A linear output actuator for automobiles

Abstract

The utility model discloses a linear output actuator for automobiles, the actuator comprises a housing, an output assembly, a first worm, a driving assembly and first, second and third cavities arranged in the housing, the output assembly is arranged inside the first cavity, the first worm is arranged inside the second cavity, the driving assembly is arranged inside the third cavity, the second cavity communicates the first cavity with the third cavity, the lower end of the third cavity opens downward, the actuator also comprises a mounting assembly dispersedly arranged at the upper end and both sides of the lower end of the housing, a plurality of upper positioning assemblies dispersedly arranged at the upper end of the first cavity, a plurality of middle positioning assemblies dispersedly arranged between the first cavity and the third cavity and on both sides of the second cavity, and a lower positioning assembly arranged at one side of the opening. The utility model disperses a plurality of mounting assemblies, upper positioning assemblies, middle positioning assemblies and lower positioning assemblies to improve the tightness of the housing connection, thereby preventing the output assembly, the first worm and the driving assembly from radially offsetting during rotational motion.

Description

Technical Field

[0001] The utility model relates to the technical field of actuators, in particular to a linear output actuator for automobiles. Background Art

[0002] With the development of the automobile industry and the increasing popularity of automobiles, people's dependence on automobile performance and intelligence has gradually increased, and intelligence is mainly driven by actuators with motors. For example, when a door handle is extended, an actuator with linear output is required. After assembly and use, the hidden door handle can be slowly ejected from the car body, making the car body simpler and more technological. The actuator housing usually includes an upper housing and a lower housing. The existing actuator upper housing and lower housing are connected by only one through hole at the upper and lower ends, and the connection tightness is poor. Summary of the invention

[0003] The embodiment of the present application provides a linear output actuator for an automobile, and improves the tightness of the shell connection by dispersing multiple installation components, upper positioning components, middle positioning components, and lower positioning components, thereby preventing radial displacement of the output component, the first worm gear, and the drive component during rotational motion, and at the same time making it easier to position and install the shell.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a linear output actuator for an automobile, the actuator comprising a housing, an output assembly, a first worm, a driving assembly, and a first cavity, a second cavity, and a third cavity arranged in the housing, the output assembly is arranged inside the first cavity, the first worm is arranged inside the second cavity, the driving assembly is arranged inside the third cavity, the driving assembly drives the output assembly to move through the first worm, the second cavity connects the first cavity and the third cavity, and the lower end of the third cavity opens downward, the actuator also comprises mounting assemblies dispersedly arranged on both sides of the upper end and the lower end of the housing, a plurality of upper positioning assemblies dispersedly arranged on the upper end of the first cavity, a plurality of middle positioning assemblies dispersedly arranged between the first cavity and the third cavity and on both sides of the second cavity, and a lower positioning assembly arranged on one side of the opening.

[0005] Compared with the prior art, the advantages of the utility model are:

[0006] By arranging the mounting components on the upper end and both sides of the lower end of the shell, the mounting components are distributed in a triangular shape on the shell; by dispersing the upper positioning components on the upper end of the first cavity, and dispersing the middle positioning components between the first cavity and the third cavity and on both sides of the second cavity, the upper end and the lower end of the first cavity, the two sides of the second cavity, and the upper end of the third cavity are more tightly connected during positioning and installation, thereby improving the stability of the shell connection through this arrangement; by arranging the lower positioning component on one side of the opening, the lower end of the third cavity is more tightly connected during positioning and installation; by dispersing multiple mounting components, upper positioning components, middle positioning components, and lower positioning components, the tightness of the shell connection is improved, thereby preventing the output component, the first worm gear, and the drive component from radially offset during rotational motion, and facilitating the positioning and installation of the upper and lower shells.

[0007] As an improvement, the shell includes an upper shell and a lower shell, and the mounting assembly includes a mounting hole arranged on the upper shell and a mounting seat arranged on the lower shell, and the mounting seat is arranged corresponding to the mounting hole.

[0008] As an improvement, the upper positioning component includes a first positioning hole set in the upper shell and a first positioning seat set in the lower shell, and the first positioning hole is set corresponding to the first positioning seat. The middle positioning component includes a second positioning hole set in the upper shell and a second positioning seat set in the lower shell, and the second positioning hole is set corresponding to the second positioning seat. The lower positioning component includes a third positioning hole set in the upper shell and a third positioning seat set in the lower shell, and the third positioning hole is set corresponding to the third positioning seat.

[0009] As an improvement, the first worm is arranged obliquely, and the first worm includes a first column, a first spiral tooth and a first transmission tooth arranged circumferentially along the first column, the second cavity includes a first groove arranged on the lower shell body and inclined downward, and a third groove arranged on the upper shell body and inclined upward, the first spiral tooth is embedded in the first groove, and the bottom surface of the first groove is inclined downward and protruded to provide a second groove, the lower end of the first column is inserted into the second groove, the first transmission tooth is embedded in the third groove, and the bottom surface of the third groove is inclined upward and protruded to provide a fourth groove, the upper end of the first column is inserted into the fourth groove, and the inclined setting direction of the first groove, the second groove, the third groove, and the fourth groove is consistent with the inclined setting direction of the first worm, through the known The first worm is set at an angle, and the lower shell body is tilted downward and protrudes to provide a first groove, the bottom surface of the first groove is tilted downward and protrudes to provide a second groove, the upper shell body is tilted upward and protrudes to provide a third groove, and at the same time, the bottom surface of the third groove is tilted upward and protrudes to provide a fourth groove, the first groove, the second groove, the third groove, and the fourth groove are tilted, and the tilted setting angle is consistent with the angle of the first worm, the lower end of the first column is inserted into the second groove, and at the same time, the first spiral tooth is embedded in the interior of the first groove, and the first transmission tooth is embedded in the interior of the third groove, and the upper end of the first column is inserted into the fourth groove, which can determine the installation position of the first worm inside the shell while also allowing the first worm to be tilted and installed at the set angle, so that the first worm rotates smoothly.

[0010] As an improvement, the upper end surface of the first groove is recessed downward and provided with a fifth groove, the side walls of the fifth groove are provided on both sides of the first transmission tooth, and the bottom surface of the fifth groove is provided below the first transmission tooth. Since the first worm is inclined, the distances between the front and rear ends of the lower end surface of the first transmission tooth are inconsistent, wherein the front end of the lower end surface of the first transmission tooth is closer to the upper end surface of the first groove. When the first transmission tooth rotates, the front end of the lower end surface of the first transmission tooth is scratched against the upper end surface of the first groove, affecting the transmission effect. Therefore, the upper end surface of the first groove is recessed downward and provided with a fifth groove, and the side walls of the fifth groove are provided on both sides of the first transmission tooth, and the bottom surface of the fifth groove is provided below the first transmission tooth, thereby avoiding the front end of the lower end surface of the first transmission tooth from scratching against the upper end surface of the first groove when the first transmission tooth rotates, thereby optimizing the transmission effect.

[0011] As an improvement, the drive assembly includes a limit ring, and the third cavity includes a limit block protruding upwardly from the lower shell body and an open groove provided on the upper shell body. The upper end of the limit ring is embedded in the interior of the opening groove, and the lower end of the limit ring is abutted against the limit block. By embedding the upper end of the limit ring in the interior of the opening groove and the lower end of the limit ring is abutted against the limit block, the position of the limit ring inside the first cavity can be determined, and the limit ring can be limited to prevent the limit ring from shifting.

[0012] As an improvement, the drive assembly also includes a motor and a second worm. The motor is connected to one side of the second worm and drives the second worm to rotate. The other side of the second worm is rotationally connected to the limit ring. The second worm meshes with the first transmission tooth and drives the first worm to rotate. When the position of the limit ring is determined, the position of the second worm is determined by connecting the other side of the second worm to the limit ring, and the motor is connected to one side of the second worm and drives the second worm to rotate.

[0013] As an improvement, the output assembly includes a second cylinder, second helical teeth arranged circumferentially around the second cylinder, and second transmission teeth. The second cylinder can move axially relative to the shell, the second transmission teeth are meshed with the first helical teeth, a limiting ring is provided around the inner wall of one side of the first cavity, the limiting ring is meshed with the second helical teeth, the second worm is driven to rotate by a motor, the second worm is meshed with the first transmission teeth and drives the first cylinder to rotate, so that the first helical teeth drive the second transmission teeth to rotate, so that the second helical teeth rotate under the guidance of the limiting ring, so that the second cylinder can move axially relative to the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0015] Figure 1 The figure is a schematic diagram of the overall structure of a linear output actuator for automobiles;

[0016] Figure 2 The figure is a schematic diagram of the overall structure of a linear output actuator for automobiles;

[0017] Figure 3 A schematic diagram of a linear output actuator for automobiles without an upper housing structure;

[0018] Figure 4 A schematic diagram of a linear output actuator for automobiles with the lower housing removed;

[0019] Figure 5 It is a schematic diagram of the upper shell structure;

[0020] Figure 6 It is a schematic diagram of the lower shell structure.

[0021] The marks in the above figure are: 1, actuator; 1.1, housing; 1.1.1, upper housing; 1.1.2, lower housing; 1.2, output assembly; 1.2.1, second cylinder; 1.2.2, second helical tooth; 1.2.3, second transmission tooth; 1.3, first worm; 1.3.1, first cylinder; 1.3.2, first helical tooth; 1.3.3, first transmission tooth; 1.4, drive assembly; 1.4.1, limit ring; 1.4.2, motor; 1.4.3, second worm; 1.5, first cavity; 1.5.1, limit ring; 1.6, second cavity; 1.6.1, first groove; 1.6.2, third groove; 1.6.3, second groove; 1.6.4, fourth groove; 1.6.5, fifth groove; 1.7, third cavity; 1.7.1, limit block; 1.7.2, opening groove; 1.8, mounting assembly; 1.8.1, mounting hole; 1.8.2, mounting seat; 1.9, upper positioning assembly; 1.9.1, first positioning hole; 1.9.2, first positioning seat; 1.10, middle positioning assembly; 1.10.1, second positioning hole; 1.10.2, second positioning seat; 1.11, lower positioning assembly; 1.11.1, third positioning hole; 1.11.2, third positioning seat. DETAILED DESCRIPTION

[0022] In the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] like Figures 1 to 6As shown, a linear output actuator for automobiles, the actuator 1 includes a housing 1.1, an output assembly 1.2, a first worm 1.3, a drive assembly 1.4, and a first cavity 1.5, a second cavity 1.6, and a third cavity 1.7 arranged in the housing 1.1, the output assembly 1.2 is arranged inside the first cavity 1.5, the first worm 1.3 is arranged inside the second cavity 1.6, the drive assembly 1.4 is arranged inside the third cavity 1.7, and the drive assembly 1.4 is driven by the first worm 1.3 The output component 1.2 moves, and the second cavity 1.6 connects the first cavity 1.5 and the third cavity 1.7. The lower end of the third cavity 1.7 opens downward. The actuator 1 also includes a mounting component 1.8 arranged on the upper end and both sides of the lower end of the shell 1.1, a plurality of upper positioning components 1.9 dispersedly arranged on the upper end of the first cavity 1.5, a plurality of middle positioning components 1.10 dispersedly arranged between the first cavity 1.5 and the third cavity 1.7 and on both sides of the second cavity 1.6, and a lower positioning component 1.11 arranged on one side of the opening.

[0024] The housing 1.1 comprises an upper housing 1.1.1 and a lower housing 1.1.2. The mounting assembly 1.8 comprises a mounting hole 1.8.1 arranged on the upper housing 1.1.1 and a mounting seat 1.8.2 arranged on the lower housing 1.1.2. The mounting seat 1.8.2 is arranged corresponding to the mounting hole 1.8.1. The upper positioning assembly 1.9 comprises a first positioning hole 1.9.1 arranged on the upper housing 1.1.1 and a first positioning seat 1.9.2 arranged on the lower housing 1.1.2. The first positioning hole 1.9.1 and the first positioning seat 1.9.2 are arranged corresponding to each other. It should be arranged that the middle positioning component 1.10 includes a second positioning hole 1.10.1 arranged on the upper shell 1.1.1, and a second positioning seat 1.10.2 arranged on the lower shell 1.1.2, and the second positioning hole 1.10.1 and the second positioning seat 1.10.2 are arranged correspondingly, and the lower positioning component 1.11 includes a third positioning hole 1.11.1 arranged on the upper shell 1.1.1, and a third positioning seat 1.11.2 arranged on the lower shell 1.1.2, and the third positioning hole 1.11.1 and the third positioning seat 1.11.2 are arranged correspondingly.

[0025] The first worm 1.3 is tilted, and the first worm 1.3 includes a first column 1.3.1, a first spiral tooth 1.3.2 and a first transmission tooth 1.3.3 arranged around the circumference of the first column 1.3.1, the second cavity 1.6 includes a first groove 1.6.1 which is tilted downward and protruded on the lower shell 1.1.2, and a third groove 1.6.2 which is tilted upward and protruded on the upper shell 1.1.1, the first spiral tooth 1.3.2 is embedded in the inside of the first groove 1.6.1, and the bottom surface of the first groove 1.6.1 is tilted downward and protruded to form a second groove 1.6.3, the lower end of the first column 1.3.1 is inserted into the inside of the second groove 1.6.3, and the first transmission The tooth 1.3.3 is embedded in the inside of the third groove 1.6.2, and the bottom surface of the third groove 1.6.2 is inclined upward and protrudes to form a fourth groove 1.6.4. The upper end of the first column 1.3.1 is inserted into the inside of the fourth groove 1.6.4. The inclination direction of the first groove 1.6.1, the second groove 1.6.3, the third groove 1.6.2, and the fourth groove 1.6.4 is consistent with the inclination direction of the first worm 1.3. The upper end surface of the first groove 1.6.1 is recessed downward and provided with a fifth groove 1.6.5. The side walls of the fifth groove 1.6.5 are arranged on both sides of the first transmission tooth 1.3.3, and the bottom surface of the fifth groove 1.6.5 is arranged below the first transmission tooth 1.3.3.

[0026] The driving assembly 1.4 includes a limit ring 1.4.1, a motor 1.4.2, and a second worm 1.4.3. The motor 1.4.2 is connected to one side of the second worm 1.4.3 and drives the second worm 1.4.3 to rotate. The other side of the second worm 1.4.3 is rotationally connected to the limit ring 1.4.1. The second worm 1.4.3 is meshed with the first transmission tooth 1.3.3 and drives the first worm 1.3 to rotate. The third cavity 1.7 includes a limit block 1.7.1 protruding upwardly and arranged on the lower shell 1.1.2, and an open groove 1.7.2 arranged on the upper shell 1.1.1. The upper end of the limit ring 1.4.1 is embedded in the interior of the open groove 1.7.2, and the lower end of the limit ring 1.4.1 is against the limit block 1.7.1.

[0027] The output assembly 1.2 includes a second cylinder 1.2.1, a second helical tooth 1.2.2 circumferentially arranged along the second cylinder 1.2.1, and a second transmission tooth 1.2.3. The second cylinder 1.2.1 can move axially relative to the shell 1.1, and the second transmission tooth 1.2.3 is engaged with the first helical tooth 1.3.2. A limiting ring 1.5.1 is provided around the inner wall of one side of the first cavity 1.5, and the limiting ring 1.5.1 is engaged with the second helical tooth 1.2.2.

[0028] The motor 1.4.2 is connected to one side of the second worm 1.4.3 and drives the second worm 1.4.3 to rotate, and the upper end of the limit ring 1.4.1 is embedded in the inside of the opening groove 1.7.2. The motor 1.4.2 and the second worm 1.4.3 are placed in the third cavity 1.7, and the other side of the second worm 1.4.3 passes through the opening of the opening groove 1.7.2 and is inserted into the limit ring 1.4.1 and is rotatably connected with the limit ring 1.4.1. The lower end of the first column 1.3.1 is inserted into the second groove 1.6.3, and the first spiral tooth 1.3.2 is embedded in the inside of the first groove 1.6.1, and the second worm 1.4.3 is meshed with the first transmission tooth 1.3.3 and drives the first worm 1.3 to rotate, and the second transmission tooth 1.2.3 is meshed with the first spiral tooth 1 .3.2 meshing installation, the second spiral tooth 1.2.2 is arranged inside the first cavity 1.5 and meshingly installed with the limit ring 1.5.1, the upper shell 1.1.11.1 and the lower shell 1.1.21.1 are assembled, so that the first transmission tooth 1.3.3 is embedded in the inside of the third groove 1.6.2, the upper end of the first column 1.3.1 is inserted into the fourth groove 1.6.4, the mounting hole 1.8.1 is correspondingly connected with the mounting seat 1.8.2, the first positioning hole 1.9.1 is correspondingly connected with the first positioning seat 1.9.2, the second positioning hole 1.10.1 is correspondingly connected with the second positioning seat 1.10.2, the third positioning hole 1.11.1 is correspondingly connected with the third positioning seat 1.11.2, so that the upper shell 1.1.1 and the lower shell 1.1.2 are tightly connected.

[0029] The second worm 1.4.3 is driven to rotate by the motor 1.4.2, and the second worm 1.4.3 meshes with the first transmission tooth 1.3.3 and drives the first column 1.3.1 to rotate, so that the first spiral tooth 1.3.2 drives the second transmission tooth 1.2.3 to rotate, so that the second spiral tooth 1.2.2 rotates under the guidance of the limit ring 1.5.1, so that the second column 1.2.1 can move axially relative to the housing 1.1.

[0030] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A linear output actuator for an automobile, the actuator (1) comprising a housing (1.1), an output assembly (1.2), a first worm (1.3), a drive assembly (1.4), and a first cavity (1.5), a second cavity (1.6), and a third cavity (1.7) arranged in the housing (1.1), the output assembly (1.2) being arranged inside the first cavity (1.5), the first worm (1.3) being arranged inside the second cavity (1.6), the drive assembly (1.4) being arranged inside the third cavity (1.7), the drive assembly (1.4) driving the output assembly (1.2) to move via the first worm (1.3), the second cavity (1.6) communicating with the first cavity (1.5) and the third cavity (1.7), the lower end of the third cavity (1.7) opening downward, characterized in that: The actuator (1) further comprises mounting components (1.8) arranged on both sides of the upper end and the lower end of the housing (1.1), a plurality of upper positioning components (1.9) dispersedly arranged on the upper end of the first cavity (1.5), a plurality of middle positioning components (1.10) dispersedly arranged between the first cavity (1.5) and the third cavity (1.7) and on both sides of the second cavity (1.6), and a lower positioning component (1.11) arranged on one side of the opening.

2. A linear output actuator for a vehicle according to claim 1, characterized in that: The housing (1.1) comprises an upper housing (1.1.1) and a lower housing (1.1.2); the mounting assembly (1.8) comprises a mounting hole (1.8.1) arranged on the upper housing (1.1.1) and a mounting seat (1.8.2) arranged on the lower housing (1.1.2); the mounting seat (1.8.2) is arranged corresponding to the mounting hole (1.8.1).

3. A linear output actuator for a vehicle according to claim 2, characterized in that: The upper positioning assembly (1.9) comprises a first positioning hole (1.9.1) arranged on the upper shell (1.1.1) and a first positioning seat (1.9.2) arranged on the lower shell (1.1.2); the first positioning hole (1.9.1) and the first positioning seat (1.9.2) are arranged correspondingly; the middle positioning assembly (1.10) comprises a second positioning hole (1.10.1) arranged on the upper shell (1.1.1) and a second positioning seat (1.10.2) arranged on the lower shell (1.1.2); the second positioning hole (1.10.1) and the second positioning seat (1.10.2) are arranged correspondingly; the lower positioning assembly (1.11) comprises a third positioning hole (1.11.1) arranged on the upper shell (1.1.1) and a third positioning seat (1.11.2) arranged on the lower shell (1.1.2); the third positioning hole (1.11.1) and the third positioning seat (1.11.2) are arranged correspondingly.

4. A linear output actuator for a vehicle according to claim 2, characterized in that: The first worm (1.3) is arranged obliquely, and the first worm (1.3) comprises a first column (1.3.1), a first spiral tooth (1.3.2) arranged circumferentially around the first column (1.3.1), and a first transmission tooth (1.3.3); the second cavity (1.6) comprises a first groove (1.6.1) arranged on the lower shell (1.1.2) in an oblique manner downwardly, and a third groove (1.6.2) arranged on the upper shell (1.1.1) in an oblique manner upwardly; the first spiral tooth (1.3.2) is embedded in the first groove (1.6.1); the bottom surface of the first groove (1.6.1) is provided with a protruding downward oblique tooth The first cylindrical body (1.3.1) is provided with a second groove (1.6.3), the lower end of the first cylindrical body (1.3.1) is inserted into the second groove (1.6.3), the first transmission tooth (1.3.3) is embedded in the third groove (1.6.2), the bottom surface of the third groove (1.6.2) is inclined upward and protrudes to form a fourth groove (1.6.4), the upper end of the first cylindrical body (1.3.1) is inserted into the fourth groove (1.6.4), and the inclined setting direction of the first groove (1.6.1), the second groove (1.6.3), the third groove (1.6.2) and the fourth groove (1.6.4) is consistent with the inclined setting direction of the first worm gear (1.3).

5. A linear output actuator for a vehicle according to claim 4, characterized in that: The upper end surface of the first groove (1.6.1) is recessed downward to form a fifth groove (1.6.5), the side walls of the fifth groove (1.6.5) are arranged on both sides of the first transmission tooth (1.3.3), and the bottom surface of the fifth groove (1.6.5) is arranged below the first transmission tooth (1.3.3).

6. A linear output actuator for a vehicle according to claim 4, characterized in that: The driving assembly (1.4) comprises a limiting ring (1.4.1), the third cavity (1.7) comprises a limiting block (1.7.1) protruding upwardly and arranged on the lower shell (1.1.2), and an opening groove (1.7.2) arranged on the upper shell (1.1.1), the upper end of the limiting ring (1.4.1) is embedded in the interior of the opening groove (1.7.2), and the lower end of the limiting ring (1.4.1) is against the limiting block (1.7.1).

7. A linear output actuator for a vehicle according to claim 6, characterized in that: The driving assembly (1.4) further comprises a motor (1.4.2) and a second worm (1.4.3); the motor (1.4.2) is connected to one side of the second worm (1.4.3) and drives the second worm (1.4.3) to rotate; the other side of the second worm (1.4.3) is rotationally connected to a limiting ring (1.4.1); the second worm (1.4.3) meshes with the first transmission tooth (1.3.3) and drives the first worm (1.3) to rotate.

8. A linear output actuator for a vehicle according to claim 7, characterized in that: The output assembly (1.2) comprises a second cylinder (1.2.1), a second helical tooth (1.2.2) circumferentially arranged around the second cylinder (1.2.1), and a second transmission tooth (1.2.3); the second cylinder (1.2.1) is axially movable relative to the housing (1.1); the second transmission tooth (1.2.3) is meshed with the first helical tooth (1.3.2); a limiting ring (1.5.1) is arranged around the inner wall of one side of the first cavity (1.5); the limiting ring (1.5.1) is meshed with the second helical tooth (1.2.2).

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