected to the second end of the external heat exchanger 5. The first end of the second electronic expansion valve 35 is respectively connected to the second end of the internal heat exchanger 6 and the outlet end of the refrigeration channel 102 of the phase change heat exchanger 1.

[0133] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0134] A first solenoid valve 33, which is disposed at a first end of the in-vehicle heat exchanger 6 and is used to control the on / off of the first end;

[0135] The third solenoid valve 36 and the first solenoid valve 33 are arranged at the second end of the in-vehicle heat exchanger 6 and are used to control the on-off of the second end.

[0136] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0137] The second solenoid valve 37 is disposed between the second end of the in-vehicle heat exchanger 6 and the first electronic expansion valve 32 .

[0138] In one embodiment, if Figure 1 , Figure 4 As shown, the air conditioning module also includes:

[0139] A fourth three-way valve 38, the fourth three-way valve 38 comprises a port a, a port b, and a port c;

[0140] The a port of the fourth three-way valve 38 is connected to the outlet end of the cooling channel 102 of the phase change heat exchanger 1 , the b port is connected to the inlet end of the compressor 3 , and the c port is connected to the second end of the external heat exchanger 5 .

[0141] In one embodiment, if Figure 1 , Figure 4As shown, the waste heat generation module includes an engine module, and the engine module includes:

[0142] Engine 2, which provides driving force for the vehicle when in operation;

[0143] The heater core 28 is connected to the heat exchanger of the engine 2 through a pipeline and is used to heat the passenger compartment of the vehicle. The heater core 28 is provided with a fan, which can blow air to the passenger compartment of the vehicle for heating.

[0144] In one embodiment, if Figure 1 , Figure 4 As shown, the engine module also includes:

[0145] A second three-way valve 22, the second three-way valve 22 comprises a port a, a port b, and a port c;

[0146] Port a of the second three-way valve 22 is connected to the outlet end of the heat exchange channel of the second phase change heat zone 12 , port b is connected to the inlet end of the heat pipe heat exchange cavity 15 , and port c is connected to the inlet end of the heat exchanger of the engine 2 .

[0147] In one embodiment, if Figure 1 , Figure 4 As shown, the engine module also includes:

[0148] A third three-way valve 26, the third three-way valve 26 includes a port a, a port b, and a port c;

[0149] Port a of the third three-way valve 26 is connected to the outlet of the heat exchanger of the engine 2 , port b is connected to the inlet of the heat exchange channel of the second phase change heat zone 12 , and port c is connected to the inlet of the heater core 28 .

[0150] In one embodiment, if Figure 1 , Figure 4 As shown, the engine module also includes:

[0151] The second water pump 25 is disposed at the inlet end of the heat exchanger of the engine 2 and is used to drive the coolant to flow.

[0152] In one embodiment, the waste heat generation module comprises a motor module, the motor module comprising:

[0153] The electric motor provides driving force for the vehicle when the electric motor is working; the electric motor is not shown in the figure, and the electric motor can be connected in parallel with the engine 2;

[0154] The low-temperature radiator is a cooling device for the motor. The inlet end of the low-temperature radiator can be connected to the c port of the second three-way valve 22 , and the outlet end of the low-temperature radiator can be connected to the a port of the third three-way valve 26 .

[0155] A third water pump may also be provided at the inlet end of the low-temperature radiator, and the third water pump is used to drive the coolant to flow.

[0156] In one embodiment, if Figure 1 , Figure 4 As shown, the thermal management system further includes: a plurality of one-way valves. The one-way valves are arranged at different positions of the pipeline to limit the flow direction of the coolant or refrigerant. For details, please refer to the working mode described below.

[0157] The first loop 10 may be represented by reference numerals: 11 → 13 → 14 → 15 → 18 → 11

[0158] The second loop 20 may be represented by reference numerals: 12 → 22 → 23 → 14 → 15 → 18 → 12

[0159] The third loop 21 can be represented by the following reference numerals: 12→22→25→2→26→27→12

[0160] The refrigerant circuit 30 can be represented by reference numerals: 3→4→39→3

[0161] The thermal management system in this embodiment has the following working modes:

[0162] Working mode 1: Single battery heating mode

[0163] Battery heating mode 1: Only the first loop 10 works, and the first phase change hot zone 11 is used to heat the battery 17. The coolant absorbs the heat in the first phase change material layer 105, and flows into the heat pipe heat exchange cavity 15 through the first one-way valve 13 and the first water pump 14 in sequence. After the working medium in the heat pipe 16 absorbs heat and evaporates in the evaporation section, it flows along the pipe to the condensation section and releases heat to the battery 17. After the coolant flows out of the heat pipe heat exchange cavity 15, it flows back to the first phase change hot zone 11 through the first three-way valve 18 (from a to c).

[0164] Battery heating mode 2: Only the second loop 20 works, and the second phase change heat zone 12 is used to heat the battery 17. The coolant absorbs the heat in the second phase change material layer 103, and flows into the heat pipe heat exchange cavity 15 through the second three-way valve 22 (flowing from a to b), the second one-way valve 23, and the first water pump 14 in sequence, and releases the heat to the battery 17 through the heat pipe 16. After the coolant flows out of the heat pipe heat exchange cavity 15, it flows back to the second heat exchange zone 12 through the first three-way valve 18 (flowing from a to b) and the third one-way valve 24 in sequence.

[0165] Battery heating mode 3: The first loop 10 and the refrigerant circuit 30 work together to heat the battery 17 using the air conditioning module. The first loop 10 works in the same way as in battery heating mode 1. The working mode of the air conditioning module is as follows: the refrigerant is compressed by the compressor 3, and enters the phase change heat exchanger 1 through the ab flow channel of the four-way valve 4, the fourth one-way valve 31, and the first electronic expansion valve 32 in sequence. After exchanging heat with the first phase change material layer 105 in the first phase change hot zone 11, the heat is transferred to the battery 17 through the first loop 10. After the refrigerant flows out of the phase change heat exchanger 1, it flows into the external heat exchanger 5 through the fourth three-way valve 38 (from a to c) and the second electronic expansion valve 35 to absorb heat and evaporate, and finally returns to the compressor 3 inlet through the dc flow channel of the four-way valve 4.

[0166] Working mode 2: Single engine heating mode

[0167] Engine heating mode 1: Only the third loop 21 works, and the second phase change heat zone 12 is used to heat the engine 2. The coolant absorbs the heat in the second phase change material layer 103, passes through the second three-way valve 22 (flowing from a to c), and the second water pump 25 to flow into the engine 2 to release the heat. After the coolant flows out of the engine 2, it flows back to the second heat exchange zone 12 through the third three-way valve 26 (flowing from a to b) and the fourth one-way valve 27.

[0168] Engine heating mode 2: The third loop 21 and the refrigerant circuit 30 work together to use the air conditioning module to heat the engine 7. The third loop 21 works in the same way as in engine heating mode 1, and the air conditioning module works in the same way as in battery heating mode 3.

[0169] Working mode 3: Single battery cooling mode

[0170] Battery cooling mode 1: only the first loop 10 works, the third phase change material 19 (which may be the same as the phase change material in the first phase change hot zone 11) absorbs heat in the battery 17 and releases it to the evaporation section of the heat pipe 16. After the internal working medium absorbs heat and evaporates, it flows along the pipe to the condensation section in the heat exchange cavity 15 of the heat pipe, and stores the heat in the first phase change material layer 105.

[0171] Battery cooling mode 2: The first loop 10 and the refrigerant circuit work together. The first loop 10 works in the same way as in battery cooling mode 1. The working mode of the air conditioning module is as follows: the refrigerant is compressed by the compressor 3, passes through the ad flow channel of the four-way valve 4 in sequence to enter the external heat exchanger 5 for cooling and condensation, passes through the second electronic expansion valve 35, the second solenoid valve 37, the fifth one-way valve 34, and the first electronic expansion valve 32 in sequence to flow into the phase change heat exchanger 1, and after exchanging heat with the first phase change material layer 105 in the first phase change hot zone 11, the heat in the battery is absorbed through the first loop 10. After the refrigerant flows out of the phase change heat exchanger 1, it flows back to the inlet of the compressor 3 through the fourth three-way valve 38 (from a to b).

[0172] Working mode 4: Single engine cooling mode

[0173] Engine cooling mode 1: only the third loop 21 works, and the coolant absorbs the heat of the engine 2 and stores it in the second phase change material layer 103 .

[0174] Engine cooling mode 2: the third loop 21 and the refrigerant circuit 30 work together, the third loop 21 works in the same manner as in engine cooling mode 1, and the air conditioning module works in the same manner as in battery cooling mode 3.

[0175] Working mode 5: battery and engine heating mode + air source heat pump heating mode

[0176] The first loop 10, the third loop 21 and the refrigerant circuit 30 work together, using the phase change heat exchanger 1 to heat the battery 17 and the engine 2, and the air conditioning module heats the passenger compartment. The first loop 10 works in the same way as in the battery heating mode 1, and the third loop 21 works in the same way as in the engine heating mode 1. The working mode of the air conditioning module is as follows: the refrigerant is compressed by the compressor 3, passes through the ab flow channel of the four-way valve 4, and the first solenoid valve 33 to enter the in-vehicle heat exchanger 6 to exchange heat with the air in the vehicle to achieve cooling and condensation. At this time, the air in the vehicle can be heated, and then passes through the third solenoid valve 36 and the second electronic expansion valve 35 to throttle, reduce pressure and cool, and then enter the external heat exchanger 5 to absorb heat and evaporate, and finally passes through the dc flow channel of the four-way valve 4 to return to the inlet of the compressor 3.

[0177] Furthermore, after the refrigerant flows out from the ab channel of the four-way valve 4, it can also enter the phase change heat exchanger 1 through the fourth one-way valve 31 and the first electronic expansion valve 32, and further heat the battery 17 and the engine 2 through the first loop 10 and the third loop 21 respectively. After the refrigerant flows out of the phase change heat exchanger 1, it flows into the external heat exchanger 5 through the fourth three-way valve 38 (from a to c).

[0178] Working mode 6: Water source + air source heat pump heating mode

[0179] The first loop 10, the third loop 21 and the refrigerant circuit 30 work together to heat the passenger compartment using the phase change heat exchanger 1 and the air conditioning module. The first loop 10 works in the same way as in the battery cooling mode 1, and the third loop 21 works in the same way as in the engine cooling mode 1. The working mode of the air conditioning module is as follows: the refrigerant is compressed by the compressor 3, passes through the ab flow channel of the four-way valve 4, and enters the in-vehicle heat exchanger 6 to exchange heat with the air in the vehicle, and is divided into two paths after passing through the third solenoid valve 36. One path passes through the second electronic expansion valve 35 to enter the outdoor heat exchanger 5 to absorb heat and evaporate, and finally passes through the dc flow channel of the four-way valve 4 to return to the compressor inlet; the other path passes through the second solenoid valve 37, the fifth one-way valve 34, and the first electronic expansion valve 32 in sequence to flow into the phase change heat exchanger 1, and after absorbing heat, flows back to the compressor 3 inlet through the fourth three-way valve 38 (flowing from a to b).

[0180] Working mode 7: Engine heating mode

[0181] After absorbing the heat of the engine 2 , the coolant passes through the third three-way valve 26 (flows from a to c) and enters the heater core 28 , exchanges heat with the air inside the vehicle, and then flows back to the engine 2 via the second water pump 25 .

[0182] Working mode 8: Air conditioning cooling mode

[0183] The refrigerant is compressed by the compressor 3, enters the outdoor heat exchanger 5 through the ad flow channel of the four-way valve 4 to exchange heat with the air to achieve cooling and condensation, and then enters the indoor heat exchanger 6 through the second electronic expansion valve 35 and the third solenoid valve 36 to absorb heat and evaporate. At this time, the air in the vehicle can be cooled, and finally returns to the inlet of the compressor 3 through the bc flow channel of the four-way valve 4 and the seventh one-way valve 39.

[0184] like Figure 4 As shown, the phase change heat exchanger 1 is split into two separate phase change heat exchangers. After the refrigerant flows out of the first electronic expansion valve 32, it is divided into two paths. One path flows into the second phase change heat zone 12 to exchange heat with the engine 2, and the other path flows into the first phase change heat zone 11 after passing through the fourth solenoid valve 40 to exchange heat with the battery 17. These two paths can work simultaneously or separately. The coolant flows out of the second phase change heat zone 12, passes through the second three-way valve 22 (flowing from a to b), the second one-way valve 23, and the first water pump 14 in sequence to flow into the heat pipe heat exchange chamber 15 to exchange heat with the battery 17, and then flows back to the second heat exchange zone 12 through the first three-way valve 18 (flowing from a to c).

[0185] An embodiment of the utility model further provides a vehicle, comprising the thermal management system described in any one of the above embodiments.

[0186] The utility model provides a phase change heat exchanger, a thermal management system and a vehicle, which have the following characteristics:

[0187] The phase change heat exchanger can be used to realize the heat storage function when the engine, motor or battery is cooling, and the preheating of the engine or battery during cold start can be completed through time transfer, thereby reducing system energy consumption and achieving energy saving effects. The design of the heat pipe layout method realizes efficient heat conduction. At the same time, the dual-purpose heat exchanger is used to realize a low-cost heat pump air-conditioning solution and can ensure the performance of cooling, heating and other modes. During the operation of the system, different working modes can be flexibly switched according to user needs.

[0188] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0189] In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0190] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0191] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0192] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model.

Claims

1. A phase change heat exchanger, characterized in that: include: A refrigeration channel (102), a phase change material layer and a heat exchange channel are stacked in sequence, wherein the phase change material layer is used to perform heat exchange on the refrigeration channel (102) and the heat exchange channel respectively; The heat exchange channel is used to connect to a waste heat generation module, and the refrigeration channel (102) is used to connect to an air conditioning module.

2. The phase change heat exchanger according to claim 1, characterized in that: The phase change heat exchanger comprises: A first phase change heat zone (11), wherein the heat exchange flow channel of the first phase change heat zone (11) is connected to the heat exchanger of the waste heat generation module via a pipeline; A second phase-change heat zone (12), wherein the heat exchange flow channel of the second phase-change heat zone (12) is connected to the heat exchanger of the waste heat generation module via a pipeline; The first phase change hot zone (11) and the second phase change hot zone (12) are arranged separately or in combination.

3. The phase change heat exchanger according to claim 2, characterized in that: The first phase change hot zone (11) and the second phase change hot zone (12) are arranged in combination, and the refrigeration flow channel (102) is arranged between the first phase change hot zone (11) and the second phase change hot zone (12).

4. The phase change heat exchanger according to claim 2 or 3, characterized in that: The first phase change hot zone (11) comprises: one or more cooling channels (102), two or more heat exchange channels, and two or more phase change material layers; the second phase change hot zone (12) comprises: one or more cooling channels (102), two or more heat exchange channels, and two or more phase change material layers.

5. A thermal management system, characterized in that: comprising the phase change heat exchanger, waste heat generation module and air conditioning module according to any one of claims 1 to 4, wherein the waste heat generation module is connected to the heat exchange channel, and the air conditioning module is connected to the refrigeration channel (102); The waste heat generation module includes: any one or more of a battery module, an engine module, and a motor module.

6. The thermal management system according to claim 5, characterized in that: The waste heat generation module includes a battery module, and the battery module includes: Battery (17); A heat pipe heat exchange cavity (15), wherein the heat pipe heat exchange cavity (15) is connected to the phase change heat exchanger (1) via a pipeline; A heat pipe (16), wherein the heat pipe (16) is arranged in the heat pipe heat exchange cavity (15), and the heat pipe (16) and the battery (17) are capable of performing heat exchange; A third phase change material layer (19), wherein the third phase change material layer (19) is arranged in the heat exchange cavity (15) of the heat pipe, and the third phase change material layer (19) and the heat pipe (16) are capable of performing heat exchange.

7. The thermal management system according to claim 6, characterized in that: The battery module further comprises: A first three-way valve (18), the first three-way valve (18) comprising a port a, a port b, and a port c; Port a of the first three-way valve (18) is connected to the outlet end of the heat pipe heat exchange chamber (15), port b is connected to the inlet end of the heat exchange channel of the second phase change heat zone (12) or the inlet end of the heat exchange channel of the first phase change heat zone (11), and port c is connected to the inlet end of the heat exchange channel of the first phase change heat zone (11) or the inlet end of the heat exchange channel of the second phase change heat zone (12).

8. The thermal management system according to claim 6, characterized in that: The battery module further comprises: A first water pump (14), wherein the first water pump (14) is arranged at the inlet end of the heat exchange chamber (15) of the heat pipe.

9. The thermal management system according to claim 5, characterized in that: The air conditioning module comprises: A compressor (3), the compressor (3) comprising an inlet end and an outlet end; A four-way valve (4), the four-way valve (4) comprising port a, port b, port c and port d, the inlet end of the compressor (3) being connected to port c of the four-way valve (4), and the outlet end of the compressor (3) being connected to port a of the four-way valve (4).

10. The thermal management system according to claim 9, characterized in that: The air conditioning module also includes: An off-vehicle heat exchanger (5), wherein a first end of the off-vehicle heat exchanger (5) is connected to the d port of the four-way valve (4), and a second end of the off-vehicle heat exchanger (5) is connected to the refrigeration channel (102) of the phase change heat exchanger (1).

11. The thermal management system according to claim 10, characterized in that: The air conditioning module also includes: An in-vehicle heat exchanger (6), wherein a first end of the in-vehicle heat exchanger (6) is connected to port b of the four-way valve (4), and a second end of the in-vehicle heat exchanger (6) is respectively connected to a second end of the out-of-vehicle heat exchanger (5) and the refrigeration channel (102) of the phase change heat exchanger (1).

12. The thermal management system according to claim 11, characterized in that: The air conditioning module also includes: A first electronic expansion valve (32), the first electronic expansion valve (32) comprises a first end and a second end, the second end of the first electronic expansion valve (32) is connected to the inlet end of the refrigeration channel (102) of the phase change heat exchanger (1), and the first end of the first electronic expansion valve (32) is respectively connected to the second end of the in-vehicle heat exchanger (6) and the b port of the four-way valve (4).

13. The thermal management system according to claim 11, characterized in that: The air conditioning module also includes: A second electronic expansion valve (35), the second electronic expansion valve (35) comprises a first end and a second end, the second end of the second electronic expansion valve (35) is connected to the second end of the off-vehicle heat exchanger (5), and the first end of the second electronic expansion valve (35) is respectively connected to the second end of the on-vehicle heat exchanger (6) and the outlet end of the refrigeration channel (102) of the phase change heat exchanger (1).

14. The thermal management system according to claim 12, characterized in that: The air conditioning module also includes: A first solenoid valve (33), the first solenoid valve (33) being arranged at a first end of the in-vehicle heat exchanger (6) and being used for controlling the on-off of the first end; a third solenoid valve (36), wherein the first solenoid valve (33) is arranged at the second end of the in-vehicle heat exchanger (6) and is used to control the on-off of the second end; A second solenoid valve (37), wherein the second solenoid valve (37) is arranged between the second end of the in-vehicle heat exchanger (6) and the first electronic expansion valve (32).

15. The thermal management system according to claim 10, characterized in that: The air conditioning module also includes: A fourth three-way valve (38), the fourth three-way valve (38) comprising a port a, a port b, and a port c; Port a of the fourth three-way valve (38) is connected to the outlet end of the refrigeration channel (102) of the phase change heat exchanger (1), port b is connected to the inlet end of the compressor (3), and port c is connected to the second end of the off-vehicle heat exchanger (5).

16. The thermal management system according to claim 6, characterized in that: The waste heat generation module includes an engine module, and the engine module includes: Engine (2); A heater core (28) is connected to a heat exchanger of the engine (2) via a pipeline and is used to heat the passenger compartment of the vehicle.

17. The thermal management system according to claim 16, characterized in that: The engine module further comprises: A second three-way valve (22), wherein the second three-way valve (22) comprises a port a, a port b, and a port c; Port a of the second three-way valve (22) is connected to the outlet end of the heat exchange channel of the second phase change heat zone (12), port b is connected to the inlet end of the heat pipe heat exchange cavity (15), and port c is connected to the inlet end of the heat exchanger of the engine (2).

18. The thermal management system according to claim 16, characterized in that: The engine module further comprises: A third three-way valve (26), the third three-way valve (26) comprising a port a, a port b, and a port c; Port a of the third three-way valve (26) is connected to the outlet of the heat exchanger of the engine (2), port b is connected to the inlet of the heat exchange channel of the second phase change heat exchange zone (12), and port c is connected to the inlet of the heater core (28).

19. The thermal management system according to claim 16, characterized in that: The engine module further comprises: A second water pump (25), wherein the second water pump (25) is arranged at the inlet end of the heat exchanger of the engine (2).

20. A vehicle, characterized in that: Comprising a thermal management system according to any one of claims 5-19.

Images