Vehicle active air inlet grille assembly with dynamic cooling mechanism

Abstract

The invention relates to the technical field of automobile grilles, in particular to an automotive active air-inlet grille assembly with a dynamic cooling mechanism, which comprises a grille frame and a plate mounting groove formed in the grille frame, an extension frame is mounted on the grille frame, a grid plate adjusting component is arranged in the plate mounting groove, a transmission component is mounted on the extension frame, and the transmission component is mounted on the extension frame. The grid plate motor drives the grid plate adjusting assembly through the transmission assembly. The grid plate adjusting assembly comprises a plurality of grid plates, a pressing plate, a large air bag, a head connecting plate and a tail connecting plate, and the large air bag communicates with the small air bag through a breather pipe; a grid plate motor is in transmission connection with a transmission assembly, so that the grid plate motor drives a cam and grid plates to rotate step by step, it is ensured that the grid plate motor firstly drives the cam to rotate, the cam presses a large air bag through a pressing plate, and after a small air bag expands to separate the connecting faces of the two adjacent grid plates, the grid plates are driven to rotate; the running resistance of the grid plate motor is reduced to the maximum extent, and the grid plate motor is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile grilles, and in particular to an active air intake grille assembly for a vehicle with a dynamic cooling mechanism. Background Art

[0002] The active grille assembly with dynamic cooling mechanism is an advanced automotive technology that optimizes the engine's cooling efficiency and aerodynamic performance by intelligently controlling the opening and closing state of the grille. This system is usually controlled by an electric motor and can automatically adjust the opening angle of the grille according to the vehicle's operating conditions to achieve the best cooling effect and reduce wind resistance. When the vehicle is driving at high speed, the active grille assembly can close the grille to reduce air flow into the engine compartment and reduce air resistance, thereby improving fuel economy and power. It can also improve engine noise when the vehicle is idling, and reduce wind resistance when the air conditioner is in cooling mode, providing warm air quickly even in cold winter.

[0003] In extremely cold weather conditions, after locking the car, the active air intake grille automatically closes. The grille separates the engine compartment from the outside world. The residual heat of the engine causes a temperature difference between the inside and outside of the active air intake grille. Under a large temperature difference, water droplets are easily condensed on the grille, causing freezing between the grille plates. If the grille is opened at this time, the running resistance of the motor is huge, which can easily cause the motor to overheat or even burn. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle active air intake grille assembly with a dynamic cooling mechanism to address the deficiencies of the prior art and solve the technical problems in the prior art.

[0005] The object of the present invention can be achieved by the following technical solutions: an active air intake grille assembly for a vehicle with a dynamic cooling mechanism, comprising a grille frame and a plate mounting slot provided on the grille frame, an extension frame installed on the grille frame, a grille plate adjustment assembly provided in the plate mounting slot, a transmission assembly installed on the extension frame, the transmission assembly connected to a grille plate motor, and the grille plate motor drives the grille plate adjustment assembly through the transmission assembly; The grid plate adjustment assembly includes a plurality of grid plates, a pressure plate and a large air bag installed therebetween. A first connecting plate and a tail connecting plate are respectively arranged at both ends of the grid plate. A mounting groove is provided on the first connecting plate. A small air bag is installed in the mounting groove. The large air bag is connected to the small air bag through a vent pipe. When the grid plate adjustment assembly is closed, the tail connection plates on two adjacent grid plates abut against the head connection plates.

[0006] As a further optimization or improvement of this solution, the transmission assembly includes a transmission box and an active part gear and a driven pinion installed therein, the grid plate motor is coaxially connected to the active part gear, a cam is coaxially installed on the active part gear, and the cam cooperates with the pressure plate transmission.

[0007] As a further optimization or improvement of the present solution, the driving part gear meshes with the driven pinion gear, and the driven pinion gear is coaxially connected to the grid plate.

[0008] As a further optimization or improvement of the present solution, a sealing gasket is installed on the tail connecting plate; when the grid plate adjustment assembly is closed, the first connecting plate presses the sealing gasket.

[0009] As a further optimization or improvement of the present solution, the pressure plate is installed on the large air bag, and the grid plate motor drives the active part gear and cam to rotate to drive the pressure plate to squeeze the large air bag.

[0010] As a further optimization or improvement of the present solution, a heat-insulating layer is provided at one end of the pressure plate close to the large air bag.

[0011] As a further optimization or improvement of the present solution, the large airbag and the small airbag are made of synthetic rubber and PVC fabric.

[0012] Beneficial effects of the present invention: (1) The present invention controls the active part gear and the cam to rotate coaxially through the grid plate motor, and then the cam rotates to press the pressure plate, so that the pressure plate presses the large air bag, and the gas inside the large air bag is transported to the small air bag through the vent pipe. At this time, the internal air pressure of the small air bag increases and expands, and the small air bag expands and stretches the connection surface between the two adjacent grid plates. When the connection surface between the tail plate and the head plate is stretched, the active part gear begins to mesh with the driven pinion gear, and the grid plate motor drives the grid plate to rotate through the active part gear and the driven pinion gear, so that the grid plate motor controls the rotation and adjustment of the grid plate.

[0013] Specifically, the grid motor and the transmission assembly are connected to each other so that the grid motor drives the cam and the grid plate to rotate in steps, ensuring that the grid motor first drives the cam to rotate, so that the cam presses the large air bag through the pressure plate. When the small air bag expands to separate the connecting surfaces of the two adjacent grid plates, it then drives the grid plate to rotate, thereby minimizing the running resistance of the grid motor and protecting the grid motor.

[0014] (2) When the vehicle is driving fast, if the sensor on the grille assembly detects that a pedestrian is approaching the vehicle, active braking is initiated. At the same time, the grille adjustment component is automatically closed, so that the gas inside the small airbag is pressed into the large airbag to ensure that the gas inside the large airbag is filled. If an accident occurs, the large airbag can act as a buffer for the pedestrian, reducing the impact force of the vehicle on the pedestrian, and protecting the pedestrian to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 Schematic diagram of the grid adjustment assembly installation structure.

[0019] Figure 4 for Figure 3 Schematic diagram of the structure of part A.

[0020] Figure 5 This is a schematic diagram of the air bag installation location.

[0021] Figure 6 for Figure 5 Schematic diagram of the structure of part B.

[0022] Figure 7 It is a schematic diagram of the overall structure of the transmission component.

[0023] Figure 8 This is the matching diagram of the active part gear and the driven pinion.

[0024] Fig. 9 This is an exploded view of the overall structure of the grid adjustment assembly.

[0025] The following are marked in the figure: 1. grille frame; 2. plate mounting groove; 3. grille adjustment assembly; 301. grille plate; 302. large air bag; 303. pressure plate; 304. ventilation pipe; 305. small air bag; 306. first connecting plate; 307. mounting groove; 308. tail connecting plate; 309. sealing gasket; 4. extension frame; 5. transmission assembly; 501. transmission box; 502. driving part gear; 503. driven small gear; 6. grille motor; 7. cam. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 9 , a vehicle active air intake grille assembly with a dynamic cooling mechanism, comprising a grille frame 1 and a plate mounting slot 2 provided on the grille frame 1, an extension frame 4 being installed on the grille frame 1, a grille plate adjustment component 3 being arranged in the plate mounting slot 2, a transmission component 5 being installed on the extension frame 4, the transmission component 5 being connected to a grille plate motor 6, and the grille plate motor 6 driving the grille plate adjustment component 3 through the transmission component 5; The grid plate adjustment assembly 3 includes a plurality of grid plates 301, a pressure plate 303 and a large air bag 302 installed therebetween. A first connecting plate 306 and a tail connecting plate 308 are respectively provided at both ends of the grid plate 301. A mounting groove 307 is provided on the first connecting plate 306. A small air bag 305 is installed in the mounting groove 307. The large air bag 302 is connected to the small air bag 305 through a vent pipe 304. When the grid plate adjustment assembly 3 is closed, the tail connection plates 308 on two adjacent grid plates 301 abut against the head connection plates 306 .

[0028] Specifically, the transmission assembly 5 includes a transmission box 501 and an active part gear 502 and a driven pinion 503 installed therein, the grid plate motor 6 is coaxially connected to the active part gear 502, and a cam 7 is coaxially installed on the active part gear 502, and the cam 7 is in transmission cooperation with the pressure plate 303.

[0029] Specifically, the driving partial gear 502 is meshed with the driven pinion 503 , and the driven pinion 503 is coaxially connected to the grid plate 301 .

[0030] It should be noted that in extremely cold weather conditions, the active air intake grilles are easily frozen together, which causes the resistance of the grille motor 6 to increase when controlling the rotation of the grille plate 301, and the motor is easily burned out.

[0031] Therefore, in order to further protect the grille motor, the active part gear 502 and the cam 7 are controlled to rotate coaxially through the grille motor 6, and then the cam 7 rotates to press the pressing plate 303, so that the pressing plate 303 presses the large air bag 302, and the internal gas of the large air bag 302 is transported to the small air bag 305 through the vent pipe 304. At this time, the internal gas pressure of the small air bag 305 increases and expands. Figure 6 , the small airbag 305 expands and stretches the connection surface between the two adjacent grid plates 301, that is, the connection surface between the tail plate 308 and the first plate 306. When the connection surface between the tail plate 308 and the first plate 306 is stretched, the driving part gear 502 begins to mesh with the driven pinion 503, and the grid plate motor 6 drives the grid plate 301 to rotate through the driving part gear 502 and the driven pinion 503, so that the grid plate motor 6 controls the rotation adjustment of the grid plate 301.

[0032] See also Figure 7-Figure 8Since the active part gear 502 is a partial tooth setting, at the beginning of the operation of the grid motor 6, the grid motor 6 only drives the cam 7 to rotate through the active part gear 502. At this time, the grid plate 301 is in a fixed state. After the cam 7 opens the connecting surface between two adjacent grid plates 301 by pressing the pressure plate 303 and the air bag 302, the active part gear 502 rotates and meshes with the driven pinion 503. At this time, the grid motor 6 drives the grid plate 301 to rotate through the active part gear 502 and the driven pinion 503, which greatly reduces the running resistance of the grid motor 6 and avoids the grid motor 6 from burning out due to its large resistance.

[0033] If the grid motor 6 drives the cam 7 and the grid plate 301 to rotate synchronously, when the cam 7 presses the pressure plate 303 and the air bag 302 to open the connecting surface between the two adjacent grid plates 301, the grid motor 6 synchronously drives the grid plates 301 to rotate. During this process, the connecting surface between the two adjacent grid plates 301 has not been completely separated, and the running resistance of the grid motor 6 will inevitably increase, and the grid motor 6 is still at risk of burning out.

[0034] It should be noted that the cam 7 and the pressure plate 303 are in line contact with each other and the contact area is small. Even if the cam 7 and the pressure plate 303 are frozen, the grid motor 6 can easily drive the cam 7 to rotate through the active part gear 502. At this time, the running resistance of the grid motor 6 can be ignored.

[0035] When the vehicle is driving fast, if the sensor on the grille assembly detects that a pedestrian is approaching the vehicle, active braking is initiated. At the same time, the grille adjustment component 3 is automatically closed, so that the internal gas of the small airbag 305 is pressed into the large airbag 302, ensuring that the internal gas of the large airbag 302 is in a filled state. If an accident occurs, the large airbag 302 can act as a buffer for the pedestrian, reduce the impact force of the vehicle on the pedestrian, and protect the pedestrian to a certain extent.

[0036] See also Figure 5-Figure 6 , a sealing gasket 309 is installed on the tail connecting plate 308 ; when the grid plate adjustment assembly 3 is closed, the first connecting plate 306 presses the sealing gasket 309 .

[0037] Specifically, the large airbag 302 and the small airbag 305 are made of synthetic rubber and PVC fabric.

[0038] Specifically, a heat-insulating layer is provided at one end of the pressure plate 303 close to the air bag 302 .

[0039] It should be noted that PVC fabric has excellent waterproof properties and synthetic rubber has high stability and durability.

[0040] When the grid adjustment assembly 3 is closed, see Figure 6, the tail connection plates 308 on the two adjacent grid plates 301 are in contact with the head connection plates 306, and at this time, the sealing pad 309 seals the small airbag 305 to prevent the small airbag 305 from freezing; the function of the insulation layer on the pressing plate 303 is also to prevent the large airbag 302 from freezing. To take a step back, even if the large airbag 302 and the small airbag 305 are frozen, the PVC fabric on the large airbag 302 and the small airbag 305 can isolate the thawed water outside the large airbag 302 and the small airbag 305, and at the same time, the synthetic rubber on the large airbag 302 and the small airbag 305 can ensure that the large airbag 302 and the small airbag 305 maintain their previous shapes, thereby increasing the service life of the large airbag 302 and the small airbag 305.

[0041] See also Figure 7 The pressure plate 303 is installed on the large air bag 302 , and the grid plate motor 6 drives the driving part gear 502 and the cam 7 to rotate and drive the pressure plate 303 to squeeze the large air bag 302 .

[0042] It should be noted that the present invention is connected through the transmission of the grid motor 6 and the transmission assembly 5, so that the grid motor 6 drives the cam 7 and the grid plate 301 to rotate in steps, ensuring that the grid motor 6 first drives the cam 7 to rotate, so that the cam 7 presses the large air bag 302 through the pressure plate 303, and when the small air bag 305 expands to separate the connecting surfaces of the two adjacent grid plates 301, it then drives the grid plate 301 to rotate, thereby minimizing the operating resistance of the grid motor 6 and protecting the grid motor 6.

[0043] The implementation principle of the present invention is as follows: when in use, the grid plate motor 6 is started, and the grid plate motor 6 controls the driving part gear 502 and the cam 7 to rotate coaxially, and then the cam 7 rotates to press the pressing plate 303, so that the pressing plate 303 presses the large air bag 302, and the gas inside the large air bag 302 is transported to the small air bag 305 through the vent pipe 304. At this time, the internal air pressure of the small air bag 305 increases and expands. Figure 6 , the small airbag 305 expands and stretches the connection surface between the two adjacent grid plates 301, that is, the connection surface between the tail plate 308 and the first plate 306. When the connection surface between the tail plate 308 and the first plate 306 is stretched, the driving part gear 502 begins to mesh with the driven pinion 503, and the grid plate motor 6 drives the grid plate 301 to rotate through the driving part gear 502 and the driven pinion 503, so that the grid plate motor 6 controls the rotation adjustment of the grid plate 301.

[0044] See also Figure 7-Figure 8Since the active part gear 502 is a partial tooth setting, at the beginning of the operation of the grid motor 6, the grid motor 6 only drives the cam 7 to rotate through the active part gear 502. At this time, the grid plate 301 is in a fixed state. After the cam 7 opens the connecting surface between two adjacent grid plates 301 by pressing the pressure plate 303 and the air bag 302, the active part gear 502 rotates and meshes with the driven pinion 503. At this time, the grid motor 6 drives the grid plate 301 to rotate through the active part gear 502 and the driven pinion 503, which greatly reduces the running resistance of the grid motor 6 and avoids the grid motor 6 from burning out due to its large resistance.

[0045] If the grid motor 6 drives the cam 7 and the grid plate 301 to rotate synchronously, when the cam 7 presses the pressure plate 303 and the air bag 302 to open the connecting surface between the two adjacent grid plates 301, the grid motor 6 synchronously drives the grid plates 301 to rotate. During this process, the connecting surface between the two adjacent grid plates 301 has not been completely separated, and the running resistance of the grid motor 6 will inevitably increase, and the grid motor 6 is still at risk of burning out.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A vehicle active air intake grille assembly with a dynamic cooling mechanism, characterized in that: The invention comprises a grid frame (1) and a plate mounting groove (2) provided on the grid frame (1); an extension frame (4) is installed on the grid frame (1); a grid plate adjustment component (3) is arranged in the plate mounting groove (2); a transmission component (5) is installed on the extension frame (4); the transmission component (5) is connected to a grid plate motor (6); and the grid plate motor (6) drives the grid plate adjustment component (3) through the transmission component (5); The grid plate adjustment assembly (3) comprises a plurality of grid plates (301), a pressure plate (303) and a large air bag (302) installed therebetween. A first connecting plate (306) and a second connecting plate (308) are respectively provided at both ends of the grid plate (301). A mounting groove (307) is provided on the first connecting plate (306). A small air bag (305) is installed in the mounting groove (307). The large air bag (302) is connected to the small air bag (305) via a vent pipe (304). When the grid plate adjustment assembly (3) is closed, the tail connection plates (308) on two adjacent grid plates (301) abut against the head connection plates (306).

2. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 1, characterized in that: The transmission assembly (5) comprises a transmission box (501) and a driving part gear (502) and a driven pinion gear (503) installed therein; the grid plate motor (6) is coaxially connected to the driving part gear (502); a cam (7) is coaxially installed on the driving part gear (502); and the cam (7) is in transmission cooperation with the pressure plate (303).

3. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 2, characterized in that: The driving part gear (502) meshes with the driven pinion gear (503), and the driven pinion gear (503) is coaxially connected to the grid plate (301).

4. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 1, characterized in that: A sealing gasket (309) is installed on the tail connection plate (308); when the grid plate adjustment assembly (3) is closed, the first connection plate (306) presses the sealing gasket (309).

5. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 1, characterized in that: The pressure plate (303) is mounted on the large air bag (302), and the grid plate motor (6) drives the driving part gear (502) and the cam (7) to rotate, thereby driving the pressure plate (303) to squeeze the large air bag (302).

6. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 1, characterized in that: A heat-insulating layer is provided at one end of the pressing plate (303) close to the large air bag (302).

7. The vehicle active air intake grille assembly with a dynamic cooling mechanism according to claim 1, characterized in that: The large airbag (302) and the small airbag (305) are made of synthetic rubber and PVC fabric.

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