Air guide system at front end of automobile

Abstract

The invention discloses an air guide system at the front end of an automobile. The air guide system comprises an air inlet pipe, a cabin decoration plate, a cabin cover plate, an upper air guide channel and an upper air guide plate body, an air inlet area is formed between the cabin decoration plate and the cabin cover plate, the air inlet pipe is connected to one end of the air inlet area, the upper air guide channel is connected to the other end of the air inlet area, and the upper air guide channel is connected between the cabin decoration plate and the upper air guide plate body. The air guide path from the upper air guide body to the upper air guide channel to the air inlet area to the air inlet pipe is formed, so that airflow of the lower air inlet grille can enter an air cylinder in an engine through the air guide path, the ventilation rate of a front-end heat dissipation module, the air inlet temperature and resistance of the engine are improved, and the crown water risk of the engine is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, and particularly relates to a front-end air guide system of an automobile. BACKGROUND

[0002] In the existing closed front face design of the front end of an automobile, the upper air inlet grille is cancelled, and only the lower air inlet grille is reserved. However, due to the cancellation of the upper air inlet grille, the air permeability of the front-end heat dissipation module of a hybrid automobile is reduced, and the engine air inlet temperature, resistance and crown water risk are increased.

[0003] Therefore, it is necessary to design a front-end air guide system of an automobile which can improve the air permeability of the front-end heat dissipation module, the engine air inlet temperature, resistance and crown water risk. SUMMARY

[0004] The present application aims at overcoming the deficiencies of the prior art, and providing a front-end air guide system of an automobile which can improve the air permeability of the front-end heat dissipation module, the engine air inlet temperature, resistance and crown water risk.

[0005] The technical scheme of the present application provides a front-end air guide system of an automobile, which comprises an air inlet pipe, a cabin trim panel, a cabin cover plate, an upper air guide channel and an upper air guide plate body.

[0006] The cabin trim panel and the cabin cover plate form an air inlet area, the air inlet pipe is connected to one end of the air inlet area, the upper air guide channel is connected to the other end of the air inlet area, and the upper air guide channel is connected between the cabin trim panel and the upper air guide plate body.

[0007] Further, the upper air guide channel comprises a channel body, an upper air vent and a lower air vent, the upper air vent is located at the upper end of the channel body, the lower air vent is located at the lower end of the channel body, at least two baffles are arranged on the inner wall of the channel body, the baffles are distributed at different heights of the inner wall of the channel body, and the adjacent layers of baffles are arranged in a staggered manner in the horizontal direction.

[0008] Further, the cross-sectional area of the upper end and the lower end of the channel body is greater than the cross-sectional area of the middle part of the channel body.

[0009] Further, the baffles comprise a lower baffle and an upper baffle, the lower baffle is located close to the lower air vent, the upper baffle is located close to the upper air vent, and an S-shaped air guide path is formed inside the channel body.

[0010] Further, a damper blade is arranged inside the channel body and is rotatably connected, and the damper blade is used to close or open the lower air vent.

[0011] Further, the motor is installed outside the channel body, and the motor is connected with the air door blade through a transmission rod.

[0012] Further, the nacelle cover plate and the nacelle trim plate are provided with a ring of adhesive tape, and the adhesive tape surrounds the air inlet area.

[0013] Further, the upper air guide plate body is provided with a vent hole, the upper air guide channel is installed on the upper air guide plate body, and the lower air inlet is connected with the vent hole.

[0014] Further, the nacelle cover plate and the nacelle trim plate are provided with a ring of adhesive tape, and the adhesive tape surrounds the air inlet area.

[0015] Further, the rear side of the upper air guide plate body is provided with a front end heat dissipation module.

[0016] After the above technical scheme is adopted, the following beneficial effects are achieved:

[0017] The present application forms a wind guide path from the upper air guide body-upper air guide channel-air inlet area-air inlet pipe, so that the air flow of the lower air inlet grille can enter the internal cylinder of the engine through the wind guide path, thereby improving the ventilation rate of the front end heat dissipation module, the engine air inlet temperature, the resistance and the risk of crown water. And the air inlet area is composed of the structure shape and the existing gap space of the nacelle trim plate and the nacelle cover plate, without the need for additional setting of an intermediate transition adapter air pipe, which improves the space influence on the nacelle height direction, avoids affecting the nacelle trim plate modeling, the nacelle cover plate structure, the pedestrian protection performance and the front end modeling, etc. BRIEF DESCRIPTION OF DRAWINGS

[0018] The disclosure will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the drawings:

[0019] Figure 1 is a schematic view of the automobile front end air guide system installed to the vehicle head in an embodiment of the present application;

[0020] Figure 2 is a schematic view of the automobile front end air guide system installed to the vehicle head in an embodiment of the present application;

[0021] Figure 3 is a schematic view of the automobile front end air guide system installed to the vehicle head in an embodiment of the present application;

[0022] Figure 4 is a schematic view of the automobile front end air guide system installed to the vehicle head in an embodiment of the present application;

[0023] Figure 5is a partial view of the front-end air guiding system of an automobile according to an embodiment of the present application;

[0024] Figure 6 is a view of the engine cover according to an embodiment of the present application;

[0025] Figure 7 is a view of the engine trim according to an embodiment of the present application;

[0026] Figure 8 is a view of the upper air guiding passage according to an embodiment of the present application; Figure 1 ;

[0027] Figure 9 is a view of the upper air guiding passage according to an embodiment of the present application; Figure 2 ;

[0028] Figure 10 is a view of the upper air guiding assembly according to another embodiment of the present application;

[0029] Figure 11 is an exploded view of the upper air guiding assembly according to another embodiment of the present application;

[0030] Figure 12 is a longitudinal sectional view of the upper air guiding assembly according to another embodiment of the present application;

[0031] Figure 13 is a perspective view of the upper air guiding passage according to an embodiment of the present application;

[0032] Figure 14 is a view of the air door blade and the motor in the first limit position according to an embodiment of the present application;

[0033] Figure 15 is a view of the air door blade and the motor in the second limit position according to an embodiment of the present application;

[0034] Figure 16 is a view of the motor and the passage body according to an embodiment of the present application;

[0035] Figure 17 is a view of the lower air vent in the closed position according to an embodiment of the present application;

[0036] Figure 18 is a view of the lower air vent in the open position according to an embodiment of the present application;

[0037] Figure 19 is a view of the air flow in the front-end air guiding system of an automobile according to an embodiment of the present application when the lower air vent is in the closed position;

[0038] Figure 20 is a view of the air flow in the front-end air guiding system of an automobile according to an embodiment of the present application when the lower air vent is in the open position.

[0039] Legend of reference signs:

[0040] Upper air guide channel 10:

[0041] Channel body 1, upper vent 2, lower vent 3;

[0042] Baffle 4: lower baffle 41, upper baffle 42;

[0043] Foam 5, preloaded clamping jaw 6, plug-in post 7;

[0044] Damper blade 8: transmission rod 81, rubber coating 82;

[0045] Motor 9: screw 91;

[0046] Upper air guide plate body 20: air vent 201;

[0047] Air inlet pipe 30, nacelle trim panel 40, nacelle cover plate 50, air inlet area 60, rubber strip 70, front end heat dissipation module 80, lower air inlet grille 90, water tank upper cross beam 100, front anti-collision beam 110, lower baffle bracket 120. DETAILED DESCRIPTION

[0048] The specific embodiments of the present application will be further described below in conjunction with the accompanying drawings.

[0049] It is easily understood that, according to the technical solution of the present application, a person skilled in the art can replace various structural modes and implementation modes with each other without changing the essential spirit of the present application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present application, and should not be considered as the whole or as a limitation or restriction on the technical solution of the present application.

[0050] In this specification, the orientation terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or possibly mentioned are defined with respect to the structure shown in the drawings, which are relative concepts, so they can be changed accordingly according to their different positions, different use states. Therefore, these or other orientation terms should not be interpreted as restrictive terms.

[0051] In some embodiments of the present application, as shown in Figure 1 and Figure 4 The automobile front end air guide system includes an air inlet pipe 30, a nacelle trim panel 40, a nacelle cover plate 50, an upper air guide channel 10 and an upper air guide plate body 20.

[0052] The nacelle trim panel 40 and the nacelle cover plate 50 form an air inlet area 60, the air inlet pipe 30 is connected to one end of the air inlet area 60, the upper air guide channel 10 is connected to the other end of the air inlet area 60, and the upper air guide channel 10 is connected between the nacelle trim panel 40 and the upper air guide plate body 20.

[0053] Specifically, as shown in Figure 1 The cabin trim panel 40 is located above the front end of the vehicle, and forms an air intake area 60 with the upper cabin cover panel 50 (see Figure 4 ) above it. This air intake area utilizes the structural shape of the cabin trim panel 40 and the cabin cover panel 50 and the existing gap space, and does not require an additional intermediate transition adapter air intake duct, improving the space impact on the height direction of the cabin, and avoiding affecting the cabin trim panel styling, cabin cover panel structure, pedestrian protection performance, and front end styling, etc.

[0054] The cabin trim panel 40 is provided with an air inlet 401 and an air outlet 402, the air inlet 401 serving as the air flow inlet of the air intake area 60, and the air outlet 402 serving as the air flow outlet of the air intake area 60. The air inlet 401 is connected to the upper air guide channel 10, and the air outlet 402 is connected to the air intake duct 30.

[0055] The air intake duct 30 extends rearward and is connected to the engine cylinder of the vehicle, for supplying air flow to the engine cylinder.

[0056] The upper air guide channel 10 extends downward and is connected to the upper air guide panel 20, which is located above the lower air intake grille 90.

[0057] As shown in Figure 20 , when the air flow enters the front end of the vehicle from the lower air intake grille 90, it flows upward to the upper air guide panel 20, then enters the upper air guide channel 10, and then enters the air intake area 60, and finally flows out of the air intake duct 30 and enters the engine cylinder.

[0058] Referring to the red arrows in Figure 4 , the direction of the air flow is shown. The embodiment forms an air guide path from the upper air guide body - the upper air guide channel - the air intake area - the air intake duct, so that the air flow from the lower air intake grille can enter the engine cylinder through the air guide path. Since the air flow from the lower air intake grille is relatively low in temperature, it is beneficial to reduce the engine intake temperature and intake resistance.

[0059] In addition, as shown in Figure 20 , during the process of the air flow flowing from the lower air intake grille 90 to the upper air guide panel 20, it will pass through the front end heat dissipation module 80, which is beneficial to improve the ventilation rate of the front end heat dissipation module 80.

[0060] Preferably, as shown in Figure 2 , the upper edge of the upper air guide panel 20 is fixedly connected to the upper cross beam 100 of the water tank by a plurality of buckles, and the lower edge of the upper air guide panel 20 is fixedly connected to the front bumper beam 110 by a plurality of buckles.

[0061] Further, as shown in Figure 3 and Figure 20As shown, the rear side of the upper air deflector body 20 is provided with a front end heat dissipation module 80.

[0062] Specifically, the front end heat dissipation module 80 extends downward from the rear side of the upper air deflector body 20 to the rear of the lower air inlet grille 90. After the airflow enters the interior of the vehicle head from the lower air inlet grille 90, it passes through the front end heat dissipation module 80 and then flows upward into the upper air deflector body 20. This airflow can improve the ventilation rate of the front end heat dissipation module 80.

[0063] Further, as shown, Figure 6 The cabin cover plate 50 and the cabin trim plate 40 are provided with a rubber strip 70, and the rubber strip 70 surrounds the air inlet area 60.

[0064] Specifically, the rubber strip 70 is located between the lower surface of the cabin cover plate 50 and the upper surface of the cabin trim plate 40, and the rubber strip 70 forms an air inlet area 60 between the cabin cover plate 50 and the cabin trim plate 40.

[0065] As shown, Figure 7 In addition, the cabin trim plate 40 is provided with an air inlet 401 and an air outlet 402, and the airflow enters the air inlet area 60 from the air inlet 401 and then flows out of the air outlet 402 and into the air inlet pipe 30.

[0066] Further, as shown, Figures 8-12 The upper air deflector channel 10 includes a channel body 1, an upper air vent 2, and a lower air vent 3. The upper air vent 2 is located at the upper end of the channel body 1, and the lower air vent 3 is located at the lower end of the channel body 1. The inner wall of the channel body 1 is provided with at least two baffles 4. The baffles 4 are distributed at different heights of the inner wall of the channel body 1, and adjacent layers of baffles 4 are arranged in a horizontal direction.

[0067] Specifically, as shown, Figures 8-9 The upper air deflector channel 10 includes a channel body 1, which is a hollow tubular structure. The upper air vent 2 is an opening at the upper end of the channel body 1, and the lower air vent 3 is an opening at the lower end of the channel body 1.

[0068] As shown, Figure 10 The lower air vent 3 is used to communicate with the upper air deflector body 20, and the upper air deflector body 20 guides the airflow at the lower air inlet grille into the upper air deflector channel 10.

[0069] The upper air vent 2 is used to communicate with the external air inlet pipe, guiding the airflow into the air inlet pipe, and the air inlet pipe guides the airflow into the internal cylinder of the engine of the vehicle.

[0070] And, the ventilation body 1 is arranged longitudinally in the vehicle, and the air flow passes through the front-end heat dissipation module 80 while passing through the upper air deflector body 20, the front-end heat dissipation module 80 heats the air flow, thereby generating hot air rising in the ventilation body 1, forming a negative pressure area in the longitudinal channel, and prompting cold air to be supplemented from the bottom, which is conducive to forming a continuous air flow flowing from bottom to top and accelerating the flow speed of the air flow.

[0071] Since the temperature of the air flow entering from the lower air inlet grille is low, even if the front-end heat dissipation module 80 heats the air flow, the temperature rise is relatively not obvious, which is conducive to reducing the engine intake air temperature.

[0072] As shown in Figure 12 , the inner wall of the channel body 1 is provided with two baffles 4, the baffles 4 are distributed at different heights of the inner wall of the channel body 1, and the adjacent layers of baffles 4 are arranged in a staggered manner in the horizontal direction. Figure 12 The middle red arrow indicates the flow direction of the air flow, the air flow enters the lower air outlet 3 from the upper air deflector body 20, and then flows into the channel body 1 from the lower air outlet 3. When the air flow passes through the first baffle 4, the flow direction of the air flow is changed by the first baffle 4, and the air flow flows towards the left side of Figure 12 ; then the air flow continues to flow upwards and meets the second baffle 4, the second baffle 4 changes the flow direction of the air flow again, so that the air flow flows towards the right side of Figure 12 , and finally flows out from the upper air outlet 2. Since the lower air inlet grille is low, it is easy to bring the ground water vapor; and after the upper air inlet grille is closed, the water vapor brought in is relatively easy to rise in the closed path. When the water vapor contacts the baffle 4, the baffle 4 can block the water vapor, thereby reducing the water vapor into the engine and reducing the risk of water crown.

[0073] Further, the cross-sectional area of the upper end and the lower end of the channel body 1 is greater than the cross-sectional area of the middle part of the channel body 1. The flow speed of the air flow passing through the channel body 1 can be accelerated, and the air intake efficiency, engine thermal efficiency and power output can be further improved.

[0074] Further, as shown in Figure 11 , the upper air deflector body 20 is provided with a ventilation hole 201, and the upper air deflector channel 10 is installed on the upper air deflector body 20, and the lower air outlet 3 is connected with the ventilation hole 201.

[0075] Further, as shown in Figure 9 , the edge of the upper air outlet 2 is connected with a circle of foam 5, and the edge of the lower air outlet 3 is connected with a circle of foam 5.

[0076] As shown in Figures 10-11As shown, the upper air guide channel 10 is installed above the upper air guide plate body 20, and the foam 5 at the edge of the lower air outlet 3 is compressed in the gap between the upper air guide channel 10 and the upper air guide plate body 20, thereby playing a sealing role, and the airflow can only enter the upper air guide channel 10 from the air vent 201 on the upper air guide plate body 20.

[0077] Further, as shown in the drawings, Figure 9 As shown, the lower air outlet 3 is provided with a pre-installed clamping jaw 6 and a plurality of plug-in columns 7.

[0078] The pre-installed clamping jaw 6 is used to be clamped on the upper air guide plate body 20 in advance to realize pre-installation. The plurality of plug-in columns 7 are arranged at intervals in a circle of the lower air outlet 3, and the plug-in columns 7 are inserted into the upper air guide plate body 20 and are heat plate welded with the upper air guide plate body 20 to complete the fixed connection.

[0079] Further, as shown in the drawings, Figure 12 As shown, the baffle 4 includes a lower baffle 41 and an upper baffle 42, the lower baffle 41 is located close to the lower air outlet 3, and the upper baffle 42 is located close to the upper air outlet 2, and the inside of the channel body 1 forms an S-shaped air guide path.

[0080] The lower baffle 41 is located above the lower air outlet 3, and the lower baffle 41 can block part of the water vapor in the airflow. After the airflow passes through the upper baffle 42, the upper baffle 42 further blocks part of the water vapor.

[0081] Preferably, more baffles 4 can be arranged inside the channel body 1, and the plurality of baffles 4 are distributed at different heights and are arranged in a staggered manner in the horizontal direction.

[0082] Further, as shown in the drawings, Figures 12-13 As shown, the channel body 1 further includes a damper blade 8, the damper blade 8 is installed inside the channel body 1 and is rotatably connected, and the damper blade 8 is used to close or open the lower air outlet 3.

[0083] Specifically, as shown in the drawings, Figure 13 As shown, the damper blade 8 is a long strip and is arranged in the horizontal direction inside the channel body 1, and the two ends of the damper blade 8 pass through the wall surface of the channel body 1 and are relatively rotatable.

[0084] As described above, Figure 17 When the damper blade 8 is rotated downward, the lower air outlet 3 is closed, and the airflow cannot enter the channel body 1.

[0085] As shown, Figure 18 When the damper blade 8 is rotated upward, the lower air outlet 3 is opened, and the airflow can enter the channel body 1.

[0086] In the hybrid car, when the engine is not working, the damper blade 8 can control the lower vent 3 to be closed, and the gas cannot enter the passage body 1. At this time, the engine is not working, and the engine intake is not needed. The airflow can directly flow to the front end heat dissipation module, improving the ventilation rate and heat dissipation effect.

[0087] When the engine is working, the damper blade 8 controls the lower vent 3 to be opened, and the gas enters the passage body 1 and then flows into the engine air inlet to supplement the engine air intake.

[0088] In addition, when it is detected that the water level below the vehicle exceeds the set height, in order to avoid the damage of water vapor to the engine, the damper blade 8 can also be controlled to close or partially close the lower vent 3 to avoid the water vapor entering the engine.

[0089] Further, as shown in Figure 15 , it also includes a motor 9, which is installed outside the passage body 1. The motor 9 is connected with the damper blade 8 through a transmission rod 81.

[0090] As shown in Figure 16 , the motor 9 is fixedly connected with the outer wall of the passage body 1 through two screws 91. The motor 9 drives the rotation of the damper blade 8 through the transmission rod 81.

[0091] As shown in Figure 17 , when the motor 9 rotates forward, it drives the damper blade 8 to rotate clockwise and opens the lower vent 3. As shown in Figure 20 , after the airflow enters from the lower air inlet grille 90, it passes through the front end heat dissipation module 80, enters the upper air guide channel 10 from the upper air guide plate body 20, then enters the air inlet area 60, and finally enters the air inlet pipe 40 and then enters the engine.

[0092] As shown in Figure 18 , when the motor 9 rotates reversely, it drives the damper blade 8 to rotate counterclockwise and closes the lower vent 3. As shown in Figure 19 , after the airflow enters from the lower air inlet grille 90, it passes through the front end heat dissipation module 80 and then flows into the upper air guide plate body 20. Since the damper blade 8 closes the lower vent 3, the airflow cannot enter the upper air guide channel 10.

[0093] Further, as shown in Figures 14-15 , the transmission rod 81 is provided with a first limiting piece 811 and a second limiting piece 812;

[0094] The first limiting piece 811 is used to limit the first limit position of the clockwise rotation of the transmission rod 81. At the first limit position, the damper blade 8 opens the lower vent 3 to the maximum;

[0095] The second limiting member 812 is used to limit the transmission rod 81 to a second extreme position of counterclockwise rotation. When at the second extreme position, the damper blade 8 closes the lower vent 3 .

[0096] Specifically, Figure 14 As shown, a rotating disk is provided at one end of the transmission rod 81 connected to the motor 9. The rotating disk has a notch formed therein, and a first stopper 811 is provided at one end of the notch. A first stopper 92 is provided on the housing of the corresponding motor 9. When the first stopper 811 rotates clockwise until it contacts the first stopper 92, the damper blade 8 is in the first limit position, and the lower vent 3 is fully opened.

[0097] like Figure 15 As shown, a second stopper 812 is provided at the other end of the notch, and a second gear 93 is provided on the housing of the corresponding motor 9. When the second stopper 812 rotates counterclockwise to contact the second gear 93, the damper blade 8 is in the second extreme position, and the lower vent 3 is completely closed.

[0098] Furthermore, if Figures 14-15 As shown, the end of the damper blade 8 is provided with a layer of rubber coating 82. The damper blade 8 is a long sheet structure, and the rubber coating 82 is wrapped around the long side of the damper blade 8. Figure 10 As shown, when the damper blade 8 rotates downward to close the lower vent 3, the rubber lagging 82 is sealed against the edge of the lower vent 3 to prevent air leakage.

[0099] The upper air duct 10 in this embodiment can direct the lower-temperature airflow from the lower air intake grille into the air intake area 60 formed by the cabin trim panel 40 and the cabin cover panel 50, and then replenish the engine air intake through the engine intake pipe 30, effectively reducing the engine intake temperature. At the same time, it can also reduce intake resistance. Furthermore, the baffle 4 blocks moisture from entering the engine, avoiding the risk of crown water. The upper air duct 10 can also accelerate the flow rate of the airflow, improving the intake efficiency. In addition, the damper blades 8 can also control the opening and closing of the lower vent 3 according to different operating conditions.

[0100] The above description is only the principle and preferred embodiment of the present invention. It should be noted that for those skilled in the art, several other variations can be made based on the principle of the present invention, which should also be considered as the scope of protection of the present invention.

Claims

1. A front-end air guide system for an automobile, characterized in that: It includes an air intake duct, a cabin trim panel, a cabin cover, an upper air guide channel and an upper air guide plate body; An air intake area is formed between the cabin trim and the cabin cover, the air intake pipe is connected to one end of the air intake area, the upper air guide channel is connected to the other end of the air intake area, and the upper air guide channel is connected between the cabin trim and the upper air guide plate body.

2. The automobile front end air guide system according to claim 1, characterized in that: The upper air guide channel includes a channel body, an upper vent and a lower vent. The upper vent is located at the upper end of the channel body, and the lower vent is located at the lower end of the channel body. The inner wall of the channel body is provided with at least two baffles, and the baffles are distributed at different heights on the inner wall of the channel body, and the baffles of adjacent layers are staggered in the horizontal direction.

3. The automobile front end air guide system according to claim 2, characterized in that: The cross-sectional areas of the upper end and the lower end of the channel body are larger than the cross-sectional area of ​​the middle portion of the channel body.

4. The automobile front end air guide system according to claim 2, characterized in that: The baffle includes a lower baffle and an upper baffle, the lower baffle is located near the lower vent, the upper baffle is located near the upper vent, and an S-shaped air guide path is formed inside the channel body.

5. The automobile front end air guide system according to claim 2, characterized in that: It also includes a damper blade, which is installed inside the channel body and is rotatably connected. The damper blade is used to close or open the lower vent.

6. The automobile front end air guide system according to claim 5, characterized in that: The utility model further comprises a motor, which is installed outside the channel body and is connected to the damper blade through a transmission rod.

7. The automobile front end air guide system according to claim 1, characterized in that: An air inlet and an air outlet are provided on the cabin trim panel, wherein the air inlet is connected to the upper air guide channel, and the air outlet is connected to the air inlet pipe.

8. The automobile front end air guide system according to claim 1, characterized in that: The upper air guide plate body is provided with a ventilation hole, the upper air guide channel is installed on the upper air guide plate body, and the lower vent is connected to the ventilation hole.

9. The automobile front end air guide system according to claim 1, characterized in that: A circle of rubber strips is provided between the cabin cover and the cabin trim panel, and the rubber strips surround the air intake area.

10. The automobile front end air guide system according to claim 1, characterized in that: A front end heat dissipation module is provided on the rear side of the upper air guide plate body.

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