Supporting device and electronic equipment

Abstract

The embodiment of the invention relates to the technical field of folding terminals, and provides a supporting device and electronic equipment. The supporting device comprises a first shell, a second shell, a third shell, a first folding mechanism, a second folding mechanism and a locking mechanism. The first shell and the second shell can be oppositely unfolded or folded through the first folding mechanism. And the second shell and the third shell can be relatively unfolded or relatively folded through the second folding mechanism. When the supporting device is in a completely folded state, the third shell, the first shell and the second shell are stacked in sequence. The locking mechanism is arranged in the second folding mechanism. When the first shell and the second shell are in the unfolded state, the locking mechanism locks the second folding mechanism so as to prevent the second shell and the third shell from being oppositely folded through the second folding mechanism. And when the first shell and the second shell are in a completely folded state, the locking mechanism unlocks the second folding mechanism, and the second shell and the third shell can be relatively unfolded or relatively folded through the second folding mechanism.

Description

Technical Field

[0001] This application relates to the field of foldable terminal technology, and more specifically, to support devices and electronic devices. Background Technology

[0002] Existing multi-fold electronic devices with three-fold or similar structures have complex folding mechanisms and various folding methods. If users use an inappropriate folding sequence, it can damage the folding mechanism and / or display screen of the multi-fold electronic device, affecting its lifespan. Summary of the Invention

[0003] This application provides a support device. The support device includes a first housing, a second housing, a third housing, a first folding mechanism, a second folding mechanism, and a locking mechanism. The first folding mechanism is connected between the first housing and the second housing, and the first and second housings can be unfolded or folded relative to each other via the first folding mechanism. The second folding mechanism is connected between the second housing and the third housing, and the second and third housings can be unfolded or folded relative to each other via the second folding mechanism. When the support device is in a fully folded state, the third housing, the first housing, and the second housing are stacked sequentially. The locking mechanism is disposed in the second folding mechanism. When the first and second housings are in an unfolded state, and the second and third housings are in an unfolded state, the locking mechanism locks the second folding mechanism to prevent the second and third housings from folding relative to each other via the second folding mechanism. When the first and second housings are in a fully folded state, the locking mechanism releases the lock on the second folding mechanism, and the second and third housings can be unfolded or folded relative to each other via the second folding mechanism.

[0004] In this support device, when the first and second housings are in the unfolded state, the locking mechanism locks the second folding mechanism to prevent the second and third housings from folding relative to each other via the second folding mechanism; when the first and second housings are in the fully folded state, the locking mechanism releases the lock on the second folding mechanism to allow the second and third housings to unfold or fold relative to each other via the second folding mechanism. This helps to prevent damage to the folding mechanism caused by the user mistakenly folding the second and third housings while the first and second housings are not closed.

[0005] In some embodiments, the second folding mechanism includes a first connector and a moving member. The first connector is fixedly connected to the second housing, and the moving member is slidably connected to the first connector. The first connector has a receiving space, and the locking mechanism includes a locking member and a resetting member. The locking member is at least partially received within the receiving space, and the resetting member is received within the receiving space and connected to the locking member. When the first and second housings are in the unfolded state, and when the second and third housings are in the unfolded state, the locking member is locked to the moving member. The first housing is provided with an unlocking member. During the process of switching the first and second housings from the unfolded state to the fully folded state, the unlocking member drives the locking member to move away from the moving member, so that the locking member releases the locking member from the moving member. During the process of switching the first and second housings from the fully folded state to the unfolded state, the resetting member drives the locking member to move towards the moving member, so that the locking member resets.

[0006] By introducing a sliding connection between the first connecting member and the moving member in the second folding mechanism, and a locking member and a resetting member in the locking mechanism, automatic locking and unlocking functions are provided. When the support device is in the fully unfolded state, the locking member and the moving member automatically lock, allowing the support device to close in an orderly manner; when the first and second housings are closed, the locking member and the moving member automatically unlock, facilitating the folding of the second and third housings. The use of the resetting member helps ensure that the locking member automatically resets when needed, improving ease of use and safety.

[0007] In some embodiments, the unlocking member includes a boss protruding from the first housing. The locking mechanism also includes a pressing member, which is received within a receiving space, kinetically connected to the locking member, and exposed to the first connecting member. When the first and second housings are in a fully folded state, the projection of the boss and the projection of the pressing member at least partially coincide along the thickness direction of the support device. The second folding mechanism includes a first swing arm, which includes a first rotating end and a first sliding end. The first rotating end is rotatably connected to the second housing, and the first sliding end is slidably connected to the first connecting member. The moving member includes the first swing arm, the first sliding end includes a first locking portion, and the locking member includes a second locking portion. When the first and second housings are in an unfolded state, and when the second and third housings are in an unfolded state, the first locking portion locks with the second locking portion. During the transition from the unfolded state to the fully folded state, the boss drives the pressing member to move in a direction away from the first housing, so that the pressing member drives the second locking portion to move in a direction away from the first locking portion, thereby unlocking the first locking portion from the second locking portion. During the process of switching from a fully folded state to an unfolded state, the reset member drives the second locking part to move closer to the first locking part, so as to lock the first locking part and the second locking part.

[0008] By designing the unlocking element (such as a boss) and the pressing element in tandem, the second folding mechanism can be automatically unlocked when the first and second housings are closed, thanks to the action of the boss. This reduces the complexity of manual operation for the user. At the same time, the addition of the first swing arm makes the structure more stable and the locking and unlocking process smoother.

[0009] In some embodiments, one of the first locking part and the second locking part is a locking groove, and the other is a latch. The latch can extend into the locking groove to lock the second folding mechanism, or the latch can move out of the locking groove to release the locking of the second folding mechanism.

[0010] By using the combination of locking groove and latch, the second folding mechanism can be effectively locked and unlocked.

[0011] In some embodiments, the receiving space includes a first limiting hole, and the pressing member includes a first limiting portion. The first limiting portion is slidably disposed in the first limiting hole, and the first limiting hole and the first limiting portion cooperate to restrict the movement of the pressing member in a direction different from the thickness direction of the support device.

[0012] The design of the first limiting hole and the first limiting part restricts the movement direction of the pressing part, which helps to prevent the locking mechanism from failing due to misoperation and improves the movement accuracy of the pressing part during the unlocking process.

[0013] In some embodiments, the locking mechanism further includes a slider housed within a receiving space and slidably connected to a pressing member. The locking member is hinged to the slider and rotatably connected to a first connecting member, or the locking member is rotatably connected to the slider and slidably connected to the first connecting member. The pressing member includes a first inclined surface facing the slider, and the slider includes a second inclined surface facing the pressing member, the second inclined surface being adapted to the first inclined surface to allow the pressing member to slide relative to the slider under the action of the boss, thereby causing the slider to unlock the locking member from the first swing arm.

[0014] The addition of a slider and the beveled design between the press and the slider allow the press to slide smoothly during the unlocking process, further improving the efficiency and reliability of locking and unlocking.

[0015] In some embodiments, the reset member includes a first end and a second end opposite to each other, the first end being fixedly connected to the slider, and the second end abutting against the inner wall of the first connector forming the receiving space.

[0016] The design of the reset component helps ensure that the slider can automatically reset after unlocking, reducing the number of steps required for the user and improving ease of use.

[0017] In some embodiments, the locking member is slidably connected to the first connecting member. The pressing member includes a first inclined surface facing the locking member, and the locking member includes a third inclined surface facing the pressing member, the third inclined surface being adapted to the first inclined surface so that the pressing member, under the action of the boss, drives the first swing arm relative to the locking member to slide, thereby unlocking from the first swing arm.

[0018] The beveled design between the locking and pressing parts ensures that the locking part can move smoothly during the unlocking process, thereby enhancing the smoothness and reliability of unlocking.

[0019] In some embodiments, the reset member includes a first end and a second end opposite to each other, the first end being fixedly connected to the locking member, and the second end abutting against the inner wall of the first connector forming a receiving space.

[0020] The design of the reset component ensures that the locking component can automatically reset after unlocking, which improves the automation level of the support device and reduces the user's operational burden.

[0021] In some embodiments, the receiving space includes a second limiting hole extending along a first direction, which is the direction in which the locking member slides relative to the second housing. The locking member includes a second limiting portion slidably disposed within the second limiting hole, and the second limiting hole and the second limiting portion cooperate to restrict the movement of the locking member in a direction other than the first direction.

[0022] The design of the second limiting hole and the second limiting part restricts the movement direction of the locking member, which helps to ensure that the movement of the locking member is only in the predetermined direction and prevents misoperation.

[0023] In some embodiments, the support device includes at least two locking mechanisms, which are spaced apart within the second folding mechanism.

[0024] By incorporating multiple locking mechanisms, a more uniform and stable locking effect can be achieved. Compared to a single locking point, multiple spaced locking mechanisms can better distribute load and stress, reducing structural deformation or instability that may result from uneven stress at a single point during use. Furthermore, through the coordinated action of multiple locking mechanisms, even if one mechanism fails unexpectedly, the others can still provide the necessary locking function, thus ensuring the safety of the device during use. This redundant design improves the reliability of the support device and reduces safety hazards caused by locking failures.

[0025] A second aspect of this application provides an electronic device. The electronic device includes a flexible display screen and a support device according to the first aspect of this application. A first housing, a second housing, a third housing, a first folding mechanism, and a second folding mechanism jointly support the flexible display screen.

[0026] The electronic device of the second aspect of this application has at least the same advantages as the support device of the first aspect, which will not be repeated here.

[0027] In some embodiments, when the first and second housings are folded relative to each other, both the first and second housings fold towards the side where the flexible display screen is located. When the second and third housings are folded relative to each other, both the second and third housings fold towards the side where the flexible display screen is located.

[0028] By designing the relative folding directions of the first, second, and third housings, the flexible display screen is effectively protected by the housings in the folded state, thus improving the lifespan of electronic devices. Attached Figure Description

[0029] Figure 1 Figures (a), (b), and (c) are side views of the support device in the related art in the fully unfolded, partially folded, and fully folded states, respectively. Figure 1 Figure (d) in the figure is a side view of an inappropriate folding sequence of a support device in the related art.

[0030] Figure 2 This is a schematic diagram of the structure of an electronic device according to the first embodiment of this application.

[0031] Figure 3 for Figure 2 A schematic diagram of the structure of the central support device when the first and second shells are in the deployed state, and when the second and third shells are in the deployed state.

[0032] Figure 4 for Figure 3 A schematic diagram of the second folding mechanism and locking mechanism.

[0033] Figure 5 This is a partially exploded view of the second folding mechanism and locking mechanism in the support device of the electronic device according to the first embodiment of this application.

[0034] Figure 6 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, in which the locking mechanism and the second folding mechanism are in the locked state.

[0035] Figure 7 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, when the locking mechanism and the second folding mechanism are in the unlocked state and the second housing and the third housing are in the unfolded state.

[0036] Figure 8 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, when the locking mechanism and the second folding mechanism are in the unlocked state and the second housing and the third housing are in the fully folded state.

[0037] Figure 9 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, during the process of the first and second housings switching from the unfolded state to the fully folded state when the second and third housings are in the unfolded state.

[0038] Figure 10 This is a cross-sectional view of a support device in an electronic device according to the first embodiment of the present application, during the process of switching the first and second housings from the unfolded state to the fully folded state when the second and third housings are in the unfolded state.

[0039] Figure 11 for Figure 10 Enlarged schematic diagram of point XI in the middle.

[0040] Figure 12 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, when the second and third housings are in an unfolded state and the first and second housings are in a fully folded state.

[0041] Figure 13 This is a cross-sectional view of the support device in the electronic device according to the first embodiment of this application, with the second and third housings in an unfolded state and the first and second housings in a fully folded state.

[0042] Figure 14 for Figure 13 Enlarged diagram of point XIV.

[0043] Figure 15 This is a schematic diagram of the structure of the support device in the electronic device according to the first embodiment of this application, when the first housing and the second housing are in a fully folded state, and when the second housing and the third housing are in a fully folded state.

[0044] Figure 16 This is a cross-sectional view of the support device in the electronic device according to the first embodiment of the present application, when the first housing and the second housing are in a fully folded state, and when the second housing and the third housing are in a fully folded state.

[0045] Figure 17 for Figure 16 Enlarged schematic diagram of point XVII in the middle.

[0046] Figure 18 This is a schematic diagram of the structure of the second folding mechanism and the locking mechanism in the support device of the second embodiment of this application.

[0047] Figure 19 This is a schematic diagram of the structure of the support device in the second embodiment of this application, with the locking mechanism and the second folding mechanism in the locked state.

[0048] Figure 20 This is a schematic diagram of the structure of the support device according to the second embodiment of this application, when the locking mechanism and the second folding mechanism are in the unlocked state and the second housing and the third housing are in the unfolded state.

[0049] Figure 21 This is a cross-sectional view of the support device according to the second embodiment of this application, with the locking mechanism and the second folding mechanism in a locked state.

[0050] Figure 22 This is a cross-sectional view of the support device according to the second embodiment of this application, with the locking mechanism and the second folding mechanism in the unlocked state.

[0051] Figure 23 This is a schematic diagram of the structure of the support device according to the second embodiment of this application, when the locking mechanism and the second folding mechanism are in the unlocked state and the second housing and the third housing are in the fully folded state.

[0052] Explanation of key component symbols:

[0053] Electronic devices 100

[0054] Support devices 110, 110', 130

[0055] First shell 10, 10'

[0056] Unlock Item 11

[0057] Second shell 20, 20'

[0058] Third shell 30, 30'

[0059] First folding mechanism 40, 40'

[0060] Second folding mechanism 50, 50', 70

[0061] Area I

[0062] Shaft cover 51, 71

[0063] First folding component C1

[0064] Second folding component C2

[0065] Third fold component C3

[0066] Fourth fold component C4

[0067] Brackets 52, 72

[0068] First connectors 53, 73

[0069] 53R of space

[0070] First opening 53A, 73A

[0071] First receiving holes 53A1, 73A1

[0072] First limiting holes 53A2, 73A2

[0073] Second opening 53B, 73B

[0074] Second limiting hole 73H

[0075] First chute 53L

[0076] Second connectors 54, 74

[0077] Second chute 54L

[0078] First arm swing 55, 75

[0079] First rotating end 551, 751

[0080] First sliding ends 552, 752

[0081] First locking section 55C, 75C

[0082] Second swing arm 56, 76

[0083] Second rotating end 561

[0084] Second sliding end 562

[0085] Third swing arm 57, 77

[0086] Fourth swing arm 58, 78

[0087] Damping components 59, 79

[0088] Locking mechanisms 60, 80

[0089] Locking parts 61, 81

[0090] Second locking parts 61A, 81A

[0091] Main body 81B

[0092] Middle section 61B

[0093] Hinged part 61C

[0094] Second guide section 81C

[0095] Second limiting part 81D

[0096] Reset components 62, 82

[0097] First end 621, 821

[0098] Second end 622, 822

[0099] Pressing parts 63, 83

[0100] Trigger unit 63A, 83A

[0101] First limiting part 63B, 83B

[0102] Slider 64

[0103] Contact portion 64A

[0104] First guide section 64B

[0105] Connector 64C

[0106] Sliding axis 64D

[0107] Pin 65

[0108] Flexible display screen 120

[0109] First mounting hole H1

[0110] Second mounting hole H2

[0111] Third mounting hole H3

[0112] Motion component M

[0113] Centerline L

[0114] First inclined plane S1

[0115] Second inclined plane S2

[0116] Third inclined plane S3

[0117] First direction X

[0118] Second direction Y

[0119] Third direction Z Detailed Implementation

[0120] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting this application.

[0121] In the description of the embodiments of this application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the implementation methods of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0122] In the description of the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0123] In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0124] In the description of the embodiments of this application, unless otherwise stated, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections, electrical connections, or connections that can communicate with each other; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components or interactive relationships between two components.

[0125] Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0126] Figure 1 Figures (a), (b), and (c) are side views of the support device 110' in the fully unfolded, partially folded, and fully folded states, respectively, in the related art.

[0127] like Figure 1 As shown in Figure (a), the support device 110' includes a first housing 10', a second housing 20', a third housing 30', a first folding mechanism 40', and a second folding mechanism 50'. The first folding mechanism 40' is connected between the first housing 10' and the second housing 20', and the first housing 10' and the second housing 20' can be relatively unfolded or folded relative to each other through the first folding mechanism 40'. The second folding mechanism 50' is connected between the second housing 20' and the third housing 30', and the second housing 20' and the third housing 30' can be relatively unfolded or folded relative to each other through the second folding mechanism 50'.

[0128] This support device 110' is used in a foldable electronic device. A first housing 10', a second housing 20', a third housing 30', a first folding mechanism 40', and a second folding mechanism 50' together support the flexible display screen of the electronic device. During relative folding or unfolding, the first housing 10' and the second housing 20' can cause the flexible display screen to bend or unfold. Similarly, during relative folding or unfolding, the second housing 20' and the third housing 30' can cause the flexible display screen to bend or unfold.

[0129] like Figure 1 As shown in Figures (a), (b), and (c), during the process of the support device 110' switching from a fully unfolded state, through a partially folded state, to a fully folded state (or a fully closed state), the normal opening and closing sequence of the support device 110' is as follows: first, the first housing 10' and the second housing 20' are folded relative to each other through the first folding mechanism 40', and then the third housing 30' and the second housing 20' are folded relative to each other through the second folding mechanism 50'. When the support device 110' is in the fully folded state, the third housing 30', the first housing 10', and the second housing 20' are stacked sequentially.

[0130] like Figure 1 As shown in Figure (d), since the thickness of the first folding mechanism 40' is less than the thickness of the second folding mechanism 50', if the third housing 30' and the second housing 20' are mistakenly folded relative to each other in the direction of the arrow before the first housing 10' and the second housing 20' are folded relative to each other, then without the support of the first housing 10' between the second housing 20' and the third housing 30', the second folding mechanism 50' will have difficulty supporting the third housing 30' on its own, and the second folding mechanism 50' will be subjected to excessive pressing force and will be easily damaged.

[0131] Furthermore, if the third housing 30' and the second housing 20' are folded first in the direction of the arrow, and then the first housing 10' and the second housing 20' are folded, the end of the third housing 30' in region I will also squeeze and collide with the first housing 10' and the flexible display screen it carries, which will easily damage the first folding mechanism 40' and the flexible display screen in region I.

[0132] Furthermore, due to the dimensional limitations among the various components such as the first folding mechanism 40', the second folding mechanism 50', the first housing 10', the second housing 20', and the third housing 30', if the second housing 20' and the third housing 30' are folded first, and then the first housing 10' and the second housing 20' are folded, the first housing 10' may not be able to be folded to the side of the third housing 30' that is away from the second housing 20'. This results in an unstable folding state of the electronic device using the support device 110', making it prone to damage.

[0133] It should be noted that the above explanation uses a support device applied to a three-fold and inward-folding electronic device as an example. Outward-folding devices, S-shaped devices, or other multi-folding devices may also have size limitations or other issues, and need to meet the requirements of orderly opening and closing.

[0134] Therefore, it is necessary to provide a support device to enable the orderly opening and closing of electronic devices with three or more fold structures. The support device and electronic device according to embodiments of this application are described in detail below with reference to the accompanying drawings.

[0135] Figure 2 This is a schematic diagram of the structure of an electronic device according to the first embodiment of this application. Figure 2 The example described uses a tri-fold mobile phone as an example. In other embodiments, the electronic device can be, but is not limited to, a tablet computer, wearable device, or other foldable electronic product. Furthermore, in other embodiments, the electronic device can be a foldable device with more than three folds.

[0136] like Figure 2 As shown, the electronic device 100 includes a support device 110 and a flexible display screen 120. The support device 110 supports the flexible display screen 120. The flexible display screen 120 is used for image display. The flexible display screen 120 can be, but is not limited to, an organic light-emitting diode (OLED) screen, a micro-organic light-emitting diode (microorganic light-emitting diode) screen, or a quantum dot light-emitting diode (QLED) screen.

[0137] Specifically, the support device 110 includes a first housing 10, a second housing 20, a third housing 30, a first folding mechanism 40, a second folding mechanism 50, and a locking mechanism 60. The first folding mechanism 40 is connected between the first housing 10 and the second housing 20, and the first housing 10 and the second housing 20 can be relatively unfolded or folded relative to each other through the first folding mechanism 40. The second folding mechanism 50 is connected between the second housing 20 and the third housing 30, and the second housing 20 and the third housing 30 can be relatively unfolded or folded relative to each other through the second folding mechanism 50.

[0138] The flexible display screen 120 is located on the same side as the first housing 10, the second housing 20, the third housing 30, the first folding mechanism 40, and the second folding mechanism 50. The flexible display screen 120 is connected to the first housing 10, the second housing 20, and the third housing 30. The first housing 10, the second housing 20, the third housing 30, the first folding mechanism 40, and the second folding mechanism 50 together support the flexible display screen 120. During relative folding or unfolding, the first housing 10 and the second housing 20 can cause the flexible display screen 120 to bend or unfold. During relative folding or unfolding, the second housing 20 and the third housing 30 can also cause the flexible display screen 120 to bend or unfold.

[0139] In this embodiment, both the first folding mechanism 40 and the second folding mechanism 50 are inward folding mechanisms. That is, when the first housing 10 and the second housing 20 are folded relative to each other, both the first housing 10 and the second housing 20 are folded toward the side where the flexible display screen 120 is located. When the second housing 20 and the third housing 30 are folded relative to each other, both the second housing 20 and the third housing 30 are folded toward the side where the flexible display screen 120 is located.

[0140] During the switching process from fully unfolded to fully folded state, the correct opening and closing sequence of the support device 110 is as follows: first, the first shell 10 and the second shell 20 are folded relative to each other through the first folding mechanism 40, and then the second shell 20 and the third shell 30 are folded relative to each other through the second folding mechanism 50, so that when the support device 110 is in the fully folded state, the third shell 30, the first shell 10 and the second shell 20 are stacked in sequence.

[0141] In this electronic device 100, the first housing 10, the second housing 20, and the third housing 30 can be folded or unfolded relative to each other through the arrangement of the first folding mechanism 40 and the second folding mechanism 50. In the fully folded state, the first housing 10, the second housing 20, and the third housing 30 can be compactly stacked together, greatly reducing the size of the electronic device 100 and improving its portability. This is beneficial for the use of the electronic device 100 in application scenarios that require frequent movement or in application scenarios with limited space.

[0142] In other embodiments, the support device 110 may be S-shaped folding, that is, in the first folding mechanism 40 and the second folding mechanism 50, one is an inward folding folding mechanism and the other is an outward folding folding mechanism.

[0143] For example, the first folding mechanism 40 is an inward folding mechanism, and the second folding mechanism 50 is an outward folding mechanism. During the switching process from the fully unfolded state to the fully folded state, the correct opening and closing sequence of the support device 110 is as follows: first, fold both the first housing 10 and the second housing 20 towards the side of the flexible display screen 120; then, fold both the second housing 20 and the third housing 30 towards the side opposite to the flexible display screen 120. This ensures that when the support device 110 is fully folded, the first housing 10, the second housing 20, and the third housing 30 are stacked sequentially. If the user incorrectly folds the second housing 20 and the third housing 30 towards the side closer to the flexible display screen 120 first, it may damage the second folding mechanism 50.

[0144] For example, the first folding mechanism 40 is an outward folding mechanism, and the second folding mechanism 50 is an inward folding mechanism. During the switching process from the fully unfolded state to the fully folded state, the correct opening and closing sequence of the support device 110 is as follows: first, fold both the first housing 10 and the second housing 20 towards the side opposite to the flexible display screen 120; then, fold both the second housing 20 and the third housing 30 towards the side closer to the flexible display screen 120, so that when the support device 110 is fully folded, the third housing 30, the second housing 20, and the first housing 10 are stacked sequentially. If the user incorrectly folds the second housing 20 and the third housing 30 towards the side opposite to the flexible display screen 120 first, it may cause damage to the second folding mechanism 50.

[0145] In this embodiment of the application, in order to achieve orderly opening and closing of the electronic device 100, the support device 110 further includes a locking mechanism 60. The locking mechanism 60 is disposed in the second folding mechanism 50 so that the locking mechanism 60 occupies the space of the second folding mechanism 50, but does not occupy the space in the second housing 20 used to accommodate other devices.

[0146] Specifically, when the first housing 10 and the second housing 20 are in the unfolded state, and the second housing 20 and the third housing 30 are in the unfolded state, the locking mechanism 60 is used to lock the second folding mechanism 50 to prevent the second housing 20 and the third housing 30 from folding relative to each other through the second folding mechanism 50. This helps to prevent incorrect folding and avoid damage to the first folding mechanism 40, the second folding mechanism 50 or the flexible display screen 120, thereby improving the service life of the electronic device 100.

[0147] When the first housing 10 and the second housing 20 are in a fully folded state, the locking mechanism 60 is used to release the lock on the second folding mechanism 50, allowing the second housing 20 and the third housing 30 to unfold or fold relative to each other via the second folding mechanism 50. Since the locking mechanism 60 automatically releases the lock on the second folding mechanism 50 when the first housing 10 and the second housing 20 are in a fully folded state, allowing the second housing 20 and the third housing 30 to fold, the number of user operation steps is reduced, making the transition of the electronic device 100 from a partially folded state to a fully folded state much simpler.

[0148] like Figure 3 As shown, when the support device 110 (or electronic device 100) is fully extended, the first housing 10, the first folding mechanism 40, the second housing 20, the second folding mechanism 50, and the third housing 30 are arranged in sequence. Each of the first folding mechanism 40 and the second folding mechanism 50 is generally elongated.

[0149] For ease of description, when the support device 110 (or electronic device 100) is fully deployed, the direction in which the first housing 10, the second housing 20, and the third housing 30 are arranged is defined as the first direction X, and the direction in which the first housing 10 points to the third housing 30 is the positive direction of the first direction X.

[0150] The length direction of the first folding mechanism 40 or the second folding mechanism 50 is defined as the second direction Y.

[0151] When the electronic device 100 is in its fully extended state, the stacking direction of the flexible display screen 120 and the support device 110 is defined as the third direction Z, and the direction in which the support device 110 points towards the flexible display screen 120 is the positive direction of the third direction Z. The first direction X, the second direction Y, and the third direction Z intersect each other.

[0152] In this embodiment, the first direction X, the second direction Y, and the third direction Z are approximately perpendicular to each other.

[0153] Furthermore, the first direction X, the second direction Y, and the third direction Z are referred to as the left-right direction, the front-back direction, and the up-down direction, respectively. The direction from the negative direction of the first direction X to the positive direction of the first direction X is called the left-to-right direction, and the direction from the negative direction of the third direction Z to the positive direction of the third direction Z is called the bottom-to-top direction.

[0154] An unlocking member 11 is provided on the first housing 10. Specifically, the unlocking member 11 is located at the end of the first housing 10 away from the second housing 20, and on the side of the first housing 10 that supports the flexible display screen 120. During the process of folding the first housing 10 and the second housing 20 relative to each other to a fully folded state, the unlocking member 11 gradually approaches the locking mechanism 60. After the first housing 10 and the second housing 20 are closed, the unlocking member 11 can act on the locking mechanism 60 and cause the locking mechanism 60 to release the second folding mechanism 50 from its lock.

[0155] In some embodiments, the support device 110 includes at least two locking mechanisms 60, which are spaced apart within the second folding mechanism 50. Correspondingly, there are at least two unlocking elements 11, which are spaced apart within the first housing 10, with each unlocking element 11 corresponding to one locking mechanism 60.

[0156] By incorporating multiple locking mechanisms 60 and unlocking components 11, a more uniform and stable locking effect can be achieved. Compared to a single locking point, multiple spaced locking mechanisms 60 can better distribute load and stress, reducing structural deformation or instability that may result from uneven stress at a single point during use. Moreover, through the coordinated action of multiple locking mechanisms 60, even if one locking mechanism 60 fails unexpectedly, the others can still provide the necessary locking function, thereby ensuring the safety of the device during use. This redundant design improves the reliability of the electronic device 100 and reduces safety hazards caused by locking failure.

[0157] Figure 3 In the embodiment shown, there are two locking mechanisms 60 and two unlocking components 11. The two locking mechanisms 60 are spaced apart along the second direction Y in the second folding mechanism 50, and the two unlocking components 11 are spaced apart along the second direction Y in the first housing 10.

[0158] More specifically, two locking mechanisms 60 are symmetrically arranged in the second folding mechanism 50. This symmetrical arrangement of the locking mechanisms 60 ensures that the second folding mechanism 50 experiences more even force distribution during use of the electronic device 100, reducing tilting or swaying caused by eccentric loads and improving the overall stability and balance of the electronic device 100. Furthermore, the symmetrical arrangement of the locking mechanisms 60 provides a consistent operating feel; regardless of the direction from which the user operates the device, the required force and feedback are similar. This consistency enhances user comfort and satisfaction.

[0159] The structure of the second folding mechanism 50 and the locking mechanism 60 is described in detail below.

[0160] like Figure 4As shown, the second folding mechanism 50 includes a moving member M. During the relative folding or unfolding process of the second folding mechanism 50, the moving member M is capable of movement. The moving member M can be a structure in which the second folding mechanism 50 moves during the folding or unfolding process; it can be, but is not limited to, structural members that serve a connecting function. The locking mechanism 60 is used to prevent the movement of the moving member M in the second folding mechanism 50 to lock the second folding mechanism 50, or to release the lock on the moving member M in the second folding mechanism 50 to unlock the second folding mechanism 50.

[0161] Specifically, the second folding mechanism 50 includes a shaft cover 51, a first folding assembly C1, and a second folding assembly C2. The shaft cover 51 extends in a strip shape along the second direction Y. In the electronic device 100, the shaft cover 51 is located between the second housing 20 and the third housing 30. The first folding assembly C1 and the second folding assembly C2 are mounted on the side of the shaft cover 51 facing the flexible display screen 120 to drive the flexible display screen 120 to fold or unfold.

[0162] Specifically, the first folding assembly C1 and the second folding assembly C2 are spaced apart along the second direction Y and are arranged symmetrically. Each of the first folding assembly C1 and the second folding assembly C2 is provided with a locking mechanism 60. The locking mechanisms 60 in the first folding assembly C1 and the second folding assembly C2 are also arranged symmetrically.

[0163] In other embodiments, the number and distribution of folding components in the second folding mechanism 50 and the number and distribution of locking mechanisms 60 are not limited to... Figure 4 As shown.

[0164] The following describes the specific structure and connection relationship of the first folding component C1 and its corresponding locking mechanism 60 in the second folding mechanism 50. The structure of the second folding component C2 is similar to that of the first folding component C1. The structure and connection relationship of the second folding component C2 and its corresponding locking mechanism 60 can be found in the description of the first folding component C1 and its corresponding locking mechanism 60, and will not be repeated below.

[0165] The first folding assembly C1 includes a bracket 52, a first connector 53, a second connector 54, a first swing arm 55, a second swing arm 56, a third swing arm 57, a fourth swing arm 58, and a damping assembly 59.

[0166] The bracket 52 is located on the side of the shaft cover 51 facing the flexible display screen 120 and is detachably connected to the shaft cover 51. The bracket 52 has a center line L parallel to the second direction Y.

[0167] The first connector 53 and the second connector 54 are located on opposite sides of the center line L of the bracket 52 along the first direction X. The first connector 53 is fixedly connected to the second housing 20, and the second connector 54 is fixedly connected to the third housing 30.

[0168] The first swing arm 55 and the second swing arm 56 are located on opposite sides of the center line L of the support 52 along the first direction X. The first swing arm 55 and the second swing arm 56 can be folded and unfolded relative to each other.

[0169] Specifically, the first swing arm 55 includes a first rotating end 551 and a first sliding end 552. The first rotating end 551 is rotatably connected to the bracket 52, and the first sliding end 552 is slidably connected to the first connecting member 53.

[0170] The second swing arm 56 includes a second rotating end 561 and a second sliding end 562. The second rotating end 561 is rotatably connected to the bracket 52, and the second sliding end 562 is slidably connected to the second connecting member 54.

[0171] More specifically, the first rotating end 551 of the first swing arm 55 has a helical end face, and the bracket 52 has another helical end face that is adapted to the first rotating end 551. The helical end face of the first rotating end 551 of the first swing arm 55 and the helical end face of the bracket 52 are rotatably engaged to realize the rotational connection between the first swing arm 55 and the second housing 20.

[0172] The first connector 53 is provided with a first groove 53L. The first sliding end 552 of the first swing arm 55 is at least partially located in the first groove 53L, and the first sliding end 552 of the first swing arm 55 can slide relative to the first connector 53 (or the second housing 20) in the second direction Y within the first groove 53L.

[0173] Similarly, the second rotating end 561 of the second swing arm 56 and the second connecting member 54 are rotatably engaged by a helical end face to achieve a rotatable connection between the second swing arm 56 and the third housing 30. The second connecting member 54 is provided with a second sliding groove 54L. The second sliding end 562 of the second swing arm 56 is at least partially located within the second sliding groove 54L, and the second sliding end 562 of the second swing arm 56 can slide relative to the second connecting member 54 (or the third housing 30) in the second direction Y within the second sliding groove 54L.

[0174] The third swing arm 57 and the fourth swing arm 58 are located on opposite sides of the center of the support 52 along the first direction X. The third swing arm 57 and the fourth swing arm 58 can be folded and unfolded relative to each other.

[0175] Specifically, one end of the third swing arm 57 is fixedly connected to the first connecting member 53, and the other end is rotatably connected to the bracket 52. One end of the fourth swing arm 58 is fixedly connected to the first connecting member 53, and the other end is rotatably connected to the bracket 52. During the rotation of the third swing arm 57 and the fourth swing arm 58 relative to the bracket 52, they can drive the first swing arm 55 and the second swing arm 56 to rotate synchronously. Therefore, the third swing arm 57 and the fourth swing arm 58 can also be called the main swing arms, and the first swing arm 55 and the second swing arm 56 can also be called the auxiliary swing arms.

[0176] In this embodiment, the third swing arm 57 and the first connecting member 53 are integrally formed, and the fourth swing arm 58 and the second connecting member 54 are integrally formed.

[0177] In other embodiments, the third swing arm 57 and the first connecting member 53 can be separately configured, and the fourth swing arm 58 and the second connecting member 54 can be separately configured.

[0178] In this embodiment, there are two third swing arms 57 and two fourth swing arms 58. The two third swing arms 57 are spaced apart along the second direction Y, and the two fourth swing arms 58 are spaced apart along the second direction Y. Each third swing arm 57 corresponds to one fourth swing arm 58. The first swing arm 55 is located between the two third swing arms 57. The second swing arm 56 is located between the two fourth swing arms 58. In other embodiments, the number and arrangement of the third swing arms 57 and the fourth swing arms 58 are not limited to those described above.

[0179] In this embodiment, any one of the first swing arm 55, the second swing arm 56, the third swing arm 57, and the fourth swing arm 58 is rotatably connected to the support 52 via a virtual axis. In other embodiments, any one of the first swing arm 55, the second swing arm 56, the third swing arm 57, and the fourth swing arm 58 is rotatably connected to the support 52 via a physical pivot.

[0180] The damping component 59 is located between the first swing arm 55 and the third swing arm 57, and between the second swing arm 56 and the fourth swing arm 58. The damping component 59 is used to generate damping force to improve the feel of the electronic device 100 when opening and closing. In this embodiment, the specific structure of the damping component 59 is not limited.

[0181] like Figure 5 As shown, the first connector 53 has a receiving space 53R. The receiving space 53R is located approximately at the midpoint of the first connector 53 along the third direction Z. Some components of the locking mechanism 60 are housed within the receiving space 53R to make the support device 110 more compact.

[0182] The moving part M in the second folding mechanism 50 includes a first swing arm 55. The first sliding end 552 of the first swing arm 55 includes a first locking part 55C. The locking mechanism 60 includes a locking member 61 and a resetting member 62. After the locking member 61 is installed on the first connecting member 53, it is at least partially received within the receiving space 53R.

[0183] The locking member 61 includes a second locking part 61A, which is adapted to the first locking part 55C to lock or unlock the locking member 61 to the first sliding end 552 of the first swing arm 55.

[0184] In this embodiment, the first locking part 55C is a locking groove extending along the first direction X, and the second locking part 61A is a latch. The first sliding end 552 can slide relative to the first connecting member 53 along the second direction Y, that is, the extending direction of the locking groove is perpendicular to the sliding direction of the first sliding end 552. The second locking part 61A can partially extend into the first locking part 55C, thereby locking the second locking part 61A to restrict the sliding of the first sliding end 552 of the first swing arm 55 along the second direction Y, thereby achieving the locking of the second folding mechanism 50.

[0185] In other embodiments, the extending direction of the locking groove intersects but is not perpendicular to the sliding direction of the first sliding end 552, and it is sufficient to limit the sliding of the first swing arm 55.

[0186] In other embodiments, the first locking part 55C is a latch, and the second locking part 61A is a locking groove extending along the first direction X. The first locking part 55C can partially extend into the second locking part 61A to lock the second folding mechanism 50, or move out of the second locking part 61A to unlock the second folding mechanism 50.

[0187] In this embodiment, the locking member 61 directly locks or unlocks the first swing arm 55. Compared with locking other moving parts M in the second folding mechanism 50, the locking effect is better and the locking strength is better.

[0188] The reset member 62 is housed within the receiving space 53R and is indirectly connected to the locking member 61. During the process of switching from a fully folded state to an unfolded state, the reset member 62 can drive the locking member 61 to move towards the moving member M, so that the locking member 61 is reset and locked to the moving member M.

[0189] The locking mechanism 60 also includes a pressing member 63. The pressing member 63 is housed within the receiving space 53R, is drively connected to the locking member 61, and is exposed from the first connecting member 53 (shown in...). Figure 4 middle).

[0190] The position of the pressing member 63 exposed by the first connecting member 53 can be subjected to external force (such as the action of the unlocking member 11 on the first housing 10), thereby indirectly driving the locking member 61 to move away from the moving member M, so that the locking member 61 is unlocked from the moving member M.

[0191] The locking mechanism 60 also includes a slider 64 and a pin 65. The slider 64 is housed within the receiving space 53R, located below the pressing member 63, and slidably connected to the pressing member 63. The slider 64 is capable of sliding relative to the first connecting member 53 along the first direction X under the action of the pressing member 63.

[0192] The locking member 61 is hinged to the sliding member 64 and rotatably connected to the first connecting member 53 via a pin 65. The locking member 61 can rotate around the pin 65 under the drive of the sliding member 64 to lock or unlock with the moving member M.

[0193] In this embodiment, the pressing member 63 includes a first inclined surface S1 facing the sliding member 64. The sliding member 64 includes a second inclined surface S2 facing the pressing member 63. The second inclined surface S2 is adapted to the first inclined surface S1 so that the pressing member 63 can slide relative to the sliding member 64 under the action of an external force in the third direction Z, thereby causing the sliding member 64 to press the reset member 62, and at the same time drive the locking member 61 to rotate around the pin 65, so that the second locking part 61A of the locking member 61 moves out of the first locking part 55C of the first swing arm 55, and unlocks the first swing arm 55; during the locking process of the locking member 61 and the moving member M, the sliding member 64 pushes upward against the pressing member 63 under the action of the reset member 62, and at the same time drives the locking member 61 to rotate around the pin 65, so that the second locking part 61A of the locking member 61 extends into the first locking part 55C of the first swing arm 55, locking the first swing arm 55.

[0194] The beveled design between the pressing member 63 and the sliding member 64 allows the pressing member 63 to slide smoothly during the unlocking process, further improving the efficiency and reliability of locking and unlocking. The design of the reset member 62 ensures that the sliding member 64 automatically resets after unlocking, reducing user steps and improving ease of use.

[0195] Specifically, the first connector 53 has a first opening 53A and a second opening 53B. The first opening 53A communicates with the receiving space 53R and faces the positive direction of the third direction Z. The second opening 53B communicates with the receiving space 53R and faces the negative direction of the first direction X. The reset member 62, the sliding member 64, and the locking member 61 can be installed onto the first connector 53 at the second opening 53B, and the pressing member 63 can be installed onto the first connector 53 at the first opening 53A.

[0196] The pressing member 63 includes a trigger portion 63A and a first limiting portion 63B connected to the trigger portion 63A. The trigger portion 63A is generally wedge-shaped. A first inclined surface S1 is formed on the trigger portion 63A. The top surface of the trigger portion 63A facing the third direction Z is generally rectangular.

[0197] The first limiting portion 63B is connected to the trigger portion 63A in the negative direction of the first direction X. Along the second direction Y, the opposite ends of the first limiting portion 63B extend beyond the trigger portion 63A. The top surface of the first limiting portion 63B facing the positive direction of the third direction Z is approximately rectangular.

[0198] The receiving space 53R has a first receiving hole 53A1 and a first limiting hole 53A2 respectively connected at the corresponding first opening 53A. The shape and size of the first receiving hole 53A1 at the first opening 53A are adapted to the shape and size of the top surface of the trigger part 63A. The top surface of the trigger part 63A is exposed at the first receiving hole 53A1. The top surface of the trigger part 63A is the surface that directly contacts and receives force from the pressing member 63 and the unlocking member 11 when the first housing 10 and the second housing 20 are closed.

[0199] The shape and size of the first limiting hole 53A2 at the first opening 53A are adapted to the shape and size of the top surface of the first limiting part 63B. When the pressing member 63 is subjected to an external force in the third direction Z (such as the pressure of the unlocking member 11) and moves up and down relative to the first connecting member 53, the first limiting hole 53A2 cooperates with the first limiting part 63B to restrict the movement of the pressing member 63 in a direction different from the third direction Z. This helps to prevent the locking mechanism 60 from failing due to misoperation and improves the movement accuracy of the pressing member 63 during the unlocking process.

[0200] In this embodiment, the wall of the first limiting hole 53A2 can at least restrict the movement of the pressing member 63 along the first direction X and the second direction Y.

[0201] The slider 64 includes an abutment portion 64A, a first guide portion 64B, a connecting portion 64C, and a sliding shaft 64D. The abutment portion 64A is located below the pressing member 63. The abutment portion 64A is the part that directly contacts the pressing member 63. The abutment portion 64A is generally wedge-shaped. A second inclined surface S2 is formed on the abutment portion 64A. In this embodiment, each surface of the abutment portion 64A is generally triangular.

[0202] The first guide portion 64B is connected to the abutment portion 64A in the positive direction of the first direction X. The first guide portion 64B is generally cylindrical. The reset member 62 is sleeved on the first guide portion 64B of the slider 64, and the first guide portion 64B is used to support and guide the reset member 62.

[0203] The connecting portion 64C is connected to the abutting portion 64A in the positive direction of the second direction Y. The connecting portion 64C is generally plate-shaped. The sliding shaft 64D is connected to the connecting portion 64C and protrudes in the positive direction of the third direction Z relative to the connecting portion 64C. The sliding shaft 64D is used for hinged with the locking member 61.

[0204] The reset member 62 includes a first end 621 and a second end 622. The first end 621 of the reset member 62 is connected to the abutment portion 64A of the slider 64, and the second end 622 is used to abut against the inner wall of the receiving space 53R formed by the first connecting member 53. When the locking member 61 and the moving member M are locked, the reset member 62 is compressed by the slider 64. During the unlocking process of the locking member 61 and the moving member M, the reset member 62 pushes the slider 64 to move in the negative direction of the first direction X.

[0205] In this embodiment, the reset member 62 is a spring. In other embodiments, the reset member 62 may be a spring sheet, an elastic pad, or other elastic structure.

[0206] In addition to the second locking part 61A, the locking member 61 also includes a middle part 61B and a hinge part 61C. The middle part 61B connects the hinge part 61C and the second locking part 61A. The middle part 61B has a first mounting hole H1, and the first connecting member 53 has a second mounting hole H2. A pin 65 passes through the first mounting hole H1 and the second mounting hole H2 to connect the locking member 61 to the first connecting member 53. The hinge part 61C has a third mounting hole H3. A sliding shaft 64D passes through the third mounting hole H3 and is hinged to the hinge part 61C.

[0207] In other embodiments, the pin 65 can be omitted, the sliding shaft 64D of the slider 64 can be changed to a rotation shaft, and the hinge portion 61C of the locking member 61 is rotatably connected to the slider 64 via the rotation shaft. Under the action of the pressing member 63, the slider 64 can drive the hinge portion 61C of the locking member 61 to rotate around the rotation shaft, and allow the middle portion 61B of the locking member 61 to slide within the receiving space 53R, thereby driving the second locking portion 61A to unlock or lock the first locking portion 55C.

[0208] like Figure 6 As shown, when the locking mechanism 60 and the second folding mechanism 50 are in the locked state, the second locking part 61A of the locking member 61 extends into the first locking part 55C of the first sliding end 552 of the first swing arm 55, thereby restricting the movement of the first sliding end 552 of the first swing arm 55 along the second direction Y, thereby locking the second folding mechanism 50 and preventing the second housing 20 and the third housing 30 from folding relative to each other.

[0209] See also Figure 6 and Figure 7It can be seen that during the transition from the locked state to the unlocked state between the locking mechanism 60 and the second folding mechanism 50, the sliding member 64 moves relative to the pressing member 63 in the positive direction of the first direction X. The sliding member 64 presses the reset member 62 and drives the hinge end of the locking member 61 to move together in the positive direction of the first direction X, so that the locking member 61 rotates around the pin 65, and the second locking part 61A swings away from the first swing arm 55 and moves out of the first locking part 55C of the first sliding end 552 of the first swing arm 55. The locking member 61 does not interfere with the movement of the first sliding end 552 of the first swing arm 55, and the first sliding end 552 of the first swing arm 55 can slide normally relative to the first connecting member 53 in the second direction Y, thereby unlocking the second folding mechanism 50, so that the second housing 20 and the third housing 30 can be folded relative to each other.

[0210] like Figure 8 As shown, after the second folding mechanism 50 is unlocked, the second locking part 61A of the locking member 61 remains outside the first locking part 55C of the first swing arm 55. The locking member 61 avoids the sliding direction (i.e. the second direction Y) of the first sliding end 552 of the first swing arm 55, so that during the process of the second housing 20 and the third housing 30 changing from the unfolded state to the fully folded state, the locking member 61 will not affect the movement of the first sliding end 552 relative to the first connecting member 53.

[0211] The locking and unlocking process of the locking mechanism 60 and the second folding mechanism 50 is described below in conjunction with the specific states of the first housing 10, the second housing 20 and the third housing 30.

[0212] Specifically, when the first shell 10 and the second shell 20 are in the deployed state, and when the second shell 20 and the third shell 30 are in the deployed state (see reference...), Figure 3 The unlocking element 11 on the first housing 10 does not act on the pressing element 63 on the locking mechanism 60. The locking mechanism 60 and the second folding mechanism 50 are in a state of... Figure 6 The locked state is shown.

[0213] like Figure 9 and Figure 10 As shown, the unlocking member 11 is a protrusion on the first housing 10, and the protrusion is located at the end of the first housing 10 opposite to the first folding mechanism 40. During the process of the first housing 10 and the second housing 20 switching from the unfolded state to the fully folded state when the second housing 20 and the third housing 30 are in the unfolded state, the protrusion gradually approaches the second folding mechanism 50.

[0214] The first folding mechanism 40 may include one or more pairs of swing arms. Through the movement of the swing arms in the first folding mechanism 40, the first folding mechanism 40 is deformed, and further, the first housing 10 and the second housing 20 are transitioned from the unfolded state to the fully folded state.

[0215] As Figure 11 shown, a part of the pressing member 63 is located in the accommodation space 53R and is exposed from the first connecting member 53. Both the sliding member 64 and the reset member 62 are completely located in the accommodation space 53R. The first inclined surface S1 of the pressing member 63 abuts against the second inclined surface S2 of the sliding member 64. The first end 621 of the reset member 62 is connected to the abutting portion 64A, and the second end 622 abuts against the inner wall of the first connecting member 53 that forms the accommodation space 53R. During the process of the first housing 10 and the second housing 20 being switched from the unfolded state to the fully folded state, the unlocking member 11 on the first housing 10 gradually approaches the pressing member 63.

[0216] As Figure 12 and Figure 13 shown, when the second housing 20 and the third housing 30 are in the unfolded state and the first housing 10 and the second housing 20 are in the fully folded state, the unlocking member 11 acts on the locking mechanism 60.

[0217] As Figure 14 shown, when the first housing 10 and the second housing 20 are in the fully folded state, in the thickness direction of the support device 110, the projection of the unlocking member 11 (or the boss) and the projection of the pressing member 63 at least partially overlap. The unlocking member 11 directly contacts the triggering portion 63A of the pressing member 63 of the locking mechanism 60 and applies a downward force to the pressing member 63, causing the pressing member 63 to move negatively in the third direction Z, and applying a positive upward force in the first direction X to the sliding member 64 through the first inclined surface S1 of the pressing member 63 to the second inclined surface S2 of the sliding member 64, so that the sliding member 64 slides positively in the accommodation space 53R relative to the first connecting member 53 in the first direction X and squeezes the reset member 62.

[0218] Refer Figure 7 , during the process of the sliding member 64 sliding positively in the first direction X, it will drive the hinged portion 61C of the locking member 61 to slide positively in the first direction X synchronously, and further cause the locking member 61 to rotate around the pin shaft 65, so that the second locking portion 61A moves out of the locking groove of the first swing arm 55, realizing the unlocking of the second folding mechanism 50. Moreover, since after the first housing 10 and the second housing 20 are closed, the unlocking member 11 of the first housing 10 keeps pressing down the pressing member 63, and the pressing member 63, the sliding member 64 and the reset member 62 remain basically unchanged, so as to keep the locking mechanism 60 and the second folding mechanism 50 in the unlocked state. Refer Figure 8During the process of the second housing 20 and the third housing 30 unfolding to closing, the locking member 61 will not interfere with the movement of the moving member M in the second folding mechanism 50.

[0219] like Figure 15 and Figure 16 As shown, when the first housing 10 and the second housing 20 are in a fully folded state, and the second housing 20 and the third housing 30 are in a fully folded state, the third housing 30, the first housing 10 and the second housing 20 are stacked sequentially along the third direction Z.

[0220] like Figure 14 and Figure 17 As shown, when the first housing 10 and the second housing 20 are in a fully folded state, since the unlocking member 11 of the first housing 10 keeps pressing down the pressing member 63, the relative positions of the pressing member 63, the sliding member 64 and the resetting member 62 remain basically unchanged, so that the locking mechanism 60 remains in the unlocked state with the second folding mechanism 50.

[0221] Understandably, when the third housing 30 and the second housing 20 are in the unfolded state, during the process of the second housing 20 moving from a fully folded state to an unfolded state relative to the first housing 10, the reset member 62 pushes the sliding member 64 to slide along the negative direction of the first direction X, causing the sliding member 64 to abut against the pressing member 63 and move along the positive direction of the third direction Z. At the same time, the sliding member 64 drives the hinge portion 61C of the locking member 61 to slide along the negative direction of the first direction X, causing the second locking portion 61A of the locking member 61 to rotate around the pin 65 and extend into the first locking portion 55C of the first swing arm 55, achieving a self-locking state with the first swing arm 55.

[0222] In other embodiments, the pressing member 63 may be omitted, and the unlocking member 11 is a boss on the first housing 10, with a first inclined surface S1 formed on the side of the boss facing the sliding member 64. By adapting the first inclined surface S1 on the boss to the second inclined surface S2 on the sliding member 64, the boss directly acts on the sliding member 64 during the closing process of the first housing 10 and the second housing 20, thereby unlocking the sliding member 64 from the moving member M in the second folding mechanism 50.

[0223] Figure 18 This is a schematic diagram of the structure of the second folding mechanism 70 and the locking mechanism 80 in the support device 130 of the second embodiment of this application. Figure 18 As shown, the support device 130 of the second embodiment includes a shaft cover 71, a third folding assembly C3, and a fourth folding assembly C4. The third folding assembly C3 and the fourth folding assembly C4 are spaced apart on the shaft cover 71 along the second direction Y. The structure and function of the shaft cover 71 are the same as in the first embodiment and will not be described again.

[0224] Unlike the support device 110 in the first embodiment, the third folding assembly C3 is provided with a locking mechanism 80, while the fourth folding assembly C4 is not provided with a locking mechanism 80.

[0225] Similar to the first folding assembly C1 in the first embodiment, the third folding assembly C3 includes a bracket 72, a first connector 73, a second connector 74, a first swing arm 75, a second swing arm 76, a third swing arm 77, a fourth swing arm 78, and a damping assembly 79. The first connector 73 includes a first sliding end 572 and a first rotating end 571. The first rotating end 571 is rotatably connected to the bracket 72. The first sliding end 572 is slidably connected to the first connector 73.

[0226] The functions and interconnections of the bracket 72, the first connector 73, the second connector 74, the first swing arm 75, the second swing arm 76, the third swing arm 57, the fourth swing arm 78, and the damping assembly 79 can be partially referred to the first folding assembly C1.

[0227] like Figure 19 As shown, the moving part M in the second folding mechanism 70 is also the first swing arm 75. The first sliding end 572 of the first swing arm 75 includes a first locking part 75C. The locking member 81 includes a second locking part 81A. The first locking part 75C is a locking groove, and the second locking part 81A is a latch.

[0228] The following mainly explains the differences between the third folding component C3 and the first folding component C1.

[0229] In the support device 130 of the second embodiment, the locking mechanism 80 does not include the sliding member 64. The locking member 81 itself exists as a structure that can slide relative to the first connecting member 73, and the locking member 81 is slidably connected to the first connecting member 73.

[0230] The structure of the pressing member 83 is the same as that of the pressing member 63 in the first embodiment, except that the first limiting part 83B is located in the positive direction of the first direction X of the trigger part 83A of the pressing member 83.

[0231] like Figure 20 As shown, the locking member 81 includes a third inclined surface S3 facing the pressing member 83. The third inclined surface S3 is adapted to the first inclined surface S1 so that the pressing member 83, under the action of the unlocking member 11 (or the boss of the first housing 10), drives the locking member 81 to slide relative to the first swing arm 75, thereby unlocking it from the first swing arm 75. The inclined surface design between the locking member 81 and the pressing member 83 ensures that the locking member 81 can move smoothly during the unlocking process, thereby enhancing the smoothness and reliability of unlocking.

[0232] like Figure 21As shown, the first end 821 of the reset member 82 is fixedly connected to the locking member 81, and the second end 822 abuts against the inner wall of the receiving space 73R formed by the first connecting member 73.

[0233] Please refer to the following: Figure 19 , Figure 20 and Figure 21 The locking member 81, excluding the second locking part 81A, also includes a main body part 81B, a second guide part 81C, and a second limiting part 81D. A third inclined surface S3 is formed on the main body part 81B. The main body part 81B extends along the second direction Y. The second locking part 81A, the second guide part 81C, and the second limiting part 81D are all connected to the main body part 81B in the positive direction of the first direction X.

[0234] Specifically, the reset member 82 is sleeved outside the second guide portion 81C. In this embodiment, the second guide portion 81C can be a screw. The second guide portion 81C is threadedly connected to the main body portion 81B. The first end 821 of the reset member 82 is connected to the head of the screw.

[0235] The locking member 81 and the first swing arm 75 are connected by Figure 21 The locked state to Figure 22 During the transition from the unlocked state, the locking member 81 slides relative to the first connector 73 in the negative direction of the first direction X, the second locking part 81A moves out of the first locking part 75C, and the reset member 82 is compressed by the head of the screw.

[0236] The locking member 81 and the first swing arm 75 are connected by Figure 22 unlock status to Figure 21 During the transition from the locked state, the reset member 82 pushes the second guide part 81C to move the entire locking member 81 along the positive direction of the first direction X, so that the second locking part 81A of the locking member 81 extends into the first locking part 75C.

[0237] The design of the reset component 82 ensures that the locking component 81 can automatically reset after unlocking, which improves the automation level of the support device 130 and reduces the user's operational burden.

[0238] like Figure 21 and Figure 22 As shown, the accommodating space 73R also includes a second limiting hole 73H extending along the first direction X. The second limiting part 81D is slidably disposed within the second limiting hole 73H, and the second limiting hole 73H and the second limiting part 81D cooperate to restrict the movement of the locking member 81 in a direction different from the first direction X.

[0239] The design of the second limiting hole 73H and the second limiting part 81D restricts the movement direction of the locking member 81, which helps to ensure that the movement of the locking member 81 is only in the predetermined direction and prevents misoperation.

[0240] In this embodiment, there are two second limiting holes 73H and two limiting portions 81D. The two second limiting holes 73H are spaced apart along the second direction Y. The two second limiting portions 81D are spaced apart along the second direction Y, and are located on opposite sides of the second guide portion 81C. In other embodiments, the number and distribution of the second limiting holes 73H and the second limiting portions 81D are not limited to those described above.

[0241] like Figure 23 As shown, during the process of the second housing 20 and the third housing 30 unfolding to closing, since the first housing 10 and the second housing 20 remain closed, the locking mechanism 80 and the second folding mechanism 70 remain unlocked, and the locking member 81 avoids the sliding direction (i.e. the second direction Y) of the first swing arm 75, without affecting the movement of the first sliding end 572 relative to the first connecting member 73.

[0242] In other embodiments, the pressing member 83 may be omitted, and the first inclined surface S1 is formed on the side of the boss facing the locking member 81. By adapting the first inclined surface S1 on the boss to the third inclined surface S3 on the locking member 81, the boss directly acts on the locking member 81 during the closing of the first housing 10 and the second housing 20, thereby unlocking the locking member 81 from the moving member M in the second folding mechanism 70.

[0243] In other embodiments, the unlocking element 11 is not limited to a boss. For example, the unlocking element 11 is a magnetic element formed on the first housing 10, and the pressing element 83 is another magnetic element. During the closing process of the first housing 10 and the second housing 20, the mutual repulsion between the pressing element 83 and the unlocking element 11 causes the pressing element 83 to directly or indirectly drive the locking element 81 to move away from the moving element M under the action of the magnetic repulsion force of the unlocking element 11, so that the second folding mechanism 70 is unlocked. Alternatively, the pressing element 83 is omitted, the unlocking element 11 is a magnetic element formed on the first housing 10, and the locking element 81 is another magnetic element. During the closing process of the first housing 10 and the second housing 20, the mutual repulsion between the locking element 81 and the unlocking element 11 causes the locking element 81 to move away from the moving element M under the action of the magnetic repulsion force of the unlocking element 11, so that the second folding mechanism 70 is unlocked.

[0244] In summary, in the electronic device of this application embodiment, the locking and unlocking of the second folding mechanism by the locking mechanism in the support device helps to prevent damage to the first folding mechanism, the second folding mechanism and / or the flexible display screen caused by the user folding the second and third shells before the first and second shells are folded, thereby improving the service life and reliability of the electronic device.

[0245] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A support device, characterized in that, It includes a first housing, a second housing, a third housing, a first folding mechanism, a second folding mechanism, and a locking mechanism; The first folding mechanism is connected between the first housing and the second housing, and the first housing and the second housing can be unfolded or folded relative to each other by means of the first folding mechanism; The second folding mechanism is connected between the second housing and the third housing, and the second housing and the third housing can be unfolded or folded relative to each other by means of the second folding mechanism; When the support device is in a fully folded state, the third shell, the first shell, and the second shell are stacked in sequence. The locking mechanism is disposed in the second folding mechanism; When the first housing and the second housing are in the unfolded state, and the second housing and the third housing are in the unfolded state, the locking mechanism locks the second folding mechanism to prevent the second housing and the third housing from folding relative to each other through the second folding mechanism; When the first housing and the second housing are in a fully folded state, the locking mechanism releases the lock on the second folding mechanism, and the second housing and the third housing can be folded open or folded open relative to each other by the second folding mechanism.

2. The support device according to claim 1, characterized in that, The second folding mechanism includes a first connector and a moving component; the first connector is fixedly connected to the second housing, and the moving component is slidably connected to the first connector; The first connector has a receiving space, and the locking mechanism includes a locking member and a resetting member. The locking member is at least partially received within the receiving space, and the resetting member is received within the receiving space and connected to the locking member. When the first housing and the second housing are in the unfolded state, and when the second housing and the third housing are in the unfolded state, the locking member locks with the moving member; The first housing is provided with an unlocking member. During the process of the first housing and the second housing switching from the unfolded state to the fully folded state, the unlocking member drives the locking member to move away from the moving member, so that the locking member releases the locking member from the moving member. During the process of the first housing and the second housing switching from a fully folded state to an unfolded state, the reset member drives the locking member to move towards the moving member so as to reset the locking member.

3. The support device according to claim 2, characterized in that, The unlocking component includes a protrusion on the first housing; the locking mechanism further includes a pressing component, which is housed in the receiving space, is pulsatorically connected to the locking component, and is exposed on the first connecting component. When the first housing and the second housing are in a fully folded state, the projection of the boss and the projection of the pressing member at least partially coincide along the thickness direction of the support device. The second folding mechanism includes a first swing arm, which includes a first rotating end and a first sliding end. The first rotating end is rotatably connected to the second housing, and the first sliding end is slidably connected to the first connecting member. The moving member includes the first swing arm, the first sliding end includes a first locking part, and the locking member includes a second locking part. When the first housing and the second housing are in the unfolded state, and when the second housing and the third housing are in the unfolded state, the first locking part locks with the second locking part. During the process of the first housing and the second housing switching from the unfolded state to the fully folded state, the boss drives the pressing member to move in the direction away from the first housing, so that the pressing member drives the second locking part to move in the direction away from the first locking part, thereby unlocking the first locking part from the second locking part. During the process of switching from a fully folded state to an unfolded state between the first housing and the second housing, the reset member drives the second locking part to move toward the first locking part, so as to lock the first locking part and the second locking part.

4. The support device according to claim 3, characterized in that, One of the first locking part and the second locking part is a locking groove, and the other is a latch; the latch can extend into the locking groove to lock the second folding mechanism, or the latch can move out of the locking groove to release the second folding mechanism.

5. The support device according to claim 3, characterized in that, The accommodating space includes a first limiting hole, and the pressing member includes a first limiting part. The first limiting part is slidably disposed in the first limiting hole. The first limiting hole and the first limiting part cooperate to restrict the movement of the pressing member in a direction different from the thickness direction of the support device.

6. The support device according to any one of claims 3 to 5, characterized in that, The locking mechanism further includes a slider, which is housed within the receiving space and slidably connected to the pressing member; The locking member is hinged to the sliding member and rotatably connected to the first connecting member; or, the locking member is rotatably connected to the sliding member and slidably connected to the first connecting member. The pressing member includes a first inclined surface facing the sliding member, and the sliding member includes a second inclined surface facing the pressing member. The second inclined surface is adapted to the first inclined surface so that the pressing member can slide relative to the sliding member under the action of the boss, thereby causing the sliding member to drive the locking member to unlock from the first swing arm.

7. The support device according to claim 6, characterized in that, The reset member includes a first end and a second end opposite to each other. The first end is fixedly connected to the sliding member, and the second end abuts against the inner wall of the first connecting member that forms the receiving space.

8. The support device according to any one of claims 3 to 5, characterized in that, The locking member is slidably connected to the first connecting member; the pressing member includes a first inclined surface facing the locking member, and the locking member includes a third inclined surface facing the pressing member. The third inclined surface is adapted to the first inclined surface so that the pressing member, under the action of the boss, drives the locking member to slide relative to the first swing arm, thereby unlocking the first swing arm.

9. The support device according to claim 8, characterized in that, The reset member includes a first end and a second end opposite to each other. The first end is fixedly connected to the locking member, and the second end abuts against the inner wall of the first connecting member that forms the receiving space.

10. The support device according to claim 9, characterized in that, The accommodating space includes a second limiting hole extending along a first direction, the first direction being the direction in which the locking member slides relative to the second housing; the locking member includes a second limiting portion, the second limiting portion being slidably disposed within the second limiting hole, the second limiting hole and the second limiting portion cooperating to restrict the movement of the locking member in a direction different from the first direction.

11. The support device according to any one of claims 1 to 10, characterized in that, The support device includes at least two locking mechanisms, which are spaced apart in the second folding mechanism.

12. An electronic device, characterized in that, include: Flexible display screen; as well as The support device as described in any one of claims 1 to 11; The first housing, the second housing, the third housing, the first folding mechanism, and the second folding mechanism together support the flexible display screen.

13. The electronic device according to claim 12, characterized in that, When the first housing and the second housing are folded relative to each other, both the first housing and the second housing are folded toward the side where the flexible display screen is located; when the second housing and the third housing are folded relative to each other, both the second housing and the third housing are folded toward the side where the flexible display screen is located.

Images