grille actuator

Abstract

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 within 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 pins are soldered and fixed to the main PCB board and electrically connected. The output gear is connected to the output shaft of the motor via the gear transmission assembly. The air intake grille actuator also includes a converter 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 evenly spaced and distributed along the circumferential direction of the magnetic ring. The converter PCB board is perpendicularly fixed to the main PCB board and electrically connected. The Hall sensor is fixed to the converter PCB board and electrically connected to it. The Hall sensor faces the magnetic ring along its axial direction and is clearance-fitted with the magnetic ring. This utility model enables precise control of the opening and closing of the air intake grille and its opening degree in a vehicle.

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, commercially available grille actuators include a housing assembly, a PCB board, a motor, a gear transmission assembly, and an output gear, all housed within the housing assembly. Both ends of the output gear are axially inserted into and rotatably connected to the housing assembly. The motor's pins are soldered to and electrically connected to the PCB board. The output gear is connected to the motor's output shaft via the gear transmission assembly. When the motor's output shaft rotates, the motor drives the output gear to rotate via the gear transmission assembly, which in turn rotates the vehicle's grille to control its opening and closing. However, in existing technology, the number of rotations of the output gear is controlled based on the operating time of the PCB board-driven motor and the transmission ratio between the motor, gear transmission assembly, and output gear. This results in low control precision and makes it difficult to achieve accurate control of the grille's opening degree. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an air intake grille actuator that can accurately control the opening and closing of the air intake grille in a vehicle and the degree of opening.

[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 within 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 pins are welded and fixed to the main PCB board and electrically connected. The output gear is connected to the output shaft of the motor via the gear transmission assembly. The air intake grille actuator also includes an adapter 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 evenly spaced and distributed along the circumferential direction of the magnetic ring. The adapter PCB board is perpendicularly fixed to the main PCB board and electrically connected. The Hall sensor is fixed to the adapter PCB board and electrically connected to it. The Hall sensor faces the magnetic ring along the axial direction and is clearance-fitted with the magnetic ring.

[0005] By adopting the above-described structure, this invention, in conjunction with the magnetic ring and Hall sensor, allows the Hall sensor to detect changes in the magnetic field when the motor's output shaft drives the magnetic ring to rotate. The Hall sensor transmits the number of magnetic field changes to the ECU on the main PCB board, which then calculates the motor speed. 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, 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.

[0006] 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, offering 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 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.

[0007] 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.

[0008] 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 engaged with 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 with the housing assembly.

[0009] In one possible implementation, the air intake grille actuator further includes a conductive pin, one end of which is soldered 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. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is an exploded three-dimensional structural diagram of the first part of this utility model;

[0012] Figure 3 This is an exploded three-dimensional structural diagram of the second part of this utility model;

[0013] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle;

[0014] Figure 5 This is a schematic diagram of the magnetic ring structure;

[0015] Figure 6 This is an exploded three-dimensional structural diagram of the third part of this utility model. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] 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.

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] See Figure 1-6As shown in the embodiment of this application, an air intake grille actuator is disclosed, 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 pass through the housing assembly 1 and are rotatably connected to it. The pins of the motor 3 are welded and fixed to the main PCB board 2 and electrically connected. The output gear 5 is connected to the output shaft of the motor 3 via the gear transmission assembly 4. 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 to the output shaft of the motor 3. The N pole and S pole of the magnetic ring 8 are evenly spaced and intermittently 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 to the converter PCB board 6 and electrically connected to it. 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, the N pole and S pole on the magnetic ring are both provided with... Two N poles and two S poles are evenly spaced and distributed along the circumferential direction of the magnetic ring. In use, when the motor's output shaft drives the magnetic ring to rotate, the N and S poles on the magnetic ring trigger the Hall sensor. Since the magnetic ring is coaxially fixed to the motor's output shaft, it rotates once for every rotation of the motor's output shaft. Because there are two N and two S poles in this embodiment, the Hall sensor can detect 2000 magnetic field changes for every 1000 rotations of the motor's output shaft. The Hall sensor transmits the number of magnetic field changes to the ECU on the main PCB board. The ECU can then calculate the motor speed and, through the transmission ratio between the motor, gear transmission assembly, and output gear, 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, the aforementioned motor is a brushed DC motor.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] 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; the output gear (5) is connected to the output shaft of the motor (3) via the gear transmission assembly (4); 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).

2. The air intake grille actuator of claim 1, wherein: 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).

3. The air intake grille actuator of claim 1 or 2, wherein: 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.

4. The air intake grille actuator of claim 3, wherein: 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.

5. The grille shutter actuator of claim 1 or 2 or 4, wherein: 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).

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