Heat absorption and release structure and refrigeration cycle device

Abstract

The invention provides a heat absorption and release structure and a refrigeration cycle device which can reduce the driving wind resistance of a vehicle and improve the design freedom degree of the front face of the vehicle under the condition that the heat exchange requirement is met. This heat absorption / release structure is provided with a heat absorption / release module (A) comprising: a heat exchanger (3, 4a, 4b) in which a heat medium exchanges heat with air; a first duct (9a) for guiding air outside the vehicle to the heat exchanger; the heat absorption and release structure further comprises a first air inlet (103) formed in the vehicle, and the fan enables air outside the vehicle to flow from the first air inlet to the heat exchanger through the first air channel. The first air inlet is opened upwards, downwards, laterally in the vehicle width direction or in the direction inclined relative to the up-down direction and the vehicle width direction.

Description

Technical Field

[0001] The present application relates to a heat absorption and release structure and a refrigeration cycle device for a vehicle. Background Art

[0002] The heat exchange between the vehicle thermal system and the natural environment is usually achieved by using a cooling module. In current vehicles, the cooling module is mostly placed at the front end of the front engine compartment of the vehicle, and absorbs and releases heat by taking in air from the front grille. In such a structure, the power source of the wind directed to the cooling module is the headwind brought by the vehicle speed, and a cooling fan (usually an axial flow fan) is configured. When the vehicle speed wind is insufficient, the cooling fan is used to assist the air intake.

[0003] From the perspective of vehicle energy consumption, the oncoming wind through the front grille can reduce the motor power consumption of the front cooling module. However, in the case of electric vehicles, the air intake from the front grille on the front side of the vehicle will increase the vehicle's drag coefficient, resulting in a deterioration in the power consumption required for vehicle driving, especially at high speeds. The impact of the vehicle's drag coefficient on the vehicle's driving power consumption is particularly significant.

[0004] Moreover, from the perspective of the front face styling of the vehicle, since the front grille needs to consider the functional requirements of the front air intake, the appearance design of the front face will also be restricted. Summary of the invention

[0005] The present application is made in view of the above situation, and its purpose is to provide a heat absorption and release structure and a refrigeration cycle device that can reduce the vehicle's running wind resistance while meeting the heat exchange requirements and increase the design freedom of the vehicle's front face.

[0006] In order to achieve the above-mentioned purpose, the heat absorption and release structure involved in the present application is equipped with a heat absorption and release module, which includes: a heat exchanger, in which heat medium and air are exchanged with each other; a first air duct, which is used to guide the air outside the vehicle to the heat exchanger; and a fan, the heat absorption and release structure also includes a first air inlet arranged on the vehicle, the fan causes the air outside the vehicle to flow from the first air inlet to the heat exchanger via the first air duct, and the first air inlet opens to the top, the bottom, the side in the vehicle width direction, or a direction inclined relative to the up and down direction and the vehicle width direction.

[0007] According to such a structure, the existing air intake layout of the front grille can be eliminated, and the air intake can be realized from the top, bottom or side of the vehicle, thereby reducing the influence of the front air intake on the vehicle's wind resistance coefficient and reducing the vehicle's driving power consumption. At the same time, the elimination of the front grille and its control can also reduce the number of parts, improve costs, and liberate the design freedom of the vehicle's front face shape. In addition, by designing the fan and heat exchanger into one module, the module is integrated, so the design is simple and space-saving.

[0008] In a possible embodiment, the heat absorption and release module is disposed between a front end of the vehicle and a cabin of the vehicle.

[0009] In a vehicle, components related to heat medium (refrigerant, etc.) are generally installed in the front engine compartment. Therefore, according to such a structure, the distance between the heat absorption and release module and other heat medium related components can be shortened, and the length of piping, etc. can be shortened.

[0010] In a possible embodiment, the first air inlet is arranged between the heat exchanger and the vehicle interior in the front-rear direction of the vehicle.

[0011] According to such a structure, the first air inlet can be positioned close to the external air inlet of the existing vehicle interior air conditioning box, thereby facilitating the first air duct and the existing vehicle interior air conditioning air duct to share the first air inlet.

[0012] In a possible embodiment, the first air inlet is configured so that the air flows in a vertical direction through the first air inlet, or the air enters the first air inlet from above.

[0013] According to such a structure, the influence of the front wind intake on the vehicle drag coefficient is minimized, thereby reducing the vehicle's running power consumption.

[0014] In a possible embodiment, the heat absorption and release module is arranged in front of an axle of a front wheel of the vehicle.

[0015] According to such a structure, the heat absorption and release module can be installed close to the front end of the vehicle, so that the heat absorption and release module does not occupy the installation position of equipment such as a motor, thereby improving the layout of the vehicle.

[0016] In a possible embodiment, the heat absorption and release module is arranged at the rear compared to the axle of the front wheels of the vehicle.

[0017] According to such a structure, the heat absorption and release module can be placed close to the external air inlet of the original vehicle interior air conditioning box, reducing the wind resistance caused by the air duct distance, and facilitating the first air duct and the original vehicle interior air conditioning air duct to share the first air inlet.

[0018] In a possible embodiment, the heat absorption and release module is disposed above a crossbeam of the vehicle.

[0019] According to such a structure, disassembly and assembly are convenient, and the heat absorption and release module can be removed from the top by only opening the engine hood and removing the engine compartment cover plate. Thus, the convenience of after-sales maintenance when the heat absorption and release module fails can be improved.

[0020] In a possible embodiment, the first air inlet is arranged at an inner wheel housing of a front wheel of the vehicle, or at a bottom of the vehicle.

[0021] According to such a configuration, even when there is no position available for opening at the top, the outside air can be introduced by arranging the first air inlet at the inner wheel housing or the bottom of the front wheel.

[0022] In a possible embodiment, the heat absorption and release module is disposed between the rear end of the vehicle and the cabin of the vehicle.

[0023] According to such a structure, when the front engine compartment needs to be equipped with other equipment and the space is small due to the different models of vehicles, the heat absorption and release module can be arranged between the rear end of the vehicle and the cabin, which can improve the freedom of equipment layout in the vehicle.

[0024] In a possible embodiment, the first air inlet is arranged at the inner wheel housing of the rear wheel of the vehicle, or at the bottom of the vehicle.

[0025] According to such a structure, the position of the first air inlet can be set in accordance with the position of the heat absorption and release module, and the freedom of layout can be improved.

[0026] In a possible embodiment, the heat medium is a heat medium that exchanges heat with a heat source of the vehicle.

[0027] According to such a structure, the heat of the heat source of the vehicle can be transferred to the air outside the vehicle by the heat exchanger, or the heat can be absorbed from the air by the heat exchanger to replenish the heat required by the heat source.

[0028] In a possible embodiment, the heat absorption and release module has at least two heat exchangers, and the at least two heat exchangers respectively use different heat media to perform heat exchange with air, and the at least two heat exchangers include a heat exchanger for the air conditioning system of the vehicle.

[0029] According to such a structure, the heat absorption and release module of the present application integrates a part of the air conditioning system (i.e., the heat exchanger in the air conditioning system that performs heat exchange with the air) in addition to the cooling module. Compared with the method of separately arranging the air conditioning system and the cooling module, the layout of the components in the cabin can be simplified, and the components that need to perform heat exchange with the outside air can be associated, so that, for example, the air conditioning system and the cooling module can use the same air inlet (first air inlet), thereby reducing the number of parts and simplifying the air duct design. It is also possible to flexibly configure the type and number of heat exchangers according to the heat absorption and release capacity and the system architecture.

[0030] In a possible embodiment, the heat absorption and release structure further includes a second air inlet (105) opening into the interior of the vehicle, and the heat absorption and release module further includes a second air duct (9b), one end of the second air duct being connected to the second air inlet and the other end being connected to the first air duct.

[0031] According to such a structure, the air in the vehicle interior can be used for heat exchange, heat energy can be recovered, the heating efficiency of the air conditioning system can be improved, and power consumption can be reduced.

[0032] In a possible embodiment, the heat exchanger is arranged in a manner such that a largest plane faces a direction of air entering from above the vehicle.

[0033] According to such a structure, condensed water on the surface of the heat exchanger can be discharged smoothly by gravity, the resistance of air flow can be reduced, the air volume can be increased, and the heat exchange efficiency can be improved.

[0034] In a possible embodiment, the heat exchanger includes at least two heat exchangers that use the same type of heat medium to perform heat exchange with air, the heat medium flows through the at least two heat exchangers in series, and the heat medium flows into the heat exchanger of the at least two heat exchangers that is far away from the first air duct, and flows out of the heat exchanger that is close to the first air duct.

[0035] According to such a structure, the heat exchange capacity can be improved by integrating multiple heat exchangers using the same type of heat medium in the module. In addition, in this case, by arranging the heat exchangers as above, the air can first pass through the heat exchanger with a relatively low temperature and then pass through the heat exchanger with a relatively high temperature, thereby improving the heat dissipation efficiency and maximizing the heat exchange capacity.

[0036] In a possible embodiment, the fan is a turbofan.

[0037] According to such a structure, a large air volume can be achieved while minimizing the volume.

[0038] In a possible embodiment, the heat absorption and release module further comprises: a heat exchanger housing, which is installed on the outer periphery of the heat exchanger; and a fan housing, which is located on the periphery of the fan.

[0039] According to such a structure, the casing can fix and protect the heat exchanger and the fan, and prevent air leakage.

[0040] The refrigeration cycle device involved in the present application comprises: a compressor that compresses and discharges a refrigerant; a radiator in which the refrigerant flows and releases the heat of the refrigerant; and an evaporator in which the refrigerant flows and evaporates the refrigerant. The radiator or the evaporator is included in the above-mentioned heat absorption and release structure as a heat exchanger.

[0041] According to such a structure, the radiator or evaporator in the air-conditioning system can be integrated into the heat absorption and release module and modularized. Therefore, the design is simple and space can be saved. Compared with the method of separately arranging the air-conditioning system and the cooling module, the layout of the components in the front engine compartment can be simplified, and the components that need to exchange heat with the outside air can be associated, so that, for example, the air-conditioning system and the cooling module can use the same air inlet (first air inlet), thereby reducing the number of parts and simplifying the air duct design. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram for explaining the heat absorption and release structure of the first embodiment.

[0043] Figure 2 It is an exploded perspective view for explaining the structure of the heat absorption and release module according to the first embodiment.

[0044] Figure 3 It is a schematic diagram for explaining the heat absorption and release structure of the second embodiment.

[0045] Figure 4 It is a diagram for explaining the operation mode of the heat absorption and release structure of the second embodiment.

[0046] Figure 5 It is a schematic diagram for explaining the heat absorption and release structure of the third embodiment.

[0047] Figure 6 It is a schematic diagram for explaining the heat absorption and release structure of the fourth embodiment.

[0048] Explanation of symbols

[0049] A Heat absorption and release module

[0050] 1 Motor

[0051] 2 Fan

[0052] 3 Coolant-air heat exchanger

[0053] 4a First refrigerant air heat exchanger

[0054] 4b Second refrigerant air heat exchanger

[0055] 5 Motor fixing housing

[0056] 6 Fan housing

[0057] 7 First heat exchanger shell

[0058] 8 Second heat exchanger shell

[0059] 9a First Air Channel

[0060] 9b Second air duct

[0061] 103 First air inlet

[0062] 105 Second air inlet. DETAILED DESCRIPTION

[0063] Hereinafter, preferred embodiments of the present application will be described with reference to the accompanying drawings. In addition, in the following embodiments, the same or equivalent parts are marked with the same symbols in the drawings.

[0064] (First Embodiment)

[0065] use Figure 1 , 2 The heat absorption and release structure of the first embodiment will be described. Figure 1 The front half of the vehicle is schematically shown, wherein the front firewall 106 is used to separate the front engine compartment from the vehicle cabin. Figure 1 As shown, the heat absorption and release structure of this embodiment includes a heat absorption and release module A arranged in the front engine compartment. Specifically, the heat absorption and release module A is arranged between the front end of the vehicle and the vehicle compartment. Here, the front end of the vehicle refers to the frontmost side in the front-to-back direction of the vehicle, that is, the front part of the vehicle ( Figure 1 Specifically, the heat absorption and release module A is arranged in front of the axle of the front wheel and is arranged above the cross beam 104.

[0066] like Figure 1 , 2 As shown, the heat absorption and release module A includes: a motor 1, a fan 2, a coolant-air heat exchanger 3, a first refrigerant-air heat exchanger 4a, a second refrigerant-air heat exchanger 4b, a motor fixing housing 5, a fan housing 6, a first heat exchanger housing 7, a second heat exchanger housing 8 and a first air duct 9a.

[0067] The motor 1 is located on the side of the motor fixing housing 5 opposite to the fan 2 and is fixed to the motor fixing housing 5. The output shaft of the motor 1 passes through the motor fixing housing 5 and is connected to the fan 2, so that the fan 2 can be driven. The fan housing 6 and the motor fixing housing 5 are connected to form a space for accommodating the fan 2. The fan housing 6 is located at the periphery of the fan 2. In this embodiment, the fan 2 is a turbo fan.

[0068] In addition, the coolant-air heat exchanger 3, the first refrigerant-air heat exchanger 4a, and the second refrigerant-air heat exchanger 4b are each formed in a flat substantially rectangular parallelepiped shape, and each has substantially the same shape in a plan view (in this embodiment, as shown in FIG. Figure 2 The coolant-to-air heat exchanger 3, the second refrigerant-to-air heat exchanger 4b, and the first refrigerant-to-air heat exchanger 4a are sequentially stacked in the up-down direction.

[0069] like Figure 2 As shown, ports 31 and 32 for coolant inflow and outflow are respectively provided on two opposite sides of the coolant-air heat exchanger 3. In addition, although not shown, the refrigerant flow paths in the first refrigerant-air heat exchanger 4a and the second refrigerant-air heat exchanger 4b are connected to each other, and the first refrigerant-air heat exchanger 4a is provided with a refrigerant inflow port, and the second refrigerant-air heat exchanger 4b is provided with a refrigerant outflow port, and the refrigerant flows into the first refrigerant-air heat exchanger 4a from the inflow port of the first refrigerant-air heat exchanger 4a, and flows out from the second refrigerant-air heat exchanger 4b. In addition, in the following description, the coolant-air heat exchanger 3, the first refrigerant-air heat exchanger 4a, and the second refrigerant-air heat exchanger 4b are also collectively referred to as heat exchangers without distinction.

[0070] The heat exchanger performs heat exchange between the heat generated by the heat source of the vehicle and the air outside the vehicle. Specifically, a heat medium such as a coolant or a refrigerant performs heat exchange with the heat source of the vehicle and then flows into the heat exchanger, and performs heat exchange with the air outside the vehicle in the heat exchanger, whereby the heat exchanger performs heat exchange between the heat generated by the heat source and the air via the heat medium. In this embodiment, the heat source may be a refrigeration cycle device such as the air-conditioning system of the vehicle, an electric drive system, a battery, and other electronic components. When the heat exchanger is connected to a battery, an electric drive system, etc., the heat medium can be used to cool the battery and the electric drive system. When the heat exchanger is connected to the air-conditioning system, the heat exchanger can function as a component that transfers the heat of the air-conditioning system to the air outside the vehicle in cooling mode, and can also function as a component that absorbs heat from the air outside the vehicle for use by the air-conditioning system in heating mode. In the case of cooling mode, for example, the first refrigerant-air heat exchanger 4a and / or the second refrigerant-air heat exchanger 4b is used as a radiator for releasing heat from the refrigerant, and in the case of heating mode, for example, the first refrigerant-air heat exchanger 4a and / or the second refrigerant-air heat exchanger 4b is used as an evaporator for absorbing heat from the refrigerant. The operation of the heat exchanger will be described in detail later.

[0071] The heat exchanger is arranged on the side of the fan 2 opposite to the motor 1. The first heat exchanger housing 7, the heat exchanger, and the second heat exchanger housing 8 are arranged in sequence in the horizontal direction, and the first heat exchanger housing 7 and the second heat exchanger housing 8 are installed on the outer periphery of the heat exchanger. A plurality of support portions corresponding to the shapes of the coolant air heat exchanger 3, the first refrigerant air heat exchanger 4a, and the second refrigerant air heat exchanger 4b are respectively arranged on the side of the first heat exchanger housing 7 and the second heat exchanger housing 8 facing the heat exchanger, and openings are provided for the ports 31, 32 and the inlet and outlet ports of the above-mentioned refrigerant to pass through.

[0072] The first heat exchanger housing 7, the second heat exchanger housing 8, the fan housing 6 and the motor fixing housing 5 are connected to each other to form Figure 1 The main part of the heat absorption and release module A shown in FIG. Figure 1 , 2 As shown, the heat absorption and release module A is arranged so that the heat exchanger is located above the fan 2 .

[0073] like Figure 1As shown, the first air duct 9a is arranged on the side of the heat exchanger opposite to the fan 2. In addition, although not shown in the figure, in a top view, the outlet of the first air duct 9a covers the largest plane of the heat exchanger. The heat absorption and release structure of this embodiment also includes a first air inlet 103 arranged on the vehicle, the first air inlet 103 is open to the top and is connected to the first air duct 9a, so that when the fan 2 is working, the air outside the vehicle flows from the first air inlet 103 to the heat exchanger through the first air duct 9a, thereby exchanging heat with the heat medium in the heat exchanger, and then flows out from the heat absorption and release module A.

[0074] The first air inlet 103 is disposed between the heat exchanger and the vehicle interior in the front-rear direction of the vehicle. For example, the first air inlet 103 is disposed on the vehicle surface behind the hood 101 and below the windshield.

[0075] In addition, the first air inlet 103 is configured so that the flow direction of the air passing through the first air inlet 103 is in the vertical direction. Here, "the flow direction of the air is in the vertical direction" means that when the fan 2 is working and the air outside the vehicle flows toward the first air inlet 103, the flow direction of the air when it just enters the first air inlet 103 is in the vertical direction. For example, this can be achieved by setting the first air inlet 103 on a surface parallel to the chassis of the vehicle. Alternatively, the first air inlet 103 is configured so that no matter whether the first air inlet 103 is set on a surface parallel to the chassis of the vehicle, as long as the air enters the first air inlet 103 from above. The air then passes through Figure 1 The first air duct 9a arranged to extend horizontally in this manner blows toward the heat exchanger.

[0076] In addition, in this embodiment, the heat exchanger is arranged in such a manner that the largest plane faces the direction of the air entering from above the vehicle. As described above, the first air duct 9a is provided above the heat exchanger, so that air is blown toward the heat exchanger from above via the first air duct 9a. In this case, the coolant-air heat exchanger 3, the first refrigerant-air heat exchanger 4a, and the second refrigerant-air heat exchanger 4b, which are flat and substantially rectangular in shape, are arranged in a manner that the first refrigerant-air heat exchanger 4a and the second refrigerant-air heat exchanger 4b ... Figure 2 As shown in the figure, the largest plane is arranged upward (the largest plane is parallel to the chassis of the vehicle). As a result, the condensed water on the surface of the heat exchanger can be discharged smoothly by gravity. The resistance of the air flow can be reduced, the air volume can be increased, and the heat exchange efficiency can be improved.

[0077] Hereinafter, the effects of this embodiment will be described.

[0078] As described above, the heat absorption and release structure of this embodiment has a heat absorption and release module A and a first air inlet 103. The heat absorption and release module A includes a heat exchanger, a first air duct 9a and a fan 2. The first air inlet 103 opens upward. Therefore, the air outside the vehicle enters from the first air inlet 103 as an air inlet, is introduced into the heat exchanger through the first air duct 9a, and is discharged to the outside of the vehicle after heat exchange in the heat exchanger. In this way, it is possible to get rid of the existing air intake layout of the front grille and change it to intake from the top, thereby reducing the impact of the front air intake on the vehicle's wind resistance coefficient and reducing the vehicle's driving power consumption. At the same time, after eliminating the front grille and its control, the number of parts can be reduced, the cost can be improved, and the design freedom of the front face shape of the vehicle can be liberated. In addition, this embodiment designs the heat exchanger and the fan 2 into a module, realizes module integration, and thus has a simple design and can save space.

[0079] In a possible embodiment, the heat absorption and release module A is arranged between the front end of the vehicle and the vehicle cabin. In a vehicle, components related to heat medium (refrigerant, etc.) are generally arranged in the front engine compartment. Therefore, by such an arrangement, the distance between the heat absorption and release module A and other heat medium related components can be shortened, thereby shortening the piping length, etc.

[0080] In a possible embodiment, the first air inlet 103 is arranged between the heat exchanger and the vehicle cabin in the front-to-rear direction of the vehicle. Through such an arrangement, the following two layouts can be achieved. In the first layout, the first air inlet 103 is close to the position of the original air inlet of the air-conditioning box of the vehicle. The first air inlet 103 supplies air to flow to the first air duct 9a. The air inlet of the air-conditioning box supplies air to flow to the air-conditioning box air duct. The first air duct 9a and the air to the air-conditioning box air duct are not connected to each other and do not interfere with each other. In the second layout, the first air inlet 103 directly uses the original air inlet of the air-conditioning box of the vehicle. In this case, the air inlet of the air-conditioning box can be slightly enlarged. As a result, the first air duct 9a and the air-conditioning box air duct can share the same air inlet (first air inlet 103), thereby simplifying the air duct structure.

[0081] In a possible embodiment, the first air inlet 103 is configured such that the air flows vertically through the first air inlet 103, or the air enters the first air inlet 103 from above. Therefore, the influence of the front air intake on the vehicle drag coefficient is minimized, and the vehicle driving power consumption is reduced.

[0082] In a possible embodiment, the heat absorption and release module A is arranged in front of the axle of the front wheel of the vehicle. Therefore, the heat absorption and release module A can be arranged close to the front end of the vehicle, so that the heat absorption and release module A does not occupy the setting position of equipment such as a motor, thereby improving the layout of the vehicle.

[0083] In a possible embodiment, the heat absorption and release module A is disposed above the crossbeam 104. Alternatively, the heat absorption and release module A is disposed below the engine compartment cover 102, and no other components exist between the heat absorption and release module A and the engine compartment cover 102. Alternatively, the heat absorption and release module A is disposed above the crossbeam 104 and below the engine compartment cover 102, and no other components exist between the heat absorption and release module A and the engine compartment cover 102. Therefore, disassembly and assembly are convenient, such as Figure 1 As shown, the heat absorption and release module A can be removed from the top by only opening the engine hood 101 and removing the engine compartment cover 102. Thus, the convenience of after-sales maintenance when the heat absorption and release module A fails can be improved.

[0084] In a possible embodiment, the heat absorption and release module has at least two heat exchangers, and the at least two heat exchangers use different heat media to perform heat exchange with air, and the at least two heat exchangers include a heat exchanger for the vehicle's air conditioning system. For example, the heat absorption and release module A has a coolant-air heat exchanger 3 that uses coolant as a heat medium, and a first refrigerant-air heat exchanger 4a and a second refrigerant-air heat exchanger 4b that use refrigerant as a heat medium. For example, the coolant-air heat exchanger 3 can be used as a heat exchanger for cooling batteries, electric drive systems, etc., and the first refrigerant-air heat exchanger 4a and the second refrigerant-air heat exchanger 4b can be used as heat exchangers used in the vehicle's air conditioning system (for example, the above-mentioned radiator, evaporator). In this way, the cooling module and air conditioning system in the vehicle can be modularized and integrated into the heat absorption and release module A, that is, the heat absorption and release module A of this embodiment integrates a part of the air conditioning system (heat exchanger) in addition to the cooling module. Compared with the method of separately arranging the air conditioning system and the cooling module, the layout of the components in the front engine compartment can be simplified, and the components that need to exchange heat with the outside air can be associated, so that, for example, the air conditioning system and the cooling module can use the same air inlet (first air inlet 103), thereby reducing the number of parts and simplifying the air duct design. It is also possible to flexibly configure the type and number of heat exchangers according to the heat absorption and release capacity and the system architecture.

[0085] In a possible embodiment, the heat exchanger includes at least two heat exchangers that use the same type of heat medium to perform heat exchange with air, the heat medium flows through the at least two heat exchangers in series, and the heat medium flows into the heat exchanger far from the first air duct among the at least two heat exchangers, and flows out from the heat exchanger close to the first air duct. For example, the coolant-air heat exchanger 3, the second refrigerant-air heat exchanger 4b and the first refrigerant-air heat exchanger 4a are stacked in sequence in the up-down direction. Usually, the temperature of the coolant is lower than the temperature of the refrigerant. Therefore, the coolant-air heat exchanger 3 is arranged on the upstream side (in this embodiment, the upper side) in the air flow direction, and the first refrigerant-air heat exchanger 4a and the second refrigerant-air heat exchanger 4b are arranged on the downstream side (in this embodiment, the lower side) in the air flow direction, so that the heat exchange with the relatively low temperature outside the vehicle can be fully performed to make the heat dissipation efficiency higher.

[0086] The same is true for the first refrigerant air heat exchanger 4a and the second refrigerant air heat exchanger 4b. Since the refrigerant flow paths in the first refrigerant air heat exchanger 4a and the second refrigerant air heat exchanger 4b are connected, the temperature of the first refrigerant air heat exchanger 4a is higher than the temperature of the second refrigerant air heat exchanger 4b during heat dissipation. In this embodiment, the second refrigerant air heat exchanger 4b is arranged on the upstream side in the air flow direction, and the first refrigerant air heat exchanger 4a is arranged on the downstream side in the air flow direction. Thus, the air sucked from the outside first passes through the second refrigerant air heat exchanger 4b with a relatively low temperature, and then passes through the first refrigerant air heat exchanger 4a with a relatively high temperature, thereby improving the heat dissipation efficiency.

[0087] In a possible embodiment, the heat exchanger is arranged in a manner that the largest plane faces the direction of the air entering from above the vehicle. Thus, condensed water on the surface of the heat exchanger can be discharged smoothly by gravity. The resistance of the air flow can be reduced, the air volume can be increased, and the heat exchange efficiency can be improved.

[0088] In a possible embodiment, the fan 2 is a turbo fan, so that a large air volume can be achieved and the volume can be reduced as much as possible.

[0089] In a possible embodiment, the heat absorption and release module A further includes a fan housing 6, a first heat exchanger housing 7, and a second heat exchanger housing 8. Therefore, these housings can be used to fix and protect the heat exchanger and the fan, and can prevent air leakage from between the coolant-air heat exchanger 3, the first refrigerant-air heat exchanger 4a, and the second refrigerant-air heat exchanger 4b.

[0090] (Second Embodiment)

[0091] Reference Figure 3 ,4 , a second embodiment is described. In this embodiment, the points different from the first embodiment described above are mainly described. In addition, the same or equivalent parts as the above embodiment are omitted or simplified for description. This is also the same in the description of the embodiments described later.

[0092] like Figure 3 As shown, the heat absorption and release structure of the second embodiment also includes a second air inlet 105 opening into the vehicle interior, the second air inlet 105 is connected to the front firewall 106, and the heat absorption and release module A also includes a second air duct 9b, one end of the second air duct 9b is connected to the second air inlet 105, and the other end is connected to the first air duct 9a. In this way, in addition to the air outside the vehicle, the heat absorption and release module A can also inhale the air inside the vehicle interior. The air inside the vehicle interior enters the second air duct 9b through the second air inlet 105, and is thereby introduced into the heat exchanger by the second air duct 9b, and is discharged to the outside of the vehicle after heat exchange at the heat exchanger. In this way, at the heat exchanger, the heat medium in the heat exchanger can achieve heat exchange with the air inside the vehicle. In addition, grilles or dampers that are independently controlled are respectively provided at the first air inlet 103 and the second air inlet 105, so that the opening and closing of the two air inlets can be independently controlled.

[0093] Reference Figure 4 , the operation of the heat absorption and release module A of the second embodiment is described. Figure 4 The heat absorption and release module A of this embodiment can be switched between an outside air heat absorption and release mode, an inside air heat absorption mode, and an inside and outside air heat absorption mode.

[0094] Figure 4 (a) is a schematic diagram showing the heat absorption and release module A in the outside air heat absorption and release mode. The outside air heat absorption and release mode is usually used in summer conditions, or when the temperature is not particularly low in winter and there is no ventilation heat source in the car (for example, when the air conditioner has just been turned on and the car has not been heated yet).

[0095] like Figure 4 As shown in (a), in the external air intake and heat release mode, the first air inlet 103 is opened and the second air inlet 105 is closed. At this time, when the motor 1 drives the fan 2 to rotate and blow air, the external air is as follows Figure 4As shown by the arrow in (a), it enters from the first air inlet 103 and flows through the first air duct 9a toward the heat exchanger, thereby exchanging heat with the heat medium in the heat exchanger. In summer conditions, the temperature on the air side is relatively low, and the temperatures of the coolant medium and the refrigerant medium are relatively high. Therefore, the gas outside the vehicle can be used to cool the heat medium. The coolant medium and the refrigerant medium release heat. Therefore, the battery and the electric drive system can be cooled or the vehicle interior can be cooled via the heat medium. In winter conditions, if there is only one heat medium, the heat medium absorbs heat from the air side to heat the vehicle interior. If there are two heat media, coolant and refrigerant, and the coolant is connected to heat-generating components such as motors, when heat can be provided, the refrigerant medium can absorb heat from both the coolant and the air to heat the vehicle interior.

[0096] In addition, when the second air inlet 105 and the second air duct 9b are not provided as in the first embodiment, only the outside air intake and heat release mode can be used.

[0097] In addition, in winter, in order to prevent fogging, the air conditioning system usually introduces dry fresh air from the outside and blows it into the vehicle interior after heating. At this time, the air pressure in the vehicle interior rises, and in order to stabilize the air pressure, the gas in the vehicle interior needs to be discharged from the rear ventilation port. However, after the air conditioner has been heating the vehicle interior for a period of time, the temperature tends to be stable and is higher than the temperature outside the vehicle, so continuing to discharge the gas in the vehicle interior to the outside will cause heat loss. In this case, by adopting the indoor air heat absorption mode or the indoor and outdoor air joint heat absorption mode to introduce the gas in the vehicle interior from the second air inlet 105 to the heat absorption and release module A, the heat of the gas that originally needed to be discharged to the rear ventilation port can be recovered.

[0098] Figure 4 (b) is a schematic diagram showing the heat absorption and release module A in the interior air heat absorption mode. The interior air heat absorption mode is usually used in winter when the temperature is extremely low and heat cannot be absorbed from the outside air, and when there is a ventilation heat source in the vehicle interior (for example, when the vehicle interior has been heated by air conditioning).

[0099] like Figure 4 As shown in (b), in the interior air heat absorption mode, the first air inlet 103 is closed and the second air inlet 105 is opened. At this time, when the motor 1 drives the fan 2 to rotate and blow air, the air in the vehicle interior is as follows: Figure 4 As shown by the arrow in (b), the air enters from the second air inlet 105 and sequentially passes through the second air duct 9b and the first air duct 9a to flow toward the heat exchanger, thereby exchanging heat with the heat medium in the heat exchanger. Thus, by introducing the gas into the vehicle interior from the second air inlet 105, the air pressure in the vehicle interior can be stabilized when heating the vehicle interior, and the heat of the gas discharged to stabilize the air pressure can be recovered to reduce heat loss.

[0100] Figure 4 (c) is a schematic diagram showing the heat absorption and release module A in the indoor and outdoor air combined heat absorption mode. This indoor and outdoor air combined heat absorption mode is usually used when the temperature is not particularly low in winter and there is a ventilation heat source in the vehicle interior (for example, when the vehicle interior has been heated by the air conditioner).

[0101] like Figure 4 As shown in (c), in the heat absorption mode of both internal and external air, the first air inlet 103 and the second air inlet 105 are opened. At this time, when the motor 1 drives the fan 2 to rotate and blow air, as shown in FIG. Figure 4 As shown by the arrow in (c), the air outside the vehicle enters from the first air inlet 103, and the air inside the vehicle enters from the second air inlet 105. The two are mixed in the first air duct 9a and flow toward the heat exchanger, thereby exchanging heat with the heat medium in the heat exchanger. In this way, in addition to the air inside the vehicle, the air outside the vehicle whose temperature is not particularly low can also absorb heat for use by the heat exchanger, thereby reducing the heat absorbed from the air circulating inside the vehicle, and thus further reducing the heat loss of the air inside the vehicle.

[0102] As described above, according to the heat absorption and release structure of the second embodiment, in addition to the first air inlet 103 and the first air duct 9a, the second air inlet 105 and the second air duct 9b for introducing air into the vehicle interior are provided, so that in addition to heat exchange with the outside air, heat recovery of the air in the vehicle interior can be performed. Thus, the efficiency of the air conditioning system can be improved by ventilation in the vehicle interior, and power consumption can be reduced.

[0103] (Third Embodiment)

[0104] Reference Figure 5 , a third embodiment is described.

[0105] Figure 5 1 is a plan view schematically showing the front part of the vehicle, wherein the left side shows the front of the vehicle.

[0106] like Figure 5 As shown in the figure, the first air inlet 103 can also be arranged on the side of the vehicle in the vehicle width direction, such as the side of the vehicle shell. In addition, although not shown in detail in the figure, the first air inlet 103 can be arranged near the front wheel, for example, at the inner wheel cover of the front wheel. In this case, the position of the heat exchanger and the second air inlet 105 relative to the front firewall 106 can be adjusted accordingly. In addition, the second air duct 9b can also be as shown in the figure. Figure 5 As shown, it is not connected to the first air duct 9a, but is directly connected to the heat exchanger.

[0107] According to this embodiment, for example, when the first air inlet 103 cannot be arranged at the position shown in the first embodiment due to different vehicle models, the first air inlet 103 can also be arranged on the side of the vehicle. In such a case, the same effect as the above embodiment can be obtained.

[0108] (Fourth Embodiment)

[0109] Reference Figure 6 , a fourth embodiment is described.

[0110] Figure 6 It is a schematic diagram for explaining the heat absorption and release structure of the fourth embodiment, and schematically shows the rear side portion of a vehicle.

[0111] like Figure 6 As shown, unlike the first to third embodiments described above, the heat absorption and release module of the fourth embodiment is disposed below the trunk 107 of the vehicle, and the heat absorption and release module A is configured in such a manner that the heat exchanger is located below the fan 2. In addition, the first air inlet 103 is disposed near the rear wheel or at the bottom of the vehicle, such as at the inner wheel housing of the rear wheel, or on the chassis around the rear wheel, and the second air inlet 105 is connected to the rear firewall 108.

[0112] According to this embodiment, when the heat absorption and release module A cannot be installed in the front engine compartment due to vehicle model requirements, the heat absorption and release module A can also be installed between the rear end of the vehicle and the vehicle cabin, for example, below the trunk 107. Here, the rear end of the vehicle refers to the rearmost side of the vehicle in the front-to-rear direction, that is, the rear part of the vehicle ( Figure 6 In this case, the same effects as those of the above-described embodiment can be obtained, and the freedom of layout of the equipment in the vehicle can be improved.

[0113] (Other embodiments)

[0114] The present application is not limited to the above-mentioned embodiments, but can also be implemented in the following manners.

[0115] The first air inlet 103 is not limited to the above-mentioned embodiments, but can be appropriately changed. For example, the first air inlet 103 can be opened upward, downward, to the side in the vehicle width direction, or in a direction inclined relative to the up-down direction and the vehicle width direction. For example, in the above-mentioned first to third embodiments, the first air inlet 103 can also be arranged at the bottom of the vehicle, and in the above-mentioned fourth embodiment, the first air inlet 103 can also be arranged at the side of the vehicle. In this case, the first air duct 9a can be changed accordingly.

[0116] In addition, in the first embodiment, the flow direction of the air through the first air inlet 103 is a vertical direction, that is, the first air inlet 103 is vertically facing upward. However, the first air inlet 103 is not limited thereto, and the first air inlet may also be opened at an angle. For example, this can be achieved by arranging the first air inlet on a surface that is inclined upward relative to the chassis of the vehicle.

[0117] In the first embodiment, the heat exchanger is arranged so that the largest plane faces the direction of the air entering from above the vehicle, but the present invention is not limited thereto and the heat exchanger may be arranged so that the largest plane is inclined or perpendicular to the horizontal direction.

[0118] In the first embodiment, the heat absorption and release module A is disposed in front of the axle of the front wheel and above the cross member 104, but the present invention is not limited thereto. The heat absorption and release module A may be disposed at any position in the front engine compartment.

[0119] For example, in a possible implementation, the heat absorption and release module A is arranged at the rear of the axle of the front wheel of the vehicle. According to such a structure, the heat absorption and release module A and the external air inlet of the existing vehicle interior air conditioning box can be placed close to each other, thereby reducing the wind resistance caused by the air duct distance and facilitating the first air duct 9a and the existing vehicle interior air conditioning air duct to share the first air inlet 103.

[0120] In the above embodiment, the heat absorption and release module A is equipped with a coolant-air heat exchanger 3, a first refrigerant-air heat exchanger 4a and a second refrigerant-air heat exchanger 4b, but is not limited thereto. In a possible embodiment, the present application does not limit the type and quantity of heat exchangers included in the provided heat absorption and release module. When the refrigerant heat dissipation capacity is not required to be large, the heat absorption and release module A may also only have a first refrigerant-air heat exchanger 4a without a second refrigerant-air heat exchanger 4b. In addition, the heat absorption and release module A may also have more than two coolant-air heat exchangers, or the heat absorption and release module A may also have more than three refrigerant-air heat exchangers. In this case, for a heat exchanger including at least two heat exchangers that use the same type of heat medium to exchange heat with air, the heat medium flows in series through the at least two heat exchangers, and the heat medium flows into the heat exchanger away from the first air duct 9a of the at least two heat exchangers, and flows out from the heat exchanger close to the first air duct 9a.

[0121] In addition, when at least two heat exchangers are provided for performing heat exchange between the air and the heat medium using the same type of heat medium, the heat medium may flow into and out of each heat exchanger individually.

[0122] In the above embodiment, the fan 2 is a turbo fan, but the invention is not limited thereto and the fan 2 may also be other types of fans.

[0123] The structure of each embodiment is not limited to an electric vehicle, but can also be applied to a hybrid vehicle or a plug-in hybrid vehicle.

[0124] The present application is not limited to the above-mentioned specific examples. Examples in which the above-mentioned specific examples are appropriately changed by those skilled in the art are included in the scope of the present application as long as they have the characteristics of the present application. The various elements, configurations, conditions, shapes, etc. of the above-mentioned specific examples are not limited to the exemplified contents and can be appropriately changed. The various elements of the above-mentioned specific examples can be appropriately changed in combination as long as no technical contradictions are generated.

Claims

1. A heat absorption and release structure, characterized in that: Equipped with heat absorption and release module, The heat absorption and release module includes: A heat exchanger, in which heat medium and air are exchanged with each other; a first air duct for guiding air outside the vehicle to the heat exchanger; and fan, The heat absorption and release structure further includes a first air inlet provided on the vehicle, and the fan causes air outside the vehicle to flow from the first air inlet to the heat exchanger via the first air duct. The first air inlet opens upward, downward, laterally in the vehicle width direction, or in a direction inclined with respect to the up-down direction and the vehicle width direction.

2. The heat absorption and release structure according to claim 1, characterized in that: The heat absorption and release module is disposed between a front end of the vehicle and a cabin of the vehicle.

3. The heat absorption and release structure according to claim 2, characterized in that: The first air inlet is arranged between the heat exchanger and the vehicle interior in the front-rear direction of the vehicle.

4. The heat absorption and release structure according to claim 3, characterized in that: The first air inlet is configured such that the flow direction of air passing through the first air inlet is a vertical direction, or the air enters the first air inlet from above.

5. The heat absorption and release structure according to claim 1 or 2, characterized in that: The heat absorption and release module is disposed in front of an axle of a front wheel of the vehicle.

6. The heat absorption and release structure according to claim 1 or 2, characterized in that: The heat absorption and release module is arranged above the cross beam of the vehicle.

7. The heat absorption and release structure according to claim 1 or 2, characterized in that: The first air inlet is arranged at an inner wheel housing of a front wheel of the vehicle or at a bottom of the vehicle.

8. The heat absorption and release structure according to claim 1, characterized in that: The heat absorption and release module is disposed between a rear end of the vehicle and a cabin of the vehicle.

9. The heat absorption and release structure according to claim 1 or 8, characterized in that: The first air inlet is arranged at an inner wheel housing of a rear wheel of the vehicle or at a bottom of the vehicle.

10. The heat absorption and release structure according to claim 1, characterized in that: The heat medium is a heat medium that exchanges heat with a heat source of the vehicle.

11. The heat absorption and release structure according to claim 1, characterized in that: The heat absorption and release module has at least two heat exchangers, and the at least two heat exchangers use different heat media to perform heat exchange with air. The at least two heat exchangers include a heat exchanger for an air conditioning system of the vehicle.

12. The heat absorption and release structure according to claim 1, characterized in that: The heat absorption and release structure further includes a second air inlet opening toward the interior of the vehicle. The heat absorption and release module further includes a second air duct, one end of which is connected to the second air inlet and the other end of which is connected to the first air duct.

13. The heat absorption and release structure according to claim 4, characterized in that: The heat exchanger is arranged so that the largest plane faces the direction of air entering from above the vehicle.

14. The heat absorption and release structure according to any one of claims 1 to 4, characterized in that: The heat exchanger includes at least two heat exchangers that use the same type of heat medium to perform heat exchange with air. The heat medium flows through the at least two heat exchangers in series, and the heat medium flows in from the heat exchanger far from the first air duct among the at least two heat exchangers, and flows out from the heat exchanger close to the first air duct.

15. The heat absorption and release structure according to any one of claims 1 to 4, characterized in that: The fan is a turbo fan.

16. The heat absorption and release structure according to any one of claims 1 to 4, characterized in that: The heat absorption and release module also has: a heat exchanger housing mounted on an outer periphery of the heat exchanger; and A fan housing is located at the periphery of the fan.

17. A refrigeration cycle device, characterized in that: have: A compressor, which compresses and discharges the refrigerant; a radiator in which the refrigerant flows and which releases heat of the refrigerant; and an evaporator in which the refrigerant flows and the evaporator evaporates the refrigerant, The radiator or the evaporator is included in the heat absorption and release structure according to any one of claims 1 to 16 as a heat exchanger.

Images