WO2021043247A1

WO2021043247A1 - Lever-type internal-folding synchronous rotation mechanism

Info

Publication number: WO2021043247A1
Application number: PCT/CN2020/113425
Authority: WO
Inventors: 文秀江
Original assignee: 东莞市劲丰电子有限公司
Priority date: 2019-09-04
Filing date: 2020-09-04
Publication date: 2021-03-11
Also published as: CN110552953A

Abstract

Provided is a lever-type internal-folding synchronous rotation mechanism; the main body of the structure comprises a connecting positioning mechanism (1), and a rotation unit (2) and compensation mechanism (3) arranged in combination therewith; the rotation unit (2) is a gear synchronization unit (201) or a link synchronization unit (202), and the connecting positioning mechanism (1) comprises a connecting positioning movable frame (4) at the end part; the rotation unit (2) comprises a middle gear set (5), an elastic block (6), a lever block (7), and a rotating movable frame (8) combined therewith, the rotating movable frame (8) being symmetrically distributed on the two sides; the lever block (7) concomitantly rotates the gear set (5) and the rotating movable frame (8) to achieve synchronous rotation of 0°-180° by means of the principle of leverage, and connects with a semi-circular arc tube position to achieve synchronous rotation; the gear set (5) comprises a gear (9) and a gear rack block (10) distributed symmetrically on the two sides, and the compensation mechanism (3) consists of a sliding connection between the rotating movable frame (8) and a slide groove movable frame (11) to perform screen compensation.

Description

Lever type internal folding synchronous rotation mechanism

Technical field

The invention relates to the technical field of rotating shaft design, in particular to a lever-type inward folding synchronous rotating mechanism.

Background technique

Folding screens at this stage specifically refer to the folding of the entire screen or the use of a split or split screen, and generally refers to the OLED screen. At present, the screen itself has met the bending needs, but it is necessary to directly associate the screen with electronic products, that is, to apply the screen to electronic products, such as mobile phones, not only for the high requirements of the screen, how to ensure that the screen is normal There is no malfunction during use, and it does not affect the normal bending of the screen. It needs a special mechanical structure to realize it.

According to the use of the folding screen, it can be divided into two types: internal folding and external folding. Both internal folding and external folding need to meet the above technical conditions. Correspondingly, the card point, limit, and damping torsion also need to be considered comprehensively, especially not because of auxiliary The layout of the structural parts affects the screen. The screen cannot be damaged or the shape of the entire electronic device. That is, without affecting the quality of the screen, the life of the screen and the overall product deformation, the auxiliary screen needs a rigorous hinge mechanism to achieve its functions. .

Considering comprehensively, the design of the rotating shaft needs to meet the bending needs, and the processing of the rotating shaft needs to consider the control and cost of machining accuracy. Therefore, the rotating shaft with low processing difficulty and relatively few parts can meet the applicable needs.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings in the prior art and provide a lever-type inward folding synchronous rotation mechanism.

In order to achieve the above objectives, the present invention adopts the following technical solutions:

The lever-type inward-folding synchronous rotating mechanism includes a structural main body including a connecting positioning mechanism, a rotating unit and a compensating mechanism combined with it, and the rotating unit is one of a gear synchronization unit or a connecting rod synchronization unit, so The connecting positioning unit includes a connecting positioning movable frame at the end; the rotating unit includes a middle gear set, an elastic block, a lever block, and a rotating movable frame combined with it, and the rotating movable frame is symmetrically distributed on both sides; The lever block links the gear set and the rotating movable frame to achieve 0-180 degrees synchronous rotation through the principle of lever, and the semi-circular arc tube position connection realizes synchronous rotation; the gear set includes gears and bilaterally symmetrically distributed rack blocks, so The compensation mechanism is composed of a sliding connection between a rotating movable frame and a sliding groove movable frame to realize screen compensation.

Particularly, grooves are provided on both sides of the rotating movable frame, and the elastic block and the groove are combined and connected to realize torsion and elasticity, and the locking point can be stopped in a 180-degree rotation state.

Particularly, the rotation unit is a gear synchronization unit, the rack block is provided with a transverse locking tooth and a longitudinal locking tooth, the rotating movable frame is provided with a half gear, and the transverse locking tooth meshes with the gear Synchronous rotation between 0 degrees and 180 degrees is realized, and the longitudinal locking teeth mesh with the half gears to realize synchronous rotation between 0 degrees and 180 degrees.

In particular, the rotation unit is a connecting rod synchronization unit, and the lever block is composed of a first connecting rod and a second connecting rod that are symmetrically distributed on both sides, and the first connecting rod realizes 0-180 degree synchronous rotation through the principle of lever. The second connecting rod is connected with the semi-circular arc tube position of the rotating movable frame, and is connected with the first connecting rod to realize synchronous rotation of 0 degrees to 180 degrees.

Particularly, the structure body further includes a package body composed of an outer package and a bottom package, and both the outer package and the bottom package are fixedly connected by screws.

Particularly, the rotating movable frame is provided with a sliding block, and the sliding groove movable frame is provided with a sliding groove, and the sliding block and the sliding groove are slidably connected to realize screen compensation.

The beneficial effects of the present invention are: the lever-type inward-folding synchronous rotation mechanism provided by the present invention realizes bending through the rotation of the mechanism, uses gear sets to complete rotation synchronization, and sets the lever block to use the principle of leverage to achieve 0-180 degree rotation and bending , Realize connection positioning and screen compensation through the sliding assistance of the chute and the slider to ensure its bending accuracy. The overall structure design is simpler and more effective. It does not need extra auxiliary parts and simultaneously meets the synchronization and bending movement. Full consideration of flexible screen OCA Pulling and passive resetting in the bending process realize the rapid and active resetting of the laminate through the compensation mechanism, which improves the service life of the screen and increases the user experience while compensating for the manufacturing process.

Description of the drawings

Fig. 1 is a 180-degree overall structure diagram of the lever-type inward-folding synchronous rotation mechanism of the present invention.

Figure 2 is a 0-degree overall structure diagram of the lever-type inward-folding synchronous rotation mechanism of the present invention.

Fig. 3 is a 90-degree state diagram of the lever-type inward-folding synchronous rotation mechanism of the present invention.

Fig. 4 is a structural diagram of the rotating shaft in the lever-type inward-folding synchronous rotating mechanism of the present invention.

Fig. 5 is another structural diagram of the rotating shaft in the lever-type inward-folding synchronous rotating mechanism of the present invention.

Fig. 6 is one of the exploded views of the rotating shaft structure of the lever-type inward-folding synchronous rotating mechanism of the present invention.

Fig. 7 is the second exploded view of the shaft structure of the lever-type inward-folding synchronous rotation mechanism of the present invention.

Fig. 8 is the third exploded view of the rotating shaft structure of the lever-type inward-folding synchronous rotating mechanism of the present invention.

Fig. 9 is the fourth exploded view of the rotating shaft structure of the lever-type inward-folding synchronous rotating mechanism of the present invention.

Figure 10 is one of the overall exploded views of the lever-type inward-folding synchronous rotation mechanism of the present invention.

Fig. 11 is the second exploded view of the lever-type inward-folding synchronous rotation mechanism of the present invention.

detailed description

The present invention will be further explained below in conjunction with the drawings in the specification:

Example 1:

As shown in Figures 1-11, the lever-type inward-folding synchronous rotation mechanism disclosed in this embodiment includes a structural main body that includes a connecting positioning mechanism 1 and a rotating unit 2 and a compensation mechanism 3 combined with it. The rotating unit 2 is one of the gear synchronization unit 201 or the connecting rod synchronization unit 202. The connecting positioning unit 2 includes an end connecting positioning movable frame 4; the rotating unit 2 includes a middle gear set 5 and an elastic block 6 , The lever block 7 and the rotating movable frame 8 connected with it, the rotating movable frame 8 is distributed symmetrically on both sides; the lever block 7 links the gear set 5 and the rotating movable frame 8 to achieve 0-180 degrees through the principle of leverage Synchronous rotation, and the semi-circular arc tube position connection realizes synchronous rotation; the gear set 5 includes a gear 9 and a rack block 10 symmetrically distributed on both sides, and the compensation mechanism 3 is slidably connected by a rotating movable frame 8 and a sliding groove movable frame 11 Composition to achieve screen compensation.

The applicant declares that on the basis of the above-mentioned embodiments, those skilled in the art combine certain steps of the above-mentioned embodiments with the technical solutions in the content of the invention to produce a new method which is also one of the scope of the present invention. In order to make the description concise, this application will not list other implementations of these steps.

In the above embodiment, as shown in Figures 1-11, the rotating movable frame 8 is provided with grooves 84 on both sides, and the elastic block 6 is combined with the groove 84 to realize torsion and elasticity, and rotates at 180 degrees. The state realizes the stuck stop.

The rotating unit 2 is a gear synchronization unit 201, the rack block 10 is provided with a horizontal locking tooth 101 and a longitudinal locking tooth 102, the rotating movable frame 8 is provided with a half gear 81, and the horizontal locking tooth 101 It meshes with the gear 9 to achieve 0-180 degree synchronous rotation, and the longitudinal tooth 102 meshes with the half gear 81 to achieve 0-180 degree synchronous rotation.

The rotating unit 2 is a connecting rod synchronization unit 202, and the lever block 7 is composed of a first connecting rod 12 and a second connecting rod 13 that are symmetrically distributed on both sides. The first connecting rod 12 realizes 0 degree-180 through the principle of lever. The second connecting rod 13 is connected to the semi-circular arc tube position of the rotating movable frame 8, and is connected to the first connecting rod 12 to realize 0-180 degree synchronous rotation.

The structure body further includes a package body 14 composed of an outer package 15 and a bottom package 16, and both the outer package 15 and the bottom package 16 are fixedly connected by screws 17. The rotating movable frame 8 is provided with a sliding block 82, and the sliding groove movable frame 11 is provided with a sliding groove 111, and the sliding block 82 is slidably connected with the sliding groove 111 to realize screen compensation.

The applicant further declares that the present invention uses the above-mentioned embodiments to illustrate the implementation method and device structure of the present invention, but the present invention is not limited to the above-mentioned embodiments, which does not mean that the present invention must rely on the above-mentioned methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the selected implementation method of the present invention, addition of steps, selection of specific methods, etc. fall within the scope of protection and disclosure of the present invention.

Technical principle of this embodiment:

The bending is realized by the rotation of the mechanism, the rotation synchronization is completed by the gear set, and the lever block is set to use the principle of leverage to achieve 0-180 degree rotation and bending, and the sliding groove and the sliding block are assisted to achieve connection positioning and screen compensation to ensure its Bending accuracy, the overall structure design is simpler and more effective, without extra auxiliary parts, while simultaneously meeting the synchronization and bending motions, fully considering the pulling and passive resetting of the flexible screen OCA during the bending process, and realizing the rapid and active reset of the laminate through the compensation mechanism , Improve the service life of the screen, and increase the user experience, while compensating for the manufacturing process.

The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention. Therefore, without departing from the design spirit of the present invention, those of ordinary skill in the art will understand the structure, features and principles of the present invention. All equivalent changes or decorations made should fall within the protection scope of the patent application of the present invention.

Claims

The lever-type inward-folding synchronous rotation mechanism is characterized in that it includes a structure body, the structure body includes a connecting positioning mechanism, a rotation unit and a compensation mechanism combined with it, and the rotation unit is a gear synchronization unit or a connecting rod synchronization unit In one, the connecting positioning unit includes a connecting positioning movable frame at the end; the rotating unit includes a middle gear set, an elastic block, a lever block and a rotating movable frame connected with it, and the rotating movable frame is bilaterally symmetrical Distribution; the lever block links the gear set and the rotating movable frame to achieve 0-180 degrees synchronous rotation through the principle of lever, and the semi-circular arc tube position connection realizes synchronous rotation; the gear set includes gears and bilaterally symmetrically distributed teeth Bar, the compensation mechanism is composed of a sliding connection between a rotating movable frame and a sliding groove movable frame to realize screen compensation.
The lever-type inward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The two sides of the rotating movable frame are provided with grooves, and the elastic block is combined with the groove to realize torsion and elasticity, and realizes the locking point stop and retreat in the 180-degree rotation state.
The lever-type inward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The rotation unit is a gear synchronization unit, the rack block is provided with a transverse locking tooth and a longitudinal locking tooth respectively, the rotating movable frame is provided with a half gear, and the transverse locking tooth meshes with the gear to achieve 0 degree -180 degree synchronous rotation, the longitudinal locking tooth meshes with the half gear to realize 0 degree-180 degree synchronous rotation.
The lever-type inward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The rotation unit is a connecting rod synchronization unit, the lever block is composed of a first connecting rod and a second connecting rod that are symmetrically distributed on both sides, and the first connecting rod realizes 0-180 degree synchronous rotation through the principle of lever. The second connecting rod is connected with the semi-circular arc tube position of the rotating movable frame, and is connected with the first connecting rod to realize synchronous rotation of 0 degrees to 180 degrees.
The lever-type inward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The structure body also includes a package body composed of an outer package and a bottom package, and both the outer package and the bottom package are fixedly connected by screws.
The lever-type inward-folding synchronous rotation mechanism according to claim 1, characterized in that:

The rotating movable frame is provided with a sliding block, and the sliding groove movable frame is provided with a sliding groove, and the sliding block and the sliding groove are slidably connected to realize screen compensation.