A backlight rotating mechanism

Abstract

This application provides a backlight rotation mechanism, including a drive mechanism and a backlight body mounted thereon. The drive mechanism consists of a positioning plate, a rotating component, and a lifting component. One end of the rotating component is rotatably connected to the backlight body, enabling its horizontal rotation; the lifting component is vertically mounted on the positioning plate, with its other end connected to the rotating component, driving the rotating component and the backlight body to move up and down as a whole. Through the coordinated operation of the rotating component and the lifting component, this mechanism achieves flexible and stable multi-degree-of-freedom adjustment of the backlight in three-dimensional space.

Description

Technical Field

[0001] This application relates to the field of backlights, and more particularly to a backlight rotation mechanism. Background Technology

[0002] In many fields involving backlight applications, such as display device manufacturing, optical instrument research and development, and lighting system design, the performance of backlights plays a crucial role in the final quality of products.

[0003] In existing technologies, most rotating mechanisms on backlights can only achieve single-dimensional rotational adjustment, and the adjustment methods are relatively fixed and limited. For example, when it is necessary to move the backlight up and down simultaneously to adapt to different installation environments or optical requirements, traditional mechanisms often cannot meet the requirements, resulting in the need for additional auxiliary devices or complex operating procedures in practical applications, which increases costs and difficulty of use.

[0004] Therefore, there is a need to provide a backlight rotation mechanism that can be flexibly adjusted. Utility Model Content

[0005] In view of this, it is necessary to provide a backlight rotation mechanism to solve the above problems.

[0006] Embodiments of this application provide a backlight rotation mechanism, including a drive mechanism and a backlight body mounted on the drive mechanism, wherein the drive mechanism includes: A positioning plate is spaced apart from the backlight body; A rotating component, one end of which is rotatably connected to the backlight body; A lifting assembly is arranged in a direction perpendicular to the positioning plate. One end of the lifting assembly is located on the positioning plate, and the other end of the lifting assembly is connected to the other end of the rotating assembly, so that the lifting assembly drives the rotating assembly to move.

[0007] In at least one embodiment of this application, the rotating component includes: A mounting plate is disposed between the lifting assembly and the backlight body; A rotating shaft passes through the mounting plate and is connected to the backlight body.

[0008] In at least one embodiment of this application, the moving mechanism further includes: a support plate, the backlight body is disposed on the support plate, the support plate is opposite to and spaced apart from the mounting plate, and the rotating shaft is connected to the support plate.

[0009] In at least one embodiment of this application, the rotating component further includes: Multiple sliding wheels are arranged circumferentially around the rotation axis and at equal intervals on the mounting plate; The plurality of sliding wheels are in contact with and roll on the surface of the support plate.

[0010] In at least one embodiment of this application, each of the sliding wheels includes a support frame, the support frame is disposed on the mounting plate, the sliding wheel is disposed on the support frame, and the sliding wheel is spaced apart from the mounting plate.

[0011] In at least one embodiment of this application, the lifting assembly includes: The drive unit is mounted on the positioning plate; A lifting rod is provided along the height direction of the drive seat and is positioned opposite and spaced apart from the positioning plate. One end of the lifting rod is slidably connected to the drive seat, and the other end of the lifting rod is connected to the mounting plate.

[0012] In at least one embodiment of this application, the rotating shaft has an output end and a driving end, the output end is connected to the support plate, the driving end is located on the side of the mounting plate opposite to the output end, and the driving end is located between the mounting plate and the positioning plate.

[0013] In at least one embodiment of this application, the number of the sliding wheels is four, and the included angle between two adjacent sliding wheels in the circumferential direction is 90°.

[0014] In at least one embodiment of this application, the rotating shaft includes a driving member disposed at the driving end.

[0015] In at least one embodiment of this application, the driving element includes: A gear ring, which is fitted onto the drive end; The driving gear meshes with the gear ring and is connected to the mounting plate.

[0016] The aforementioned backlight rotation mechanism comprises a positioning plate, a rotating assembly, and a lifting assembly. By rotatably connecting one end of the rotating assembly to the backlight body, the backlight body can be flexibly rotated and adjusted horizontally. The lifting assembly is arranged perpendicular to the positioning plate, with one end fixed to the positioning plate and the other end tightly connected to the other end of the rotating assembly. This allows the lifting assembly to drive the rotating assembly to move vertically, thereby achieving flexible adjustment of the backlight body in three-dimensional space. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a backlight rotation mechanism in an embodiment of this application; Figure 2 This is a schematic diagram of the positioning plate and rotating assembly in the embodiments of this application; Figure 3 This is a front view schematic diagram of a backlight rotation mechanism according to an embodiment of this application; Figure 4 for Figure 3 Cross-sectional view of AA.

[0018] Explanation of main component symbols 100. A backlight rotation mechanism; 10. Backlight body; 20. Drive mechanism; 21. Positioning plate; 22. Rotation component; 221. Mounting plate; 222. Rotation shaft; 2221. Output end; 2222. Drive end; 2223. Drive component; 22231. Gear ring; 22232. Drive gear; 223. Sliding wheel; 224. Support frame; 23. Lifting component; 231. Drive seat; 232. Lifting rod; 24. Support plate. Detailed Implementation

[0019] The embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0020] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or may also have an intervening component. When a component is considered to be "placed" on another component, it can be directly placed on the other component or may also have an intervening component. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "back," and similar expressions used in this article are for illustrative purposes only.

[0021] An embodiment of this application provides a backlight rotation mechanism, including a driving mechanism and a backlight body mounted on the driving mechanism, characterized in that the driving mechanism includes: A positioning plate is spaced apart from the backlight body; A rotating component, one end of which is rotatably connected to the backlight body; A lifting assembly is arranged in a direction perpendicular to the positioning plate. One end of the lifting assembly is located on the positioning plate, and the other end of the lifting assembly is connected to the other end of the rotating assembly, so that the lifting assembly drives the rotating assembly to move.

[0022] The aforementioned backlight rotation mechanism comprises a positioning plate, a rotating assembly, and a lifting assembly. By rotatably connecting one end of the rotating assembly to the backlight body, the backlight body can be flexibly rotated and adjusted horizontally. The lifting assembly is arranged perpendicular to the positioning plate, with one end fixed to the positioning plate and the other end tightly connected to the other end of the rotating assembly. This allows the lifting assembly to drive the rotating assembly to move vertically, thereby achieving flexible adjustment of the backlight body in three-dimensional space.

[0023] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] according to Figures 1-4 This application provides a backlight rotation mechanism 100, which includes a drive mechanism 20 and a backlight body 10 mounted on the drive mechanism 20. The drive mechanism 20 includes a positioning plate 21, a rotation component 22 and a lifting component 23.

[0025] The positioning plate 21 is spaced apart from the backlight body 10. One end of the rotating component 22 is rotatably connected to the backlight body 10. The lifting component 23 is arranged in a direction perpendicular to the positioning plate 21, with one end of the lifting component 23 mounted on the positioning plate 21 and the other end connected to the other end of the rotating component 22, so that the lifting component 23 drives the rotating component 22 to move.

[0026] Specifically, the positioning plate 21, as a fixed base component, is typically mounted on the equipment frame using bolts or other fasteners to provide stable support. The positioning plate 21 is spaced apart from the backlight body 10 to ensure that the backlight has sufficient space for adjustment during movement.

[0027] Furthermore, one end of the rotating component 22 is connected to the backlight body 10 via a rotatable connection, such as by using a bearing or a rotating shaft 222, so that when the rotating component 22 rotates 360 degrees, it drives the backlight body 10 to rotate 360 ​​degrees in the horizontal plane, thereby adapting to the optical needs of different positions.

[0028] Furthermore, one end of the lifting component 23 can be fixedly connected to the positioning plate 21 by welding or threading, and the other end of the lifting component 23 can be connected to the rotating component 22 by welding or threading, thereby connecting and fixing the positioning plate 21 and the rotating component 22. When the lifting component 23 is running, one end of the lifting component 23 is fixed to the positioning plate 21, thereby causing the other end of the lifting component 23 to generate a force that moves in a direction perpendicular to the positioning plate 21, thereby driving the rotating component 22 to move vertically as a whole, and thus pushing the backlight body 10 to rise and fall. In this way, the backlight body 10 can not only achieve horizontal rotation through the rotating component 22, but also achieve vertical position adjustment through the driving of the lifting component 23, thereby achieving flexible positioning with multiple degrees of freedom in three-dimensional space.

[0029] In one specific embodiment, the rotating assembly 22 includes a mounting plate 221 and a rotating shaft 222.

[0030] The mounting plate 221 is disposed between the lifting assembly 23 and the backlight body 10. The rotating shaft 222 passes through the mounting plate 221 and is connected to the backlight body 10.

[0031] Specifically, the mounting plate 221 serves as the mounting structure within the rotating assembly 22, positioned between the lifting assembly 23 and the backlight body 10. It is typically a metal plate with sufficient rigidity and strength, with one side fixedly connected to one end of the lifting assembly 23 to receive lifting motion, and the other side used to support and mount the rotating shaft 222 and the backlight body 10 connected to the rotating shaft 222.

[0032] Furthermore, the rotating shaft 222 passes vertically through the mounting plate 221 via components such as bearings or bushings, ensuring smooth rotation relative to the mounting plate 221. One end of the rotating shaft 222 is rigidly connected to the backlight body 10 via a flange, keyway, or fasteners. Therefore, when the rotating shaft 222 rotates under external force, it directly drives the backlight body 10 to rotate as well, thereby achieving angle adjustment in the horizontal plane.

[0033] In one specific embodiment, the moving mechanism further includes: a support plate 24, the backlight body 10 is disposed on the support plate 24, the support plate 24 is opposite to and spaced apart from the mounting plate 221, and the rotating shaft 222 is connected to the support plate 24.

[0034] Specifically, the backlight body 10 is mounted on the outward-facing side of the support plate 24 via bolts or clips. The support plate 24 and the mounting plate 221 are spatially opposite and spaced apart, with a gap between them to accommodate the rotation shaft 222 of the rotating assembly 22. The rotation of the support plate 24, driven by the rotation shaft 222, causes the backlight body 10 to rotate relative to the mounting plate 221.

[0035] In one specific embodiment, the rotating component 22 further includes: a plurality of sliding wheels 223, which are circumferentially arranged on the mounting plate 221 around the rotating shaft 222 and at equal intervals; wherein the plurality of sliding wheels 223 are in contact with the surface of the support plate 24 and are rolled.

[0036] Specifically, the sliding wheel 223 contacts and rolls on the surface of the support plate 24. When the rotating shaft 222 drives the backlight body 10 to rotate, the sliding wheel 223 rolls on the surface of the support plate 24, playing a role in auxiliary support and reducing friction. This greatly enhances the rigidity and stability of the entire rotating mechanism, enabling it to support heavier and larger backlights without deformation or shaking.

[0037] Furthermore, multiple mounting positions are machined on the mounting plate 221 around the through hole of the rotation shaft 222 for fixing the sliding wheels 223. The support plate 24 serves as the mounting base for the backlight body 10, bearing the entire weight and operating load of the backlight body 10, and transmitting these loads vertically downward and evenly to the multiple circumferentially distributed sliding wheels 223. The sliding wheels 223 ultimately transmit the load to the mounting plate 221 through rolling.

[0038] In one specific embodiment, each of the sliding wheels 223 includes a support frame 224, the support frame 224 is disposed on the mounting plate 221, the sliding wheel 223 is disposed on the support frame 224, and the sliding wheel 223 is spaced apart from the mounting plate 221.

[0039] Specifically, the support frame 224 serves as the structure for mounting and fixing the sliding wheel 223. In this embodiment, the support frame 224 consists of two relatively spaced columns. The sliding wheel 223 is installed between the two columns, and the bottoms of the two columns are fixed to the upper surface of the mounting plate 221 by bolts or welding. The sliding wheel 223 is rotatably mounted on the top of the support frame 224 via a pivot pin. The height of the support frame 224 ensures that the sliding wheel 223 is spaced apart from the mounting plate 221 below, meaning there is a certain vertical distance between the lowest point of the sliding wheel 223 and the surface of the mounting plate 221, preventing direct contact. This avoids friction or interference between the sliding wheel 223 and the surface of the mounting plate 221 during rolling, thus preventing the sliding wheel from rotating.

[0040] In one specific embodiment, the lifting assembly 23 includes a drive seat 231 and a lifting rod 232. The drive seat 231 is disposed on the positioning plate 21; the lifting rod 232 is disposed along the height direction of the drive seat 231, and is opposite to and spaced apart from the positioning plate 21, with one end of the lifting rod 232 slidably connected to the drive seat 231, and the other end of the lifting rod 232 connected to the mounting plate 221.

[0041] Specifically, the drive base 231 is a basic component fixed to the positioning plate 21, which integrates a power source structure such as a motor, cylinder, or hydraulic cylinder. The lifting rod 232 is a rigid rod arranged along the height direction of the drive base 231. One end of the lifting rod 232 extends into the drive base 231 and forms a sliding connection with the drive base 231, allowing the drive base 231 to drive the lifting rod 232 to move linearly along its axial direction. The other end of the lifting rod 232 extends upward and is fixedly connected to the bottom center of the mounting plate 221 or a specific connection point, thereby transmitting the lifting motion to the entire rotating assembly 22.

[0042] Furthermore, the drive base 231 provides power and guidance, while the lifting rod 232 transmits motion and bears the load. This makes the lifting motion smoother, more controllable, and easier to achieve displacement control. Simultaneously, the sliding connection between the lifting rod 232 and the drive base 231 ensures the straightness of the motion trajectory, effectively preventing any swaying or jamming during lifting, thus ensuring stable and reliable vertical lifting of the mounting plate 221, rotating shaft 222, and backlight body 10 connected to it.

[0043] In one specific embodiment, the rotating shaft 222 has an output end 2221 and a driving end 2222. The output end 2221 is connected to the support plate 24, and the driving end 2222 is located on the side of the mounting plate 221 away from the output end 2221, and the driving end 2222 is located between the mounting plate 221 and the positioning plate 21.

[0044] Specifically, the output end 2221 of the rotating shaft 222 passes through the mounting plate 221 and is directly and fixedly connected to the support plate 24, responsible for outputting rotational power and motion to the support plate 24 and the backlight body 10 mounted on the support plate 24. The drive end 2222 of the rotating shaft 222 is used to provide the power source for the rotating shaft 222 to rotate.

[0045] Furthermore, the drive end 2222 is located in the space between the mounting plate 221 and the positioning plate 21. This allows all components used to drive the rotation of the rotating shaft 222, such as motors and gears, to be housed within this protected internal space formed by the mounting plate 221 and the positioning plate 21.

[0046] In one specific embodiment, the number of sliding wheels 223 is four, and the included angle between two adjacent sliding wheels 223 in the circumferential direction is 90°.

[0047] Specifically, in this embodiment, a four-set sliding wheel 223 structure is selected. The four sliding wheels 223 are mounted on the mounting plate 221 via their respective support frames 224 and arranged around the central axis of the rotation shaft 222. This allows the four sliding wheels 223 to be positioned at 0°, 90°, 180°, and 270° of a virtual circle when viewed from the center of the rotation shaft 222, forming a completely symmetrical and uniform cross-shaped support layout, which can provide completely consistent support stiffness and resistance torque in any direction.

[0048] Furthermore, when the upper support plate 24 and the backlight body 10 rotate or bear load, the overturning moment generated by the large size of the backlight body 10 can be evenly and balancedly borne and distributed by the support points distributed by the four sliding wheels 223. This eliminates any soft spots or weak points that may exist in the support structure in a specific direction, ensuring extremely high stability and consistency of the rotational motion within the entire 360-degree range.

[0049] In one specific embodiment, the rotating shaft 222 includes a driving member 2223, which is disposed at the driving end 2222.

[0050] Specifically, the drive component 2223 is a power module of an assembly, and its power source can be a motor, rotary cylinder, etc., which are fixedly installed on the positioning plate 21. The output part of the drive component 2223 is directly or indirectly connected to the drive end 2222 of the rotating shaft 222, thereby transmitting power to the rotating shaft 222 and driving it to rotate.

[0051] In one specific embodiment, the driving component 2223 includes a gear ring 22231 and a drive gear 22232. The gear ring 22231 is sleeved on the driving end 2222. The drive gear 22232 meshes with the gear ring 22231, and the drive gear 22232 is connected to the mounting plate 221.

[0052] Specifically, the gear ring 22231 is an annular gear with teeth on the outer side, fixedly sleeved on the drive end 2222 of the rotating shaft 222, and rotates synchronously with the rotating shaft 222. The driving gear 22232 is a small gear driven by the output shaft of a drive motor, such as a small servo motor or a stepper motor. In this embodiment, the driving gear 22232 is a rack and pinion structure, and the driving gear 22232 meshes with the gear ring 22231. The driving gear 22232 and its driven motor are fixedly mounted on the mounting plate 221 by a mounting bracket, thereby ensuring the stability of the meshing relationship.

[0053] In summary, the drive component 2223, fixedly mounted on the mounting plate 221, operates to drive the drive gear 22232 to move, thereby causing the gear ring 22231 meshing with the drive gear 22232 to rotate. Since the gear ring 22231 is fixedly sleeved on the drive end 2222 of the rotating shaft 222, the rotation of the gear ring 22231 is directly converted into the rotation of the rotating shaft 222. The rotating shaft 222 transmits the rotational motion to the support plate 24 through its output end 2221, ultimately driving the backlight body 10 fixed on the support plate 24 to achieve horizontal rotation.

[0054] The drive seat 231, fixed on the positioning plate 21, is activated, driving the lifting rod 232 to move linearly along its axial direction. The top end of the lifting rod 232 is fixedly connected to the mounting plate 221. Therefore, when the lifting rod 232 moves, it drives the entire mounting plate 221 and all components mounted on it, including the rotating shaft 222, the drive component 2223, the sliding wheel 223, the support plate 24, and the backlight body 10, to move vertically and synchronously as a whole.

[0055] Therefore, the backlight rotation mechanism 100 provided above is composed of a positioning plate 21, a rotating component 22, and a lifting component 23. By rotatably connecting one end of the rotating component 22 to the backlight body 10, the backlight body 10 can be flexibly rotated and adjusted in the horizontal direction. By arranging the lifting component 23 perpendicular to the positioning plate 21, with one end fixed to the positioning plate 21 and the other end tightly connected to the other end of the rotating component 22, the lifting component 23 can drive the rotating component 22 to move in the vertical direction, thereby achieving flexible adjustment of the backlight body 10 in three-dimensional space.

[0056] The above description is merely an embodiment of this application. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this application, but these improvements all fall within the protection scope of this application.

Claims

1. A backlight rotation mechanism, comprising a drive mechanism and a backlight body mounted on the drive mechanism, characterized in that, The drive mechanism includes: A positioning plate is spaced apart from the backlight body; A rotating component, one end of which is rotatably connected to the backlight body; A lifting assembly is arranged in a direction perpendicular to the positioning plate. One end of the lifting assembly is located on the positioning plate, and the other end of the lifting assembly is connected to the other end of the rotating assembly, so that the lifting assembly drives the rotating assembly to move.

2. The backlight rotation mechanism according to claim 1, characterized in that, The rotating component includes: A mounting plate is disposed between the lifting assembly and the backlight body; A rotating shaft passes through the mounting plate and is connected to the backlight body.

3. A backlight rotating mechanism according to claim 2, characterized in that, The moving mechanism further includes: a support plate, the backlight body is disposed on the support plate, the support plate is opposite to and spaced apart from the mounting plate, and the rotating shaft is connected to the support plate.

4. A backlight rotating mechanism according to claim 3, characterized in that, The rotating assembly also includes: Multiple sliding wheels are arranged circumferentially around the rotation axis and at equal intervals on the mounting plate; The plurality of sliding wheels are in contact with and roll on the surface of the support plate.

5. A backlight rotation mechanism according to claim 4, characterized in that, Each of the sliding wheels includes a support frame, the support frame is mounted on the mounting plate, the sliding wheel is mounted on the support frame, and the sliding wheel is spaced apart from the mounting plate.

6. A backlight rotating mechanism according to claim 2, characterized in that, The lifting assembly includes: The drive unit is mounted on the positioning plate; A lifting rod is provided along the height direction of the drive seat and is positioned opposite and spaced apart from the positioning plate. One end of the lifting rod is slidably connected to the drive seat, and the other end of the lifting rod is connected to the mounting plate.

7. A backlight rotating mechanism according to claim 3, characterized in that, The rotating shaft has an output end and a driving end. The output end is connected to the support plate, and the driving end is located on the side of the mounting plate opposite to the output end, and the driving end is located between the mounting plate and the positioning plate.

8. A backlight rotating mechanism according to claim 4, characterized in that, The number of the sliding wheels is four, and the included angle between any two adjacent sliding wheels in the circumferential direction is 90°.

9. A backlight rotating mechanism according to claim 7, characterized in that, The rotating shaft includes a driving element, which is located at the driving end.

10. A backlight rotating mechanism according to claim 9, characterized in that, The driving component includes: A gear ring, which is fitted onto the drive end; The driving gear meshes with the gear ring and is connected to the mounting plate.

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