CN117128231A

CN117128231A - Swing arm, rotating mechanism and electronic equipment

Info

Publication number: CN117128231A
Application number: CN202310173440.6A
Authority: CN
Inventors: 杨德森; 臧永强; 吴崚; 霍国亮
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-02-20
Filing date: 2023-02-20
Publication date: 2023-11-28

Abstract

The application discloses a swing arm, a rotating mechanism and electronic equipment, and belongs to the technical field of folding electronic equipment. The swing arm includes: the first lap joint part is provided with a first lap joint end; the extension part is arranged on the first overlap joint part, the extension part is provided with an extension end, the extension end can extend out of the first overlap joint end of the first overlap joint part, and when the extension part moves relative to the first overlap joint part, the extension end can move towards the direction close to the first overlap joint end. The rotating mechanism comprises a middle beam, a supporting door plate and the swing arm; the middle beam and the supporting door plate are respectively overlapped with the swing arm, and the swing arm can rotate relative to the middle beam. The electronic equipment comprises a first frame body, a second frame body and the rotating mechanism, wherein the rotating mechanism is arranged between the first frame body and the second frame body. The application realizes that the door plate rotates smoothly relative to the center sill under the condition of enough overlap joint amount in the unfolding state.

Description

Swing arm, rotating mechanism and electronic equipment

Technical Field

The present application relates to the field of folding electronic devices, and in particular, to a swing arm, a rotating mechanism, and an electronic device.

Background

Along with the development of the technology for delivering the flexible screen, the screen size of electronic equipment, such as a mobile phone, a tablet personal computer, an electronic reader and the like, is larger and larger, but the electronic equipment is inconvenient to carry, so that the development of the foldable electronic equipment is promoted, and the characteristics of portability are also satisfied while the large-size screen is satisfied; in the foldable electronic equipment, the rotating mechanism is a main component for realizing folding of the electronic equipment, and generally comprises a door plate and a middle beam, wherein the door plate and the middle beam adopt a swing arm to realize rotation of the door plate relative to the middle beam, but as the whole thickness of the electronic equipment is gradually reduced, the lap joint amount between the swing arm and the middle beam is gradually reduced, so that the door plate can possibly generate clamping stagnation when rotating relative to the middle beam.

Disclosure of Invention

The application provides a swing arm, a rotating mechanism and electronic equipment, which are used for solving the problem that the door plate is possibly jammed when rotating relative to a center sill when the overlap joint amount between the swing arm and the center sill is gradually reduced.

The technical scheme is as follows:

a first aspect of the present application provides a swing arm, comprising: a first overlap portion and an extension portion; the first lap joint part is provided with a first lap joint end; the extension part is arranged on the first overlap joint part, the extension part is provided with an extension end, the extension end can extend out of the first overlap joint end of the first overlap joint part, and when the extension part moves relative to the first overlap joint part, the extension end can move towards a direction close to the first overlap joint end.

By adopting the scheme, after the swing arm is applied to the electronic equipment, in the unfolding state of the foldable electronic equipment, the extending end of the extending part extends out of the first lap end of the first lap part, so that the extending part and the first lap part increase the lap joint amount of the swing arm and the middle beam together, and the smoothness of the door plate relative to the middle beam is ensured; when the foldable electronic equipment is in a folded state from an unfolded state, the first lap joint part and the extending part relatively move to enable the extending end to move towards a direction close to the first lap joint end, so that the extending part retracts relative to the first lap joint part, and the integral lap joint length formed by the first lap joint part and the extending part is reduced, so that the electronic equipment can be ensured to be in the folded state under the condition that the sufficient lap joint amount is ensured in the unfolded state, and the integral thickness of the electronic equipment is desirably reduced.

In some implementations, the swing arm further includes a return structure configured to cause the protruding end to have a tendency to move away from the first overlap end.

Through adopting above-mentioned scheme, when the extension end of extension receives the power, reset structure can be compressed, and the extension end of extension just like this removes to being close to the direction of first overlap joint end, and when extension end atress reduces gradually or remove the back, realizes under reset structure's effect that the extension can reset, has realized folding electronic equipment like this and has switched between expansion state and folding state, realizes that the extension also can repeatedly stretch out.

In some implementations, the return structure is a resilient member.

By adopting the scheme, the resetting structure adopts the elastic piece, so that the repeated extension of the extension part can be conveniently realized.

In some implementations, the resilient member is a resilient sheet, a coil spring, or a gas spring.

By adopting the scheme, the elastic sheet is convenient to manufacture and has the characteristic of relatively low cost; the coil spring has the characteristics of relatively low cost, convenient manufacture and capability of providing larger elastic force; and the gas spring has the characteristic of relatively slow change speed.

In some implementations, the first overlapping portion is provided with a accommodating space, the protruding portion is limited in the accommodating space, and the protruding portion can move along a movement track defined by the accommodating space.

By adopting the scheme, the extension part is accommodated in the accommodating space, so that the occupied space of the extension part is reduced, that is, the occupied space of the whole formed by the extension part and the first lap joint part is relatively smaller, and the extension part is moved along the set direction by utilizing the movement track defined by the accommodating space, so that the extension part is extended or retracted along the set direction.

In some implementations, the extension further has an insertion end opposite the extension end, the insertion end extending into the receiving space, the reset structure being located in the receiving space, and the reset structure being in abutment with the insertion end.

By adopting the scheme, the reset structure is arranged in the accommodating space, so that the extension part can be repeatedly extended or retracted along the fixed direction.

In some implementations, the accommodating space includes a groove structure, and a guiding and limiting structure is disposed between a groove wall of the groove structure and the protruding portion, so that the protruding portion moves along the moving track.

Through adopting above-mentioned scheme, set up to the groove structure and be convenient for process on the first overlap joint portion, the direction of movement of extension is convenient for prescribe a limit to the limit structure in addition to make the extension remove along the removal orbit that direction limit structure and groove structure combined action formed, the limit structure also can be followed the settlement position and deviate from in the groove structure to the extension in addition.

In some implementations, the guide limit structure includes a first boss disposed on the extension and a first limit slot disposed on the slot structure; the first boss stretches into the first limit groove.

Through adopting above-mentioned scheme, utilize the cooperation of first boss and first spacing groove can be better carry out spacingly to the extension to make its length extension direction of first spacing groove remove, can inject the removal orbit through the length extension direction of first spacing groove promptly.

In some implementations, the first overlapping portion has a first arc surface and a second arc surface that are disposed opposite to each other, and the length direction of the protruding portion is arc-shaped.

By adopting the scheme, the swing arm can rotate conveniently after being applied to the electronic equipment by arranging the first arc-shaped surface and the second arc-shaped surface; the length direction of the extending part is arc-shaped, so that the extending part can rotate along with the first lap joint part.

In some implementations, the swing arm further includes a second overlap, the first overlap being fixedly connected with the second overlap; the second lap joint part is provided with a third cambered surface and a fourth cambered surface which are opposite.

Through adopting above-mentioned scheme, be convenient for with support door plant connection through setting up the second overlap joint portion to through utilizing third arcwall face and fourth arcwall face in order that the swing arm to be applied to electronic equipment after, realize the rotation of swing arm.

In some implementations, the second overlap has a second overlap end with a stop protrusion.

Through adopting above-mentioned scheme, utilize the backstop arch to be applied to electronic equipment with the swing arm after, realize the spacing to the angle of electronic equipment expansion state, make electronic equipment's expansion state angle in the within range of predetermineeing.

The second aspect of the application provides a rotating mechanism, which comprises a middle beam, a supporting door plate and any swing arm; the middle beam and the supporting door plate are respectively overlapped with the swing arm, and the swing arm can rotate relative to the middle beam.

By adopting the scheme, under the condition of enough overlap joint quantity in the unfolding state, the smoothness of the door plate relative to the rotation of the middle beam is ensured.

In some implementations, the rotating mechanism further includes a cover plate, the cover plate is detachably and fixedly connected with the center sill, the cover plate and the center sill define a rotating space, and the first lap end of the first lap portion extends into the rotating space.

Through adopting above-mentioned scheme, fixed connection can be dismantled with the center sill to the apron, conveniently realizes the installation and the dismantlement of parts such as swing arm, and the rotation space that apron and center sill limited has made things convenient for the installation of the first overlap joint portion of swing arm.

In some implementations, the center sill has a stop bottom surface that is capable of abutting the protruding end.

Through adopting above-mentioned scheme, at swing arm rotation in-process, stretch out end and backstop bottom surface butt to make the extension can move on first overlap joint portion, thereby make the extension can do the withdrawal action, thereby do benefit to the folding of realization electronic equipment.

In some implementations, the rotating mechanism further includes a slider, one end of the slider is rotatably connected with the middle beam, a first sliding groove is formed in the supporting door plate, and the other end of the slider opposite to the first sliding groove is slidably disposed in the first sliding groove.

Through adopting above-mentioned scheme, utilize the slider can realize the rotation connection stability between middle beam and the support door plant.

In some implementations, the rotating mechanism further includes a connection door plate, the swing arm is fixedly connected with the connection door plate, and the connection door plate can rotate with the swing arm relative to the center sill.

Through adopting above-mentioned scheme, connect the door plant and can realize reducing the electronic equipment after folding, support the gap between door plant and the center sill to do benefit to the protection that improves the flexible screen.

The third aspect of the present application provides an electronic device, which includes a first housing, a second housing, and any one of the rotating mechanisms, wherein the rotating mechanism is mounted between the first housing and the second housing.

Drawings

Fig. 1 is a schematic structural view of a swing arm according to an embodiment of the present application;

FIG. 2 is a schematic view of a swing arm according to another embodiment of the present application;

FIG. 3 is a schematic view of a swing arm according to another embodiment of the present application;

FIG. 4 is a schematic view of a swing arm according to another embodiment of the present application;

FIG. 5 is a schematic view of a swing arm according to an embodiment of the present application without an extension;

FIG. 6 is a schematic view of a structure of an extension provided by an embodiment of the present application;

FIG. 7 is a schematic view of a structure of a protrusion according to another embodiment of the present application;

FIG. 8 is a schematic view of an elastic sheet according to an embodiment of the present application;

FIG. 9 is a schematic view of a part of a rotating mechanism according to an embodiment of the present application;

FIG. 10 is a schematic view of another view of a partial structure of a rotating mechanism according to an embodiment of the present application;

FIG. 11 is a schematic view of a partial structure of a rotating mechanism according to an embodiment of the present application;

FIG. 12 is a schematic view of a partial structure of a rotating mechanism (without a cover plate) provided by an embodiment of the present application;

FIG. 13 is an enlarged partial schematic view of FIG. 12 at A;

FIG. 14 is a view showing the rotating mechanism folded 45 degrees according to the embodiment of the present application;

FIG. 15 is a state diagram of the rotating mechanism according to the embodiment of the present application after being folded 90 degrees;

FIG. 16 is a schematic view of a center sill according to an embodiment of the present application;

FIG. 17 is a schematic view of a slider according to an embodiment of the present application;

FIG. 18 is a schematic view of a swing arm according to an embodiment of the present application connected to a door panel;

FIG. 19 is a schematic view of a mounting bracket according to an embodiment of the present application;

FIG. 20 is a state diagram of a mounting bracket provided by an embodiment of the present application mated with a swing arm;

fig. 21 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 22 is a schematic diagram of still another structure of an electronic device according to an embodiment of the present application.

Wherein, the meanings represented by the reference numerals are respectively as follows:

100. swing arms; 101. a first lap joint; 102. an extension; 103. a first overlap end; 104. an extension end; 105. a reset structure; 106. a sheet-like structure; 107. an accommodating space; 108. an insertion end; 109. a first boss; 110. a first limit groove; 111. a first arcuate surface; 112. a second arcuate surface; 113. a second lap joint; 114. a third arcuate surface; 115. a fourth arcuate surface; 116. a second overlap end; 117. a stop protrusion; 118. a connecting body; 119. positioning the boss; 200. a rotating mechanism; 201. a center sill; 202. supporting the door panel; 203. connecting the door plates; 204. a cover plate; 205. a rotation space; 206. a stop bottom surface; 207. a fifth arcuate surface; 208. a slide block; 209. a first chute; 210. an upper groove portion; 211. a lower groove portion; 212. a first body portion; 213. a guide wing; 214. a first positioning hole; 215. an arc-shaped groove; 216. a rotating part; 217. a mounting bracket; 218. a lap joint groove; 219. a blocking surface; 301. a first frame; 302. a second frame; 303. and a display screen.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

It should be understood that references to "a plurality" in this disclosure refer to two or more. In the description of the present application, "/" means or, unless otherwise indicated, for example, A/B may represent A or B; "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, in order to facilitate the clear description of the technical solution of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and function. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

In foldable electronic devices, the rotating mechanism is a main component for realizing folding of the electronic device, and the rotating mechanism generally comprises a door plate and a middle beam, the door plate and the middle beam are rotated by adopting a swing arm, when the whole thickness of the electronic device is required to be reduced, for example, in a folding state, the electronic device is expected to reach a desired thickness value, and in order to meet the thickness requirement, the overlap amount of the swing arm between the swing arm and the middle beam in the folding state is reduced, so that the overlap amount in the folding state is reduced, and further the swing arm between the swing arm and the middle beam is reduced in an unfolding state, and thus, when the electronic device is switched from the unfolding state to the folding state, the phenomenon of switching clamping stagnation is likely to occur.

The embodiment of the application provides a swing arm 100, a rotating mechanism 200 and an electronic device to solve the above problems. The swing arm 100, the rotation mechanism 200, and the electronic apparatus provided in the embodiment of the present application are explained in detail below.

As shown in connection with fig. 1 to 5, a first aspect of the present application provides a swing arm 100, which includes: a first lap portion 101 and an extension portion 102; the first overlap 101 has a first overlap end 103; the extension 102 is mounted on the first overlap 101, the extension 102 having an extension end 104, the extension end 104 being capable of extending beyond the first overlap end 103 of the first overlap 101, the extension end 104 being capable of moving in a direction approaching the first overlap end 103 when the extension 102 moves relative to the first overlap 101.

In at least one embodiment, after the swing arm 100 is applied to the electronic device, in the unfolded state of the foldable electronic device, the extension end 104 of the extension part 102 extends out of the first overlapping end 103 of the first overlapping part 101, so that the extension part 102 and the first overlapping part 101 together increase the overlapping amount of the swing arm 100 and the center sill 201, thereby ensuring the smoothness of the door panel rotating relative to the center sill 201; when the foldable electronic device is moved from the unfolded state to the folded state, the first lap joint part 101 and the protruding part 102 relatively move, so that the protruding end 104 moves towards the direction close to the first lap joint end 103, the protruding part 102 performs retracting action relative to the first lap joint part 101, and at the moment, the overall lap joint length formed by the first lap joint part and the protruding part 102 is reduced, so that the electronic device can be ensured to have ideal thickness reduction in the folded state under the condition that the sufficient lap joint amount is ensured in the unfolded state.

It should be noted that the swing arm 100 is not limited to the connection between the door panel and the center sill 201, but may be applied to other application scenarios that may overlap, have a rotating shaft, or overlap with an imaginary axis, such as a side-hung door, a casement window, or a suspended window. In addition, the swing arm 100 may also be referred to as a tongue.

In some embodiments, the first overlapping portion 101 is configured to overlap the center sill 201 of the rotating mechanism 200 in the electronic device, and the extension 102 is forced during switching between the unfolded and folded states of the electronic device such that the extension 102 is able to move relative to the first overlapping portion 101.

Referring to fig. 1, in some embodiments, the swing arm 100 further includes a return structure 105, the return structure 105 being configured to cause the protruding end 104 to have a tendency to move away from the first overlap end 103. When the extension end 104 moves in a direction approaching the first overlap end 103, the return structure 105 has a tendency to move the extension end 104 in an opposite direction, thus providing the extension end 104 of the extension 102 with the ability to extend or retract relative to the overlap end of the first overlap 101; when the extending end 104 of the extending portion 102 is stressed, the reset structure 105 can be compressed, the extending end 104 of the extending portion 102 moves towards the direction approaching the first overlapping end 103, and when the stress of the extending end 104 is gradually reduced or removed, the extending portion 102 can be reset under the action of the reset structure 105, so that the foldable electronic device can be switched between the unfolded state and the folded state, and the extending portion 102 can be repeatedly extended.

In some embodiments, the return structure 105 is a resilient member, which may facilitate repeated extension of the extension 102. The elastic member has elasticity, and after the stress of the extending end 104 disappears, it can make the extending portion 102 return to the original extending state, so as to ensure that the swing arm 100 has enough overlap under the corresponding application scenario.

In some embodiments, the elastic member is an elastic sheet that is easy to manufacture and has a relatively low cost. Illustratively, the resilient sheet is made of spring steel, which is steel that is specially used for manufacturing springs and resilient elements due to its elasticity in the quenched and tempered condition; as shown in fig. 1 and 8, the elastic sheet is formed by sequentially connecting a plurality of sheet structures 106, and two adjacent sheet structures 106 are in an integral structure, and the surfaces of the two adjacent sheet structures 106 are arranged at an angle, that is, the plurality of sheet structures 106 are connected to form a fold line shape or a wave shape, so that the integral compression or rebound of the elastic sheet is conveniently realized.

It should be noted that, in some other possible embodiments, the elastic member may also be a coil spring or a gas spring; the coil spring has the characteristics of relatively low cost, convenient manufacture and capability of providing larger elastic force; the gas spring has the characteristic of relatively slow change speed; the reset structure 105 is not limited to the above embodiment, but may be a structure capable of realizing repeated extension of the extension 102.

As shown in fig. 1 and 5, in some embodiments, the first overlap portion 101 is provided with a receiving space 107, the extension portion 102 is limited in the receiving space 107, and the extension portion 102 can move along a movement track defined by the receiving space 107, so that the extension portion 102 is accommodated in the receiving space 107, which is beneficial to reducing the space occupied by the extension portion 102, that is, the space occupied by the whole body formed by the extension portion 102 and the first overlap portion 101 is relatively small, and the extension portion 102 is moved along the set direction by using the movement track defined by the receiving space 107, so as to realize extension or retraction of the extension portion 102 along the set direction. The accommodating space 107 may include a slot structure, a blind hole structure, or a mating slot structure and a hole structure, i.e. one end of the slot structure in the length direction is connected to a blind hole.

As shown in connection with fig. 1, 5, 6 and 7, in some embodiments, the extension 102 further has an insertion end 108 opposite the extension end 104, the insertion end 108 extends into the accommodating space 107, the reset structure 105 is located in the accommodating space 107, and the reset structure 105 abuts against the insertion end 108, so that by placing the reset structure 105 in the accommodating space 107, the characteristics of the reset structure 105 are utilized in order to realize that the extension 102 repeatedly extends or retracts in a fixed direction. In one embodiment, one end of the reset structure 105 is abutted against the insertion end 108, and the opposite end of the reset structure 105 is abutted against the wall surface of the accommodating space 107, so that when the protruding portion 102 moves relative to the first lap portion 101, the reset structure 105 can be forced, so that the reset structure 105 is compressed.

In some embodiments, after the reset structure 105 is disposed in the accommodating space 107, a certain limitation needs to be performed on the reset structure 105, so that the reset structure 105 can be compressed in a complementary manner, and cannot be separated from the accommodating space 107 in a use process, and the accommodating space 107 includes a blind hole with a certain length, so that the opposite end of the reset structure 105 is inserted into the blind hole, thereby limiting the reset structure 105, and one end of the reset structure 105 is abutted against the insertion end 108 of the protruding portion 102.

In some embodiments, the accommodating space 107 further includes a groove structure, and a guiding and limiting structure is disposed between a groove wall of the groove structure and the protruding portion 102, so that the protruding portion 102 moves along a moving track, so that the groove structure is convenient for machining on the first lap portion 101, in addition, the guiding and limiting structure is convenient for limiting a moving direction of the protruding portion 102, so that the protruding portion 102 moves along the moving track formed by co-action of the guiding and limiting structure and the groove structure, and in addition, the guiding and limiting structure can only release the protruding portion 102 from the groove structure from a set position. In one embodiment, one end of the slot structure is communicated with the blind hole, so that after at least part of the reset structure 105 is inserted into the blind hole, the limit of the reset structure 105 is realized, and the slot structure and the guiding limit structure cooperate to realize the limit of the installation and the moving direction of the reset structure 105.

As shown in connection with fig. 5, 6 and 7, in some embodiments, the guiding and restraining structure includes a first boss 109 disposed on the protruding portion 102, and a first restraining slot 110 disposed on the slot structure; the first boss 109 extends into the first limiting groove 110, so that the protruding portion 102 can be well limited by utilizing the cooperation of the first boss 109 and the first limiting groove 110, so that the length extending direction of the first limiting groove 110 can move, namely, the moving track can be defined through the length extending direction of the first limiting groove 110. In one embodiment, the extending portion 102 is in a strip structure, two sides of the extending portion 102 in the length direction are respectively provided with a first boss 109, and two opposite groove walls of the groove structure are provided with a first limit groove 110, so that when the extending portion 102 moves in the groove structure, the extending portion 102 can stably move along a moving track relative to the first lap portion 101 due to the fact that the first boss 109 extends into the first limit groove 110; the length of the first limiting groove 110 extends along the length direction of the groove structure, and one end of the first limiting groove 110 in the length direction is in an opening form, so that the first boss 109 of the protruding portion 102 is conveniently inserted into the first limiting groove 110, and installation of the protruding portion 102 is conveniently achieved.

It should be noted that, in some other possible embodiments, the guiding and limiting structure may take other forms, for example, the protruding portion 102 may be provided with a first limiting groove 110, and the groove wall of the groove structure may be provided with a first boss 109, so that the guiding and limiting of the movement of the protruding portion 102 may be implemented.

As shown in fig. 1 and fig. 2, in some embodiments, the first overlap portion 101 has a first arc surface 111 and a second arc surface 112 that are disposed opposite to each other, and the length direction of the extension portion 102 is in an arc shape, so that after the swing arm 100 is applied to an electronic device, the swing arm 100 is turned by disposing the first arc surface 111 and the second arc surface 112; the extending part 102 is arc-shaped in the length direction, so that the extending part 102 can rotate along with the first lap joint part 101; since the length direction of the extension part 102 is arc-shaped, in order to adapt to the extension part 102, the length direction of the groove structure is also arc-shaped to adapt to the extension part 102; the accommodating space 107 is formed on the first arc surface 111, which is beneficial to supporting the extension part 102; the first arcuate surface 111 is located above the second arcuate surface 112.

As shown in conjunction with fig. 3 and 4, in some embodiments, the swing arm 100 further includes a second overlap portion 113, and the first overlap portion 101 is fixedly connected to the second overlap portion 113; the second overlap portion 113 has a third arcuate surface 114 and a fourth arcuate surface 115 opposite to each other, such that the swing arm 100 is rotated by providing the second overlap portion 113 so as to be connected to the support door panel 202, and by using the third arcuate surface 114 and the fourth arcuate surface 115 so as to facilitate the swing arm 100 to be applied to an electronic device. In some embodiments, the first lap portion 101 and the second lap portion 113 are integrally formed, so that the overall structural stability of the swing arm 100 can be improved, the swing arm 100 further comprises a connecting body 118, the first lap portion and the second lap portion 113 are fixedly connected through the connecting body 118, the swing arm 100 further comprises a positioning boss 119, the positioning boss 119 is fixedly connected with the connecting body 118, and the positioning boss 119 is fixedly connected with the door plate 203 connected with the rotating mechanism 200; the third arcuate surface 114 is located above the fourth arcuate surface 115.

Referring to fig. 3, in some embodiments, the second overlap portion 113 has a second overlap end 116, and the second overlap end 116 has a stop protrusion 117, so that the angle of the unfolded state of the electronic device is within a preset range by limiting the angle of the unfolded state of the electronic device after the swing arm 100 is applied to the electronic device by using the stop protrusion 117.

It should be noted that, in some other possible embodiments, the second overlapping portion 113 may also be provided with the protruding portion 102 and the reset structure 105, so as to enable the protruding portion 102 to move relative to the second overlapping portion 113, so as to enable the protruding portion 102 on the second overlapping portion 113 to move relative to the second overlapping portion 113, so as to enable the protruding portion 102 to be protruded or retracted, so as to meet the requirement of the overlapping amount.

Referring to FIG. 9, in one or more embodiments, the present application also provides a turning mechanism 200 comprising a center sill 201, a support door panel 202, and in any embodiment a swing arm 100; the center sill 201 and the support door panel 202 are respectively overlapped with the swing arm 100, and the swing arm 100 can rotate relative to the center sill 201. Thus, when the swing arm 100 of the present application is applied to the rotation mechanism 200, it is possible to achieve a sufficient overlap amount in the unfolded state, so as to ensure the smoothness of the rotation of the door panel with respect to the center sill 201.

Referring to fig. 9 to 13, in some embodiments, two support door panels 202 are provided in the rotation mechanism 200, and the two support door panels 202 are disposed on both sides of the center sill 201 in the longitudinal direction; the support door plate 202 and the swing arm 100 can rotate relatively, namely, the swing arm 100 is rotationally connected with the support door plate 202.

It should be noted that, in some other possible implementations, the first overlapping portion 101 may also overlap the support door panel 202 of the rotation mechanism 200, and the second overlapping portion 113 overlaps the center sill 201.

As shown in connection with fig. 9, 19, and 20, in some embodiments, the rotation mechanism 200 further includes a mounting bracket 217, where the mounting bracket 217 is detachably and fixedly connected to the support door panel 202 by a screw; the second lap portion 113 of the swing arm 100 is rotatably connected with the mounting bracket 217, thereby realizing the rotational connection between the swing arm 100 and the support door panel 202; an arc-shaped lap joint groove 218 is formed in the mounting support 217, a blocking surface 219 is arranged in the lap joint groove 218, the blocking surface 219 is matched with the stop protrusion 117 on the swing arm 100, and when the stop protrusion 117 is abutted against the blocking surface 219, the angle of the unfolding state of the electronic equipment is limited, so that the angle of the unfolding state of the electronic equipment is within a preset range.

As shown in fig. 9, 10, 11 and 16, in some embodiments, the rotation mechanism 200 further includes a cover 204, where the cover 204 is detachably and fixedly connected to the center sill 201, so as to facilitate installation and detachment of the swing arm 100 and other components; the cover 204 and the center sill 201 define a rotation space 205, and the first overlap end 103 of the first overlap portion 101 extends into the rotation space 205, which facilitates installation of the first overlap portion 101 of the swing arm 100. The bridge 201 is provided with a fifth arcuate surface 207 that cooperates with the second arcuate surface 112 to facilitate rotation of the first overlap 101 relative to the bridge 201.

As shown in connection with fig. 12, 13 and 16, in some embodiments, the middle beam 201 has a bottom stop surface 206, where the bottom stop surface 206 can abut against the extended end 104, so that during the rotation of the swing arm 100, the extended end 104 abuts against the bottom stop surface 206, so that the extended portion 102 can move on the first overlapping portion 101, so that the extended portion 102 can perform a retracting action, thereby facilitating the folding of the electronic device; the length of the fifth arc-shaped surface 207 extends to the stop bottom surface 206 to be connected with the stop bottom surface 206, and after the first overlap joint portion 101 rotates relative to the middle beam 201, the extension portion 102 is driven to rotate together, and when the extension end 104 of the extension portion 102 abuts against the stop bottom surface 206 and the first overlap joint portion 101 continues to rotate, the extension portion 102 gradually retracts into the accommodating space 107, so that the extension portion 102 moves relative to the first overlap joint portion 101.

Referring to fig. 9, 10 and 17, in some embodiments, the rotating mechanism 200 further includes a slider 208, one end of the slider 208 is rotatably connected to the center sill 201, a first sliding groove 209 is formed on the support door panel 202, and the opposite end of the slider 208 is slidably disposed in the first sliding groove 209, so that the stability of the rotational connection between the center sill 201 and the support door panel 202 is achieved by using the slider 208. In one embodiment, the first sliding groove 209 includes an upper groove 210 and a lower groove 211, the upper groove 210 has a smaller groove width than the lower groove 211, the slider 208 includes a first body 212 and guide wings 213, the guide wings 213 are located at opposite sides of the first body 212, when one end of the slider 208 is located in the first sliding groove 209, at least part of the structure of the first body 212 is located in the upper groove 210, the guide wings 213 are located in the lower groove 211, and since the upper groove 210 has a smaller groove width than the lower groove 211, the guide wings 213 guide the sliding of the slider 208 in the first sliding groove 209 and allow only the slider 208 to be installed in the length direction of the first sliding groove 209, but the slider 208 cannot be removed from the depth direction of the first sliding groove 209. The sliding block 208 further comprises an arc-shaped rotating portion 216, the rotating portion 216 is rotatably connected with the middle beam 201, the rotating portion 216 can rotate relative to the middle beam 201, and an arc-shaped groove 215 matched with the rotating portion 216 is formed in the middle beam 201.

It should be noted that the structure of the first sliding groove 209 is not limited to the above-mentioned form, and other structures for guiding and limiting the sliding block 208 may be adopted, for example, the first sliding groove 209 is designed as a dovetail groove.

As shown in connection with fig. 9, 14, and 15, in some embodiments, the rotation mechanism 200 further includes a connection door panel 203, the swing arm 100 is fixedly connected with the connection door panel 203, and the connection door panel 203 can rotate with the swing arm 100 relative to the center sill 201; in this way, the gap between the supporting door plate 202 and the middle beam 201 after the electronic equipment is folded can be reduced by connecting the door plate 203, and the protection of the flexible screen is improved. In one embodiment, the number of the connection door panels 203 is two, two connection door panels 203 are located at both sides of the length direction of the center sill 201, and the connection door panels 203 are located between the center sill 201 and the support door panels 202. Referring to fig. 18, in one embodiment, a first positioning hole 214 is formed on the connection door plate 203, and a positioning boss 119 on the swing arm 100 is inserted into the first positioning hole 214, so as to connect the swing arm 100 with the connection door plate 203; the positioning boss 119 and the first positioning hole 214 can be fixedly connected in the direction of interference connection, adhesive connection or screw connection. After the rotating mechanism 200 is applied to the electronic device, the first lap portion 101 of the swing arm 100 is rotationally connected with the center sill 201, the second lap portion 113 of the swing arm 100 is rotationally connected with the supporting door panel 202, the swing arm 100 is fixedly connected with the connecting door panel 203, when the electronic device is folded, the connecting door panel 203 rotates relative to the center sill 201 under the action of external force, and when the swing arm 100 is fixedly connected with the connecting door panel 203, the connecting door panel 203 rotates relative to the center sill 201 together with the swing arm 100.

Referring to fig. 21, in one or more embodiments, the electronic device further includes a first frame 301, a second frame 302, and a rotation mechanism 200 in any embodiment, where the rotation mechanism 200 is installed between the first frame 301 and the second frame 302, so that in a deployed state of the electronic device, the swing arm 100 and the center sill 201 have a sufficient overlap, so as to ensure smoothness of rotation of the door panel relative to the center sill 201. In some embodiments, the electronic device is a foldable electronic device, and an exemplary electronic device may be a cell phone, tablet computer, notebook, or electronic reader. Of course, the electronic device may also be a non-folding electronic device, that is, the rotating mechanism 200 may be applied to not only a foldable electronic device but also other non-folding electronic devices. In the electronic device of the present application, for example, the foldable electronic device further includes a first frame and a second frame 302, and the rotation mechanism 200 is mounted between the first frame 301 and the second frame 302. Illustratively, one of the support door panels 202 is fixedly connected to the first frame 301, and the other support door panel 202 is fixedly connected to the second frame 302; referring to fig. 22, taking an electronic device as an example of a mobile phone, the electronic device further includes a display screen 303, the display screen 303 may be a flexible inner screen, the display screen 303 is respectively connected to the first frame 301 and the second frame 302, and the mobile phone may be an external folding screen mobile phone, where after the external folding screen mobile phone is folded, the first frame 301 is opposite to the second frame 302, so that the display screen 303 is exposed.

It should be noted that, in some other possible embodiments, the mobile phone may also be an internal folding screen mobile phone, where the display 303 is hidden after the internal folding screen mobile phone is folded, and the first frame 301 and the second frame 302 are exposed, so that the display 303 is protected by the first frame 301 and the second frame 302.

In the description of the present application, a particular feature, structure, material, or characteristic may be combined in any one or more embodiments or examples in a suitable manner.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A swing arm, comprising:

a first overlap having a first overlap end; and

the extension part is arranged on the first overlap joint part, the extension part is provided with an extension end, the extension end can extend out of the first overlap joint end of the first overlap joint part, and when the extension part moves relative to the first overlap joint part, the extension end can move towards a direction close to the first overlap joint end.

2. The swing arm of claim 1 further comprising a return structure configured to cause said extended end to have a tendency to move away from said first overlap end.

3. The swing arm of claim 2 wherein said return structure is an elastic member.

4. A swing arm according to claim 3, wherein said resilient member is a resilient sheet, a coil spring or a gas spring.

5. The swing arm according to any one of claims 2 to 4 wherein said first overlap portion defines a receiving space, said extension portion being located within said receiving space and said extension portion being movable along a movement path defined by said receiving space.

6. The swing arm of claim 5 wherein said extension further has an insertion end opposite said extension end, said insertion end extending into said receiving space, said return structure being located in said receiving space and said return structure abutting said insertion end.

7. The swing arm of claim 6 wherein said receiving space includes a slot structure having a guide and limit structure disposed between a slot wall of said slot structure and said extension to move said extension along said path of movement.

8. The swing arm of claim 7 wherein said guide limit structure includes a first boss disposed on said extension and a first limit slot disposed on said slot structure; the first boss stretches into the first limit groove.

9. The swing arm according to any one of claims 1 to 4 wherein said first overlap portion has a first arcuate surface and a second arcuate surface disposed opposite each other, and wherein said extension portion is arcuate in length.

10. The swing arm of any one of claims 1-4, further comprising a second overlap, said first overlap fixedly connected to said second overlap; the second lap joint part is provided with a third cambered surface and a fourth cambered surface which are opposite.

11. The swing arm of claim 10 wherein said second landing has a second landing end, said second landing end having a stop tab.

12. A rotary mechanism comprising a centre sill, a support door panel and a swing arm according to any of claims 1 to 11; the middle beam and the supporting door plate are respectively overlapped with the swing arm, and the swing arm can rotate relative to the middle beam.

13. The swing mechanism according to claim 12 further comprising a cover plate removably fixedly connected to said center sill and defining a rotation space with said center sill, said first overlapping end of said first overlapping portion extending into said rotation space.

14. The rotary mechanism of claim 13, wherein the center sill has a stop bottom surface that is capable of abutting the protruding end.

15. The rotating mechanism according to claim 12, further comprising a slider, wherein one end of the slider is rotatably connected to the center sill, a first sliding slot is formed in the support door plate, and the opposite end of the slider is slidably disposed in the first sliding slot.

16. The swing mechanism of claim 12 further comprising a connecting door panel, said swing arm being fixedly connected to said connecting door panel and said connecting door panel being rotatable with said swing arm relative to said center sill.

17. An electronic device comprising a first housing, a second housing, and a rotating mechanism according to any one of claims 12 to 16, wherein the rotating mechanism is mounted between the first housing and the second housing.