Single-motor-driven blade-synchronous split-opening active air intake grille

Abstract

The utility model relates to a kind of active air inlet grille, including frame, drive mechanism and the blade group of two sides;Blade group includes multiple rotation blades being arranged on frame in transverse parallel, and rotation action end being eccentric arranged on rotation blade;Parallelly arranged horizontal guide rail is on frame;Drive mechanism includes rotation driving part, and the active swing bar of transmission connection with rotation driving part, and the middle connecting rod and blade connecting rod of the shaft connection of active swing bar two ends in proper order;Blade connecting rod and the transmission connection of rotation action end of rotation blade;The end of middle connecting rod is slidably connected with horizontal guide rail and is equipped with connecting shaft, the end of blade connecting rod is equipped with trajectory slot, trajectory slot is inclined extension relative to horizontal guide rail, and connecting shaft is slidably connected with trajectory slot.Compared with prior art, the utility model can realize that one driving piece drives two blades synchronous opposite opening, and realizes the adjustment of system torque, satisfies the appearance requirement of differentiation and reduces the torque demand of motor.

Description

Technical Field

[0001] This utility model belongs to the field of automotive active air intake grille technology, and relates to an active air intake grille with blades that open synchronously with a single motor. Background Technology

[0002] With the implementation of energy conservation and emission reduction policies, vehicles are facing increasingly stringent requirements for fuel efficiency. In order to reduce fuel consumption, in addition to improving fuel ratios and reducing vehicle weight, OEMs are considering improving the aerodynamics of the vehicle to reduce wind resistance, thereby achieving the goals of fuel saving and emission reduction. The application of active grille shutters in vehicles is also becoming increasingly common.

[0003] Currently, most active air intake grilles on the market use blades that open in the same direction with a fixed rotating shaft, located in the middle of the grille frame. For example, CN113787902B discloses an active air intake grille with adjustable blade length, including a frame, several sets of blade assemblies, pressure rods for fixing the blades, connecting rods for connecting the blades, and a drive mechanism for controlling the movement of the blades. The blade assembly includes fixed blades and movable blades, with the movable blades placed inside the fixed blades and sliding relative to them. The frame includes a fixed frame and a movable frame that match the blades. The blade assemblies are connected to the fixed frame and the movable frame respectively. The drive mechanism is located on the fixed frame, and its output shaft is connected to the blades. The blade assemblies and the frame body have slots spaced apart, and the overlapping parts have limiting buckles. By dividing the frame and blade assemblies into fixed and movable parts, with the movable parts sliding laterally relative to the fixed parts, and limiting the frame and blade assemblies through the limiting buckles and slots, the length of the frame and blade assemblies can be adjusted, improving the versatility of the active air intake grille. However, this active air intake grille still suffers from complex structure and high production costs. Utility Model Content

[0004] The purpose of this invention is to provide an active air intake grille with blades that open synchronously in opposite directions driven by a single motor. This allows for the simultaneous opening of two blades by a single motor, and also enables the adjustment of the system torque to meet diverse appearance requirements and reduce the torque requirements of the motor.

[0005] The objective of this utility model can be achieved through the following technical solutions: The first aspect of this utility model provides an active air intake grille, including a frame, a drive mechanism, and blade groups disposed on both sides of the drive mechanism. The blade assembly includes multiple rotating blades arranged side by side in the transverse direction on the frame, and a rotating end eccentrically disposed on the rotating blade relative to the blade axis of rotation. The frame is provided with transverse guide rails arranged in parallel to the blade groups on both sides, and the transverse guide rails are parallel to the arrangement direction of the blade rotation axis. The driving mechanism includes a rotary driving component, an active rocker arm that is driven by the rotary driving component, and an intermediate connecting rod and a blade connecting rod that are sequentially shaft-connected to both ends of the active rocker arm; the blade connecting rod is driven by the rotating end of the rotating blade. One end of the intermediate connecting rod is slidably connected to the transverse guide rail and is provided with a connecting shaft. One end of the blade connecting rod is provided with a track groove, which extends at an inclination relative to the transverse guide rail. The connecting shaft is slidably connected to the track groove.

[0006] In some specific embodiments, the connecting shaft is a cylindrical shaft, and the track groove is an oblong groove with a width adapted to the connecting shaft. Compared to a rectangular hole, the oblong hole structure ensures effective sliding of the connecting shaft along the track groove while reducing processing difficulty and facilitating production.

[0007] In some specific embodiments, the transverse guide rail is a straight through hole extending laterally with a width adapted to the connecting shaft. The connecting shaft passes through the straight through hole and connects to the track groove to simultaneously realize the connection between the end of the intermediate connecting rod and the transverse guide rail and the blade connecting rod.

[0008] In some specific embodiments, the straight through hole is a waist-shaped hole.

[0009] In some specific embodiments, the rotating blade is rotatably mounted on the frame.

[0010] In some specific embodiments, the frame includes parallel assembly plates with assembly holes, and the blade shafts are respectively located at both ends of the rotating blade and rotatably inserted into the corresponding assembly holes.

[0011] In some specific embodiments, the blade shaft is arranged outside the frame, which significantly increases the intake volume.

[0012] In some specific embodiments, one end of the rotating blade is provided with an assembly cross plate, the rotating end is a rotating action hole opened in the assembly cross plate, and the blade connecting rod is provided with multiple movable insert shafts, which are inserted into the corresponding rotating action holes.

[0013] In some specific embodiments, the movable insert shaft and the cylindrical shaft, and the rotating action hole are cylindrical holes. Through the insertion and cooperation of the movable insert shaft and the rotating action hole, the lateral pushing force is transmitted, and the two are also allowed to rotate freely. This avoids interference between the translation of the rotating blade and the blade connecting rod, which would affect the movement of the two.

[0014] In some specific embodiments, the rotation drive is a rotary motor, and the active rocker arm is provided with an active rotating shaft, which is connected to the output shaft of the rotary motor.

[0015] In some specific embodiments, the active swing arm has cylindrical through holes at both ends, and one end of the intermediate connecting rod has a connecting shaft adapted to the cylindrical through holes.

[0016] The second aspect of this utility model provides an active air intake grille, including a frame, a drive mechanism, and blade groups disposed on both sides of the drive mechanism. The blade assembly includes multiple rotating blades arranged side by side in the transverse direction on the frame, and a rotating end eccentrically disposed on the rotating blade relative to the blade axis of rotation. The frame is provided with transverse guide rails arranged in parallel to the blade groups on both sides, and the transverse guide rails are parallel to the arrangement direction of the blade rotation axis. The driving mechanism includes a rotary drive component, a gear that is pulsatorically connected to the rotary drive component, a transmission rack that is parallel to both sides of the gear and meshes with the gear, and a blade connecting rod that is pulsatorically connected to the transmission rack; the blade connecting rod is pulsatorically connected to the rotating end of the rotating blade. One end of the transmission rack is slidably connected to the transverse guide rail and is provided with a connecting shaft. One end of the blade connecting rod is provided with a track groove, which extends at an inclination relative to the transverse guide rail. The connecting shaft is slidably connected to the track groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1) This utility model drives the active swing arm to rotate, and through the intermediate connecting rod, pushes or pulls the blade connecting rods on both sides outward or inward. Thus, through the eccentric connection between the blade connecting rod and the rotating blade, the rotating blade is driven to rotate, realizing the synchronous opening of the blades by a single motor, thereby regulating the intake volume and adjusting the torque of the entire motion system. 2) This utility model uses the insertion fit of shaft hole to realize the transmission connection between the intermediate connecting rod and the blade connecting rod, and the insertion hole at the connection is designed as an inclined sliding groove relative to the moving direction of the blade connecting rod to provide longitudinal movement margin. This avoids the problem that when the blade connecting rod is eccentric and drives multiple rotating blades to rotate, the rotating blades will push outward or pull inward along the radial direction of the blade connecting rod, which will interfere with the lateral movement of the blade connecting rod and prevent the rotating blades from rotating normally. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an active air intake grille according to the present invention; Figure 2 This is a schematic diagram of the rotating blade structure; Figure 3 This is a schematic diagram of the blade connecting rod structure; Figure 4 This is a schematic diagram of the active pendulum mechanism; Figure 5This is an assembly diagram of the transverse guide rail, intermediate connecting rod, and blade connecting rod; Figure 6 , Figure 7 This is a schematic diagram of the transmission structure of an active air intake grille in this utility model; Figure 8 This is a schematic diagram of the gear-rack transmission structure in Example 2; Explanation of markings in the diagram: 1-Frame, 2-Rotating blade, 3-Transverse guide rail, 4-Rotating drive component, 5-Active rocker arm, 6-Intermediate connecting rod, 7-Blade connecting rod, 8-Trajectory groove, 9-Modible insert shaft, 10-Active rotating shaft, 11-Cylindrical through hole, 12-Connecting shaft, 13-Rotating action hole, 14-Gear, 15-Transmission rack. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The following embodiments are based on the above-described technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0022] Example: like Figure 1 An active air intake grille is shown, including a frame 1, a drive mechanism, and blade groups disposed on both sides of the drive mechanism. The blade assembly includes multiple rotating blades 2 arranged side by side in the transverse direction on the frame 1, and a rotating end eccentrically disposed on the rotating blade 2 relative to the blade axis of rotation; The frame 1 is provided with transverse guide rails 3 in parallel, corresponding to the blade groups on both sides. The transverse guide rails 3 are parallel to the arrangement direction of the blade rotation axis. The drive mechanism includes a rotary drive component 4, an active rocker arm 5 that is driven by the rotary drive component 4, and an intermediate connecting rod 6 and a blade connecting rod 7 that are sequentially shaft-connected to both ends of the active rocker arm 5; the blade connecting rod 7 is driven by the rotating end of the rotating blade 2. One end of the intermediate connecting rod 6 is slidably connected to the transverse guide rail 3 and is provided with a connecting shaft 12, such as Figure 3 As shown, one end of the blade connecting rod 7 is provided with a track groove 8, which extends longitudinally, and the connecting shaft 12 is slidably connected to the track groove 8.

[0023] like Figure 6 and Figure 7 As shown, in this embodiment, the active swing arm 5 is driven to rotate, and the blade connecting rods 7 on both sides are pushed outward or pulled inward synchronously through the intermediate connecting rod 6. Thus, the blade connecting rod 7 is eccentrically connected to the rotating blade 2, thereby driving the rotating blade 2 to rotate. This achieves synchronous opening of the blades by a single motor, thereby regulating the intake volume and adjusting the torque of the entire motion system.

[0024] Meanwhile, this embodiment uses a shaft hole insertion fit to realize the transmission connection between the intermediate connecting rod 6 and the blade connecting rod 7. The insertion hole at the connection is designed as an inclined sliding groove relative to the moving direction of the blade connecting rod 7 to provide longitudinal movement margin, so that the connecting shaft 12 and the track groove 8 form a track-controlled motion group. This avoids the problem that when the blade connecting rod 7 is eccentrically driven to rotate multiple rotating blades 2, the rotating blades 2 will push the blade connecting rod 7 radially outward or pull it inward, which will interfere with the lateral movement of the blade connecting rod 7 and prevent the rotating blades 2 from rotating normally.

[0025] In some specific embodiments, the blade connecting rods 7 on both sides can be located on the same side relative to the blade axis arrangement line to achieve opposite rotation of the rotating blades 2 on both sides, or they can be located on opposite sides to achieve same rotation of the rotating blades 2 on both sides.

[0026] In some specific embodiments, the number of rotating blades 2 can be increased or decreased as needed.

[0027] In some specific embodiments, the form of the track groove can be adjusted according to the design track path requirements and ease of processing.

[0028] In some preferred embodiments, the connecting shaft 12 is a cylindrical shaft, and the track groove 8 is an oblong groove with a width adapted to the connecting shaft 12. Compared with a rectangular hole, the oblong hole structure not only ensures that the connecting shaft 12 slides effectively along the track groove 8, but also reduces the processing difficulty and facilitates production.

[0029] In some specific embodiments, the rotation drive 4 is connected to the center of the active swing arm 5. The rotating blades 2 on both sides, the transverse guide rail 3, the intermediate connecting rod 6, the blade connecting rod 7, and the track groove 8 are arranged symmetrically about the center. By designing two sets of structures symmetrical about the axis of the rotation drive 4, i.e. the active swing arm 5, on the frame, the motion synchronization when outputting power is further improved. In addition, the adjustability of the torque of the entire motion system is improved by adjusting the size of the active swing arm 5, the size of the connecting rod, and the structural size of the blade.

[0030] In some specific embodiments, such as Figure 5As shown, the transverse guide rail 3 is a straight through hole extending laterally and its width is adapted to the connecting shaft 12. The connecting shaft 12 passes through the straight through hole and connects to the track groove 8 to simultaneously realize the connection between the end of the intermediate connecting rod 6 and the transverse guide rail 3 and the blade connecting rod 7.

[0031] In some specific embodiments, the straight through hole is a waist-shaped hole.

[0032] In some specific embodiments, the rotating blade 2 is rotatably mounted on the frame 1. In other embodiments, it may also be mounted horizontally on the frame 1 as needed.

[0033] In some specific embodiments, the frame 1 includes parallel assembly plates with assembly holes, and blade shafts are respectively located at both ends of the rotating blade 2 and are rotatably inserted into the corresponding assembly holes.

[0034] In some specific embodiments, the blade shaft is arranged outside the frame 1, which significantly increases the intake volume.

[0035] In some specific embodiments, such as Figure 2 As shown, one end of the rotating blade 2 is provided with an assembly horizontal plate, and the rotating end is a rotating action hole 13 opened in the assembly horizontal plate. The blade connecting rod 7 is provided with multiple movable insert shafts 9, which are inserted into the corresponding rotating action holes 13.

[0036] In some specific embodiments, the movable insert shaft 9 and the cylindrical shaft, and the rotation action hole 13 are cylindrical holes. Through the insertion and cooperation of the movable insert shaft 9 and the rotation action hole 13, the lateral pushing force is transmitted, and the two can rotate freely, so as to avoid interference between the translation of the rotating blade 2 and the blade connecting rod 7, which would affect the movement of the two.

[0037] In some specific embodiments, the rotation drive 4 is a rotation motor, such as... Figure 4 As shown, the active rocker arm 5 is equipped with an active rotating shaft 10, which is connected to the output shaft of the rotating motor. More specifically, the active rotating shaft 10 can achieve the transmission connection through a conventional shaft connection structure such as a spline.

[0038] In some specific embodiments, the rotation drive 4 is fixed to the frame 1 by screws.

[0039] In some specific embodiments, the active swing arm 5 has cylindrical through holes 11 at both ends, and the middle connecting rod 6 has a connecting shaft 12 that is adapted to the cylindrical through holes at one end.

[0040] Example 2: In this embodiment, a gear replaces the active rocker arm 5, and a rack meshing with the gear replaces the intermediate connecting rod 6. The connecting shaft 12 is mounted on the rack to achieve reverse movement of the racks on both sides (see...). Figure 8 ).

[0041] Specifically, it includes frame 1, drive mechanism, and blade groups located on both sides of the drive mechanism; The blade assembly includes multiple rotating blades 2 arranged side by side in the transverse direction on the frame 1, and a rotating end eccentrically disposed on the rotating blade 2 relative to the blade axis of rotation; The frame 1 is provided with transverse guide rails 3 in parallel, corresponding to the blade groups on both sides. The transverse guide rails 3 are parallel to the arrangement direction of the blade rotation axis. The drive mechanism includes a rotary drive component 4, a gear 14 that is connected to the rotary drive component 4, a transmission rack 15 that is parallel to both sides of the gear 14 and meshes with the gear 14, and a blade connecting rod 7 that is connected to the transmission rack 15; the blade connecting rod 7 is connected to the rotating end of the rotating blade 2. One end of the transmission rack 15 is slidably connected to the transverse guide rail 3 and is provided with a connecting shaft 12. One end of the blade connecting rod 7 is provided with a track groove 8, which extends at an inclination relative to the transverse guide rail 3. The connecting shaft 12 is slidably connected to the track groove 8.

[0042] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. An active air intake grille, comprising a frame (1), a drive mechanism, and blade assemblies disposed on both sides of the drive mechanism; characterized in that, The blade assembly includes multiple rotating blades (2) arranged side by side in the transverse direction on the frame (1), and a rotating end eccentrically disposed on the rotating blade (2) relative to the blade axis of rotation; The frame (1) is provided with transverse guide rails (3) corresponding to the blade groups on both sides, and the transverse guide rails (3) are parallel to the arrangement direction of the blade rotation axis. The driving mechanism includes a rotating drive component (4), an active swing rod (5) that is connected to the rotating drive component (4) in a transmission manner, and an intermediate connecting rod (6) and a blade connecting rod (7) that are connected to the two ends of the active swing rod (5) in sequence by shafts; the blade connecting rod (7) is connected to the rotating end of the rotating blade (2) in a transmission manner. One end of the intermediate connecting rod (6) is slidably connected to the transverse guide rail (3) and is provided with a connecting shaft (12). One end of the blade connecting rod (7) is provided with a track groove (8). The track groove (8) extends obliquely relative to the transverse guide rail (3). The connecting shaft (12) is slidably connected to the track groove (8).

2. The active air intake grille according to claim 1, characterized in that, The rotation drive (4) is connected to the center of the active swing arm (5), and the rotating blades (2), transverse guide rails (3), intermediate connecting rods (6), blade connecting rods (7) and track grooves (8) on both sides are arranged symmetrically about the center.

3. The active air intake grille according to claim 1, characterized in that, The connecting shaft (12) is a cylindrical shaft, and the track groove (8) is a waist-shaped groove with a width that matches the connecting shaft (12).

4. The active air intake grille according to claim 1, characterized in that, The transverse guide rail (3) is a straight through hole extending laterally and its width is adapted to the connecting shaft (12). The connecting shaft (12) passes through the straight through hole and is connected to the track groove (8).

5. The active air intake grille according to claim 1, characterized in that, The rotating blade (2) is rotatably mounted on the frame (1).

6. The active air intake grille according to claim 5, characterized in that, The frame (1) includes parallel assembly plates with assembly holes. The blade shafts are respectively located at both ends of the rotating blade (2) and are rotatably inserted into the corresponding assembly holes.

7. The active air intake grille according to claim 1, characterized in that, One end of the rotating blade (2) is provided with an assembly horizontal plate, and the rotating end is a rotating action hole (13) opened in the assembly horizontal plate. The blade connecting rod (7) is provided with multiple movable insert shafts (9), and the movable insert shafts (9) are inserted into the corresponding rotating action holes (13).

8. The active air intake grille according to claim 1, characterized in that, The rotation drive (4) is a rotary motor, and the active swing arm (5) is provided with an active rotating shaft (10), which is connected to the output shaft of the rotary motor.

9. The active air intake grille according to claim 1, characterized in that, The active swing rod (5) has cylindrical through holes (11) at both ends, and the intermediate connecting rod (6) has a connecting shaft (12) that matches the cylindrical through holes at one end.

10. An active air intake grille, comprising a frame (1), a drive mechanism, and blade assemblies disposed on both sides of the drive mechanism; characterized in that, The blade assembly includes multiple rotating blades (2) arranged side by side in the transverse direction on the frame (1), and a rotating end eccentrically disposed on the rotating blade (2) relative to the blade axis of rotation; The frame (1) is provided with transverse guide rails (3) corresponding to the blade groups on both sides, and the transverse guide rails (3) are parallel to the arrangement direction of the blade rotation axis. The driving mechanism includes a rotating drive member (4), a gear (14) that is connected to the rotating drive member (4), a transmission rack (15) that is parallel to both sides of the gear (14) and meshes with the gear (14), and a blade connecting rod (7) that is connected to the transmission rack (15); the blade connecting rod (7) is connected to the rotating end of the rotating blade (2). One end of the transmission rack (15) is slidably connected to the transverse guide rail (3) and is provided with a connecting shaft (12). One end of the blade connecting rod (7) is provided with a track groove (8). The track groove (8) extends obliquely relative to the transverse guide rail (3). The connecting shaft (12) is slidably connected to the track groove (8).

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