Hinge assembly and electronic device

Abstract

The present disclosure relates to a hinge assembly and an electronic device. The hinge assembly comprises: a rotating assembly, the rotating assembly comprises a first rotating part, the first rotating part comprises a first guide groove extending obliquely around the axial direction of the first rotating part; a hovering mechanism, the hovering mechanism comprises a sliding member and a limiting member, the sliding member comprises a protrusion, the protrusion extends into the first guide groove, and the sliding member is driven to move along the axial direction of the first rotating part when the first rotating part rotates, one of the limiting member and the sliding member comprises a first limiting part, and the other comprises a second limiting part cooperating with the first limiting part; wherein, the first limiting part limits the rotation of the first rotating part when cooperating with the second limiting part, and the limiting is released when the first limiting part is separated from the second limiting part.

Description

Technical Field

[0001] The present disclosure relates to the field of terminal technology, and in particular to a hinge assembly and an electronic device. Background Art

[0002] With the development of flexible OLED display technology and the fact that foldable electronic devices combine the portability of ordinary electronic devices with the ultimate experience of large-screen display when unfolded, foldable electronic devices have gradually become an important trend in the development of mobile terminals and have become an important area of ​​competition among major terminal manufacturers.

[0003] The current state switching of foldable electronic devices mainly relies on hinge components, and the folding and unfolding of the hinge components drives the electronic device to fold and unfold. Summary of the invention

[0004] The present disclosure provides a hinge assembly and an electronic device to solve the deficiencies in the related art.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a hinge assembly, comprising:

[0006] A rotating assembly, the rotating assembly comprising a first rotating portion, the first rotating portion comprising a first guide groove extending obliquely around an axial direction of the first rotating portion;

[0007] A suspension mechanism, wherein the suspension mechanism comprises a sliding member and a limiting member, the sliding member comprises a protruding portion, the protruding portion extends into the first guide groove, and the sliding member is driven to move along the axial direction of the first rotating portion when the first rotating portion rotates, and one of the limiting member and the sliding member comprises a first limiting portion, and the other comprises a second limiting portion cooperating with the first limiting portion;

[0008] Wherein, when the first limiting portion cooperates with the second limiting portion, the rotation of the first rotating portion is limited, and when the first limiting portion is separated from the second limiting portion, the limitation is released.

[0009] Optionally, one of the first limiting portion and the second limiting portion includes at least one protrusion arranged side by side along the axial direction, and the other includes at least one recessed portion arranged side by side along the axial direction;

[0010] Wherein, the same protrusion is used to cooperate with different recesses to limit the first rotating part to different angles.

[0011] Optionally, the limiting member includes an elastic portion, which is arranged in a direction perpendicular to the axial direction of the first rotating portion, one end of the elastic portion is used for fixing, and the other end is connected to the first limiting portion or the second limiting portion.

[0012] Optionally, also include:

[0013] A seat body, the seat body is arranged along the axial direction of the first rotating part, and the first rotating part is rotatably connected to the seat body;

[0014] One of the seat body and the sliding member includes a guide member, and the other includes a second guide groove matched with the guide member.

[0015] Optionally, the seat body includes a bracket and a cover body assembled with the bracket, the guide member is arranged on the bracket, and the first rotating part is rotatably connected to an axial hole surrounded by the bracket and the cover body.

[0016] Optionally, the rotating assembly further comprises a matching portion away from the first rotating portion, and the first rotating portion is used to rotate a seat body connected to an outside or a seat body included in the hinge assembly;

[0017] The hinge assembly also includes:

[0018] A fixed support member, wherein the fixed support member is slidably connected to the matching portion along a direction perpendicular to the axial direction of the first rotating portion;

[0019] A first pull rod, one end of which is movably connected to the seat body, and the other end of which is rotatably connected to the fixed support member;

[0020] A screen support member, wherein the screen support member and the fixed support member are stacked;

[0021] a second pull rod, one end of which is rotatably connected to the first pull rod, and the other end of which is rotatably connected to the screen support;

[0022] Wherein, when the first pull rod moves relative to the base, it pushes the fixed support member to move, the fixed support member slides relatively with the matching portion, and the screen support member is driven to rotate relative to the base through the second pull rod.

[0023] Optionally, the first pull rod includes a movable part, a second rotating part and a connecting part, the connecting part connects the movable part and the second rotating part, the movable part is movably connected to the seat body, the second rotating part is rotationally connected to the fixed support member, and the connecting part is rotationally connected to the second pull rod.

[0024] Optionally, the connecting portion is recessed inwardly from a surface facing the screen support toward a direction away from the screen support.

[0025] Optionally, the seat body includes a first arc-shaped track, and the movable part includes an arc-shaped movable part, and the arc-shaped movable part cooperates with the first arc-shaped track. When the arc-shaped movable part moves along the first arc-shaped track, the fixed support member gradually moves away from or approaches the seat body, and the cooperating part slides relative to the fixed support member.

[0026] Optionally, the seat body includes a bracket and a cover body, the bracket includes a first arc-shaped recessed portion, the cover body includes a first arc-shaped convex portion, and the first arc-shaped convex portion is arranged in the first arc-shaped recessed portion to cooperate to form the first arc-shaped track.

[0027] Optionally, the connecting portion includes a through hole, and the hinge assembly further includes a second rotating shaft, and the second rotating shaft passes through the through hole and is rotatably connected to the second pull rod.

[0028] Optionally, the screen support comprises a notch and a first rotating shaft extending from an inner wall of the notch, and the second pull rod is rotatably connected to the first rotating shaft.

[0029] Optionally, the second pull rod includes a first hinged portion and a second hinged portion, the first hinged portion is rotatably connected to the screen support, and the second hinged portion is rotatably connected to the first pull rod;

[0030] The second hinge part is arranged in a cylindrical shape, wherein two first hinge parts are connected to the second hinge part at intervals, the plane where the axis of the first hinge part is located is parallel to and separated from the plane where the axis of the second hinge part is located, and the plane where the axis of the second hinge part is located is far away from the screen support relative to the plane where the axis of the first hinge part is located.

[0031] Optionally, the fixed support member includes a second arc-shaped recessed portion, the second arc-shaped recessed portion is located at an edge of the fixed support member away from the first pull rod, the hinge assembly further includes a support plate cover, the support plate cover includes a second arc-shaped convex portion, and the second arc-shaped convex portion is disposed in the second arc-shaped recessed portion to cooperate to form a second arc track;

[0032] The screen support comprises a support body and an arc-shaped guide, the support body and the fixed support are stacked, and the arc-shaped guide is matched with the second arc-shaped track.

[0033] Optionally, a group of the fixed support member, the first pull rod and the screen support member that cooperate with each other are arranged on one side of the base body;

[0034] Another group of the fixed support member, the first pull rod and the screen support member that cooperate with each other is arranged on the other side opposite to the base body.

[0035] Optionally, one of the fixed support member and the matching portion includes a slide groove, and the other includes a guide rail.

[0036] Optionally, the thickness of the fixed support member increases gradually from a side close to the base body to a side away from the base body.

[0037] Optionally, the rotating assembly includes a first rotating shaft assembly and a second rotating shaft assembly, the first rotating shaft assembly and the second rotating shaft assembly are arranged opposite to each other, and the first rotating shaft assembly and the second rotating shaft assembly respectively include the first rotating part and a first guide groove arranged on the first rotating part;

[0038] The sliding member includes a plurality of protrusions, at least one of which cooperates with a first guide groove on a first rotating part of the first rotating shaft assembly, and at least one of which cooperates with a first guide groove on a first rotating part of the second rotating shaft assembly.

[0039] According to a second aspect of an embodiment of the present disclosure, there is provided an electronic device, including:

[0040] case;

[0041] Flexible screen;

[0042] As in any one of the hinge assemblies described above, one end of the rotating assembly away from the first rotating portion is used to be connected to the housing to drive the housing to rotate.

[0043] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0044] It can be seen from the above embodiments that in the technical solution of the present invention, the rotation of the rotating assembly can be limited to maintain the hinge assembly in the target position through the coordinated limiting action between the first limiting portion and the second limiting portion of the suspension mechanism. Therefore, when the hinge assembly is subsequently applied to a foldable electronic device, the foldable electronic device can be maintained in the target bending state, thereby enriching the folding methods of the foldable electronic device.

[0045] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0047] Figure 1 It is a schematic structural diagram of a hinge assembly in a flattened state according to an exemplary embodiment.

[0048] Figure 2 yes Figure 1 Schematic diagram of the partial structure of the middle hinge assembly.

[0049] Figure 3 is an exploded schematic diagram of a hinge assembly according to an exemplary embodiment.

[0050] Figure 4 It is a partial cross-sectional schematic diagram showing a hinge assembly in a first state according to an exemplary embodiment.

[0051] Figure 5 is a partial cross-sectional schematic diagram showing a hinge assembly in a second state according to an exemplary embodiment.

[0052] Figure 6 yes Figure 5 A partial three-dimensional schematic diagram of the middle hinge assembly in the second state.

[0053] Figure 7 is a partial cross-sectional schematic diagram of a hinge assembly in a third state according to an exemplary embodiment.

[0054] Figure 8 It is a schematic structural diagram showing a hinge assembly in a folded state according to an exemplary embodiment.

[0055] Fig. 9 It is a partial schematic diagram of a hinge assembly according to an exemplary embodiment.

[0056] Fig.10 It is a partial cross-sectional schematic diagram of a hinge assembly according to an exemplary embodiment.

[0057] Fig.11 It is a partial cross-sectional schematic diagram showing a hinge assembly in an unfolded state according to an exemplary embodiment.

[0058] Fig.12 It is a partial cross-sectional schematic diagram showing a hinge assembly in a folded state according to an exemplary embodiment.

[0059] Fig.13 The present invention is a schematic diagram showing a state of an electronic device according to an exemplary embodiment.

[0060] Fig.14 is another state schematic diagram of an electronic device according to an exemplary embodiment. DETAILED DESCRIPTION

[0061] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0062] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0063] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0064] Figure 1 is a schematic structural diagram of a hinge assembly 100 in a flattened state according to an exemplary embodiment. Figure 2 yes Figure 1 A schematic diagram of a partial structure of the middle hinge assembly 100, Figure 3 FIG. 1 is a schematic diagram of an exploded view of a hinge assembly 100 according to an exemplary embodiment. Figure 1-Figure 3 As shown, the hinge assembly 100 may include a rotating assembly 1 and a suspension mechanism 2. The rotating assembly 1 may include a first rotating portion 11. The axial direction of the first rotating portion 11 may be along Figure 2The first rotating part 11 is arranged in the direction indicated by the arrow A in the middle, and the first rotating part 11 may include a first guide groove 111 extending obliquely around the axial direction of the first rotating part 11. Specifically, the first guide groove 111 may be a spiral groove surrounding the axial direction, or a spiral groove partially surrounding the axial direction of the first rotating part 11. The same first rotating part 11 may include one or more first guide grooves 111, and the present disclosure does not limit this. The hovering mechanism 2 may include a sliding member 21 and a limiting member 22. The sliding member 21 may include a protrusion 211 extending toward the first rotating part 11, and the protrusion 211 may extend into the first guide groove 111, so that when the first rotating part 11 rotates around the axial direction, the first guide groove 111 and the protrusion 211 cooperate to drive the sliding member 21 along the first rotating part 11; the limiting member 22 may include a first limiting portion 221, and the sliding member 21 may include a second limiting portion 212. During the axial movement of the sliding member 21 along the first rotating portion 11, the second limiting portion 212 may move toward the first limiting portion 221 until the first limiting portion 221 cooperates with the second limiting portion 212 to limit the rotation of the first rotating portion 11, thereby maintaining the hinge assembly 100 in the current state, such as being maintained in a bent state or an unfolded state; when the first limiting portion 221 and the second limiting portion 212 are separated, the first rotating portion 11 may continue to rotate axially to switch the state of the hinge assembly 100, such as bending the hinge assembly 100 or unfolding the hinge assembly 100, and the present disclosure does not limit this.

[0065] Based on this, through the cooperative limiting action between the first limiting portion 221 and the second limiting portion 212 of the hovering mechanism 2, the rotation of the rotating assembly 1 can be limited to maintain the hinge assembly 100 in the target position, so that when the hinge assembly 100 is subsequently applied to a foldable electronic device, the foldable electronic device can be maintained in the target bending state, enriching the folding methods of the foldable electronic device.

[0066] In the embodiment provided by the present disclosure, the first limiting portion 221 includes a convex block arranged side by side along the axial direction of the first rotating portion 11, and the second limiting portion 212 includes a plurality of concave blocks arranged side by side along the axial direction of the first rotating portion 11. During the sliding process of the sliding member 21, when at least a portion of the convex block is located in the concave block, the first rotating portion 11 can be limited; and if the sliding member 21 is driven to continue sliding under the action of an external force, the convex block can slide out of the current concave block and fit into another concave block, and at this time, the hinge assembly 100 can be limited to another angle. That is, when the same convex block is limited by different concave blocks, the first rotating portion 11 can be limited to different angles, thereby limiting the hinge assembly 100 to different target bending positions. The more the number of convex blocks and concave blocks, the more angles the first rotating portion 11 can be limited, and multiple sets of mutually matching convex blocks and concave blocks at the same time can improve the stability of limiting the first rotating portion 11 to the target angle. In some other embodiments, the first limiting portion 221 may also include a single protrusion, and the second limiting portion 212 may include a plurality of recesses, thereby also achieving multi-angle limiting of the first rotating portion 11; or, the first limiting portion 221 may also include a plurality of protrusions, and the second limiting portion 212 may include a single recess, thereby also achieving multi-angle limiting of the first rotating portion 11; or, in some other embodiments, when the limiting angle requirement for the first rotating portion 11 is not high, the first limiting portion 221 may include a single protrusion, and the second limiting portion 212 may include a single recess, thereby achieving single-angle limiting of the first rotating portion 11.

[0067] The specific movement process is described in this disclosure by taking the hinge assembly 100 switching from the unfolded state to the folded state as an example. Figure 4 As shown, the hinge assembly 100 is in Figure 1 In the flattened state shown in FIG, the protrusion and the concave portion are limited to the position as shown in FIG. Figure 4 At this time, under the action of external force, the first rotating part 11 rotates, the hinge assembly 100 switches to the bending state, the protrusion and the recess are released, and the sliding member 21 can be Figure 5 Slide upward in the direction indicated by the arrow until the projection and the recess are in the same position as shown in the figure. Figure 5 The hinge assembly 100 can be positioned as shown in FIG. Figure 6 The limit position shown is in the bending state, for example, at this time the hinge assembly 100 is relative to Figure 5 The state of the rotating assembly 1 is rotated 30°; the external force continues to act, the projection and the recess are released, and the sliding member 21 can be Figure 7 Slide upward in the direction indicated by the arrow until the projection and the recess are in the same position as shown in the figure. Figure 7 The hinge assembly 100 can be positioned as shown in FIG. Figure 8The limit position shown is in the bending state, for example, at this time the hinge assembly 100 is relative to Figure 5 In the state, the rotating component 1 is rotated 90°, and the hinge component 100 is switched to the folded state as a whole.

[0068] It should be noted that in the embodiments provided in the present disclosure, the first limiting portion 221 includes a protrusion and the second limiting portion 212 includes a recess. In other embodiments, the first limiting portion 221 may include a recess and the second limiting portion 212 may include a protrusion, and the number of recesses and protrusions may refer to the embodiments provided in the present disclosure, and the present disclosure does not limit this. In some other embodiments, one of the first limiting portion 221 and the second limiting portion 212 may also include a hook, and the other may include a hook groove, and the limiting is achieved by the cooperation of the hook and the hook groove. Of course, the first limiting portion 221 and the second limiting portion 212 may also include other structures for cooperating in limiting, which will not be described one by one here.

[0069] Specifically, in order to improve the hand feel during the folding or unfolding of the hinge assembly 100, the limiter 22 may further include an elastic portion 222, which may be arranged in a direction perpendicular to the axial direction of the first rotating portion 11, that is, may be arranged in a direction perpendicular to the axial direction of the first rotating portion 11. Figure 2 The elastic part 222 is arranged in the direction indicated by the middle arrow B, one end of the elastic part 222 is used for fixing, and the other end can be connected to the first limiting part 221; in this way, during the sliding process of the sliding member 21, when the protrusion and the recess are in a separated state, the second limiting part 212 of the sliding member 21 can press the first limiting part 221, and the elastic part 222 is compressed; and at the moment when the protrusion and the recess are about to be matched, due to the gap provided by the recess, the elastic part 222 can be reset, so that the protrusion is pushed into the recess to achieve limiting. Among them, the elastic part 222 can include a compression spring or other flexible parts, which is not limited by the present disclosure.

[0070] Further, the hinge assembly 100 may also include a seat body 3, which may be arranged along the axial direction of the first rotating shaft 62, and the first rotating part 11 is rotatably connected to the seat body 3, and the end of the elastic part 222 away from the first limiting part 221 may be fixedly connected to the seat body 3; the sliding member 21 may be slidably connected to the seat body 3; specifically, the seat body 3 may include a guide member 31, and the sliding member 21 may include a second guide groove 213, and the guide member 31 may extend into the two guide grooves, so that when the first rotating part 11 rotates relative to the seat body 3, the guide member 31 and the second guide groove 213 are driven to slide relative to each other along the axial direction of the first rotating part 11, and the sliding member 21 slides along the axial direction of the first rotating part 11. Among them, connecting the sliding member 21, the limiting member 22 and the rotating assembly 1 through the seat body 3 is conducive to the integration and centralization of the hinge assembly 100. Of course, in other embodiments, the sliding member 21, the limiting member 22 and the rotating assembly 1 may also be connected to the housing of the target device or other fixed parts, and the present disclosure does not limit this. The seat body 3 may include a bracket 32 ​​and a cover body 33 assembled with the bracket 32, the guide member 31 may be arranged on the bracket 32, and the cover body 33 may be covered, and the sliding member 21 may be arranged between the cover body 33 and the bracket 32, so as to improve the overall aesthetics of the seat body 3; the bracket 32 ​​and the cover body 33 may be assembled to form an axial hole, and the first rotating part 11 may be rotatably connected to the axial hole. In some other embodiments, the seat body 3 may include a second guide groove 213, and the sliding member 21 may include a guide member 31, and the present disclosure does not limit this.

[0071] In the above embodiments, Figure 9-12As shown, the rotating assembly 1 may further include a matching portion 12, and the matching portion 12 is located at an end of the rotating assembly 1 away from the first rotating portion 11, and the first rotating portion 11 is rotatably connected to the seat body 3; or the first rotating portion 11 may also be rotatably connected to a fixed seat outside the hinge assembly 100. The hinge assembly 100 may further include a fixed support 4, a first pull rod 5, a screen support 6, and a second pull rod 7. The fixed support 4 may be arranged on one side of the seat body 3, and the fixed support 4 and the seat body 3 are arranged side by side in a direction perpendicular to the axial direction of the first rotating portion 11. The first rotating portion 11 of the rotating assembly 1 is rotatably connected to the seat body 3, and may extend in a direction perpendicular to the axial direction of the first rotating portion 11, so that the matching portion 12 is slidably connected to the fixed support 4 in a direction perpendicular to the axial direction of the first rotating portion 11; the fixed support 4 may be used later It is connected to the shell of the foldable electronic device equipped with the hinge assembly 100, so that the movement of the fixed support member 4 relative to the base body 3 drives the shell to move relative to the base body 3, thereby realizing the bending and unfolding of the foldable electronic device; one end of the first pull rod 5 is movably connected to the base body 3, and the other end is rotatably connected to the fixed support member 4. The extension direction of the first pull rod 5 is the same as the extension direction of the rotating assembly 1. The screen support member 6 and the fixed support member 4 are stacked, and one end of the second pull rod 7 is rotatably connected to the first pull rod 5, and the other end is rotatably connected to the screen support member 6.

[0072] Based on this, when the hinge assembly 100 is subjected to external force, the first rotating part 11 will rotate relative to the base body 3. In order to avoid jamming, the matching part 12 will slide relative to the fixed support member 4; and due to the relative activity of the first pull rod 5 and the base body 3, the fixed support member 4 can move relative to the base body 3, and the action of the first pull rod 5 can drive the fixed support member 4 away from the base body 3 or close to the base body 3; due to the rotation of the first pull rod 5 and the displacement change of the first pull rod 5 in the direction perpendicular to the axial direction of the first rotating part 11, the second pull rod 7 can rotate relative to the first pull rod 5, and the other end of the second pull rod 7 can drive the screen support member 6 to rotate relative to the base body 3, so that when the flexible screen of the foldable electronic device configured with the hinge assembly 100 is set on the screen support member 6, on the one hand, support can be provided by the screen support member 6 to reduce deformation, and on the other hand, the rotation of the screen support member 6 relative to the base body 3 can avoid interference in the process of folding the flexible screen and affect the flexible screen.

[0073] In the embodiment provided by the present disclosure, a group of mutually cooperating fixed support members 4, first pull rod 5 and screen support member 6 are arranged on one side of the base body 3; another group of mutually cooperating fixed support members 4, first pull rod 5 and screen support member 6 are arranged on the other side opposite to the base body 3. Among them, one fixed support member 4 can be used to connect with one side shell of the electronic device, and another fixed support member 4 can be used to connect with the other side shell of the electronic device, so that the two side shells of the electronic device can be driven to approach or move away from each other through the hinge assembly 100. Among them, the matching portion 12 can include a guide rail, and the fixed support member 4 can include a slide groove, which cooperates with the guide rail to realize the sliding connection between the fixed support member 4 and the matching portion 12. Of course, in order to accommodate the matching portion 12, the fixed support member 4 can include a recessed groove, and the slide groove can be arranged on the inner wall of the recessed groove. In other embodiments, the matching portion 12 can also include a slide groove and the fixed support member 4 can include a guide rail, and the present disclosure does not limit this.

[0074] The following will provide examples for each structure. The first pull rod 5 may include a movable portion 51, a second rotating portion 52 and a connecting portion 53, wherein the connecting portion 53 connects the movable portion 51 and the second rotating portion 52, the movable portion 51 is movably connected to the seat body 3, and the second rotating portion 52 is rotatably connected to the fixed support member 4. Based on this, when the movable portion 51 moves relative to the seat body 3, the second rotating portion 52 can be pushed to move along the length direction of the first pull rod 5, and the second rotating portion 52 can drive the fixed support member 4 to rotate relative to the seat body 3, while pushing the fixed support member 4 to move closer to or away from the seat body 3. In particular, when the fixed support members 4 are arranged on both sides of the base body 3, when the hinge assembly 100 is switched from the folded state to the unfolded state, the fixed support members 4 can move close to the base body 3, and the fixed support members 4 on both sides can move close to each other on the back of the base body 3 to cover the base body 3, so that the back of the hinge assembly 100 is flat and improves the aesthetics; and when the hinge assembly 100 is switched from the unfolded state to the folded state, the fixed support members 4 can move away from the base body 3 until Figure 8 In the state shown, the fixed support member 4 is prevented from interfering with the flexible screen.

[0075] Regarding the movable connection between the movable portion 51 and the seat body 3, specifically, the seat body 3 may include a first arcuate track 34, and the movable portion 51 may include an arcuate movable portion 51, such as a semicircular arcuate movable portion 51, which extends from the end into the first arcuate track 34 to match the first arcuate track 34. Based on this, when the arcuate movable portion 51 moves in the first arcuate track 34, on the one hand, the relative rotation of the first pull rod 5 and the seat body 3 can be achieved, and at the same time, the position between the arcuate movable portion 51 and the first arcuate track 34 is changed, so that the second rotating portion 52 will move away from or close to the seat body 3, thereby driving the fixed support member 4 to move away from or close to the seat body 3. For the convenience of installation, the bracket 32 ​​of the seat body 3 may include a first arcuate recessed portion 321, and the cover body 33 of the seat body 3 may include a first arcuate convex portion 331. For example, the first arcuate recessed portion 321 may be arranged in a semicircular shape, and the first arcuate convex portion 331 may also be arranged in a semicircular shape, but the radius of the first arcuate convex portion 331 is smaller than the radius of the first arcuate recessed portion 321, so that when the first arcuate convex portion 331 is matched with the first arcuate recessed portion 321, the first arcuate track 34 may be formed due to the radius difference. Of course, only the first arcuate convex portion 331 and the first arcuate recessed portion 321 are arranged in a semicircular shape as an example for explanation. In other embodiments, other shapes may also be adopted, as long as the movable portion 51 can generate a displacement change while rotating relative to the first arcuate track 34.

[0076] The connection portion 53 may be recessed inward from the surface facing the screen support 6 toward the direction away from the screen support 6, thereby increasing the spatial distance between the connection portion 53 and the screen support 6, providing space for the arrangement of the second pull rod 7, and reducing the difficulty of assembling the second pull rod 7. The connection portion 53 may include a through hole 531, and the through hole 531 may pass through the connection portion 53 along the axial direction of the first rotating portion 11. The hinge assembly 100 may also include a second rotating shaft 8, which passes through the through hole 531 on the connection portion 53 and is rotatably connected to the second pull rod 7, thereby realizing the rotational connection between the second pull rod 7 and the first pull rod 5. Based on this, the first pull rod 5 can push the screen support 6 to move through the second pull rod 7, while avoiding the first pull rod 5 and the second pull rod 7 from getting stuck.

[0077] As for the rotational connection between the second pull rod 7 and the screen support 6, specifically, the screen support 6 may include a notch 61 and a first shaft 62 extending inward from the inner wall of the notch 61, and the end of the second pull rod 7 away from the connecting portion 53 is rotationally connected to the first shaft 62, and the end of the second pull rod 7 away from the connecting portion 53 can be located in the notch 61. Therefore, when the first pull rod 5 moves, the end of the second pull rod 7 away from the connecting portion 53 can act on the screen support 6, driving the screen support 6 to rotate relative to the base 3. Of course, in the embodiment of the present disclosure, the rotational connection between the second pull rod 7 and the screen support 6 is explained by taking the notch 61 and the first rotating shaft 62 arranged in the notch 61 as an example. In other embodiments, the screen support 6 and the second pull rod 7 can also be rotationally connected in other ways. For example, the surface of the screen support 6 facing the connecting portion 53 can extend toward the connecting portion 53 to form a mounting portion, and an axial hole is formed on the mounting portion, and the second pull rod 7 and the mounting portion are rotationally connected through the first rotating shaft 62. Compared with this technical solution, the notch 61 is used in the embodiment of the present disclosure, which can increase space for the arrangement of the second pull rod 7, which is beneficial to the thinning of the overall thickness of the hinge assembly 100 and the trend of lightweight development of electronic devices equipped with the hinge assembly 100.

[0078] In the embodiment provided by the present disclosure, the second pull rod 7 may include a first hinge portion 71 and a second hinge portion 72. The first hinge portion 71 may be rotatably connected to the screen support 6, and the second hinge portion 72 may be rotatably connected to the first pull rod 5. The first hinge portion 71 may be arranged in a cylindrical shape. The second pull rod 7 includes two second hinge portions 72 arranged at intervals, and each second hinge portion 72 is connected to the first hinge portion 71. In addition, the plane where the axis of the first hinge portion 71 is located is parallel to the plane where the axis of the second hinge portion 72 is located, and the two planes are spaced apart from each other by a certain distance. The plane where the axis of the second hinge portion 72 is located is far away from the screen support 6 relative to the plane where the axis of the first hinge portion 71 is located. Based on this, when the first pull rod 5 drives the second pull rod 7 to rotate, the hinge portion of the second pull rod 7 will always cooperate with the screen support 6, and during the rotation of the second pull rod 7, the second hinge portion 72 will always be at a position far away from the screen support 6. When the hinge assembly 100 switches to the position as shown in FIG. Fig.12 In the folded state shown, the second hinge portion 72 will face outward relative to the screen support 6, thereby providing sufficient space for the flexible screen arranged on the screen support 6, ensuring that the bending radius of the flexible screen after bending is maximized, and effectively reducing the bending stress of the flexible screen.

[0079] In the above embodiment, in order to guide and limit the movement of the screen support 6 relative to the base 3, the hinge assembly 100 may further include a support plate cover 9, the support plate cover 9 may include a second arc-shaped protrusion 91, the fixed support 4 may include a second arc-shaped recess 41, the second arc-shaped recess 41 is located at a side edge of the fixed support 4 away from the first pull rod 5, and the second arc-shaped protrusion 91 of the support plate cover 9 may be arranged in the second arc-shaped recess 41 to cooperate with the second arc-shaped recess 41 to form a second arc track. The screen support 6 may include a support body 63 and an arc-shaped guide 64, the support body 63 may be arranged in a plate shape and stacked with the fixed support 4, the arc-shaped guide 64 is arranged at the edge of the support body 63, and the arc-shaped guide 64 cooperates with the second arc-shaped track. Based on this, during the movement of the fixed support 4 relative to the base 3, the screen support 6 can move adaptively to avoid being stuck.

[0080] The second arc-shaped protrusion 91 can be set in a semi-spherical shape, the cross-section of the second arc-shaped recessed portion 41 can be set in a semi-circular shape, and the radius of the second arc-shaped protrusion 91 can be smaller than the radius of the second arc-shaped recessed portion 41, so that when the second arc-shaped protrusion 91 is located in the second arc-shaped recessed portion 41, a second arc-shaped track can be formed. The arc-shaped guide member 64 of the screen support member 6 can be an arc-shaped plate with a semi-circular cross-section. Of course, here only the second arc-shaped track and the arc-shaped guide member 64 are both semi-circular as an example for explanation. In other embodiments, the second arc-shaped track and the arc-shaped guide member 64 can also be set in other arc shapes, and the present disclosure does not limit this.

[0081] In the embodiment provided in the present disclosure, the thickness of the fixing support member 4 increases gradually from the side close to the seat body 3 to the side away from the seat body 3. Figure 2 The thickness of the fixed support member 4 increases from left to right. Fig.12 The thickness of the fixed support member 4 increases from bottom to top. Fig.12 As shown, when the hinge assembly 100 is switched to the folded state, the bending radius of the bending part of the flexible screen is the largest, and the flexible screen away from the bending part will be relatively arranged, so that by setting the thickness of the fixed support member 4 in an increasing manner, the area with a smaller thickness of the fixed support member 4 is closer to the bending area of ​​the flexible screen than the area with a thicker thickness, so as to adapt to the shape change of the flexible screen from the unfolded state to the folded state, and avoid the fixed support member 4 from squeezing the flexible screen. When the flexible screen switches from the folded state to the unfolded state, the space gap between the thinner area of ​​the fixed support member 4 and the screen support plate can be compensated by the second pull rod 7, and the screen support plate is supported by the second pull rod 7.

[0082] In the above embodiments, in order to realize the synchronous movement of the two sides of the seat body 3, the shaft assembly may include a first shaft assembly and a second shaft assembly, the first shaft assembly and the second shaft assembly may be arranged relative to the seat body 3, and the first shaft assembly and the second shaft assembly may respectively include a first rotating portion 11, a first guide groove 111 and a matching portion 12, the sliding member 21 may include a plurality of protrusions 211, wherein at least one protrusion 211 matches with the first guide groove 111 of the first shaft assembly, and at least one protrusion 211 matches with the first guide groove 111 of the second shaft assembly, the matching portion 12 of the first shaft assembly may be slidably connected with the fixed support member 4 located on the same side as the first shaft assembly, and the matching portion 12 of the second shaft assembly may be slidably connected with the fixed support member 4 located on the same side as the second shaft assembly. Based on this, when the first rotating portion 11 of either the first rotating portion 11 of the second rotating portion 1 rotates, the other may be driven to rotate synchronously by the sliding member 21, so as to realize the synchronous folding of the two sides of the hinge assembly 100.

[0083] Based on the technical solution disclosed in the present invention, Fig.13 He Ru Fig.14 As shown, the present disclosure further provides an electronic device 200, which may include a housing 201, a flexible screen 202 and a hinge assembly 100, wherein the flexible screen 202 may be laid flat on the housing 201, and an end of the rotating assembly 1 of the hinge assembly 100 away from the first rotating part 11 is used to be connected to the housing 201, for example, the first rotating part 11 may be connected to the housing 201 through a fixed support 4 to drive the housing 201 to rotate, so as to realize the electronic device 200 Fig.13 The expanded state shown and Fig.14 Toggles between the collapsed states shown.

[0084] Specifically, the housing 201 may include a left housing and a right housing, the flexible screen 202 is laid flat on the left housing and the right housing, the left housing may be connected to the fixed support member 4 on one side of the hinge assembly 100, and the right housing may be connected to the fixed support member 4 on the other side of the hinge assembly 100. Based on this, when the hinge assembly 100 is bent, the two fixed support members 4 of the hinge assembly 100 will move closer to or farther from each other, thereby driving the left housing and the right housing to move closer to or farther from each other, so that the flexible screen 202 is synchronously bent or unfolded.

[0085] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0086] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A hinge assembly, characterized in that: include: A rotating assembly, the rotating assembly comprising a first rotating portion, the first rotating portion comprising a first guide groove extending obliquely around an axial direction of the first rotating portion; A suspension mechanism, wherein the suspension mechanism comprises a sliding member and a limiting member, wherein the sliding member comprises a protruding portion, wherein the protruding portion extends into the first guide groove, and when the first rotating portion rotates, the sliding member is driven to move along the axial direction of the first rotating portion, and the limiting member comprises a first limiting portion, and the sliding member comprises a second limiting portion cooperating with the first limiting portion; Wherein, when the first limiting part cooperates with the second limiting part, the rotation of the first rotating part is limited, and when the first limiting part is separated from the second limiting part, the limitation is released; The rotating assembly further comprises a matching portion away from the first rotating portion, wherein the first rotating portion is used to rotate a seat body connected to an outside or a seat body included in the hinge assembly; The hinge assembly also includes: A fixed support member, wherein the fixed support member is slidably connected to the matching portion along a direction perpendicular to the axial direction of the first rotating portion; A first pull rod, one end of which is movably connected to the seat body, and the other end of which is rotatably connected to the fixed support member; A screen support member, wherein the screen support member and the fixed support member are stacked; a second pull rod, one end of which is rotatably connected to the first pull rod, and the other end of which is rotatably connected to the screen support; Wherein, when the first pull rod moves relative to the base, it pushes the fixed support member to move, the fixed support member slides relatively with the matching portion, and the screen support member is driven to rotate relative to the base through the second pull rod.

2. The hinge assembly according to claim 1, characterized in that: One of the first limiting portion and the second limiting portion includes at least one protrusion arranged side by side along the axial direction, and the other includes at least one recessed portion arranged side by side along the axial direction; Wherein, the same protrusion is used to cooperate with different recesses to limit the first rotating part to different angles.

3. The hinge assembly according to claim 1, characterized in that: The limiting member includes an elastic portion, which is arranged in a direction perpendicular to the axial direction of the first rotating portion. One end of the elastic portion is used for fixing, and the other end is connected to the first limiting portion or the second limiting portion.

4. The hinge assembly according to claim 1, characterized in that: Also includes: A seat body, the seat body is arranged along the axial direction of the first rotating part, and the first rotating part is rotatably connected to the seat body; One of the seat body and the sliding member includes a guide member, and the other includes a second guide groove matched with the guide member.

5. The hinge assembly according to claim 4, characterized in that: The seat body comprises a bracket and a cover body assembled with the bracket, the guide member is arranged on the bracket, and the first rotating part is rotatably connected in an axial hole surrounded by the bracket and the cover body.

6. The hinge assembly according to claim 1, characterized in that: The first pull rod includes a movable portion, a second rotating portion and a connecting portion, the connecting portion connects the movable portion and the second rotating portion, the movable portion is movably connected to the seat body, the second rotating portion is rotationally connected to the fixed support member, and the connecting portion is rotationally connected to the second pull rod.

7. The hinge assembly according to claim 6, characterized in that: The connection portion is recessed inwardly from a surface facing the screen support member toward a direction away from the screen support member.

8. The hinge assembly according to claim 6, characterized in that: The seat body includes a first arc-shaped track, and the movable part includes an arc-shaped movable part, which is matched with the first arc-shaped track. When the arc-shaped movable part moves along the first arc-shaped track, the fixed support member gradually moves away from or close to the seat body, and the matching part slides relative to the fixed support member.

9. The hinge assembly according to claim 8, characterized in that: The seat body includes a bracket and a cover body, the bracket includes a first arc-shaped recessed portion, the cover body includes a first arc-shaped convex portion, and the first arc-shaped convex portion is arranged in the first arc-shaped recessed portion to cooperate to form the first arc-shaped track.

10. The hinge assembly according to claim 6, characterized in that: The connecting portion includes a through hole, and the hinge assembly also includes a second rotating shaft, the second rotating shaft passes through the through hole and is rotatably connected to the second pull rod.

11. The hinge assembly according to claim 1, characterized in that: The screen support comprises a notch and a first rotating shaft extending from an inner wall of the notch, and the second pull rod is rotatably connected to the first rotating shaft.

12. The hinge assembly according to claim 1, characterized in that: The second pull rod comprises a first hinged portion and a second hinged portion, the first hinged portion is rotatably connected to the screen support, and the second hinged portion is rotatably connected to the first pull rod; The second hinge part is arranged in a cylindrical shape, wherein two first hinge parts are connected to the second hinge part at intervals, the plane where the axis of the first hinge part is located is parallel to and separated from the plane where the axis of the second hinge part is located, and the plane where the axis of the second hinge part is located is far away from the screen support relative to the plane where the axis of the first hinge part is located.

13. The hinge assembly according to claim 1, characterized in that: The fixed support member includes a second arc-shaped recessed portion, the second arc-shaped recessed portion is located at an edge of the fixed support member away from the first pull rod, the hinge assembly also includes a support plate cover, the support plate cover includes a second arc-shaped convex portion, the second arc-shaped convex portion is arranged in the second arc-shaped recessed portion to cooperate to form a second arc track; The screen support comprises a support body and an arc-shaped guide, the support body and the fixed support are stacked, and the arc-shaped guide is matched with the second arc-shaped track.

14. The hinge assembly according to claim 1, characterized in that: A group of mutually cooperating fixed support members, the first pull rod and the screen support member are arranged on one side of the base body; Another group of the fixed support member, the first pull rod and the screen support member that cooperate with each other is arranged on the other side opposite to the base body.

15. The hinge assembly according to claim 1, characterized in that: One of the fixed support member and the matching portion includes a slide groove, and the other includes a guide rail.

16. The hinge assembly according to claim 1, characterized in that The thickness of the fixing support increases gradually from a side close to the seat body to a side away from the seat body.

17. The hinge assembly according to claim 1, characterized in that: The rotating assembly includes a first rotating shaft assembly and a second rotating shaft assembly, the first rotating shaft assembly and the second rotating shaft assembly are arranged opposite to each other, and the first rotating shaft assembly and the second rotating shaft assembly respectively include the first rotating part and a first guide groove arranged on the first rotating part; The sliding member includes a plurality of protrusions, at least one of which cooperates with a first guide groove on a first rotating part of the first rotating shaft assembly, and at least one of which cooperates with a first guide groove on a first rotating part of the second rotating shaft assembly.

18. An electronic device, characterized in that: include: case; Flexible screen; According to the hinge assembly as described in any one of claims 1-17, one end of the rotating assembly away from the first rotating part is used to be connected to the shell to drive the shell to rotate.

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