Vehicle active grille assembly with dynamic cooling mechanism

Abstract

The application belongs to the technical field of automobile grille and particularly relates to a vehicle active air intake grille assembly with a dynamic cooling mechanism, which comprises a grille frame, an extension frame installed on the grille frame, a plate mounting groove formed in the grille frame, a grille plate adjusting assembly arranged in the plate mounting groove, a transmission assembly installed on the extension frame, and a grille plate motor driving the grille plate adjusting assembly through the transmission assembly. The grille plate adjusting assembly comprises a plurality of grille plates, a pressing plate, an air bag, a front connecting plate and a rear connecting plate, and the air bag is connected with the small air bag through an air pipe. The grille plate motor is step by step driven to rotate the cam and the grille plate through the transmission assembly and the transmission connection, so that the grille plate motor first drives the cam to rotate, the cam presses the air bag through the pressing plate, and then the grille plate is driven to rotate after the small air bag is inflated to separate the connecting surfaces of two adjacent grille plates, so that the running resistance of the grille plate motor is maximally reduced and the protection of the grille plate motor is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile grilles, specifically to a vehicle active air intake grille assembly with a dynamic cooling mechanism. BACKGROUND

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

[0003] In extremely cold weather conditions, the active air intake grille automatically closes after the vehicle is locked, isolating the engine compartment from the outside. The residual heat from the engine causes a temperature difference between the inside and outside of the active air intake grille. Under a large temperature difference, water droplets can easily condense on the grille, causing the grille plates to freeze. If the grille is opened at this time, the electric motor will have a large operating resistance, which can cause the motor to overheat and even burn out. SUMMARY

[0004] The present application aims to address the shortcomings of the prior art and provides a vehicle active air intake grille assembly with a dynamic cooling mechanism to solve the technical problems in the prior art.

[0005] The purpose of the present application can be achieved by the following technical solution: a vehicle active air intake grille assembly with a dynamic cooling mechanism, comprising a grille frame and a plate mounting groove formed in the grille frame, a prolongation frame mounted on the grille frame, a grille plate adjusting assembly arranged in the plate mounting groove, a transmission assembly mounted on the prolongation frame, a grille plate motor connected to the transmission assembly, and the grille plate motor driving the grille plate adjusting assembly through the transmission assembly.

[0006] The grille plate adjusting assembly includes a plurality of grille plates, a pressing plate, and an air bag mounted between them. The two ends of the grille plate are provided with a head plate and a tail plate, respectively. An installation groove is formed in the head plate, and a small air bag is installed in the installation groove. The air bag is connected to the small air bag through an air pipe.

[0007] When the grille plate adjusting assembly is closed, the tail plate and the head plate on the adjacent two grille plates abut.

[0008] As a further optimization or improvement of the present scheme, the transmission assembly comprises a transmission box and a driving part gear and a driven pinion installed in the transmission box, the grid plate motor is coaxially connected with the driving part gear, a cam is coaxially installed on the driving part gear, and the cam is in transmission cooperation with the pressing plate.

[0009] As a further optimization or improvement of the present scheme, the driving part gear is in mesh with the driven pinion, and the driven pinion is coaxially connected with the grid plate.

[0010] As a further optimization or improvement of the present scheme, a sealing gasket is installed on the tail connecting plate; when the grid plate adjusting assembly is closed, the head connecting plate presses the sealing gasket.

[0011] As a further optimization or improvement of the present scheme, the pressing plate is installed on the large air bag, and the pressing plate extrudes the large air bag by driving the driving part gear and the cam to rotate through the grid plate motor.

[0012] As a further optimization or improvement of the present scheme, the pressing plate is provided with a heat preservation layer close to one end of the large air bag.

[0013] As a further optimization or improvement of the present scheme, the large air bag and the small air bag adopt synthetic rubber and PVC fabric.

[0014] The present application has the following beneficial effects:

[0015] (1) The grid plate motor controls the coaxial rotation of the driving part gear and the cam, and then the cam presses the pressing plate to press the large air bag, so that the gas in the large air bag is transported to the small air bag through the air pipe, at this time, the gas pressure in the small air bag increases and expands, and the small air bag expands and separates the connecting surface between the two adjacent grid plates. When the connecting surface between the tail connecting plate and the head connecting plate is separated, the driving part gear starts to mesh with the driven pinion, and the grid plate motor drives the grid plate to rotate through the driving part gear and the driven pinion, so as to realize the rotation adjustment of the grid plate motor.

[0016] Specifically, the grid plate motor and the transmission assembly are in transmission connection, so that the grid plate motor drives the cam and the grid plate to rotate step by step, ensures that the grid plate motor drives the cam to rotate first, makes the cam press the large air bag through the pressing plate, and then drives the grid plate to rotate after the small air bag expands to separate the connecting surface between the two adjacent grid plates, so as to reduce the operation resistance of the grid plate motor to the maximum extent and realize the protection of the grid plate motor.

[0017] (2) In the process of rapid driving of the vehicle, if the sensor on the grid assembly detects that a pedestrian approaches the vehicle, the active brake is started, and at the same time, the grid plate adjusting assembly is automatically closed, so that the gas in the small air bag is pressed into the large air bag, and the gas in the large air bag is ensured to be in a full state. If an accident occurs, the large air bag can buffer the pedestrian, reduce the impact force of the vehicle on the pedestrian, and to a certain extent, protect the pedestrian. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the installation structure of the grid adjustment assembly.

[0022] Figure 4 for Figure 3 A schematic diagram of the structure of part A.

[0023] Figure 5 This is a schematic diagram showing the installation location of the airbag.

[0024] Figure 6 for Figure 5 A schematic diagram of the structure of part B.

[0025] Figure 7 This is a schematic diagram of the overall structure of the transmission assembly.

[0026] Figure 8 This is a diagram showing the fit between the driving gear and the driven pinion.

[0027] Figure 9 This is an exploded view of the overall structure of the grid adjustment assembly.

[0028] The following are labeled in the diagram: 1. Grille frame; 2. Mounting slot; 3. Grille adjustment assembly; 301. Grille plate; 302. Large air bladder; 303. Pressure plate; 304. Vent pipe; 305. Small air bladder; 306. First connecting plate; 307. Mounting slot; 308. Tail connecting plate; 309. Sealing gasket; 4. Extension frame; 5. Transmission assembly; 501. Transmission box; 502. Driving gear; 503. Driven pinion; 6. Grille motor; 7. Cam. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] See Figures 1-9The application discloses a vehicle active grille shutter assembly with a dynamic cooling mechanism, which comprises a grille frame 1, a plate mounting groove 2 formed in the grille frame 1, an extension frame 4 mounted on the grille frame 1, a grille plate adjusting assembly 3 arranged in the plate mounting groove 2, a transmission assembly 5 mounted on the extension frame 4, a grille plate motor 6 connected with the transmission assembly 5, and the grille plate motor 6 drives the grille plate adjusting assembly 3 through the transmission assembly 5.

[0031] The grille plate adjusting assembly 3 comprises a plurality of grille plates 301, a pressing plate 303 and an air bag 302 arranged between the grille plates 301 and the pressing plate 303, the two ends of each grille plate 301 are respectively provided with a front connecting plate 306 and a rear connecting plate 308, the front connecting plate 306 is provided with a mounting groove 307, a small air bag 305 is mounted in the mounting groove 307, and the air bag 302 is communicated with the small air bag 305 through an air pipe 304.

[0032] When the grille plate adjusting assembly 3 is closed, the rear connecting plate 308 and the front connecting plate 306 on the two adjacent grille plates 301 abut.

[0033] Specifically, the transmission assembly 5 comprises a transmission box 501, a driving part gear 502 and a driven pinion 503 mounted in the transmission box 501, the grille plate motor 6 is coaxially connected with the driving part gear 502, a cam 7 is coaxially mounted on the driving part gear 502, and the cam 7 is in transmission cooperation with the pressing plate 303.

[0034] Specifically, the driving part gear 502 is in mesh with the driven pinion 503, and the driven pinion 503 is coaxially connected with the grille plate 301.

[0035] It should be noted that in extremely cold weather conditions, the active grille shutters are prone to freeze together, which causes the resistance of the grille plate motor 6 to increase when the grille plate motor 6 controls the rotation of the grille plate 301, and the motor is prone to burn out.

[0036] Therefore, in order to further protect the grille motor, the driving part gear 502 and the cam 7 are coaxially rotated through the grille plate motor 6, then the pressing plate 303 is pressed by the rotation of the cam 7, the air in the air bag 302 is transported to the small air bag 305 through the air pipe 304, the air pressure in the small air bag 305 is increased and the small air bag 305 is expanded, and the connecting surface between the two adjacent grille plates 301, i.e. the connecting surface between the rear connecting plate 308 and the front connecting plate 306, is separated. Figure 6 When the connecting surface between the rear connecting plate 308 and the front connecting plate 306 is separated, the driving part gear 502 starts to mesh with the driven pinion 503, the grille plate motor 6 drives the grille plate 301 to rotate through the driving part gear 502 and the driven pinion 503, and the rotation of the grille plate 301 is adjusted through the grille plate motor 6.

[0037] Figures 7-8 ​Since the driving part gear 502 is provided with partial teeth, at the beginning of the operation of the grille motor 6, the grille motor 6 only drives the cam 7 to rotate through the driving part gear 502, at this time, the grille plate 301 is in a fixed state, when the cam 7 presses the pressing plate 303 and the air bag 302 to separate the connecting surface between the adjacent two grille plates 301, the driving part gear 502 rotates and engages with the driven pinion 503, at this time, the grille motor 6 drives the grille plate 301 to rotate through the driving part gear 502 and the driven pinion 503, which greatly reduces the operation resistance of the grille motor 6, and avoids the burning of the grille motor 6 caused by the large resistance.

[0038] If the grille motor 6 drives the cam 7 and the grille plate 301 to rotate synchronously, when the cam 7 presses the pressing plate 303 and the air bag 302 to separate the connecting surface between the adjacent two grille plates 301, the grille motor 6 drives the grille plate 301 to rotate synchronously, in this process, the connecting surface between the adjacent two grille plates 301 has not been completely separated, the operation resistance of the grille motor 6 inevitably increases, and the grille motor 6 still has the risk of burning.

[0039] It should be noted that the cam 7 and the pressing plate 303 are in line contact, and the contact area is small, even if the cam 7 and the pressing plate 303 are frozen, the grille motor 6 can easily drive the cam 7 to rotate through the driving part gear 502, at this time, the operation resistance of the grille motor 6 can be ignored.

[0040] In the process of rapid driving of the vehicle, when the sensor on the grille assembly detects that a pedestrian approaches the vehicle, the active brake is started, at the same time, the grille adjusting assembly 3 is automatically closed, so that the gas in the small air bag 305 is pressed into the air bag 302, to ensure that the gas in the air bag 302 is in a full state, if an accident occurs, the air bag 302 can buffer the pedestrian, reduce the impact force of the vehicle on the pedestrian, and to a certain extent, protect the pedestrian.

[0041] Referring to Figures 5-6 , the tail connecting plate 308 is provided with a sealing gasket 309; when the grille adjusting assembly 3 is closed, the first connecting plate 306 presses the sealing gasket 309.

[0042] Specifically, the air bag 302 and the small air bag 305 are made of synthetic rubber and PVC fabric.

[0043] Specifically, the pressing plate 303 is provided with a heat preservation layer close to one end of the air bag 302.

[0044] It should be noted that the PVC fabric has excellent waterproof performance, and the synthetic rubber has high stability and durability.

[0045] When the grille adjusting assembly 3 is closed, referring to Figure 6, the tail plate 308 on the two adjacent grid plates 301 contacts the head plate 306, at this time the sealing gasket 309 seals the small air bag 305 to avoid freezing of the small air bag 305; the role of the heat preservation layer on the pressing plate 303 is also to avoid freezing of the large air bag 302. To put it another way, even if the large air bag 302 and the small air bag 305 are frozen, the PVC fabric on the large air bag 302 and the small air bag 305 can isolate the frozen water outside the large air bag 302 and the small air bag 305, and at the same time, the synthetic rubber on the large air bag 302 and the small air bag 305 can ensure that the large air bag 302 and the small air bag 305 maintain the previous shape, thereby improving the service life of the large air bag 302 and the small air bag 305.

[0046] Referring to Figure 7 The pressing plate 303 is installed on the large air bag 302 and is driven to press the large air bag 302 by the driving part gear 502 and the cam 7 rotating under the drive of the grid plate motor 6.

[0047] It should be noted that the grid plate motor 6 is step-by-step connected to drive the cam 7 and the grid plate 301 through the transmission assembly 5, so that the grid plate motor 6 first drives the cam 7 to rotate, and the cam 7 presses the large air bag 302 through the pressing plate 303, and then drives the grid plate 301 to rotate after the connecting surface of the two adjacent grid plates 301 is separated by the expansion of the small air bag 305, thereby minimizing the operating resistance of the grid plate motor 6 and achieving protection of the grid plate motor 6.

[0048] The implementation principle of the present application is that: in use, the grid plate motor 6 is started, the grid plate motor 6 controls the coaxial rotation of the driving part gear 502 and the cam 7, and then the cam 7 is rotated to press the pressing plate 303, so that the pressing plate 303 presses the large air bag 302, and the gas in the large air bag 302 is delivered to the small air bag 305 through the air pipe 304, at this time the internal gas pressure of the small air bag 305 increases and expands, referring to Figure 6 The small air bag 305 expands and separates the connecting surface between the two adjacent grid plates 301, that is, the connecting surface between the tail plate 308 and the head plate 306. When the connecting surface between the tail plate 308 and the head plate 306 is separated, 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, thereby achieving rotation adjustment of the grid plate 301 controlled by the grid plate motor 6.

[0049] Referring to Figures 7-8Since the driving part gear 502 is provided with partial teeth, at the beginning of the operation of the shutter motor 6, the shutter motor 6 only drives the cam 7 to rotate through the driving part gear 502, at this time, the shutter plate 301 is in a fixed state, when the cam 7 separates the connecting surface between the adjacent two shutter plates 301 through the pressing plate 303 and the air bag 302, the driving part gear 502 rotates and engages with the driven pinion 503, at this time, the shutter motor 6 drives the shutter plate 301 to rotate through the driving part gear 502 and the driven pinion 503, which greatly reduces the operation resistance of the shutter motor 6, and avoids the burning of the shutter motor 6 caused by the large resistance.

[0050] If the shutter motor 6 drives the cam 7 and the shutter plate 301 to rotate synchronously, when the cam 7 separates the connecting surface between the adjacent two shutter plates 301 through the pressing plate 303 and the air bag 302, the shutter motor 6 drives the shutter plate 301 to rotate synchronously, in this process, the connecting surface between the adjacent two shutter plates 301 has not been completely separated, the operation resistance of the shutter motor 6 inevitably increases, and the shutter motor 6 still has the risk of burning.

[0051] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, the above embodiments and descriptions in the specification are only to illustrate the principle of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A vehicle active grille shutter assembly with dynamic cooling mechanism, characterized in that: The utility model provides a grid plate adjusting assembly and a transmission assembly, and the grid plate adjusting assembly is arranged in the plate mounting groove of the grid frame, and the transmission assembly is arranged on the extension frame and is connected with the grid plate motor, so that the grid plate adjusting assembly is driven to rotate by the grid plate motor through the transmission assembly. The grid plate adjusting assembly comprises a plurality of grid plates, a pressing plate and an air bag arranged between the grid plates, the two ends of each grid plate are provided with a front connecting plate and a rear connecting plate, the front connecting plate is provided with a mounting groove, a small air bag is arranged in the mounting groove, and the air bag is communicated with the small air bag through an air pipe. When the grid plate adjusting assembly is closed, the rear connecting plate of each adjacent grid plate abuts against the front connecting plate. The transmission assembly comprises a transmission box, a driving gear and a driven gear, the grid plate motor is coaxially connected with the driving gear, a cam is coaxially arranged on the driving gear, and the cam is in transmission cooperation with the pressing plate. The driving gear is in mesh with the driven gear, and the driven gear is coaxially connected with the grid plate.

2. The active grille shutter assembly with dynamic cooling mechanism for vehicle according to claim 1, characterized in that: A sealing gasket is arranged on the rear connecting plate, and the front connecting plate presses the sealing gasket when the grid plate adjusting assembly is closed.

3. The active grille shutter assembly with dynamic cooling mechanism for vehicle according to claim 1, characterized in that: The pressing plate is arranged on the air bag, and the pressing plate is pressed by the air bag when the driving gear and the cam are driven to rotate by the grid plate motor.

4. The active grille shutter assembly with dynamic cooling mechanism for vehicles of claim 1, wherein: The pressing plate is provided with a heat preservation layer near one end of the air bag.

5. The active grille shutter assembly with dynamic cooling mechanism for vehicles of claim 1, wherein: The air bag and the small air bag are made of synthetic rubber and PVC fabric.

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