An air intake grille actuator

Abstract

The utility model provides a kind of air intake grille executor, including shell assembly and the main PCB board, motor, gear transmission assembly and output gear installed in shell assembly;Two ends of the axial direction of output gear are both worn in shell assembly and are rotatably connected with shell assembly, and the pin of motor is welded fixed and electrically connected with main PCB board;Gear transmission assembly includes planetary gear set and worm;Output gear is transmission connection with the output end of planetary gear set, and worm is coaxially sleeved and fixed on the output shaft of motor, and the input end of planetary gear set is engaged with worm;Compared with the gear transmission assembly that multiple reduction gears in the traditional air intake grille executor are laid flat in the inside of shell assembly and are connected by step transmission, the utility model has smaller size, so as to be beneficial to the miniaturization design of air intake grille executor.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle air intake grille drive components, and more specifically, to an air intake grille actuator. Background Technology

[0002] A grille actuator is a device used to control the opening and closing of a car's grille. Currently, grille actuators on the market include a housing assembly, a main PCB board, a motor, a gear transmission assembly, and an output gear installed inside the housing assembly. Both ends of the output gear in the axial direction pass through the housing assembly and are rotatably connected to it. The motor's pins are soldered and fixed to the main PCB board and electrically connected. In addition, in the prior art, the aforementioned gear transmission assembly includes multiple reduction gears, which are laid flat inside the housing assembly and connected in a step-by-step transmission manner. Because multiple reduction gears are laid flat inside the housing assembly, the grille actuator has the disadvantage of large size, which is not conducive to the miniaturization design of the grille actuator. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an air intake grille actuator, which has a smaller size compared with the gear transmission assembly in the traditional air intake grille actuator, which consists of multiple reduction gears laid flat inside the housing assembly and connected in stages, thus facilitating the miniaturization design of the air intake grille actuator.

[0004] This utility model provides an air intake grille actuator, including a housing assembly and a main PCB board, a motor, a gear transmission assembly, and an output gear installed inside the housing assembly; both ends of the output gear in the axial direction are inserted into the housing assembly and rotatably connected to the housing assembly; the motor pins are soldered and fixed to the main PCB board and electrically connected; the gear transmission assembly includes a planetary gear set and a worm; the output gear is driven by the output end of the planetary gear set, the worm is coaxially sleeved and fixed on the output shaft of the motor, and the input end of the planetary gear set meshes with the worm.

[0005] By employing a planetary gear set as the gear transmission component for speed reduction and torque amplification, this invention achieves a smaller size compared to the gear transmission component in a traditional air intake grille actuator, which consists of multiple reduction gears laid flat inside the housing assembly and connected in stages, at the same reduction ratio. This facilitates the miniaturization design of the air intake grille actuator.

[0006] In one possible implementation, the planetary gear set includes a fixed gear ring, a worm gear, a planetary output gear, a central shaft, and at least three planetary gears. The fixed gear ring is connected inside the housing assembly. The central shaft coaxially passes through the fixed gear ring, with both ends of the central shaft connected to the housing assembly. All planetary gears are circumferentially evenly distributed and mesh with the inner side of the fixed gear ring. The worm gear and the planetary output gear are rotatably coaxially sleeved on the central shaft. The worm gear meshes with a worm. A first gear portion is coaxially disposed at the middle of the upper end of the worm gear. The first gear portion is inserted into the fixed gear ring and meshes with the inner side of all planetary gears. The lower end of the planetary output gear is provided with a corresponding insert rod for each planetary gear. Each insert rod is coaxially inserted into the corresponding planetary gear. Each planetary gear... In coordination with the corresponding insert rod rotation, a second gear section is coaxially arranged at the middle of the upper end of the planetary output wheel, and the second gear section meshes with the output gear. By adopting this planetary gear set, when the output shaft of the motor drives the worm to rotate, the worm can drive the worm wheel to rotate. At this time, under the meshing action of the first gear section and the planetary gear, and under the meshing action of the planetary gear and the fixed gear ring, the planetary gear can rotate on its own axis and revolve around the fixed gear ring in the circumferential direction. At this time, the planetary gear can drive the planetary output wheel to rotate, thereby enabling the planetary output wheel to drive the output gear to rotate. In addition, under the action of the planetary gear set, the purpose of deceleration and torque increase can be achieved. In addition, in this embodiment, four planetary gears are provided.

[0007] In one possible implementation, the planetary gear set further includes a cover plate; the cover plate is disposed below the fixed gear ring, and a screw corresponding to each insert rod is rotatably passed through the cover plate from bottom to top. The threaded portion of each screw is threadedly connected to the insert rod at the corresponding position to fasten the cover plate to the planetary output gear. All planetary gears are axially confined between the planetary output gear and the cover plate. Through the setting of the cover plate, the cover plate can provide reliable support for the planetary gears, and under the cooperation of the cover plate and the planetary output gear, the planetary gears can be axially confined in the fixed gear ring, and the planetary gears can be prevented from disengaging from the insert rods.

[0008] In one possible implementation, an annular step is provided on the inner sidewall of the upper end of the fixed gear ring, and an annular protrusion is provided on the outer peripheral wall of the planetary output wheel. The annular protrusion abuts against the annular step and rotates in cooperation with the annular step. By adopting this structure, the coaxiality of the planetary output wheel and the fixed gear ring can be guaranteed by the cooperation of the annular protrusion and the annular step, that is, the planetary output wheel can reliably and stably rotate relative to the fixed gear ring.

[0009] In one possible implementation, the air intake grille actuator further includes a transition PCB board, a Hall sensor, and a magnetic ring. The magnetic ring is coaxially fixed to the output shaft of the motor. The N and S poles of the magnetic ring are equally spaced and spaced apart along the circumferential direction of the magnetic ring. The transition PCB board is perpendicularly fixed to and electrically connected to the main PCB board. The Hall sensor is fixed to and electrically connected to the transition PCB board. The Hall sensor faces the magnetic ring along the axial direction of the magnetic ring and is clearance-fitted with the magnetic ring. In the above structure, there are two N poles and two S poles on the magnetic ring, which are equally spaced and spaced apart along the circumferential direction of the magnetic ring. When this invention is in use, when the output shaft of the motor drives the magnetic ring to rotate, the N and S poles on the magnetic ring will trigger the Hall sensor. Since the magnetic ring is coaxially fixed to the output shaft of the motor, the Hall sensor is triggered every [time / time] on the output shaft of the motor. With each rotation, the magnetic ring also rotates once. Since there are two N and two S poles in this embodiment, the Hall sensor can detect 2000 magnetic field changes when the motor's output shaft rotates 1000 times. The Hall sensor transmits this magnetic field change count to the ECU on the main PCB board, allowing the ECU to calculate the motor speed. Then, through the transmission ratio between the motor, gear transmission assembly, and output gear, the ECU can determine the number of rotations of the output gear, thereby obtaining or controlling the angle of the output gear. This enables precise control of the opening and closing of the vehicle's air intake grille and its opening degree. Furthermore, in the above structure, by vertically fixing and electrically connecting the adapter PCB board to the main PCB board, the utilization rate of the internal space of the housing assembly can be maximized, allowing the air intake grille actuator to meet the requirements of miniaturization.

[0010] In one possible implementation, the magnetic ring is sleeved on and tightly fitted to the output shaft of the motor. This structure ensures the magnetic ring is reliably secured to the motor's output shaft, and offers advantages such as easy assembly and high coaxiality. Furthermore, when the magnetic ring is sleeved and fixed to the motor's output shaft, the axial position of the magnetic ring relative to the motor's output shaft can be adjusted as needed. This allows the distance between the magnetic ring and the Hall sensor to be adjusted to a suitable level, ensuring that the magnetic ring reliably triggers the Hall sensor when rotated by the motor.

[0011] In one possible implementation, the main PCB board has a socket, and the upper end of the adapter PCB board is inserted into the socket. The pads located at the upper end of the adapter PCB board are soldered and electrically connected to the pads on the main PCB board. With this structure, after the upper end of the adapter PCB board is inserted into the socket on the main PCB board, and the pads located at the upper end of the adapter PCB board are soldered and fixed to the pads on the main PCB board, the adapter PCB board and the main PCB board are firmly fixed together, which can effectively prevent the adapter PCB board and the main PCB board from breaking. Due to the interlocking action of the adapter PCB board and the socket, when the pads on the adapter PCB board and the pads on the main PCB board are soldered, it can limit the movement of the adapter PCB board and the main PCB board, thereby facilitating the soldering and fixing of the adapter PCB board and the main PCB board.

[0012] In one possible implementation, a slot is provided on the inner bottom of the housing assembly, and the side of the adapter PCB board is inserted into the slot and engaged with the slot for positioning. With this structure, after the main PCB board, motor, and adapter PCB board are assembled into the housing assembly, the side of the adapter PCB board can be inserted into the slot, thereby enabling the positioning and positioning of the adapter PCB board. This further prevents the adapter PCB board from breaking off from the main PCB board, and the adapter PCB board can reliably support and position the Hall sensor. In addition, the engagement and positioning of the adapter PCB board with the slot facilitates the insertion and assembly of the adapter PCB board and the housing assembly.

[0013] In one possible implementation, the air intake grille actuator further includes a conductive pin, one end of which is welded and electrically connected to the main PCB board, and the other end of which extends into a terminal connector on the housing assembly. With this structure, under the action of the conductive pin, after the plug-in terminal located at the end of the vehicle wiring harness is plugged into the terminal connector, the other end of the conductive pin can achieve an electrical connection with the vehicle wiring harness, thus enabling the main PCB board to reliably achieve an electrical connection with the vehicle wiring harness.

[0014] In one possible implementation, shaft seals are fitted between both ends of the output gear in the axial direction and the housing assembly; by setting the shaft seals, dust and moisture can be prevented from entering the interior of the housing assembly through the gap between the output gear and the housing assembly, thereby extending the service life of the air intake grille actuator. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2This is an exploded three-dimensional structural diagram of the first part of this utility model;

[0017] Figure 3 This is an exploded perspective view of the second part of this utility model;

[0018] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 6 This is a three-dimensional exploded view of the first part of a planetary gear set.

[0021] Figure 7 This is an exploded three-dimensional structural diagram of the second part of the planetary gear set.

[0022] Figure 8 This is an exploded three-dimensional structural diagram of the third part of the planetary gear set.

[0023] Figure 9 This is a schematic diagram of the magnetic ring structure;

[0024] Figure 10 This is an exploded three-dimensional structural diagram of the third part of this utility model. Detailed Implementation

[0025] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0027] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] See Figure 1-10 As shown in the figure, this application discloses an air intake grille actuator, including a housing assembly 1 and a main PCB board 2, a motor 3, a gear transmission assembly 4, and an output gear 5 installed in the housing assembly 1; both ends of the output gear 5 in the axial direction are inserted into the housing assembly 1 and rotatably connected to the housing assembly 1; the pins of the motor 3 are welded and fixed to the main PCB board 2 and electrically connected; the gear transmission assembly 4 includes a planetary gear set 41 and a worm gear 42; the output gear 5 is connected to the output end of the planetary gear set 41 for transmission; the worm gear 42 is coaxially sleeved and fixed on the output shaft of the motor 3; and the input end of the planetary gear set 41 meshes with the worm gear 42.

[0030] The planetary gear set 41 includes a fixed gear ring 411, a worm gear 412, a planetary output gear 413, a central shaft 414, and at least three planetary gears 415. The fixed gear ring 411 is connected inside the housing assembly 1. The central shaft 414 is coaxially inserted in the fixed gear ring 411, and both ends of the central shaft 414 are connected to the housing assembly 1. All planetary gears 415 are evenly distributed circumferentially and mesh with the inner side of the fixed gear ring 411. The worm gear 412 and the planetary output gear 413 are rotatably coaxially sleeved on the central shaft 414. The worm gear 412 meshes with the worm 42. A first gear portion 4121 is coaxially provided in the middle of the upper end of the worm gear 412. The first gear portion 4121 is inserted into the fixed gear ring 411 and meshes with the inner side of all planetary gears 415. The lower end of the planetary output gear 413 is provided with a corresponding insert 4131 for each planetary gear 415. All 31 are coaxially inserted into the corresponding planetary gears 415. Each planetary gear 415 is rotatably engaged with the corresponding insert rod 4131. The upper middle part of the planetary output wheel 413 is coaxially provided with a second gear part 4132, which meshes with the output gear 5. By using this planetary gear set, when the output shaft of the motor drives the worm to rotate, the worm can drive the worm wheel to rotate. At this time, under the meshing action of the first gear part and the planetary gear, and under the meshing action of the planetary gear and the fixed gear ring, the planetary gear can rotate on its own axis and revolve around the fixed gear ring in the circumferential direction. At this time, the planetary gear can drive the planetary output wheel to rotate, thereby enabling the planetary output wheel to drive the output gear to rotate. In addition, under the action of the planetary gear set, the purpose of deceleration and torque increase can be achieved. In addition, in this embodiment, four planetary gears are provided.

[0031] The planetary gear set 41 also includes a cover plate 416; the cover plate 416 is disposed below the fixed gear ring 411, and a screw 417 corresponding to each insert rod 4131 is rotatably inserted through the cover plate 416 from bottom to top. The threaded part of each screw 417 is threadedly connected to the insert rod 4131 at the corresponding position to fasten the cover plate 416 to the planetary output gear 413. All planetary gears 415 are axially limited between the planetary output gear 413 and the cover plate 416. Through the setting of the cover plate, the cover plate can play a reliable supporting role for the planetary gears, and under the cooperation of the cover plate and the planetary output gear, the planetary gears can be axially limited in the fixed gear ring, and the planetary gears can be prevented from disengaging from the insert rods.

[0032] An annular step 4111 is provided on the inner side wall of the upper end of the fixed gear ring 411, and an annular protrusion 4133 is provided on the outer peripheral wall of the planetary output wheel 413. The annular protrusion 4133 abuts against the annular step 4111 and rotates in cooperation with the annular step 4111. By adopting this structure, the coaxiality of the planetary output wheel and the fixed gear ring can be guaranteed under the cooperation of the annular protrusion and the annular step, that is, the planetary output wheel can reliably and stably rotate relative to the fixed gear ring.

[0033] The air intake grille actuator also includes a converter PCB board 6, a Hall sensor 7, and a magnetic ring 8. The magnetic ring 8 is coaxially fixed on the output shaft of the motor 3. The N pole and S pole of the magnetic ring 8 are equally spaced and spaced apart along the circumferential direction of the magnetic ring 8. The converter PCB board 6 is perpendicularly fixed to the main PCB board 2 and electrically connected. The Hall sensor 7 is fixed on the converter PCB board 6 and electrically connected to the converter PCB board 6. The Hall sensor 7 faces the magnetic ring 8 along the axial direction of the magnetic ring 8 and is clearance-fitted with the magnetic ring 8. In the above structure, there are two N poles and two S poles on the magnetic ring. The two N poles and two S poles are equally spaced and spaced apart along the circumferential direction of the magnetic ring. When this utility model is in use, when the output shaft of the motor drives the magnetic ring to rotate, the N pole and S pole on the magnetic ring will trigger the Hall sensor. Since the magnetic ring is coaxially fixed on the output shaft of the motor, the magnetic ring will trigger the Hall sensor with each rotation of the output shaft of the motor. The ring also rotates once. Since there are two N poles and two S poles in this embodiment, when the output shaft of the motor rotates 1000 times, the Hall sensor can sense 2000 magnetic field changes. The Hall sensor can transmit the number of magnetic field changes to the ECU on the main PCB board. The ECU can then calculate the motor speed. By using the transmission ratio between the motor, the gear transmission assembly, and the output gear, the ECU can determine the number of rotations of the output gear, thereby obtaining or controlling the angle of the output gear. This enables precise control of the opening and closing of the air intake grille and its opening degree in the vehicle. In addition, the motor mentioned above is a brushed DC motor. Furthermore, in the above structure, by fixing the adapter PCB board vertically to the main PCB board and electrically connecting them, the utilization rate of the internal space of the housing assembly can be maximized, thereby enabling the air intake grille actuator to meet the requirements of miniaturization.

[0034] The magnetic ring 8 is sleeved on the output shaft of the motor 3 and tightly fitted to the output shaft of the motor 3. With this structure, the magnetic ring can be reliably fastened to the output shaft of the motor. This method has the advantages of convenient assembly of the magnetic ring and the output shaft of the motor and high coaxiality. In addition, when the magnetic ring is sleeved and fixed to the output shaft of the motor, the axial position of the magnetic ring relative to the output shaft of the motor can be adjusted as needed, so that the distance between the magnetic ring and the Hall sensor can be adjusted to a suitable state, so that the magnetic ring can reliably trigger the Hall sensor when it is driven to rotate by the motor.

[0035] The main PCB board 2 is provided with a socket 21. The upper end of the adapter PCB board 6 is inserted into the socket 21. The pads located at the upper end of the adapter PCB board 6 are soldered and fixed to the pads on the main PCB board and electrically connected. With this structure, after the upper end of the adapter PCB board is inserted into the socket on the main PCB board, and the pads located at the upper end of the adapter PCB board are soldered and fixed to the pads on the main PCB board, it has the advantage of high fixation between the adapter PCB board and the main PCB board, which can effectively prevent the adapter PCB board and the main PCB board from being broken. Due to the cooperation and insertion of the adapter PCB board and the socket, when the pads on the adapter PCB board are soldered to the pads on the main PCB board, it can limit the position of the adapter PCB board and the main PCB board, thereby facilitating the soldering and fixing of the adapter PCB board and the main PCB board.

[0036] A slot 11 is provided on the inner bottom of the housing assembly 1. The side of the adapter PCB board 6 is inserted into the slot 11 and is positioned and limited by the slot 11. With this structure, after the main PCB board, motor and adapter PCB board are assembled into the housing assembly, the side of the adapter PCB board can be inserted into the slot, thereby realizing the positioning and limiting of the adapter PCB board. This further avoids the situation where the adapter PCB board and the main PCB board are broken, and the adapter PCB board can reliably support and limit the Hall sensor. In addition, the positioning and limiting effect of the adapter PCB board and the slot makes it easier to insert and assemble the adapter PCB board and the housing assembly.

[0037] The air intake grille actuator also includes a conductive pin 9. One end of the conductive pin 9 is welded and fixed to the main PCB board 2 and electrically connected. The other end of the conductive pin 9 extends into the terminal plug interface 12 on the housing assembly 1. With this structure, under the action of the conductive pin, after the plug terminal located at the end of the vehicle wiring harness is plugged into the terminal plug interface, the other end of the conductive pin can achieve electrical connection with the vehicle wiring harness, so that the main PCB board can reliably achieve electrical connection with the vehicle wiring harness.

[0038] Both ends of the output gear 5 in the axial direction are fitted with shaft seals 10 between them and the housing assembly 1. By setting the shaft seals, the shaft seals can prevent dust and moisture from entering the interior of the housing assembly through the gap between the output gear and the housing assembly, thereby extending the service life of the air intake grille actuator.

[0039] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An air intake grille actuator, comprising a housing assembly (1) and a main PCB board (2), a motor (3), a gear transmission assembly (4), and an output gear (5) installed within the housing assembly (1); both ends of the output gear (5) in the axial direction are inserted into the housing assembly (1) and rotatably connected to the housing assembly (1); the pins of the motor (3) are welded and fixed to the main PCB board (2) and electrically connected; characterized in that: The gear transmission assembly (4) includes a planetary gear set (41) and a worm (42); the output gear (5) is connected to the output end of the planetary gear set (41), the worm (42) is coaxially sleeved and fixed on the output shaft of the motor (3), and the input end of the planetary gear set (41) meshes with the worm (42).

2. The intake grille actuator according to claim 1, characterized in that: The planetary gear set (41) includes a fixed gear ring (411), a worm gear (412), a planetary output gear (413), a central shaft (414), and at least three planetary gears (415). The fixed gear ring (411) is connected inside the housing assembly (1). The central shaft (414) is coaxially inserted in the fixed gear ring (411), and both ends of the central shaft (414) are connected to the housing assembly (1). All the planetary gears (415) are evenly distributed circumferentially and mesh with the inner side of the fixed gear ring (411). The worm gear (412) and the planetary output gear (413) are rotatably coaxially sleeved on the central shaft (414). The worm gear (412) meshes with the worm (42). (412) A first gear part (4121) is coaxially provided in the middle of the upper end. The first gear part (4121) is inserted into the fixed gear ring (411) and meshes with the inner side of all the planetary gears (415). The lower end of the planetary output wheel (413) is provided with a plug (4131) corresponding to each of the planetary gears (415). Each plug (4131) is coaxially inserted into the corresponding planetary gear (415). Each planetary gear (415) is rotatably engaged with the corresponding plug (4131). A second gear part (4132) is coaxially provided in the middle of the upper end of the planetary output wheel (413). The second gear part (4132) meshes with the output gear (5).

3. The intake grille actuator according to claim 2, characterized in that: The planetary gear set (41) also includes a cover plate (416); the cover plate (416) is disposed below the fixed gear ring (411), and a screw (417) corresponding to each of the insert rods (4131) is rotatably passed through the cover plate (416) from bottom to top. The threaded portion of each screw (417) is threadedly connected to the insert rod (4131) at the corresponding position to fasten the cover plate (416) to the planetary output gear (413). All the planetary gears (415) are axially limited between the planetary output gear (413) and the cover plate (416).

4. The air intake grille actuator according to claim 2 or 3, characterized in that: An annular step (4111) is provided on the inner side wall of the upper end of the fixed gear ring (411), and an annular protrusion (4133) is provided on the outer peripheral wall of the planetary output wheel (413). The annular protrusion (4133) abuts against the annular step (4111) and rotates in cooperation with the annular step (4111).

5. The intake grille actuator according to claim 1, characterized in that: The air intake grille actuator also includes a converter PCB board (6), a Hall sensor (7), and a magnetic ring (8); the magnetic ring (8) is coaxially fixed on the output shaft of the motor (3), and the N pole and S pole of the magnetic ring (8) are evenly spaced and distributed along the circumferential direction of the magnetic ring (8). The converter PCB board (6) is perpendicularly fixed to the main PCB board (2) and electrically connected. The Hall sensor (7) is fixed on the converter PCB board (6) and electrically connected to the converter PCB board (6). The Hall sensor (7) faces the magnetic ring (8) along the axial direction of the magnetic ring (8) and is clearance-fitted with the magnetic ring (8).

6. The intake grille actuator according to claim 5, characterized in that: The magnetic ring (8) is sleeved on the output shaft of the motor (3) and tightly fitted with the output shaft of the motor (3).

7. The intake grille actuator according to claim 5 or 6, characterized in that: The main PCB board (2) is provided with a socket (21), and the upper end of the adapter PCB board (6) is inserted into the socket (21). The pads located at the upper end of the adapter PCB board (6) are soldered and fixed to the pads located on the main PCB board and electrically connected.

8. The air intake grille actuator according to claim 7, characterized in that: A slot (11) is provided on the inner bottom of the housing assembly (1), and the side of the adapter PCB board (6) is inserted into the slot (11) and cooperates with the slot (11) for positioning.

9. The intake grille actuator according to claim 5, 6, or 8, characterized in that: The air intake grille actuator also includes a conductive pin (9), one end of which is welded and fixed to the main PCB board (2) and electrically connected, and the other end of which extends into the terminal plug interface (12) on the housing assembly (1).

10. The air intake grille actuator according to claim 1, characterized in that: Both ends of the output gear (5) in the axial direction are fitted with shaft seals (10) between them and the housing assembly (1).

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