A ball limiting structure for a rotary actuator

Abstract

The present invention provides a ball limiting structure for a rotary actuator, which includes a housing and a slider structure. The slider structure is disposed within the housing, and a cavity is disposed on the slider structure. A ball is disposed in the cavity, and the size of the ball matches the size of the cavity. The left and right ends of the cavity are adapted to the ball to limit the rolling of the ball in the left and right directions. The upper and lower ends of the cavity are correspondingly provided with internal upper and lower openings to not limit the rolling of the ball in the vertical direction. The beneficial effects of the present invention include limiting the rolling of the ball in the left and right directions, but not limiting the rolling of the ball in the vertical direction, thereby avoiding the stuck phenomenon of the ball during operation caused by dimensional deviation of the slider structure in the upper and lower directions, thereby improving the stability of the rotary actuator.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile control equipment, and in particular to a ball limiting structure of a rotary actuator. Background Art

[0002] With the continuous advancement of automotive electronics, safe and intelligent driving are placing increasingly stringent demands on automotive electronics and structural design. Rotary actuators, among other things, were developed to address the visual angle issues associated with nighttime driving. Therefore, adaptive headlight steering systems play a crucial role in ensuring safe driving lighting and are increasingly being used in vehicle headlights. Therefore, ensuring that the rotary actuator's operational stability meets design requirements is crucial. Only when the rotary actuator is stable and free of binding can it effectively adjust the headlight's illumination angle. However, currently, no device exists to improve the stability of rotary actuators. Summary of the Invention

[0003] In view of the above problems existing in the prior art, a ball limiting structure of a rotary actuator is provided to improve the stability of the rotary actuator.

[0004] The specific technical solutions are as follows:

[0005] A ball limiting structure for a rotary actuator, comprising a housing and a slider structure, wherein the slider structure is disposed within the housing, a cavity is disposed on the slider structure, a ball is disposed in the cavity, and the size of the ball is adapted to the size of the cavity;

[0006] The left and right ends of the cavity are adapted to fit the ball so as to restrict the ball from rolling in the left and right directions;

[0007] The upper and lower ends of the cavity are correspondingly provided with internal upper and lower openings so as not to restrict the rolling of the ball in the upper and lower directions.

[0008] Preferably, the ball limiting structure has internal front and rear openings correspondingly provided at the front and rear ends of the cavity so as not to restrict the rolling of the ball in the front and rear directions.

[0009] Preferably, the ball limiting structure is configured such that the ball is spherical and the contact surface between the cavity and the ball is arc-shaped.

[0010] Preferably, the ball limiting structure has a preset distance between the ball and the cavity.

[0011] Preferably, in the ball limiting structure, the shapes of the upper and lower internal openings are both circular.

[0012] Preferably, in the ball limiting structure, the shapes of the internal front and rear openings are both circular.

[0013] Preferably, in the ball limiting structure, corresponding upper and lower openings of the shell are provided at positions corresponding to the upper and lower openings of the interior of the shell, so as not to restrict the rolling of the ball in the upper and lower directions.

[0014] Preferably, in the ball limiting structure, the upper and lower openings of the shell are in a rectangular shape, and the center positions of the upper and lower openings of the shell are aligned with the center positions of the upper and lower openings of the interior.

[0015] Preferably, the ball limiting structure is provided with corresponding front and rear openings of the shell at positions corresponding to the front and rear openings of the interior, so as not to restrict the rolling of the ball in the front and rear directions.

[0016] Preferably, in the ball limiting structure, the shape of the front and rear openings of the shell is an irregular trapezoid, and the center positions of the front and rear openings of the shell are aligned with the center positions of the front and rear openings of the interior.

[0017] The above technical solution has the following advantages or beneficial effects: it limits the rolling of the ball in the left and right directions, but does not limit the rolling of the ball in the up and down directions, thereby avoiding the jamming of the ball during operation caused by the dimensional deviation of the slider structure in the up and down directions, thereby improving the stability of the rotary actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The embodiments of the present invention will be described more fully with reference to the accompanying drawings, which are provided for illustration and description only and are not intended to limit the scope of the present invention.

[0019] Figure 1 A schematic structural diagram of an embodiment of a ball limiting structure of a rotary actuator of the present invention;

[0020] Figure 2 A schematic structural diagram of a slider structure of an embodiment of a ball limiting structure of a rotary actuator of the present invention;

[0021] Figure 3 It is a top view of an embodiment of the ball limiting structure of the rotary actuator of the present invention. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0025] The present invention includes a ball limiting structure of a rotary actuator, such as Figure 1-2 As shown, it includes a housing 1 and a slider structure 2. The slider structure 2 is arranged in the housing 1. A cavity 3 is provided on the slider structure 2. A ball 4 is provided in the cavity 3. The size of the ball 4 is adapted to the size of the cavity 3.

[0026] The left and right ends of the cavity 3 are adapted to fit the ball 4 to restrict the ball 4 from rolling in the left and right directions.

[0027] The upper and lower ends of the cavity 3 are correspondingly provided with upper and lower openings of the slider so as not to restrict the rolling of the ball 4 in the upper and lower directions.

[0028] In the above embodiment, the upper and lower openings of the slider are correspondingly provided at the upper and lower ends of the cavity 3, and the left and right ends of the cavity 3 are adapted to the ball 4 to limit the rolling of the ball 4 in the left and right directions, but not to limit the rolling of the ball 4 in the up and down directions, thereby avoiding the jamming of the ball 4 during operation due to dimensional deviations of the slider structure 2 in the up and down directions, thereby improving the stability of the rotary actuator.

[0029] In the above embodiment, the stability of the rotary actuator is improved by the ball 4 limiting structure of the rotary actuator with a simple structure, thereby reducing costs, and the rotary actuator can more smoothly control the height of the car lights in real time, so that it does not cause glare to oncoming drivers, thereby improving car driving safety.

[0030] Furthermore, in the above embodiment, the front and rear ends of the cavity 3 are correspondingly provided with front and rear openings of the slider so as not to restrict the rolling of the ball 4 in the front and rear directions.

[0031] This avoids the blocking of the ball 4 during operation due to dimensional deviations of the slider structure 2 in the front and rear directions.

[0032] As a preferred embodiment, the cavity 3 may be disposed at the center of the slider structure 2 .

[0033] Furthermore, in the above embodiment, the shape of the ball 4 is spherical, and the contact surface between the cavity 3 and the ball 4 is arc-shaped.

[0034] In the above embodiment, the ball 4 in the slider structure 2 can universally adjust the dimming angle within a certain angle, thereby increasing the sensitivity of the dimming and meeting the dimming angle requirements;

[0035] Furthermore, in the above embodiment, a preset distance is set between the ball 4 and the cavity 3 .

[0036] As a result, the slider structure 2 and the ball 4 are in contact and motion with each other to form a spherical structure, which can ensure the stability of the ball 4 during the motion process and ensure the accuracy requirement of dimming.

[0037] Furthermore, in the above embodiment, the upper and lower openings of the slider are both circular.

[0038] The movement of the ball 4 in the slider structure 2 can be made smoother, thereby avoiding the stuck phenomenon of the ball 4 in the upper and lower directions of the slider structure 2.

[0039] Furthermore, in the above embodiment, the shapes of the front and rear openings of the slider are both circular.

[0040] The movement of the ball 4 in the slider structure 2 can be made smoother, thereby avoiding the stuck phenomenon of the ball 4 in the front and rear directions of the slider structure 2.

[0041] Furthermore, in the above embodiment, corresponding upper and lower openings of the housing 1 are provided at positions corresponding to the upper and lower openings of the slider, so as not to restrict the rolling of the ball 4 in the upper and lower directions.

[0042] The movement of the ball 4 in the entire ball 4 limiting structure can be improved to be smoother, thereby avoiding the stuck phenomenon of the ball 4 in the front and rear running directions.

[0043] Furthermore, in the above embodiment, the upper and lower openings of the housing 1 are rectangular in shape, and the center positions of the upper and lower openings of the housing 1 are aligned with the center positions of the upper and lower openings of the slider.

[0044] Furthermore, in the above embodiment, if Figure 3 As shown, the housing 1 is provided with corresponding front and rear openings at positions corresponding to the front and rear openings of the slider, so as not to restrict the rolling of the ball 4 in the front and rear directions.

[0045] The movement of the ball 4 in the entire ball 4 limiting structure can be improved to be smoother, thereby avoiding the stuck phenomenon of the ball 4 in the upper and lower running directions.

[0046] Furthermore, in the above embodiment, the shape of the front and rear openings of the housing 1 is an irregular trapezoid, and the center positions of the front and rear openings of the housing 1 are aligned with the center positions of the front and rear openings of the slider.

[0047] The irregular trapezoid comprises two parallel and equal straight sides and two symmetrically arranged arcs.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball stop structure for a rotary actuator, wherein the rotary actuator is used to adjust the illumination angle of a vehicle headlamp; characterized in that: The invention comprises a housing and a slider structure, wherein the slider structure is arranged in the housing, a cavity is arranged on the slider structure, a ball is arranged in the cavity, and the size of the ball is adapted to the size of the cavity; The left and right ends of the cavity are adapted to fit the ball so as to restrict the ball from rolling in the left and right directions; The upper and lower ends of the cavity are correspondingly provided with upper and lower openings of the slider so as not to restrict the rolling of the ball in the upper and lower directions; The ball bearing can universally adjust the dimming angle within a certain angle in the slider structure; A preset distance is set between the ball and the cavity, so that the slider structure and the ball are in contact and motion with each other to form a spherical structure; The front and rear ends of the cavity are respectively provided with front and rear openings of the slider to prevent the balls from rolling in the front and rear directions; The housing is provided with corresponding upper and lower openings at positions corresponding to the upper and lower openings of the slider, so as not to restrict the rolling of the ball in the upper and lower directions; The housing is provided with corresponding front and rear openings at positions corresponding to the front and rear openings of the slider, so as not to restrict the rolling of the ball in the front and rear directions.

2. The ball limiting structure according to claim 1, characterized in that: The ball is spherical in shape, and the contact surface between the cavity and the ball is arc-shaped.

3. The ball limiting structure according to claim 1, characterized in that: The upper and lower openings of the slider are both circular.

4. The ball limiting structure according to claim 1, wherein: The front and rear openings of the slider are both circular.

5. The ball limiting structure according to claim 1, characterized in that: The upper and lower openings of the shell are in a rectangular shape, and the center positions of the upper and lower openings of the shell are aligned with the center positions of the upper and lower openings of the slider.

6. The ball limiting structure according to claim 1, characterized in that: The shape of the front and rear openings of the shell is an irregular trapezoid, and the center positions of the front and rear openings of the shell are aligned with the center positions of the front and rear openings of the slider.

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