CN210867803U

CN210867803U - Rotating shaft assembly, foldable shell assembly and foldable electronic equipment

Info

Publication number: CN210867803U
Application number: CN202020163539.XU
Authority: CN
Inventors: 贾玉虎
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-02-11
Filing date: 2020-02-11
Publication date: 2020-06-26
Anticipated expiration: 2030-02-11

Abstract

The application provides a pair of pivot subassembly, collapsible casing subassembly and collapsible electronic equipment, the pivot subassembly includes: a base; at least one set of rotating arm assemblies rotatably connected with the base; the limiting assembly comprises at least one elastic bulge, at least one clearance part and at least one limiting part, the elastic bulge is arranged on one of the base and the rotating arm assembly, the clearance part and the limiting part are arranged on the other of the base and the rotating arm assembly, and the elastic bulge moves in the clearance part in the process that the rotating arm assembly rotates relative to the base; when the rotating arm component is in a flattening state relative to the base, the elastic bulge is clamped on the limiting part. The application provides a rotating shaft assembly, a foldable shell assembly and a foldable electronic device, wherein the rotating shaft assembly can ensure that shells on two sides of the electronic device can keep a flat state when the shells are completely unfolded.

Description

Rotating shaft assembly, foldable shell assembly and foldable electronic equipment

Technical Field

The application relates to the technical field of electronics, concretely relates to pivot subassembly, collapsible casing subassembly and collapsible electronic equipment.

Background

In foldable electronic equipment such as folding screen cell-phone, the casing of pivot subassembly both sides is connected, and the exhibition flat state of folding screen cell-phone is the normal use state. How to ensure that the two side shells of the foldable electronic device can keep a flat state when being completely unfolded becomes a technical problem to be solved.

SUMMERY OF THE UTILITY MODEL

The application provides a rotating shaft assembly, a foldable shell assembly and a foldable electronic device, wherein the rotating shaft assembly can ensure that shells on two sides of the electronic device can keep a flat state when the shells are completely unfolded.

In a first aspect, the present application provides a spindle assembly comprising:

a base;

at least one set of rotating arm assemblies rotatably connected with the base; and

the limiting assembly comprises at least one elastic bulge, at least one clearance part and at least one limiting part, the elastic bulge is arranged on one of the base and the rotating arm assembly, the clearance part and the limiting part are arranged on the other of the base and the rotating arm assembly, and the elastic bulge moves in the clearance part in the process that the rotating arm assembly rotates relative to the base; when the rotating arm component is in a flattening state relative to the base, the elastic bulge is clamped on the limiting part.

In a second aspect, the present application provides a foldable housing assembly, which includes a first housing, a second housing and a rotating shaft assembly, wherein the first housing and the second housing are respectively rotatably connected to two opposite sides of the rotating shaft assembly.

In a third aspect, the present application provides a foldable electronic device, comprising a display screen and the foldable housing assembly, wherein the display screen is disposed on the foldable housing assembly and can be folded along with the folding of the foldable housing assembly and unfolded along with the unfolding of the foldable housing assembly.

One part of the limiting assembly is arranged on the rotating arm assembly, the other part of the limiting assembly is arranged on the base, and the rotating arm assembly and the base have the fixed-point clamping function in the relative rotating process on the basis of not additionally increasing the structure; the pivot subassembly that this application embodiment provided is through the structure and the position of the spacing subassembly of rational design for the pivot subassembly that has the function of stopping has small, and the space that occupies is little, and the part is simple, characteristics such as easy preparation equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application;

FIG. 2 is a top view of the foldable electronic device of FIG. 1;

FIG. 3 is a schematic structural view of the foldable housing assembly of FIG. 2;

FIG. 4 is a schematic structural view of the spindle assembly of FIG. 3;

FIG. 5 is a partial schematic structural view of the spindle assembly of FIG. 4;

FIG. 6 is a schematic diagram of the structure of FIG. 5, shown disassembled;

FIG. 7 is a schematic structural view of the second rotating block of FIG. 6;

FIG. 8 is a cross-sectional view of the foldable housing assembly of FIG. 3 in a semi-flexed state;

FIG. 9 is a cross-sectional view of the foldable housing assembly of FIG. 3 in a flattened state;

FIG. 10 is a schematic structural view of the stent of FIG. 6;

FIG. 11a is a schematic diagram of the first partial structure of FIG. 5;

FIG. 11b is a cross-sectional view taken along line A-A of FIG. 11 a;

FIG. 12a is a schematic view of the first partial structure of FIG. 5;

FIG. 12B is a cross-sectional view taken along line B-B of FIG. 12 a;

FIG. 13a is a schematic diagram of the first partial structure of FIG. 5;

FIG. 13b is a cross-sectional view taken along line C-C of FIG. 13 a;

FIG. 14a is a schematic view of the first partial structure of FIG. 5;

FIG. 14b is a cross-sectional view taken along line D-D of FIG. 14 a;

FIG. 15 is a side view of the alternative first rotation block of FIG. 6;

fig. 16 is a side view of another second rotation block of fig. 6.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure. In addition, all the embodiments or implementations of the present application can be arbitrarily combined in an adaptation to form a new embodiment.

The foldable electronic equipment provided by the embodiment of the application can be electronic equipment with a foldable screen. The folding screen is a display screen and has the characteristic of being foldable. The user can trigger the foldable electronic equipment to execute corresponding events by executing folding operation on the folding screen, so that the man-machine interaction efficiency is improved.

Illustratively, the folded screen may be a flexible folded screen. The flexible folded screen may be folded along the folded edge to form a plurality (two or more) of screens. Illustratively, the folding screen may also be a multi-screen (rigid screen) folding screen. The multi-screen foldable screen may include a plurality (two or more) screens (rigid screens). The plurality of screens may be connected in turn by a folding shaft. Each screen can rotate around a folding shaft connected with the screen, and folding of the multi-screen folding screen is achieved. In this application, the folding screen folded along a folding edge is taken as an example, and the folding screen is a flexible folding screen, and is not repeated in the following. In this application, the flexible display screen can be folded in a form of bending outward or bending inward, and this embodiment uses the flexible display screen to fold for the form of bending inward for the illustration, and the follow-up is no longer repeated.

The foldable electronic device in the embodiment of the present application may be a mobile phone, a tablet computer, a desktop computer, a laptop computer, an electronic reader, a handheld computer, an electronic display screen, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a cellular phone, a Personal Digital Assistant (PDA), an Augmented Reality (AR) \ Virtual Reality (VR) device, a media player, a watch, a necklace, glasses, a headset, or other devices with a foldable screen. It will be appreciated that the foldable electronic device may also be a foldable non-display device. The embodiment takes a folding screen mobile phone as an example for illustration.

The foldable electronic device according to the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a foldable electronic device according to an embodiment of the present disclosure. In this embodiment, the length direction of the foldable electronic device 100 is defined as the Y-axis direction. The width direction of the foldable electronic device 100 is defined as the X-axis direction. The thickness direction of the foldable electronic device 100 is defined as the Z-axis direction. The folding axis of the foldable electronic device 100 is along the Y-axis direction.

Referring to fig. 1 and fig. 2, the foldable electronic device 100 at least includes a foldable housing assembly 101 and a flexible display screen 102 disposed on the foldable housing assembly 101. The flexible display screen 102 is capable of folding with the foldable housing assembly 101 folded and flattening with the foldable housing assembly 101 unfolded.

Referring to fig. 3, the foldable housing assembly 101 includes a rotating shaft assembly 10, a first housing 20 and a second housing 30. The first housing 20 and the second housing 20 are rotatably connected to opposite sides of the rotary shaft assembly 10, respectively.

Referring to fig. 4, the rotating shaft assembly 10 includes a base 1 and at least one set of rotating arm assemblies 2 rotatably connected to the base 1. In this embodiment, at least one set of rotating arm assemblies 2 includes a first rotating arm assembly 21 and a second rotating arm assembly 22, which will not be described in detail later. Wherein the first and second

swing arm assemblies

21 and 22 are respectively rotatably connected to the base 1 from both sides of the base 1. Of course, in other embodiments, the at least one set of rotating arm assemblies 2 may comprise 1 first rotating arm assembly 21 and two second rotating arm assemblies 22; alternatively, the at least one set of swivel arm assemblies 2 may further comprise 2 first

swivel arm assemblies

21 and 2 second swivel arm assemblies 22, etc., which are not to be enumerated.

Referring to fig. 3 and 4, an end of the first rotating arm assembly 21 away from the base 1 is connected to the first housing 20. The end of second pivot arm assembly 22 remote from base 1 is connected to second housing 30. The base 1 extends in the Y-axis direction. The first housing 20, the first swing arm assembly 21, the base 1, the second swing arm assembly 22, and the second housing 30 are connected in this order in the X-axis direction. When the first housing 20 and the second housing 30 rotate in opposite directions, the first housing 20 drives the first rotating arm assembly 21 to rotate around the base 1, and the second housing 30 drives the second rotating arm assembly 22 to rotate around the base 1 in a direction opposite to the direction of the first rotating arm assembly 21, so that the first housing 20 and the second housing 30 are in a flattened state or a folded state. It will be appreciated that the first rotating arm assembly 21 is fixedly connected to the first housing 20 and the second rotating arm assembly 22 is fixedly connected to the second housing 30, and the fixed connection includes, but is not limited to, a screw connection, an adhesive connection, or a snap connection. When the first casing 20 and the second casing 30 are in the flat state, the first rotating arm assembly 21 and the second rotating arm assembly 22 are also in the flat state, and at this time, the foldable electronic device 100 is also in the flat state; when the first and

second housings

20 and 30 are in the folded state, the first and second

swing arm assemblies

21 and 22 are also in the folded state, and at this time, the foldable electronic device 100 is in the closed state.

It should be noted that, the first rotating arm assembly 21 and the second rotating arm assembly 22 are in the flattened state, which means that the first rotating arm assembly 21 and the second rotating arm assembly 22 are mutually unfolded to 180 °, and at this time, the unfolding angle between the first housing 20 and the second housing 30 is also 180 °. The first and second

swing arm assemblies

21 and 22 being in the folded state means that the first and second

swing arm assemblies

21 and 22 are brought close to each other to abut against each other.

The structure of the rotary shaft assembly 10 of the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 5 and 6, the rotating shaft assembly 10 further includes at least one set of limiting assemblies 3. The spacing assembly 3 comprises at least one elastic protrusion (see 31 in fig. 6), at least one space-avoiding portion (see 33 in fig. 6) and at least one spacing portion (see 32 in fig. 6). The present embodiment takes an elastic protrusion (see 31 in fig. 6), an escape portion (see 33 in fig. 6), and a position-limiting portion (see 32 in fig. 6) as an example of a set of position-limiting components 3.

The limiting assembly 3 is arranged between the first rotating arm assembly 21 and the base 1; and/or the limiting assembly 3 is arranged between the second rotating arm assembly 22 and the base 1.

Illustratively, the elastic protrusion (see 31 in fig. 6), the clearance portion (see 33 in fig. 6) and the limiting portion (see 32 in fig. 6) are respectively mounted on the two first bodies and the second bodies which move relatively. The first and second bodies may be the first rotation arm-set 21 and the base 1; alternatively, the first and second bodies may be the second rotating arm assembly 22 and the base 1.

In the process of the relative movement of the first body and the second body, the elastic protrusion (see 31 in fig. 6) can move freely in the space avoiding portion (see 33 in fig. 6) under the driving of the first body, so that the limiting assembly 3 does not influence the relative movement of the first body and the second body. When the elastic protrusion (see 31 in fig. 6) moves into the limiting part along with the first body, the elastic protrusion (see 31 in fig. 6) is limited by the limiting part and locked, so that the first body and the second body are relatively clamped.

When the limiting component 3 is applied to the foldable housing component 101, the foldable housing component 101 can keep the shape when folded by setting the position and number of the limiting parts (see 32 in fig. 6); alternatively, foldable housing assembly 101 maintains its form when in the flattened state; alternatively, the foldable housing assembly 101 maintains its shape in an intermediate bent state, wherein the intermediate bent state may be an angle between 0 ° and 180 ° between the first housing 20 and the second housing 20, such as 90 °, 120 °, 150 °, and so on; alternatively, the foldable housing assembly 101 can be maintained in a folded state, a flattened state, and a plurality of intermediate folded states at different angles. The present embodiment will be described by taking an example in which the stopper member 3 is held in a state in which the foldable housing member 101 is laid out flat.

One part of the limiting assembly 3 is arranged on the rotating arm assembly 2, the other part of the limiting assembly 3 is arranged on the base 1, and the rotating arm assembly 2 and the base 1 have a fixed-point clamping function in the relative rotating process on the basis of not additionally increasing the structure, for example, when the rotating arm assembly 2 is flattened relative to the base 1, the rotating arm assembly 2 is clamped with the base 1 through the limiting assembly 3, and the flattening state of the rotating arm assembly 2 is further kept; the structure and the position of the limiting component 3 are reasonably designed, so that the rotating shaft component 10 with the clamping function has the characteristics of small volume, small occupied space, simple parts, easiness in manufacturing and assembling and the like.

The first body and the second body are not particularly limited in this application. Specifically, a set of stop assemblies 3 may be provided on the first swing arm assembly 21, the base 1, and the second swing arm assembly 22.

In a first possible embodiment, the first body is a first rotating arm-set 21 and the second body is a base 1; in a second possible embodiment, the first body is the base 1 and the second body is the first rotating arm-set 21; in a third possible embodiment, the first body is the second rotating arm assembly 22 and the second body is the base 1; in a fourth possible embodiment, the first body is base 1 and the second body is second swing arm assembly 22.

When the limiting assembly 3 is disposed between the first rotating arm assembly 21 and the base 1 or between the second rotating arm assembly 22 and the base 1, the rotating shaft assembly 10 further includes a synchronous rotating mechanism (not shown). The synchronous rotation mechanism is connected between the first rotating arm assembly 21 and the second rotating arm assembly 22, so that the first rotating arm assembly 21 and the second rotating arm assembly 22 rotate synchronously or are locked.

Optionally, the synchro-rotation mechanism comprises two meshed gear assemblies or four meshed gear assemblies. For example, when the synchronous rotation mechanism includes two gear assemblies engaged with each other, one gear assembly is connected to the first rotation arm assembly 21, and the other gear assembly is connected to the second rotation arm assembly 22, when the first rotation arm assembly 21 rotates, one gear assembly of the synchronous rotation mechanism is driven to rotate, and the other gear assembly is driven to synchronously rotate in the opposite direction, so as to drive the second rotation arm assembly 22 to synchronously rotate in the opposite direction with respect to the first rotation arm assembly 21.

In other words, when the first rotating arm assembly 21 rotates to be flat relative to the base 1, the second rotating arm assembly 22 is in a flat state with the first rotating arm assembly 21 under the action of the synchronous rotating mechanism, the first rotating arm assembly 21 is clamped with the base 1 through the elastic protrusion (see 31 in fig. 6) and the limiting part (see 32 in fig. 6), and the first rotating arm assembly 21 clamps the second rotating arm assembly 22 through the synchronous rotating mechanism, so that the first rotating arm assembly 21 is clamped with the second rotating arm assembly 22, and the first rotating arm assembly 21 and the second rotating arm assembly 22 are kept in the flat state.

It should be noted that in this embodiment, the stopping of the limiting assembly 3 when the first rotating arm assembly 21 and the second rotating arm assembly 22 are in the flat state is exemplified, and the description is not repeated.

Illustratively, two sets of stop assemblies (3, 5) may be provided on the first and second

pivot arm assemblies

21, 1 and 22. The two sets of limiting components (3, 5) comprise a first elastic bulge 31, a first limiting part 32, a first space avoiding part 33, a second elastic bulge 51, a second limiting part 52 and a second space avoiding part 53. The first rotating arm assembly 21 and the base 1 are clamped through one group of limiting assemblies 3, the second rotating arm assembly 22 and the base 1 are clamped through the other group of limiting assemblies 5, and the first rotating arm assembly 21 and the second rotating arm assembly 22 are clamped simultaneously in a flattening state through the positions of the two groups of limiting assemblies (3 and 5), so that the first rotating arm assembly 21 and the second rotating arm assembly 22 are kept in a flattening state.

For ease of description, it is defined that a first swivel arm assembly 21 is attached to the first end 11 of the base 1 and a second swivel arm assembly 22 is attached to the second end 12 of the base 1. The first end 11 and the second end 12 are arranged along the X-axis direction.

In a first possible embodiment, please refer to fig. 5 and 6, a first elastic protrusion 31 is disposed at the first end 11 of the base 1, a first limiting portion 32 and a first space-avoiding portion 33 are disposed at the first rotating arm assembly 21, a second elastic protrusion 51 is disposed at the second end 12 of the base 1, and a second limiting portion 52 and a second space-avoiding portion 53 are disposed at the second rotating arm assembly 22; in a second possible embodiment, the first limiting portion 32 and the first clearance portion 33 are provided at the first end 11 of the base 1, the first elastic projection 31 is provided at the first rotating arm assembly 21, the second elastic projection 51 is provided at the second end 12 of the base 1, and the second limiting portion 52 and the second clearance portion 53 are provided at the second rotating arm assembly 22; in the third possible embodiment, the first elastic projection 31 is provided at the first end 11 of the base 1, the first limiting portion 32 and the first clearance portion 33 are provided at the first rotating arm assembly 21, the second limiting portion 52 and the second clearance portion 53 are provided at the second end 12 of the base 1, and the second elastic projection 51 is provided at the second rotating arm assembly 22; in the fourth possible embodiment, the first limiting portion 32 and the first clearance portion 33 are disposed at the first end 11 of the base 1, the first elastic protrusion 31 is disposed at the first rotating arm assembly 21, the second limiting portion 52 and the second clearance portion 53 are disposed at the second end 12 of the base 1, and the second elastic protrusion 51 is disposed at the second rotating arm assembly 22.

A rotary shaft assembly 10 provided in an embodiment of the present application will be described as an example with reference to the accompanying drawings.

Referring to fig. 5 and 6, the first end 11 of the base 1 is provided with a first elastic protrusion 31, the second end 12 of the base 1 is provided with a second elastic protrusion 51, and the first rotating arm assembly 21 is provided with a first limiting portion 32 and a first avoiding portion 33. Referring to fig. 7, second pivot arm assembly 22 is provided with a second stopper portion 52 and a second clearance portion 53.

Referring to fig. 8, in the process of the rotation of the first and second

rotating arm assemblies

21 and 22 relative to the base 1, the first elastic protrusion 31 freely moves in the first space-avoiding portion 33, and the second elastic protrusion 51 freely moves in the second space-avoiding portion 53.

Referring to fig. 9, when the first and second

rotating arm assemblies

21 and 22 are in the flattened state relative to the base 1, the first elastic protrusion 31 is locked at the first limiting portion 32, and the second elastic protrusion 51 is locked at the second limiting portion 52, so that the first and second

rotating arm assemblies

21 and 22 are locked in the flattened state, and the flattened state is maintained.

When the first and second

swing arm assemblies

21 and 22 need to be released from the locked state, the first and second

swing arm assemblies

21 and 22 can be freely rotated by rotating the first elastic projection 31 into the first clearance portion 33 and the second elastic projection 51 into the second clearance portion 53.

The structure of the base 1 provided in the embodiment of the present application will be specifically described below with reference to the accompanying drawings.

Referring to fig. 3, the base 1 includes a base housing 13 and at least one support 14 disposed in the base housing 13. Wherein the base housing 13 is used to carry structures such as a rack 14. A bracket 14 pivotally connects one of the first and second

pivot arm assemblies

21 and 22.

Referring to fig. 6 and 10, the bracket 14 is provided with a first arc-shaped sliding slot 41 and a second arc-shaped sliding slot 42. Wherein the first arc chute 41 extends from the first end 11 of the base 1 towards the second end 12 of the base 1. The second arcuate chute 42 extends from the second end 12 of the base 1 toward the first end 11 of the base 1.

In this embodiment, the first arc chute 41 and the second arc chute 42 of the base 1 are arranged in parallel in the Y-axis direction. In other words, orthographic projections of the first arc-shaped sliding chute 41 and the second arc-shaped sliding chute 42 of the base 1 in the Y-axis direction are at least partially overlapped, and by designing in this way, the size of the base 1 in the X-axis direction can be reduced, so that the overall volume of the base 1 is reduced.

Referring to fig. 6, the first rotating arm assembly 21 includes a first rotating block 211. The first rotating block 211 is disposed in the first arc-shaped sliding groove 41 and slidably connected to the base 1.

Specifically, referring to fig. 6, the first rotating block 211 includes an arc-shaped bottom surface 212, a first side surface 213, a second side surface 214, and a top surface 215. The first side surface 213 and the second side surface 214 are connected to opposite sides of the arc-shaped bottom surface 212, and the top surface 215 is connected to the other two sides of the arc-shaped bottom surface 212. The first side surface 213 and the second side surface 214 are provided with arc-shaped guide grooves 216. The arc extending direction of the arc guide groove 216 is the same as the arc extending direction of the arc bottom surface 212.

Referring to fig. 6, the shape of the first arc-shaped sliding slot 41 is matched with the shape of the first rotating block 211. The two groove walls of the first arc chute 41 opposite to the first side surface 213 and the second side surface 214 are respectively provided with an arc guide block 411. The arc-shaped guide block 411 is disposed in the arc-shaped guide slot 216 and can move along the arc-shaped guide slot 216, so that the first rotating block 211 moves in the first arc-shaped sliding slot 41, and the first rotating arm assembly 21 rotates relative to the base 1.

Of course, in other embodiments, the positions of the arc guide slot 216 and the arc guide block 411 may be interchanged.

In this embodiment, referring to fig. 6, the second rotating arm assembly 22 includes a second rotating block 221. The second rotating block 221 is disposed in the second arc-shaped sliding groove 42 and slidably connected to the base 1. The structure of the second rotation block 221 is the same as that of the first rotation block 211, and is not described in detail herein. The structure of the second arc chute 42 is the same as that of the first arc chute 41, and is not described in detail herein.

Referring to fig. 6, the base 1 further includes a first mounting groove 15 and a first through hole 16 communicating the first mounting groove 15 with the first arc-shaped sliding groove 41. The first mounting groove 15 is disposed between the second arc-shaped sliding groove 42 and the first end 11 of the base 1. The first mounting groove 15 and the first arc-shaped sliding groove 41 are arranged along the Y-axis direction.

Referring to fig. 5 and 6, the first elastic protrusion 31 is disposed in the first mounting groove 15. The first elastic protrusion 31 includes a first elastic member 311 and a first protrusion 312. In this embodiment, the first mounting groove 15 is a long groove, and the first elastic member 311 is a spring.

Referring to fig. 11a and 11b, the first elastic member 311 is elastically abutted between a groove wall of the first mounting groove 15 and the first protruding member 312. One end of the first protrusion 312 is clamped with the first elastic member 311, so that the first elastic member 311 is in a compressed state.

Referring to fig. 11a and 11b, an end of the first protrusion 312 away from the first elastic element 311 extends into the first arc-shaped sliding slot 41 through the first through hole 16. Further, the first through hole 16 penetrates the arc guide block 411 of the first arc chute 41 (see fig. 10). In other words, an end of the first protrusion 312, which is away from the first elastic member 311, extends from the arc guide block 411 of the first arc chute 41 into the first arc chute 41. Correspondingly, referring to fig. 6, the first space-avoiding portion 33 and the first position-limiting portion 32 are disposed in the arc-shaped guide groove 216 corresponding to the arc-shaped guide block 411 having the first through hole 16. The first position-limiting portion 32 is close to the first end 11 of the base 1 relative to the first space-avoiding portion 33. The first position-limiting portion 32 and the first space-avoiding portion 33 are arranged along an arc-shaped trajectory along which the first rotating block 211 moves.

Through locating first bellying 312 on arc guide block 411, so that arc guide block 411 not only has the effect of providing the direction for first pivot arm-set 21 and pivot subassembly 10, can also make arc guide block 411 can also be the loading face of first bellying 312, correspondingly, arc guide way 216 not only can cooperate with arc guide block 411 in order to form the direction, still for first portion 33 of keeping away, first spacing portion 32 provides bearing space, realize that a thing is multi-purpose, improve space utilization and compact structure nature.

In this embodiment, please refer to fig. 6, the first recess 33 is an arc-shaped groove. The length of the first clearance portion 33 is capable of supporting the rotation block to rotate the arc-shaped extending direction of the first clearance portion 33 is the same as the rotating direction of the first rotation arm assembly 21 relative to the base 1. The end of the first protrusion 312 away from the first elastic member 311 is a hemispherical protrusion, also called a convex ball, the end of the first protrusion 312 connected to the first elastic member 311 is a connecting seat, and the convex ball is disposed on the connecting seat. The first position-limiting portion 32 is a circular groove. The end of the first protrusion 312 away from the first elastic member 311 is capable of compressing the first elastic member 311 under the action of an external force to retract into the first through hole 16 and to extend out of the first through hole 16 again when the external force is removed.

When the first housing 20 moves relative to the rotating shaft assembly 10, the first rotating arm assembly 21 drives the first rotating block 211 to move in the first arc-shaped sliding slot 41 under the action of the first housing 20, and the first rotating block 211 drives the first avoiding portion 33 and the first limiting portion 32 to move relative to the first elastic protrusion 31.

Referring to fig. 6, the base 1 further has a second mounting groove 17 and a second through hole 18 communicating the second mounting groove 17 with the second arc-shaped sliding groove 42. The second mounting groove 17 is disposed between the first arc-shaped sliding groove 41 and the second end 12 of the base 1. The second mounting groove 17 and the second arc-shaped sliding groove 42 are arranged along the Y-axis direction.

Referring to fig. 5 and 6, the second elastic protrusion 51 is disposed in the second mounting groove 17. The second elastic protrusion 51 includes a second elastic member 511 and a second protrusion member 512.

In the present embodiment, referring to fig. 5 and fig. 6, the second mounting groove 17 is a long groove, and the second elastic member 511 is a spring. The second elastic member 511 is elastically abutted between the groove wall of the second mounting groove 17 and the second protrusion member 512. One end of the second protrusion 512 is engaged with the second elastic member 511, so that the second elastic member 511 is in a compressed state.

Referring to fig. 5 and fig. 6, an end of the second protrusion 512 away from the second elastic element 511 extends into the second arc chute 42 through the second through hole 18. Further, the second through hole 18 penetrates the arc guide block 421 of the second arc chute 42. In other words, an end of the second protrusion 512 away from the second elastic member 511 extends from the arc guide block 421 of the second arc chute 42 into the second arc chute 42. Correspondingly, the second clearance portion 53 and the second limiting portion 52 are disposed in the corresponding arc-shaped guide groove 217 of the arc-shaped guide block 421 having the second through hole 18. The second position-limiting portion 52 is close to the second end 12 of the base 1 relative to the second space-avoiding portion 53. The second position-limiting portion 52 and the second space-avoiding portion 53 are arranged along an arc-shaped trajectory along which the second rotating block 221 moves.

When the second housing 20 moves relative to the rotating shaft assembly 10, the second rotating arm assembly 22 drives the second rotating block 221 to move in the second arc-shaped sliding groove 42 under the action of the second housing 20, and the second rotating block 221 drives the second clearance portion 53 and the second limiting portion 52 to move relative to the second elastic protrusion 51.

When the first housing 20 and the second housing 20 rotate from the folded state to the unfolded state, the first rotating block 211 gradually slides into the first arc-shaped sliding groove 41, the second rotating block 221 gradually slides into the second arc-shaped sliding groove 42, one end of the first protruding member 312, which is far away from the first elastic member 311, is disposed in the first clearance portion 33 and moves along the arc extending direction of the first clearance portion 33, and one end of the second protruding member 512, which is far away from the second elastic member 511, is disposed in the second clearance portion 53 and moves along the arc extending direction of the second clearance portion 53. When the first housing 20 and the second housing 20 rotate to the flat state, the first rotating block 211 completely slides into the first arc-shaped sliding groove 41, the second rotating block 221 completely slides into the second arc-shaped sliding groove 42, and the second protruding member 512 of the second elastic protrusion 51 is clamped into the second limiting portion 52, so that the first housing 20 and the second housing 20 are kept in the flat state.

In this embodiment, the radial dimension of the first clearance portion 33 is greater than or equal to the radial dimension of the first elastic protrusion 31. The radial dimension of the first clearance portion 33 is the width dimension of the arc-shaped clearance groove, that is, the dimension of the first clearance portion 33 in the direction perpendicular to the extending direction of the arc-shaped clearance groove. The radial dimension of the first elastic protrusion 31 is the outer diameter of the hemispherical protrusion. In other words, when the first elastic protrusion 31 is disposed on the first space portion 33, the first elastic protrusion 31 and a groove wall of the first space portion 33 are disposed at an interval, so as to reduce a rotation resistance of the first housing 20 in the flattening process and improve a rotation smoothness of the first housing 20.

When the second elastic protrusion 51 is disposed on the second space portion 53, the second elastic protrusion 51 and the groove wall of the second space portion 53 are disposed at intervals, so as to reduce the rotational resistance of the second housing 20 in the flattening process, and improve the rotational smoothness of the second housing 20.

Referring to fig. 6, a first transition surface 34 is formed between the first avoiding portion 33 and the first limiting portion 32. The groove wall of the first clearance portion 33 is in arc transition connection with the first transition surface 34. The groove wall of the first position-limiting portion 32 is in arc transition connection with the first transition surface 34, so as to improve the smoothness of the first housing 20 from the rotating state to the flattening state.

Referring to fig. 7, a second transition surface 54 is formed between the second clearance portion 53 and the second position-limiting portion 52. The groove wall of the second clearance portion 53 is in arc transition connection with the second transition surface 54. The groove wall of the second position-limiting portion 52 is in arc-shaped transition connection with the second transition surface 54, so as to improve the smoothness of the second housing 20 from the rotating state to the flattening state.

The state of the foldable electronic device 100 provided by the embodiment of the present application includes, but is not limited to, the following stages: in the process of converting the foldable electronic device 100 from the closed state to the flat state, the position limiting assembly 3 goes through 3 stages: a clearance stage, a convex ball retreating stage and a locking stage. As shown in fig. 12a and 12b, the clearance phase is that the convex ball at one end of the first elastic protrusion 31 is not in contact with the first clearance portion 33 of the first rotating block 211, and at this time, the first rotating block 211 can move freely; as shown in fig. 13a and 13b, the protruding ball retreats when the first rotating block 211 moves to the first transition surface 34, and the protruding ball at one end of the first elastic protrusion 31 retreats under the pressure of the first transition surface 34 and enters the first through hole 16; as shown in fig. 14a and 14b, when the first rotating block 211 continues to move, the convex ball at one end of the first elastic protrusion 31 moves forward again under the action of the first elastic member 311, and is clamped into the first position-limiting portion 32, and the locking stage is entered.

Referring to fig. 15 and 16, the position limiting assembly 3 further includes at least one first positioning portion 35 and at least one second positioning portion 55. The first clearance portion 33 is disposed between the first positioning portion 35 and the first limiting portion 32. The second clearance portion 53 is disposed between the second engaging portion 55 and the second stopper portion 52. When the first and second

swing arm assemblies

21 and 22 are folded, the first resilient protrusion 31 is locked to the first locking portion 35, and the second resilient protrusion 51 is locked to the second locking portion 55.

The embodiment of the application provides a rotating shaft assembly 10 with a locking function, wherein one part of a limiting assembly 3 is arranged on a rotating arm assembly 2, and the other part of the limiting assembly 3 is arranged on a base 1, so that a first rotating arm assembly 21, a second rotating arm assembly 22 and the base 1 have a fixed-point locking function in a relative rotating process on the basis of not additionally increasing the structure, for example, when the first rotating arm assembly 21 and the second rotating arm assembly 22 are flat relative to the base 1, the first rotating arm assembly 21 and the second rotating arm assembly 22 are locked with the base 1 through the limiting assembly 3, and then the flat states of the first rotating arm assembly 21 and the second rotating arm assembly 22 are kept; the structure and the position of the limiting component 3 are reasonably designed, so that the rotating shaft component 10 with the clamping function has the characteristics of small volume, small occupied space, simple parts, easiness in manufacturing and assembling and the like.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.

Claims

1. A spindle assembly, comprising:

a base;

2. The rotary shaft assembly as claimed in claim 1, wherein the base is provided with an arc-shaped sliding groove, the elastic projection is arranged on the base, and one end of the elastic projection is arranged in the arc-shaped sliding groove;

the rotating arm assembly comprises a rotating block, the rotating block is arranged in the arc-shaped sliding groove and is in sliding connection with the base, and the space avoiding portion and the limiting portion are arranged on the rotating block.

3. The rotary shaft assembly as claimed in claim 2, wherein the base further has a mounting groove and a through hole communicating the mounting groove with the arc-shaped sliding groove, the elastic protrusion is disposed in the mounting groove, the elastic protrusion includes an elastic member and a protrusion member, the elastic member elastically abuts between the wall of the mounting groove and the protrusion member, and an end of the protrusion member away from the elastic member extends into the arc-shaped sliding groove through the through hole.

4. The rotating shaft assembly according to claim 3, wherein the inner wall of the arc-shaped sliding groove is provided with an arc-shaped guide block, the through hole is formed in the arc-shaped guide block, the rotating block is provided with an arc-shaped guide groove, the arc-shaped guide block is arranged in the arc-shaped guide groove and can move along the arc-shaped guide groove, and the clearance portion and the limiting portion are arranged at the bottom of the arc-shaped guide groove.

5. The pivot assembly of claim 1 wherein the recess is an arcuate slot, the recess having an arcuate extension in the same direction as the pivot arm assembly is pivoted relative to the base; one end of the elastic bulge is a hemispherical bulge, and the limiting part is a circular groove.

6. The pivot assembly of claim 5 wherein the resilient projections are spaced apart from the walls of the recess when the resilient projections are disposed in the recess.

7. The rotating shaft assembly as claimed in claim 5, wherein a transition surface is formed between the recess portion and the position-limiting portion, a groove wall of the recess portion is in arc-shaped transition connection with the transition surface, and a groove wall of the position-limiting portion is in arc-shaped transition connection with the transition surface.

8. The pivot assembly of claim 1 further comprising at least one detent, the clearance portion being disposed between the detent and the stop, the resilient projection being captured by the detent when the pivot assembly is in the folded position relative to the base.

9. The rotating shaft assembly according to any one of claims 1 to 8, wherein the at least one group of rotating arm assemblies comprises a first rotating arm assembly and a second rotating arm assembly, the first rotating arm assembly and the second rotating arm assembly are respectively and rotatably connected with two opposite sides of the base, and the limiting assembly is arranged between the first rotating arm assembly and the base; and/or the limiting assembly is arranged between the second rotating arm assembly and the base.

10. The pivot assembly of claim 9 wherein the stop assembly is disposed between the first pivot arm assembly and the base or between the second pivot arm assembly and the base; the rotating shaft assembly further comprises a synchronous rotating mechanism, and the synchronous rotating mechanism is connected between the first rotating arm assembly and the second rotating arm assembly so that the first rotating arm assembly and the second rotating arm assembly can rotate synchronously or are blocked.

11. A foldable housing assembly, comprising a first housing, a second housing and a rotating shaft assembly as claimed in any one of claims 1 to 10, wherein the first housing and the second housing are rotatably connected to opposite sides of the rotating shaft assembly.

12. A foldable electronic device comprising a display and the foldable housing assembly of claim 11, wherein the display is disposed on the foldable housing assembly and can be folded with the foldable housing assembly folded and unfolded with the foldable housing assembly unfolded.