Vehicle air conditioner air door actuator

Abstract

The utility model relates to the technical field of vehicle air conditioners, in particular to an air door actuator of a vehicle air conditioner. Comprising an upper shell and a lower shell, an inner cavity is formed between the upper shell and the lower shell, the inner cavity of the shell is divided into a first cavity and a second cavity, axial output shaft holes are formed in the portions, located in the first cavity, of the upper shell and the lower shell, a driving motor and a PCBA board are installed in the second cavity, the PCBA board is located above the driving motor, a reduction gear set is installed in the first cavity, and the reduction gear set is located above the PCBA board. The reduction gear set penetrates out of the output shaft hole. A fixing support is installed between the PCBA board and the driving motor. A rotor gear set is installed in the driving motor, penetrates through the PCBA board and is meshed with the reduction gear set. The internal space utilization rate of the air door actuator is improved, the internal structure of the air door actuator is more compact, the overall size is reduced, and then the installation occupied space is reduced. A fixing support is installed between the driving motor and the PCBA board so as to solve the problem that the driving motor interferes with a rotating shaft in the reduction gear set.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning technology, and in particular to an automotive air conditioning damper actuator. Background Technology

[0002] With the development of automotive intelligence, the HCVC system (Heating, Ventilation, and Air Conditioning) is also constantly being updated and improved. The HVAC system is a key component of the vehicle's interior environmental control system, responsible for regulating the temperature, humidity, and air quality inside the vehicle to ensure passenger comfort. The damper actuator, as a component controlling the opening and closing of the air conditioning damper and the airflow, has become particularly important. Its working principle is as follows: After the damper actuator is powered on, its internal motor rotates at high speed, driving the reduction gear set to rotate. The gears, through output torque and speed, drive the air conditioning damper connecting rod to rotate, thereby adjusting the opening and closing angle of the air conditioning damper.

[0003] Existing damper actuators mostly use a horizontally placed motor and a worm gear transmission method, which results in low transmission efficiency, low space utilization, increased sample size and installation space occupation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an air conditioning damper actuator for vehicles, in order to solve the problems existing in the prior art mentioned above.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a vehicle air conditioning damper actuator, including a housing, the housing is a split structure, including an upper housing and a lower housing, an inner cavity is formed between the upper housing and the lower housing, the inner cavity of the housing is divided into a first chamber and a second chamber, the upper housing and the lower housing located in the first chamber are provided with axial output shaft holes, a drive motor and a PCBA board are installed in the second chamber, the PCBA board is located above the drive motor, a reduction gear set is installed in the first chamber, and the reduction gear set is set through the output shaft hole;

[0006] A mounting bracket is installed between the PCBA board and the drive motor.

[0007] The drive motor is equipped with a rotor gear set, which passes through the PCBA board and meshes with the reduction gear set.

[0008] Furthermore, the reduction gear set includes a first reduction gear, a second reduction gear, a third reduction gear, and an output gear. The first reduction gear meshes with the drive gear and the second reduction gear in the rotor gear set, the second reduction gear meshes with the third reduction gear, the third reduction gear meshes with the output gear, and the output gear has an output shaft that extends out of an output shaft hole, and the output shaft has a shaft hole.

[0009] Furthermore, the first reduction gear, the second reduction gear, and the third reduction gear are all double gears.

[0010] Furthermore, the rotor gear set includes a drive gear and a rotor, the rotor being mounted on a drive motor, and the drive gear being assembled on the rotor.

[0011] Furthermore, the fixed bracket includes a fixed bracket plate, and both ends of the fixed bracket plate are provided with clearance holes for the drive motor to make way. A mounting shaft is installed on the lower plate of the fixed bracket plate. The mounting shaft passes through the PCBA board, and an output shaft mounting hole is provided on the mounting shaft along the axial direction. The shaft of the first reduction gear in the reduction gear set is inserted into the output shaft mounting hole.

[0012] Both ends of the fixed bracket plate are equipped with support feet and insertion posts. Insertion posts on the upper housing are inserted into the insertion post at one end, and insertion posts on the lower housing are inserted into the insertion post at the other end.

[0013] Furthermore, the lower end of the housing has a connector, and a connector for plugging into the PCBA board is installed in the connector.

[0014] Furthermore, the inner plate of the second chamber of the lower housing has a first mounting cavity, the bottom surface of the first mounting cavity is provided with a drive shaft, the rotor of the rotor gear set is inserted into the drive shaft, the drive motor is installed in the first mounting cavity, and the inner wall of the mounting cavity is provided with a number of first reinforcing ribs for positioning the drive motor.

[0015] Furthermore, the inner plate of the first chamber of the lower housing has a second mounting cavity with a gourd-shaped cross-section. The second mounting cavity is inclined. The output gear in the reduction gear set is installed at the large end of the second mounting cavity, and a second rotating shaft for mounting the third reduction gear is installed at the small end of the second mounting cavity.

[0016] A first rotating shaft for mounting a second reduction gear is installed on the inner wall of the lower housing. The first rotating shaft is located at the connection between the first chamber and the second chamber and is in close contact with the first mounting cavity.

[0017] Furthermore, several second reinforcing ribs are provided between the second mounting cavity and the output shaft hole.

[0018] Furthermore, buckles are installed on all four outer walls of the upper housing, and latches that engage with the buckles are provided on the four perimeter of the lower housing.

[0019] The outer peripheral wall of the upper housing is provided with several mounting holes. One mounting hole is located on one side of the upper housing, and the other mounting holes are located at the corners of the upper housing.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model improves the internal space utilization of the damper actuator, making the internal structure of the damper actuator more compact, reducing the overall volume, and thus reducing the space occupied during installation.

[0022] 2. A fixed bracket is installed between the drive motor and the PCBA board to solve the problem of interference between the drive motor and the shaft of the reduction gear set. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a utility model Figure 1 A structural diagram from another direction;

[0026] Figure 3 This is a schematic diagram of the structure of this utility model after the upper shell is opened;

[0027] Figure 4 This is an exploded view of this utility model;

[0028] Figure 5 This is a structural schematic diagram of the fixed bracket of this utility model;

[0029] Figure 6 This is a utility model Figure 5 A structural diagram from another direction;

[0030] In the diagram: 1. Housing, 11. Lower housing, 1a. First mounting cavity, 1b. Output shaft hole, 1c. Second mounting cavity, 12. Upper housing, 13. First reinforcing rib, 14. Drive shaft, 15. First rotating shaft, 16. Second rotating shaft, 17. Second reinforcing rib, 18. Mounting hole.

[0031] 2. Drive motor,

[0032] 3. Rotor gear set, 31. Rotor, 32. Drive gear,

[0033] 4. Fixed bracket; 42. Output shaft mounting hole; 43. Clearance hole; 44. Mounting shaft; 45. Support leg; 46. Insertion post; 47. Fixed bracket plate.

[0034] 5. Reduction gear set, 51. First reduction gear, 52. Second reduction gear, 53. Third reduction gear, 54. Output gear, 541. Output shaft, 542. Shaft hole,

[0035] 6. PCBA board, 7. Clip, 8. Tongue, 9. Connector, 10. Connector. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0037] like Figures 1-6 The vehicle air conditioning damper actuator shown includes a housing 1, which is a split structure, including an upper housing 12 and a lower housing 11. An inner cavity is formed between the upper housing 12 and the lower housing 11. The inner cavity of the housing 1 is divided into a first chamber and a second chamber. Both the upper housing 12 and the lower housing 11 in the first chamber are provided with axial output shaft holes 1b. A drive motor 2 and a PCBA board 6 are installed in the second chamber. The PCBA board 6 is located above the drive motor 2. A reduction gear set 5 is installed in the first chamber. The reduction gear set 5 is disposed through the output shaft hole 1b.

[0038] A mounting bracket 4 is installed between the PCBA board 6 and the drive motor 2;

[0039] The drive motor 2 is equipped with a rotor gear set 3, which passes through the PCBA board 6 and meshes with the reduction gear set 5.

[0040] like Figures 3-4 As shown, the reduction gear set 5 includes a first reduction gear 51, a second reduction gear 52, a third reduction gear 53, and an output gear 54. The first reduction gear 51 meshes with the drive gear 32 and the second reduction gear 52 in the rotor gear set 3, respectively. The second reduction gear 52 meshes with the third reduction gear 53, and the third reduction gear 53 meshes with the output gear 54. The output gear 54 has an output shaft 541, which extends out of the output shaft hole 1b, and the output shaft 541 is provided with a shaft hole 542.

[0041] like Figure 4 As shown, the first reduction gear 51, the second reduction gear 52, and the third reduction gear 53 are all double gears.

[0042] like Figure 3 As shown, the rotor gear set 3 includes a drive gear 32 and a rotor 31. The rotor 31 is mounted on the drive motor 2, and the drive gear 32 is assembled on the rotor 31.

[0043] like Figures 5-6As shown, the fixed bracket 4 is used to solve the problem of interference between the drive motor and the reduction gear set. It includes a fixed bracket plate 47. Both ends of the fixed bracket plate 47 are provided with clearance holes 43 for the drive motor 2 to make way. A mounting shaft 44 is installed on the lower plate of the fixed bracket plate 47. The mounting shaft 44 passes through the PCBA board 6. An output shaft mounting hole 42 is provided on the mounting shaft 44 along the axial direction. The shaft of the first reduction gear 51 in the reduction gear set 5 is inserted into the output shaft mounting hole 42.

[0044] Both ends of the fixed bracket plate are equipped with support feet 45 and insertion posts 46. Insertion posts 46 at one end are inserted into the insertion posts on the upper housing 12, and insertion posts 46 at the other end are inserted into the insertion posts on the lower housing 11.

[0045] like Figure 3 As shown, the lower end of the housing 1 has a connector 9, and a connector 10 that is plugged into the PCBA board 6 is installed in the connector 9.

[0046] like Figure 4 As shown, the inner plate of the second chamber of the lower housing 11 has a first mounting cavity 1a. The bottom surface of the first mounting cavity 1a is provided with a drive shaft 14. The rotor 31 in the rotor gear set 3 is inserted into the drive shaft 14. The drive motor 2 is installed in the first mounting cavity 1a. The inner wall of the mounting cavity 1a is provided with a plurality of first reinforcing ribs 13 for positioning the drive motor 2.

[0047] like Figure 4 As shown, the inner plate of the first chamber of the lower housing 11 has a second mounting cavity 1c with a gourd-shaped cross-section. The second mounting cavity 1c is inclined. The output gear 54 in the reduction gear set 5 is installed at the large end of the second mounting cavity 1c, and the small end of the second mounting cavity 1c is equipped with a second rotating shaft 16 for mounting the third reduction gear 53.

[0048] A first rotating shaft 15 for mounting the second reduction gear 52 is installed on the inner wall of the lower housing 11. The first rotating shaft 15 is located at the connection between the first chamber and the second chamber and is close to the first mounting cavity 1a, thereby making reasonable use of the inner cavity of the housing 1 and improving the utilization rate of the inner cavity.

[0049] like Figure 4 As shown, a number of second reinforcing ribs 17 are provided between the second mounting cavity 1c and the output shaft hole 1b to strengthen the strength between the second mounting cavity 1c and the output shaft hole 1b.

[0050] The upper housing 12 is equipped with buckles 7 on all four outer walls, and the lower housing 11 is provided with latches 8 that cooperate with the buckles 7 at all four periphery, so as to facilitate the installation and maintenance of the upper and lower housings.

[0051] The outer peripheral wall of the upper housing 12 is provided with several mounting holes 18. One mounting hole 18 is located on one side of the upper housing 12, and the other mounting holes 18 are located at the corners of the upper housing 12.

[0052] Work process:

[0053] When the drive motor 2 is powered on, the rotor 31 in the rotor gear set 31 drives the drive gear 32 in the rotor gear set 31 on the drive shaft 14 to rotate. The drive gear 31 drives the first reduction gear 51, the second reduction gear 52, and the third reduction gear 53 in the reduction gear set 5 to rotate. The third reduction gear 53 drives the output gear 54 to rotate. The output gear 54 drives the output shaft to rotate through the output shaft hole 1b, thereby controlling the opening and closing of the damper.

[0054] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A vehicle air conditioning damper actuator, characterized in that: Includes a housing (1), which is a split structure, including an upper housing (12) and a lower housing (11). An inner cavity is formed between the upper housing (12) and the lower housing (11). The inner cavity of the housing (1) is divided into a first chamber and a second chamber. The upper housing (12) and the lower housing (11) located in the first chamber are provided with axial output shaft holes (1b). The second chamber is equipped with a drive motor (2) and a PCBA board (6). The PCBA board (6) is located above the drive motor (2). The first chamber is equipped with a reduction gear set (5), which passes through the output shaft hole (1b). A fixing bracket (4) is installed between the PCBA board (6) and the drive motor (2); The drive motor (2) is equipped with a rotor gear set (3), which passes through the PCBA board (6) and meshes with the reduction gear set (5).

2. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The reduction gear set (5) includes a first reduction gear (51), a second reduction gear (52), a third reduction gear (53), and an output gear (54). The first reduction gear (51) meshes with the drive gear (32) and the second reduction gear (52) in the rotor gear set (3). The second reduction gear (52) meshes with the third reduction gear (53). The third reduction gear (53) meshes with the output gear (54). The output gear (54) has an output shaft (541) that extends out of the output shaft hole (1b) and has a shaft hole (542) in it.

3. The vehicle air conditioning damper actuator according to claim 2, characterized in that: The first reduction gear (51), the second reduction gear (52), and the third reduction gear (53) are all double gears.

4. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The rotor gear set (3) includes a drive gear (32) and a rotor (31). The rotor (31) is mounted on a drive motor (2), and the drive gear (32) is mounted on the rotor (31).

5. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The fixed bracket (4) includes a fixed bracket plate (47). Both ends of the fixed bracket plate (47) are provided with clearance holes (43) for the drive motor (2) to make way. An installation shaft (44) is installed on the lower plate of the fixed bracket plate (47). The installation shaft (44) passes through the PCBA board (6). An output shaft installation hole (42) is provided on the installation shaft (44) along the axial direction. The shaft of the first reduction gear (51) in the reduction gear set (5) is inserted into the output shaft installation hole (42). Both ends of the fixed bracket plate are equipped with support feet (45) and insertion posts (46). Insertion posts on the upper housing (12) are inserted into the insertion post (46) at one end, and insertion posts on the lower housing (11) are inserted into the insertion post (46) at the other end.

6. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The lower end of the housing (1) has a connector (9), and a connector (10) for plugging into the PCBA board (6) is installed in the connector (9).

7. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The second chamber of the lower housing (11) has a first mounting cavity (1a) on its inner plate surface. A drive shaft (14) is provided on the bottom surface of the first mounting cavity (1a). The rotor (31) in the rotor gear set (3) is inserted into the drive shaft (14). The drive motor (2) is installed in the first mounting cavity (1a). A plurality of first reinforcing ribs (13) for positioning the drive motor (2) are provided on the inner wall of the mounting cavity (1a).

8. The vehicle air conditioning damper actuator according to claim 1, characterized in that: The inner plate of the first chamber of the lower housing (11) has a second mounting cavity (1c) with a gourd-shaped cross section. The second mounting cavity (1c) is inclined. The output gear (54) in the reduction gear set (5) is installed at the large end of the second mounting cavity (1c). The small end of the second mounting cavity (1c) is equipped with a second rotating shaft (16) for installing the third reduction gear (53). A first rotating shaft (15) for mounting a second reduction gear (52) is installed on the inner wall of the lower housing (11). The first rotating shaft (15) is located at the connection between the first chamber and the second chamber and is close to the first mounting cavity (1a).

9. A vehicle air conditioning damper actuator according to claim 8, characterized in that: A number of second reinforcing ribs (17) are provided between the second mounting cavity (1c) and the output shaft hole (1b).

10. A vehicle air conditioning damper actuator according to claim 1, characterized in that: The upper shell (12) is equipped with buckles (7) on all four outer side walls, and the lower shell (11) is provided with latches (8) that cooperate with the buckles (7) at all four periphery. The outer peripheral wall of the upper housing (12) is provided with several mounting holes (18), one mounting hole (18) is located on one side of the upper housing (12), and the other mounting holes (18) are located on the corners of the upper housing (12).

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