CN115214300A

CN115214300A - Vehicle heat dissipation module, system, control method of system and vehicle

Info

Publication number: CN115214300A
Application number: CN202210368555.6A
Authority: CN
Inventors: 李学伟
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-10-21

Abstract

The invention provides a vehicle heat dissipation module, a system, a control method thereof and a vehicle, wherein the vehicle heat dissipation module comprises a radiator, an air inlet control assembly and a heat dissipation fan, wherein the air inlet control assembly is arranged at the upstream of the radiator along the air flow direction, the heat dissipation fan is arranged at the downstream of the radiator, and air flows into the radiator from the air inlet control assembly; the air inlet control assembly is provided with a frame, blades and a driving part, wherein the frame is used for being connected with a shell of the radiator and forming a closed air flow channel, the blades are rotatably arranged on the frame in multiple rows, the driving part is used for driving the blades to rotate so as to change the flow area of the air inlet control assembly, an air inlet cavity which can be communicated with an air outlet pipeline of the vehicle air conditioning system and an air outlet which is communicated with the air inlet cavity are arranged in the blades, and the air outlet is used for blowing air to one side of the radiator. The vehicle heat dissipation module can blow cold air to the air inlet side of the radiator by using the vehicle air conditioning system, can improve the heat dissipation capacity of the vehicle, and meets the cooling requirement of the vehicle.

Description

Vehicle heat dissipation module, system, control method of system and vehicle

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle heat dissipation module. The invention also relates to a control method of the vehicle heat dissipation module and a vehicle provided with the vehicle heat dissipation module.

Background

When the vehicle is used in a high-temperature environment, particularly when the vehicle is just in a high-power and high-torque vehicle using scene, the cooling of a three-electric system (a battery, a motor and an electric control system) in an engine and a hybrid vehicle type is very important for a traditional fuel vehicle type and a hybrid vehicle type. If the cooling requirement cannot be met, the water temperature of the engine or the three-electric-system is high, and if high temperature occurs for a long time, the performance of the engine is attenuated and the three-electric-system is ablated.

In the prior art, in order to meet the cooling requirement in a high-temperature environment, one way is to match a radiator with a larger size and a radiator fan with a higher power according to the extreme high-temperature working condition in the design of a vehicle so as to improve the heat dissipation capacity of the radiator and meet the cooling requirement. Another way is to limit the power and torque output of the power system by software logic to avoid high water temperature conditions.

However, if the radiator and the radiator fan are matched according to the extreme working condition, the development difficulty is increased, the cost of the whole vehicle is increased, and the platform design is difficult to realize. If the power and torque output of the power system are limited through software logic, the dynamic property of the whole vehicle is also influenced, and the driving quality of the whole vehicle is reduced.

Disclosure of Invention

In view of the above, the present invention is directed to a vehicle heat dissipation module, so as to meet the cooling requirement of a vehicle when the vehicle is used in a high temperature environment.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

a vehicle radiator module includes a radiator, and an intake air control assembly disposed upstream of the radiator in an air flow direction, and a radiator fan disposed downstream of the radiator, air flowing from the intake air control assembly into the radiator;

the air inlet control assembly is provided with a frame, blades and a driving part, the frame is used for being connected with the shell of the radiator to form a closed air flow channel, the blades are rotatably arranged on the frame in multiple rows, and the driving part is used for driving the blades to rotate so as to change the flow area of the air inlet control assembly;

the blade is internally provided with an air inlet cavity which can be communicated with an air outlet pipeline of a vehicle air conditioning system and an air outlet which is communicated with the air inlet cavity, and the air outlet is used for blowing air to one side of the radiator.

Further, the intake control assembly is integrated on the radiator.

Furthermore, the air outlet comprises a plurality of air outlet holes arranged on the blades at intervals.

Further, be equipped with the air chamber in the frame, be equipped with on the frame with the air inlet of air chamber intercommunication, the air inlet is used for being connected with vehicle air conditioning system's air-out pipeline, the blade rotates through the pivot to be connected on the frame, just the chamber of admitting air passes through the pivot with communicate in the air chamber.

Further, the frame is arranged corresponding to one end of the blade, the driving part is arranged corresponding to the other end of the blade, and the blade is connected to the driving part through the driven shaft.

Compared with the prior art, the invention has the following advantages:

according to the vehicle heat dissipation module, the air inlet control assembly is arranged, the air inlet cavity capable of being communicated with the air outlet pipeline of the vehicle air conditioning system and the air outlet capable of blowing air to one side of the radiator are arranged on the blades in the assembly, so that cold air can be blown to the air inlet side of the radiator by the vehicle air conditioning system, the heat dissipation capacity of a vehicle is improved, and the cooling requirement of the vehicle can be met when the vehicle is used in a high-temperature environment.

In addition, the air inlet control assembly is integrated on the radiator, so that the reliable arrangement of the cold air inlet assembly can be realized, and the arrangement form is simple and convenient. The air outlet adopts an air outlet hole, so that the structure is simple and the design and the manufacture are easy. And through the setting of air chamber in the frame, can be convenient for realize air intake chamber and vehicle air conditioning system's intercommunication in the blade for frame and drive division respectively correspond to the one end setting of blade, then can realize the reasonable distribution of frame and drive division, help the holistic compact design of air admission control assembly.

The invention also provides a vehicle heat dissipation system, which comprises the vehicle heat dissipation module arranged in a vehicle, a controller arranged in the vehicle, a vehicle air conditioning system and a temperature detection unit, wherein the vehicle air conditioning system and the temperature detection unit are connected with the controller;

the air inlet control assembly is connected with an air outlet pipeline of the vehicle air conditioning system through an air inlet pipe, the driving portion is connected with the controller, and the temperature detection unit comprises a cooling liquid temperature sensor for detecting the temperature of cooling liquid in the vehicle power assembly and an environment temperature sensor for detecting the environment temperature outside the vehicle.

Furthermore, an air compression pump connected with the controller is connected to the air inlet pipe in series.

Furthermore, an air flow control valve connected with the controller is connected to the air inlet pipe in series.

Furthermore, an air speed sensor is arranged on the air outlet side of the radiator.

The invention also provides a control method of the vehicle cooling system, which comprises the following steps:

acquiring the temperature of cooling liquid in a vehicle power assembly and the temperature of an environment outside a vehicle;

and controlling the vehicle air conditioning system to start refrigeration, controlling the driving part to open the blades according to a preset opening threshold value, and controlling the air flow control valve to open according to a preset opening threshold value according to the acquired temperature of the cooling liquid and the temperature of the environment outside the vehicle.

Further, the control method further includes:

in a parking state, starting the cooling fan and the blades, and acquiring a wind speed signal of each wind speed sensor;

and controlling the vehicle air conditioning system to start according to the acquired air speed signal, controlling the air flow control valve to open, and purging the radiator.

Furthermore, the wind speed sensors are regularly arranged, each blade is divided into a plurality of blade groups which are arranged in one-to-one correspondence with the wind speed sensors, and the driving part is arranged corresponding to each blade group;

the control method further comprises the following steps:

when the cooling fan and the blades are opened, acquiring a wind speed signal of each wind speed sensor;

adjusting the opening degree of the blade group corresponding to each wind speed sensor according to the wind speed signal of each wind speed sensor, wherein the wind speed signals of the wind speed sensors are the same; or adjusting the opening degree of the blade group corresponding to each wind speed sensor according to the wind speed signal of each wind speed sensor and a preset wind speed threshold value signal.

According to the vehicle heat dissipation system and the control method thereof, the vehicle heat dissipation module is adopted, and the arrangement of the vehicle air conditioning system, the temperature detection unit and the like is adopted, so that the cold air of the vehicle air conditioning system can be used for cooling the radiator when the vehicle is used in a high-temperature environment, the heat dissipation capacity of the radiator can be improved, the cooling requirement of the vehicle can be met when the vehicle is used in the high-temperature environment, and the use quality of the vehicle is improved.

And through setting up the air compressor pump, can increase the flow of cold air in unit interval, help promoting the cooling effect. The setting of air flow control valve then can be based on the cooling performance needs, and the adjustment cold air mass flow is favorable to realizing accurate control.

In addition, the air speed sensor is arranged, and more sand grains or dust can be deposited on the radiator by utilizing the detection of the air speed sensor, so that the air circulation section is reduced, the wind resistance is larger, and when the air speed cannot reach a set value, the air conveyed by the vehicle air conditioner is used for blowing the radiator to remove the sand grains, dust and other deposits attached to the surface of the radiator, so that the self-cleaning of the radiator can be realized, and the heat exchange efficiency of the radiator is improved.

In addition, by utilizing the detection of the plurality of regularly arranged wind speed sensors and correspondingly adjusting the opening degree of the blade group corresponding to the wind speed sensors, the respective control of the heat dissipation air quantity of different areas of the radiator can be realized, and therefore the practicability of the heat dissipation system can be further improved.

The invention further provides a vehicle, and the vehicle cooling system is arranged in the vehicle.

By arranging the vehicle heat dissipation system, the vehicle can improve the heat dissipation capacity of the radiator and meet the cooling requirement of the vehicle when the vehicle is used in a high-temperature environment, so that the use quality of the vehicle can be improved, and the vehicle has good practicability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a vehicle heat dissipation module according to a first embodiment of the invention;

FIG. 2 is a schematic view of the structure shown in FIG. 1 from another perspective;

FIG. 3 is a side view of the structure shown in FIG. 1;

fig. 4 is an exploded view of a vehicle heat dissipation module according to a first embodiment of the present invention;

FIG. 5 is a schematic view of a heat sink according to one embodiment of the present invention;

FIG. 6 is a schematic diagram of an intake control assembly according to one embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a blade according to a first embodiment of the present invention;

fig. 8 is a schematic flow diagram of cool air in the vehicle cooling system according to the second embodiment of the present invention;

fig. 9 is a schematic connection diagram of a controller in a vehicle cooling system according to a second embodiment of the present invention;

FIG. 10 is a schematic sectional view of a heat sink according to a second embodiment of the present invention;

FIG. 11 is a schematic view of a vane assembly according to a second embodiment of the present invention;

fig. 12 is a flowchart of a control method of a vehicle cooling system according to a second embodiment of the present invention;

FIG. 13 is a flowchart illustrating a control process for self-cleaning of a heat sink according to a second embodiment of the present invention;

FIG. 14 is a control flow chart of the heat sink according to the second embodiment of the present invention with the same wind volume and wind speed;

FIG. 15 is a flowchart illustrating the control of the radiator according to the second embodiment of the present invention when the air volume and the air speed are different;

description of reference numerals:

1. a heat sink; 101. a water chamber; 102. a core body; 103. an end plate;

2. a heat radiation fan;

3. an intake air control assembly; 301. a frame; 302. an air inlet; 303. a blade; 304. a drive section; 3031. a blade body; 3032. a rotating shaft; 3033. a driven shaft; 3034. an air outlet; 303a, a zone blade; 303b, b zone blades; 303c, c zone blades; 303d, d zone blades;

4. a wind speed sensor; 5. a controller; 6. a vehicle air conditioning system; 7. an air flow control valve; 8. an air compression pump; 9. a coolant temperature sensor; 10. an ambient temperature sensor.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are used based on the orientation or positional relationship shown in the drawings, they are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same order, but are to be construed as referring to the same order.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be fixed, detachable, or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art in conjunction with specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

The present embodiment relates to a vehicle heat radiation module, which is provided in a front cabin of a vehicle, in particular, as a heat radiation module for radiating heat from engine coolant in an existing vehicle, so as to be able to radiate heat from coolant flowing through a radiator 1 using air taken in from a front end of the vehicle while the vehicle is running.

In terms of overall design, as shown in fig. 1 to 4, the vehicle radiator module of the present embodiment includes a radiator 1, and an intake air control assembly 3 disposed upstream of the radiator 1, and a radiator fan 2 disposed downstream of the radiator 1 in the air flow direction, and air flows into the radiator 1 from the intake air control assembly 3.

Further, the intake control module 3 includes a frame 301, a blade 303, and a driving unit 304. The frame 301 is used for connecting with the housing of the heat sink 1 and forming a closed air flow channel, the blades 303 are rotatably disposed on the frame 301 in multiple rows, and the driving portion 304 is used for driving each blade 303 to rotate so as to change the flow area of the intake control assembly 3. In addition, an air inlet cavity which can be communicated with an air outlet pipeline of the vehicle air conditioning system 6 and an air outlet which is communicated with the air inlet cavity are also arranged in the blade 303, and the air outlet is used for blowing air to one side of the radiator 1 so as to cool the radiator 1 by using cold air of the vehicle air conditioning system 6.

Specifically, the radiator 1 and the radiator fan 2 of the present embodiment are based on conventional products applied in existing vehicles, and the radiator fan 2 generally adopts an electronic fan. Meanwhile, as shown in fig. 4 and fig. 5, the heat sink 1 includes two side water chambers 101, a core 102 connected between the two side water chambers 101, and end plates 103 respectively located at upper and lower ends, and the two side water chambers 101 and the upper and lower end plates 103 constitute a housing portion of the heat sink 1. The water chamber 101 is provided with an inlet and outlet structure connected to a cooling pipeline of the power assembly, and the core 102 generally has flat tubes and fins, which constitute a main heat dissipation portion of the heat sink 1. The end plates 103 connect the water chambers 101 at both sides to ensure structural stability of the entire radiator 1, and each end plate 103 has a portion protruding toward the intake air control assembly 3 side in the present embodiment, which is mainly used to cooperate with the frame 301 to close the formed air flow passage.

It should be noted that the schematic structures of the radiator 1, the radiator fan 2 and the intake air control assembly 3 are also simply shown in fig. 1 to 4, so as to embody the configuration of the vehicle radiator module of the present embodiment, and also to embody the relative positional relationship among the components of the radiator 1, the radiator fan 2 and the intake air control assembly 3.

In the implementation, the mutual connection among the components of the radiator 1, the radiator fan 2, the air intake control assembly 3, and the like, and the installation thereof in the front cabin of the vehicle, and the like, may also refer to the related structures in the existing vehicle.

In the present embodiment, as a preferred implementation form, the air intake control assembly 3 may be integrated on the radiator 1, so that the overall structure of the vehicle radiator module may be more compact, thereby facilitating the arrangement in the front cabin of the vehicle.

Moreover, as for the integrated arrangement of the air intake control assembly 3 on the radiator 1, an exemplary structure thereof may still be shown in fig. 1 and fig. 2, and with reference to fig. 5 to fig. 7, at this time, the frames 301 in the air intake control assembly 3 are of a structure similar to the water chambers 101 on the radiator 1, which are also specifically two oppositely arranged, and an air chamber is arranged in each frame 301, and an air inlet 302 communicated with the air chamber is also arranged on each frame 301, and the air inlet 302 is used for connecting with an air outlet pipeline of the vehicle air conditioning system 6. In addition, one end of the vane 303 is also rotatably connected to the frame 301 through the rotating shaft 3032, and the rotating shaft 3032 is hollow, so that the air inlet cavity in the vane 303 is communicated with the air chamber in the frame 301 through the rotating shaft 3032.

In order to avoid air leakage in the gap between the rotating shaft 3032 and the frame 301, in a specific implementation, for example, a rubber seal ring is disposed between the rotating shaft 3032 and the frame 301 to seal the gap therebetween, and meanwhile, the elastic rubber material is adopted to avoid adverse influence on the rotation of the blade 301.

The driving portion 304 of the present embodiment is disposed corresponding to the other end of the blade 301, as opposed to the frame 301 disposed corresponding to the one end of the blade 301. Thereby, both ends of the blade 301 are rotatably received by the frame 301 and the driving part 304, respectively. Specifically, the blade 301 is also connected to the driving unit 304 via the driven shaft 3033 at the end, and when the driving unit 304 operates, the driving force output from the driving unit 304 drives the blade 301 to rotate integrally via the driven shaft 3033.

As one possible implementation form, the driving portion 304 of the present embodiment may adopt a related structure in an active intake grill of an existing vehicle. At this time, the driving part 304 generally includes a bracket as a mounting base, and a motor and a spur rack, etc. disposed on the bracket, the spur rack is slidably disposed on the bracket, and an output shaft of the motor is engaged with the spur rack through a driving gear. The driven shaft 3033 at one end of the blade 301 is rotatably arranged on the bracket, and the driven shaft 3033 is also meshed with the straight rack through the driven gear on the driven shaft.

Therefore, under the driving of the motor, the straight rack slides to drive the blade 301 to rotate, so as to realize the opening and closing control of the blade 301. It should be noted that, similar to the active grille in the existing vehicle, the plurality of vanes 301 arranged side by side in the inlet control assembly 3 are generally driven to rotate by the same spur rack, so as to realize the synchronous opening and closing of the vanes 301.

In the present embodiment, the blades 301 may be specifically arranged in two rows as shown in fig. 1, 4 or 6, for example, as a preferred embodiment, based on the frame 301 and the driving part 304 being respectively arranged corresponding to both ends of the blades 301. The driving part 304 is located between the two rows of blades 301, and the two frames 301 are distributed on two sides of the integral air intake control assembly 3, so that the frames 301 on the two sides send air from the vehicle air conditioning system 6 into the blades 301, and the driving part 304 in the middle controls the opening and closing of the blades 301.

When the driving portion 304 is located between the two rows of blades 301, it should be noted that, in this case, the blades 301 on both sides of the driving portion 304 may be driven to rotate by the same driving portion 304, or the blades 301 on both sides may be driven by different driving portions 304.

For example, the driven shafts 3033 of the blades 301 on both sides may be connected together and engaged with the spur rack through the same driven gear in the manner that the blades 301 on both sides are driven by the same driving part 304. Meanwhile, the driven shaft 3033 may be solid, so that the air inlet cavities in the two side blades 301 are independent from each other, or the driven shaft 3033 may be designed to be hollow so as to be communicated with the air inlet cavities in the two side blades 301. When the driven shaft 3033 is hollow, the frame 301 on one side can be omitted and replaced by a simple vertical plate structure. However, to ensure the amount of air entering the vanes 301, it is preferable to provide frames 301 on both sides of the inlet control assembly 3.

In the case of the mode in which the both-side blades 301 are driven by different driving portions 304, it is sufficient to provide two sets of driving portions 304 in the middle, the two sets being provided respectively corresponding to the both-side blades 301. In order to reduce the number of components and to facilitate ensuring the stability of the overall structure of the intake control assembly 3, it is understood that when two sets of driving portions 304 are provided, the motors, spur racks, and the like in the two sets of driving portions 304 may be integrally provided on the same bracket.

The blades 301 on the two sides are driven to rotate by different driving parts 304, and the embodiment can realize different control on the opening degrees of the blades 301 on the two sides. In addition, in a preferred embodiment related to the second embodiment, the blades 301 on both sides are driven by different driving portions 304, and not only the blades 301 on both sides are driven by different driving portions 304, but also the blades 301 in the same row are divided into different groups, and each group of blades 301 is driven by a different driving portion 304.

In this embodiment, when the intake control module 3 adopts the structure shown in fig. 6, the frame 301 in the intake control module 3 can be molded in the radiator 1 simultaneously with molding the water chamber 101 in the radiator 1 in the specific manufacturing process. Each frame 301 may be fixed to corresponding header 101, or may be fixed to header plate 103 of heat sink 1 together with header 101. The frame 3015 is disposed on the air intake side of the heat sink 1 compared to the water chamber 101, and the frame 301 is provided with the air inlet 302.

The driving portion 304 located in the middle is fixed to the end plate 103 by a bracket as a base for the driving portion, and after the vanes 301 are transferred between the frame 301 and the driving portion 304, they are arranged side by side on the air intake side of the core 102 of the radiator 1, so that the air flow rate into the radiator 1 can be controlled similarly to the existing active grille.

Instead of integrating the intake air control module 3 on the radiator 1, the present embodiment may also be implemented such that the intake air control module 3 and the radiator 1 are provided separately. At this moment, the air intake control component 3 can use the active air intake grille in the existing vehicle to be installed on the front end installation frame in the front cabin of the vehicle, and a guide plate is further included in the structure of the air intake control component 3 or the radiator 1, so as to ensure that air enters the radiator 1 through the air intake control component 3. Alternatively, the intake air control unit 3 can be connected to the radiator 1 via the baffle plate.

When the intake control assembly 3 and the radiator 1 are disposed independently of each other, it should be noted that a closed space surrounded by the baffle plate is generally formed therebetween, and the space is also referred to as the above-mentioned closed air flow passage. When the cold air of the vehicle air conditioning system 6 is blown out through the blades 301 of the air intake control assembly 3, the cold air can be more sufficiently mixed with the air outside the vehicle entering through the gaps between the blades 301 in the space, so that the utilization effect of the cold air can be improved to a certain extent compared with the case that the air intake control assembly 3 is closer to the radiator 1.

However, when the above-mentioned closed space is formed, the distance between the intake control unit 3 and the radiator 1 is increased, which may affect the blowing effect of the air blown by the blades 301 on the surface of the radiator 1, and may be disadvantageous to promote the self-cleaning function of the radiator 1 described below. Certainly, during the specific design, a more reasonable balance point can be found through simulation or real vehicle verification so as to obtain the optimal service performance.

As shown in fig. 7, as a preferred implementation form, the air outlet on the blade 301 of this embodiment specifically includes an air outlet hole 3034 opened on the blade 303, and the air outlet hole 3034 is a plurality of air outlet holes arranged at intervals on the blade 303. The air outlet is formed by the air outlet hole 3034, the structure is simple, the design and the manufacture are easy, and meanwhile, the air outlet hole 3034 is designed to enable cold air to be blown to the radiator at a high flow speed, so that the cold air and air outside the vehicle can be mixed, and the surface of the radiator 1 can be blown.

The specific application of the vehicle heat dissipation module of the present embodiment can be seen from the description of the second embodiment below. In addition, the vehicle heat dissipation module of the embodiment is provided with an air inlet cavity which can be communicated with an air outlet pipeline of the vehicle air conditioning system 6 and an air outlet which blows air to one side of the radiator 1 through the arrangement of the air inlet control component 3 and the blades 301 in the component, so that cold air can be blown to the air inlet side of the radiator 1 by the vehicle air conditioning system 6, the heat dissipation capacity of a vehicle is improved, and the cooling requirement of the vehicle can be met when the vehicle is used in a high-temperature environment.

Example two

The present embodiment relates to a vehicle heat dissipation system, which is shown in fig. 8 and 9 and includes a vehicle heat dissipation module according to the first embodiment, a controller 5, a vehicle air conditioning system 6 and a temperature detection unit, wherein the vehicle heat dissipation module is disposed in a vehicle, and the vehicle air conditioning system and the temperature detection unit are connected to the controller 5.

Wherein, the air inlet 302 on the frame 301 in the air inlet control assembly 3 is connected with the air outlet pipeline of the vehicle air conditioning system 6 through an air inlet pipe, and the driving part 304 in the air inlet control assembly 3 is connected with the controller 5. And, the temperature detection unit specifically includes a coolant temperature sensor 9 for detecting the temperature of coolant in the vehicle powertrain, and an ambient temperature sensor 10 for detecting the ambient temperature outside the vehicle.

Specifically, in the present embodiment, the vehicle air conditioning system 6 may be an existing air conditioning system provided in the vehicle. Of course, the vehicle air conditioning system 6 should have a cooling function to be able to send cool air of a low temperature to the outside. The vehicle power assembly is generally referred to as an engine for a common fuel vehicle type, and the coolant is mainly used for cooling the engine at the moment. For hybrid vehicles, the hybrid vehicle includes an engine and a driving motor using a power battery as an energy source, and the cooling liquid is mainly used for cooling the engine and the three-way system.

In addition, the above-mentioned air inlet pipe for connecting the air outlet pipeline of the vehicle air conditioning system 6 may adopt a conventional ventilation pipeline in the prior art, and the connection between the air inlet pipe and the air outlet pipeline of the vehicle air conditioning system 6, and the connection between the air inlet pipe and the air inlet 302 on each frame 301 through a plurality of branches may also adopt conventional technical means in the prior art. And the flow of cold air in the vehicle air conditioning system 6 to the intake air control assembly 3 through a connecting pipe, a specific schematic of which can be seen in fig. 8.

In this embodiment, the controller 5 may generally adopt an Electronic Control Unit (ECU) of the whole vehicle, and the connections between the ECU and other components may be as shown in fig. 9. Of course, other control components arranged in the vehicle and connected with the entire vehicle ECU and the like can be adopted instead of the entire vehicle ECU. The coolant temperature sensor 9 and the ambient temperature sensor 10, which constitute the temperature detection unit, CAN directly use the related sensing components in the existing vehicle, and the signals thereof CAN be obtained through the CAN bus of the whole vehicle.

In addition, in the present embodiment, as a preferred implementation form, an air compression pump 8 connected with the controller 5 may be further connected in series to the air inlet pipe. By providing this air compressor pump 8, the flow rate of the cooling air per unit time can be increased, thereby contributing to an improvement in the cooling effect of the radiator 1. In addition to the air compressor pump 8, as a preferred embodiment, an air flow control valve 7 connected to the controller 5 may also be connected in series with the intake pipe in this embodiment. The air flow control valve 7 can adjust the flow of cold air according to the requirement of cooling performance, and is further favorable for realizing accurate control.

In practice, the air compressor pump 8 may be an electric compressor pump product that is conventional in vehicles, and the air flow control valve 7 may be an electric proportional control valve. Therefore, the start and stop of the air compression pump 8 and the opening ratio of the air flow control valve 7 can be controlled by the control signal of the controller 5.

Based on the above description, when the vehicle cooling system of the present embodiment is used, the control method specifically includes the following steps:

step s11, acquiring the temperature of cooling liquid in the vehicle power assembly and the temperature of the environment outside the vehicle;

and step s12, controlling the vehicle air conditioning system 6 to start refrigeration according to the acquired temperature of the cooling liquid and the temperature of the environment outside the vehicle, controlling the driving part 304 to open the blade 303 according to a preset opening threshold value, and controlling the air flow control valve 7 to open according to a preset opening threshold value.

At this time, in detail, as shown in fig. 12, after the coolant temperature is detected by the coolant temperature sensor 9 and the ambient temperature outside the vehicle is detected by the ambient temperature sensor 10, the controller 5 controls the vehicle air conditioning system 6, the intake air control unit 3, and the air flow control valve 7 according to the detected temperature values and the preset control mode. Of course, when the vehicle air conditioning system 6 is on for cooling and the air flow control valve 7 is in the open state, the controller 5 also controls the air compression pump 8 to be on.

In the present embodiment, an exemplary preset data may be shown in table 1 below with respect to the control of the opening degree of the vane 301 in the intake control unit 3 and the opening ratio of the airflow control valve 7 by the controller 5 based on the temperature of the coolant and the temperature of the environment outside the vehicle.

TABLE 1 controller Preset control parameters

As can be seen from table 1 above, as the ambient temperature and the coolant temperature increase, the opening ratio of the air flow control valve 7 should gradually increase, and the opening degree of the vane 301 in the intake control assembly 3 should first increase and then decrease.

And as the cool air in the vehicle air conditioning system 6 enters the air flow passage, i.e., the intake side of the radiator 1. The controller 5 adjusts the air flow control valve 7 and the vanes 301 according to the temperature of the coolant and the temperature of the environment outside the vehicle, so as to adjust the temperature of the mixed air entering the radiator 1, and thus the heat dissipation capacity of the radiator 1 is improved by the mixed air flowing through the radiator 1.

Of course, it should be noted that when the detected ambient temperature and the coolant temperature are both low, the controller 5 closes the air flow control valve 7, and only controls the opening of the vane 301 to adjust the heat dissipation capacity of the radiator 1. When the air flow control valve 7 is closed, the air compressor pump 8 should also be synchronously closed.

In addition, in the vehicle heat dissipation system of the present embodiment, an air velocity sensor 4 may be further provided on the air outlet side of the radiator 1, and the air velocity sensor 4 may be generally fixed to the frame of the radiator 1 by a bracket. Through the arrangement of the wind speed sensor 4, when the vehicle cooling system of the embodiment is used, the control method further includes the following steps:

s21, in the parking state, starting the cooling fan 2 and the blades 303, and acquiring wind speed signals of the wind speed sensors 4;

and s22, controlling the vehicle air conditioning system 6 to start according to the acquired air speed signal, controlling the air flow control valve 7 to open, and purging the radiator 1.

In detail, the parking state may be a vehicle flameout condition or an idle condition. In conjunction with that shown in fig. 13, to determine whether sand, dust, etc. deposited on the radiator 1 has affected the ventilation performance of the radiator 1. In the present embodiment, in the parking state, the air outside the vehicle flows through the radiator 1 by turning on the cooling fan 2 and the blades 301 in the air intake control assembly 3, and at the same time, the air speed sensor 4 located on the air outlet side of the radiator 1 is also used to detect the air outlet speed of the radiator 1.

In order to ensure the rationality of the wind speed detection, in a specific implementation, the wind speed sensors 4 may be arranged as a plurality of wind speed sensors distributed at different positions on the surface of the whole radiator 1, as shown in fig. 2, and the average value of the detection results of the wind speed sensors 4 is used as the obtained wind speed signal. Moreover, when the rotation speed of the cooling fan 2 is constant, if the wind speed signal detected by the wind speed sensor 4 is lower than the wind speed threshold value calibrated in the design of the whole vehicle, and the difference value between the two is also above the set value, it can be determined that there are many deposits on the radiator 1, and the circulation channel of the radiator 1 is blocked, so that the wind resistance of the radiator 1 is increased.

It should be noted that the above-mentioned wind speed threshold calibrated during the design of the entire vehicle, that is, the wind speed value measured at the same rotation speed of the cooling fan 2 when the surface of the heat sink 1 is clean, may be obtained through simulation, and may be obtained through a completely new real vehicle detection.

When the deposits on the radiator 1 are judged, the system of the embodiment can control the vehicle air conditioning system 6 to start, and control the air flow control valve 7 to open so as to purge the radiator 1, so that the deposits fall off due to purging looseness and can enter an air outlet channel behind the radiator 1 to be discharged.

At this time, it should be noted that the vehicle air conditioning system 6 may generally be turned on for cooling when the radiator 1 is purged, or may be turned on for heating in a parked state depending on the ambient temperature. The vanes 301 in the inlet control assembly 3 are preferably closed, although they may be angled open when the vehicle is previously idling. When the air is blown by the air outlet of the vehicle air conditioning system 6, the air flow control valve 7 can be opened to the maximum to ensure the blowing effect, and the air compression pump 8 is certainly opened.

In the present embodiment, based on the above, the wind speed sensor 4 is arranged in a plurality, and in this case, as a preferred embodiment, for example, as shown in fig. 8, the wind speed sensor 4 is arranged in a plurality of regularly arranged blade groups, and as shown in fig. 9, each blade 303 is also correspondingly divided into a plurality of blade groups arranged in one-to-one correspondence with the wind speed sensor 4, and a driving portion 304 is provided corresponding to each blade group.

At this time, for convenience of description, taking four wind speed sensors 4 as an example, the entire core 102 of the heat sink 1 may be divided into four regions a, b, c, and d according to the position of each wind speed sensor 4, and the wind speed of each region may be detected by the corresponding wind speed sensor 4. All the blades 301 are divided into four groups, and each group of blades 301 can be referred to as a-zone blade 303a, a b-zone blade 303b, a c-zone blade 303c and a d-zone blade 303d. Each set of blades 301 is driven by its corresponding driving portion 304, and the specific arrangement of the driving portion 304 can refer to the description in the first embodiment.

Based on the above arrangement of the wind speed sensor 4 and each blade 301 in the intake control assembly 3, the control method of the present embodiment further includes the steps of:

step s311, when the cooling fan 2 and the blades 303 are turned on, acquiring a wind speed signal of each wind speed sensor 4;

in step 312, the opening degree of the blade group corresponding to each wind speed sensor 4 is adjusted according to the wind speed signal of each wind speed sensor 4, and the wind speed signals of each wind speed sensor 4 are the same.

At this time, as shown in fig. 14, the controller 5 needs to adjust the blade opening degree of the blade group corresponding to each wind speed sensor 4 so that the wind speed signals detected by the wind speed sensors 4 are the same as each other. However, the opening degree of the blade 301 may be decreased for a high wind speed, and the opening degree of the blade 301 should be increased for a low wind speed. By adjusting the opening degrees of the respective groups of blades 301, the wind speeds in the four regions a, b, c, and d corresponding to the respective wind speed sensors 4 can be equalized by closed-loop control of the controller 5 under continuous detection of the wind speed sensors 4.

The wind speed signals detected by the wind speed sensors 4 are the same, so that air can uniformly pass through the core body 102 of the radiator 1, the utilization rate of the radiator 1 can be improved, and the heat radiation performance of the radiator 1 can be improved.

Of course, in addition to making the wind speed at each position of the radiator 1 the same, in view of the specific implementation, as an example, the radiator 1 is sometimes combined by a plurality of radiator units, the water chambers 101 in each unit are fixedly connected together, and the cores 102 in each unit are arranged in sequence and together form the heat dissipation surface of the whole radiator 1. At this time, regarding the radiator 1 having different forms of radiator units, the control method of the present embodiment further includes the steps of:

step s321, when the cooling fan 2 and the blades 303 are opened, acquiring the wind speed signals of the wind speed sensors 4;

and step s322, adjusting the opening degree of the blade group corresponding to each wind speed sensor 4 according to the wind speed signal of each wind speed sensor 4 and the preset wind speed threshold value signal.

Specifically, referring to fig. 15, in this embodiment, according to the vehicle-using scene and the cooling requirements of different components in the vehicle power assembly, under the detection of each wind speed sensor 4, the controller 5 may regulate and control the blade opening of the blade group corresponding to each wind speed sensor 4 according to a preset wind speed threshold signal. For example, if the areas a and b need to be cooled rapidly, the opening degree of the corresponding vane 301 may be increased, and if the areas c and d need to be cooled slowly, the opening degree of the vane 301 should be decreased. By adjusting the opening of each set of blades 301 differently, the wind speed sensor 4 can be controlled in a closed loop manner by the controller 5 under the continuous detection of the wind speed sensor 4, so that the wind speed sensor 4 can have different wind speeds in the corresponding areas.

The vehicle heat dissipation system of the embodiment adopts the vehicle heat dissipation module of the first embodiment, and through the arrangement of the vehicle air conditioning system 6, the temperature detection unit and the like, when the vehicle is used in a high-temperature environment, the cold air of the vehicle air conditioning system 6 is utilized to cool the radiator 1, so that the heat dissipation capacity of the radiator 1 can be improved, the cooling requirement of the vehicle can be met when the vehicle is used in the high-temperature environment, and the use quality of the vehicle is improved.

Meanwhile, in the present embodiment, by introducing air into the vehicle air conditioning system 6, it is also possible to purge the radiator 1 of deposits such as sand particles, dust, and the like attached to the surface of the radiator 1, and it is possible to achieve self-cleaning of the radiator 1 in a parked state. By this self-cleaning, the heat exchange efficiency of the radiator 1 can be improved.

In addition, by means of the arrangement of the plurality of wind speed sensors 4, the corresponding control of wind speeds of different areas of the radiator 1 can be realized, the heat dissipation efficiency of the radiator 1 can be improved, different heat dissipation requirements can be realized, and the practicability is good.

EXAMPLE III

The present embodiment relates to a vehicle, in which the vehicle heat dissipation system of the second embodiment is provided.

The vehicle of the embodiment can be a common fuel vehicle type or a hybrid vehicle type with two power sources of a fuel engine and a power battery.

Moreover, the vehicle of the embodiment can improve the heat dissipation capability of the radiator 1 when the vehicle is used in a high-temperature environment by arranging the vehicle heat dissipation system, so that the cooling requirement of the vehicle is met, the radiator 1 can be automatically cleaned, the heat dissipation efficiency of the radiator 1 is improved, and different control over different heat dissipation requirements of the radiator 1 is realized, so that the use quality of the vehicle can be improved, and the vehicle has good practicability.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle heat dissipation module, characterized in that:

comprises a radiator (1), an air inlet control component (3) arranged at the upstream of the radiator (1) along the air flowing direction, and a heat radiation fan (2) arranged at the downstream of the radiator (1), wherein air flows into the radiator (1) from the air inlet control component (3);

the air inlet control assembly (3) is provided with a frame (301), blades (303) and a driving part (304), wherein the frame (301) is used for being connected with a shell of the radiator (1) and forming a closed air flow channel, the blades (303) are arranged on the frame (301) in a plurality of rows in a rotating mode, and the driving part (304) is used for driving each blade (303) to rotate so as to change the flow area of the air inlet control assembly (3);

the air inlet cavity communicated with an air outlet pipeline of a vehicle air conditioning system (6) and an air outlet communicated with the air inlet cavity are formed in the blade (303), and the air outlet is used for blowing air to one side of the radiator (1).

2. The vehicle heatsink module of claim 1, wherein:

the intake air control assembly (3) is integrated on the radiator (1).

3. The vehicle heatsink module of claim 1, wherein:

the air outlet comprises air outlet holes (3034) formed in the blades (303), and the air outlet holes (3034) are distributed on the blades (303) at intervals.

4. The vehicle radiator module according to any one of claims 1 to 3, wherein:

the air-conditioning structure is characterized in that an air chamber is arranged in the frame (301), an air inlet (302) communicated with the air chamber is formed in the frame (301), the air inlet (302) is used for being connected with an air outlet pipeline of a vehicle air-conditioning system (6), the blades (303) are rotatably connected to the frame (301) through rotating shafts (3032), and the air inlet cavity is communicated with the air chamber through the rotating shafts (3032).

5. The vehicle heatsink module of claim 4, wherein:

the frame (301) is arranged corresponding to one end of the blade (303), the driving part (304) is arranged corresponding to the other end of the blade (303), and the blade (303) is connected to the driving part (304) through a driven shaft (3033).

6. A vehicle heat dissipation system, characterized by:

the vehicle heat dissipation module comprises the vehicle heat dissipation module arranged in a vehicle and further comprises a controller (5) arranged in the vehicle, and a vehicle air conditioning system (6) and a temperature detection unit which are connected with the controller (5);

the air inlet control component (3) is connected with an air outlet pipeline of the vehicle air conditioning system (6) through an air inlet pipe, the driving portion (304) is connected with the controller (5), and the temperature detection unit comprises a cooling liquid temperature sensor (9) used for detecting the temperature of cooling liquid in the vehicle power assembly and an environment temperature sensor (10) used for detecting the environment temperature outside the vehicle.

7. The vehicle heat dissipation system of claim 6, wherein:

and the air inlet pipe is connected with an air compression pump (8) connected with the controller (5) in series.

8. The vehicle heat dissipation system according to claim 6 or 7, characterized in that:

and an air flow control valve (7) connected with the controller (5) is connected in series on the air inlet pipe.

9. The vehicle heatsink module of claim 8, wherein:

and an air speed sensor (4) is arranged on the air outlet side of the radiator (1).

10. The control method of a vehicle heat dissipation system according to claim 9, characterized by comprising:

and controlling the vehicle air conditioning system (6) to start refrigeration according to the acquired temperature of the cooling liquid and the temperature of the environment outside the vehicle, controlling the driving part (304) to open the blades (303) according to a preset opening threshold value, and controlling the air flow control valve (7) to open according to a preset opening threshold value.

11. The control method of a vehicle heat dissipation system according to claim 10, characterized by further comprising:

in a parking state, the cooling fan (2) and the blades (303) are started, and wind speed signals of the wind speed sensors (4) are acquired;

and controlling the vehicle air conditioning system (6) to start according to the acquired wind speed signal, controlling the air flow control valve (7) to open, and purging the radiator (1).

12. The control method of a vehicle heat dissipation system according to claim 10, characterized in that:

the wind speed sensors (4) are regularly arranged, each blade (303) is divided into a plurality of blade groups which are arranged in one-to-one correspondence with the wind speed sensors (4), and the driving parts (304) are respectively arranged corresponding to each blade group;

the control method further comprises the following steps:

when the cooling fan (2) and the blades (303) are opened, acquiring wind speed signals of the wind speed sensors (4);

adjusting the opening degree of the blade group corresponding to each wind speed sensor (4) according to the wind speed signal of each wind speed sensor (4), wherein the wind speed signals of the wind speed sensors (4) are the same; alternatively, the first and second electrodes may be,

and adjusting the opening degree of the blade group corresponding to each wind speed sensor (4) according to the wind speed signal of each wind speed sensor (4) and a preset wind speed threshold value signal.

13. A vehicle, characterized in that:

the vehicle is provided with the vehicle heat dissipation system of any one of claims 6 to 9.