CN110641273B - A vehicle active air intake grille - Google Patents

Abstract

The invention belongs to the technical field of automobiles, and particularly relates to an active air intake grille for a vehicle, which comprises an air guide cover, a first grille blade, a second grille blade, a flow disturbing device, a linear driving device, a water temperature sensor, a vehicle speed sensor and a controller, wherein an air guide channel penetrates through the air guide cover; the turbulence device comprises a rotating shaft and an electric power generation all-in-one machine, the rotating shaft is sequentially and fixedly provided with a plurality of air rows along the axial direction of the rotating shaft, the rotating shaft is rotatably arranged on the air guide cover, an output shaft of the electric power generation all-in-one machine is in transmission connection with one end of the rotating shaft, and the electric power generation all-in-one machine is electrically connected with a storage battery; first grid blade and second grid blade set gradually along wind-guiding passageway's vertical direction, have the air inlet clearance between first grid blade and the second grid blade, and the vortex device is located the rear of first grid blade and second grid blade, and the wind row is located the air inlet clearance, and linear drive device is used for driving two adjacent blade daughter boards and is close to or keeps away from its relative blade daughter board and removes, and its aperture of controlling this air-inlet grille.

Description

A vehicle active air intake grille

technical field

The invention belongs to the technical field of automobiles, and in particular relates to an active air intake grille for vehicles.

Background technique

The air intake grille is an important part of the front shape of the car, which affects the design style of the whole car, and is also the entrance for air to flow into the engine compartment of the car. It can be seen from the principle of aerodynamics that when the air enters the engine compartment of the car through the air intake grille, the airflow speed will decrease, resulting in the consumption of airflow kinetic energy and increasing the flow resistance of the airflow through the car. Backflow or blocking phenomena can also lead to increased air resistance in the car. In addition to air resistance, the air intake grille also has a great influence on the heat dissipation performance of the vehicle. Studies have shown that the air flowing through the air intake grille can take away 30% of the heat generated by the combustion of the engine during the driving process of the car. The engine compartment is maintained within a reasonable operating temperature range. With the development of the automobile industry, small models and low body have gradually become mainstream models, which makes the overall space in the engine compartment of the car small, and the relative placement of parts and components is compact, resulting in intercoolers, condensers, radiators, etc. in the engine compartment. The heat exchange performance of the heat exchanger deteriorates, and a larger front-end air intake grille is required to meet the cooling air requirements of the cooling system and air conditioning system. Larger air intake grilles usually mean an increase in air resistance, leading to fuel Decrease in economy.

As mentioned above, for the design of the air intake grille, the contradiction is mainly reflected in the following two aspects: on the one hand, the aerodynamic resistance is increased due to the consumption of aerodynamic energy; on the other hand, the heat exchange between the air and the cooling module reduces the The temperature of the engine improves the cabin environment. In order to meet the above two requirements, the active air intake grille has gradually entered the field of vision of engineers and applied to the whole vehicle, becoming an effective means to reduce fuel consumption.

At present, the mainstream active air intake grille in China is to control the air flow into the engine compartment by changing the opening angle of the grille, and adjust the temperature in the engine compartment while improving the vehicle wind resistance to obtain higher fuel economy. Under the premise of satisfying the heat dissipation conditions in the engine compartment, it is of great significance to further reduce the wind resistance of the vehicle and improve the energy utilization rate of the vehicle to improve the fuel economy. Based on this, the patent of the present invention proposes an active air intake grille for vehicles, which can convert wind energy into electric energy and store it while meeting the heat dissipation requirements of the vehicle, which reduces the energy consumption of the vehicle to the greatest extent and achieves the best performance of the vehicle. economic benefits.

SUMMARY OF THE INVENTION

In order to solve the problem in the prior art of how to further reduce the wind resistance of the vehicle, improve the energy utilization rate of the vehicle and improve the fuel economy under the premise of satisfying the heat dissipation conditions in the engine compartment, the present invention provides an active air intake grille for vehicles, On the one hand, the opening of the active air intake grille can be adjusted steplessly; on the other hand, the spoiler device is used to convert wind energy into electric energy and store it under the premise of satisfying the heat dissipation conditions in the engine compartment, so as to reduce the energy consumption of the car and achieve the the best economic benefits.

In order to solve the above technical problems, the technical solution adopted in the present invention is as follows, an active air intake grille for vehicles, comprising a wind guide cover, a first grille blade, a second grille blade, a spoiler device, a linear drive device, a water temperature sensor, a vehicle speed sensor and a controller, and an air guide channel runs through the air guide cover;

The turbulence device includes a rotating shaft and a motor-generator integrated machine. The rotating shaft is sequentially fixed with a number of air exhausts along its axial direction. The rotating shaft is rotatably arranged on the wind guide cover. One end of the motor-generator is connected with a drive, and the integrated motor-generator is electromechanically connected with a battery;

The first grill blade and the second grill blade have the same structure, and both include four blade sub-plates, and the four blade sub-plates are connected end-to-end in turn; the first and second grill blades It is arranged in the air guide hood in sequence along the vertical direction of the air guide channel, there is an air inlet gap between the first grille blade and the second grille blade, and the spoiler is located in the first grille blade and the second grille. Behind the grating blades, the rotating shafts are respectively parallel to the first and second grille blades, the air exhaust is located in the air inlet gap, and the linear drive device is used to drive two adjacent blade sub-plates Moves close to or away from the opposite vane sub-plate, which controls the opening of the air intake grill. When two adjacent vane sub-plates move close to their opposite vane sub-plates, the first The grille blade and the second grille blade approach each other until the air guide channel is closed;

The water temperature sensor is used to monitor the temperature of the engine, the vehicle speed sensor is used to monitor the speed of the vehicle, and the water temperature sensor, the vehicle speed sensor, the motor-generator and the linear drive are all electrically connected to the controller.

Preferably, the four blade sub-plates are connected in turn through a first connecting shaft, a second connecting shaft, a third connecting shaft and a fourth connecting shaft; the first connecting shaft is fixedly arranged on the air guide cover, and the The linear drive device is used to drive the third connecting shaft to slide close to or away from the first connecting shaft along the air guide passage. When the third connecting shaft slides close to the first connecting shaft, the first grille blade and the second grille The blades are close to each other until the air guide channel is closed.

Preferably, the cross-sections of the first grid vane and the second grid vane are both rhombus-shaped. The shape of the rhombus is changed by changing the length of the diagonal of the rhombus by the linear drive device, so as to achieve the purpose of changing the opening of the air intake grille and satisfy the infinitely adjustable opening of the air intake grille. The first grille blades and The second grille blade has a simple structure and is easy to control.

Preferably, the linear drive device includes a linear motor and a motor slide rail, the motor slide rail is fixed on the air guide cover, the linear motor slides linearly along the motor slide rail, and the output shaft of the linear motor is respectively connected to the first A grille blade is fixedly connected with the third connection shaft of the second grille blade, a chute is penetrated through the air guide cover, and the third connection shaft slides along the chute. The linear motor slides linearly along the motor slide rail, and at the same time drives the third connecting shaft to slide close to or away from the first connecting shaft along the air guide channel, so as to drive two adjacent blade sub-plates to move closer to or away from their opposite blade sub-plates, thereby controlling The opening of the air intake grille keeps it stable.

Further, the number of the air ducts is three groups, and the air ducts include several windward plates fixedly arranged around the circumference of the rotating shaft. The airflow flowing through the air intake grille blows the air exhaust, and the rotation of the air exhaust drives the output shaft of the integrated motor-generator to rotate, realizing the function of generating electricity in the generator mode, and realizing the conversion of wind energy to electric energy; The air flowing through the air intake grille can better promote the heat dissipation of the car engine; in addition, when the heat dissipation requirement of the car engine is low, when the rotation of the air exhaust is enough to reduce the temperature of the engine to a reasonable range, the air intake grille When the grille is closed, the motor-generator works in motor mode, which drives the rotation of the air exhaust to dissipate heat and cool the engine, which indirectly improves the fuel economy of the car; when the rotation of the air exhaust is not enough to meet the heat dissipation requirements of the engine, the controller will The vehicle speed signal and the water temperature signal of the car engine can adjust the opening of the air intake grill in real time to dissipate heat and cool the engine, so as to achieve the best combination of drag reduction and power generation, and improve fuel economy.

Further, the integrated motor-generator is fixedly arranged on the outer side of the wind guide hood.

Beneficial effects: In the vehicle active air intake grille of the present invention, the cross-sections of the first grille blade and the second grille blade are all rhombus-shaped, and the shape of the rhombus is changed by changing the length of the diagonal of the rhombus through the linear drive device, Therefore, the purpose of changing the opening degree of the air intake grille can be realized, and the infinitely adjustable opening degree of the air intake grille can be satisfied; in the active air intake grille for vehicles of the present invention, the air exhaust in the spoiler device is designed and installed in the first grid. The rear between the grille blade and the second grille blade ensures that the movement of the first grille blade and the second grille blade does not interfere with the rotation of the air exhaust. On the premise that the intake grille is infinitely adjustable, use The switch of the motor-generator mode can realize energy recovery when in generator mode; when the air intake grille is opened, the airflow flowing through the air intake grille drives the air exhaust to rotate, and drives the output shaft of the motor-generator to rotate. , at this time, the motor-generator works in generator mode, thereby generating electric energy and supplying the battery to realize energy recovery; in addition, when the airflow flows through the air exhaust, it will disturb the flow field in the engine compartment, and improve the heat dissipation effect of the engine. It can effectively reduce the opening time of the air intake grille, reduce the opening times of the air intake grille, and indirectly improve the economy of the car; when the air intake grille is closed and there is a cooling demand in the engine compartment, the motor generates electricity. The all-in-one machine works in electric motor mode, and uses the electric motor to drive the air exhaust to dissipate heat from the engine compartment, which can avoid the opening of the air intake grille, thereby reducing the wind resistance coefficient of the car and improving the fuel economy.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the active air intake grille for vehicle of the present invention;

FIG. 2 is a schematic diagram of the cooperation of the first grille vane and the second grille vane in FIG. 1;

Fig. 3 is another perspective three-dimensional structural schematic diagram of the vehicle active air intake grill of the present invention;

Fig. 4 is the three-dimensional exploded schematic diagram of the active air intake grille for vehicle of the present invention;

Fig. 5 is the working flow schematic diagram of the vehicle active air intake grill of the present invention;

In the figure: 1, air guide cover, 11, air guide channel, 12, chute, 2, first grille blade, 3, second grille blade, 31, blade sub-plate, 32, first connecting shaft, 33 , the second connecting shaft, 34, the third connecting shaft, 35, the fourth connecting shaft, 4, the air inlet gap, 5, the spoiler device, 51, the rotating shaft, 52, the motor-generator, 53, the air exhaust, 531, Windward plate, 6, linear drive device, 61, linear motor, 62, motor slide rail, 7, water temperature sensor, 8, vehicle speed sensor, 9, controller.

Detailed ways

Example

As shown in Figures 1 to 5, an active air intake grille for a vehicle includes a wind deflector 1, a first grille blade 2, a second grille blade 3, a spoiler 5, a linear drive device 6, and a water temperature sensor 7. The vehicle speed sensor 8 and the controller 9, the wind guide hood 1 has a wind guide channel 11 running through it;

As shown in FIG. 3 and FIG. 4 , the turbulence device 5 includes a rotating shaft 51 and an integrated motor-generator 52 . The rotating shaft 51 is sequentially fixed with a number of air exhausts 53 along its axial direction, and the number of the exhausted exhausts 53 is In three groups, the air exhaust 53 includes several windward plates 531 fixedly arranged around the circumference of the rotating shaft 51. The air exhaust 53 is fixed on the rotating shaft 51 by bolts or welding, and the rotating shaft 51 is rotatably arranged on the air guide hood 1. The integrated motor-generator 52 is fixedly arranged on the outer side of the wind guide hood 1 , the output shaft of the integrated motor-generator 52 is drivingly connected to one end of the rotating shaft 51 , and the integrated motor-generator 52 is electrically connected with a battery (not shown in the figure). indicate);

As shown in Figs. 1 to 4, the first grille vane 2 and the second grille vane 3 have the same structure, and both include four vane sub-plates 31, and the four vane sub-plates 31 are connected in turn in turn end-to-end; The first grille vane 2 and the second grille vane 3 are sequentially arranged in the wind guide hood 1 along the vertical direction of the air guide channel 11, and there is an inlet between the first grille vane 2 and the second grille vane 3. In the wind gap 4, the spoiler 5 is located behind the first grille vane 2 and the second grille vane 3, and the rotating shaft 51 is parallel to the first grille vane 2 and the second grille vane 3, respectively. The air exhaust 53 is located in the air inlet gap 4, and the linear drive device 6 is used to drive the two adjacent blade sub-plates 31 to move closer to or away from the opposite blade sub-plates 31, which controls the air intake grille When the two adjacent vane sub-plates 31 move close to their opposite vane sub-plates 31, the first grille vane 2 and the second grille vane 3 approach each other until the air guide channel is closed 11;

The water temperature sensor 7 is used to monitor the temperature of the engine, and the water temperature sensor 7 can be the water temperature sensor that comes with the car engine. The vehicle speed sensor 8 is used to monitor the speed of the vehicle. The water temperature sensor 7 , the vehicle speed sensor 8 , the motor-generator 52 and the linear drive device 6 are all electrically connected to the controller 9 .

As shown in FIGS. 1 to 4 , the four blade sub-plates 31 are connected in rotation through the first connecting shaft 32 , the second connecting shaft 33 , the third connecting shaft 34 and the fourth connecting shaft 35 in turn. The cross-sections of the blade 2 and the second grill blade 3 are both diamond-shaped; the first connecting shaft 32 is fixedly arranged on the air guide hood 1 , and the linear drive device 6 is used to drive the third connecting shaft 34 along the air guide channel 11 . Sliding close to or away from the first connecting shaft 32 , when the third connecting shaft 34 slides close to the first connecting shaft 32 , the first grille vane 2 and the second grille vane 3 approach each other until the air guide channel 11 is closed ;

As shown in FIG. 1 , FIG. 3 and FIG. 4 , the linear drive device 6 includes a linear motor 61 and a motor slide rail 62 . The motor slide rail 62 is fixed on the air guide hood 1 , and the linear motor 61 runs along the motor. The slide rail 62 slides in a straight line, the output shaft of the linear motor 61 is fixedly connected to the third connecting shaft 34 of the first grille blade 2 and the second grille blade 3 respectively, and the wind guide cover 1 has a chute 12 running through it. , the third connecting shaft 34 slides along the chute 12 .

As shown in Figure 5, the working process of the active air intake grille for the vehicle is as follows:

The controller 9 receives the engine water temperature signal from the water temperature sensor 7 and the vehicle speed signal from the vehicle speed sensor 8, and makes a judgment;

When it is detected that the water temperature is lower than A, the air intake grille will be in a fully closed state (that is, the first grille blade 2 and the second grille blade 3 will be close to each other to close the air guide channel 11 ), and the integrated motor-generator 52 will be in a fully closed state. Not working, in order to quickly increase the temperature of the engine;

When the water temperature is greater than or equal to A, and the vehicle speed is less than C, the opening of the air intake grille has little effect on the wind resistance at low speed. In order to maximize the power generation effect of the motor-generator 52, the controller 9 controls The linear motor 61 works, and the linear motor 61 drives the third connecting shaft 34 to slide along the air guide channel 11 away from the first connecting shaft 32 until the air intake grille is fully opened. At the maximum, the blowing wind row 53 rotates, thereby driving the output shaft of the motor-generator 52 to rotate, converting the wind energy into electric energy and storing it in the battery;

When the vehicle speed is greater than or equal to C, when it is detected that the water temperature is less than B and greater than D, where A<D<B, the air intake grille is in a fully closed state (that is, the first grille vane 2 and the second grille vane 3 are close to each other) The air guide channel 11) is closed, and the motor-generator 52 works in the motor mode at this time, which drives the rotation of the air exhaust 53, and disturbs the airflow to reduce the temperature in the engine compartment;

When the detected water temperature is greater than or equal to B, when only the rotation of the air exhaust 53 is not enough to reduce the temperature of the engine to a reasonable range, the controller 9 can real-time The linear motor 61 is controlled to drive the third connecting shaft 34 to slide close to or away from the first connecting shaft 32 along the air guide channel 11, so as to realize real-time adjustment of the opening of the air intake grille to dissipate heat and cool the engine. At this time, the integrated motor-generator 52 It works in the mode of a generator, and uses the airflow flowing through the air intake grille to blow the wind row 53 to rotate, and the rotation of the wind row 53 drives the output shaft of the motor-generator 52 to rotate, thereby converting the wind energy into electrical energy and storing it in the generator. in the battery.

Claims (3)

1. An active grille shutter for a vehicle, characterized in that: the wind-guiding device comprises a wind scooper (1), first grid blades (2), second grid blades (3), a turbulence device (5), a linear driving device (6), a water temperature sensor (7), a vehicle speed sensor (8) and a controller (9), wherein a wind-guiding channel (11) penetrates through the wind scooper (1);

the turbulence device (5) comprises a rotating shaft (51) and an electric power generation all-in-one machine (52), the rotating shaft (51) is sequentially and fixedly provided with a plurality of air rows (53) along the axial direction of the rotating shaft, the rotating shaft (51) is rotatably arranged on the air guide cover (1), an output shaft of the electric power generation all-in-one machine (52) is in transmission connection with one end of the rotating shaft (51), and the electric power generation all-in-one machine (52) is electrically connected with a storage battery;

the first grid blade (2) and the second grid blade (3) are identical in structure and respectively comprise four blade sub-plates (31), and the four blade sub-plates (31) are sequentially connected end to end in a rotating manner; the air guide cover is characterized in that the first grid blade (2) and the second grid blade (3) are sequentially arranged in the air guide cover (1) along the vertical direction of the air guide channel (11), an air inlet gap (4) is formed between the first grid blade (2) and the second grid blade (3), the turbulence device (5) is positioned behind the first grid blade (2) and the second grid blade (3), the rotating shaft (51) is respectively parallel to the first grid blade (2) and the second grid blade (3), the air row (53) is positioned in the air inlet gap (4), the linear driving device (6) is used for driving two adjacent blade sub-plates (31) to be close to or far away from the corresponding blade sub-plates (31) to move and controlling the opening degree of the air inlet grid, when the two adjacent blade sub-plates (31) are close to the corresponding blade sub-plates (31) to move, the first grid blade (2) and the second grid blade (3) are close to each other until the air guide channel (11) is closed;

the water temperature sensor (7) is used for monitoring the temperature of an engine, the vehicle speed sensor (8) is used for monitoring the speed of a vehicle, and the water temperature sensor (7), the vehicle speed sensor (8), the electric power generation all-in-one machine (52) and the linear driving device (6) are all electrically connected with the controller (9);

the four blade sub-plates (31) are connected with one another in a rotating mode through a first connecting shaft (32), a second connecting shaft (33), a third connecting shaft (34) and a fourth connecting shaft (35) in sequence; the first connecting shaft (32) is fixedly arranged on the air guide cover (1), the linear driving device (6) is used for driving the third connecting shaft (34) to approach or move away from the first connecting shaft (32) along the air guide channel (11) to slide, and when the third connecting shaft (34) approaches the first connecting shaft (32) to slide, the first grating blades (2) and the second grating blades (3) approach to each other until the air guide channel (11) is closed;

the cross sections of the first grating blade (2) and the second grating blade (3) are both rhombic;

the linear driving device (6) comprises a linear motor (61) and a motor sliding rail (62), the motor sliding rail (62) is fixedly arranged on the air guide cover (1), the linear motor (61) slides linearly along the motor sliding rail (62), an output shaft of the linear motor (61) is fixedly connected with third connecting shafts (34) of the first grid blades (2) and the second grid blades (3) respectively, a sliding groove (12) penetrates through the air guide cover (1), and the third connecting shafts (34) slide along the sliding groove (12).

2. The active grille shutter for a vehicle of claim 1, wherein: the number of the wind rows (53) is three, and the wind rows (53) comprise a plurality of windward plates (531) which are fixedly arranged around the circumferential direction of the rotating shaft (51).

3. The active grille shutter for a vehicle of claim 1, wherein: the electric power generation all-in-one machine (52) is fixedly arranged on the outer side of the air guide cover (1).

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