Air-inlet grille motor structure with adjustable output torque

Abstract

The utility model discloses an air-inlet grille motor structure with an adjustable output torque. The air-inlet grille motor structure comprises a lower cover, a PCBA assembly, a motor assembly, a steel shaft, an upper cover and a gear transmission assembly. The upper cover and the lower cover are buckled with each other to form an outer shell structure, a PCBA assembly, a motor assembly and a gear transmission assembly are arranged in a hollow containing cavity of the outer shell structure, the motor assembly and the gear transmission assembly are both installed in the lower cover through steel shafts, and the PCBA assembly is installed in the lower cover through a fixing rod; the gear transmission assembly comprises a driving wheel, a second-stage gear, a third-stage gear, a fourth-stage gear and an output gear. According to the multi-stage gear train, large torque can be output by constructing the multi-stage gear train and installing the two identical four-stage gears, when low torque needs to be output, the effect that the output torque is adjustable can be achieved by disassembling any one of the four-stage gears, and the multi-stage gear train is simple, compact and reliable in structure and good in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to an output torque adjustable air intake grille motor structure. Background Art

[0002] At present, my country's new energy vehicles are developing rapidly. How to ensure fast charging of new energy vehicles, extend the driving range, and recover energy is particularly important. The grille motor is used on the front grille of the car to drive it to open / close to ensure the energy accumulation or heat dissipation of the motor.

[0003] If the current air intake grille motor needs to output different torques in different scenarios, it is necessary to replace the air intake grille motor with different specifications separately, which is very costly. Utility Model Content

[0004] In order to overcome the deficiencies of related products in the prior art, the utility model proposes an air intake grille motor structure with adjustable output torque.

[0005] The utility model provides an output torque adjustable air intake grille motor structure, comprising: a lower cover, a PCBA assembly, a motor assembly, a steel shaft, an upper cover and a gear transmission assembly; the upper cover and the lower cover are buckled together to form an outer shell structure, and the PCBA assembly, the motor assembly and the gear transmission assembly are respectively arranged in a hollow accommodating cavity of the outer shell structure, wherein the motor assembly and the gear transmission assembly are both installed in the lower cover through the steel shaft, and the PCBA assembly is installed in the lower cover through a fixing rod; the gear transmission assembly comprises a driving wheel, a secondary gear, a tertiary gear, a quaternary gear and an output gear, the quaternary gear comprises two groups and has the same structure, the driving wheel, the secondary gear, the tertiary gear, the two groups of quaternary gears and the output gear are meshed in sequence, and the driving wheel is installed at the output end of the motor assembly; the axial positions of the two groups of the quaternary gears are at the same distance from the axial position of the quaternary gear, and the axial positions of the two groups of the quaternary gears are at the same distance from the axial position of the output gear; the axial lines of the two groups of the quaternary gears are perpendicular to the axial lines of the quaternary gear and the output gear.

[0006] In certain embodiments of the present invention, the secondary gear includes an integrally formed and coaxial secondary upper gear and a secondary lower gear, the secondary upper gear is located above the secondary lower gear, and the radius of the secondary upper gear is smaller than the radius of the secondary lower gear; the tertiary gear includes an integrally formed and coaxial third-stage upper gear and a third-stage lower gear, the third-stage upper gear is located above the third-stage lower gear, and the radius of the third-stage upper gear is larger than the radius of the third-stage lower gear; the fourth-stage gear includes an integrally formed and coaxial fourth-stage upper gear and a fourth-stage lower gear, the fourth-stage upper gear is located above the fourth-stage lower gear, and the fourth-stage upper gear is located above the fourth-stage lower gear. The radius of the first-stage upper gear is greater than the radius of the fourth-stage lower gear; the output gear includes an integrally formed and coaxial output lower gear and an output shaft, and the output shaft is located at the axial center of the output lower gear; the second-stage lower gear is set at the same height as the driving wheel and meshes with each other; the second-stage upper gear is set at the same height as the third-stage upper gear and meshes with each other; the third-stage lower gear is set at the same height as the fourth-stage upper gear, and the third-stage lower gear is meshed with two groups of the fourth-stage upper gears; the fourth-stage lower gear is set at the same height as the output lower gear, and two groups of the fourth-stage lower gears are meshed with the output lower gear.

[0007] In certain embodiments of the present invention, a plurality of groups of connecting ears with connecting holes are provided on the side surface of the lower cover.

[0008] In certain embodiments of the present invention, a reinforcing rib is provided at the connection between the connecting ear and the lower cover.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The output torque adjustable air intake grille motor structure described in the embodiment of the utility model constructs a multi-stage gear system, in which the motor assembly drives the driving wheel, and the driving wheel drives the secondary gear, the third gear, the fourth gear in turn, and finally the output gear operates. By installing two sets of identical four-stage gears, a large torque can be output. When a low torque needs to be output, any one set of the four-stage gears can be removed and only one set of the four-stage gears can be used for driving. Therefore, the output torque can be adjusted without changing the existing structure. The structure is simple, compact and reliable, has good applicability, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0012] Figure 1 It is a schematic diagram of the exploded structure of the output torque adjustable air intake grille motor structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the installation of the output torque adjustable air intake grille motor structure of the utility model;

[0014] Figure 3 is a connection diagram of the gear transmission assembly;

[0015] Figure 4 A side view of the gear transmission assembly.

[0016] Description of reference numerals:

[0017] 1. Lower cover; 2. PCBA assembly; 3. Motor assembly; 4. Driving wheel; 5. Secondary gear; 6. Steel shaft; 7. Third-stage gear; 8. Fourth-stage gear; 9. Output gear; 10. Connecting ear; 11. Upper cover; 12. Output shaft; 13. Secondary upper gear; 14. Secondary lower gear; 15. Third-stage upper gear; 16. Third-stage lower gear; 17. Fourth-stage upper gear; 18. Fourth-stage lower gear; 19. Output lower gear; 20 / Fixing rod. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. The drawings show preferred embodiments of the present invention. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0019] See also Figure 1-4As shown, the output torque adjustable air intake grille motor structure includes a lower cover 1, a PCBA assembly 2, a motor assembly 3, a steel shaft 6, an upper cover 11 and a gear transmission assembly; the upper cover 11 and the lower cover 1 are buckled together to form an outer shell structure, and the PCBA assembly 2, the motor assembly 3 and the gear transmission assembly are respectively arranged in the hollow accommodating cavity of the outer shell structure, wherein the motor assembly 3 and the gear transmission assembly are both installed in the lower cover 1 through the steel shaft 6, and the PCBA assembly 2 is installed in the lower cover 1 through the fixing rod 20; the gear transmission assembly includes a driving wheel 4, a secondary gear 5 , a third-stage gear 7, a fourth-stage gear 8 and an output gear 9, the fourth-stage gear 8 includes two groups and has the same structure, the driving wheel 4, the second-stage gear 5, the third-stage gear 7, the two groups of fourth-stage gears 8 and the output gear 9 are meshed in sequence, the driving wheel 4 is installed at the output end of the motor assembly 3; the axial positions of the two groups of the fourth-stage gears 8 are at the same distance from the axial position of the third-stage gear 7, and the axial positions of the two groups of the fourth-stage gears 8 are at the same distance from the axial position of the output gear 9; the axial lines of the two groups of the fourth-stage gears 8 are perpendicular to the axial lines of the third-stage gear 7 and the output gear 9.

[0020] The side of the lower cover 1 is provided with a plurality of connecting ears 10 with connecting holes to provide force fulcrums when connected with an external mechanism; reinforcing ribs may also be provided at the connection between the connecting ears 10 and the lower cover 1 to enhance the physical support stability.

[0021] The secondary gear 5 includes an integrally formed and coaxial secondary upper gear 13 and a secondary lower gear 14, wherein the secondary upper gear 13 is located above the secondary lower gear 14, and the radius of the secondary upper gear 13 is smaller than the radius of the secondary lower gear 14; the tertiary gear 7 includes an integrally formed and coaxial tertiary upper gear 15 and a tertiary lower gear 16, wherein the tertiary upper gear 15 is located above the tertiary lower gear 16, and the radius of the tertiary upper gear 15 is larger than the radius of the tertiary lower gear 16; the tertiary gear 8 includes an integrally formed and coaxial tertiary upper gear 17 and a tertiary lower gear 18, wherein the tertiary upper gear 17 is located above the tertiary lower gear 18, and the semi-circular portion of the tertiary upper gear 17 is located at the tertiary lower gear 18. The diameter is greater than the radius of the fourth-stage lower gear 18; the output gear 9 includes an integrally formed and coaxial output lower gear 19 and an output shaft 12, and the output shaft 12 is located at the axial center position of the output lower gear 19; the second-stage lower gear 14 is set at the same height as the driving wheel 4, and they are meshed with each other; the second-stage upper gear 13 is set at the same height as the third-stage upper gear 15, and they are meshed with each other; the third-stage lower gear 16 is set at the same height as the fourth-stage upper gear 17, and the third-stage lower gear 16 is meshed with two groups of the fourth-stage upper gears 17; the fourth-stage lower gear 18 is set at the same height as the output lower gear 19, and two groups of the fourth-stage lower gears 18 are meshed with the output lower gear 19.

[0022] The output torque adjustable air intake grille motor structure described in the embodiment of the utility model constructs a multi-stage gear system, in which the motor assembly 3 drives the driving wheel 4, and the driving wheel 4 drives the secondary gear 5, the tertiary gear 7, the fourth gear 8 in turn, and finally the output gear 9 operates. By installing two sets of identical four-stage gears 8, a large torque can be output. When a low torque needs to be output, any one set of the four-stage gears 8 can be removed and only one set of the four-stage gears 8 can be used for driving. Therefore, the output torque can be adjusted without changing the existing structure. The structure is simple, compact and reliable, has good applicability, and reduces costs.

[0023] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The above are only embodiments of the utility model, but do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above specific implementation methods, or replace some of the technical features therein with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of this utility model.

Claims

1. An air intake grille motor structure with adjustable output torque, characterized in that: include: A lower cover (1), a PCBA assembly (2), a motor assembly (3), a steel shaft (6), an upper cover (11) and a gear transmission assembly; the upper cover (11) and the lower cover (1) are buckled together to form an outer shell structure, and the PCBA assembly (2), the motor assembly (3) and the gear transmission assembly are respectively arranged in a hollow accommodating cavity in the outer shell structure, wherein the motor assembly (3) and the gear transmission assembly are both installed in the lower cover (1) through the steel shaft (6), and the PCBA assembly (2) is installed in the lower cover (1) through a fixing rod (20); the gear transmission assembly includes a driving wheel (4), a secondary gear (5), a tertiary gear (7), a quaternary gear (8), and a secondary gear (9). The motor assembly (3) comprises a plurality of four-stage gears (8) and an output gear (9), wherein the four-stage gears (8) include two groups with the same structure, the driving wheel (4), the secondary gear (5), the third gear (7), the two groups of four-stage gears (8) and the output gear (9) are meshed in sequence, and the driving wheel (4) is installed at the output end of the motor assembly (3); the axis positions of the two groups of four-stage gears (8) are at the same distance from the axis position of the third gear (7), and the axis positions of the two groups of four-stage gears (8) are at the same distance from the axis position of the output gear (9); the axis lines of the two groups of four-stage gears (8) are perpendicular to the axis lines of the third gear (7) and the output gear (9).

2. The output torque adjustable air intake grille motor structure according to claim 1, characterized in that: The secondary gear (5) comprises an integrally formed and coaxial secondary upper gear (13) and a secondary lower gear (14), wherein the secondary upper gear (13) is located above the secondary lower gear (14), and the radius of the secondary upper gear (13) is smaller than the radius of the secondary lower gear (14); the tertiary gear (7) comprises an integrally formed and coaxial third-stage upper gear (15) and a third-stage lower gear (16), wherein the third-stage upper gear (15) is located above the third-stage lower gear (16), and the radius of the third-stage upper gear (15) is larger than the radius of the third-stage lower gear (16); the fourth-stage gear (8) comprises an integrally formed and coaxial fourth-stage upper gear (17) and a fourth-stage lower gear (18), wherein the fourth-stage upper gear (17) is located above the fourth-stage lower gear (18), and the fourth-stage upper gear (17) is located above the fourth-stage lower gear (18). The radius of the output gear (9) is greater than the radius of the fourth-stage lower gear (18); the output gear (9) comprises an output lower gear (19) and an output shaft (12) which are integrally formed and coaxial, and the output shaft (12) is located at the axis center of the output lower gear (19); the second-stage lower gear (14) and the driving wheel (4) are arranged at the same height and mesh with each other; the second-stage upper gear (13) and the third-stage upper gear (15) are arranged at the same height and mesh with each other; the third-stage lower gear (16) and the fourth-stage upper gear (17) are arranged at the same height, and the third-stage lower gear (16) meshes with two groups of the fourth-stage upper gears (17); the fourth-stage lower gear (18) and the output lower gear (19) are arranged at the same height, and the two groups of the fourth-stage lower gears (18) mesh with the output lower gear (19).

3. The output torque adjustable air intake grille motor structure according to claim 1, characterized in that: A plurality of groups of connection ears (10) with connection holes are arranged on the side surface of the lower cover (1).

4. The output torque adjustable air intake grille motor structure according to claim 3 is characterized in that: A reinforcing rib is provided at the connection between the connecting ear (10) and the lower cover (1).

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