Vehicle-mounted cold and warm box and vehicle heat management system

Abstract

The utility model provides a vehicle-mounted cold and warm box and a vehicle thermal management system, comprising: a vehicle thermal management water path comprising a cold water inlet, a hot water inlet, a cold water outlet and a hot water outlet; a water inlet of the cold-warm box is connected with a first stop valve, a water outlet of the cold-warm box is connected with a first three-way valve, and the other two ends of the first three-way valve are communicated with a cold water inlet and a hot water inlet of the vehicle heat management waterway respectively; and the third three-way valve is respectively connected with the first stop valve and the cold water outlet and the hot water outlet of the vehicle heat management waterway. According to the vehicle-mounted refrigerator, cooling liquid with different temperatures existing in a vehicle can be used as a cold and heat source of the refrigerator, and the semiconductor chilling plate is used for assisting, so that the application temperature range of the vehicle-mounted refrigerator is expanded.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted refrigeration equipment, specifically to vehicle-mounted insulated boxes and vehicle thermal management systems. Background Technology

[0002] Existing vehicle refrigerators typically use independent compressors for cooling or rely solely on thermoelectric coolers, but these solutions have the following problems:

[0003] 1. Semiconductor refrigerators have a narrow operating range, especially in high-temperature environments where their cooling effect is poor.

[0004] 2. Independent compressor systems are expensive and have noise issues.

[0005] 3. If the refrigeration pipes of a car air conditioner are used as the cold source for the refrigerator, the compressor speed and cooling capacity will be too high when the refrigerator is running alone, which will easily cause frequent start-stop. If the electric compressor is to run at low speed, it will be difficult to control and effectively lubricate it. If multiple evaporators are running together, it will be difficult to ensure the low evaporation temperature required by the refrigerator at the same time. In addition, the use of PTC or other electric heating methods in the heating scenario will result in high energy consumption.

[0006] 4. Directly introducing refrigerant into the cabin may pose safety risks; this is difficult to achieve in systems using flammable refrigerants or indirect heat exchange.

[0007] In view of this, the present invention provides an in-vehicle insulated box and a vehicle thermal management system. Utility Model Content

[0008] In view of the problems in the prior art, this utility model provides an in-vehicle refrigerator and a vehicle thermal management system, which overcomes the difficulties of the prior art. It can utilize the coolant of different temperatures in the vehicle as the cold and heat source of the refrigerator, and uses a semiconductor refrigeration chip as an auxiliary to expand the application temperature range of the in-vehicle refrigerator.

[0009] An embodiment of this utility model provides an in-vehicle air conditioning box and a vehicle thermal management system, including: a vehicle thermal management water circuit, including a cold water inlet, a hot water inlet, a cold water outlet, and a hot water outlet;

[0010] A heating / cooling box, wherein the inlet of the heating / cooling box is connected to a first shut-off valve, and the outlet is connected to a first three-way valve, the other two ends of the first three-way valve being respectively connected to the cold water inlet and the hot water inlet of the vehicle's thermal management water circuit; and

[0011] A third three-way valve is connected to the first shut-off valve, the cold water outlet, and the hot water outlet of the vehicle's thermal management water circuit, respectively.

[0012] Preferably, the vehicle thermal management water circuit includes:

[0013] One battery pack;

[0014] One compressor;

[0015] A first heat exchanger used in a water-cooled condenser;

[0016] A second heat exchanger used for the cabin heating core;

[0017] A third heat exchanger for the in-cabin evaporator;

[0018] A fourth heat exchanger for cooling battery packs;

[0019] A second three-way valve is connected to the battery pack, a second three-way node, and a first four-way node, respectively. The second three-way node is also connected to the first three-way valve and a third three-way node. The first four-way node is also connected to the first three-way valve, the first heat exchange pipeline of the fourth heat exchanger, and the heat exchange pipeline of the motor assembly, respectively.

[0020] Preferably, it further includes:

[0021] A fourth three-way valve is also connected to the second heat exchanger, an auxiliary heating element, and a first three-way node. The first three-way node is also connected to the battery pack and a third three-way valve. The third three-way node is also connected to the second heat exchanger and a fifth three-way node. The fifth three-way node is also connected to the heat exchange pipeline of the motor assembly and the first heat exchange pipeline of the first heat exchanger.

[0022] A fifth three-way valve is connected to the heat exchange pipeline of the motor assembly, the auxiliary heating element, and the first heat exchange pipeline of the first heat exchanger. The exhaust end of the compressor is connected to the second pipeline of the first heat exchanger, and the suction end is connected to the second heat exchange pipelines of the third and fourth heat exchangers. The second heat exchange pipelines of the third and fourth heat exchangers are connected to the second pipeline of the first heat exchanger.

[0023] Preferably, the heat exchange pipeline of the motor assembly includes:

[0024] One radiator;

[0025] A sixth three-way valve, wherein the sixth three-way valve is connected to the radiator and the first four-way node respectively;

[0026] A sixth three-way node is connected to the fifth three-way node, a motor controller and the sixth three-way valve respectively, and a second shut-off valve is connected in series between the sixth three-way node and the fifth three-way node;

[0027] A second four-way node is connected to the radiator, a drive motor, a fifth three-way valve and a seventh three-way valve respectively. The seventh three-way valve is also connected to the first heat exchange pipeline and the third three-way valve of the fourth heat exchanger respectively.

[0028] A vehicle charger, with its two ends connected to the motor controller and the drive motor, respectively.

[0029] Preferably, when the vehicle-mounted heating / cooling box is operating in heating mode:

[0030] The first three-way valve connects only the outlet of the heating / cooling box and the second three-way node, and disconnects the connection with the first four-way node;

[0031] The second three-way valve connects only the battery pack and the second three-way node, cutting off the connection with the first four-way node;

[0032] The third three-way valve connects only the first three-way node and the first shut-off valve, and disconnects from the seventh three-way valve.

[0033] The fourth three-way valve maintains three-way interconnection between the first three-way node, the second heat exchanger, and the auxiliary heating element;

[0034] The fifth three-way valve connects only the first heat exchange pipeline of the first heat exchanger and the auxiliary heating element, and disconnects the connection with the second four-way node.

[0035] The sixth three-way valve connects only the radiator and the first four-way node, and disconnects the connection with the sixth three-way node, while the second shut-off valve remains closed.

[0036] Preferably, when the vehicle-mounted refrigerator / heater is operating in cooling mode:

[0037] The first three-way valve connects only the outlet of the heating / cooling box and the first four-way node, and disconnects the connection with the second three-way node;

[0038] The second three-way valve connects only the battery pack and the first four-way node, and disconnects the connection with the second three-way node;

[0039] The third three-way valve maintains three-way interconnection between the first three-way node, the first shut-off valve, and the seventh three-way valve;

[0040] The fourth three-way valve connects only the second heat exchanger and the auxiliary heating element, and disconnects the connection with the first three-way node;

[0041] The fifth three-way valve connects only the first heat exchange pipeline of the first heat exchanger and the auxiliary heating element, and disconnects the connection with the second four-way node.

[0042] The sixth three-way valve is only connected to the radiator and the sixth three-way node, and the connection with the first four-way node is cut off. The second shut-off valve is cut off and the second shut-off valve remains open.

[0043] The seventh three-way valve connects only the first heat exchange pipeline and the third three-way valve of the fourth heat exchanger, and disconnects the connection with the second four-way node.

[0044] Preferably, a third water pump is also included, connected in series between the second four-way node and the radiator.

[0045] Preferably, it also includes a first water pump connected in series between the first four-way node and the first heat exchange pipeline of the fourth heat exchanger;

[0046] A second water pump is connected in series between the fifth tee node and the first heat exchange pipeline of the first heat exchanger.

[0047] Preferably, the inlet of the third heat exchanger is provided with a first expansion valve, and the inlet of the second heat exchange pipeline of the fourth heat exchanger is provided with a second expansion valve.

[0048] Preferably, the heating / cooling box has a built-in semiconductor cooling chip to cool the water inlet; or, the direction of the current is changed to heat the water inlet.

[0049] The vehicle-mounted refrigerator and vehicle thermal management system of this invention can utilize the coolant of different temperatures already present in the vehicle as the cold and heat source of the refrigerator, and use semiconductor cooling chips as an auxiliary to expand the application temperature range of the vehicle-mounted refrigerator. Attached Figure Description

[0050] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0051] Figure 1 This is a schematic diagram of the first type of vehicle-mounted insulated box and vehicle thermal management system of this utility model.

[0052] Figure 2 This is a schematic diagram of the second type of vehicle-mounted insulated box and vehicle thermal management system of this utility model.

[0053] Figure 3 This is a schematic diagram of the second type of vehicle-mounted insulated box and vehicle thermal management system of this utility model operating in heating mode.

[0054] Figure 4 This is a schematic diagram of the second type of vehicle-mounted insulated box and vehicle thermal management system of this utility model operating in cooling mode.

[0055] Figure Labels

[0056] 1. Hot and cold box

[0057] 2 Battery Pack

[0058] 31 First heat exchanger

[0059] 32 Second heat exchanger

[0060] 33 Third heat exchanger

[0061] 34 Fourth heat exchanger

[0062] 35 First expansion valve

[0063] 36 Second expansion valve

[0064] 37 First shut-off valve

[0065] 38 Second shut-off valve

[0066] 41 Radiator

[0067] 42 Motor Controller

[0068] 43 Car charger

[0069] 44 drive motors

[0070] 45 Auxiliary heating element

[0071] 5. Compressor

[0072] 61 First three-way valve

[0073] 62 Second Three-Way Valve

[0074] 63 Third three-way valve

[0075] 64 Fourth three-way valve

[0076] 65 Fifth three-way valve

[0077] 71 First Three-Way Node

[0078] 72 Second Three-Way Node

[0079] 73 Third Three-Way Node

[0080] 74 Sixth Three-Way Valve

[0081] 75 Fifth Three-Way Node

[0082] 76 Sixth Three-Way Node

[0083] 77 Seventh Three-Way Valve

[0084] 78 First Four-Way Node

[0085] 79 Second Four-way Node

[0086] 81 First Water Pump

[0087] 82 Second Water Pump

[0088] 83 Third Water Pump Detailed Implementation

[0089] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand the other advantages and effects of this application from the content disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0090] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0091] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0092] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0093] For the purpose of clearly describing this application, devices that are not relevant to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0094] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0095] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0096] Although the terms first, second, etc., are used in some instances herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0097] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0098] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the content of this present application, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0099] Figure 1 This is a schematic diagram of the first type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model. Figure 1As shown, the vehicle-mounted refrigerator / heater and vehicle thermal management system of this utility model are characterized by comprising: a vehicle thermal management water circuit 9, a refrigerator / heater 1, a first shut-off valve 37, a first three-way valve 61, and a third three-way valve 63. The vehicle thermal management water circuit 9 includes a cold water inlet, a hot water inlet, a cold water outlet, and a hot water outlet. The inlet of the refrigerator / heater 1 is connected to the first shut-off valve 37, and the outlet is connected to the first three-way valve 61. The other two ends of the first three-way valve 61 are respectively connected to the cold water inlet and the hot water inlet of the vehicle thermal management water circuit 9. The third three-way valve 63 is connected to the first shut-off valve 37, the cold water outlet, and the hot water outlet of the vehicle thermal management water circuit 9. This utility model utilizes the existing coolant of different temperatures in the vehicle as the heat source and cold source of the refrigerator, and uses a semiconductor refrigeration chip as an auxiliary to expand the application temperature range of the vehicle-mounted refrigerator.

[0100] Figure 2 This is a schematic diagram of the second type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model. Figure 2 As shown, in a preferred embodiment, the vehicle thermal management water circuit 9 includes: a battery pack 2, a compressor 5, a first heat exchanger 31 for a water-cooled condenser, a second heat exchanger 32 for a cabin heater core, a third heat exchanger 33 for a cabin evaporator, a fourth heat exchanger 34 for battery pack cooling, and a second three-way valve 62. The second three-way valve 62 is connected to the battery pack 2, a second three-way node 72, and a first four-way node 78. The second three-way node 72 is also connected to the first three-way valve 61 and the third three-way node 73. The first four-way node 78 is also connected to the first three-way valve 61, the first heat exchange pipeline of the fourth heat exchanger 34, and the heat exchange pipeline of the motor assembly, but is not limited thereto.

[0101] In a preferred embodiment, the system further includes a fourth three-way valve 64 and a fifth three-way valve 65. The fourth three-way valve 64 is also connected to the second heat exchanger 32, an auxiliary heating element 45, and a first three-way node 71. The first three-way node 71 is also connected to the battery pack 2 and a third three-way valve 63. The third three-way node 73 is also connected to the second heat exchanger 32 and a fifth three-way node 75. The fifth three-way node 75 is also connected to the heat exchange pipeline of the motor assembly and the first heat exchange pipeline of the first heat exchanger 31. The fifth three-way valve 65 is connected to the heat exchange pipeline of the motor assembly, the auxiliary heating element 45, and the first heat exchange pipeline of the first heat exchanger 31. The discharge end of the compressor 5 is connected to the second pipeline of the first heat exchanger 31, and the suction end is connected to the second heat exchange pipelines of the third heat exchanger 33 and the fourth heat exchanger 34. The second heat exchange pipelines of the third heat exchanger 33 and the fourth heat exchanger 34 are respectively connected to the second pipeline of the first heat exchanger 31, but this is not a limitation.

[0102] In a preferred embodiment, the motor assembly heat exchange piping includes: a radiator 41, a sixth three-way valve 74, a sixth three-way node 76, a second four-way node 79, and an on-board charger 43. The sixth three-way valve 74 is connected to the radiator 41 and the first four-way node 78. The sixth three-way node 76 is connected to the fifth three-way node 75, a motor controller 42, and the sixth three-way valve 74. A second shut-off valve 38 is connected in series between the sixth three-way node 76 and the fifth three-way node 75. The second shut-off valve 38 can be opened when cooling of the motor controller is required, or when the motor controller has residual heat. The second four-way node 79 is connected to the radiator 41, a drive motor 44, the fifth three-way valve 65, and a seventh three-way valve 77. The seventh three-way valve 77 is also connected to the first heat exchange piping of the fourth heat exchanger 34 and the third three-way valve 63. The on-board charger 43 is connected to the motor controller 42 and the drive motor 44 at both ends, but this is not a limitation.

[0103] Figure 3 This is a schematic diagram of the second type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model operating in heating mode. (See diagram for reference.) Figure 3 As shown, in a preferred embodiment, when the vehicle-mounted heating / cooling box is operating in heating mode: the first three-way valve 61 connects only the outlet of the heating / cooling box 1 and the second three-way node 72, and disconnects from the first four-way node 78. The second three-way valve 62 connects only the battery pack 2 and the second three-way node 72, and disconnects from the first four-way node 78. The third three-way valve 63 connects only the first three-way node 71 and the first shut-off valve 37, and disconnects from the seventh three-way valve 77. The fourth three-way valve 64 maintains three-way interconnection between the first three-way node 71, the second heat exchanger 32, and the auxiliary heating element 45. The fifth three-way valve 65 connects only the first heat exchange pipe of the first heat exchanger 31 and the auxiliary heating element 45, and disconnects from the second four-way node 79. The sixth three-way valve 74 connects only the radiator 41 and the first four-way node 78, and disconnects from the sixth three-way node 76. The second shut-off valve 38 remains shut off, but this is not a limitation.

[0104] Figure 4 This is a schematic diagram of the second type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model operating in cooling mode. (See diagram for reference.) Figure 4As shown, in a preferred embodiment, when the vehicle-mounted heat exchanger is operating in cooling mode: the first three-way valve 61 connects only the outlet of the heat exchanger 1 and the first four-way node 78, cutting off the connection with the second three-way node 72. The second three-way valve 62 connects only the battery pack 2 and the first four-way node 78, cutting off the connection with the second three-way node 72. The third three-way valve 63 maintains three-way interconnection between the first three-way node 71, the first shut-off valve 37, and the seventh three-way valve 77. The fourth three-way valve 64 connects only the second heat exchanger 32 and the auxiliary heating element 45, cutting off the connection with the first three-way node 71. The fifth three-way valve 65 connects only the first heat exchange pipe of the first heat exchanger 31 and the auxiliary heating element 45, and cuts off the connection with the second four-way node 79. The sixth three-way valve 74 connects only the radiator 41 and the sixth three-way node 76, and cuts off the connection with the first four-way node 78. The second shut-off valve 38 is shut off, and the second shut-off valve 38 remains open. The seventh three-way valve 77 connects only the first heat exchange pipe of the fourth heat exchanger 34 and the third three-way valve 63, and cuts off the connection with the second four-way node 79, but is not limited thereto.

[0105] In a preferred embodiment, a third water pump 83 is also included, connected in series between the second four-way node 79 and the radiator 41, but this is not a limitation.

[0106] In a preferred embodiment, a first water pump 81 is further included, connected in series between the first four-way node 78 and the first heat exchange pipeline of the fourth heat exchanger 34. A second water pump 82 is connected in series between the fifth three-way node 75 and the first heat exchange pipeline of the first heat exchanger 31, but is not limited thereto.

[0107] In a preferred embodiment, the inlet of the third heat exchanger 33 is provided with a first expansion valve 35, and the inlet of the second heat exchange pipeline of the fourth heat exchanger 34 is provided with a second expansion valve 36, but this is not a limitation.

[0108] In a preferred embodiment, the heating / cooling box 1 has a built-in semiconductor cooling chip to cool the water inlet of the heating / cooling box 1; or, the direction of the current is changed to heat the water inlet, but this is not a limitation.

[0109] This utility model can achieve various modes such as cooling of the hot and cold box, heating of the battery and passenger compartment simultaneously or separately, and heating of the passenger compartment while simultaneously cooling of the battery and hot and cold box through the combination and switching of the first three-way valve 61, the second three-way valve 62, the third three-way valve 63, the fourth three-way valve 64, and the fifth three-way valve 65.

[0110] The first three-way valve 61, the second three-way valve 62, the third three-way valve 63, the fourth three-way valve 64, the fifth three-way valve 65, the sixth three-way valve 74, and the seventh three-way valve 77 in this utility model are all three-way valves with switchable connection relationships, allowing adjustment in two-way or three-way connection states (a total of four connection states) with different selectable directions. The first three-way node 71, the second three-way node 72, the third three-way node 73, the fifth three-way node 75, and the sixth three-way node 76 are conventional three-way pipelines and do not have switching functions. The first four-way node 78 and the second four-way node 79 are conventional four-way pipelines and do not have switching functions.

[0111] Because the thermal management systems of new energy vehicles are diverse, they generally include a coolant system. For example, a coolant with a lower temperature (10-25°C) is used for battery cooling, while a coolant with a higher temperature (40-100°C) is used for cooling the motor, drive, and engine. Furthermore, the integration of functions and structures on the coolant side is developing rapidly. This invention utilizes these cold / hot water sources to achieve hot / cold switching, and by relying on the heat capacity of the coolant, it can achieve cold and heat storage, utilizing waste heat to achieve energy saving. At the same time, it can significantly reduce the start-stop frequency of the compressor, avoid NVH problems, and have minimal impact on the compressor's operating limits.

[0112] The specific embodiments of this utility model are as follows:

[0113] like Figure 1 As shown, the first type of vehicle-mounted refrigerator / heater and vehicle thermal management system of this utility model includes: a vehicle thermal management water circuit 9, a refrigerator / heater 1, a first shut-off valve 37, a first three-way valve 61, and a third three-way valve 63. The vehicle thermal management water circuit 9 includes a cold water inlet, a hot water inlet, a cold water outlet, and a hot water outlet. The inlet of the refrigerator / heater 1 is connected to the first shut-off valve 37, and the outlet is connected to the first three-way valve 61. The other two ends of the first three-way valve 61 are respectively connected to the cold water inlet and the hot water inlet of the vehicle thermal management water circuit 9. The third three-way valve 63 is connected to the first shut-off valve 37, the cold water outlet of the vehicle thermal management water circuit 9, and the hot water outlet. This embodiment can utilize the existing coolant at different temperatures in the vehicle as the heat source and cold source of the refrigerator, and uses a semiconductor refrigeration chip as an auxiliary to expand the application temperature range of the vehicle-mounted refrigerator.

[0114] like Figure 2As shown, in the second type of vehicle-mounted heating / cooling box and vehicle thermal management system of this utility model, based on the first type of vehicle-mounted heating / cooling box and vehicle thermal management system, the vehicle thermal management water circuit 9 includes: a battery pack 2, a compressor 5, a first heat exchanger 31 for a water-cooled condenser, a second heat exchanger 32 for a cabin heating core, a third heat exchanger 33 for a cabin evaporator, a fourth heat exchanger 34 for battery pack cooling, and a second three-way valve 62. The second three-way valve 62 is connected to the battery pack 2, a second three-way node 72, and a first four-way node 78, respectively. The second three-way node 72 is also connected to the first three-way valve 61 and the third three-way node 73. The first four-way node 78 is also connected to the first three-way valve 61, the first heat exchange pipeline of the fourth heat exchanger 34, and the heat exchange pipeline of the motor assembly, respectively. The fourth three-way valve 64 is also connected to the second heat exchanger 32, an auxiliary heating element 45, and the first three-way node 71. The first three-way node 71 is also connected to the battery pack 2 and the third three-way valve 63. The third three-way node 73 is also connected to the second heat exchanger 32 and a fifth three-way node 75. The fifth three-way node 75 is also connected to the heat exchange pipeline of the motor assembly and the first heat exchange pipeline of the first heat exchanger 31. The fifth three-way valve 65 is connected to the heat exchange pipeline of the motor assembly, the auxiliary heating element 45, and the first heat exchange pipeline of the first heat exchanger 31. The discharge end of the compressor 5 is connected to the second pipeline of the first heat exchanger 31, and the suction end is connected to the second heat exchange pipelines of the third heat exchanger 33 and the fourth heat exchanger 34. The second heat exchange pipelines of the third heat exchanger 33 and the fourth heat exchanger 34 are respectively connected to the second pipeline of the first heat exchanger 31. The motor assembly heat exchange piping includes: a radiator 41, a sixth three-way valve 74, a sixth three-way node 76, a second four-way node 79, and an on-board charger 43. The sixth three-way valve 74 is connected to the radiator 41 and the first four-way node 78. The sixth three-way node 76 is connected to the fifth three-way node 75, a motor controller 42, and the sixth three-way valve 74. The second four-way node 79 is connected to the radiator 41, a drive motor 44, the fifth three-way valve 65, and a seventh three-way valve 77. The seventh three-way valve 77 is also connected to the first heat exchange piping of the fourth heat exchanger 34 and the third three-way valve 63. The on-board charger 43 is connected at both ends to the motor controller 42 and the drive motor 44. A third water pump 83 is connected in series between the second four-way node 79 and the radiator 41. A first water pump 81 is connected in series between the first four-way node 78 and the first heat exchange piping of the fourth heat exchanger 34. The second water pump 82 is connected in series between the fifth tee node 75 and the first heat exchange pipe of the first heat exchanger 31. A first expansion valve 35 is installed at the inlet of the third heat exchanger 33, and a second expansion valve 36 is installed at the inlet of the second heat exchange pipe of the fourth heat exchanger 34. The heating / cooling box 1 has a built-in semiconductor cooling chip to cool the water inlet; alternatively, the current direction can be reversed to heat the water inlet. Figure 2Multiple three-way valves were used to construct the vehicle-mounted insulated box and vehicle thermal management system, but this structure is not limited to. Actual products can use multi-way valves to reduce the number and complexity of water pipes, depending on space requirements and system needs, but this is not a limitation.

[0115] Figure 3 This is a schematic diagram of the second type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model operating in heating mode. (See diagram for reference.) Figure 2 , 3 As shown, when the vehicle-mounted in-vehicle heat exchanger and vehicle thermal management system of this utility model are operating in heating mode, the hot water circulation pipeline refers to... Figure 3 As shown by the dashed arrows (the cut-off ends of the three-way valves are marked with "×"), when the vehicle-mounted heating and cooling box is operating in heating mode: the first three-way valve 61 connects only the outlet of the heating and cooling box 1 and the second three-way node 72, and cuts off the connection with the first four-way node 78. The second three-way valve 62 connects only the battery pack 2 and the second three-way node 72, and cuts off the connection with the first four-way node 78. The third three-way valve 63 connects only the first three-way node 71 and the first cut-off valve 37, and cuts off the connection with the seventh three-way valve 77. The fourth three-way valve 64 maintains three-way interconnection between the first three-way node 71, the second heat exchanger 32, and the auxiliary heating element 45. The fifth three-way valve 65 connects only the first heat exchange pipe of the first heat exchanger 31 and the auxiliary heating element 45, and cuts off the connection with the second four-way node 79. The sixth three-way valve 74 connects only the radiator 41 and the first four-way node 78, and cuts off the connection with the sixth three-way node 76. The second cut-off valve 38 remains closed. Figure 4 This is a schematic diagram of the second type of vehicle-mounted in-vehicle refrigerator / heater and vehicle thermal management system of this utility model operating in cooling mode. (See diagram for reference.) Figure 2 , 4 As shown, when the vehicle-mounted in-vehicle heat exchanger and vehicle thermal management system of this utility model are operating in cooling mode, the cold water circulation pipeline refers to... Figure 4As shown by the solid arrows (the cut-off end of the three-way valve is marked with an "×"), when the vehicle-mounted heat exchanger is operating in cooling mode: the first three-way valve 61 connects only the outlet of the heat exchanger 1 and the first four-way node 78, cutting off the connection with the second three-way node 72. The second three-way valve 62 connects only the battery pack 2 and the first four-way node 78, cutting off the connection with the second three-way node 72. The third three-way valve 63 maintains three-way interconnection between the first three-way node 71, the first cut-off valve 37, and the seventh three-way valve 77. The fourth three-way valve 64 connects only the second heat exchanger 32 and the auxiliary heating element 45, cutting off the connection with the first three-way node 71. The fifth three-way valve 65 connects only the first heat exchange pipe of the first heat exchanger 31 and the auxiliary heating element 45, and cuts off the connection with the second four-way node 79. The sixth three-way valve 74 connects only the radiator 41 and the sixth three-way node 76, and cuts off the connection with the first four-way node 78. The second shut-off valve 38 is shut off and remains open. The seventh three-way valve 77 connects only the first heat exchange pipe of the fourth heat exchanger 34 and the third three-way valve 63, and cuts off the connection with the second four-way node 79.

[0116] This invention uses coolant as a cold / heat carrier, which has the following advantages:

[0117] 1. By using coolant as the cold storage medium, the compressor does not need to operate at very low speeds when running as a standalone refrigerator. It can achieve good cooling performance by using the operating speed of an air conditioner, while also reducing the frequency of compressor start-stop (the same applies when heating).

[0118] 2. The heat source for the incubator can utilize the vehicle's waste heat (such as from compressor exhaust, motor and electronic control cooling, engine cooling, etc.) to reduce energy consumption;

[0119] 3. Using a semiconductor cooling chip as an auxiliary cold / heat source can overcome the problems of poor cooling effect in multi-evaporator operation and high-temperature scenarios, as well as poor heating effect when the water temperature is not high.

[0120] 4. Adapt to the current technological trend of component integration and the development requirements of natural refrigerant replacement.

[0121] In summary, the vehicle-mounted refrigerator and vehicle thermal management system of this invention can utilize the coolant of different temperatures already present in the vehicle as the cold and heat source of the refrigerator, and use semiconductor cooling / heating plates as an auxiliary to expand the application temperature range of the vehicle-mounted refrigerator.

[0122] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A vehicle thermally managed system comprising a vehicle-mounted refrigerator and freezer, wherein the vehicle-mounted refrigerator and freezer comprises: Comprise: A vehicle thermal management water circuit (9) comprising a cold water inlet, a hot water inlet, a cold water outlet, a hot water outlet; A cold and warm box (1), the water inlet of the cold and warm box (1) is connected with a first stop valve (37), the water outlet is connected with a first three-way valve (61), the other two ends of the first three-way valve (61) are respectively communicated with the cold water inlet and the hot water inlet of the vehicle thermal management water circuit (9); And A third three-way valve (63) connected with the first stop valve (37), the cold water outlet and the hot water outlet of the vehicle thermal management water circuit (9) respectively.

2. The in-vehicle chiller and vehicle thermal management system of claim 1, wherein, The vehicle thermal management water circuit (9) comprises: A battery pack (2); A compressor (5); A first heat exchanger (31) for water-cooled condenser; A second heat exchanger (32) for cabin warm core; A third heat exchanger (33) for cabin evaporator; A fourth heat exchanger (34) for battery pack refrigeration; A second three-way valve (62) connected with the battery pack (2), a second three-way node (72) and a first four-way node (78) respectively, the second three-way node (72) is also connected with the first three-way valve (61) and a third three-way node (73), the first four-way node (78) is also connected with the first three-way valve (61), a first heat exchange pipeline of the fourth heat exchanger (34) and a motor assembly heat exchange pipeline respectively.

3. The in-vehicle chiller and vehicle thermal management system of claim 2, wherein, Further comprising: A fourth three-way valve (64) also connected with the second heat exchanger (32), an auxiliary heating element (45) and a first three-way node (71) respectively, the first three-way node (71) is also connected with the battery pack (2) and the third three-way valve (63) respectively, the third three-way node (73) is also connected with the second heat exchanger (32) and a fifth three-way node (75) respectively, the fifth three-way node (75) is also connected with the motor assembly heat exchange pipeline and the first heat exchange pipeline of the first heat exchanger (31) respectively; And A fifth three-way valve (65) connected with the motor assembly heat exchange pipeline, the auxiliary heating element (45) and the first heat exchange pipeline of the first heat exchanger (31) respectively, the exhaust end of the compressor (5) is connected with the second pipeline of the first heat exchanger (31), the suction end is connected with the second heat exchange pipeline of the third heat exchanger (33) and the fourth heat exchanger (34) respectively, the second heat exchange pipeline of the third heat exchanger (33) and the fourth heat exchanger (34) is connected with the second pipeline of the first heat exchanger (31) respectively.

4. The in-vehicle chiller and vehicle thermal management system of claim 3, wherein, The motor assembly heat exchange pipeline comprises: A radiator (41); A sixth three-way valve (74) connected with the radiator (41) and the first four-way node (78) respectively; A sixth three-way node (76) connected with the fifth three-way node (75), a motor controller (42) and the sixth three-way valve (74) respectively, a second stop valve (38) is connected in series between the sixth three-way node (76) and the fifth three-way node (75); A second four-way node (79) is connected with the radiator (41), a drive motor (44), a fifth three-way valve (65) and a seventh three-way valve (77) respectively, and the seventh three-way valve (77) is also connected with the first heat exchange pipeline of the fourth heat exchanger (34) and the third three-way valve (63) respectively; A vehicle-mounted charger (43) is connected with the motor controller (42) and the drive motor (44) respectively.

5. The in-vehicle chiller and vehicle thermal management system of claim 4, wherein, When the vehicle-mounted cold and warm box works in the heating mode: The first three-way valve (61) only connects the water outlet of the cold and warm box (1) and the second three-way node (72), and cuts off the connection with the first four-way node (78); The second three-way valve (62) only connects the battery pack (2) and the second three-way node (72), and cuts off the connection with the first four-way node (78); The third three-way valve (63) only connects the first three-way node (71) and the first cut-off valve (37), and cuts off the connection with the seventh three-way valve (77); The fourth three-way valve (64) keeps the three-way interconnection of the first three-way node (71), the second heat exchanger (32) and the auxiliary heating element (45); The fifth three-way valve (65) only connects the first heat exchange pipeline of the first heat exchanger (31) and the auxiliary heating element (45), and cuts off the connection with the second four-way node (79); The sixth three-way valve (74) only connects the radiator (41) and the first four-way node (78), and cuts off the connection with the sixth three-way node (76), and the second cut-off valve (38) keeps cutting off.

6. The in-vehicle chiller and vehicle thermal management system of claim 4, wherein, When the vehicle-mounted cold and warm box works in the cooling mode: The first three-way valve (61) only connects the water outlet of the cold and warm box (1) and the first four-way node (78), and cuts off the connection with the second three-way node (72); The second three-way valve (62) only connects the battery pack (2) and the first four-way node (78), and cuts off the connection with the second three-way node (72); The third three-way valve (63) keeps the three-way interconnection of the first three-way node (71), the first cut-off valve (37) and the seventh three-way valve (77); The fourth three-way valve (64) only connects the second heat exchanger (32) and the auxiliary heating element (45), and cuts off the connection with the first three-way node (71); The fifth three-way valve (65) only connects the first heat exchange pipeline of the first heat exchanger (31) and the auxiliary heating element (45), and cuts off the connection with the second four-way node (79); The sixth three-way valve (74) only connects the radiator (41) and the sixth three-way node (76), and cuts off the connection with the first four-way node (78), and the second cut-off valve (38) cuts off, and the second cut-off valve (38) keeps conducting; The seventh three-way valve (77) only connects the first heat exchange pipeline of the fourth heat exchanger (34) and the third three-way valve (63), and cuts off the connection with the second four-way node (79).

7. The in-vehicle chiller and vehicle thermal management system of claim 4, wherein, A third water pump (83) is further included in series between the second four-way joint (79) and the radiator (41).

8. The in-vehicle chiller and vehicle thermal management system of claim 4, wherein, A first water pump (81) is further included in series between the first four-way joint (78) and the first heat exchange pipeline of the fourth heat exchanger (34). A second water pump (82) is further included in series between the fifth three-way joint (75) and the first heat exchange pipeline of the first heat exchanger (31).

9. The in-vehicle chiller and vehicle thermal management system of claim 4, wherein, The inlet of the third heat exchanger (33) is provided with a first expansion valve (35), and the inlet of the second heat exchange pipeline of the fourth heat exchanger (34) is provided with a second expansion valve (36).

10. The in-vehicle chiller and vehicle thermal management system of claim 1, wherein, The cold and warm box (1) is internally provided with a semiconductor refrigeration sheet for refrigeration or heating of the water inlet of the cold and warm box (1).

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