Rotary actuating mechanism

Abstract

The utility model discloses a rotary actuating mechanism, which comprises a shell, a rotary output structure, a motor and a transmission structure, the shell comprises an upper shell and a lower shell, the motor, the transmission structure and the rotary output structure are all arranged in the lower shell, the outer end of the rotary output structure extends out of the upper shell, and the outer end of the rotary output structure extends out of the lower shell. The specification size of the lower shell is smaller than that of the upper shell, the edge part of the lower shell is matched and sealed with a profiled groove formed in the lower part of the upper shell through a sealing ring, and the edge part of the upper shell forms an outer side sealing structure through a rubber coating structure. The lower shell is designed to be smaller than the upper shell, the edge part of the lower shell is matched and sealed with a profiled groove in the lower part of the upper shell through a sealing ring, and the edge part of the upper shell is sealed again through a rubber coating structure, so that the waterproof effect is good; and the whole driving structure is relatively flat, the structure is compact, the occupied space is small, and mechanism arrangement and installation are facilitated.

Description

Technical Field

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

[0002] With the development of automobile technology, cameras are widely used in automobiles to improve the safety performance of automobiles. Cameras installed on automobiles need to have a rotating function and require good waterproof performance. Existing rotating execution structures are complex in structure, unreasonable arrangement of parts, large space occupation, not conducive to overall layout and installation, and the waterproof performance needs to be improved.

[0003] For example, patent CN220615703U discloses an automatic driving front-view camera that can actively rotate along with the vehicle trajectory, comprising a front-view camera body, a reduction gear set, a motor, and a housing; wherein an upper rotating shaft is provided on the top surface of the front-view camera body, and a lower rotating shaft is provided on the bottom of the front-view camera body; the upper rotating shaft is rotatably connected to a stray light protection cover; a limiting protrusion is provided on the side of the lower rotating shaft, and the lower rotating shaft with the limiting protrusion is interference fit with the reduction wheel of the reduction gear set, and the end of the lower rotating shaft is mounted on the housing and rotates relative to the housing; the reduction gear set and the motor are mounted in the housing, and the reduction gear set is driven by the motor to move, thereby driving the front-view camera body to rotate counterclockwise or clockwise by a certain angle; it occupies a large space, is not conducive to layout and installation, and has poor waterproof performance. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a rotary actuator to achieve the purpose of compact structure and good waterproof effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The rotary actuator comprises a housing, a rotary output structure, a motor and a transmission structure. The housing comprises an upper housing and a lower housing. The motor, the transmission structure and the rotary output structure are all arranged in the lower housing. The outer end of the rotary output structure extends out of the upper housing. The specification and size of the lower housing are smaller than those of the upper housing. The edge of the lower housing is sealed with a groove arranged at the lower part of the upper housing through a sealing ring. The edge of the upper housing forms an outer sealing structure through a rubber-encapsulated structure.

[0007] Further:

[0008] The rubber-encapsulated structure and the upper shell are integrated together to form an overall upper shell structure.

[0009] It also includes a connector connected to the wiring harness. The rotary output structure is a hollow through structure, and the connector is located in the through structure.

[0010] The rotating output structure is an output gear, and a fixing hole for mounting a camera is provided on the outer end surface of the output gear. A worm is connected to the end of the motor, and the worm and the output gear are connected via a transmission structure.

[0011] The edge of the output gear is provided with a step, and the step is provided with a limiting elastic structure which cooperates with the inner side of the upper shell body and limits the axial position of the output gear.

[0012] The lower shell is provided with a groove that matches the bottom of the output gear, and the corresponding motor is provided with a circuit board, the circuit board is provided with a board end connector, a wiring harness is provided in the groove, the wiring harness and the board end connector are connected by an internal connecting wire, and the edge of the groove is provided with an opening for the internal connecting wire to pass through.

[0013] The limiting elastic structure comprises an annular limiting plate and a wave spring. The annular limiting plate is arranged on the step, an annular groove is arranged on the annular limiting plate, and the wave spring is arranged in the annular groove.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The rotary actuator has a reasonable structural design. The lower shell is designed to be smaller than the upper shell. The edge of the lower shell is sealed with the groove at the bottom of the upper shell through a sealing ring. The edge of the upper shell is sealed again through a rubber-encapsulated structure, and the waterproof effect is good. In addition, the entire drive structure is relatively flat and compact, occupies little space, and is conducive to mechanism layout and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following is a brief description of the contents and symbols in the drawings of this specification:

[0017] Figure 1 The utility model is a schematic diagram of the overall execution mechanism Figure 1 .

[0018] Figure 2 The utility model is a schematic diagram of the overall execution mechanism Figure 2 .

[0019] Figure 3 This is a schematic diagram of the utility model with the upper shell removed.

[0020] Figure 4 This is a schematic diagram of the lower shell and interior of the utility model.

[0021] Figure 5 and Figure 6 for Figure 4 Schematic diagram of removing the wave spring and annular limit plate.

[0022] Figure 7 It is a partial schematic diagram of the lower shell of the utility model.

[0023] In the figure:

[0024] 1. Upper housing, 2. Lower housing, 201. Limit block, 3. Rubber coating structure, 4. Rotary output structure, 401. Output gear, 402. Partial tooth structure, 403. Step, 404. Rubber pad, 5. Connector, 6. Motor, 7. Worm, 8. Worm gear assembly, 9. Transmission gear assembly, 10. Annular limit plate, 11. Wave spring, 12. Wire harness pressure plate, 13. Internal connecting wire, 14. Board terminal connector, 15. Wire harness. DETAILED DESCRIPTION

[0025] The specific implementation of the utility model will be further explained in detail below through the description of embodiments with reference to the accompanying drawings.

[0026] like Figures 1 to 7 As shown, the rotary actuator includes a shell, a rotary output structure 4, a motor 6 and a transmission structure; the shell includes an upper shell 1 and a lower shell 2, the motor, the transmission structure and the rotary output structure are all arranged in the lower shell, the outer end of the rotary output structure extends from the upper shell, and a fixing hole for fixing the camera is provided on the outer end surface of the rotary output structure.

[0027] The specifications and dimensions of the lower shell are smaller than those of the upper shell. The edge of the lower shell is sealed with a groove arranged at the lower part of the upper shell through a sealing ring, and the edge of the upper shell forms an outer sealing structure through a rubber-encapsulated structure 3; the main structure of the actuator is integrated in the lower shell, and the upper shell is a flat structure with a compact structure.

[0028] The rotary actuator structure of the utility model is reasonably designed. The lower shell is designed to be smaller than the upper shell. The edge of the lower shell is sealed with the groove at the bottom of the upper shell by a sealing ring. The edge of the upper shell is sealed again by a rubber-wrapped structure, and the waterproof effect is good. In addition, the entire drive structure is relatively flat and integrated in the lower shell, which occupies a small space and is conducive to the arrangement and installation of the mechanism.

[0029] The rubber-encapsulated structure and the upper shell are integrated together to form an overall upper shell structure. The inner side of the edge of the upper shell has a rubber-encapsulated part, which eliminates the need for a traditional sealing ring, simplifies the structure, and reduces costs.

[0030] The actuator is integrated with a wiring harness 15 and a connector 5 connected to the camera; the rotation output structure is a hollow through structure, and the connector is located in the through structure, and the structure is compact.

[0031] Preferably, the rotating output structure 4 is an output gear 401, and a fixing hole for mounting a camera is provided on the outer end surface of the output gear; a worm 7 is connected to the end of the motor 6, and a matching worm wheel assembly 8 and a transmission gear assembly 9 are provided in the lower shell body, and the worm wheel assembly cooperates with the worm, and a partial tooth structure 402 is provided on the output gear, and the partial tooth structure cooperates with the transmission gear assembly; the entire driving structure is arranged flat in the lower shell body, and the structure is compact.

[0032] A groove matching the bottom of the output gear is provided in the lower shell, a circuit board is provided corresponding to the motor, a board-end connector 14 is provided on the circuit board, a wiring harness is provided in the groove, the wiring harness and the board-end connector are connected by an internal connecting wire 13, and an opening for the internal connecting wire to pass through is provided on the edge of the groove; the corresponding opening in the lower shell is used to position the wiring harness pressing plate 12 of the internal connecting wire, and the structure is compact and reliable.

[0033] A limit block 201 is provided on the inner wall of the lower shell, and the end of the partial tooth structure on the outer edge of the output gear is limited by the limit block, thereby limiting the rotation stroke of the output gear; further, a rubber pad 404 is provided at the end of the partial tooth structure to avoid abnormal noise.

[0034] Furthermore, a step 403 is provided on the edge of the output gear, and a limiting elastic structure is provided on the step to cooperate with the inner side of the upper shell to limit the axial position of the output gear, so that the operation is stable and reliable and axial movement is avoided.

[0035] Preferably, the limiting elastic structure includes an annular limiting plate 10 and a wave spring 11. The annular limiting plate is arranged on the step, an annular groove is arranged on the annular limiting plate, and the wave spring is arranged in the annular groove, and the structure is compact.

[0036] The above is only an explanation of the preferred embodiments of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0037] The utility model is described above by way of example 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 concept and 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 rotary actuator, comprising a housing, a rotary output structure, a motor and a transmission structure, wherein the housing comprises an upper housing and a lower housing, the motor, the transmission structure and the rotary output structure are all arranged in the lower housing, and the outer end of the rotary output structure extends out of the upper housing, characterized in that: The specification size of the lower shell is smaller than that of the upper shell. The edge of the lower shell is sealed with a groove arranged at the lower part of the upper shell through a sealing ring, and the edge of the upper shell forms an outer sealing structure through a rubber-encapsulated structure.

2. The rotary actuator according to claim 1, characterized in that: The rubber-encapsulated structure and the upper shell are integrated together to form an overall upper shell structure.

3. The rotary actuator according to claim 1, characterized in that: It also includes a connector connected to the wiring harness. The rotary output structure is a hollow through structure, and the connector is located in the through structure.

4. The rotary actuator according to claim 1, characterized in that: The rotating output structure is an output gear, and a fixing hole for mounting a camera is provided on the outer end surface of the output gear. A worm is connected to the end of the motor, and the worm and the output gear are connected via a transmission structure.

5. The rotary actuator according to claim 4, characterized in that: The edge of the output gear is provided with a step, and the step is provided with a limiting elastic structure which cooperates with the inner side of the upper shell body to limit the axial position of the output gear.

6. The rotary actuator according to claim 4, characterized in that: The lower shell is provided with a groove that matches the bottom of the output gear, and the corresponding motor is provided with a circuit board, the circuit board is provided with a board end connector, a wiring harness is provided in the groove, the wiring harness and the board end connector are connected by an internal connecting wire, and the edge of the groove is provided with an opening for the internal connecting wire to pass through.

7. The rotary actuator according to claim 5, characterized in that: The limiting elastic structure comprises an annular limiting plate and a wave spring. The annular limiting plate is arranged on the step, an annular groove is arranged on the annular limiting plate, and the wave spring is arranged in the annular groove.

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