Cooling device and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to a cooling device and a vehicle. The cooling device provided by the invention comprises a cooling assembly and a motor assembly which are arranged at an interval; the motor assembly comprises a windward side facing the cooling assembly; a flow guide part is arranged between the cooling assembly and the motor assembly, and the flow guide part has an avoiding state for avoiding the windward side and a shielding state for shielding the windward side; and in the flow direction of airflow, the flow guide component is switched between the avoiding state and the shielding state. According to the embodiment of the invention, the flow direction of the air flow is changed through the flow guide part, the front cabin inlet air can be guided in the avoiding state, the flow guide heat dissipation of the motor and the speed reducer can be realized, the convection heat dissipation of the motor assembly can be improved, and when the shielding state is the temperature state, the heat of the motor assembly can be preserved, and the heat dissipation loss of the motor and the speed reducer can be reduced; the high-low temperature environment adaptability of pure electric and hybrid vehicles is improved, and the endurance mileage is increased.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and in particular to a cooling device and a vehicle. Background Art

[0002] For high-temperature working conditions, it is usually necessary to guide the air intake of the front cabin to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect. Usually, a guide plate needs to be installed in the front cabin. Since traditional guide plates cannot change the direction of the guide, in low-temperature environments, the greater the air volume, the stronger the cooling and heat dissipation, the lower the temperature of the motor and reducer, and the power transmission efficiency will be reduced, which is very unfavorable for the low-temperature endurance of the entire vehicle. Summary of the invention

[0003] In order to solve the above technical problems, the present disclosure provides a cooling device and a vehicle.

[0004] The present disclosure provides a cooling device, comprising: a cooling assembly and a motor assembly arranged at intervals;

[0005] The motor assembly includes a windward side facing the cooling assembly;

[0006] A flow guide component is provided between the cooling assembly and the motor assembly, and the flow guide component includes a avoiding state for avoiding the windward surface and a shielding state for shielding the windward surface;

[0007] Along the flow direction of the airflow, the air guide component switches between the avoidance state and the shielding state.

[0008] Furthermore, the flow guide component includes a curved portion made of a shape memory alloy material; the ambient temperature T is proportional to the curvature ρ of the curved portion.

[0009] Furthermore, when the flow guide component is in the shielding state, the flow guide component is in a flat plate shape;

[0010] And / or, when the flow guide component is in the avoidance state, the flow guide component is curved.

[0011] Furthermore, when the guide component is in the avoidance state, two sides of the guide component include a first curved surface and a second curved surface, the first curved surface and the second curved surface are both smooth surfaces, and the first curved surface and the second curved surface have the same bending direction.

[0012] Furthermore, when the guide component is in the shielding state, the top of the guide component is flush with the top of the motor assembly, and the bottom of the guide component is flush with the bottom of the motor assembly.

[0013] Furthermore, the flow guide component includes a connecting portion, and the connecting portion is installed on a mounting seat.

[0014] Furthermore, in the avoidance state, one end of the guide component away from the mounting seat is bent in a direction away from the motor assembly and toward the mounting seat.

[0015] Furthermore, in the avoidance state, the end of the flow guide component away from the mounting seat is bent toward a side close to the cooling assembly.

[0016] Furthermore, when the guide component is in the shielding state, an angle between the guide component and the plane where the mounting seat is located is less than 90°.

[0017] Furthermore, when the flow guide component is in the shielding state, the top of the flow guide component abuts against the motor assembly.

[0018] Further, it also includes a driving member;

[0019] The connecting portion is rotatably connected to the mounting seat, and the driving member is connected to the flow guide component, and is used to drive the flow guide component to swing so that the flow guide component switches between the shielding state and the avoidance state.

[0020] A second aspect of the present disclosure provides a vehicle, comprising the cooling device described in the first aspect.

[0021] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0022] The cooling device provided by the embodiment of the present disclosure includes a cooling component and a motor component that are arranged at intervals; the motor component includes a windward side facing the cooling component; a flow guide component is provided between the cooling component and the motor component, and the flow guide component includes a avoidance state for avoiding the windward surface and a shielding state for shielding the windward surface; along the flow direction of the airflow, the flow guide component switches between the avoidance state and the shielding state. In the avoidance state, the airflow flows to the windward side through the cooling component, thereby improving the convective heat dissipation of the motor component. In the shielding state, the flow guide component shields the windward side to keep the motor component warm. The embodiment of the present disclosure changes the flow direction of the airflow by the flow guide component, so that in the avoidance state, the air intake of the front cabin can be guided, the flow guide heat dissipation of the motor and the reducer can be achieved, and the convective heat dissipation of the motor component can be improved. In the shielding state, the motor component can be kept warm, the heat dissipation loss of the motor and the reducer can be reduced, the adaptability of pure electric and hybrid vehicles to high and low temperature environments can be improved, and the cruising range can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 It is a structural schematic diagram of the cooling device according to an embodiment of the present disclosure when the flow guide component is in an avoidance state;

[0026] Figure 2 This is a schematic structural diagram of the cooling device described in an embodiment of the present disclosure when the flow guide component is in a shielding state.

[0027] Figure numerals: 1. air intake grille; 2. cooling assembly; 21. condenser; 22. motor radiator; 23. engine radiator; 24. fan; 3. flow guide component; 4. mounting base; 5. motor assembly; 51. motor; 52. motor controller. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0030] Combination Figure 1 and Figure 2 As shown, the cooling device provided by the embodiment of the present disclosure includes a cooling component 2 and a motor component 5 arranged at intervals, and the cooling component 2 and the motor component 5 are both arranged in the front cabin; the motor component 5 includes a windward side facing the cooling component 2; a flow guide component 3 is arranged between the cooling component 2 and the motor component 5, and the flow guide component 3 includes a avoiding state for avoiding the windward surface and a shielding state for shielding the windward surface; along the flow direction of the airflow, the flow guide component 3 switches between the avoiding state and the shielding state. In the avoiding state, the airflow passes through the cooling component 2 and flows to the windward side, improving the convective heat dissipation of the motor component 5. In the shielding state, the flow guide component 3 shields the windward side to keep the motor component 5 warm. The disclosed embodiment changes the direction of the airflow through the guide component 3, so that when in the avoidance state, the air intake of the front cabin can be guided, the heat dissipation of the motor 51 and the reducer can be achieved, and the convective heat dissipation of the motor assembly 5 can be improved. When in the shielding state, the motor assembly 5 can be kept warm, the heat dissipation loss of the motor 51 and the reducer is reduced, the adaptability of pure electric and hybrid vehicles to high and low temperature environments is improved, and the cruising range is improved.

[0031] The flow direction of the airflow may be the front-rear direction X of the vehicle, that is, the flow direction of the airflow entering from the air intake grille 1 and passing through the cooling assembly 2 .

[0032] Optionally, the guide component 3 can be switched between the avoidance state and the shielding state according to the temperature. Optionally, the guide component 3 can be switched between the avoidance state and the shielding state by deforming itself according to the temperature.

[0033] Optionally, the guide component (3) includes a guide plate and a motor. The guide plate can be driven by the motor. The motor drives the guide plate to swing, so that the guide plate can be switched between an avoidance state and a shielding state.

[0034] In some specific embodiments, at a first set temperature, the guide component 3 is in an avoidance state, and the airflow passes through the cooling component 2 and flows to the windward side, thereby improving the convective heat dissipation of the motor component 5. At a second set temperature, the guide component 3 is in a shielding state, and the guide component 3 shields the windward side to keep the motor component 5 warm.

[0035] In some specific embodiments, the first set temperature corresponds to a high temperature environment condition. After the airflow enters from the air intake grille 1, it flows to the windward side through the cooling assembly 2. The guide component 3 can guide the air intake of the front cabin to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect. The second set temperature corresponds to a low temperature environment condition. After the airflow enters from the air intake grille 1, the guide component 3 can keep the motor assembly 5 warm, reduce the heat dissipation loss of the motor 51 and the reducer, improve the high and low temperature environment adaptability of pure electric and hybrid vehicles, and improve the cruising range.

[0036] The cooling device provided in the embodiment of the present disclosure can increase the oil temperature of the electric drive system of the vehicle by more than 15°C at an ambient temperature of -10°C, reduce the electric drive drag loss by 20%, and increase the low-temperature endurance by 3km.

[0037] In some specific embodiments, at least part of the flow guide component 3 is made of shape memory alloy material, which can achieve flow guidance and heat dissipation at high temperature and room temperature, as well as flow guidance and heat preservation at low temperature, thereby improving the adaptability of pure electric and hybrid vehicles to high and low temperature environments and increasing the cruising range.

[0038] The shape of the flow guide component 3 changes with temperature and meets the flow guide expectations; the shape of the flow guide component 3 changes with temperature, taking into account high and low temperature conditions, and forming different flow guide effects. When at the first set temperature, the flow guide component 3 is in an avoidance state, and when at the second set temperature, the backflow component is in a shielding state.

[0039] In some specific embodiments, the flow guide component 3 includes a curved portion made of a shape memory alloy material; the ambient temperature is T, the curvature of the curved portion is ρ, and the ambient temperature T is proportional to the curvature ρ of the curved portion. When the temperature is higher, the curvature of the curved portion is greater, and the flow guide component 3 bends when switching between the shielding state and the avoidance state through the deformation of the curved portion, which can achieve heat dissipation in the avoidance state and heat preservation of the motor component 5 in the shielding state.

[0040] In some specific embodiments, when the ambient temperature is high, such as wind temperature>30°C, the flow guide component 3 is in a bent state, such as Figure 1 At this time, the air discharged by the fan 24 flows through the air guide component 3 and flows to the motor assembly 5, thereby increasing the heat dissipation wind speed, improving the convective heat dissipation of the electric drive system, and preventing the electric drive system from overheating.

[0041] When the ambient temperature is low, such as wind temperature <0°C, the flow guide component 3 is in a straight state. Figure 2 At this time, the air outlet of the fan 24 is blocked by the air guide component 3, and the cold air cannot flow through the surface of the motor assembly 5, thereby reducing the heat dissipation of the housing of the electric drive system, increasing the oil temperature of the electric drive system, reducing the driving loss, and increasing the cruising range.

[0042] Optionally, the guide component 3 is designed according to the shape of the motor assembly 5 shell and meets the requirements of the front cabin layout to avoid interference with other parts. At the same time, it can effectively guide the flow, increase the surface wind speed of the motor assembly 5 at high temperatures, and reduce the surface wind speed of the motor assembly 5 at low temperatures. The material of the guide component 3 can be a memory alloy, and the bending limit state is above 30°C, such as Figure 1 ; Below 0℃, it is in a flat state, such as Figure 2 ; Between 0 and 30°C is the intermediate bending state.

[0043] In some specific embodiments, the flow guide component 3 bends when switching between the shielding state and the avoidance state. The flow guide component 3 bends when switching between the shielding state and the avoidance state, so as to achieve heat dissipation in the avoidance state and heat preservation of the motor assembly 5 in the shielding state.

[0044] In some specific implementations, when the guide component 3 is in the shielding state, the guide component 3 is in the shape of a flat plate, which can improve the shielding effect and make the air flow from the upper and lower sides of the guide component 3 respectively.

[0045] In some specific embodiments, when the guide component 3 is in the avoidance state, the guide component 3 is curved, and can guide the airflow from the cooling component 2 to the motor component 5, so that when the airflow passes through the cooling component 2 and flows to the windward side, the air intake of the front cabin can be guided to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect.

[0046] In some specific embodiments, when the guide component 3 is curved, the top of the guide component 3 bends downward in a direction away from the motor assembly 5, so that the airflow can guide the air intake of the front cabin when it passes through the cooling assembly 2 and flows to the windward side, thereby increasing the air intake of the cooling module and improving the heat dissipation effect.

[0047] In some specific embodiments, when the guide component 3 is in the avoidance state, the two sides of the guide component 3 include a first curved surface and a second curved surface, and the first curved surface and the second curved surface are both smooth surfaces, and the bending directions of the first curved surface and the second curved surface are consistent, so as to facilitate guiding the airflow from the cooling component 2 to the motor component 5, so that when the airflow passes through the cooling component 2 and flows to the windward side, the air intake of the front cabin can be guided to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect.

[0048] In some specific embodiments, when the guide component 3 is in the shielding state, the top of the guide component 3 is flush with the top of the motor assembly 5, and the bottom of the guide component 3 is flush with the bottom of the motor assembly 5, thereby reducing the possibility of airflow flowing into the motor assembly 5. In low temperature conditions, the motor assembly 5 can be kept warm, reducing the heat dissipation loss of the motor 51 and the reducer, improving the adaptability of pure electric and hybrid vehicles to high and low temperature environments, and improving the cruising range.

[0049] In some specific embodiments, when the guide component 3 is in the shielding state, along the width direction Y of the vehicle, the width of the guide component 3 is greater than the width of the windward side; along the height direction Z of the vehicle, the height of the guide component 3 is greater than the height of the windward side, which can keep the motor assembly 5 warm, improve the insulation effect, reduce the heat dissipation loss of the motor 51 and the reducer, improve the adaptability of pure electric and hybrid vehicles to high and low temperature environments, and improve the cruising range.

[0050] In some specific embodiments, when the guide component 3 is in the shielding state, the projection area of ​​the guide component 3 along the X direction is larger than the projection area of ​​the motor assembly 5 along the X direction, which can insulate the motor assembly 5, improve the insulation effect, reduce the heat dissipation loss of the motor 51 and the reducer, improve the adaptability of pure electric and hybrid vehicles to high and low temperature environments, and improve the cruising range.

[0051] In some specific embodiments, the air guide component 3 includes a connecting portion, and the connecting portion is mounted on the mounting seat 4. The mounting seat 4 can be set on the frame or the body, and can also be fixed to the frame or the body through a connecting piece. Of course, the mounting seat 4 can also be formed on the frame. By arranging the air guide component 3 on the mounting seat 4, when in the avoidance state, the airflow passes through the cooling assembly 2 and flows to the windward side, thereby improving the convective heat dissipation of the motor assembly 5. When in the shielding state, the air guide component 3 shields the windward side to keep the motor assembly 5 warm.

[0052] The flow guide component 3 may be made entirely of a shape memory alloy material, or may be made partially of a shape memory alloy material.

[0053] Optionally, the guide component 3 includes a guide plate, and the connecting portion is arranged on the guide plate. Optionally, one end of the guide plate away from the connecting portion is made of a shape memory alloy material. Optionally, one end of the guide plate close to the connecting portion is made of a shape memory alloy material.

[0054] In some specific embodiments, in the avoidance state, the end of the guide component 3 away from the mounting seat 4 is bent in the direction away from the motor assembly 5 and toward the mounting seat 4, which can guide the airflow from the cooling assembly 2 to the motor assembly 5, thereby improving the heat dissipation effect of the motor assembly 5.

[0055] In some specific embodiments, in the avoidance state, the end of the guide component 3 away from the mounting seat 4 is bent toward the side close to the cooling component 2, so as to facilitate guiding most of the airflow from the cooling component 2 to the motor component 5, so that the airflow can guide the air intake of the front cabin when passing through the cooling component 2 and flowing to the windward side, thereby preventing hot air from flowing back, increasing the air intake of the cooling module, and improving the heat dissipation effect.

[0056] In some specific embodiments, when the guide component 3 is in the shielding state, the angle between the guide component 3 and the plane where the mounting seat 4 is located is less than 90°. The motor assembly 5 can be kept warm, the heat dissipation loss of the motor 51 and the reducer can be reduced, the adaptability of pure electric and hybrid vehicles to high and low temperature environments can be improved, and the cruising range can be improved. In addition, the angle between the guide component 3 and the plane where the mounting seat 4 is located is less than 90°, which can optimize the aerodynamic resistance of the vehicle during driving, reduce the drag coefficient, and improve the power economy.

[0057] The air guide component 3 may be tilted toward the cooling assembly 2, or may be tilted toward the motor assembly 5. Preferably, the air guide component 3 is tilted toward the cooling assembly 2, which can optimize the aerodynamic resistance of the vehicle during driving, reduce the wind resistance coefficient, and improve the power economy.

[0058] In some specific implementations, when the air guide component 3 is in the shielding state, the top of the air guide component 3 abuts against the motor assembly 5. This reduces the possibility of airflow flowing into the motor assembly 5, improves the heat preservation of the motor assembly 5 in a low temperature state, reduces the heat dissipation loss of the motor 51 and the reducer, improves the adaptability of pure electric and hybrid vehicles to high and low temperature environments, and increases the cruising range.

[0059] In some specific embodiments, a driving member is further included; the connecting portion is rotatably connected to the mounting seat 4, and the driving member is connected to the guide component 3, for driving the guide component 3 to swing so that the guide component 3 switches between the shielding state and the avoidance state.

[0060] When the first set temperature is reached, the guide component 3 is in the avoidance state, and the end of the guide component 3 away from the connection portion is inclined toward the cooling assembly 2 and toward the direction close to the mounting seat 4; the airflow flows through the cooling assembly 2 to the windward side, which can guide the air intake of the front cabin to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect. When the second set temperature is reached, the guide component 3 is in the shielding state, which can keep the motor assembly 5 warm, reduce the heat dissipation loss of the motor 51 and the reducer, improve the adaptability of pure electric and hybrid vehicles to high and low temperature environments, and increase the cruising range.

[0061] Optionally, the vehicle is provided with a temperature sensor for detecting external temperature information and transmitting the detected temperature information to a controller. The controller is connected to a driving member for driving the guide component 3, thereby controlling the position of the guide component 3, so that at a first set temperature, the guide component 3 is in an avoidance state, at a second set temperature, the guide component 3 is in a shielding state, or at a third set temperature, the guide component 3 is located between the avoidance state and the shielding state.

[0062] Optionally, the driving member may be a motor.

[0063] In some specific embodiments, the cooling assembly 2 includes a condenser 21, a motor radiator 22, an engine radiator 23 and a fan 24; the fan 24 is arranged close to the motor assembly 5; along the axial direction of the fan 24, the engine radiator 23, the motor radiator 22 and the condenser 21 are arranged in sequence in a direction away from the fan 24, which can fully exchange heat, improve the heat dissipation efficiency, and improve the utilization efficiency of the cooling airflow. The condenser 21 can dissipate heat for the air conditioning system, meeting the heat dissipation requirements of the air conditioning system. The engine radiator 23 is a heat exchange medium for cooling the engine, that is, a heat exchanger for cooling the cooling water. The motor radiator 22 is a heat exchange medium for cooling the generator, the drive motor and the generator controller, and the drive motor controller, that is, a heat exchanger for cooling the cooling water. The condenser 21 releases the heat of liquefaction to condense the high-temperature and high-pressure gaseous refrigerant flowing into the air conditioning system for supplying cold air to the interior of the vehicle into a liquid state refrigerant and then discharges it.

[0064] The motor assembly 5 may include a motor 51 and a motor controller 52 , which may specifically include a generator, a drive motor, a generator controller, a drive motor controller, and the like.

[0065] In some specific embodiments, when the guide component 3 is in the avoidance state, the end of the guide component 3 away from the connection part is lower than the bottom end of the fan 24, which can guide the air entering the front cabin to prevent hot air from flowing back, increase the air intake of the cooling module, and improve the heat dissipation effect.

[0066] The vehicle provided by the embodiment of the present disclosure includes the cooling device provided by the embodiment of the present disclosure. Since the vehicle provided by the embodiment of the present disclosure has the same advantages as the cooling device provided by the embodiment of the present disclosure, they will not be described in detail here.

[0067] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above are only specific embodiments of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cooling device, characterized in that: include: Cooling components and motor components arranged at intervals; The motor assembly includes a windward side facing the cooling assembly; A flow guide component is provided between the cooling component and the motor component, and the flow guide component includes a avoiding state for avoiding the windward surface and a shielding state for shielding the windward surface; Along the flow direction of the airflow, the air guide component switches between the avoidance state and the shielding state.

2. The cooling device according to claim 1, characterized in that: The flow guide component comprises a curved portion made of a shape memory alloy material; the ambient temperature T is proportional to the curvature ρ of the curved portion.

3. The cooling device according to claim 1, characterized in that: When the flow guide component is in the shielding state, the flow guide component is in a flat plate shape; And / or, when the flow guide component is in the avoidance state, the flow guide component is curved.

4. The cooling device according to claim 3, characterized in that: When the flow guide component is in the avoidance state, two sides of the flow guide component include a first curved surface and a second curved surface, the first curved surface and the second curved surface are both smooth surfaces, and the first curved surface and the second curved surface have the same bending direction.

5. The cooling device according to claim 1, characterized in that: When the flow guide component is in the shielding state, the top of the flow guide component is flush with the top of the motor assembly, and the bottom of the flow guide component is flush with the bottom of the motor assembly.

6. The cooling device according to any one of claims 1 to 5, characterized in that: The flow guide component includes a connecting portion, and the connecting portion is installed on a mounting seat.

7. The cooling device according to claim 6, characterized in that: In the avoidance state, one end of the flow guide component away from the mounting seat is bent in a direction away from the motor assembly and toward the mounting seat.

8. The cooling device according to claim 6, characterized in that: In the avoidance state, one end of the air guide component away from the mounting seat is bent toward a side close to the cooling assembly.

9. The cooling device according to claim 6, characterized in that: When the guide component is in the shielding state, an angle between the guide component and the plane where the mounting seat is located is less than 90°.

10. The cooling device according to claim 6, characterized in that: When the flow guide component is in the shielding state, the top of the flow guide component abuts against the motor assembly.

11. The cooling device according to claim 6, characterized in that: Also includes a drive member; The connecting portion is rotatably connected to the mounting seat, and the driving member is connected to the flow guide component, and is used to drive the flow guide component to swing so that the flow guide component switches between the shielding state and the avoidance state.

12. A vehicle, characterized in that: A cooling device comprising the cooling device according to any one of claims 1 to 11.

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