Multi-degree-of-freedom rotating support of terminal electronic product

Abstract

The invention provides a multi-degree-of-freedom rotating bracket of a terminal electronic product, which comprises a lower bracket, an upper bracket and an upper bracket rotation driving device, and the upper bracket rotation driving device is arranged on the lower bracket; the upper support rotation driving device comprises an upper support rotation transmission structure, a left X-axis driving motor and a right X-axis driving motor. The two ends of the upper support rotating transmission structure are provided with a left X-axis rotating part and a right X-axis rotating part which share the same X-axis respectively, the upper support rotating transmission structure is provided with a Y-axis rotating part between the left X-axis rotating part and the right X-axis rotating part, and the upper support is provided with the Y-axis rotating part and rotates synchronously with the Y-axis rotating part. The left side X-axis rotating component and the right side X-axis rotating component are connected with a left side X-axis driving motor and a right side X-axis driving motor respectively, and the left side X-axis driving motor and the right side X-axis driving motor are both bidirectional motors. According to the invention, the X-axis and Y-axis rotation is carried out under the driving of the motor to automatically adjust the direction, and the automatic angle adjustment in the three-axis direction can be further realized.

Description

Technical Field

[0001] The present invention relates to a multi-degree-of-freedom rotating bracket for a terminal electronic product. The terminal electronic product may be a tablet computer, an antenna device, a radar device, a digital photo frame, a reversible device inside a car, etc. Background Art

[0002] For terminal electronic products such as tablets, antenna devices, radar devices, digital photo frames, and flip-up devices in automobiles, when mounted on a bracket, they require multi-directional angle adjustment. Currently, simultaneous motor-driven rotation of the X-axis and Y-axis is difficult to achieve, often requiring manual operation. Summary of the Invention

[0003] The purpose of the present invention is to provide a multi-degree-of-freedom rotating bracket for terminal electronic products, which uses a motor to automatically adjust the direction of rotation on the X and Y axes, and can further achieve automatic angle adjustment along the three axes. To this end, the present invention adopts the following technical solutions: A multi-degree-of-freedom rotating bracket for a terminal electronic product includes a lower bracket, characterized in that the multi-degree-of-freedom rotating bracket is also provided with an upper bracket and an upper bracket rotation driving device, the upper bracket is rotatably located on the lower bracket; the upper bracket rotation driving device is installed on the lower bracket; the upper bracket rotation driving device includes an upper bracket rotation transmission structure, a left X-axis drive motor and a right X-axis drive motor; the two ends of the upper bracket rotation transmission structure are respectively a left X-axis rotating component and a right X-axis rotating component of the same X-axis, the upper bracket rotation transmission structure is provided with a Y-axis rotating component between the left X-axis rotating component and the right X-axis rotating component, the upper bracket is provided with the Y-axis rotating component and rotates synchronously; the left X-axis rotating component and the right X-axis rotating component are respectively connected to the left X-axis drive motor and the right X-axis drive motor, and the left X-axis drive motor and the right X-axis drive motor are bidirectional motors.

[0004] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions, or use these further technical solutions in combination: The lower bracket is provided with a left shaft and a right shaft, and the upper bracket is provided with a left shaft sleeve and a right shaft sleeve, which are respectively sleeved outside the left shaft and the right shaft to form a rotation connection.

[0005] The left and right shafts are respectively the left and right hollow shafts. The left and right X-axis rotating components of the upper support rotation transmission structure are provided with guide posts extending through the left and right hollow shafts, respectively, and are rotationally connected to the left and right hollow shafts, respectively. The upper support rotation transmission structure is also provided with a Y-axis physical axis. The X-axis physical axis is located between the left and right X-axis rotating components and is rotationally connected to the left and right X-axis rotating components.

[0006] The upper bracket rotation transmission structure is a gear transmission structure.

[0007] The left X-axis rotating component and the right X-axis rotating component are identical bevel gears with opposite directions, and the Y-axis rotating component is a third bevel gear meshing with the left and right bevel gears.

[0008] The left X-axis drive motor and the right X-axis drive motor are respectively connected to two ends of the upper bracket rotation transmission structure through a gearbox, and the gearbox is fixed on the lower bracket.

[0009] The left X-axis drive motor and the right X-axis drive motor are respectively provided with encoders, which monitor the position and number of rotations of the motor's rotating shaft and transmit the information to the control circuit. The control circuit processes the information transmitted by the encoder and issues speed and direction instructions to the motor.

[0010] The multi-degree-of-freedom rotating bracket is provided with a Z-axis drive motor and a hollow column. The lower part of the lower bracket is provided with a rotating shaft connected to the Z-axis drive motor so as to be able to rotate relative to the hollow column about the Z-axis. The multi-degree-of-freedom rotating bracket is also provided with an electric slip ring, which is arranged in the hollow column. The upper part of the lower bracket is provided with a wiring hole corresponding to the hollow column. The cable above the electric slip ring passes through the hollow column and the wiring hole to exit the lower bracket, and the cable above the electric slip ring is connected to the cable below the electric slip ring through the electric slip ring.

[0011] An electric slip ring bracket is arranged in the hollow column, the electric slip ring is fixedly connected to the electric slip ring bracket, the Z-axis drive motor and the electric slip ring bracket are connected to the hollow column through a connecting structure, and the rotating shaft of the Z-axis drive motor passes through the center hole of the electric slip ring and is connected to the rotating shaft of the lower bracket.

[0012] The Z-axis drive motor is equipped with an encoder that monitors the position of the motor's rotating shaft and the number of revolutions, and transmits the information to the control circuit. The control circuit processes the information transmitted by the encoder and issues speed and direction instructions to the motor.

[0013] Due to the adoption of the technical solution of the present invention, the present invention has a simple structure, and can be controlled and driven by a motor to smoothly adjust the pitch rotation angle and rotate with an axis perpendicular to the current tilt surface, so as to realize electric-driven automatic XY-axis rotation adjustment, which is easy to operate and has a good user experience. Combined with the rotation adjustment of the Z axis, it can realize automatic adjustment of the angle in the three-axis direction. Furthermore, by combining the installation of an electric slip ring, the upper and lower wires can always remain in a conductive state without distortion when the upper body rotates infinitely. The present invention can be applied to the brackets of terminal electronic products such as tablet computer supports, digital photo frame supports, flip-up devices inside cars, and space target tracking, so as to automatically adjust the related equipment in multiple directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an exploded view of an embodiment of a multi-degree-of-freedom rotating bracket for a portable product provided by the present invention.

[0015] Figure 2 for Figure 1 Front view of the illustrated embodiment.

[0016] Figure 3 for Figure 1 Bottom view of the illustrated embodiment.

[0017] Figure 4 for Figure 1 Side view of the illustrated embodiment. DETAILED DESCRIPTION

[0018] Referring to the accompanying drawings, the present invention provides a multi-degree-of-freedom rotating bracket for a terminal electronic product, comprising a lower bracket 1, an upper bracket 2, and an upper bracket rotating drive device, wherein the upper bracket 2 is rotatably located above the lower bracket 1; the upper bracket rotating drive device is mounted above the lower bracket 1; the upper bracket rotating drive device comprises an upper bracket rotating transmission structure, a left X-axis driving motor 31, and a right X-axis driving motor 32; the upper bracket rotating transmission structure has a left X-axis rotating component 41 and a right X-axis rotating component 42 on the same X-axis at both ends, the upper bracket rotating transmission structure is provided with a Y-axis rotating component 43 between the left X-axis rotating component 41 and the right X-axis rotating component 42, the upper bracket 2 is provided with the Y-axis rotating component 43 and rotates synchronously; the left X-axis rotating component 41 and the right X-axis rotating component 42 are respectively connected to the left X-axis driving motor 31 and the right X-axis driving motor 32, and the left X-axis driving motor 31 and the right X-axis driving motor 32 are bidirectional motors.

[0019] The lower bracket 1 is provided with a left hollow shaft 11 and a right hollow shaft 12, and the upper bracket 2 is provided with a left shaft sleeve 21 and a right shaft sleeve 22, which are respectively sleeved outside the left hollow shaft 11 and the right hollow shaft 12 to form a rotational connection. This is an optimal connection structure, which can make each structure more compact. The left X-axis rotating component 41 and the right X-axis rotating component 42 of the upper bracket rotation transmission structure are respectively provided with guide columns 411 and 421 passing through the left hollow shaft 11 and the right hollow shaft 12, and are respectively rotationally connected with the left hollow shaft 11 and the right hollow shaft 12 to form an inside-outside overlapping structure.

[0020] The upper bracket rotation transmission structure is further provided with an X-axis physical axis 5 , and the Y-axis physical axis 5 is located between the left X-axis rotation component 41 and the right X-axis rotation component 42 , and is rotationally connected to the left X-axis rotation component 41 and the right X-axis rotation component 42 .

[0021] The upper bracket rotation transmission structure is preferably a gear transmission structure, and can also adopt a cam transmission mechanism or a guide rail connection structure or a threaded connection structure. Using the cam transmission structure, parts manufacturing is more convenient and the precision is also good.

[0022] The gear transmission structure can adopt a three-gear structure, the left X-axis rotating component 41 and the right X-axis rotating component 42 are identical but opposite-direction bevel gears, the Y-axis rotating component 43 is a third bevel gear meshing with the left and right bevel gears, and the third bevel gear can be installed at the lower end of the upper bracket 2 by screw connection.

[0023] The left X-axis drive motor 31 and the right X-axis drive motor 32 are connected to two ends of the upper bracket rotation transmission structure through gearboxes 311 and 321 respectively. The gearboxes 311 and 321 are fixed on the lower bracket 1.

[0024] The left X-axis drive motor 31 and the right X-axis drive motor 32 are the power sources for the rotation of the bevel gears, that is, the rotation of the X-axis and the Y-axis, and are responsible for driving the rotation of the bevel gears. The left X-axis drive motor 31 and the right X-axis drive motor 32 are respectively provided with encoders, which monitor the position and number of rotations of the motor's rotating shaft and transmit the information to the control circuit. The control circuit and the encoder are integrated on the PCB board behind the motor, which processes the information transmitted by the encoder and issues instructions such as speed and direction to the motor.

[0025] The upper bracket 2 is the support platform for the terminal electronic product. When the terminal electronic product needs to change its pitch angle (for example, to tilt the screen or adjust the antenna angle), that is, when the upper bracket is rotated along the X-axis, the left X-axis drive motor 31 and the right X-axis drive motor 32 are rotated synchronously in the same direction. At this time, the three bevel gears rotate without meshing. The upper bracket 2 pitches around the X-axis physical axis 5 through the forward and reverse rotation of the motor. When the Y-axis rotation is required (for example, to switch the screen from landscape to portrait or adjust the antenna angle), that is, when the upper bracket is rotated along the Y-axis, the left X-axis drive motor 31 and the right X-axis drive motor 32 are rotated synchronously in opposite directions. At this time, the middle bevel gear rotates and meshes, rotating around the Y-axis.

[0026] The multi-degree-of-freedom rotating bracket is equipped with a Z-axis drive motor 6 and a hollow column 7. A rotating shaft 13 is provided at the bottom of the lower bracket 1, connected to the Z-axis drive motor 6 and capable of Z-axis rotation relative to the hollow column 7. The multi-degree-of-freedom rotating bracket is also equipped with an electric slip ring 8, which is installed within the hollow column 7. A wiring hole 14 is provided at the top of the lower bracket 1, corresponding to the hollow column 7. A cable 101 (such as a Type-C cable) passes through the hollow column 7 and the wiring hole 14 and out of the lower bracket 1. The cable 101 above the electric slip ring 8 is connected to the cable 102 below the electric slip ring through the electric slip ring 8. The internal annular layered structure of the electric slip ring ensures that the upper and lower wires remain conductive during Z-axis rotation of the lower bracket, without any obstruction or twisting.

[0027] An electric slip ring bracket 80 is disposed within the hollow column 7. The electric slip ring 8 is fixedly connected to the electric slip ring bracket 80. For example, the electric slip ring bracket 80 is cylindrical, and the electric slip ring 8 is connected to the inner wall of the cylinder through an interference fit. The Z-axis drive motor 6 and the electric slip ring bracket 80 are connected to the hollow column 7 via a connecting structure, such as a central connecting ring 70. The central connecting ring 70 is screwed to the hollow column 7. The reduction gearbox 60 of the Z-axis drive motor 6 and the electric slip ring bracket 80 are respectively connected to the central connecting ring 70 via screws. The rotating shaft 61 of the Z-axis drive motor 6 passes through the center hole of the electric slip ring 8 and is connected to the rotating shaft 13 of the lower bracket 1.

[0028] The Z-axis drive motor 6 is also provided with an encoder, which monitors the position and number of revolutions of the motor shaft and transmits the information to the control circuit. The control circuit processes the information transmitted by the encoder and issues speed and direction instructions to the motor.

[0029] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the field of the present invention are included in the protection scope of the present invention.

[0030] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] In the description of the present invention, it should be understood that terms such as "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "first" and "second" are used solely for brevity and are not intended to indicate or imply relative importance.

Claims

1. A multi-degree-of-freedom rotating bracket for a terminal electronic product, comprising a lower bracket, characterized in that The multi-degree-of-freedom rotating bracket is further provided with an upper bracket and an upper bracket rotation driving device, wherein the upper bracket is rotatably located above the lower bracket; The upper bracket rotation driving device is installed on the lower bracket; The upper bracket rotation drive device includes an upper bracket rotation transmission structure, a left X-axis drive motor and a right X-axis drive motor; the two ends of the upper bracket rotation transmission structure are respectively a left X-axis rotation component and a right X-axis rotation component sharing the same X-axis, the upper bracket rotation transmission structure is provided with a Y-axis rotation component between the left X-axis rotation component and the right X-axis rotation component, the upper bracket is provided with the Y-axis rotation component and rotates synchronously; the left X-axis rotation component and the right X-axis rotation component are respectively connected to the left X-axis drive motor and the right X-axis drive motor, and the left X-axis drive motor and the right X-axis drive motor are bidirectional motors.

2. A multi-degree-of-freedom rotating bracket for a terminal electronic product according to claim 1, characterized in that The lower bracket is provided with a left shaft and a right shaft, and the upper bracket is provided with a left shaft sleeve and a right shaft sleeve, which are respectively sleeved outside the left shaft and the right shaft to form a rotation connection.

3. A multi-degree-of-freedom rotating bracket for a terminal electronic product as claimed in claim 2, characterized in that The left shaft and the right shaft are respectively a left hollow shaft and a right hollow shaft; The left X-axis rotating component and the right X-axis rotating component of the upper bracket rotation transmission structure are respectively provided with guide columns passing through the left hollow shaft and the right hollow shaft, and are respectively rotatably connected to the left hollow shaft and the right hollow shaft; The upper bracket rotation transmission structure is further provided with a Y-direction physical axis, and the X-direction physical axis is located between the left X-axis rotation component and the right X-axis rotation component, and is rotationally connected to the left X-axis rotation component and the right X-axis rotation component.

4. The multi-degree-of-freedom rotating bracket for terminal electronic products according to claim 1, characterized in that The upper bracket rotation transmission structure is a gear transmission structure.

5. A multi-degree-of-freedom rotating bracket for a terminal electronic product as claimed in claim 4, characterized in that The left X-axis rotating component and the right X-axis rotating component are identical bevel gears with opposite directions, and the Y-axis rotating component is a third bevel gear meshing with the left and right bevel gears.

6. The multi-degree-of-freedom rotating bracket for terminal electronic products according to claim 1, characterized in that The left X-axis drive motor and the right X-axis drive motor are respectively connected to two ends of the upper bracket rotation transmission structure through a gearbox, and the gearbox is fixed on the lower bracket.

7. The multi-degree-of-freedom rotating bracket for a terminal electronic product according to claim 1, characterized in that The left X-axis drive motor and the right X-axis drive motor are respectively provided with encoders, which monitor the position and number of rotations of the motor's rotating shaft and transmit the information to the control circuit. The control circuit processes the information transmitted by the encoder and issues speed and direction instructions to the motor.

8. The multi-degree-of-freedom rotating bracket for terminal electronic products according to claim 1, characterized in that The multi-degree-of-freedom rotating bracket is provided with a Z-axis drive motor and a hollow column. The lower part of the lower bracket is provided with a rotating shaft connected to the Z-axis drive motor so as to be able to rotate relative to the hollow column about the Z-axis. The multi-degree-of-freedom rotating bracket is also provided with an electric slip ring, which is arranged in the hollow column. The upper part of the lower bracket is provided with a wiring hole corresponding to the hollow column. The cable above the electric slip ring passes through the hollow column and the wiring hole to exit the lower bracket, and the cable above the electric slip ring is connected to the cable below the electric slip ring through the electric slip ring.

9. The multi-degree-of-freedom rotating bracket of a terminal electronic product according to claim 8, characterized in that An electric slip ring bracket is arranged in the hollow column, the electric slip ring is fixedly connected to the electric slip ring bracket, the Z-axis drive motor and the electric slip ring bracket are connected to the hollow column through a connecting structure, and the rotating shaft of the Z-axis drive motor passes through the center hole of the electric slip ring and is connected to the rotating shaft of the lower bracket.

10. The multi-degree-of-freedom rotating bracket for a terminal electronic product according to claim 9, characterized in that The Z-axis drive motor is equipped with an encoder that monitors the position of the motor's rotating shaft and the number of revolutions, and transmits the information to the control circuit. The control circuit processes the information transmitted by the encoder and issues speed and direction instructions to the motor.

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