Foldable mechanism and foldable terminal

Abstract

The application provides a foldable mechanism and a foldable terminal. In the foldable mechanism, a key is movable relative to a base between a first position and a second position. If hovering function is not needed, the key is moved to the first position. When the foldable mechanism is opened or closed to a hovering angle range, the first protruding part is spaced from the first friction part, the first friction part does not contact the first protruding part of the first swing arm, that is, the first friction part does not interfere with the rotation of the first swing arm relative to the base, the foldable mechanism is opened or closed smoothly, which helps to improve the opening and closing feeling of the foldable terminal and improve the user experience. When hovering function is needed, the key is moved to the second position. When the foldable mechanism is opened or closed to a hovering angle range, the first protruding part contacts and rubs against the first friction part, and the friction between the first protruding part and the first friction part can make the first swing arm keep a certain angle, so that the foldable mechanism achieves hovering effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foldable terminals, and in particular to a foldable mechanism and a foldable terminal. BACKGROUND

[0002] With the progress of science and technology, the era of large-screen intelligent terminals has arrived. Foldable terminals are favored by users due to their large screens and convenient portability. At present, foldable mechanisms are often used to achieve folding and unfolding of foldable terminals. However, the existing foldable mechanisms with hovering function often have a jamming phenomenon in the process of rotation, which affects the user experience. SUMMARY

[0003] The present application provides a foldable mechanism and a foldable terminal for improving the opening and closing feel of the foldable terminal and improving the user experience.

[0004] In a first aspect, the present application provides a foldable mechanism, comprising a base, a first friction piece, a first swing arm and a button, the first friction piece is installed on the inner side of the base, the first swing arm comprises a first rotating part and a first protruding part, the first rotating part is rotationally connected to the base and is located on the top side of the first friction piece and is arranged opposite to the first friction piece, the first protruding part is arranged on the surface of the first rotating part and surrounds the rotation center of the first rotating part, and the button is installed on the base and can move relative to the base between a first position and a second position.

[0005] When the foldable mechanism is in the hovering angle range and the button is in the first position, the first protruding part is arranged apart from the first friction piece.

[0006] When the foldable mechanism is in the hovering angle range and the button is in the second position, the first protruding part and the first friction piece rub against each other.

[0007] In the foldable mechanism shown in the present application, the button can move relative to the base between the first position and the second position. If the hovering function is not needed, the button can be moved to the first position. When the foldable mechanism is opened and closed to the hovering angle range, the first protruding part is arranged apart from the first friction piece, the first friction piece does not contact the first protruding part of the first swing arm, that is, the first friction piece does not interfere with the rotation of the first swing arm relative to the base. The opening and closing of the foldable mechanism is smooth, which helps to improve the opening and closing feel of the foldable terminal and improve the user experience.

[0008] When the hovering function is needed, the button can be moved to the second position. When the foldable mechanism is opened and closed to the hovering angle range, the first protruding part contacts and rubs against the first friction piece, and the friction between the first protruding part and the first friction piece can keep the first swing arm at a certain angle, thereby achieving the hovering effect of the foldable mechanism.

[0009] In one embodiment, the first friction piece comprises an assembling portion, a friction portion and a free portion, the assembling portion is mounted on the base, the friction portion is fixedly connected to one side of the assembling portion and is arranged opposite to the first rotating portion, and the free portion is fixedly connected to the side of the friction portion away from the assembling portion;

[0010] The base is provided with a sliding hole, the sliding hole is communicated with the inner side and the outer side of the base and is arranged opposite to the button;

[0011] The foldable mechanism further comprises a supporting block, the supporting block is arranged in the sliding hole and is fixedly connected to the button and can move relative to the base under the driving of the button;

[0012] When the button is in the first position, the supporting block is arranged opposite to the free portion, and the friction portion is arranged apart from the first protruding portion. The friction portion can be in a horizontal state relative to the base, the distance between the friction portion and the first rotating portion is large, and the first protruding portion will not contact the friction portion in the process of rotating the first swing arm relative to the base, thereby ensuring the fluency of the rotation of the first swing arm relative to the base.

[0013] When the foldable mechanism is in the hovering angle range and the button is in the second position, the supporting block abuts against the free portion, and the friction portion is in friction with the first protruding portion. The friction portion is in an inclined state relative to the base, the distance between the friction portion and the first rotating portion is small, and the first protruding portion will contact the friction portion in the process of rotating the first swing arm relative to the base, thereby realizing the hovering effect of the foldable mechanism.

[0014] In one embodiment, the supporting block comprises a supporting surface away from the button, the supporting block is provided with a stop portion, the stop portion is arranged on the side of the supporting block away from the button and protrudes relative to the supporting surface;

[0015] When the button is in the second position, the supporting surface abuts against the free portion, and the stop portion is located on the side of the free portion toward the first position.

[0016] When the button moves from the first position to the second position, the stop portion can stop the free portion of the friction piece, thereby avoiding the problem that the supporting block cannot support the free portion due to the excessive movement distance of the button, and ensuring the reliability of the foldable mechanism when switching between the non-hovering function and the hovering function.

[0017] In one embodiment, the supporting block further comprises a transition surface, the transition surface is connected to the supporting surface, the distance between the transition surface and the supporting surface becomes larger and larger in the direction from the first position to the second position, and when the button is in the first position, the transition surface is located on the side of the supporting surface toward the free portion.

[0018] When the key is moved from the first position to the second position, the transition surface can guide the support block to enter the bottom side of the free part, avoid hard contact between the support block and the free part, and ensure the use reliability of the foldable mechanism.

[0019] In an embodiment, the base is provided with a limiting part, the limiting part is arranged on the inner side of the base, and the limiting part comprises a limiting part located on the top side of the free part and arranged opposite to the free part.

[0020] The limiting part can limit the movement distance of the free part in the direction towards the limiting part, avoid large deformation of the free part affecting the rotation of the first swing arm relative to the base, ensure the smoothness of the rotation of the first swing arm relative to the base, help to improve the opening and closing feeling of the foldable terminal, and improve the user experience.

[0021] In an embodiment, the foldable mechanism further comprises a second swing arm, the second swing arm comprises a second rotating part, and the second rotating part is rotationally connected to the base. When the foldable mechanism is switched between the unfolded state and the folded state, the rotation direction of the first swing arm relative to the base is a first direction, and the rotation direction of the second swing arm relative to the base is a second direction opposite to the first direction.

[0022] When the foldable mechanism is switched between the unfolded state and the folded state, if the first swing arm rotates relative to the base in a counterclockwise direction, the second swing arm rotates relative to the base in a clockwise direction. If the first swing arm rotates relative to the base in a clockwise direction, the second swing arm rotates relative to the base in a counterclockwise direction.

[0023] It should be noted that the first swing arm and the second swing arm can both rotate relative to the base, which helps to ensure the rotation stability of the foldable mechanism when switched between the folded state and the unfolded state. It can be understood that in other embodiments, the foldable mechanism can only include the first swing arm and not the second swing arm, or the foldable mechanism can only include the second swing arm and not the first swing arm, i.e., the foldable mechanism can only have one side that can swing relative to the base, and the present application does not make specific limitations in this regard.

[0024] In an embodiment, the foldable mechanism further comprises a second friction member, the second friction member is mounted on the inner side of the base and located on the bottom side of the second rotating part and arranged opposite to the second rotating part, the second swing arm further comprises a second protruding part, the second protruding part is arranged on the surface of the second rotating part and surrounds the rotation center of the second rotating part;

[0025] When the foldable mechanism is in the hovering angle range and the key is in the first position, the second protruding part and the second friction member are spaced apart;

[0026] When the foldable mechanism is in the hovering angle range and the key is in the second position, the second protruding part and the second friction member rub against each other.

[0027] In the present application, the hovering function of the foldable terminal is realized by the structural cooperation between the key, the first friction member and the first protruding portion of the first swing arm, and the structural cooperation between the second friction member and the second protruding portion of the second swing arm. The foldable mechanism has a simple structure, a small size and a low cost. Moreover, the switching operation of the user when using the hovering function and when not using the hovering function is simple. The hovering function switching can be realized by quickly pressing the key, which helps to improve the user experience.

[0028] In an embodiment, the foldable mechanism further comprises a synchronization assembly, which is installed on the base and used to drive the first swing arm and the second swing arm to synchronously rotate relative to the base.

[0029] In an embodiment, the foldable mechanism comprises a damping assembly, which comprises a first rotating shaft, a second rotating shaft, a first elastic member, a second elastic member, a damping bracket, a first swing arm and a second swing arm. The first rotating shaft, the second rotating shaft, the first elastic member, the second elastic member and the damping bracket are all installed on the inner side of the base. The first rotating shaft and the second rotating shaft are spaced apart and oppositely arranged. The damping bracket is sleeved on the first rotating shaft and the second rotating shaft. The first elastic member and the second elastic member are located on the same side of the damping bracket. The first elastic member is sleeved on the first rotating shaft, and the second elastic member is sleeved on the second rotating shaft. The first swing arm is sleeved on the first rotating shaft and abuts against opposite ends of the first elastic member and is hinged to the damping bracket. The second swing arm is sleeved on the second rotating shaft and abuts against opposite ends of the second elastic member and is hinged to the damping bracket.

[0030] In other words, the first swing arm and the second swing arm are both damping swing arms in the damping assembly, and the hovering function of the foldable mechanism can be realized without adding additional swing arms, which helps to simplify the structure of the foldable mechanism.

[0031] In an embodiment, the key moves along the Y-axis direction between the first position and the second position relative to the base, which helps to reduce the size of the foldable mechanism in the X-axis direction and the Z-axis direction. The Y-axis direction is the length direction of the base.

[0032] In an embodiment, the base is provided with a mounting groove, and the opening of the mounting groove is located on the bottom surface of the base. The key is installed in the mounting groove and can move relative to the base in the mounting groove. The key can reuse the height space of the mounting groove, and the height space occupied by the key is reduced.

[0033] In an embodiment, the hovering angle range is greater than or equal to 45° and less than or equal to 125°.

[0034] In an embodiment, the hovering angle range is greater than or equal to 60° and less than or equal to 120°.

[0035] Secondly, this application provides a foldable terminal, including a first housing, a second housing, and any one of the aforementioned foldable mechanisms, wherein the foldable mechanism is connected between the first housing and the second housing.

[0036] In the foldable mechanism of the foldable terminal shown in this application, the button can move between a first position and a second position relative to the base. If the hovering function is not needed, the button can be moved to the first position. When the foldable mechanism is opened and closed to the hovering angle range, the first protrusion and the first friction member are spaced apart. The first friction member will not contact the first protrusion of the first swing arm. That is, the first friction member will not interfere with the rotation of the first swing arm relative to the base. The opening and closing of the foldable mechanism is smooth, which helps to improve the opening and closing feel of the foldable terminal and improve the user experience.

[0037] When the hovering function is needed, the button can be moved to the second position. When the foldable mechanism is opened and closed to the hovering angle range, the first protrusion and the first friction member come into contact and rub against each other. The friction between the first protrusion and the first friction member can keep the first swing arm at a certain angle, so that the foldable terminal can achieve the hovering effect. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0039] Figure 1 This is a schematic diagram of the structure of the first foldable terminal provided in this application embodiment in a folded state;

[0040] Figure 2 yes Figure 1 The diagram shows the structure of the foldable terminal in its unfolded state.

[0041] Figure 3 yes Figure 2 The exploded view of the foldable terminal shown.

[0042] Figure 4 yes Figure 3 An exploded view of the foldable device in the foldable terminal shown.

[0043] Figure 5 yes Figure 4 A partial structural schematic diagram of the foldable mechanism in the foldable device shown;

[0044] Figure 6 yes Figure 5 A schematic diagram of the foldable mechanism shown from another angle;

[0045] Figure 7 yes Figure 5 An exploded view of the foldable mechanism shown.

[0046] Figure 8 is a partial structural schematic view of the foldable mechanism shown in Figure 7

[0047] Figure 9 is a structural schematic view of the foldable mechanism shown in Figure 8

[0048] Figure 10 is a structural schematic view of the key assembly in the foldable mechanism shown in Figure 7

[0049] Figure 11 is a partial cross-sectional structural schematic view of the foldable mechanism shown in Figure 5

[0050] Figure 12 is a partial cross-sectional structural schematic view of the foldable mechanism shown in Figure 5

[0051] Figure 13 is a structural schematic view of the friction member in the foldable mechanism shown in Figure 7

[0052] Figure 14 is a cross-sectional structural schematic view of the foldable device in the foldable terminal shown in Figure 3

[0053] Figure 15 is a cross-sectional structural schematic view of the foldable device in the foldable terminal shown in Figure 3

[0054] Figure 16 is a structural schematic view of the swing arm in the foldable mechanism shown in Figure 7

[0055] Figure 17 is a simplified structural schematic view of the friction member and the swing arm in the foldable mechanism shown in Figure 15

[0056] Figure 18 is a partial structural schematic view of the damping assembly in the foldable mechanism shown in Figure 7 DETAILED DESCRIPTION

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0058] Please refer to Figure 1 and Figure 2 ,​​​​​​​​​​​Figure 1 is a structural schematic diagram of a foldable terminal 1000 in a folded state, provided by an embodiment of the present application, Figure 2 is Figure 1 is a structural schematic diagram of the foldable terminal 1000 in an unfolded state.

[0059] The foldable terminal 1000 can be a foldable electronic product such as a mobile phone, a tablet computer, a personal computer, a multimedia player, an electronic book reader, a notebook computer, a vehicle-mounted device, or a wearable device. In the embodiment, the foldable terminal 1000 is a foldable mobile phone. That is, the foldable terminal 1000 is a mobile phone that can be switched between a folded state and an unfolded state.

[0060] For ease of description, it is defined that Figure 1 The width direction of the foldable terminal 1000 is the X-axis direction, the length direction of the foldable terminal 1000 is the Y-axis direction, and the thickness direction of the foldable terminal 1000 is the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. For example, the extension direction of the rotation axis of the foldable terminal 1000 is parallel to the Y-axis direction. That is, the foldable terminal 1000 can be relatively unfolded or relatively folded around the Y-axis direction.

[0061] It should be noted that the parallel and perpendicular and other relative positional relationship modifiers mentioned in the embodiments of the present application are relative to the current process level, not the absolute strict definition in the mathematical sense, and a small amount of deviation is allowed, and approximately parallel and approximately perpendicular are also allowed. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B is between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B is between 80 degrees and 100 degrees.

[0062] In the folded state, the foldable terminal 1000 is folded along the X-axis direction, and the foldable terminal 1000 is relatively small in the X-axis direction. Figure 1 In the unfolded state, the foldable terminal 1000 is unfolded along the X-axis direction, and the foldable terminal 1000 is relatively large in the X-axis direction. Figure 2 In the unfolded state, the foldable terminal 1000 is unfolded along the X-axis direction, and the foldable terminal 1000 is relatively large in the X-axis direction. Figure 2 The unfolded angle α of the foldable terminal 1000 is 180 degrees. In other words, the foldable terminal 1000 is unfolded along the X-axis direction. Figure 1 In the unfolded state, the foldable terminal 1000 is unfolded along the X-axis direction, and the foldable terminal 1000 is relatively large in the X-axis direction.

[0063] It should be noted that the angles illustrated in the embodiments of the present application allow a small amount of deviation. For example, Figure 2The unfolding angle α of the foldable terminal 1000 shown is 180 degrees. This means that α can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles illustrated in the following text can be understood in the same way.

[0064] It should be understood that the foldable terminal 1000 shown in this embodiment is a terminal capable of being folded once. In some other embodiments, the foldable terminal 1000 may also be a terminal capable of being folded multiple times (more than twice). In this case, the foldable terminal 1000 may include multiple parts, and two adjacent parts may be folded relatively close together until the foldable terminal 1000 is in a folded state, and two adjacent parts may also be unfolded relatively away from each other until the foldable terminal 1000 is in an unfolded state.

[0065] Please refer to the following: Figure 3 , Figure 3 yes Figure 2 The exploded structural diagram of the foldable terminal 1000 is shown.

[0066] The foldable terminal 1000 includes a foldable device 100 and a display screen 200, with the display screen 200 mounted on the foldable device 100. The display screen 200 includes a display surface 201 facing away from the foldable device 100, which is used to display information such as text, images, or videos. In this embodiment, the display screen 200 includes a first display portion 210, a second display portion 220, and a foldable portion 230, which is connected between the first display portion 210 and the second display portion 220. The foldable portion 230 is foldable about the Y-axis.

[0067] like Figure 1 As shown, when the foldable terminal 1000 is in the folded state, both the foldable device 100 and the display screen 200 are folded, the first display portion 210 and the second display portion 220 are arranged opposite to each other, and the foldable portion 230 is bent. At this time, the exposed area of ​​the display screen 200 is relatively small, which can greatly reduce the probability of the display screen 200 being damaged and achieve effective protection for the display screen 200.

[0068] like Figure 2 As shown, when the foldable terminal 1000 is in a flattened state, both the foldable device 100 and the display screen 200 are flattened, with the first display portion 210 and the second display portion 220 relatively flattened, and the foldable portion 230 flattened without bending. At this time, the included angles between the first display portion 210 and the second display portion 220, between the first display portion 210 and the foldable portion 230, and between the second display portion 220 and the foldable portion 230 are all α. The display screen 200 has a large display area, realizing a large-screen display for the foldable terminal 1000 and improving the user experience.

[0069] It should be understood that the foldable terminal 1000 shown in the embodiments of the present application is folded in an inward folding manner, and when the foldable terminal 1000 is in the folded state, the display screen 200 is located at the inner side of the foldable device 100. In some other embodiments, the foldable terminal 1000 can also be folded in an outward folding manner, and when the foldable terminal 1000 is in the folded state, the display screen 200 is located at the outer side of the foldable device 100.

[0070] Please refer to Figure 3 and Figure 4 , Figure 4 is Figure 3 the exploded structural view of the foldable device 100 in the foldable terminal 1000 shown.

[0071] The foldable device 100 includes a first housing 110, a second housing 120, and a foldable mechanism 130 connected between the first housing 110 and the second housing 120 to realize the rotational connection between the first housing 110 and the second housing 120. Specifically, the first housing 110 carries a first display part 210, and the second housing 120 carries a second display part 220. In other words, the first display part 210 is mounted on the first housing 110, and the second display part 220 is mounted on the second housing 120. The foldable mechanism 130 is arranged opposite to the foldable part 230.

[0072] The first housing 110 and the second housing 120 can be relatively rotated by the foldable mechanism 130, so that the foldable device 100 is switched between the folded state and the unfolded state. Specifically, the first housing 110 and the second housing 120 can be relatively rotated to be arranged opposite to each other, so that the foldable device 100 is in the folded state, as shown in Figure 1 At this time, the foldable mechanism 130 is in the folded state. The first housing 110 and the second housing 120 can also be relatively rotated to be relatively flattened, so that the foldable terminal 1000 is in the flattened state, as shown in Figure 2 At this time, the included angle between the first housing 110 and the second housing 120 is α, and the foldable mechanism 130 is in the flattened state.

[0073] The first housing 110 is provided with a first receiving groove 1101, and the first receiving groove 1101 is located on the side of the first housing 110 facing the second housing 120. The opening of the first receiving groove 1101 is located on the top surface of the first housing 110. The first receiving groove 1101 is recessed from the top surface to the bottom surface of the first housing 110, and penetrates through the side surface of the first housing 110 facing the second housing 120. The side surface of the first housing 110 facing the second housing 120 is the left side surface of the first housing 110.

[0074] It should be noted that the "top", "bottom", "left", "right", "front" and "back" and other orientation words used when describing the folding terminal 1000 are mainly described based on the folding terminal 1000 in the display orientation in FIG. 1, with the positive direction of the Z axis as "top", the negative direction of the Z axis as "bottom", the positive direction of the X axis as "right", the negative direction of the X axis as "left", the positive direction of the Y axis as "back", and the negative direction of the Y axis as "front", which does not form a limitation on the orientation of the folding terminal 1000 in the actual application scenario. Figure 2

[0075] In addition, the first housing 110 is also provided with a first mounting portion 140, which is arranged on the groove bottom wall surface of the first receiving groove 1101 and is located between the side surface of the first housing 110 facing the second housing 120 and the groove side wall surface of the first receiving groove 1101, and is spaced apart from both the side surface of the first housing 110 facing the second housing 120 and the groove side wall surface of the first receiving groove 1101. Specifically, the first mounting portion 140 extends from the groove bottom wall surface of the first receiving groove 1101 towards the direction of the opening of the first receiving groove 1101. For example, the first mounting portion 140 is in the shape of a square block, and the length direction of the first mounting portion 140 is parallel to the Y axis direction.

[0076] The first mounting portion 140 includes a first side surface and a second side surface, the first side surface is a surface of the first mounting portion 140 away from the groove side wall surface of the first receiving groove 1101, and the second side surface is arranged opposite to the first side surface. The first mounting portion 140 is provided with a first sliding hole 1401, and the opening of the first sliding hole 1401 is located on the first side surface. The first sliding hole 1401 is recessed from the first side surface towards the second side surface and penetrates through the second side surface.

[0077] The second housing 120 and the first housing 110 are the same in structure and are mirror-symmetric with respect to the folding mechanism 130. The second housing 120 is provided with a second receiving groove 1201 located on the side of the second housing 120 facing the first housing 110. The opening of the second receiving groove 1201 is located on the top surface of the second housing 120. The second receiving groove 1201 is recessed from the top surface of the second housing 120 towards the bottom surface and penetrates through the side surface of the second housing 120 facing the first housing 110. The side surface of the second housing 120 facing the first housing 110 is the right side surface of the second housing 120. In addition, the second housing 120 is also provided with a second mounting portion 150, and the second mounting portion 150 is provided with a second sliding hole 1501. It should be noted that the structure of the second mounting portion 150 and the second sliding hole 1501 can be described with reference to the above description of the first mounting portion 140 and the first sliding hole 1401, which will not be described here.

[0078] ​When the foldable device 100 is in the unfolded state, i.e., the included angle between the first housing 110 and the second housing 120 is α, the first receiving groove 1101 of the first housing 110 and the second receiving groove 1201 of the second housing 120 enclose a receiving space 1301. The foldable mechanism 130 is installed in the receiving space 1301 and is in sliding connection with the first housing 110 and the second housing 120. Part of the foldable mechanism 130 is installed in the first receiving groove 1101 of the first housing 110 and is in sliding connection with the first mounting portion 140, and part of the foldable mechanism 130 is installed in the second receiving groove 1201 of the second housing 120 and is in sliding connection with the second mounting portion 150.

[0079] At present, foldable terminals often use foldable mechanisms to realize folding, unfolding and hovering. However, due to factors such as use environment, use time and product batch, the existing foldable mechanisms often have a jamming phenomenon in the opening and closing process, affecting the user's use experience. Moreover, due to the manufacturing tolerance of parts or the problem of wear and tear of parts caused by long-term use, if the foldable terminal is adjusted to a hovering state after being used in an unfolded state for a period of time, the hovering state may not be able to be kept stable, which will also cause the foldable terminal to have a jamming feeling in the opening and closing process, affecting the user's use experience. It should be noted that the "opening and closing process" mentioned in the foldable terminal described in the present application refers to the process of switching between the folded state and the unfolded state.

[0080] Next, the structure of the foldable mechanism 130 in the foldable terminal 1000 shown in the embodiment of the present application will be described.

[0081] Please refer to Figures 5 to 7 , Figure 5 is Figure 4 the partial structure schematic diagram of the foldable mechanism 130 in the foldable device 100 shown in Figure 6 is Figure 5 the structure schematic diagram of the foldable mechanism 130 shown in another angle, Figure 7 is Figure 5 the exploded structure schematic diagram of the foldable mechanism 130 shown.

[0082] The foldable mechanism 130 comprises a base 10, rotating shafts 20, a key assembly 30, friction members 40, swing arms 50 and a synchronous assembly 60, the rotating shafts 20, the key assembly 30, the friction members 40, the swing arms 50 and the synchronous assembly 60 are all mounted on the inner side of the base 10. For example, the base 10 extends along the Y-axis direction, that is, the length direction of the base 10 is the Y-axis direction. The rotating shafts 20 are two, and the two rotating shafts 20 are parallel and spaced apart. For example, the shafts of the two rotating shafts 20 are parallel to the Y-axis direction. Among them, the two rotating shafts 20 are respectively a first rotating shaft 21 and a second rotating shaft 22. The key assembly 30 can slide relative to the base 10. For example, the key assembly 30 can move along the Y-axis direction relative to the base 10.

[0083] The friction members 40 are two, and the two friction members 40 are respectively located on the bottom side of the two rotating shafts 20 and are spaced apart from the rotating shafts 20. Along the X-axis direction, the two friction members 40 are arranged apart from each other. Among them, the two friction members 40 are respectively a first friction member 41 and a second friction member 42, the first friction member 41 is located on the bottom side of the first rotating shaft 21 and is spaced apart from the first rotating shaft 21, and the second friction member 42 is located on the bottom side of the second rotating shaft 22 and is spaced apart from the second rotating shaft 22.

[0084] The swing arms 50 are two, and the two swing arms 50 are respectively sleeved on the two rotating shafts 20 and are arranged apart along the X-axis direction and are rotatably connected to the base 10. Among them, the two swing arms 50 are respectively a first swing arm 51 and a second swing arm 52, the first swing arm 51 is sleeved on the first rotating shaft 21, and the second swing arm 52 is sleeved on the second rotating shaft 22. The synchronous assembly 60 is sleeved on the two rotating shafts 20 and is rotatably connected to the base 10. Among them, the synchronous assembly 60 can make the two rotating shafts 20 rotate synchronously relative to the base 10, so as to make the two swing arms 50 rotate synchronously relative to the base 10.

[0085] When the foldable mechanism 130 switches between the folded state and the unfolded state, the direction in which the first swing arm 51 rotates relative to the base 10 is a first direction, and the direction in which the second swing arm 52 rotates relative to the base 10 is a second direction, and the second direction is opposite to the first direction. For example, when the foldable mechanism 130 switches from the folded state to the unfolded state, the first swing arm 51 rotates relative to the base 10 in the counterclockwise direction, and the second swing arm 52 rotates relative to the base 10 in the clockwise direction. When the foldable mechanism 130 switches from the unfolded state to the folded state, the first swing arm 51 rotates relative to the base 10 in the clockwise direction, and the second swing arm 52 rotates relative to the base 10 in the counterclockwise direction.

[0086] It should be noted that the first swing arm 51 and the second swing arm 52 can rotate relative to the base 10, which helps to ensure the rotation stability of the foldable mechanism 130 when switching between the folded state and the unfolded state. It can be understood that in other embodiments, the foldable mechanism 130 can only include the first swing arm 51 without the second swing arm 52, or the foldable mechanism 130 can only include the second swing arm 52 without the first swing arm 51, that is, the foldable mechanism 130 can only swing on one side relative to the base 10, which is not specifically limited in the present application.

[0087] Please refer to Figure 7 、 Figure 8 and Figure 9 , Figure 8 is a partial structural schematic view of the foldable mechanism 130 shown in Figure 7 , Figure 9 is a structural schematic view of the foldable mechanism 130 at another angle shown in Figure 8 . Among them, Figure 8 shows the base 10, the rotating shaft 20 and the synchronization assembly 60.

[0088] The base 10 includes a shaft cover 11, a first support 12 and a second support 13, and the first support 12 and the second support 13 are fixedly connected to the shaft cover 11. For example, the first support 12, the second support 13 and the third support 14 can be fixedly connected to the shaft cover 11 by screws or bolts and the like. In other embodiments, the shaft cover 11, the first support 12 and the second support 13 can be integrally formed.

[0089] In this embodiment, the shaft cover 11 extends along the Y-axis direction. The shaft cover 11 is provided with an assembly groove 111, an avoidance groove 112, an avoidance notch 113, a mounting hole (not marked in the figure), a mounting groove 114 and a sliding hole 115. The opening of the assembly groove 111 and the opening of the avoidance groove 112 are located on the top surface of the shaft cover 11. The assembly groove 111 and the avoidance groove 112 are recessed from the top surface of the shaft cover 11 to the bottom surface of the shaft cover 11. Among them, the assembly groove 111 includes a first groove side wall surface 1111, a second groove side wall surface 1112 and a groove bottom wall surface 1113. The first groove side wall surface 1111 has two, which are spaced apart and oppositely arranged along the X-axis direction. The second groove side wall surface 1112 faces the avoidance groove 112 and is connected between the two first groove side wall surfaces 1111. The groove bottom wall surface 1113 connects the two first groove side wall surfaces 1111 and the second groove side wall surface 1112. Along the Y-axis direction, the avoidance groove 112 is located on one side of the assembly groove 111 and is spaced apart from the assembly groove 111.

[0090] The opening of the avoiding gap 113 is located on the circumferential side surface of the shaft cover 11. The avoiding gap 113 is recessed from the outer surface of the shaft cover 11 towards the direction of the first groove side wall surface 1111, and penetrates the first groove side wall surface 1111 and communicates with the assembly groove 111. Among them, the avoiding gap 113 has two, and the two avoiding gaps 113 are respectively the first avoiding gap 1131 and the second avoiding gap 1132, the first avoiding gap 1131 penetrates one first groove side wall surface 1111, and the second avoiding gap 1132 penetrates another first groove side wall surface 1111.

[0091] The opening of the mounting hole is located on the second groove side wall surface 1112. The mounting hole is recessed from the second groove side wall surface 1112 towards the direction of the avoiding groove 112, and penetrates the groove side wall surface of the avoiding groove 112 towards the assembly groove 111. Among them, the mounting hole has four, and the four mounting holes are respectively two first mounting holes and two second mounting holes, along the X-axis direction, the two first mounting holes are arranged at intervals, and the two second mounting holes are located between the two first mounting holes and are arranged at intervals with the first mounting hole. Exemplarily, the first mounting hole and the second mounting hole are both circular holes, and the hole diameter of the first mounting hole is larger than that of the second mounting hole.

[0092] The opening of the mounting groove 114 is located on the bottom surface of the shaft cover 11. The mounting groove 114 is recessed from the bottom surface of the shaft cover 11 towards the direction of the top surface of the shaft cover 11. Among them, the mounting groove 114 is rectangular, and the extension direction of the mounting groove 114 is parallel to the Y-axis direction. The opening of the sliding hole 115 is located on the groove bottom wall surface 1113. The sliding hole 115 is recessed from the groove bottom wall surface 1113 towards the direction of the bottom surface of the shaft cover 11, and penetrates the groove bottom wall surface of the mounting groove 114. Among them, the sliding hole 115 has two, and the first sliding hole 1151 and the second sliding hole 1152 are arranged at intervals along the X-axis direction, the first sliding hole 1151 is close to the first avoiding gap 1131, and the second sliding hole 1152 is close to the second avoiding gap 1132. Exemplarily, the sliding hole 115 is long strip-shaped, and the length direction of the sliding hole 115 is parallel to the Y-axis direction.

[0093] In addition, the shaft cover 11 is provided with a limiting portion 116 and a fixing portion 117. The limiting portion 116 and the fixing portion 117 are both provided on the groove bottom wall surface 1113 and both extend from the groove bottom wall surface 1113 towards the direction of the opening of the assembly groove 111. The limiting portion 116 comprises a connecting portion 1161 and two limiting portions 1162. The connecting portion 1161 is connected to the groove bottom wall surface 1113, and the two limiting portions 1162 are respectively fixedly connected to the opposite sides of the connecting portion 1161 along the thickness direction of the connecting portion 1161. For example, the connecting portion 1161 and the limiting portion 1162 can be integrally formed. Among them, the two limiting portions 1162 are respectively a first limiting portion 1163 and a second limiting portion 1164. The first limiting portion 1163 is located on the top side of the first sliding hole 1151, and the second limiting portion 1164 is located on the top side of the second sliding hole 1152. For example, the limiting portion 116 is in the shape of a "T" letter, and the connecting portion 1161 and the limiting portion 1162 are both in the shape of a flat plate.

[0094] The fixing portion 117 has two, which are respectively located on the opposite sides of the limiting portion 116 along the X-axis direction and are both arranged in a spaced manner with the limiting portion 116. Among them, the two fixing portions 117 are respectively a first fixing portion 1171 and a second fixing portion (not shown in the figure). The first fixing portion 1171 is close to the first avoiding gap 1131, and the second fixing portion is close to the second avoiding gap 1132. Each fixing portion 117 is provided with a first fixing hole 1172, which is located on the surface of the fixing portion 117 facing the opening of the assembly groove 111. The first fixing hole 1172 is recessed from the surface of the fixing portion 117 facing the opening of the assembly groove 111 to the direction away from the opening of the assembly groove 111. For example, the first fixing hole 1172 is a circular hole.

[0095] The first support 12 and the second support 13 are both mounted on the assembly groove 111 and are arranged in a spaced manner along the Y-axis direction. The first support 12 is provided with a third mounting hole (not marked in the figure), and the opening of the third mounting hole is located on the surface of the first support 12 facing the second support 13. The third mounting hole is recessed from the surface of the first support 12 facing the second support 13 to the surface away from the second support 13, and penetrates through the surface of the first support 12 away from the second support 13. Among them, the third mounting hole has two, which are arranged in a spaced manner along the X-axis direction. For example, the third mounting hole is a circular hole. In other embodiments, the third mounting hole can also not penetrate through the surface of the first support 12 away from the second support 13.

[0096] The second support 13 is provided with a communication hole (not labeled in the figure) and a fourth mounting hole (not labeled in the figure). The communication hole penetrates the second support 13 along the Y-axis direction. There are two communication holes, which are arranged at intervals along the X-axis direction, and are respectively arranged corresponding to the two first mounting holes and the two third mounting holes. The fourth mounting hole is opened on the surface of the second support 13 away from the first support 12. The fourth mounting hole is recessed from the surface of the second support 13 away from the first support 12 towards the first support 122. There are two fourth mounting holes, which are arranged at intervals along the X-axis direction, and are respectively arranged corresponding to the two second mounting holes. The communication hole and the fourth mounting hole are both circular holes. The central axis of the communication hole, the central axis of the first mounting hole and the central axis of the third mounting hole coincide. The central axis of the fourth mounting hole coincides with the central axis of the second mounting hole.

[0097] The two rotating shafts 20 are both mounted in the assembly groove 111, and are respectively located on opposite sides of the limiting portion 116 along the X-axis direction, and are both arranged at intervals from the limiting portion 116. Specifically, each rotating shaft 20 is arranged through a first mounting hole, a communication hole and a third mounting hole. The first rotating shaft 21 is close to the first avoiding gap 1131, and the second rotating shaft 22 is close to the second avoiding gap 1132.

[0098] The synchronous assembly 60 is mounted in the assembly groove 111 and located between the second support 13 and the second groove side wall surface 1112. The synchronous assembly 60 is used to drive the first swing arm 51 and the second swing arm 52 to rotate synchronously relative to the base 10. In this embodiment, the synchronous assembly 60 includes four gears 61, which are arranged in sequence along the X-axis direction, and adjacent two gears 61 are meshed with each other. The four gears 61 are respectively a first gear 62, a second gear 63 and two third gears 64. The first gear 62 is sleeved on the first rotating shaft 21, the second gear 63 is sleeved on the second rotating shaft 22, and each third gear 64 is mounted at one end of a second mounting hole and at the other end of a fourth mounting hole.

[0099] When the first rotating shaft 21 drives the first gear 62 to rotate relative to the base 10, the first gear 62 drives the two third gears 64 to rotate relative to the base 10, the third gear 64 drives the second gear 53 to rotate relative to the base 10, and finally, the second gear 53 drives the second rotating shaft 22 to rotate relative to the base 10, so as to realize the synchronous rotation of the first rotating shaft 21 and the second rotating shaft 22. It should be noted that when the second rotating shaft 22 rotates relative to the base 10, the process of the four gears 61 driving the first rotating shaft 21 to rotate relative to the base 10 is similar, which will not be described here.

[0100] Please refer to Figure 9 andFigure 10 , Figure 10 is Figure 7 is a structural schematic view of the key assembly 30 in the foldable mechanism 130.

[0101] The key assembly 30 comprises a key 31 and a support block 32, and the support block 32 is fixedly connected to the key 31. The key 31 is installed in the installation groove 114 and can slide in the installation groove 114 relative to the base 10 between the first position and the second position. The key 31 is arranged opposite to the two sliding holes 115. For example, the key 31 can slide along the Y-axis direction relative to the base 10 between the first position and the second position in the installation groove 114. The key 31 is provided with a fifth installation hole 311, and the opening of the fifth installation hole 311 is located on the top surface of the key 31. The fifth installation hole 311 is recessed from the top surface to the bottom surface of the key 31. There are two fifth installation holes 311, which are arranged apart from each other along the X-axis direction and correspond to the two sliding holes 115, respectively.

[0102] The support block 32 has two, which are a first support block 33 and a second support block 34. The first support block 33 is arranged in the first sliding hole 1151 and extends into one of the fifth installation holes 311 and is fixedly connected to the key 31. The second support block 34 is arranged in the second sliding hole 1152 and extends into the other fifth installation hole 311 and is fixedly connected to the key 31. The first support block 33 is located on the bottom side of the first limiting portion 1163, and the second support block 34 is located on the bottom side of the second limiting portion 1164. When the key 31 slides relative to the base 10 between the first position and the second position in the installation groove 114, the first support block 33 can slide relative to the first limiting portion 1163 under the driving of the key 31, and the second support block 34 can slide relative to the second limiting portion 1164 under the driving of the key 31.

[0103] Each support block 32 comprises an auxiliary surface 321, a support surface 322 and a transition surface 323, and the auxiliary surface 321, the support surface 322 and the transition surface 323 all face the limiting portion 1162. The auxiliary surface 321 and the support surface 322 are arranged in sequence along the Y-axis direction. The support surface 322 is located on the top side of the auxiliary surface 321, and the transition surface 323 is connected between the auxiliary surface 321 and the support surface 322. The distance between the transition surface 323 and the support surface 322 becomes larger and larger along the direction from the first position to the second position. For example, the transition surface 323 is an inclined surface, or the transition surface 323 is an arc surface. When the key 31 moves from the first position to the second position, the transition surface 323 can play a guiding role to guide the support block 32 to enter the bottom side of the friction piece 40, so as to avoid the hard contact between the support block 32 and the friction piece 40 and damage, and ensure the use reliability of the foldable mechanism 130.

[0104] In addition, each support block 32 is provided with a stop portion 324, which is located on the side of the support block 32 away from the key 31 and protrudes relative to the support surface 322. Specifically, the stop portion 324 is located on the side of the support surface 322 away from the transition surface 323. The stop portion 324 is in the form of a square block.

[0105] Please refer to Figure 11 and Figure 12 , Figure 11 is Figure 5 the partial cross-sectional structure schematic diagram of the foldable mechanism 130 shown in FIG. 13, wherein the key 31 is in the first position, Figure 12 is Figure 5 the partial cross-sectional structure schematic diagram of the foldable mechanism 130 shown in FIG. 14, wherein the key 31 is in the second position.

[0106] When the key 31 is in the first position, in the Y-axis direction, the support surface 322 of the first support block 33 is located on the side of the first limiting portion 1163 and exposed relative to the first limiting portion 1163, and the support surface 322 of the second support block 34 is located on the side of the second limiting portion 1164 and exposed relative to the second limiting portion 1164. Among them, the auxiliary surface 321 and the transition surface 323 of the first support block 33 are located on the side of the support surface 322 of the first support block 33 facing the first friction member 41, and the auxiliary surface 321 and the transition surface 323 of the second support block 34 are located on the side of the support surface 322 of the second support block 34 facing the second friction member 42.

[0107] At this time, the auxiliary surface 321 and / or the transition surface 323 of the first support block 33 can be located on the bottom side of the first limiting portion 1163, or the auxiliary surface 321 and / or the transition surface 323 of the first support block 33 can be exposed relative to the first limiting portion 1163, and the auxiliary surface 321 and / or the transition surface 323 of the second support block 34 can be located on the bottom side of the first limiting portion 1163, or the auxiliary surface 321 and / or the transition surface 323 of the second support block 34 can be exposed relative to the first limiting portion 1163.

[0108] When the key 31 is in the second position, the support surface 322 of the first support block 33 is located at the bottom side of the first limiting portion 1162 and is spaced and opposite to the first limiting portion 1163, and the support surface 322 of the second support block 34 is located at the bottom side of the second limiting portion 1164 and is spaced and opposite to the second limiting portion 1164. Wherein, the stop portion 324 of the first support block 33 is located at the side of the first friction piece 41 facing the first position, the stop portion 324 of the second support block 34 is located at the side of the second friction piece 42 facing the first position, and the stop portions 324 of the two support blocks 32 can stop the two friction pieces 40 respectively, avoiding the problem that when the key 31 moves from the first position to the second position, the moving distance is too large, and the two support blocks 32 cannot support the friction pieces 40, and ensuring the reliability of the folding mechanism 130 in switching between the non-suspension function and the suspension function.

[0109] Please refer to Figure 8 、 Figure 10 and Figure 13 , Figure 13 is Figure 7 the structure diagram of the friction piece 40 in the folding mechanism 130.

[0110] The two friction pieces 40 are fixedly connected to the two fixed portions 117 respectively. Each friction piece 40 comprises an assembly portion 43, a free portion 44, a friction portion 45, a first intermediate portion 46 and a second intermediate portion 47. The assembly portion 43 is fixedly connected to the fixed portion 117. The assembly portion 43 is provided with a second fixing hole 431 penetrating through the assembly portion 43 along the thickness direction of the assembly portion 43. In addition, the folding mechanism 130 further comprises two fixing pieces 70, each fixing piece 70 is arranged in the second fixing hole 431 and is fixedly connected to the hole wall of the first fixing hole 1172, so as to realize the assembly between each friction piece 40 and one fixed portion 117.

[0111] The free portion 44 is arranged spaced apart from the assembly portion 43 and is located at the bottom side of one limiting portion 1162. The friction portion 45 is located at the top side of the assembly portion 43 and the free portion 44. The first intermediate portion 46 is fixedly connected between the assembly portion 43 and the friction portion 45. The second intermediate portion 47 is fixedly connected between the friction portion 45 and the free portion 44. For example, the assembly portion 43, the free portion 44, the friction portion 45, the first intermediate portion 46 and the second intermediate portion 47 can be integrally formed, for example, the friction piece 40 can be an elastic plate.

[0112] In this embodiment, the assembly portion 43 of the first friction piece 41 is fixedly connected to the first fixed portion 1171, and the free portion 44 of the first friction piece 41 is located at the bottom side of the first limiting portion 1163. The assembly portion 43 of the second friction piece 42 is fixedly connected to the second fixed portion, and the free portion 44 of the second friction piece 42 is located at the bottom side of the second limiting portion 1164.

[0113] Referring to Figure 14 and Figure 15 , Figure 14 is Figure 3 a cross-sectional structural schematic diagram of the foldable device 100 in the foldable terminal 1000 shown in FIG. 1, where the key 31 is in the first position, Figure 15 is Figure 3 a cross-sectional structural schematic diagram of the foldable device 100 in the foldable terminal 1000 shown in FIG. 1, where the key 31 is in the second position.

[0114] When the key 31 is in the first position, along the Y-axis direction, the free part 44 of the first friction piece 41 is misaligned with the first support block 33, and the free part 44 of the second friction piece 42 is misaligned with the second support block 34. Among them, along the Y-axis direction, the free part 44 of the first friction piece 41 is arranged in a spaced manner with the support surface 322 of the first support block 33, and the free part 44 of the second friction piece 42 is arranged in a spaced manner with the support surface 322 of the second support block 34. At this time, the friction part 45 of the first friction piece 41 and the friction part 45 of the second friction piece 42 are both in a horizontal state relative to the base 10.

[0115] When the key 31 is in the second position, the free part 44 of the first friction piece 41 is located between the first limiting part 1163 and the first support block 33, and the first support block 33 abuts against the free part 44 of the first friction piece 41. The free part 44 of the second friction piece 42 is located between the second limiting part 1163 and the second support block 34, and the second support block 34 abuts against the free part 44 of the second friction piece 42. Among them, the free part 44 of the first friction piece 41 is located between the first limiting part 1163 and the support surface 322 of the first support block 33, and the support surface 322 of the first support block 33 abuts against the free part 44 of the first friction piece 41. The free part 44 of the second friction piece 42 is located between the second limiting part 1163 and the support surface 322 of the second support block 34, and the support surface 322 of the second support block 34 abuts against the free part 44 of the second friction piece 42. At this time, the friction part 45 of the first friction piece 41 and the friction part 45 of the second friction piece 42 are both in an inclined state relative to the base 10.

[0116] It can be understood that the first limiting part 1163 can limit the upward movement distance of the free part 44 of the first friction piece 41, and the second limiting part 1164 can limit the upward movement distance of the free part 44 of the second friction piece 42, so as to avoid that the two friction pieces 40 respectively deform upward under the abutment of the two support blocks 32 to affect the rotation of the two swing arms 50, and ensure the smoothness of the rotation of the two swing arms 50 relative to the base 10, which helps to improve the opening and closing feeling of the foldable terminal 1000 and improve the user's use experience.

[0117] Referring to Figure 8 andFigure 16 , Figure 16 is Figure 7 is a structural schematic view of the swing arm 50 in the foldable mechanism 130.

[0118] Both swing arms 50 are mounted in the assembly groove 111 and extend out of the assembly groove 111 through the avoidance notch 113. The swing arm 50 and the gear 61 of the synchronous assembly 60 are circumferentially limited by a plane, and the swing arm 50 can rotate relative to the base 10 following the gear 61 driven by the rotating shaft 20. The first swing arm 51 includes a first rotating part 511, a first sliding part 512, a first connecting part 513, and a first protruding part 514. The first rotating part 511 is sleeved on the first rotating shaft 21 and located on the top side of the first friction piece 41 and opposite to the friction part 45 of the first friction piece 41. The first connecting part 513 is connected between the first rotating part 511 and the first sliding part 512. The first protruding part 514 is arranged on the outer surface of the first rotating part 511 and surrounds the rotating center of the first rotating part 511. The first rotating part 511, the first sliding part 512, the first connecting part 513, and the first protruding part 514 can be integrally formed. It can be understood that the rotating center of the first rotating part 511 is the central axis of the first rotating shaft 21.

[0119] The first rotating part 511 includes a first sub-rotating part 515 and a second sub-rotating part 516. Specifically, the first sub-rotating part 515 and the second sub-rotating part 516 are both sleeved on the first rotating shaft 21. In the Y-axis direction, the first sub-rotating part 515 and the second sub-rotating part 516 are arranged apart from each other. The second sub-rotating part 516 has a first hinged surface 517, which is a surface facing the first sub-rotating part 515. The first hinged surface 517 includes a plurality of wave crests and a plurality of wave troughs, which are arranged alternately. For example, the first sub-rotating part 515 and the second sub-rotating part 516 are both substantially cylindrical. The first connecting part 513 is arranged through the avoidance notch 113. The first protruding part 514 is arranged on the outer surface of the first sub-rotating part 515 and surrounds the first sub-rotating part 515.

[0120] Please refer to Figure 13 and Figure 14 together. In the first swing arm 51, the first rotating part 511 is sleeved on the first rotating shaft 21, the first sliding part 512 is arranged through the first sliding hole 1401 and can slide relative to the first housing 110 in the first sliding hole 1401 to realize the sliding connection between the foldable mechanism 130 and the first housing 110, and the first connecting part 513 is arranged through the first avoidance notch 1131.

[0121] The second swing arm 52 comprises a second rotating part 521, a second sliding part 522, a second connecting part 523 and a second protruding part 524. The second rotating part 521 is sleeved on the second rotating shaft 22 and located on the top side of the second friction part 42 and opposite to the friction part 45 of the second friction part 42. The first sliding part 512 penetrates the second sliding hole 1501 and can slide in the second sliding hole 1501 relative to the second shell 120 to realize the sliding connection between the foldable mechanism 130 and the second shell 120. The second connecting part 523 is connected between the second rotating part 521 and the second sliding part 522 and penetrates the second avoiding gap 1132. The second protruding part 524 is arranged on the outer surface of the second rotating part 521 and surrounds the rotating center of the second rotating part 521. It should be noted that the related structures of the second swing arm 52 can be referred to the related description of the first swing arm 51, which will not be repeated here.

[0122] Please refer to Figure 17 , Figure 17 is Figure 15 the simplified structure diagram of the friction part 40 and the swing arm 50 of the foldable mechanism 130 in the foldable device 100 shown in FIG.

[0123] When the key 31 is in the first position S1, the friction parts 45 of the two friction parts 40 are in a horizontal state relative to the base 10. The distance between the friction part 45 of the first friction part 41 and the first rotating part 511 of the first swing arm 51 and the distance between the friction part 45 of the second friction part 42 and the second rotating part 521 of the second swing arm 52 are large. During the rotation of the two swing arms 50 relative to the base 10, when the foldable mechanism 130 is in the hovering angle range, the first protruding part 514 of the first swing arm 51 will not contact the friction part 45 of the first friction part 41, and the second protruding part 524 of the second swing arm 52 will not contact the friction part 45 of the second friction part 42. In other words, the friction parts 45 of the two friction parts 40 will not affect the rotation of the two swing arms 50 relative to the base 10. The rotation process of the two swing arms 50 relative to the base 10 is smooth, the opening and closing process of the foldable terminal 1000 is smooth, which helps to improve the user's experience.

[0124] When the key 31 is in the first position S1, the friction portions 45 of the friction members 40 are in an inclined state relative to the base 10, the distance between the friction portion 45 of the first friction member 41 and the first rotating portion 511 of the first swing arm 51 and the distance between the friction portion 45 of the second friction member 42 and the second rotating portion 521 of the second swing arm 52 are reduced, and in the process of the two swing arms 50 rotating relative to the base 10, when the foldable mechanism 130 is in the hovering angle range, the first protruding portion 514 of the first swing arm 51 and the friction portion 45 of the first friction member 41 rub against each other, and the second protruding portion 524 of the second swing arm 52 and the friction portion 45 of the second friction member 42 rub against each other, the friction force generated between the first protruding portion 514 of the first swing arm 51 and the friction portion 45 of the first friction member 41 enables the first swing arm 51 to maintain a certain angle, and the friction force generated between the second protruding portion 524 of the second swing arm 52 and the friction portion 45 of the second friction member 42 enables the second swing arm 52 to maintain a certain angle, so that the foldable terminal 1000 is in a half-expanded state, that is, the foldable terminal 1000 can hover. For example, the hovering angle range of the foldable mechanism 130 is greater than or equal to 45° and less than or equal to 125°, or the hovering angle range of the foldable mechanism 130 is greater than or equal to 60° and less than or equal to 120°.

[0125] Please refer to Figure 6 、 Figure 7 and Figure 18 , Figure 18 is Figure 7 the partial structure diagram of the damping assembly 80 in the foldable mechanism 130 shown in FIG.

[0126] In this embodiment, the foldable mechanism 130 includes a damping assembly 80, which is installed on the base 10, is sleeved on the two rotating shafts 20, and is rotationally connected to the base 10. Specifically, the damping assembly 80 is installed in the avoiding groove 112 and is located between the first support 12 and the second support 13. In the Y-axis direction, the damping assembly 80 is arranged at intervals from the synchronization assembly 60. The damping assembly 80 can be folded or unfolded relative to the base 10.

[0127] When the foldable mechanism 130 is in the folded state, the damping assembly 80 is in the folded state. When the foldable mechanism 130 is in the unfolded state, the damping assembly 80 is in the unfolded state. In the process of the foldable mechanism 130 switching from the folded state to the unfolded state, the damping assembly 80 switches from the folded state to the unfolded state. In the process of the foldable mechanism 130 switching from the unfolded state to the folded state, the damping assembly 80 switches from the unfolded state to the folded state.

[0128] It should be noted that the damping assembly 80 can provide a damping force. The user can obviously feel the damping force provided by the damping assembly 80 during the use of the foldable terminal 1000, such as when the foldable terminal 1000 is in the folded state or the unfolded state, and when the foldable terminal 1000 is switched between the folded state and the unfolded state. The user can experience a better hand feeling, thereby improving the user's experience.

[0129] The damping assembly 80 includes two swing arms 50, a damping bracket 81, two elastic members 82, and two spacers 83, which are located between the first sub-rotation part 515 and the second sub-rotation part 516 of the swing arm 50. The damping bracket 81 is sleeved on the two rotating shafts 20 and is hingedly connected with the first rotation part 511 of the two swing arms 50. The damping bracket 81 has two second hinge surfaces 811, which are both directed towards the second bracket 13 and are spaced apart from each other along the X-axis direction and are hingedly connected with the first hinge surface 517 of the two swing arms 50, respectively. The second hinge surface 811 includes a plurality of wave crests and a plurality of wave troughs, which are alternately arranged.

[0130] When the foldable mechanism 130 is switched from the folded state to the unfolded state, i.e., when the foldable terminal 1000 is switched from the folded state to the unfolded state, in each swing arm 50, the wave crest of the first hinge surface 517 of each swing arm 50 will enter the wave trough of one second hinge surface 811, and at the same time, the wave crest of each second hinge surface 811 will also enter the wave trough of the first hinge surface 517 of one swing arm 50. At this time, the damping force generated by the rotation of the two swing arms 50 is small, and the user can experience the hand feeling of the foldable terminal 1000 being unfolded to the position.

[0131] The two elastic members 82 are located on the side of the damping bracket 81 away from the first hinge surface 517 and are sleeved on the two rotating shafts 20, respectively. The two elastic members 82 are a first elastic member 84 and a second elastic member 85, respectively. The first elastic member 84 is sleeved on the first rotating shaft 21, and the two ends of the first elastic member 84 abut against the damping bracket 81 and the first swing arm 51, respectively. The second elastic member 85 is sleeved on the second rotating shaft 22, and the two ends of the second elastic member 85 abut against the damping bracket 81 and the second swing arm 52, respectively. The elastic member 82 can be a spring, for example. The two spacers 83 are located on the side of the two elastic members 82 away from the damping bracket 81 and are sleeved on the two rotating shafts 20, respectively, and are clamped between one elastic member 82 and the second sub-rotation part 516 of one swing arm 50, respectively.

[0132] It should be noted that in the embodiment, the two swing arms 50 are the damping swing arms of the foldable mechanism 130, and a new swing arm does not need to be added to realize the hovering function of the foldable mechanism 130, which helps to simplify the structure of the foldable mechanism 130. In some other embodiments, the two swing arms 50 can also not be the damping swing arms of the foldable mechanism 130, but other swing arms that can be connected with the first shell 110 and the second shell 120, and the application does not make specific limitations thereto.

[0133] Please refer to Figure 11 、 Figure 12 、 Figure 14 and Figure 15 , in the process of using the foldable terminal 1000 shown in the embodiment, if the hovering function is not needed, the key 31 can be dialed to the first position, the support surfaces 322 of the two support blocks 32 are respectively exposed relative to the two limiting portions 1162, and when the foldable terminal 1000 is opened and closed, the friction portions 45 of the two friction members 40 are not in contact with the first protruding portions 514 of the two swing arms 50, that is, the friction portions 45 of the two friction members 40 do not interfere with the rotation of the two swing arms 50, and the foldable terminal 1000 can be opened and closed smoothly.

[0134] When the user needs to use the hovering function, the key 31 can be dialed to the second position, and the support surfaces 322 of the two support blocks 32 can abut against the free portions 44 of the two friction members 40, so that the friction portions 45 of the two friction members 40 are inclined relative to the base 10, thereby reducing the distance between the friction portions 45 of the two friction members 40 and the first protruding portions 514 of the two swing arms 50. When the foldable terminal 1000 is opened and closed to the hovering angle range, the friction portions 45 of the two friction members 40 can be in contact with the first protruding portions 514 of the two swing arms 50 to generate friction, and the friction generated by the friction portions 45 and the first protruding portions 514 can enable the two swing arms 50 to maintain a certain angle, thereby achieving the hovering effect.

[0135] In the foldable mechanism 130 of the foldable terminal 1000 shown in the embodiment, the hovering function of the foldable terminal 1000 is realized by the structural cooperation between the key 31, the support block 32, the first friction member 41 and the first protruding portion 514 of the first swing arm 51, and the structural cooperation between the second friction member 42 and the second protruding portion 524 of the second swing arm 52. The foldable mechanism 130 has a simple structure, a small volume and a low cost, and the switching operation of the user when using the hovering function and not using the hovering function is simple, the hovering function switching can be quickly realized by dialing the key 31, which helps to improve the user experience.

[0136] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application; in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A foldable mechanism, characterized by, The first friction piece is arranged on the inner side of the base, the first swing arm comprises a first rotating part and a first protruding part, the first rotating part is rotatably connected to the base and is arranged on the top side of the first friction piece and opposite to the first friction piece, the first protruding part is arranged on the surface of the first rotating part and surrounds the rotating center of the first rotating part, and the button is arranged on the base and is movable relative to the base between a first position and a second position. When the foldable mechanism is in the hovering angle range and the button is in the first position, the first protruding part is arranged in a spaced manner relative to the first friction piece. When the foldable mechanism is in the hovering angle range and the button is in the second position, the first protruding part is arranged in a frictional manner relative to the first friction piece.

2. The foldable mechanism of claim 1, wherein, The first friction piece comprises an assembly part, a friction part and a free part, the assembly part is arranged on the base, the friction part is fixedly connected to one side of the assembly part and is arranged opposite to the first rotating part, and the free part is fixedly connected to the side of the friction part away from the assembly part. The base is provided with a sliding hole, the sliding hole is communicated with the inner side and the outer side of the base and is arranged opposite to the button. The foldable mechanism further comprises a supporting block, the supporting block is arranged in the sliding hole and is fixedly connected to the button and is movable relative to the base under the driving of the button. When the button is in the first position, the supporting block is arranged in a dislocated manner relative to the free part and the friction part is arranged in a spaced manner relative to the first protruding part. When the foldable mechanism is in the hovering angle range and the button is in the second position, the supporting block abuts against the free part and the friction part is arranged in a frictional manner relative to the first protruding part.

3. The foldable mechanism of claim 2, wherein, The supporting block comprises a supporting surface away from the button, the supporting block is provided with a stop part, the stop part is arranged on the side of the supporting block away from the button and protrudes relative to the supporting surface. When the button is in the second position, the supporting surface abuts against the free part and the stop part is arranged on the side of the free part towards the first position.

4. The foldable mechanism of claim 3, wherein, The supporting block further comprises a transition surface, the transition surface is connected to the supporting surface, the distance between the transition surface and the supporting surface becomes larger and larger in the direction from the first position to the second position, and when the button is in the first position, the transition surface is arranged on the side of the supporting surface towards the free part.

5. The foldable mechanism of any one of claims 2 to 4, wherein, The base is provided with a limiting part, the limiting part is arranged on the inner side of the base, and the limiting part comprises a limiting part, the limiting part is arranged on the top side of the free part and is arranged opposite to the free part.

6. The foldable mechanism of any one of claims 1 to 5, wherein, The foldable mechanism further comprises a second swing arm, the second swing arm comprises a second rotating part, the second rotating part is rotatably connected to the base, when the foldable mechanism is switched between the unfolded state and the folded state, the rotating direction of the first swing arm relative to the base is a first direction, the rotating direction of the second swing arm relative to the base is a second direction, and the second direction is opposite to the first direction.

7. The foldable mechanism of claim 6, wherein, The foldable mechanism further comprises a second friction member, which is installed on the inner side of the base and located at the bottom side of the second rotating part and opposite to the second rotating part, and the second swing arm further comprises a second protruding part, which is arranged on the surface of the second rotating part and surrounds the rotating center of the second rotating part; When the foldable mechanism is in the hovering angle range and the button is in the first position, the second protruding part is spaced apart from the second friction member; When the foldable mechanism is in the hovering angle range and the button is in the second position, the second protruding part is in friction with the second friction member.

8. The foldable mechanism of claim 6 or 7, wherein, The foldable mechanism further comprises a synchronous assembly, which is installed on the base and used to drive the first swing arm and the second swing arm to synchronously rotate relative to the base.

9. The foldable mechanism of any one of claims 6 to 8, wherein, The foldable mechanism comprises a first rotating shaft, a second rotating shaft, a first elastic member, a second elastic member, a damping support, the first swing arm and the second swing arm, the first rotating shaft, the second rotating shaft, the first elastic member, the second elastic member and the damping support are all installed on the inner side of the base, the first rotating shaft and the second rotating shaft are spaced apart and opposite to each other, the damping support is sleeved on the first rotating shaft and the second rotating shaft, the first elastic member and the second elastic member are located on the same side of the damping support, the first elastic member is sleeved on the first rotating shaft, the second elastic member is sleeved on the second rotating shaft, the first swing arm is sleeved on the first rotating shaft and abuts against opposite ends of the first elastic member and is hinged to the damping support, and the second swing arm is sleeved on the second rotating shaft and abuts against opposite ends of the second elastic member and is hinged to the damping support.

10. The foldable mechanism of any one of claims 1 to 9, wherein, The button moves along the Y-axis direction between the first position and the second position relative to the base, and the Y-axis direction is the length direction of the base.

11. The foldable mechanism according to any one of claims 1 to 10, wherein, The base is provided with a mounting groove, the opening of the mounting groove is located on the bottom surface of the base, and the button is installed in the mounting groove and can move relative to the base in the mounting groove.

12. The foldable mechanism of any one of claims 1 to 11, wherein, The hovering angle range is greater than or equal to 45° and less than or equal to 125°. 13.A foldable terminal, comprising: The foldable mechanism comprises a first shell, a second shell and the foldable mechanism as claimed in any one of claims 1 to 12, and the foldable mechanism is connected between the first shell and the second shell.

Images