Heat exchanger components and vehicles

Abstract

This disclosure provides a heat exchanger assembly and a vehicle, belonging to the automotive field. Under normal vehicle use, generally, the first heat exchanger handles heat exchange for the air conditioning and battery, with a relatively low fluid heat load (i.e., the fluid carries relatively little heat); the second heat exchanger handles heat exchange for the motor assembly and intercooling system, with a relatively high fluid heat load (i.e., the fluid carries a relatively high heat); and the third heat exchanger handles heat exchange for the engine coolant, with the highest fluid heat load (i.e., the fluid carries the most heat). The heat exchangers are arranged in the following order according to the airflow direction: first heat exchanger, second heat exchanger, and third heat exchanger, i.e., ordered from lowest to highest heat load carried by the fluid within each heat exchanger. When air flows through the first heat exchanger, the change in air temperature is smaller compared to when it flows through the second or third heat exchanger. After flowing through the previous heat exchanger, the air still has a lower temperature when it flows through the next heat exchanger, which can still effectively cool the heat exchanger. In this way, the heat exchange of each heat exchanger in the heat exchanger assembly is relatively balanced, which can better ensure the normal heat exchange of each heat exchanger and thus better ensure the normal operation of the vehicle.

Description

Technical Field

[0001] This disclosure relates to the automotive field, and more specifically to a heat exchanger assembly and a vehicle. Background Technology

[0002] With the development of electric vehicles, more and more consumers are choosing to buy them as their daily mode of transportation. To keep an electric vehicle functioning properly, the temperature of various components needs to be regulated, such as the engine, cabin, and alternator.

[0003] Generally, the heat exchange method for various components is to arrange multiple heat exchangers in the engine compartment of the car, and to exchange heat with each heat exchanger by the air entering the engine compartment, thereby regulating the temperature of one or more components through each heat exchanger.

[0004] In typical vehicles, the arrangement of heat exchangers in the engine compartment along the airflow direction is rather random, resulting in uneven heat exchange among the heat exchangers. This can even cause heat exchangers that are positioned further back along the airflow direction to fail to exchange heat properly (the airflow temperature entering the heat exchanger is too high, while the temperature of the liquid inside the heat exchanger is too low, resulting in the inability to cool the liquid properly), which in turn affects the normal use of the vehicle. Summary of the Invention

[0005] This disclosure provides a heat exchanger assembly and a vehicle, which can solve the technical problems existing in the related art. The technical solution is as follows:

[0006] In a first aspect, embodiments of this disclosure provide a heat exchanger assembly applied to a target vehicle. The heat exchanger assembly includes a first heat exchanger, a second heat exchanger, and a third heat exchanger. The first heat exchanger is a heat exchanger for an air conditioner and a battery, the second heat exchanger is a heat exchanger for a motor assembly and an intercooler system, and the third heat exchanger is a heat exchanger for engine coolant.

[0007] The first heat exchanger, the second heat exchanger, and the third heat exchanger are located in the engine compartment of the vehicle, and are stacked in the order of the first heat exchanger, the second heat exchanger, and the third heat exchanger along a first direction, and are all connected to the engine compartment. The first direction is the air intake direction of the engine compartment.

[0008] In one possible implementation, the heat exchanger assembly further includes a first on / off ventilation channel, which is arranged along a second direction perpendicular to the first direction and is connected to both the first heat exchanger and the engine compartment. The ventilation direction of the first on / off ventilation channel is the first direction.

[0009] In one possible implementation, the first switchable ventilation duct is opposite to the air intake grille of the engine compartment.

[0010] In one possible implementation, the dimensions of the first switchable ventilation duct and the first heat exchanger in a plane perpendicular to the first direction are adapted to the engine compartment.

[0011] In one possible implementation, the heat exchanger assembly further includes a pressure sensor and a controller;

[0012] The pressure sensor is located inside the first heat exchanger and is connected to the first heat exchanger;

[0013] The controller is electrically connected to the pressure sensor and the first switchable ventilation channel. The controller is used to control the first switchable ventilation channel to open when the pressure detected by the pressure sensor is less than the pressure threshold, and to control the first switchable ventilation channel to close when the pressure detected by the pressure sensor is greater than or equal to the pressure threshold.

[0014] In one possible implementation, there is a gap between the first heat exchanger and the second heat exchanger, and a gap between the first on / off ventilation channel and the second heat exchanger.

[0015] In one possible implementation, the heat exchanger assembly further includes a plurality of first air guide vanes located at one end of the first switchable ventilation channel away from the air intake grille and connected to the first switchable ventilation channel, the plurality of first air guide vanes being used to diverge the airflow.

[0016] In one possible implementation, the second direction is a vertical direction, the first switchable ventilation channel is located below the first heat exchanger, the end of the plurality of first guide vanes near the second heat exchanger is higher than the end near the first heat exchanger, and the angle and height of each first guide vane relative to the first direction are positively correlated.

[0017] In one possible implementation, the dimensions of the second and third heat exchangers in a plane perpendicular to the first direction are adapted to the engine compartment.

[0018] In one possible implementation, the heat exchanger assembly further includes a second on / off ventilation channel, which is arranged with the second heat exchanger along the second direction. The second on / off ventilation channel is connected to the second heat exchanger and the engine compartment, respectively, and the ventilation direction of the second on / off ventilation channel is the first direction.

[0019] In one possible implementation, the second direction is vertical, the first switchable ventilation duct is opposite to the air intake grille of the engine compartment, the lower edge of the first switchable ventilation duct is in contact with the bottom of the engine compartment, the lower edge of the second switchable ventilation duct is at the same height as the upper edge of the first switchable ventilation duct, and a portion of the second heat exchanger is located above the second switchable ventilation duct and another portion is located below the second switchable ventilation duct.

[0020] In one possible implementation, the dimensions of the second switchable ventilation duct and the second heat exchanger in a plane perpendicular to the first direction are adapted to the engine compartment.

[0021] In one possible implementation, the heat exchanger assembly further includes a temperature sensor and a controller;

[0022] The temperature sensor is located in the fluid circuit of the second heat exchanger and is connected to the second heat exchanger;

[0023] The controller is electrically connected to the temperature sensor and the second switchable ventilation channel. The controller is used to control the second switchable ventilation channel to open when the temperature detected by the temperature sensor is less than the temperature threshold, and to control the second switchable ventilation channel to close when the temperature detected by the temperature sensor is greater than or equal to the temperature threshold.

[0024] In one possible implementation, the second switchable ventilation duct is opposite to the first switchable ventilation duct.

[0025] In one possible implementation, the dimensions of the second switchable ventilation duct and the second heat exchanger in a plane perpendicular to the first direction are adapted to the engine compartment.

[0026] In one possible implementation, the heat exchanger assembly further includes a temperature sensor and a controller;

[0027] The temperature sensor is located in the fluid circuit of the second heat exchanger and is connected to the second heat exchanger;

[0028] The controller is electrically connected to the temperature sensor and the second switchable ventilation channel. The controller is used to control the second switchable ventilation channel to open when the temperature detected by the temperature sensor is less than a temperature threshold, and to control the second switchable ventilation channel to close when the temperature detected by the temperature sensor is greater than or equal to a second temperature threshold.

[0029] In one possible implementation, the heat exchanger assembly further includes a fan and a controller, the fan being located on the side of the third heat exchanger away from the second heat exchanger and connected to the engine compartment, the fan blowing in the same direction as the air intake direction of the engine compartment;

[0030] The controller is electrically connected to the fan, and the controller is used for:

[0031] The driving state of the target vehicle is obtained, wherein the driving state includes both stationary and moving states;

[0032] When the vehicle is stationary, the fan is turned on.

[0033] In one possible implementation, the controller is further configured to:

[0034] Obtain the speed of the target vehicle;

[0035] When the driving speed exceeds a speed threshold, the fan is controlled to turn off.

[0036] In a second aspect, embodiments of this disclosure provide a vehicle that includes a heat exchanger assembly as described in the first aspect and its possible implementations.

[0037] In this disclosure, during normal vehicle use, generally speaking, the first heat exchanger is used for air conditioning and battery heat exchange, where the fluid heat load is relatively small, meaning the fluid carries relatively little heat. The second heat exchanger is used for motor assembly and intercooling system heat exchange, where the fluid heat load is relatively large, meaning the fluid carries a relatively high amount of heat. The third heat exchanger is used for engine coolant heat exchange, where the fluid heat load is the largest, meaning the fluid carries the most heat. The heat exchangers are arranged in the order of airflow direction: first heat exchanger, second heat exchanger, and third heat exchanger, ordered from low to high heat carried by the fluid within each heat exchanger. When air flows through the first heat exchanger, the change in air temperature is smaller compared to when it flows through the second or third heat exchanger. The air retains a relatively low temperature when flowing through a heat exchanger and then through another heat exchanger, effectively cooling that heat exchanger. This ensures relatively balanced heat exchange among the heat exchangers in the assembly, guaranteeing normal heat exchange and thus ensuring normal vehicle operation.

[0038] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of a heat exchange circuit for a second heat exchanger according to an embodiment of this disclosure;

[0041] Figure 2 This is a schematic diagram of a heat exchange circuit for a second heat exchanger according to an embodiment of this disclosure;

[0042] Figure 3 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0043] Figure 4 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0044] Figure 5 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0045] Figure 6 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0046] Figure 7 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0047] Figure 8 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0048] Figure 9 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0049] Figure 10 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure;

[0050] Figure 11 This is a schematic diagram of the structure of a heat exchanger assembly shown in an embodiment of this disclosure.

[0051] Legend:

[0052] 1. First heat exchanger;

[0053] 2. Second heat exchanger;

[0054] 3. Third heat exchanger;

[0055] 4. First switch-type ventilation duct;

[0056] 5. Pressure sensor;

[0057] 6. Controller;

[0058] 7. First guide vane;

[0059] 8. Second switch-type ventilation duct;

[0060] 9. Temperature sensor;

[0061] 10. Fan. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0063] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent disclosure and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0064] Generally, multiple heat exchangers can be arranged in the engine compartment of a vehicle, each designed to cool one or more components. The cooling process involves airflow entering the front grille carrying away heat from the liquid within the heat exchanger, thus cooling the liquid. The cooled liquid then flows to the interior or surface of individual components, further cooling them. A disorganized arrangement of heat exchangers in the engine compartment can lead to lower overall heat exchange efficiency, affecting the normal operation of the vehicle.

[0065] This disclosure provides a heat exchanger assembly comprising three heat exchangers arranged in a specific order. Heat exchange between these three heat exchangers achieves the purpose of cooling various components of a vehicle. Furthermore, the airflow direction can be adjusted via an on / off ventilation duct, thereby regulating the heat exchange capacity of the different heat exchangers. The heat exchanger assembly provided in this disclosure can be installed in a range-extended electric vehicle (REEV). Unlike traditional internal combustion engine vehicles, REEVs contain an engine and an electric motor. In REEVs, the engine powers the electric motor. When the battery is depleted and cannot output power, the engine drives a generator to generate electricity, thereby driving the vehicle.

[0066] The following is a description of each part of the heat exchanger assembly:

[0067] I. First heat exchanger 1

[0068] The first heat exchanger 1 is a component that facilitates heat transfer between two or more fluids at different temperatures, allowing heat to be transferred from a higher-temperature fluid to a lower-temperature fluid. The first heat exchanger 1 can be a condenser, containing a refrigerant circuit. Air blowing through the condenser can carry away the heat from the refrigerant, thus reducing its heat content. The refrigerant in the condenser flows through the air conditioning system and the battery, providing cool air to the vehicle cabin and cooling the electric vehicle's battery. When the first heat exchanger 1 is a condenser, it can control the heat of the refrigerant by compressing it.

[0069] II. Second heat exchanger 2

[0070] The second heat exchanger 2 is a component that enables heat transfer between two or more fluids at different temperatures, allowing heat to be transferred from a higher-temperature fluid to a lower-temperature fluid. The second heat exchanger 2 can be a low-temperature heat exchanger, which contains a water circuit. Air blowing through the low-temperature heat exchanger can carry away the heat from the water, thereby reducing the heat content of the water.

[0071] The liquid in the cryogenic heat exchanger can flow through various motor components, including the generator and its control unit, as well as the drive motor and its control unit, to reduce their temperatures. Additionally, the liquid in the cryogenic heat exchanger can also flow through the intercooler to cool it. The intercooler is a component in turbocharged vehicles, its function being to reduce the temperature of compressed air and improve engine ventilation efficiency. The way the liquid in the cryogenic heat exchanger flows through the various components can be as follows: Figure 1 As shown, the temperatures flowing through the intercooler, generator and generator control unit, and drive motor and drive motor control unit, respectively, can also be expressed as follows: Figure 2As shown, a liquid circuit flows through the intercooler, the generator and its control unit, and the drive motor and its control unit. Technicians can configure the circuit based on the actual vehicle structure and the cooling requirements of each component. This embodiment does not limit the specific configuration.

[0072] III. Third heat exchanger 3

[0073] The third heat exchanger 3 is a component that facilitates heat transfer between two or more fluids at different temperatures, allowing heat to be transferred from a higher-temperature fluid to a lower-temperature fluid. The liquid used to cool the engine can be called coolant. The third heat exchanger 3 can be a high-temperature heat exchanger with a liquid circuit. Air blowing through the high-temperature heat exchanger can carry away the heat from the liquid, thus reducing its temperature. The liquid in the high-temperature heat exchanger can be coolant, and the cooled coolant flows through the engine to cool it down. Alternatively, the liquid in the third heat exchanger may not be coolant, but rather water. The water circuit and the coolant circuit exchange heat at some point on the vehicle, thus cooling the engine coolant, which then flows through the engine to cool it down.

[0074] The functions of the first, second, and third heat exchangers described above are just one example of the embodiments of this disclosure. Different heat exchange components can also be provided for the heat exchangers, but these will not be described in detail in the embodiments of this disclosure.

[0075] The following describes the arrangement of the three heat exchangers, such as... Figure 3 and Figure 4 As shown, Figure 3 This is a side view of the car. Figure 4 This is a top view of the car. The first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 are located in the engine compartment, stacked sequentially along the airflow direction of the engine compartment (which can be referred to as the first direction), and all are connected to the engine compartment. The dimensions of the first heat exchanger 1, the second heat exchanger 2, and the third heat exchanger 3 in a plane perpendicular to the first direction are adapted to the engine compartment.

[0076] The heat exchangers work by using air blown in through the air inlet grille to carry away the heat from the fluid within them, thus reducing the heat of the fluid. The heat exchangers are arranged in the following order according to the airflow direction: heat exchanger 1, heat exchanger 2, and heat exchanger 3. Generally, the fluid heat load in heat exchanger 1 is relatively low, meaning it carries less heat; the fluid heat load in heat exchanger 2 is relatively high, meaning it carries a significant amount of heat; and the fluid heat load in heat exchanger 3 is the highest, meaning it carries the most heat. This arrangement, along the airflow direction, prioritizes the heat carried by the fluid in the heat exchangers from low to high. Therefore, the change in heat load after the airflow passes through the first heat exchanger is smaller compared to when it passes through the second or third heat exchanger, achieving the technical objective of better heat exchange across all three heat exchangers.

[0077] The following describes some optional structural features of the heat exchanger assembly:

[0078] Structural features: The heat exchanger assembly also includes a first switchable ventilation channel 4, a pressure sensor 5, and a controller 6.

[0079] like Figure 5 As shown, the first on / off ventilation duct 4 and the first heat exchanger 1 are arranged along a second direction, which is perpendicular to the first direction. The first on / off ventilation duct 4 is connected to both the first heat exchanger 1 and the engine compartment, and the ventilation direction of the first on / off ventilation duct 4 is the first direction. The first on / off ventilation duct 4 can be opposite to the air intake grille of the engine compartment. The dimensions of the first on / off ventilation duct 4 and the first heat exchanger 1 in a plane perpendicular to the first direction are adapted to the engine compartment.

[0080] When the first on / off ventilation channel 4 is closed, all the air blown in by the air intake grille flows through the first heat exchanger 1, thereby increasing the airflow in the first heat exchanger 1 and improving heat exchange for the fluid in the first heat exchanger 1. When the first on / off ventilation channel 4 is open, compared to when it is closed, the airflow through the second heat exchanger 2 and the third heat exchanger 3 increases, further improving heat exchange for the fluid in the second heat exchanger 2 and the third heat exchanger 3. Therefore, the first on / off ventilation channel 4 can balance the airflow based on the heat exchange requirements of the first heat exchanger 1, thereby better meeting the overall heat exchange requirements of the heat exchanger assembly.

[0081] The mechanism for opening or closing the first switch-type ventilation duct 4 is described in detail below. Figure 6 As shown, the heat exchanger assembly is also equipped with a pressure sensor 5 and a controller 6.

[0082] Pressure sensor 5 is located inside and connected to the first heat exchanger 1. Controller 6 is electrically connected to pressure sensor 5 and the first on / off ventilation channel 4. Controller 6 can be a vehicle-mounted controller with data processing capabilities. Controller 6 controls the first on / off ventilation channel 4 to open when the pressure detected by pressure sensor 5 is less than a pressure threshold, and controls the first on / off ventilation channel 4 to close when the pressure detected by pressure sensor 5 is greater than or equal to the pressure threshold. The pressure threshold can be set by those skilled in the art, and this embodiment does not limit this setting. The higher the pressure detected by pressure sensor 5, the greater the heat in the first heat exchanger 1, and the higher the heat exchange demand.

[0083] A first on / off ventilation channel 4 is added to the heat exchanger assembly, and the first on / off ventilation channel 4 is arranged side by side with the first heat exchanger 1. This allows the airflow direction to be adjusted by controlling the opening and closing of the first on / off ventilation channel 4. When the first on / off ventilation channel 4 is open, all the airflow can pass through the first heat exchanger 1, thus increasing the heat exchange efficiency of the first heat exchanger 1. When the first on / off ventilation channel 4 is open, some airflow passes through the first heat exchanger 1, and some airflow directly passes through the second heat exchanger 2, thereby increasing the heat exchange efficiency of the second heat exchanger 2 and the third heat exchanger 3. Therefore, by controlling the opening and closing of the first on / off ventilation channel 4, the heat exchange of each heat exchanger can be balanced, thereby increasing the overall heat exchange efficiency of the three heat exchangers.

[0084] Structural feature 2: The heat exchanger assembly includes not only the first switchable ventilation channel 4, pressure sensor 5 and controller 6, but also multiple first air guide vanes 7.

[0085] like Figure 7 As shown, multiple first guide vanes 7 are located at the end of the first switchable ventilation channel 4 away from the air intake grille and are connected to the first switchable ventilation channel 4. These first guide vanes 7 are used to guide the airflow in a divergent manner. The second direction is vertical. The first switchable ventilation channel 4 is located below the first heat exchanger 1. The end of each first guide vane 7 near the second heat exchanger 2 is higher than the end near the first heat exchanger 1. The angle of each first guide vane 7 relative to the first direction is positively correlated with its height; that is, the higher the height, the larger the angle with the first direction. Thus, when the first switchable ventilation channel 4 is open, the air flowing through it can be guided by the guide vanes, allowing the air passing through the first switchable ventilation channel to flow to a greater extent towards the upper parts of the second and third heat exchangers 2 and 3, thereby better exchanging heat with the fluids in the second and third heat exchangers 2 and 3.

[0086] Multiple guide vanes 7 are arranged at the end of the first switchable ventilation channel 4 away from the air intake grille, and the direction of the guide vanes 7 is related to the height of the guide vanes from the air intake grille. When the air flows through the first switchable ventilation channel 4, it continues to flow along the direction of the guide vanes. Therefore, compared with not setting the guide vanes 7, setting the guide vanes 7 allows the air that does not flow through the first heat exchanger 1 to not only flow through the part of the second heat exchanger 2 directly opposite the first switchable ventilation channel 4, but also to a large extent flow through the upper part of the second heat exchanger 2. The air that does not flow through the first heat exchanger 1 carries less heat than the air that flows through the first heat exchanger 1. Therefore, for the upper part of the second and third heat exchangers, not only the air flowing through the first heat exchanger 1 exchanges heat with the second heat exchanger 2 and the third heat exchanger 3, but also the air that does not flow through the first heat exchanger 1 exchanges heat with the second heat exchanger 2 and the third heat exchanger 3, thereby increasing the heat exchange efficiency of the second heat exchanger.

[0087] Structural feature three: The heat exchanger assembly includes not only the first switchable ventilation channel 4, pressure sensor 5, controller 6, and multiple first air guide vanes 7, but also the second switchable ventilation channel 8 and temperature sensor 9.

[0088] like Figure 8 As shown, the second switchable ventilation duct 8 and the second heat exchanger 2 are arranged along a second direction, which is vertical. The second switchable ventilation duct 8 is connected to the second heat exchanger 2 and the engine compartment, respectively, and the ventilation direction of the second switchable ventilation duct 8 is the first direction. The first switchable ventilation duct 4 is opposite to the air intake grille of the engine compartment, and the lower edge of the first switchable ventilation duct 4 is in contact with the bottom of the engine compartment. The lower edge of the second switchable ventilation duct 8 is at the same height as the upper edge of the first switchable ventilation duct 4. Part of the second heat exchanger 2 is located above the second switchable ventilation duct 8, and the other part is located below the second switchable ventilation duct 8. The dimensions of the second switchable ventilation duct 8 and the second heat exchanger 2 in a plane perpendicular to the first direction are adapted to the engine compartment. Part of the second heat exchanger 2 is connected to the other part through a pipeline.

[0089] When the second on / off ventilation channel 8 is closed, the airflow blown in by the air intake grille passes through the first heat exchanger 1 and then entirely flows through the second heat exchanger 2, thereby increasing the airflow in the second heat exchanger 2 and improving heat exchange for the fluid in the second heat exchanger 2. When the second on / off ventilation channel 8 is open, compared to when it is closed, the airflow through the third heat exchanger 3 is increased, further improving heat exchange for the fluid in the third heat exchanger 3. Therefore, the second on / off ventilation channel 8 can balance the airflow based on the heat exchange requirements of the second heat exchanger 2, thereby better meeting the overall heat exchange requirements of the heat exchanger assembly.

[0090] The mechanism for opening or closing the second switch-type ventilation duct 8 is described in detail below. Figure 9As shown, the heat exchanger assembly is also equipped with a temperature sensor 9 and a controller 6.

[0091] Temperature sensor 9 is located in the fluid circuit of the second heat exchanger 2 and is connected to the second heat exchanger 2. Controller 6 is electrically connected to temperature sensor 9 and the second on / off ventilation channel 8. Controller 6 controls the second on / off ventilation channel 8 to open when the temperature detected by temperature sensor 9 is lower than a temperature threshold, and controls the second on / off ventilation channel 8 to close when the temperature detected by temperature sensor 9 is greater than or equal to the temperature threshold. The temperature threshold can be set by those skilled in the art, and this embodiment does not limit this setting.

[0092] Optionally, the second switchable ventilation channel 8 can be opposite to the first switchable ventilation channel 4. When the second switchable ventilation channel 8 is opposite to the first switchable ventilation channel 4, the opening and closing mechanism of the second switchable ventilation channel 8 can be the same as the mechanism described above. For relevant details, please refer to the above description. This embodiment will not be described in detail here.

[0093] By simultaneously arranging the first switchable ventilation channel 4 and the second switchable ventilation channel 8 in the heat exchanger assembly, not only the heat exchange requirements of the first heat exchanger 1 can be taken into account, but also the heat exchange requirements of the second heat exchanger 2, thereby increasing the overall heat exchange efficiency of the heat exchanger assembly.

[0094] Optionally, the second switchable ventilation channel 8 can be similar to the first switchable ventilation channel 4, with a second guide vane arranged at the end furthest from the grille. The second guide vane is connected to the second switchable ventilation channel for divergent airflow guidance. The direction of the second guide vane can be height-dependent. When the second switchable ventilation channel 8 is offset from the first switchable ventilation channel 4, the direction of the second guide vane at the center height of the second switchable ventilation channel 4 can be set as the first direction. For other second guide vanes, the greater the difference in height from the center, the larger the angle with the first direction. When the first switchable ventilation channel 4 and the second switchable ventilation channel 8 are opposite each other, at the same height, the direction of the second guide vane can be the same as the direction of the first guide vane; this will not be elaborated further here.

[0095] A second guide vane is arranged at a point away from the air intake grille in the second switchable ventilation duct 8 to guide the incoming airflow, allowing it to continue flowing along the direction of the guide vane. The guide vane maximizes the flow of air through the second switchable ventilation duct 8 to the third heat exchanger, thereby increasing the heat exchange efficiency of the third heat exchanger.

[0096] Fourthly, the heat exchanger assembly also includes a fan 10.

[0097] The heat exchanger assembly may also include a fan 10, such as Figure 10As shown, the rotation of fan 10 can blow air into the engine compartment along the air intake direction. Fan 10 is electrically connected to controller 6. The controller can obtain the vehicle's driving status, which includes both stationary and moving states. When the vehicle is in motion, it can also obtain the vehicle's speed. When the vehicle's speed is greater than a speed threshold, more air can enter the vehicle's air intake grille while in motion, at which point fan 10 can be controlled to turn off. The speed threshold can be determined by relevant technicians based on actual conditions, and will not be described in detail in this embodiment. When the vehicle is stationary or the vehicle's speed is lower than the speed threshold, fan 10 can be controlled to turn on, and the power of fan 10 can be controlled according to the heat exchange requirements of each heat exchanger. Specifically, the heat exchange requirements of the first heat exchanger 1 and the second heat exchanger 2 can be sensed by the pressure sensor 5 at the first heat exchanger 1 and the temperature sensor 9 at the second heat exchanger 2.

[0098] Optionally, the heat exchanger assembly may also include an air guide shroud 11, such as Figure 11 As shown, the air deflector 11 can reduce the loss of air blowing into the engine compartment, thereby maximizing the flow of air into the engine compartment through each heat exchanger and enhancing the airtightness.

[0099] In this embodiment, during normal vehicle use, the first heat exchanger typically handles heat exchange for the air conditioning and battery, with a relatively low fluid heat load (i.e., the fluid carries a low amount of heat). The second heat exchanger handles heat exchange for the motor assembly and intercooling system, with a relatively high fluid heat load (i.e., the fluid carries a high amount of heat). The third heat exchanger handles heat exchange for the engine, with the highest fluid heat load (i.e., the fluid carries the highest amount of heat). The heat exchangers are arranged in the following order according to the airflow direction: first heat exchanger, second heat exchanger, and third heat exchanger, sorted from low to high based on the amount of heat carried by the fluid within each heat exchanger. When air flows through the first heat exchanger, the change in air temperature is smaller compared to when it flows through the second or third heat exchanger. The air retains a relatively low temperature when flowing through a heat exchanger and then through another heat exchanger, effectively cooling that heat exchanger. This ensures relatively balanced heat exchange among the heat exchangers in the assembly, guaranteeing normal heat exchange and thus ensuring normal vehicle operation.

[0100] This disclosure provides a vehicle that includes the aforementioned heat exchanger assembly, which can be installed in the vehicle's engine compartment. Each heat exchanger assembly exchanges heat with the fluid in its respective heat exchanger through blown air. The cooled fluid flows through various components of the vehicle, thereby regulating the temperature of the various components of the vehicle.

[0101] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A heat exchanger assembly, characterized by The heat exchanger assembly is applied to a target vehicle, and the heat exchanger assembly comprises a first heat exchanger (1), a second heat exchanger (2) and a third heat exchanger (3), the first heat exchanger (1) is a heat exchanger of an air conditioner and a battery, the second heat exchanger (2) is a heat exchanger of a motor assembly and an intercooling system, and the third heat exchanger (3) is a heat exchanger of engine coolant. The first heat exchanger (1), the second heat exchanger (2) and the third heat exchanger (3) are located in an engine compartment of the vehicle, are distributed in a first direction in the order of the first heat exchanger (1), the second heat exchanger (2) and the third heat exchanger (3), and are connected with the engine compartment, and the first direction is an air inlet direction of the engine compartment.

2. The heat exchanger assembly of claim 1, wherein, The heat exchanger assembly further comprises a first switchable ventilation channel (4), the first switchable ventilation channel (4) is arranged in a second direction with the first heat exchanger (1), the second direction is perpendicular to the first direction, the first switchable ventilation channel (4) is connected with the first heat exchanger (1) and the engine compartment respectively, and a ventilation direction of the first switchable ventilation channel (4) is the first direction.

3. The heat exchanger assembly of claim 2, wherein, The first switchable ventilation channel (4) is opposite to an air inlet grille of the engine compartment.

4. The heat exchanger assembly of claim 2, wherein, A size of the first switchable ventilation channel (4) and the first heat exchanger (1) in a plane perpendicular to the first direction is matched with the engine compartment.

5. The heat exchanger assembly of claim 2, wherein, The heat exchanger assembly further comprises a pressure sensor (5) and a controller (6). The pressure sensor (5) is located in the first heat exchanger (1) and connected with the first heat exchanger (1). The controller (6) is electrically connected with the pressure sensor (5) and the first switchable ventilation channel (4), and the controller (6) is configured to control the first switchable ventilation channel (4) to be opened when a pressure detected by the pressure sensor (5) is less than a pressure threshold value, and control the first switchable ventilation channel (4) to be closed when the pressure detected by the pressure sensor (5) is greater than or equal to the pressure threshold value.

6. The heat exchanger assembly of claim 2, wherein, There is a gap between the first heat exchanger (1) and the second heat exchanger (2), and there is a gap between the first switchable ventilation channel (4) and the second heat exchanger (2).

7. The heat exchanger assembly of claim 3, wherein, The heat exchanger assembly further comprises a plurality of first air guide vanes (7), the plurality of first air guide vanes (7) are located at an end of the first switchable ventilation channel (4) away from the air inlet grille and connected with the first switchable ventilation channel (4), and the plurality of first air guide vanes (7) are configured to perform divergent air guide.

8. The heat exchanger assembly of claim 7, wherein, The second direction is a vertical direction, the first switchable ventilation channel (4) is located below the first heat exchanger (1), an end of the plurality of first air guide vanes (7) close to the second heat exchanger (2) is higher than an end close to the first heat exchanger (1), and an angle of each first air guide vane (7) relative to the first direction is positively correlated with a height.

9. The heat exchanger assembly of claim 1, wherein, The second heat exchanger (2) and the third heat exchanger (3) are matched with the engine compartment in a size in a plane perpendicular to the first direction.

10. A vehicle characterized by comprising: The vehicle comprises a heat exchanger assembly as claimed in any of claims 1 to 9.

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