Folding assembly and terminal equipment

Abstract

The embodiment of the invention discloses a folding assembly and terminal equipment, and relates to the field of folding structures. The size of the folding assembly can be reduced on the basis that the structural strength of the folding assembly is not reduced. According to the specific scheme, the folding assembly comprises a rotating shaft, a first support, a second support, a first connecting rod and a first rotating arm. The rotating shaft is provided with an accommodating groove; one end of the first connecting rod is rotationally connected with the first support, one end of the first rotating arm is slidably connected with the second support, and the other end of the first connecting rod and the other end of the second connecting rod are located in the containing groove and rotationally connected with the containing groove. In some embodiments, the other end of the first connecting rod is rotationally connected with the other end of the second connecting rod. The first connecting rod and the first support extend into the containing groove which penetrates through the rotating shaft and is provided with a large inner cavity, and the space occupied by the first connecting rod and the first support is reduced. The contact areas of the first connecting rod, the first support and the rotating shaft are large, and the connecting strength is high. There is no need to arrange more reinforcers, so that the folding assembly is miniaturized.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of folding structures, and in particular to a folding component and a terminal device. Background Art

[0002] With the continuous development of display technology, foldable devices (such as foldable mobile phones) have gradually become a development trend of future mobile electronic products. When the terminal device is unfolded, it can obtain a larger display area to improve the viewing effect. When the terminal device is folded, it can obtain a smaller volume, which is convenient for users to carry.

[0003] Generally, a terminal device includes a flexible screen and a folding component for supporting the flexible screen; the performance of the folding component directly affects the use of the terminal device. For example, if the folding component is large in size, the terminal device will be large in size and occupy a large space. Summary of the invention

[0004] The embodiments of the present application provide a folding component and a terminal device, aiming to reduce the volume occupied by the folding component.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions. In the first aspect, the embodiment of the present application provides a folding assembly. The folding assembly includes a rotating shaft, a first bracket, a second bracket, a first connecting rod and a first rotating arm. The rotating shaft is provided with a first receiving groove; the first bracket and the second bracket are respectively arranged on opposite sides of the rotating shaft. The first rotating arm includes a first end and a second end arranged oppositely, the first end is slidably connected with the second bracket in a direction perpendicular to the axial direction of the rotating shaft; the second end is located in the first receiving groove and is rotatably connected with the rotating shaft. The first connecting rod includes a third end and a fourth end arranged oppositely, the third end is rotatably connected with an end of the first bracket close to the rotating shaft, and the fourth end is located in the first receiving groove and is rotatably connected with the second end. Thus, the first connecting rod can rotate relative to the bracket and the rotating shaft, and the first rotating arm can rotate relative to the rotating shaft and slide with the second bracket in a direction perpendicular to the axial direction of the rotating shaft. During the rotation of the first rotating arm, the position of the first end on the second bracket can change with the sliding of the first end, so that the angle between the second bracket and the rotating shaft is adjusted, so that the folding assembly can be unfolded or folded. In addition, the first bracket and the second bracket are located on both sides of the rotating shaft, and the fourth end and the second end are both located in the first receiving groove and are rotatably connected to each other, then the first receiving groove extends from the side of the rotating shaft facing the first bracket to the side of the rotating shaft facing the second bracket. When the diameter of the rotating shaft is the same, the inner cavity of the first receiving groove that accommodates the fourth end and the second end is larger, and the contact area between the fourth end and the second end and the rotating shaft is large. Similarly, the connection strength between the second end and the rotating shaft is relatively large, and the mechanical strength between the rotating shaft, the first connecting rod and the first rotating arm is relatively high. The folding assembly does not need to be provided with more reinforcements, so that the folding assembly can be miniaturized. Alternatively, on the basis of the same connection strength and mechanical properties, the diameter of the rotating shaft can be reduced to miniaturize the folding assembly.

[0006] In addition, the fourth end is rotatably connected to the second end. When the third end of the first connecting rod rotates relative to the first bracket, the rotation torque is transmitted to the fourth end to make the fourth end and the second end rotate relative to each other, and when the rotation torque is transmitted to the first end, the first end slides relative to the second bracket, thereby realizing secondary transmission. Similarly, when the first end of the first rotating arm slides relative to the second bracket, the second end rotates relative to the fourth end of the first connecting rod, and when the rotation torque is transmitted to the third end of the first connecting rod, the third end rotates relative to the first bracket, thereby realizing secondary transmission.

[0007] In combination with the first aspect, in some achievable manners, the second end is rotatably connected to the first receiving groove. Thus, the first rotating arm and the rotating shaft are rotated by the rotatable connection between the second end and the first receiving groove, and the first rotating arm and the rotating shaft do not need to be provided with other structures for rotating the first rotating arm and the rotating shaft, which is conducive to miniaturization of the folding assembly while reducing the number of parts of the folding assembly, and reducing manufacturing costs and assembly costs.

[0008] In combination with the first aspect, in some achievable ways, the first rotating arm includes an arc-shaped portion and a sliding portion connected to each other, the arc-shaped portion is coaxial with the rotating shaft, the arc-shaped portion is rotatably connected to the first receiving groove as the second end, and the sliding portion is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft as the first end. Thus, the second end and the rotating shaft can be rotated relative to each other through the rotation connection of the sliding portion and the first receiving groove. The second end and the rotating shaft can be rotationally connected without a rigid shaft (such as a pin), providing a margin for the assembly of the second end and the rotating shaft, and even if the assembly accuracy of the second end and the rotating shaft is low, the second end and the first receiving groove can also rotate relative to each other.

[0009] In combination with the first aspect, in some achievable manners, the arcuate portion is provided with a mounting groove penetrating the inner wall and the outer wall of the arcuate portion, the fourth end is located in the mounting groove and is rotatably connected to the mounting groove. The arcuate portion and the fourth end are rotatably connected by the mounting groove and the fourth end.

[0010] In combination with the first aspect, in some achievable ways, the axis of the rotational connection between the fourth end and the mounting groove is parallel to the axis of the rotating shaft. Because the arc-shaped portion and the rotating shaft are coaxial. Then the axis of the rotational connection between the fourth end and the mounting groove is parallel to the axis of the arc-shaped portion. Thus, when the folding assembly is adjusted from the unfolded state to the folded state, the fourth end rotates relative to the mounting groove, and the arc-shaped portion rotates relative to the first accommodating groove, the first rotating arm and the first connecting rod form a cavity, which is used to accommodate the bent portion of the flexible screen.

[0011] In combination with the first aspect, in some achievable manners, the rotating shaft includes a first shaft body and a shaft cover, the first shaft body and the shaft cover are connected, the first shaft body and the shaft cover together form the first receiving groove, and the fourth end and the second end are both located between the first shaft body and the shaft cover. Therefore, in the process of manufacturing the rotating shaft, the first shaft body and the shaft cover can be manufactured separately, and then the first shaft body and the shaft cover are connected to form the first receiving groove, so that the manufacturing process is simpler.

[0012] In combination with the first aspect, in some achievable embodiments, the folding assembly further includes: a first connecting member and a second connecting member; one end of the first connecting member is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; one end of the second connecting member is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft, and one end of the first connecting member away from the first bracket is engaged with one end of the second connecting member away from the second bracket. Thus, when the folding assembly is adjusted between the unfolded state and the folded state, the first connecting member slides relative to the first bracket, and the second connecting member slides synchronously relative to the second bracket. The angular velocity of the first bracket and the second bracket relative to the rotating shaft is equal. The flexible screen covering the first bracket and the flexible screen covering the second bracket are synchronously unfolded or folded.

[0013] In combination with the first aspect, in some achievable manners, the rotating shaft is provided with a second accommodating groove, the second accommodating groove is spaced apart from the first accommodating groove; the end of the first connecting member away from the first bracket and the end of the second connecting member away from the second bracket are both located in the second accommodating groove and are both rotatably connected to the rotating shaft. Thus, the end of the first connecting member away from the first bracket and the end of the second connecting member away from the second bracket are both accommodated in the rotating shaft, reducing the space occupied by the first connecting member, the second connecting member and the rotating shaft.

[0014] In combination with the first aspect, in some achievable manners, the folding assembly further comprises: a swing arm, one end of which is rotatably connected to the rotating shaft, and the other end of which is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; the first connecting rod and the swing arm are spaced apart along the axial direction of the rotating shaft. Thus, the setting of the swing arm can increase the force point between the first bracket and the rotating shaft, and increase the structural strength of the first bracket and the rotating shaft.

[0015] In combination with the first aspect, in some achievable manners, the folding assembly further comprises: a swing arm, one end of which is rotatably connected to the rotating shaft, and the other end of which is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft; the first rotating arm and the swing arm are spaced apart along the axial direction of the rotating shaft. Thus, the swing arm can increase the fulcrum of the second bracket and the rotating shaft, and increase the structural strength of the second bracket and the rotating shaft.

[0016] In combination with the first aspect, in some achievable ways, the folding assembly further includes: a second connecting rod and a second rotating arm; the rotating shaft further includes a third receiving groove; the second connecting rod and the first rotating arm are arranged at intervals along the axial direction of the rotating shaft. One end of the second rotating arm is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; the other end is located in the third receiving groove and is connected to the rotating shaft of the third receiving groove; one end of the second connecting rod is rotatably connected to an end of the second bracket close to the rotating shaft, and the other end is located in the third receiving groove and is rotatably connected to an end of the second rotating arm away from the first bracket. Thus, the end of the first rotating arm away from the rotating shaft is slidably connected to the second bracket. In other words, the installation position of the second connecting rod, the installation position of the first connecting rod, the installation position of the first rotating arm and the installation position of the second rotating arm are centrally symmetrically distributed. This is conducive to balancing the force of the first bracket on the rotating shaft and the force of the second bracket on the rotating shaft, so that the force on the rotating shaft is stable and the structural stability of the folding assembly is increased.

[0017] In combination with the first aspect, in some practicable embodiments, one end of the second rotating arm facing away from the first bracket is rotatably connected to the third accommodating groove.

[0018] In combination with the first aspect, in some feasible embodiments, the second pivot arm includes an arc portion and a sliding portion connected to each other, the arc portion is coaxial with the rotating shaft, the arc portion is rotationally connected to the third accommodating groove, and the sliding portion is slidingly connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft.

[0019] In combination with the first aspect, in some feasible embodiments, the arcuate portion is provided with a mounting groove penetrating the inner wall and the outer wall of the arcuate portion, and the end of the second rotating arm facing away from the first bracket is located in the mounting groove and is rotatably connected to the mounting groove.

[0020] In combination with the first aspect, in some practicable embodiments, an axis of the end of the second rotating arm facing away from the first bracket and rotatably connected to the mounting groove is parallel to the axis of the rotating shaft.

[0021] In combination with the first aspect, in some achievable embodiments, the folding assembly further includes: a door panel. The door panel includes a door body, a first rotating portion, and a second rotating portion, the first rotating portion and the second rotating portion are both connected to the door body, the first rotating portion is rotationally connected to the first bracket, and the second rotating portion is rotationally connected to the rotating shaft. Thus, the rotating shaft and the first bracket can both rotate relative to the door panel, and when the folding assembly is in a folded state, the rotating shaft, the first bracket, and the door panel jointly form a cavity for accommodating the bent portion of the flexible screen.

[0022] In combination with the first aspect, in some achievable ways, the first bracket includes a frame body and a third rotating part connected to each other, and the third end is rotatably connected to the frame body. The first rotating part is provided with an arc cavity, the axis of which is located on the side of the first rotating part facing the door body, and the third rotating part is an arc block, which is rotatably connected to the arc cavity. Alternatively, the third rotating part is provided with an arc cavity, the first rotating part is an arc block, the axis of which is located on the side of the first rotating part facing the door body, and the arc block is rotatably connected to the arc cavity.

[0023] Therefore, when the first bracket and the rotating shaft rotate relatively, the arc block slides in the arc cavity to make the first door panel rotate relative to the first bracket so that the folding assembly is folded or unfolded.

[0024] In combination with the first aspect, in some achievable ways, the rotating shaft includes a second shaft body and a fourth rotating part connected to each other, and the first accommodating groove is located on the second shaft body. The first rotating part is provided with an arc-shaped cavity, the axis of which is located on the side of the first rotating part facing the door body, and the fourth rotating part is an arc-shaped block, which is rotationally connected to the arc-shaped cavity. Alternatively, the fourth rotating part is provided with an arc-shaped cavity, the first rotating part is an arc-shaped block, the axis of which is located on the side of the first rotating part facing the door body, and the arc-shaped block is rotationally connected to the arc-shaped cavity. Thus, when the first bracket and the rotating shaft rotate relative to each other, the arc-shaped block slides in the arc-shaped cavity to rotate the first door panel relative to the rotating shaft so that the folding assembly is folded or unfolded.

[0025] In a second aspect, an embodiment of the present application provides a terminal device, the terminal device comprising: a flexible screen and any one of the folding components provided in the first aspect; the flexible screen covers the first bracket, the second bracket and the same side of the rotating shaft. Because the folding component has the advantages of miniaturization and reliable structure. The terminal device including the folding component also has the advantages of small size and good mechanical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The figure is a schematic diagram of the structure of a terminal device.

[0027] Figure 2 This is a schematic diagram of the terminal device.

[0028] Figure 3a A schematic diagram of the structure of the folding assembly provided in an embodiment of the present application in a folded state.

[0029] Figure 3b A schematic diagram of the structure of the folding assembly provided in an embodiment of the present application in an unfolded state.

[0030] Figure 4 A schematic diagram of the exploded structure of the folding assembly provided in an embodiment of the present application.

[0031] Figure 5 for Figure 3a Schematic diagram of the cross section at BB in the middle.

[0032] Figure 6 A schematic diagram of the exploded structure of the rotating shaft, the first connecting rod and the first rotating arm provided in an embodiment of the present application.

[0033] Figure 7 A schematic diagram of the structure of the first bracket, the second bracket and the rotating shaft provided in an embodiment of the present application.

[0034] Figure 8a for Figure 3b Schematic diagram of the cross section at DD in the middle.

[0035] Figure 8b It is a schematic diagram of the structure of the first connecting member and the second connecting member.

[0036] Fig. 9 A schematic structural diagram of the second swing arm provided in an embodiment of the present application.

[0037] Fig.10 A schematic structural diagram of a first door panel, a rotating shaft and a first bracket provided in an embodiment of the present application.

[0038] Fig.11 for Figure 3b Schematic diagram of the structure of the EE section.

[0039] In the figure: 10-terminal device; 20-flexible screen; 100-folding component; 101-first pin; 102-second pin; 103-third pin; 104-fourth pin; 105-first tooth; 106-second tooth; 110-first bracket; 111-frame; 112-third rotating part; 113-arc cavity; 120-second bracket; 121-first slide rail; 122-second slide rail; 123-third slide rail; 130-rotating shaft; 131-first receiving groove; 132-shaft cover; 133-first shaft body; 136-third receiving groove; 137-second receiving groove; 138-cover plate; 140-first connecting rod; 141-third end; 142-third Four ends; 150-first pivot arm; 151-first end; 152-second end; 153-arc-shaped portion; 154-sliding portion; 155-installation groove; 156-slide rod; 160-second connecting rod; 170-second pivot arm; 181-first connecting member; 182-second connecting member; 191-first swing arm; 192-second swing arm; 193-bump; 194-groove structure; 210-first middle frame; 220-second middle frame; 230-first door panel; 231-door body; 232-first rotating portion; 233-second rotating portion; 234-second shaft; 235-fourth rotating portion; 240-second door panel; 250-first auxiliary frame; 260-second auxiliary frame. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0041] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0042] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0043] The present application provides a terminal device, which may be, for example, a mobile phone, a tablet computer (pad), a personal digital assistant (PDA), a television, etc. For the convenience of description, the following description takes the mobile phone as an example of the terminal device.

[0044] Figure 1 FIG. 1 is a schematic diagram of the structure of a terminal device 10. Figure 1 The terminal device 10 includes a flexible screen 20 and a folding assembly 100. The flexible screen 20 is connected to the folding assembly 100, and the folding assembly 100 is used to support the flexible screen 20.

[0045] Wherein, the flexible screen 20 is used to display images. In some embodiments of the present application, the flexible screen 20 is a multilayer structure. The flexible screen 20, for example, includes a touch panel (TP) module, a liquid crystal display (LCD) module and a backlight unit (BLU). Alternatively, in other embodiments of the present application, the flexible screen 20 may be an organic light emitting diode (OLED) display. In some other embodiments of the present application, the flexible screen 20 may be an active matrix organic light emitting diode (AMOLED) display.

[0046] Figure 2 is a schematic diagram of an exploded view of the terminal device 10. Figure 2 The terminal device 10 includes a folding component 100 and a flexible screen 20 , and the flexible screen 20 covers one side of the folding component 100 .

[0047] Figure 2In the example of FIG. 1 , the folding assembly 100 includes a first bracket 110, a second bracket 120 and a rotating shaft 130, and the first bracket 110 and the second bracket 120 are respectively arranged on both sides of the rotating shaft 130. The first bracket 110 is rotatably connected to the rotating shaft 130, and the second bracket 120 is rotatably connected to the rotating shaft 130. The first bracket 110 and the second bracket 120 can both rotate around the rotating shaft 130 so that the folding assembly 100 has a folded state and an unfolded state. For the convenience of description, the axis extension direction of the rotating shaft 130 is defined as the x direction.

[0048] In some embodiments, the folding assembly 100 further includes a first middle frame 210 and a second middle frame 220, the first middle frame 210 is connected to the first bracket 110, and the second middle frame 220 is connected to the second bracket 120. Exemplarily, the first middle frame 210 and the first bracket 110 are connected by bolts, buckles, adhesive layers or welding layers. Similarly, the second middle frame 220 and the second bracket 120 can also be connected by bolts, buckles, adhesive layers or welding layers.

[0049] Exemplarily, one side of the first middle frame 210 is connected to the flexible screen 20, for example, one side of the first middle frame 210 is bonded to the flexible screen 20 via a glue layer. Similarly, one side of the second middle frame 220 is connected to the flexible screen 20, for example, one side of the second middle frame 220 is bonded to the flexible screen 20 via a glue layer.

[0050] The embodiment of the present application does not limit the folding type of the terminal device 10. In some embodiments, the terminal device 10 is an inner folding structure, that is, when the terminal device 10 is in a folded state, the flexible screen 20 is located between the first middle frame 210 and the second middle frame 220. In other embodiments, the terminal device 10 is an outer folding structure, that is, when the terminal device 10 is in a folded state, the first middle frame 210 and the second middle frame 220 are both located between the opposite ends of the flexible screen 20. In the embodiment of the present application, the terminal device 10 is described as an outer folding structure as an example.

[0051] During the adjustment of the folding assembly 100 between the folded state and the unfolded state, the angle between the surface of the first middle frame 210 facing the flexible screen 20 and the surface of the second middle frame 220 facing the flexible screen 20 will change accordingly. When the folding assembly 100 is in the unfolded state, the angle between the surface of the first middle frame 210 facing the flexible screen 20 and the surface of the second middle frame 220 facing the flexible screen 20 can be -10° to 10°, for example, ±10°, ±9°, ±8°, ±7°, ±6°, ±5°, ±4°, ±3°, ±2°, ±1° or 0°, etc. When the folding assembly 100 is in a folded state, the angle between the surface of the first middle frame 210 facing the flexible screen 20 and the surface of the second middle frame 220 facing the flexible screen 20 can be 170° to 190°, for example, 170°, 172°, 175°, 178°, 179°, 180°, 181°, 182°, 185°, 188° or 190°. The opening of the angle between the surface of the first middle frame 210 facing the flexible screen 20 and the surface of the second middle frame 220 facing the flexible screen 20 faces the flexible screen 20.

[0052] Figure 3a This is a schematic structural diagram of the folding assembly 100 provided in an embodiment of the present application in a folded state. Figure 3b This is a schematic diagram of the structure of the folding assembly 100 provided in the embodiment of the present application in the unfolded state. Figure 3a and Figure 3b When the folding assembly 100 is adjusted from the unfolded state to the folded state, the first bracket 110 and the second bracket 120 both rotate relative to the rotation axis 130, and the distance between the end of the first bracket 110 away from the rotation axis 130 and the end of the second bracket 120 away from the rotation axis 130 gradually decreases. Conversely, when the folding assembly 100 is adjusted from the folded state to the unfolded state, the first bracket 110 and the second bracket 120 both rotate relative to the rotation axis 130, and the distance between the end of the first bracket 110 away from the rotation axis 130 and the end of the second bracket 120 away from the rotation axis 130 gradually increases.

[0053] Figure 4 This is a schematic diagram of the exploded structure of the folding assembly 100 provided in the embodiment of the present application. Figure 4The folding assembly 100 further includes a first connecting rod 140 and a first rotating arm 150. The opposite ends of the first connecting rod 140 are connected to the first bracket 110 and the first rotating arm 150, respectively. The opposite ends of the first rotating arm 150 are connected to the second bracket 120 and the rotating shaft 130, respectively. When the folding assembly 100 is adjusted from the unfolded state to the folded state, the opposite ends of the first connecting rod 140 rotate relative to the first bracket 110 and the first rotating arm 150, respectively. One end of the first rotating arm 150 rotates relative to the rotating shaft 130, and the other end of the first rotating arm 150 slides relative to the second bracket 120. During the sliding process of the first rotating arm 150 relative to the second bracket 120, the end of the first bracket 110 away from the rotating shaft 130 and the end of the second bracket 120 away from the rotating shaft 130 gradually approach each other.

[0054] Figure 5 for Figure 3a Schematic diagram of the cross section at BB. Figure 5 , the rotating shaft 130 is provided with a first receiving groove 131. The first rotating arm 150 includes two oppositely arranged ends, namely a first end 151 and a second end 152, and the first end 151 is slidably connected to the second bracket 120 in a direction perpendicular to the x direction. The second end 152 is located in the first receiving groove 131 and is rotatably connected to the rotating shaft 130. The first connecting rod 140 includes two oppositely arranged ends, namely a third end 141 and a fourth end 142, and the third end 141 is rotatably connected to an end of the first bracket 110 close to the rotating shaft 130, and the fourth end 142 is located in the first receiving groove 131 and is rotatably connected to the second end 152.

[0055] The first connecting rod 140 can rotate relative to the first bracket 110 and the first rotating arm 150, and the first rotating arm 150 can rotate relative to the rotating shaft 130 and slide with the second bracket 120 in a direction perpendicular to the x direction. During the rotation of the first rotating arm 150, the position of the first end 151 on the second bracket 120 can change with the sliding of the first end 151, so that the angle between the second bracket 120 and the rotating shaft 130 is adjusted, so that the folding assembly 100 can be unfolded or folded. In addition, the first bracket 110 and the second bracket 120 are located on both sides of the rotating shaft 130, and the fourth end 142 and the second end 152 are both located in the first receiving groove 131 and are rotatably connected to each other, then the first receiving groove 131 extends from the side of the rotating shaft 130 facing the first bracket 110 to the side of the rotating shaft 130 facing the second bracket 120. When the diameter of the rotating shaft 130 is the same, the inner cavity of the first receiving groove 131 that accommodates the fourth end 142 and the second end 152 is larger, the contact area between the fourth end 142 and the second end 152 and the rotating shaft 130 is large, and the connection strength between the fourth end 142 and the rotating shaft 130 is high. Similarly, the connection strength between the second end 152 and the rotating shaft 130 is relatively large, and the mechanical strength between the rotating shaft 130, the first connecting rod 140 and the first rotating arm 150 is relatively high. In addition, the fourth end 142 and the second end 152 are accommodated in the rotating shaft 130, reducing the occupied space. The folding assembly 100 does not need to be provided with a large number of reinforcement members, so that the folding assembly 100 is miniaturized. Alternatively, on the basis of the same connection strength and mechanical properties, the diameter of the rotating shaft 130 can be reduced to miniaturize the folding assembly 100.

[0056] The first end 151 is slidably connected to the second bracket 120 in a direction perpendicular to the x-direction. In other words, the first end 151 is slidably connected to the second bracket 120, and the sliding direction is perpendicular to the x-direction. The aforementioned perpendicularity is not limited to the angle between the sliding direction and the x-direction being 90°. For example, the angle between the sliding direction and the x-direction can be 85° to 95°. For example, it can be 85°, 87°, 88°, 89°, 90°, 91°, 92°, 93° or 95°, etc.

[0057] The embodiment of the present application does not limit the manner in which the third end 141 and the first bracket 110 are rotatably connected. For example, the folding assembly 100 further includes a first pin shaft 101, and the third end 141 and the first bracket 110 are rotatably connected via the first pin shaft 101. Exemplarily, a sleeve is provided on one side of the first bracket 110 close to the rotating shaft 130, and the first pin shaft 101 is located in the sleeve and connected to the sleeve. The third end 141 is sleeved on the first pin shaft 101 and is rotatably connected to the first pin shaft 101.

[0058] In addition, the fourth end 142 of the first connecting rod 140 is rotatably connected to the second end 152 of the first rotating arm 150. In this way, when the third end 141 of the first connecting rod 140 rotates relative to the first bracket 110, the torque of the rotation is transmitted to the fourth end 142, so that the fourth end 142 of the first connecting rod 140 and the second end 152 of the first rotating arm 150 rotate relative to each other, and when the torque of the rotation is transmitted to the first end 151 of the first rotating arm 150, the first end 151 slides relative to the second bracket 120, and the secondary transmission can be realized. Similarly, when the first end 151 of the first rotating arm 150 slides relative to the second bracket 120, the sliding causes the second end 152 of the first rotating arm 150 to rotate relative to the fourth end 142 of the first connecting rod 140, and when the torque of the rotation is transmitted to the third end 141 of the first connecting rod 140, the third end 141 of the first connecting rod 140 rotates relative to the first bracket 110, and the secondary transmission is realized. In addition, the fourth end 142 of the first connecting rod 140 is rotatably connected to the second end 152, and the third end 141 is rotatably connected to the first bracket 110, and the rigid first connecting rod 140 constrains the relative motion trajectory of the second end 152 and the first bracket 110. Similarly, the rigid first rotating arm 150 constrains the relative motion trajectory of the fourth end 142 and the second bracket 120, so that the relative motion trajectory of the first bracket 110 and the second bracket 120 is constrained.

[0059] The embodiment of the present application does not limit the manner in which the fourth end 142 and the second end 152 are rotatably connected. For example, Figure 5 In the embodiment, the folding assembly 100 further includes a second pin shaft 102 , and the fourth end 142 and the second end 152 are rotatably connected via the second pin shaft 102 .

[0060] In some embodiments of the present application, the second end 152 of the first rotating arm 150 is rotatably connected to the first receiving groove 131. In this way, the first rotating arm 150 and the rotating shaft 130 are rotated by the second end 152 and the first receiving groove 131. The first rotating arm 150 and the rotating shaft 130 may not be provided with other structures for rotating the first rotating arm 150 and the rotating shaft 130, which is conducive to miniaturization of the folding assembly 100 while reducing the number of parts of the folding assembly 100, and reducing manufacturing costs and assembly costs.

[0061] Figure 6 This is a schematic diagram of the exploded structure of the rotating shaft 130, the first connecting rod 140 and the first rotating arm 150 provided in an embodiment of the present application. Figure 6 In the embodiment, the rotating shaft 130 includes a first shaft body 133 and a shaft cover 132, and the first shaft body 133 and the shaft cover 132 are connected. The first shaft body 133 and the shaft cover 132 together form a first receiving groove 131. In this way, during the manufacturing process, the first shaft body 133 and the shaft cover 132 can be manufactured separately, and then the first shaft body 133 and the shaft cover 132 are connected to form the first receiving groove 131, so that the manufacturing process is simpler.

[0062] Please return to Figure 5 , the second end 152 and the fourth end 142 are both located between the first shaft body 133 and the shaft cover 132. In this way, the first shaft body 133 and the shaft cover 132 can constrain the second end 152 and the fourth end 142, preventing the second end 152 from being separated from the first receiving groove 131 during the rotation process relative to the rotating shaft 130, and also preventing the fourth end 142 from being separated from the first receiving groove 131 during the rotation process relative to the second end 152, thereby increasing the reliability of the folding assembly 100.

[0063] The embodiment of the present application does not limit the connection method between the first shaft body 133 and the shaft cover 132. In some embodiments, the first shaft body 133 and the shaft cover 132 are detachably connected, including but not limited to snap-on or screw-on. In other embodiments, the first shaft body 133 and the shaft cover 132 are fixedly connected, including but not limited to bonding or welding.

[0064] The embodiment of the present application does not limit the shapes of the first shaft body 133 and the shaft cover 132. For example, the first shaft body 133 and the shaft cover 132 are both long strips, and the first shaft body 133 and the shaft cover 132 extend along the x direction.

[0065] In some embodiments of the present application, the shaft cover 132 is located on the side of the first shaft body 133 facing the flexible screen 20. In other embodiments, the shaft cover 132 may also be located on the side of the first shaft body 133 facing away from the flexible screen 20.

[0066] Figure 6 In the embodiment, the inner surface of the first receiving groove 131 includes an arc surface A, and the arc surface A is coaxial with the rotating shaft 130. In the embodiment in which the first receiving groove 131 and the second end 152 of the first rotating arm 150 are rotatably connected, the second end 152 abuts against the arc surface A, so that the second end 152 slides along the arc surface A. Figure 6 , the axis of the rotating shaft 130 is c2.

[0067] In the embodiments of the present application, coaxiality does not limit the two axes to be parallel and the distance to be zero. Exemplarily, the aforementioned coaxiality of the arc surface A and the shaft 130 does not limit the axis of the arc surface A and the axis (c2) of the shaft 130 to be parallel and the distance to be zero. In some embodiments, the angle between the axis of the arc surface A and the axis of the shaft 130 is less than 5°, for example, the aforementioned angle may be 0°, 1°, 2°, 3°, 4° or 5°, etc. The distance between the axis of the arc surface A and the axis of the shaft 130 is less than 1 mm (millimeter), for example, the aforementioned distance may be 0 μm (micrometer), 50 μm, 80 μm, 100 μm, 200 μm, 500 μm, 600 μm, 800 μm, 900 μm or 1 mm, etc.

[0068] Figure 6In the embodiment, the arc surface A is curved toward the side away from the flexible screen 20. In other words, the axis of the arc surface A is located on the side of the arc surface A away from the flexible screen 20. In this way, when the folding assembly 100 is in the folded state, the first middle frame 210 and the second middle frame 220 are both located between the opposite ends of the flexible screen 20, that is, the folding assembly 100 is an outward folding type.

[0069] The embodiment of the present application does not limit the central angle corresponding to the arc surface A of the first receiving groove 131, and can be set according to the stroke of the second end 152 relative to the arc surface A. Exemplarily, the central angle corresponding to the arc surface A is 60° to 180°. For example, the central angle can be 60°, 80°, 90°, 100°, 120°, 130°, 160 or 180°, etc. The central angle corresponding to the arc surface A is larger, which can increase the contact area between the arc surface A and the second end 152, increase the connection strength between the first receiving groove 131 and the second end 152, and increase the reliability of the structure.

[0070] It can be understood that in other embodiments of the present application, the bending direction of the arc surface A can be toward the flexible screen 20, that is, the axis of the arc surface A is located on the side of the arc surface A facing the flexible screen 20. For example, the shaft cover 132 is located on the side of the first shaft body 133 facing the flexible screen 20. The arc surface A is arranged on the side of the first shaft body 133 facing the flexible screen 20. In this way, when the folding component 100 is in the folded state, the flexible screen 20 is located between the first middle frame 210 and the second middle frame 220, that is, the folding component 100 is an inward folding type.

[0071] The embodiment of the present application does not limit the shape of the first connecting rod 140. For example, the first connecting rod 140 is a plate-like structure, and both opposite ends of the plate-like structure are bent to form a cylindrical through hole. Figure 5 As shown in the figure, the first pin 102 extends into a cylindrical through hole and is connected to the cylindrical through hole, and the second pin 102 extends into another cylindrical through hole and is connected to the cylindrical through hole.

[0072] The embodiment of the present application does not limit the shape of the first rotating arm 150 . Figure 6 In the embodiment, the first rotating arm 150 includes an arc portion 153 and a sliding portion 154, the arc portion 153 and the sliding portion 154 are connected, and the arc portion 153 and the rotating shaft 130 are coaxial, that is, the rotation axis of the arc portion 153 and the rotating shaft 130 is the axis c2. The arc portion 153 is rotatably connected to the first receiving groove 131 as the aforementioned second end 152. For example, the arc portion 153 abuts against the arc surface A and slides relative to the arc surface A so that the arc portion 153 rotates relative to the first receiving groove 131. The sliding portion 154 is the aforementioned first end 151 and the second bracket 120 (such as Figure 5As shown in FIG. 1 , the second end 152 and the first receiving groove 131 are connected by sliding in a direction perpendicular to the x direction. In this way, the second end 152 and the rotating shaft 130 can rotate relative to each other through the rotation connection of the arc portion 153 and the first receiving groove 131. The second end 152 and the rotating shaft 130 can be rotationally connected without a rigid shaft, which provides a margin for the assembly of the second end 152 and the rotating shaft 130. Even if the assembly accuracy of the second end 152 and the rotating shaft 130 is low, the second end 152 and the first receiving groove 131 can also rotate relative to each other.

[0073] Figure 6 In the example, an arc surface A is respectively provided at the opposite ends of the first receiving groove 131 along the axial direction of the rotating shaft 130, and both arc surfaces A are in contact with the arc portion 153. The area between the two arc surfaces A is a hollow area. In other words, the first receiving groove 131 includes two arc surfaces A and a hollow area on the side facing the arc portion 153, and the hollow area is located between the two arc surfaces A. In this way, the relative rotation of the first receiving groove 131 and the arc portion 153 can be achieved. At the same time, the hollow area does not abut against the arc portion 153, and the requirements for the processing accuracy and surface roughness of the hollow area can be reduced, thereby reducing the processing cost of the first receiving groove 131. In some embodiments, the hollow area is a through hole, so that the fourth end 142 passes through the through hole and is rotatably connected to the arc portion 153. The hollow area can accommodate other components of the folding assembly 100 (such as part of the first connecting rod 140), thereby reducing the volume of the folding assembly 100. In other embodiments, the entire surface of the first receiving groove 131 facing the arc-shaped portion 153 may be an arc surface, that is, the aforementioned hollow area may not be provided.

[0074] Exemplarily, the inner wall and the outer wall of the arc portion 153 are both arc-shaped surfaces. The outer wall of the arc portion 153 abuts against the arc surface A of the first receiving groove 131. The surface of the shaft cover 132 facing the first shaft body 133 is an arc-shaped surface. The inner wall of the arc portion 153 abuts against the surface of the shaft cover 132 facing the first shaft body 133.

[0075] As described above, the fourth end 142 of the first connecting rod 140 and the second end 152 of the first rotating arm 150 are rotatably connected through the second pin 102. Because the fourth end 142 and the second end 152 are both located in the first receiving groove 131, the second pin 102 is also located in the first receiving groove 131. Figure 6 In the example, the fourth end 142 is sleeved on the second pin shaft 102 , and the arc portion 153 of the second end 152 is rotatably connected to the second pin shaft 102 .

[0076] Exemplarily, the arc portion 153 is provided with a mounting groove 155 that passes through the inner wall and the outer wall of the arc portion 153, and the fourth end 142 is located in the mounting groove 155 and is rotatably connected to the mounting groove 155. The arc portion 153 and the fourth end 142 are rotatably connected by the mounting groove 155 and the fourth end 142. Because the mounting groove 155 passes through the inner wall and the outer wall of the arc portion 153, and the fourth end 142 is rotatably connected to the mounting groove 155, during the rotation of the fourth end 142 relative to the mounting groove 155, the inner wall and the outer wall of the arc portion 153 interfere less with the fourth end 142, and the movement is smoother. When the sliding portion 154 is relative to the second bracket 120 (such as Figure 5 During the sliding process (as shown in the figure), the arc portion 153 rotates relative to the first accommodating groove 131 and slides relative to the arc surface A, thereby constraining the movement trajectory of the first rotating arm 150.

[0077] In some embodiments, the axis of the rotational connection between the fourth end 142 and the mounting groove 155 is parallel to the axis of the rotating shaft 130 . Figure 6 In the figure, the mounting groove 155 is rotationally connected to the fourth end 142 through the second pin shaft 102, and the axis of the rotation connection between the fourth end 142 and the mounting groove 155 is c1. And because the arc portion 153 is coaxial with the rotating shaft 130. Then the axes of the rotating shaft 130 and the arc portion 153 are both c2. When the folding assembly 100 is adjusted from the unfolded state to the folded state, the fourth end 142 rotates relative to the mounting groove 155, and the arc portion 153 rotates relative to the first accommodating groove 131, because the axis c1 is parallel to the axis c2, the first rotating arm 150 and the first connecting rod 140 form a cavity, which is used to accommodate the bending portion of the flexible screen 20.

[0078] It can be understood that the aforementioned axis c1 and axis c2 being parallel means that the angle between axis c1 and axis c2 is approximately 0°, for example, it can be ±10°, ±9°, ±8°, ±7°, ±6°, ±5°, ±4°, ±3°, ±2°, ±1° or 0°, etc.

[0079] Exemplarily, the axis c1 of relative rotation between the fourth end 142 of the first connecting rod 140 and the mounting groove 155 is parallel to the axis c2 of the rotating shaft 130. In this way, during the rotation of the fourth end 142 relative to the mounting groove 155 and the rotation of the arc-shaped portion 153 relative to the first accommodating groove 131, the fourth end 142 has less interference with the arc-shaped portion 153, making the rotation of the fourth end 142 and the rotation of the arc-shaped portion 153 smoother.

[0080] In the embodiment where the first receiving groove 131 includes two arc surfaces A and a hollow area on one side facing the arc portion 153, the mounting groove 155 is located in the hollow area. In this way, the mounting groove 155 and the fourth end 142 can rotate relative to each other while the arc surface A has a larger area, thereby increasing the contact area between the arc portion 153 and the first receiving groove 131 and improving the structural reliability of the arc portion 153 and the first receiving groove 131.

[0081] As described above, the sliding portion 154 and the second bracket 120 are slidably connected along a direction perpendicular to the x-direction. Figure 7 This is a schematic diagram of the structure of the first bracket 110, the second bracket 120 and the rotating shaft 130 provided in the embodiment of the present application. Figure 7 , the second bracket 120 is provided with a first slide rail 121, and the extension direction of the first slide rail 121 is perpendicular to the axial direction of the rotating shaft 130. When the folding assembly 100 is adjusted from the unfolded state to the folded state, the sliding portion 154 slides from the end of the first slide rail 121 close to the rotating shaft 130 to the end of the first slide rail 121 away from the rotating shaft 130. In some embodiments, the extension direction of the first slide rail 121 is perpendicular to the x direction. In this way, the relative sliding direction of the sliding portion 154 and the second bracket 120 is perpendicular to the axial direction of the rotating shaft 130.

[0082] The embodiment of the present application does not limit the structures of the sliding portion 154 and the first sliding rail 121 . Figure 7 In the embodiment, the sliding part 154 is provided with a sliding rod 156, and the sliding rod 156 is slidably connected to the first slide rail 121. The sliding rod 156 extends along the x-direction. When the folding assembly 100 is an outward folding type, the first slide rail 121 is provided with an opening facing away from the flexible screen 20, and the length of the sliding rod 156 along the x-direction is greater than the size of the opening of the first slide rail 121 along the x-direction. In this way, the sliding rod 156 can be prevented from detaching from the first slide rail 121. In addition, the surface of the sliding part 154 facing the first slide rail 121 abuts against the first slide rail 121, so that the contact area between the sliding part 154 and the first slide rail 121 is larger, so that the force distribution between the sliding part 154 and the first slide rail 121 is more uniform, and the connection strength between the sliding part 154 and the second bracket 120 is increased.

[0083] Please return to Figure 4In some embodiments, the folding assembly 100 further includes a second connecting rod 160 and a second rotating arm 170. The first rotating shaft 130 is further provided with a third receiving groove 136, and the third receiving groove 136 is spaced apart from the first receiving groove 131. One end of the second connecting rod 160 is rotatably connected to a side of the second bracket 120 close to the rotating shaft 130, and the other end of the second connecting rod 160 is located in the third receiving groove 136 and is rotatably connected to the second rotating arm 170. One end of the second rotating arm 170 is slidably connected to the first bracket 110 in a direction perpendicular to the x direction, and the other end of the second rotating arm 170 is located in the third receiving groove 136 and is rotatably connected to the rotating shaft 130. Because the first bracket 110 and the second bracket 120 are respectively located on opposite sides of the rotating shaft 130, one end of the second connecting rod 160 and one end of the second rotating arm 170 are both rotatably connected to the third receiving groove 136, and the third receiving groove 136 penetrates the rotating shaft 130 from the side of the rotating shaft 130 facing the second connecting rod 160 to the side of the rotating shaft 130 facing the second rotating arm 170. The third receiving groove 136 provides a larger receiving space for the end of the second connecting rod 160 and the end of the second rotating arm 170, increases the contact area between the second connecting rod 160 and the rotating shaft 130, and increases the contact area between the second rotating arm 170 and the rotating shaft 130, so that the connection strength between the second rotating arm 170 and the rotating shaft 130 is improved, and the reliability of the folding assembly 100 is improved.

[0084] In addition, one end of the first connecting rod 140 away from the rotating shaft 130 (the aforementioned third end 141) is rotatably connected to the first bracket 110. One end of the second connecting rod 160 away from the rotating shaft 130 is rotatably connected to the second bracket 120. One end of the first rotating arm 150 away from the rotating shaft 130 (the aforementioned first end 151) is slidably connected to the second bracket 120. In other words, the installation position of the second connecting rod 160, the installation position of the first connecting rod 140, the installation position of the first rotating arm 150 and the installation position of the second rotating arm 170 are centrally symmetrically distributed. This is conducive to the mutual balance of the force exerted by the first bracket 110 on the rotating shaft 130 and the force exerted by the second bracket 120 on the rotating shaft 130, so that the force on the rotating shaft 130 is stable, and the structural stability of the folding assembly 100 is increased.

[0085] In an embodiment of the present application, the third accommodating groove 136 and the first accommodating groove 131 are arranged at intervals along the axial direction of the rotating shaft 130. Exemplarily, the third accommodating groove 136 and the first accommodating groove 131 can be connected to each other or isolated from each other. In addition, in an embodiment in which the rotating shaft 130 includes a first shaft body 133 and a shaft cover 132, the first shaft body 133 and the shaft cover 132 are arranged to form the first accommodating groove 131, and the first shaft body 133 and the shaft cover 132 can also be arranged to form the third accommodating groove 136. Alternatively, in some embodiments, the rotating shaft 130 can include two shaft covers 132, one shaft cover 132 and the first shaft body 133 form the first accommodating groove 131, and the other shaft cover 132 and the first shaft body 133 form the third accommodating groove 136.

[0086] In the embodiment of the present application, the structure of the third receiving groove 136 can refer to the description of the first receiving groove 131, and the structure of the second connecting rod 160 can refer to the description of the first connecting rod 140. The connection relationship between the second connecting rod 160 and the second bracket 120 and the rotating shaft 130 can also refer to the description of the first connecting rod 140 and the first bracket 110 and the rotating shaft 130, which will not be repeated here. Correspondingly, in the embodiment of the present application, the structure of the second rotating arm 170 can refer to the description of the first rotating arm 150. The connection relationship between the second rotating arm 170 and the first bracket 110 and the rotating shaft 130 can also refer to the description of the first rotating arm 150 and the second bracket 120 and the rotating shaft 130, which will not be repeated here.

[0087] Please return to Figure 4 In some embodiments of the present application, the folding assembly 100 further includes a first connecting member 181 and a second connecting member 182. One end of the first connecting member 181 is slidably connected to the first bracket 110 in a direction perpendicular to the x-direction. One end of the second connecting member 182 is slidably connected to the second bracket 120 in a direction perpendicular to the x-direction. One end of the first connecting member 181 facing away from the first bracket 110 is engaged with one end of the second connecting member 182 facing away from the second bracket 120.

[0088] One end of the first connecting member 181 is meshed with one end of the second connecting member 182, so that the first connecting member 181 and the second connecting member 182 move synchronously. For example, when the folding assembly 100 is adjusted between the unfolded state and the folded state, the first connecting member 181 slides relative to the first bracket 110, and the second connecting member 182 slides synchronously relative to the second bracket 120. The angular speeds of the first bracket 110 and the second bracket 120 rotating relative to the rotating shaft 130 are equal. Obviously, the first middle frame 210 (such as Figure 2 as shown) and the second middle frame 220 (as shown Figure 2 The angular speeds of the rotations of the rotating shaft 130 are equal, so that the first middle frame 210 and the second middle frame 220 are synchronously unfolded or folded.

[0089] Figure 4 In the example, the first connecting member 181, the second rotating arm 170 and the first connecting rod 140 are all located on the same side of the first bracket 110. The embodiment of the present application does not limit the positional relationship between the first connecting member 181, the second rotating arm 170 and the first connecting rod 140. For example, Figure 4In the embodiment, along the x direction, the first connecting member 181, the second rotating arm 170 and the first connecting rod 140 are sequentially arranged at intervals. In other embodiments, along the x direction, the second rotating arm 170, the first connecting member 181 and the first connecting rod 140 are sequentially arranged at intervals. Alternatively, along the x direction, the second rotating arm 170, the first connecting rod 140 and the first connecting member 181 are sequentially arranged at intervals. The arrangement relationship between the second connecting member 182 and the first rotating arm 150 and the second connecting rod 160 is similar, and will not be repeated here.

[0090] In some embodiments of the present application, the flexible screen 20 is located on the side of the first connecting member 181 away from the first bracket 110, and the flexible screen 20 is located on the side of the second connecting member 182 away from the second bracket 120. In other words, the first connecting member 181 is slidably connected to the side of the first bracket 110 facing the flexible screen 20. In other embodiments, the first connecting member 181 is located on the side of the first bracket 110 away from the flexible screen 20, and the second connecting member 182 is located on the side of the second bracket 120 away from the flexible screen 20. In other words, the first connecting member 181 is slidably connected to the side of the first bracket 110 away from the flexible screen 20.

[0091] In some embodiments, in order to reduce the space occupied by the first connecting member 181 and the second connecting member 182 , the end portions where the first connecting member 181 and the second connecting member 182 engage with each other are located inside the rotating shaft 130 .

[0092] Figure 8a for Figure 3b Schematic diagram of the cross section at DD in the middle. Figure 8a In the embodiment, the rotating shaft 130 is further provided with a second receiving groove 137, and the second receiving groove 137 and the first receiving groove 131 (such as Figure 6 As shown in the figure, the first connecting member 181 and the second connecting member 182 are arranged at intervals, and the end of the first connecting member 181 away from the first bracket 110 and the end of the second connecting member 182 away from the second bracket 120 are both located in the first receiving groove 131, and are both rotatably connected to the rotating shaft 130. In this way, the end of the first connecting member 181 away from the first bracket 110 and the end of the second connecting member 182 away from the second bracket 120 are both received in the rotating shaft 130, reducing the space occupied by the first connecting member 181, the second connecting member 182 and the rotating shaft 130. In addition, one end of the second connecting member 182 is slidably connected to the second bracket 120 in a direction perpendicular to the x-direction, and the other end is rotatably connected to the second receiving groove 137. The first rotating arm 150 (as shown in the figure) is arranged at intervals, and the end of the first connecting member 181 away from the first bracket 110 and the end of the second connecting member 182 away from the second bracket 120 are both located in the first receiving groove 131, and are both rotatably connected to the rotating shaft 130. Figure 7 The second connecting member 182 and the first rotating arm 150 can move synchronously. In some embodiments, the surface of the second connecting member 182 facing the flexible screen 20 and the surface of the first rotating arm 150 facing the flexible screen 20 are coplanar, which is conducive to making the flexible screen 20 flatter.

[0093] Figure 8b Schematic diagram of the structure of the first connecting member 181 and the second connecting member 182. Figure 8b As shown, the end of the first connecting member 181 away from the first bracket 110 is rotatably connected to the rotating shaft 130 via the third pin shaft 103. The end of the second connecting member 182 away from the second bracket 120 is rotatably connected to the rotating shaft 130 via the fourth pin shaft 104. The end of the first connecting member 181 away from the first bracket 110 is provided with a first tooth portion 105, and the end of the second connecting member 182 away from the second bracket 120 is provided with a second tooth portion 106, and the first tooth portion 105 and the second tooth portion 106 are both located in the second receiving groove 137, and the first tooth portion 105 and the second tooth portion 106 are meshed.

[0094] In the embodiment of the present application, in order to facilitate manufacturing and installation, the rotating shaft 130 also includes a cover plate 138, and the cover plate 138 and the first shaft body 133 surround the second receiving groove 137. In this way, the first shaft body 133 and the cover plate 138 can be manufactured separately, and then the cover plate 138 and the first shaft body 133 are connected to form the second receiving groove 137, which is convenient for assembling the second receiving groove 137. The embodiment of the present application does not limit the connection method between the cover plate 138 and the first shaft body 133. For example, the cover plate 138 and the first shaft body 133 are detachably connected by components such as screws, adhesive layers or snaps. Alternatively, the cover plate 138 and the first shaft body 133 are welded by means of a welding layer or an adhesive layer.

[0095] The rotating shaft 130 includes a cover plate 138 and a shaft cover 132 (such as Figure 6 In the embodiment shown in FIG. 1 , the shaft cover 132 and the cover plate 138 may be spaced apart. Alternatively, the shaft cover 132 and the cover plate 138 may be connected to form an integrally formed part.

[0096] It is understandable that in some embodiments of the present application, the first tooth portion 105 and the second tooth portion 106 may not be located in the rotating shaft. For example, the first tooth portion 105 and the second tooth portion 106 are both located on the side of the rotating shaft 130 away from the flexible screen 20. The meshing first tooth portion 105 and the second tooth portion 106 can make the first connecting member 181 and the second connecting member 182 move synchronously, so that the first connecting member 181 and the second connecting member 182 respectively drive the first bracket 110 and the second bracket 120 to move synchronously. Alternatively, the first tooth portion 105 and the second tooth portion 106 are both located on the side of the rotating shaft 130 facing the flexible screen 20, which can also make the first bracket 110 and the second bracket 120 rotate synchronously relative to the rotating shaft 130.

[0097] Figure 8aIn the embodiment, the second bracket 120 is provided with a second slide rail 122, and the end of the second connecting member 182 away from the rotating shaft 130 is slidably connected to the second slide rail 122. The extension direction of the second slide rail 122 is perpendicular to the x direction. The end of the second connecting member 182 away from the rotating shaft 130 is slidably connected to the second bracket 120 in a direction perpendicular to the x direction. Figure 8a and Figure 8b As shown, when the folding assembly 100 is adjusted from the unfolded state to the folded state, the end of the second connecting member 182 away from the rotating shaft 130 slides from the end of the second slide rail 122 close to the rotating shaft 130 to the end of the second slide rail 122 away from the rotating shaft 130 .

[0098] When the folding assembly 100 is adjusted between the unfolded state and the folded state, the sliding direction of the second connecting member 182 relative to the second bracket 120 is parallel to the sliding direction of the sliding portion 154 of the first rotating arm 150 relative to the second bracket 120 .

[0099] The structure of the second slide rail 122 can refer to the description of the first slide rail 121. The connection method between the first connecting member 181 and the first bracket 110 can refer to the description of the second connecting member 182 and the second bracket 120, which will not be repeated here.

[0100] Please return to Figure 7 In some embodiments, the folding assembly 100 further includes a swing arm. One end of the swing arm is rotatably connected to the rotating shaft 130, and the other end of the swing arm is slidably connected to the first bracket 110 in a direction perpendicular to the x direction, or the other end of the swing arm is slidably connected to the second bracket 120 in a direction perpendicular to the x direction. The embodiment of the present application does not limit the number of swing arms, for example, it can be one, two, three or more. For the convenience of description, the swing arm slidably connected to the first bracket 110 is named as the first swing arm 191, and the swing arm slidably connected to the second bracket 120 is named as the second swing arm 192. The first swing arm 191 and the first connecting rod 140 can be arranged at intervals along the axial direction of the rotating shaft 130. The arrangement of the first swing arm 191 can increase the force point of the first bracket 110 and the rotating shaft 130, and increase the structural strength of the first bracket 110 and the rotating shaft 130. Similarly, the second swing arm 192 can increase the structural strength of the second bracket 120 and the rotating shaft 130.

[0101] In the embodiment where the folding assembly 100 includes the first connecting member 181, the first swing arm 191 and the first connecting rod 140, the embodiment of the present application does not limit the positional relationship between the first connecting member 181, the first swing arm 191 and the first connecting rod 140. For example, along the x direction, the first swing arm 191 is located between the first connecting member 181 and the first connecting rod 140, or the first connecting member 181 is located between the first swing arm 191 and the first connecting rod 140, or the first connecting member 181 is located between the first swing arm 191 and the first connecting rod 140. Similarly, in the embodiment where the folding assembly 100 also includes the second rotating arm 170, the positional relationship between the first swing arm 191, the second rotating arm 170 and the first connecting member 181 is also not limited, and will not be repeated here.

[0102] The embodiment of the present application does not limit the manner in which the first swing arm 191 is rotatably connected to the rotating shaft 130. For example, one end of the first swing arm 191 is rotatably connected to the rotating shaft 130 via a pin. In the embodiment in which the rotating shaft 130 includes a shaft cover 132 and a first shaft body 133, one end of the first swing arm 191 is rotatably connected to the first shaft body 133 via a pin.

[0103] In some embodiments, the axis c3 of the first swing arm 191 rotating relative to the shaft 130 is colinear with the axis c1 of the first connecting rod 140 rotating relative to the shaft 130. In this way, the trajectories of the first swing arm 191 and the first connecting rod 140 rotating relative to the shaft 130 are parallel, making the flexible screen 20 flatter.

[0104] The structure of the second swing arm 192 and the connection relationship between the second swing arm 192 and the rotating shaft 130 can be found in the description of the first swing arm 191 above, which will not be repeated here.

[0105] Figure 7 In the embodiment, the second bracket 120 is further provided with a third slide rail 123 , and the extension direction of the third slide rail 123 is perpendicular to the x direction. The second swing arm 192 is slidably connected to the third slide rail 123 . Fig. 9 This is a schematic diagram of the structure of the second swing arm 192 provided in an embodiment of the present application. Fig. 9 In the embodiment, the second swing arm 192 is provided with a protrusion 193, and the third slide rail 123 (such as Figure 7 As shown) is provided with a groove structure 194 (as shown Figure 7 As shown in FIG. 1 , the protrusion 193 extends into the groove structure 194 and is slidably connected to the groove structure 194. The arrangement of the groove structure 194 and the protrusion 193 can constrain the second swing arm 192 and the second bracket 120 (as shown in FIG. 1 ). Figure 7 Similarly, the manner in which the first swing arm 191 and the first bracket 110 are slidably connected can also refer to the description of the second swing arm 192 and the second bracket 120 described above.

[0106] Please return to Figure 4In some embodiments, the folding assembly 100 further includes two door panels, namely a first door panel 230 and a second door panel 240. The first door panel 230 is rotatably connected to the rotating shaft 130 and the first bracket 110 on two opposite sides perpendicular to the x-direction. The second door panel 240 is rotatably connected to the rotating shaft 130 and the second bracket 120 on two opposite sides perpendicular to the x-direction.

[0107] Fig.10 This is a schematic structural diagram of the first door panel 230, the rotating shaft 130 and the first bracket 110 provided in an embodiment of the present application. Fig.10 In the embodiment, the first door panel 230 includes a door body 231, a first rotating part 232 and a second rotating part 233. The first rotating part 232 and the second rotating part 233 are both connected to the door body 231. For example, the first rotating part 232 and the second rotating part 233 can be connected to the door body 231 as an integrally formed part. The first rotating part 232 is rotatably connected to the first bracket 110, and the second rotating part 233 is rotatably connected to the rotating shaft 130. In this way, the rotating shaft 130 and the first bracket 110 can both rotate relative to the first door panel 230. When the folding assembly 100 is in a folded state, the rotating shaft 130, the first bracket 110 and the first door panel 230 jointly form a cavity for accommodating the bending part of the flexible screen 20.

[0108] Exemplarily, the first bracket 110 includes a frame body 111 and a third rotating portion 112, and the third end 141 of the first connecting rod 140 is rotatably connected to the frame body 111. The first rotating portion 232 is rotatably connected to the third rotating portion 112.

[0109] There are many ways to rotatably connect the first rotating part 232 and the third rotating part 112. In some embodiments, Fig.10 In the embodiment, the third rotating part 112 is provided with an arc cavity 113, the first rotating part 232 is an arc block, the axis c4 of the arc block is located on the side of the first rotating part 232 facing the door body 231, and the arc block is rotatably connected with the arc cavity 113. In this way, the arc block is slidably connected with the arc cavity 113 by sliding in the arc cavity 113.

[0110] The axis c5 of the arc cavity 113 is located on the side of the third rotating part 112 facing the flexible screen 20. The axis c5 of the arc cavity 113 is coaxial with the axis c4 of the arc block. When the first bracket 110 and the rotating shaft 130 rotate relative to each other, the first rotating part 232 slides in the arc cavity 113 of the third rotating part 112 to rotate the first door panel 230 relative to the first bracket 110 to fold or unfold the folding assembly 100.

[0111] It is understandable that, in other embodiments, the third rotating portion 112 may be an arc-shaped block, and the first rotating portion 232 is provided with an arc-shaped cavity 113, which can also enable the first rotating portion 232 and the third rotating portion 112 to rotate.

[0112] The embodiment of the present application does not limit the number of the first rotating parts 232 of the first door panel 230. For example, the first rotating parts 232 may be one, two, three or more. In the embodiment where the first rotating parts 232 include multiple ones, the multiple first rotating parts 232 are arranged at intervals along the x direction. The first bracket 110 includes multiple third rotating parts 112. The multiple first rotating parts 232 and the multiple third rotating parts 112 are rotatably connected in a one-to-one correspondence. In this way, the first bracket 110 and the first door panel 230 have multiple fulcrums, which increases the reliability between the first bracket 110 and the first door panel 230.

[0113] Please return to Figure 4 In the embodiment of the present application, the door body 231 is located on the side of the first connecting rod 140, the second rotating arm 170, the first connecting member 181 and the first swing arm 191 facing the flexible screen 20. In this way, when the rotating shaft 130 and the first bracket 110 rotate relative to the first door panel 230, the door body 231 can support the flexible screen 20. The first rotating portion 232 and the second rotating portion 233 are located on the side of the door body 231 away from the flexible screen 20. The first rotating portion 232 and the second rotating portion 233 can avoid the flexible screen 20.

[0114] Fig.10 In the embodiment, the connection method between the second rotating part 233 and the rotating shaft 130 is the same as the connection method between the first rotating part 232 and the second rotating part 233. Exemplarily, the rotating shaft 130 includes a second shaft body 234 and a fourth rotating part 235. The second shaft body 234 and the fourth rotating part 235 are connected. The first accommodating groove 131 is located on the second shaft body 234. The first connecting rod 140, the second rotating arm 170, the first connecting member 181 and the first swing arm 191 are all connected to the second shaft body 234. The fourth rotating part 235 is connected to the second rotating part 233. For the structure of the fourth rotating part 235, please refer to the structure of the aforementioned third rotating part 112, and for the structure of the second rotating part 233, please refer to the structure of the aforementioned first rotating part 232, which will not be repeated here.

[0115] As above, the embodiment of the present application does not limit the number of the second rotating parts 233 of the first door panel 230. It can be one, two, three or more. In the embodiment where the second rotating part 233 includes multiple, the multiple second rotating parts 233 are arranged at intervals along the x direction. The rotating shaft 130 includes multiple fourth rotating parts 235, and the multiple second rotating parts 233 and the multiple fourth rotating parts 235 are rotatably connected in a one-to-one correspondence. The rotating shaft 130 and the first door panel 230 have multiple points of force to increase reliability. The embodiment of the present application does not limit the relationship between the number of first rotating parts 232 and the number of second rotating parts 233. For example, the number of first rotating parts 232 and the number of second rotating parts 233 can be the same or different.

[0116] Fig.11 for Figure 3b Schematic diagram of the structure of the EE section. Fig.11 In the embodiment where the rotating shaft 130 includes the first shaft body 133 and the shaft cover 132 , the second shaft body 234 is connected to the first shaft body 133 as an integrally formed part. Alternatively, in some embodiments, the first shaft body 133 may be considered as the second shaft body 234 .

[0117] The embodiment of the present application does not limit the positional relationship between the first rotating portion 232 and the second rotating portion 233. In some embodiments, the first rotating portion 232 and the second rotating portion 233 are connected. In other embodiments, the first rotating portion 232 and the second rotating portion 233 are spaced apart along the x direction.

[0118] The structure of the second door panel 240 can be found in the description of the first door panel 230. The connection method between the second door panel 240 and the second bracket 120 can be found in the description of the first door panel 230 and the first bracket 110. The connection method between the second door panel 240 and the rotating shaft 130 can be found in the connection method between the first door panel 230 and the rotating shaft 130, which will not be described again.

[0119] Please return to Figure 2 In the embodiment of the present application, the folding assembly 100 includes two first brackets 110 and two second brackets 120, and the two first brackets 110 are respectively connected to the two ends of the rotating shaft 130 along the x direction. The connection method of the two first brackets 110 and the rotating shaft 130 is the same. One first bracket 110 corresponds to one second bracket 120. The connection method of the two second brackets 120 and the rotating shaft 130 is also the same, please refer to the above description.

[0120] In some embodiments, the folding assembly 100 further includes a first auxiliary frame 250 and a second auxiliary frame 260. The first auxiliary frame 250 is located between the two first brackets 110, and the second auxiliary frame 260 is located between the two second brackets 120. The first auxiliary frame 250 is connected to the first middle frame 210. For example, the first auxiliary frame 250 is connected to the first middle frame 210 by a buckle, a glue layer, a screw or a welding layer. The second auxiliary frame 260 is connected to the second middle frame 220, for example, the first auxiliary frame 250 is connected to the second middle frame 220 by a buckle, a glue layer, a screw or a welding layer.

[0121] like Figure 4 As shown, one end of the first auxiliary frame 250 and the first middle frame 210 (as shown in FIG. Figure 2The first auxiliary frame 250 is connected to the first door panel 230 (as shown in the figure), and the other end of the first auxiliary frame 250 is rotatably connected to the first door panel 230. Because the first door panel 230 and the first bracket 110 are both rotatably connected to the shaft 130, when the first bracket 110 rotates relative to the shaft 130, the shaft 130 and the first bracket 110 both rotate relative to the first door panel 230. The first door panel 230 and the first auxiliary frame 250 also rotate accordingly. The first auxiliary frame 250 can increase the structural strength of the first middle frame 210, while increasing the transmission path between the first middle frame 210 and the shaft 130, thereby increasing the reliability of the folding assembly 100.

[0122] Figure 4 In the example, the first auxiliary frame 250 and the first door panel 230 are rotatably connected in a manner similar to the first bracket 110 and the first door panel 230. The structure and connection relationship of the second auxiliary frame 260 refer to the description of the first auxiliary frame 250, which will not be repeated here.

[0123] It can be understood that, in some embodiments of the present application, the first auxiliary frame 250 and the second auxiliary frame 260 are not necessary and may not be provided.

[0124] According to the above description, the folding assembly 100 provided in the embodiment of the present application has high structural strength and small volume. The terminal device 10 obviously has the advantages of high structural reliability and small volume.

[0125] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0126] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A folding assembly, characterized in that: The folding assembly comprises: A rotating shaft, wherein the rotating shaft is provided with a first accommodating groove; A first bracket and a second bracket; the first bracket and the second bracket are respectively arranged on two opposite sides of the rotating shaft; A first rotating arm comprises a first end and a second end which are arranged opposite to each other, wherein the first end is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft; and the second end is located in the first receiving groove and is rotatably connected to the rotating shaft; and The first connecting rod includes a third end and a fourth end that are arranged opposite to each other, wherein the third end is rotatably connected to an end of the first bracket close to the rotating shaft, and the fourth end is located in the first receiving groove and rotatably connected to the second end.

2. The folding assembly according to claim 1, characterized in that: The second end is rotatably connected to the first accommodating groove.

3. The folding assembly according to claim 1 or 2, characterized in that: The first rotating arm includes an arc portion and a sliding portion connected to each other, the arc portion is coaxial with the rotating shaft, the arc portion is rotatably connected to the first accommodating groove as the second end, and the sliding portion is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft as the first end.

4. The folding assembly according to claim 3, characterized in that: The arc-shaped portion is provided with a mounting groove penetrating the inner wall and the outer wall of the arc-shaped portion, and the fourth end is located in the mounting groove and is rotatably connected to the mounting groove.

5. The folding assembly according to claim 4, characterized in that: The axis of the rotational connection between the fourth end and the mounting groove is parallel to the axis of the rotating shaft.

6. The folding assembly according to any one of claims 1 to 5, characterized in that: The rotating shaft includes a first shaft body and a shaft cover, the first shaft body and the shaft cover are connected, the first shaft body and the shaft cover together form the first accommodating groove, and the fourth end and the second end are both located between the first shaft body and the shaft cover.

7. The folding assembly according to any one of claims 1 to 6, characterized in that: The folding assembly also includes: a first connecting member and a second connecting member; one end of the first connecting member is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; one end of the second connecting member is slidably connected to the second bracket along a direction perpendicular to the axial direction of the rotating shaft, and one end of the first connecting member facing away from the first bracket is engaged with one end of the second connecting member facing away from the second bracket.

8. The folding assembly according to claim 7, characterized in that: The rotating shaft is provided with a second accommodating groove, and the second accommodating groove is spaced apart from the first accommodating groove; one end of the first connecting member away from the first bracket and one end of the second connecting member away from the second bracket are both located in the second accommodating groove and are both rotatably connected to the rotating shaft.

9. The folding assembly according to claim 7 or 8, characterized in that: The folding assembly also includes: a swing arm, one end of which is rotatably connected to the rotating shaft, and the other end is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; the first connecting rod and the swing arm are spaced apart along the axial direction of the rotating shaft.

10. The folding assembly according to any one of claims 1 to 9, characterized in that: The folding assembly further includes: a second connecting rod and a second rotating arm; the rotating shaft further includes a third accommodating groove; the second connecting rod and the first rotating arm are spaced apart along the axial direction of the rotating shaft; One end of the second rotating arm is slidably connected to the first bracket along a direction perpendicular to the axial direction of the rotating shaft; the other end is located in the third receiving groove and connected to the rotating shaft of the third receiving groove; One end of the second connecting rod is rotatably connected to one end of the second bracket close to the rotating shaft, and the other end is located in the third accommodating groove and rotatably connected to one end of the second rotating arm away from the first bracket.

11. The folding assembly according to any one of claims 1 to 10, characterized in that: The folding assembly also includes: a door panel; the door panel includes a door body, a first rotating part and a second rotating part, the first rotating part and the second rotating part are both connected to the door body, the first rotating part is rotationally connected to the first bracket, and the second rotating part is rotationally connected to the rotating shaft.

12. The folding assembly according to claim 11, characterized in that: The first bracket comprises a bracket body and a third rotating part connected to each other, and the third end is rotatably connected to the bracket body; The first rotating part is provided with an arc-shaped cavity, the axis of the arc-shaped cavity is located on the side of the first rotating part facing the door body, and the third rotating part is an arc-shaped block, which is rotatably connected to the arc-shaped cavity; Alternatively, the third rotating part is provided with an arc-shaped cavity, the first rotating part is an arc-shaped block, the axis of the arc-shaped block is located on the side of the first rotating part facing the door body, and the arc-shaped block is rotatably connected to the arc-shaped cavity.

13. The folding assembly according to claim 11 or 12, characterized in that: The rotating shaft comprises a second shaft body and a fourth rotating part connected to each other, and the first receiving groove is located on the second shaft body; The first rotating part is provided with an arc-shaped cavity, the axis of the arc-shaped cavity is located on the side of the first rotating part facing the door body, and the fourth rotating part is an arc-shaped block, which is rotatably connected to the arc-shaped cavity; Alternatively, the fourth rotating part is provided with an arc-shaped cavity, the first rotating part is an arc-shaped block, the axis of the arc-shaped block is located on the side of the first rotating part facing the door body, and the arc-shaped block is rotationally connected to the arc-shaped cavity.

14. A terminal device, characterized in that: The terminal device comprises: a flexible screen and a folding assembly as described in any one of claims 1 to 13; the flexible screen covers the first bracket, the second bracket and the same side of the hinge.

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