CN114776694B

CN114776694B - Rotating shaft mechanism and electronic equipment

Info

Publication number: CN114776694B
Application number: CN202210191570.8A
Authority: CN
Inventors: 杨喆; 王新宇; 周鹏飞
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2023-11-24
Anticipated expiration: 2042-02-28
Also published as: CN114776694A

Abstract

The disclosure provides a rotating shaft mechanism and electronic equipment, and belongs to the field of electronic equipment. The rotating shaft mechanism comprises a base and two supporting components; the support assembly comprises a rotating plate, a sliding plate, a linkage piece and a shell driving plate; the rotating plate is pivoted with the base; the sliding plate and the shell driving plate are positioned on two opposite sides of the rotating plate, the sliding plate is provided with a first driving groove, the shell driving plate is provided with a second driving groove, and at least one of the first driving groove and the second driving groove is an arc-shaped groove; the linkage piece comprises a main body, a first pin shaft and a second pin shaft, wherein the first pin shaft and the second pin shaft are respectively positioned in the first driving groove and the second driving groove, and the linkage piece is used for enabling the sliding plate to be in linkage with the shell driving plate. The movement of the shell driving plate is variable, so that the stress born by the flexible display panel in the folding process can be matched better, and the flexible display panel is prevented from being raised or pulled.

Description

Rotating shaft mechanism and electronic equipment

Technical Field

The disclosure relates to the field of electronic devices, and in particular relates to a rotating shaft mechanism and an electronic device.

Background

An electronic device that is foldable outward generally includes a flexible display panel, a hinge mechanism, and two housings. The two shells are connected to the two sides of the rotating shaft mechanism, and the flexible display panel is positioned on the two shells. The two shells can be opened and closed relatively. When the electronic equipment is in a flattened state, the two shells are unfolded, and the flexible display panel is flatly laid on the two shells and the rotating shaft mechanism; when the electronic equipment is in a folding state, the two shells are folded, the flexible display panel is folded, and the two shells are positioned between the two folded parts of the flexible display panel.

In the process from the flattened state to the folded state, the two shells can cause pulling to the flexible display panel, so that the flexible display panel generates certain stress. In order to reduce the stress, the two shells slide towards the rotating shaft mechanism in the folding process. In the related art, the movement of the two shells is uniform, that is, the electronic device is in a state of different included angles, the two shells rotate by the same angle relatively, and the sliding distance of the two shells relative to the rotating shaft mechanism is the same, so that the stress of the flexible display panel cannot be well matched, the middle part of the flexible display panel can be separated from the rotating shaft mechanism to bulge when the folding angle is smaller, and the flexible display panel can be pulled when the folding angle is larger.

Disclosure of Invention

The embodiment of the disclosure provides a rotating shaft mechanism and electronic equipment, which can prevent a flexible display panel from being raised or pulled. The technical scheme is as follows:

in a first aspect, embodiments of the present disclosure provide a rotating shaft mechanism, where the rotating shaft mechanism includes a base and two support assemblies, where the two support assemblies are respectively connected to two sides of the base;

the support assembly comprises a rotating plate, a sliding plate, a linkage piece and a shell driving plate;

the rotating plate is pivoted with the base;

the sliding plate and the shell driving plate are positioned on two opposite sides of the rotating plate, are respectively connected with the rotating plate and can slide along the direction approaching to or separating from the base relative to the rotating plate, the sliding plate is provided with a first driving groove, the shell driving plate is provided with a second driving groove, and at least one of the first driving groove and the second driving groove is an arc-shaped groove;

the linkage piece comprises a main body, a first pin shaft and a second pin shaft, wherein the main body is positioned between the sliding plate and the shell driving plate and is in rotary connection with the rotating plate, the first pin shaft and the second pin shaft are positioned on two sides of the main body and are respectively positioned in the first driving groove and the second driving groove, and the linkage piece is used for enabling the sliding plate and the shell driving plate to be in linkage.

Optionally, an included angle between the connecting line at two ends of the arc-shaped groove and the rotation axis of the rotating plate is 50-80 degrees.

Optionally, one of the first driving groove and the second driving groove is a bar-shaped groove.

Optionally, the extending direction of the strip-shaped groove is parallel to the rotation axis of the rotating plate; or,

the extending direction of the strip-shaped groove and the included angle of the rotating axis of the rotating plate are acute angles.

Optionally, the first driving groove and the second driving groove are arc-shaped grooves.

Optionally, the distance from the first pin to the rotational axis of the main body is less than or equal to the distance from the second pin to the rotational axis of the main body.

Optionally, the rotating plate is provided with a pin hole, the shell driving plate is further provided with a first guide groove, and the extending direction of the first guide groove is perpendicular to the rotating axis of the rotating plate;

the linkage piece further comprises a third pin shaft, the third pin shaft and the second pin shaft are located on the same side of the main body, and the third pin shaft is located in the pin hole and extends into the first guide groove.

Optionally, a bump is arranged on one surface of the rotating plate, which is close to the sliding plate;

the sliding plate is provided with a second guide groove, the second guide groove extends from one side of the sliding plate, which is close to the base, to the other side, and the protruding block is located in the second guide groove.

In a second aspect, embodiments of the present disclosure further provide an electronic device including two housings and any one of the foregoing spindle mechanisms, where the two housings are respectively connected to housing driving boards of two support assemblies of the spindle mechanism.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that at least:

the sliding plate and the shell driving plate are linked through the linkage piece, when the sliding plate slides relative to the rotating plate, the first driving groove is matched with the first pin shaft to drive the linkage piece to rotate, and then the second pin shaft is matched with the second driving groove to drive the shell driving plate to slide relative to the rotating plate. Through setting at least one of two drive slots as the arc wall, for example set up the second drive slot as the arc wall, second round pin axle and arc wall effect when driving the casing drive plate, make the removal of second round pin axle relative casing drive plate have the component in the direction of movement of casing drive plate to the second round pin axle moves to the different positions of arc wall, and the size of component is also different, thereby makes the motion of casing drive plate be variable, can match the stress that flexible display panel received in the folding process better, avoids flexible display panel to bulge or receive to pull. Similarly, the first driving groove is arranged as an arc groove, so that the shell driving plate can move in a variable speed manner.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a folding process of an electronic device in the related art;

FIG. 3 is a schematic diagram of a folding process of an electronic device according to the related art;

FIG. 4 is a schematic structural view of a spindle mechanism according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a spindle mechanism according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural view of a spindle mechanism according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural view of a base provided in an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of an assembly of a rotating plate and a linkage provided in an embodiment of the present disclosure;

FIG. 9 is a schematic structural view of a support assembly provided by an embodiment of the present disclosure;

FIG. 10 is a schematic structural view of a support assembly provided by an embodiment of the present disclosure;

FIG. 11 is a schematic structural view of a support assembly provided by an embodiment of the present disclosure;

FIG. 12 is a schematic illustration of a housing motion profile provided by an embodiment of the present disclosure;

fig. 13 is an assembly schematic diagram of a sliding plate and a rotating plate according to an embodiment of the disclosure.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details the embodiments of the present disclosure with reference to the accompanying drawings.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in fig. 1, an embodiment of the present disclosure provides an electronic device, which may be, but not limited to, a mobile phone or a tablet computer. In the embodiment of the disclosure, a mobile phone is taken as an example for illustration. The electronic apparatus includes a flexible display panel 1000, a hinge mechanism 2000, and two cases 3000. The hinge mechanism 2000 and the two cases 3000 are located on the same side of the flexible display panel 1000. The two cases 3000 are located on both sides of the rotation shaft mechanism 2000 and are connected to the rotation shaft mechanism 2000. The two cases 3000 are also connected to the flexible display panel 1000. The two cases 3000 can be opened and closed relatively, and the flexible display panel 1000 is driven during the opening and closing process. When the electronic apparatus is in the flattened state, the two housings 3000 are unfolded, and the flexible display panel 1000 is flattened on the two housings 3000 and the rotation shaft mechanism 2000.

Fig. 2 and 3 are schematic diagrams of a folding process of an electronic device in the related art. The electronic device is an electronic device which can be folded outwards. During the folding process, as shown by the arrow in fig. 2, the two cases 3000 slide in a direction approaching the rotation shaft mechanism 2000. In the electronic device in the state of different included angles, the two housings 3000 rotate by the same angle, and the sliding distance of the housings 3000 relative to the rotating shaft mechanism 2000 is the same. For example, from a flattened state, i.e., when two housings 3000 are 180 °, each rotated 10 °, to 160 ° of two housings 3000; when the angle between the two housings 3000 is 90 °, each of the two housings 3000 is rotated 10 ° to 70 °. In both processes, the distance that the housing 3000 slides relative to the spindle mechanism 2000 is the same. This results in the electronic device being raised when it is just folded, for example, as shown in fig. 2, in which the middle portion of the flexible display panel 1000 is separated from the hinge mechanism 2000. After being folded at a certain angle, as shown in fig. 3, the two cases 3000 pull the flexible display panel 1000, so that the flexible display panel 1000 is subjected to a larger stress. Repeated bulging and pulling of the flexible display panel 1000 may cause damage to the flexible display panel 1000, shortening the service life of the electronic device.

The disclosed embodiments provide a hinge mechanism 2000 capable of reducing or avoiding repeated swelling and pulling of a flexible display panel 1000, which is advantageous for prolonging the service life of an electronic device. Fig. 4 is a schematic structural diagram of a spindle mechanism according to an embodiment of the present disclosure. As shown in fig. 4, the spindle mechanism includes a base 10 and two support members 20, and the two support members 20 are respectively connected to both sides of the base 10. The two support members 20 can be rotated with respect to the base 10, thereby achieving the relative opening and closing of the two support members 20.

An electronic device may include one spindle mechanism, or may include two or more spindle mechanisms. When the electronic device includes two spindle mechanisms, such as shown in fig. 4, the bases 10 of the two spindle mechanisms are connected.

The support assembly 20 includes a rotating plate 21, a sliding plate 22, a linkage 23, and a housing drive plate 24. Where the electronic device includes two pivoting mechanisms, such as shown in fig. 4, two sliding plates 22 on the same side of the base 10 may be connected. To facilitate an understanding of the relationship between the various structures in the support assembly 20, the support assembly 20 on one side of the base 10 is exploded in FIG. 4.

As shown in fig. 4, the swivel plate 21 is pivotally connected to the base 10. The slide plate 22 and the housing drive plate 24 are located on opposite sides of the rotating plate 21.

The slide plate 22 is connected to the rotating plate 21 and is capable of sliding in a direction approaching or separating from the base 10 with respect to the rotating plate 21. The housing driving plate 24 is also connected to the rotating plate 21, and is also capable of sliding in a direction approaching or separating from the base 10 with respect to the rotating plate 21. The slip plate 22 has a first driving groove 22a, the housing driving plate 24 has a second driving groove 24a, and at least one of the first driving groove 22a and the second driving groove 24a is an arc-shaped groove.

The linkage 23 includes a body 230, a first pin 231, and a second pin 232. The main body 230 is located between the slide plate 22 and the housing driving plate 24, and is rotatably connected with the rotating plate 21. The first pin 231 and the second pin 232 are located at both sides of the main body 230.

Fig. 5 is a schematic structural diagram of a spindle mechanism according to an embodiment of the present disclosure. In fig. 5, the pivot mechanism is shown on one side for carrying the flexible display panel, and as shown in fig. 5, the first pin 231 is located in the first driving slot 22a. Fig. 6 is a schematic structural diagram of a spindle mechanism according to an embodiment of the present disclosure. The other side of the spindle mechanism is shown in fig. 6, with the second pin 232 positioned in the second drive slot 24a as shown in fig. 6. The linkage 23 is used to link the slide plate 22 and the housing drive plate 24.

The sliding plate 22 and the shell driving plate 24 are linked through the linkage piece 23, when the sliding plate 22 slides relative to the rotating plate 21, the first driving groove 22a is matched with the first pin shaft 231 to drive the linkage piece 23 to rotate, and then the second pin shaft 232 is matched with the second driving groove 24a to drive the shell driving plate 24 to slide relative to the rotating plate 21. By arranging at least one of the two driving grooves as an arc groove, for example, arranging the second driving groove 24a as an arc groove, the second pin shaft 232 acts with the arc groove, when the shell driving plate 24 is driven, the movement of the second pin shaft 232 relative to the shell driving plate 24 has a component in the moving direction of the shell driving plate 24, and the second pin shaft 232 moves to different positions of the arc groove, and the magnitude of the component is different, so that the movement of the shell driving plate 24 is variable, the stress suffered by the flexible display panel in the folding process can be matched better, and the flexible display panel is prevented from being raised or pulled. Similarly, the case driving plate 24 can be shifted in speed by providing the first driving groove 22a as an arc-shaped groove.

As shown in fig. 5, the two support assemblies 20 are symmetrically distributed about the base 10. Fig. 7 is a schematic structural view of a base provided in an embodiment of the present disclosure. For ease of illustration of the cooperation between the base 10 and the swivel plate 21, one swivel plate 21 is also shown in fig. 7. As shown in fig. 7, the base 10 includes a mount 11 and two shafts 12. Two rotary shafts 12 are arranged on the mounting seat 11 in parallel at intervals. The rotating plates 21 of the two support assemblies 20 are respectively connected to the two rotating shafts 12 such that the rotating plates 21 can rotate about the axes of the rotating shafts 12.

The end of the rotation shaft 12 may be coaxially connected with a first synchronizing gear 121. Referring to fig. 4, the first synchronizing gears 121 on the two rotating shafts 12 are in driving connection through the two second synchronizing gears 122, so that the two rotating shafts 12 can rotate synchronously.

As shown in fig. 7, the swivel plate 21 includes a first plate body 211 and a plurality of connection arms 212. Illustratively, in the disclosed embodiment, the swivel plate 21 includes 3 connecting arms 212. The plurality of connecting arms 212 extend out with respect to the same side of the first plate 211 and are connected to the first plate 211. The connecting arm 212 is sleeved on the rotating shaft 12 at one end far away from the first plate 211 and is fixed with the rotating shaft 12 in the circumferential direction, so that the rotating plate 21 and the rotating shaft 12 can rotate around the axis of the rotating shaft 12 together when folding, namely, the rotating axis of the rotating plate 21 is the axis of the rotating shaft 12. In achieving circumferential fixation, the cross-section of the shaft 12 is shaped like the cross-section of a corresponding hole in the connecting arm 212, e.g. is arcuate. Of the 3 connecting arms 212, the connecting arm 212 located in the middle has a plurality of protrusions 2121 on both sides, and the other two connecting arms 212 have a plurality of protrusions 2121 on the side near the connecting arm 212 located in the middle.

The base 10 further includes a plurality of damping assemblies 13, each damping assembly 13 includes an elastic member 131 and two end cams 132, the end cams 132 are sleeved on the rotating shaft 12, the end cams 132 and the rotating shaft 12 can rotate relatively, and the end cams 132 can move axially relative to the rotating shaft 12. The elastic member 131, which may be a spring, is sleeved on the rotating shaft 12 and is located between the two end cams 132. The face cam 132 is configured to mate with a plurality of protrusions 2121 on the connecting arm 212.

As shown in fig. 7, the damper assembly 13 is located between two adjacent connecting arms 212. The two end cams 132 are matched with the plurality of protrusions 2121 on the two adjacent connecting arms 212, and when the rotating plate 21 drives the rotating shaft 12 to rotate, the protrusions 2121 push the end cams 132 to enable the elastic piece 131 to be extruded and deformed, so that damping is formed. When the protrusion 2121 is located at the concave position on the end cam 132, after the external force for bending the electronic device is removed, the rotating plate 21 is kept in the current state under the elastic force of the elastic member 131, so as to avoid spontaneous flattening or folding of the electronic device.

Fig. 8 is an assembly schematic diagram of a rotating plate and a linkage according to an embodiment of the present disclosure. As shown in fig. 8, the first plate body 211 of the rotating plate 21 has a receiving groove 211a, and the receiving groove 211a is used for receiving the main body 230 of the link 23. A pin hole 211b is further provided at the bottom of the accommodation groove 211a, and the pin hole 211b is connected to the link 23 so that the link 23 can rotate around the axis of the pin hole 211b with respect to the rotating plate 21. The axis of the pin hole 211b is the rotation axis O of the main body 230 of the linkage 23. Two arc-shaped avoiding grooves 211c centered on the pin holes 211b are also provided at the bottom of the accommodating groove 211a on both sides of the pin holes 211 b.

In addition to the receiving groove 211a, the first plate body 211 further has two bar-shaped sliding grooves 211d, and the two bar-shaped sliding grooves 211d are located at both sides of the receiving groove 211 a. The extending direction of the bar-shaped sliding groove 211d is perpendicular to the rotating shaft 12, that is, perpendicular to the rotation axis of the rotating plate 21.

As shown in fig. 8, the linkage 23 includes a body 230, a first pin 231, a second pin 232, a third pin 233, and a fourth pin 234. The main body 230 has a plate shape, the first pin 231 is located on one surface of the main body 230, and the second pin 232, the third pin 233 and the fourth pin 234 are located on the other surface of the main body 230. The third pin 233 is located at the middle of the body 230, and the second pin 232 and the fourth pin 234 are located at both sides of the third pin 233.

The linkage 23 is engaged with the rotating plate 21 when assembled. Specifically, the main body 230 of the linkage 23 is located in the receiving groove 211a on the first plate 211, and the third pin shaft 233 is inserted in the pin hole 211 b. The second pin 232 and the fourth pin 234 are respectively located in two avoidance grooves 211c at the bottom of the accommodating groove 211a, and the link 23 takes the third pin 233 as an axis, and when rotating in the accommodating groove 211a, the second pin 232 and the fourth pin 234 respectively move in the two avoidance grooves 211c.

The thickness of the body 230 of the link 23 in the depth direction of the receiving groove 211a may be not greater than the depth of the receiving groove 211a so that the body 230 can be completely received in the receiving groove 211a to make the support assembly 20 more compact. The second pin shaft 232 extends to the other side of the first plate body 211 through the escape groove 211c to form a fit with the second driving groove 24a of the housing driving plate 24.

As shown in fig. 8, the distance from the first pin 231 to the rotation axis O of the main body 230 is smaller than the distance from the second pin 232 to the rotation axis O of the main body 230.

The first pin shaft 231 is used for being matched with the first driving groove 22a on the sliding plate 22. When the sliding plate 22 moves relative to the rotating plate 21, the linkage piece 23 is driven to rotate by the cooperation of the first driving groove 22a and the first pin shaft 231, and then the second pin shaft 232 drives the shell driving plate 24 to move. The distance from the first pin 231 to the rotation axis O of the main body 230 is small so that the link 23 can play an enlarged role. The smaller the distance from the first pin 231 to the rotation axis O of the body 230, the greater the angle at which the link 23 rotates, and the greater the distance from the second pin 232, and thus the greater the distance from the housing driving plate 24, with the same distance from the sliding plate 22. By adjusting the ratio of the distance of the first pin 231 to the rotational axis O of the main body 230 and the distance of the second pin 232 to the rotational axis O of the main body 230, the case driving plate 24 can be moved a sufficient distance during folding to avoid the flexible display panel from being pulled.

In other possible examples, the distance from the first pin 231 to the rotational axis O of the main body 230 may also be equal to the distance from the second pin 232 to the rotational axis O of the main body 230.

Fig. 9 is a schematic structural view of a support assembly provided in an embodiment of the present disclosure. Shown in fig. 9 is the side of the support assembly remote from the flexible display panel. The body 230 of the linkage 23 is shown in phantom in fig. 9. As shown in fig. 9, the housing drive plate 24 is located on the side of the rotating plate 21 remote from the linkage 23. A plurality of connection holes 24b are distributed at the edge of the housing driving plate 24, and the connection holes 24b are used for connection with the housing 3000. For example, a screw is provided in the connection hole 24b, and the case driving plate 24 is connected to the middle frame portion of the case 3000 by the screw.

As shown in fig. 9, a first guide groove 24c is further provided in the middle of the case driving plate 24, and the extending direction of the first guide groove 24c is perpendicular to the rotation axis of the rotating plate 21. The third pin 233 of the link 23 extends into the first guide groove 24 c.

When the housing driving plate 24 moves relative to the rotating plate 21, the first guide groove 24c cooperates with the third pin 233 to limit the moving direction of the housing driving plate 24, so that the housing driving plate 24 can only move in a direction approaching or separating from the base 10.

As shown in fig. 9, the second driving groove 24a is located at a side of the first guide groove 24c, and the second pin shaft 232 extends into the second driving groove 24a. As an example, in the embodiment of the present disclosure, the second driving groove 24a is an arc-shaped groove. When the electronic device is folded, the linkage member 23 rotates in the direction indicated by the arrow n, the second pin 232 drives the housing driving plate 24 to move through the side wall of the second driving slot 24a, during the moving process, the second pin 232 also moves relative to the second driving slot 24a, and the second pin 232 has a motion component parallel to the rotating shaft 12 and a motion component perpendicular to the rotating shaft 12 relative to the second driving slot 24a. Since the second driving groove 24a is an arc-shaped groove, the motion components in two directions are changed, and the motion component perpendicular to the rotation shaft 12 affects the motion of the housing driving plate 24 toward or away from the base 10, so that the motion of the housing driving plate 24 toward or away from the base 10 is also changed. For example, the linkage 23 starts from different positions and rotates in the same direction by the same angle, and the distance that the housing driving plate 24 moves with respect to the rotating plate 21 varies. If the rotation of the linkage 23 is assumed to be uniform, the movement of the housing drive plate 24 relative to the rotating plate 21 is non-uniform. By adjusting the arcuate slot, for example, adjusting the curvature of the arcuate slot at different locations, the trajectory of the arcuate slot is adjusted so that in the process of folding the electronic device, the movement of the housing drive plate 24 relative to the base 10 more matches the stress experienced by the flexible display panel, so that the flexible display panel is pulled as little as possible during the entire folding process, and the flexible display panel is prevented from bulging.

The extending direction of the second driving groove 24a is indicated by a broken line m in fig. 9, and the middle portion of the second driving groove 24a is curved to a side away from the rotation axis of the main body 230 of the link 23. The rotational axis of the body 230 of the linkage 23, i.e., the axis of the third pin 233, or the axis of the pin hole 211 b.

The different bending directions of the arc grooves affect the movement process of the housing driving plate 24, and the middle part of the arc grooves is bent to a side far away from the rotation axis of the main body 230, that is, the arc grooves protrude to a side far away from the rotation axis of the main body 230, so that the movement speed of the housing driving plate 24 relative to the rotating plate 21 is gradually increased during the folding process of the two support assemblies 20. Here, the speed means a unit angle of rotation of the rotary plate 21, and the distance the housing driving plate 24 moves relative to the rotary plate 21. The speed is gradually increased, that is, the ratio of the distance the housing driving plate 24 moves relative to the rotating plate 21 to the angle at which the rotating plate 21 rotates is gradually increased. Thus, when the folding is performed from the flattened state, the speed of the shell driving plate 24 is slower when the folding is just started, the bulge of the flexible display panel can be avoided, and then the speed of the shell driving plate 24 is gradually increased, so that the flexible display panel can be prevented from being pulled, and the flexible display panel can be better matched.

As shown in fig. 9, the angle α between the line connecting the two ends of the arc-shaped groove and the rotation axis of the rotating plate 21 is 50 ° to 80 °.

The angle between the direction of extension of the drive slot and the axis of rotation of the rotor plate 21 will influence the speed of the housing drive plate 24 during folding. The included angle α is set at 50 ° to 80 °, so as to avoid that the housing driving plate 24 is too fast or too slow to be well matched with the flexible display panel during the movement process.

Alternatively, one of the first driving groove 22a and the second driving groove 24a is a bar-shaped groove. The first driving groove 22a is exemplified as a bar-shaped groove in the embodiment of the present disclosure.

Fig. 10 is a schematic structural view of a support assembly provided in an embodiment of the present disclosure. The support assembly is shown in fig. 10 for supporting one side of a flexible display panel. As shown in fig. 10, the first driving groove 22a on the slip plate 22 is a bar-shaped groove. The direction of extension of the strip-shaped groove is parallel to the axis of rotation of the swivel plate 21.

When the sliding plate 22 moves relative to the rotating plate 21, the first driving groove 22a drives the first pin shaft 231, so that the linkage 23 rotates. During the movement of the slide plate 22 relative to the rotating plate 21, the first pin 231 moves in the first driving groove 22a relative to the slide plate 22. Since the extending direction of the bar-shaped groove is parallel to the rotation axis of the rotating plate 21, the moving speeds of the first pin shaft 231 and the slide plate 22 in the direction perpendicular to the rotation axis of the rotating plate 21 are the same. The bar-shaped groove has a simple structure and simplifies the design, and when the structure of the linkage 23 is determined, that is, when the distance from the first pin shaft 231 to the rotation axis of the main body 230 and the distance from the second pin shaft 232 to the rotation axis of the main body 230 are determined, the movement process of the housing driving plate 24 can be accurately adjusted only by adjusting the shape of the second driving groove 24a of the housing driving plate 24. So that the movement of the housing drive plate 24 is more closely matched to the flexible display panel and the flexible display panel is prevented from bulging or being pulled.

In other examples, the extending direction of the strip-shaped groove may also form an acute angle with the rotation axis of the swivel plate 21. Such as the bar-shaped groove 22a' and the bar-shaped groove 22a″ shown in fig. 10, which may make the moving speeds of the first pin shaft 231 and the slip plate 22 in the direction perpendicular to the rotation axis of the rotating plate 21 unequal.

For example, as shown in fig. 10, in the process of approaching the slide plate 22 to the base 10 with respect to the rotating plate 21, the first pin shaft 231 moves along the bar-shaped groove 22a' with respect to the slide plate 22, the movement of the first pin shaft 231 with respect to the slide plate 22 has components in the direction perpendicular to the rotation axis of the rotating plate 21 and in the direction parallel to the rotation axis of the rotating plate 21, and the magnitudes of the two components are constant. Wherein the velocity component of the first pin 231 in the direction perpendicular to the rotation axis of the rotating plate 21 is the velocity difference between the first pin 231 and the sliding plate 22 in the direction perpendicular to the rotation axis of the rotating plate 21. If the velocity component of the first pin 231 in the direction perpendicular to the rotation axis of the rotating plate 21 is directed to the base 10, the moving velocity of the first pin 231 in the direction perpendicular to the rotation axis of the rotating plate 21 is greater than the moving velocity of the sliding plate 22, so that the case driving plate 24 can move at a faster velocity; if the velocity component of the first pin 231 in the direction perpendicular to the rotation axis of the rotating plate 21 faces away from the base 10, the moving speed of the first pin 231 in the direction perpendicular to the rotation axis of the rotating plate 21 is smaller than that of the sliding plate 22, which enables the case driving plate 24 to move at a slower speed.

Fig. 11 is a schematic structural view of a support assembly according to an embodiment of the present disclosure. In other possible implementations, as shown in fig. 11, the first drive slot 22a may be provided as an arcuate slot and the second drive slot 24a as a bar slot. At this time, the aforementioned design in which the second driving groove 24a is provided as an arc-shaped groove is also applicable to the first driving groove 22a. The aforementioned design for the first drive slot 22a as a bar slot also applies to the second drive slot 24a.

Alternatively, the first driving groove 22a and the second driving groove 24a may each be an arc-shaped groove. By providing both the first drive slot 22a and the second drive slot 24a as arcuate slots, the shape of both drive slots is adjusted to more closely match the movement of the housing drive plate 24 to the flexible display panel to avoid bulging or pulling of the flexible display panel.

The shape of the first and second drive slots 22a, 24a may be designed, for example, in a simulated manner.

Firstly, the motion trail of the two shells is determined in the process of folding the electronic equipment, and in ideal conditions, the ideal conditions are that the flexible display panel cannot bulge or be pulled completely in the folding process, namely the acting force of the shells to the flexible display panel is 0. Since the movements of the two housings are symmetrical, only one of the housings can be the subject of investigation. For example, fig. 12 is a schematic diagram of a movement trace of a housing provided in an embodiment of the present disclosure. In fig. 12, the ideal motion profile, i.e. in the ideal case, of one of the housings is determined. Specifically, the functional relationship between the bending angle and the displacement can be determined by using the bending angle as an independent variable and using the displacement of the housing, that is, the housing driving plate 24, relative to the rotating plate 21 in the direction approaching or separating from the base 10 as an independent variable, and the functional curve corresponding to the functional relationship is the ideal motion track S1.

Then, one of the first driving groove 22a or the second driving groove 24a is provided as a bar-shaped groove, and the other is provided as an arc-shaped groove. For example, the first driving groove 22a is provided as a bar-shaped groove, and the second driving groove 24a is provided as an arc-shaped groove. An actual movement locus S2 of the housing during folding of the electronic device is determined. The corresponding functional relationship can be determined by taking the bending angle as an independent variable and the displacement of the housing driving plate 24 relative to the rotating plate 21 in the direction approaching or separating from the base 10 as a dependent variable, so as to obtain the actual motion trail S2.

The first driving groove 22a is set as an arc groove based on the deviation of the actual movement track S2 and the ideal movement track S1, and the deviation of the actual movement track S2 and the ideal movement track S1 is controlled within the required range by adjusting the curvature of each position of the first driving groove 22a.

In addition, in determining the ideal motion trajectory S1 and the actual motion trajectory S2, the processing may be simplified, and only a plurality of discrete points may be determined. For example, determines the displacement of the housing drive plate 24 relative to the rotation plate 21 in a direction approaching or moving away from the base 10 for each rotation of the housing through a fixed angle, for example 5 deg., from the flattened state to the folded state. By adjusting the curvature of each position of the first driving groove 22a so that the difference between the displacement of the housing driving plate 24 relative to the rotating plate 21 in the direction approaching or separating from the base 10 and the ideal case is within the required range every 5 ° of rotation of the housing from the flattened state to the folded state.

Fig. 13 is an assembly schematic diagram of a sliding plate and a rotating plate according to an embodiment of the disclosure. As shown in fig. 13, the sliding plate 22 includes a second plate 221 and two sliding blocks 222, and the two sliding blocks 222 are located on one side of the second plate 221 near the rotating plate 21. The first driving groove 22a is located between the two sliders 222. The two sliding blocks 222 are respectively located in two bar-shaped sliding grooves 211d on the first plate body 211 of the rotating plate 21.

Since the extending direction of the bar-shaped slide groove 211d is perpendicular to the rotation shaft 12, that is, perpendicular to the rotation axis of the rotation plate 21, the slider 222 can move only in the direction perpendicular to the rotation axis of the rotation plate 21 in the bar-shaped slide groove 211d, thereby restricting the movement direction of the slide plate 22 with respect to the rotation plate 21.

Optionally, the sliding plate 22 further has a second guide groove 22b, and the second guide groove 22b extends from one side of the sliding plate 22 near the base 10 to the other side. The rotating plate 21 has a projection 213 on a side thereof adjacent to the sliding plate 22, and the projection 213 is located in the second guide groove 22 b.

The projection 213 is engaged with the second guide groove 22b, and can restrict the movement direction of the slide plate 22 relative to the rotary plate 21.

As shown in fig. 13, the base 10 further includes a connecting member 14, wherein a middle portion of the connecting member 14 is connected to the mounting base 11, and two ends of the connecting member 14 extend to two sides of the mounting base 11, respectively. Both ends of the connecting piece 14 can be bent relative to the mounting seat 11. The sliding plates 22 of the two support assemblies 20 are respectively rotatably connected with the two ends of the connecting piece 14. For example, the side edge of the skid 22 adjacent the base 10 is hinged to the end of the connector 14.

In the process of folding the two support assemblies 20 relatively, the rotating plate 21 rotates around the axis of the rotating shaft 12, the sliding plate 22 rotates along with the rotating plate 21, the sliding plate 22 is pulled by the connecting piece 14, so that the sliding plate 22 moves towards the direction approaching the base 10 relative to the rotating plate 21, the linkage piece 23 is driven to rotate, and the shell driving plate 24 is driven by the linkage piece 23 to move towards the direction approaching the base 10.

Illustratively, the connecting member 14 is a chain.

The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and principles of the disclosure.

Claims

1. The rotating shaft mechanism is characterized by comprising a base (10) and two support assemblies (20), wherein the two support assemblies (20) are respectively connected with two sides of the base (10);

the support assembly (20) comprises a rotating plate (21), a sliding plate (22), a linkage piece (23) and a shell driving plate (24);

the rotating plate (21) is pivoted with the base (10);

the sliding plate (22) and the shell driving plate (24) are positioned on two opposite sides of the rotating plate (21), are respectively connected with the rotating plate (21) and can slide relative to the rotating plate (21) along the direction approaching or separating from the base (10), the sliding plate (22) is provided with a first driving groove (22 a), the shell driving plate (24) is provided with a second driving groove (24 a), and at least one of the first driving groove (22 a) and the second driving groove (24 a) is an arc-shaped groove;

the linkage piece (23) comprises a main body (230), a first pin shaft (231) and a second pin shaft (232), wherein the main body (230) is positioned between the sliding plate (22) and the shell driving plate (24) and is rotationally connected with the rotating plate (21), the first pin shaft (231) and the second pin shaft (232) are positioned on two sides of the main body (230) and are respectively positioned in the first driving groove (22 a) and the second driving groove (24 a), and the linkage piece (23) is used for enabling the sliding plate (22) and the shell driving plate (24) to be linked.

2. A spindle mechanism according to claim 1, characterized in that the middle part of the arc-shaped groove is curved to a side remote from the axis of rotation of the main body (230).

3. A spindle mechanism according to claim 1, characterized in that the angle between the connection line of the two ends of the arc-shaped slot and the rotation axis of the rotating plate (21) is 50-80 °.

4. A spindle mechanism according to any one of claims 1 to 3, wherein one of the first drive slot (22 a) and the second drive slot (24 a) is a bar slot.

5. Spindle mechanism according to claim 4, characterized in that the direction of extension of the bar-shaped groove is parallel to the rotation axis of the swivel plate (21); or,

the included angle between the extending direction of the strip-shaped groove and the rotation axis of the rotating plate (21) is an acute angle.

6. A spindle mechanism according to any one of claims 1 to 3, wherein the first drive slot (22 a) and the second drive slot (24 a) are both arcuate slots.

7. A spindle mechanism according to any one of claims 1-3, characterized in that the distance from the first pin (231) to the axis of rotation (O) of the main body (230) is smaller than or equal to the distance from the second pin (232) to the axis of rotation (O) of the main body (230).

8. A spindle mechanism according to any one of claims 1 to 3, characterized in that the swivel plate (21) has a pin hole (211 b), the housing drive plate (24) further has a first guide groove (24 c), and the first guide groove (24 c) extends in a direction perpendicular to the swivel axis of the swivel plate (21);

the linkage (23) further comprises a third pin (233), the third pin (233) and the second pin (232) are located on the same side of the main body (230), and the third pin (233) is located in the pin hole (211 b) and extends into the first guide groove (24 c).

9. A spindle mechanism according to any one of claims 1-3, characterized in that the side of the swivel plate (21) adjacent to the slip plate (22) is provided with a projection (213);

the sliding plate (22) is provided with a second guide groove (22 b), the second guide groove (22 b) extends from one side of the sliding plate (22) close to the base (10) to the other side, and the lug (213) is positioned in the second guide groove (22 b).

10. An electronic device comprising two housings (3000) and a spindle mechanism (40) according to any one of claims 1 to 9, the two housings (3000) being connected to housing drive plates (24) of two support assemblies (20) of the spindle mechanism (40), respectively.