Hinge mechanism and foldable electronic equipment

Abstract

The utility model discloses a hinge mechanism and foldable electronic equipment, and belongs to the technical field of electronic equipment. The hinge mechanism comprises a base, a swing arm module and a damping module, the swing arm module comprises a first support and a first swing arm rotationally installed on the first support, the damping module comprises a second support, a first shaft body, a second swing arm and a damping component, the second swing arm and the damping component are installed on the second support, and the first support and the second support are both connected with the base. The first support and the second support are arranged on the base in the length direction of the base, the first support is provided with a first shaft hole, the second support is connected with the first shaft body, and at least part of the first shaft body is located in the first shaft hole. According to the hinge mechanism, the first support and the second support are connected in a limiting mode through the first shaft body, the connection stability of the first support and the second support is improved, relative shaking between the first support and the second support is reduced, and therefore the display effect of a display screen of the foldable electronic equipment with the hinge mechanism is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a hinge mechanism and a foldable electronic device. Background Art

[0002] With the development of technology, foldable electronic devices are becoming more and more widely used and have become important tools in people's daily life and work. Foldable electronic devices are favored by people because they occupy little space and are easy to carry.

[0003] A foldable electronic device generally includes two shells, a hinge mechanism and a display screen. The two shells are respectively connected to the two sides of the hinge mechanism, and the two shells can be relatively opened and closed under the action of the hinge mechanism. The display screen is located on the same side of the two shells and the hinge mechanism, and the display screen is connected to the shells so that it can be folded or unfolded during the relative opening and closing of the two shells. When the hinge mechanism is flattened, the display screen unfolds on the surfaces of the two shells and the hinge mechanism. The hinge mechanism generally includes a base and multiple functional modules mounted on the base, such as a swing arm module, a damping module and other structures. The swing arm module is used to connect the shell, and the damping module is used to provide a damping feel during the swinging of the shell.

[0004] At present, during the folding process of a foldable electronic device, the functional module is prone to shake relative to the base, which can easily cause wavy marks to appear at the place where the display screen and the hinge mechanism are opposite, affecting the display effect of the display screen. Utility Model Content

[0005] The present application provides a hinge mechanism and a foldable electronic device. The hinge mechanism can improve the connection stability between a first bracket and a second bracket through a first axis, thereby improving the display effect of the foldable electronic device using the hinge mechanism.

[0006] The technical solutions provided by this application are as follows:

[0007] The first aspect of the present application provides a hinge mechanism, a base, a swing arm module and a damping module, the swing arm module includes a first bracket and a first swing arm, the first swing arm is rotatably mounted on the first bracket, the damping module includes a second bracket, a first shaft, a second swing arm and a damping component, the second swing arm is rotatably mounted on the second bracket, the damping component is mounted on the second bracket, the damping component is used to provide damping force for the second swing arm, the first bracket and the second bracket are both connected to the base, the first bracket and the second bracket are arranged on the base along the length direction of the base, the first bracket is provided with a first axial hole, the second bracket is connected to the first shaft, and at least part of the first shaft is located in the first axial hole.

[0008] The hinge mechanism of the present application is applied to a foldable electronic device. In the hinge mechanism provided in the present application, the first bracket and the second bracket are limitedly connected by a first axis, and the first axis connects the base, the first bracket and the second bracket into an integrated structure to improve the connection stability between the first bracket and the second bracket, reduce the relative shaking between the first bracket and the second bracket, reduce the collision of the swing arm module and the damping module with the display screen, and reduce the possibility of wavy marks on the display screen, thereby improving the display effect of the display screen of the foldable electronic device using the hinge mechanism.

[0009] In some implementations, there are multiple swing arm modules, and damping modules are respectively arranged between adjacent swing arm modules. The first bracket is provided with first axial holes at both ends of the length direction of the base; the first shaft body extends into the corresponding first axial holes at both ends along the length direction of the base.

[0010] In some implementations, the damping component includes a first elastic portion, the first elastic portion is sleeved on the outside of the first shaft, and the second swing arm is configured to compress the first elastic portion during the rotation process.

[0011] In some implementations, the damping module also includes a second shaft, the damping component also includes a second elastic part, the second shaft is mounted on the second bracket, the second elastic part is sleeved on the outside of the second shaft, the second swing arm is configured to compress the second elastic part during rotation, and the second shaft is arranged parallel to the first shaft.

[0012] In some implementations, the first bracket is provided with a second axial hole, and at least one end of the second shaft body extends out of the second bracket and is located in the corresponding second axial hole.

[0013] In some implementations, a first opening is provided on the first bracket, the second axial hole is connected to the first opening, the first opening is located on one side of the second axial hole in the thickness direction of the base, and a partial structure of the first axis body in the thickness direction of the base extends out of the second axial hole through the first opening.

[0014] In some implementations, a second bracket is provided with two first shaft bodies, the two first shaft bodies are spaced apart in the width direction of the base, and the second shaft body is located between the two first shaft bodies.

[0015] In some implementations, there are two first shafts and two second swing arms, the two second swing arms are sleeved on the two first shafts in a one-to-one correspondence, the second swing arms are provided with first gears, and the two first gears are meshed.

[0016] In some implementations, the damping module further includes a second gear and a third shaft, the second gear is sleeved on the outside of the third shaft, the second gear is rotatably mounted on the second bracket via the third shaft, and the two first gears are meshed via the second gear.

[0017] In some implementations, the first bracket is provided with a third axial hole, and one end of the third shaft body is located in the corresponding third axial hole.

[0018] In some implementations, a second opening is provided on the first bracket, the third axial hole is connected to the second opening, the second opening is located on one side of the third axial hole in the thickness direction of the base, and a partial structure of the first axis body in the thickness direction of the base extends out of the third axial hole through the second opening.

[0019] In some implementations, the base includes a base shell and a cover body, the base shell and the cover body are connected and surround a receiving cavity, and the first bracket and the second bracket are both located in the receiving cavity.

[0020] In some implementations, the base includes a base shell and a cover body, the base shell and the cover body are connected and surround a receiving cavity, and the first bracket and the second bracket are both located in the receiving cavity.

[0021] In some implementations, the first bracket is connected to at least one of the base shell and the cover body through a first locking member.

[0022] In some implementations, the second bracket is connected to at least one of the base shell and the cover body through a second locking member.

[0023] In some implementations, the first bracket is welded to the cover body, and / or the second bracket is welded to the cover body.

[0024] A second aspect of the present application provides a foldable electronic device, comprising a hinge mechanism provided by any of the above technical solutions.

[0025] Through the above technical solution, since the electronic device includes the above hinge mechanism, it at least has all the beneficial effects of the hinge mechanism, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a foldable electronic device in a folded state provided by an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a foldable electronic device in a semi-expanded state provided by an embodiment of the present application;

[0028] Figure 3 is a schematic structural diagram of a foldable electronic device in an unfolded state provided by an embodiment of the present application;

[0029] Figure 4 yes Figure 3 An exploded diagram of the parts of a foldable electronic device;

[0030] Figure 5 This is a schematic diagram of the structure of the hinge mechanism provided in the embodiment of the present application. Figure 1 ;

[0031] Figure 6 yes Figure 5 Sectional view along line AA;

[0032] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0033] Figure 8 is an exploded view of the parts of the hinge mechanism provided in the embodiment of the present application;

[0034] Fig. 9 yes Figure 8 The enlarged view of point D in the middle;

[0035] Fig.10 is a structural schematic diagram of a cover body in a hinge mechanism provided in an embodiment of the present application;

[0036] Fig.11 yes Fig.10 Enlarged view of point E in the middle;

[0037] Fig.12 It is an exploded view of the parts of the swing arm module and the first locking member in the hinge mechanism provided in the embodiment of the present application;

[0038] Fig.13 It is an exploded view of the parts of a damping module in the hinge mechanism provided in an embodiment of the present application;

[0039] Fig.14 yes Figure 5 The enlarged view of point B in the middle;

[0040] Fig.15 It is a schematic diagram of the distribution of multiple swing arm modules and multiple damping modules on a base in a hinge mechanism provided in an embodiment of the present application;

[0041] Fig.16 This is a schematic diagram of the structure of another damping module in the hinge mechanism provided in the embodiment of the present application. Figure 1 ;

[0042] Fig.17 This is a schematic diagram of the structure of another damping module in the hinge mechanism provided in the embodiment of the present application. Figure 2 ;

[0043] Fig.18 yes Fig.17 Exploded view of the parts of the middle damping module;

[0044] Fig.19 is a schematic diagram of the relative position relationship between the swing arm module and the damping module in the hinge mechanism provided in an embodiment of the present application;

[0045] Fig. 20This is a schematic diagram of the structure of the hinge mechanism provided in the embodiment of the present application. Figure 2 ;

[0046] Fig.21 yes Fig. 20 Sectional view along line FF;

[0047] Fig. 22 This is a schematic diagram of the structure of the hinge mechanism provided in the embodiment of the present application. Figure 3 ;

[0048] Fig.23 yes Fig. 22 Enlarged view of G in the middle;

[0049] Fig.24 is a structural schematic diagram of a first bracket in a hinge mechanism provided in an embodiment of the present application;

[0050] Fig.25 It is a simplified schematic diagram of the forces between the first swing arm module and the damping module provided in the embodiment of the present application;

[0051] Fig.26 yes Fig.25 Simplified schematic diagram of the force of the central main load frame;

[0052] Fig. 27 yes Fig.25 A simplified schematic diagram of the force of the first sub-load frame;

[0053] Fig.28 yes Fig.25 A simplified schematic diagram of the force of the second sub-load frame;

[0054] Fig.29 It is a simplified schematic diagram of the forces between the second swing arm module and the damping module provided in the embodiment of the present application;

[0055] Fig.30 It is a simplified schematic diagram of the forces between the third swing arm module and the damping module provided in the embodiment of the present application;

[0056] Fig.31 It is a simplified schematic diagram of the forces between the fourth swing arm module and the damping module provided in an embodiment of the present application.

[0057] The meanings of the figures are as follows:

[0058] 1- Foldable electronic devices;

[0059] 10-hinge mechanism; 20-first housing; 30-second housing; 40-display screen; 41-first part; 42-second part; 43-foldable part;

[0060] 100-base; 110-base shell; 111-positioning column; 112-first assembly hole; 113-fourth assembly hole; 120-cover body; 121-positioning hole; 122-second assembly hole; 123-fifth assembly hole; 124-first connecting part; 125-second connecting part;

[0061] 200-swing arm module; 210-first bracket; 211-third assembly hole; 212-first limiting boss; 220-first swing arm; 231-first shaft hole; 232-second shaft hole; 233-third shaft hole;

[0062] 300-damping module; 310-second bracket; 311-sixth assembly hole; 312-second limiting boss; 320-second swing arm; 321-limiting assembly groove; 330-damping component; 331-first elastic part; 332-second elastic part; 341-first gear; 342-second gear; 351-first sliding member; 352-second sliding member; 361-snapping ring; 362-stop member;

[0063] 410 - first shaft; 411 - slot; 412 - limit baffle; 420 - second shaft; 430 - third shaft; 440 - first locking member; 450 - second locking member. DETAILED DESCRIPTION

[0064] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0065] It should be understood that the "multiple" mentioned in this application refers to two or more. In the description of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solution of this application, the words "first" and "second" are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not limit them to be different.

[0066] In the related art, in the hinge mechanism of the foldable electronic device, the swing arm module and the damping module are respectively connected to the base. In the process of the foldable electronic device becoming increasingly thin and light, the thin design of the swing arm module and the damping module reduces their structural strength. In the process of folding the foldable electronic device, the two shells squeeze the swing arm module and the damping module inward respectively, causing the swing arm module and the damping module to shake, resulting in a large virtual position of the whole foldable electronic device, and increasing the difficulty of controlling the flattening angle. When the shaking is relatively large, the folding trajectory of the swing arm in the hinge mechanism will exceed the preset trajectory, resulting in an anti-arch phenomenon on the display screen. In addition, due to the assembly error during the installation of the swing arm module and the damping module, a certain degree of misalignment between the swing arm module and the damping module in the thickness direction may occur, resulting in a wavy mark in the center of the display screen.

[0067] In order to solve the above problems, the embodiments of the present application provide a hinge mechanism and a foldable electronic device. The hinge mechanism and the foldable electronic device provided in the embodiments of the present application are explained in detail below.

[0068] In the drawings of the present application, leads with solid arrows point to the surface of the device, leads with hollow arrows point to spatial areas within a certain range such as holes, grooves, cavities, etc., and leads with dots point to the device itself.

[0069] Figure 1 A foldable electronic device 1 is provided in an embodiment of the present application. The foldable electronic device 1 includes but is not limited to a cell phone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device or a mobile device, etc. In the embodiment of the present application, the foldable electronic device 1 is described as a cell phone.

[0070] Figure 1 The foldable electronic device 1 is shown in a folded state. Figure 2 The foldable electronic device 1 is shown in a semi-expanded state. Figure 3 The foldable electronic device 1 is shown in an unfolded state. Figure 2 The unfolding angle α of the foldable electronic device 1 is 90 degrees. Figure 3 The unfolding angle β of the foldable electronic device 1 is shown to be 180 degrees.

[0071] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have slight deviations. Figure 2The unfolding angle α of the foldable electronic device 1 shown is 90 degrees, which means that α can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees or 100 degrees. Figure 3 The unfolding angle β of the foldable electronic device 1 shown is 180 degrees, which means that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles described below can be understood in the same way.

[0072] The foldable electronic device 1 shown in the embodiment of the present application is an electronic device that can be folded once. In some other embodiments, the foldable electronic device 1 can also be an electronic device that can be folded multiple times (more than twice). In this case, the foldable electronic device 1 can include multiple parts, two adjacent parts can be folded relatively close to each other until the foldable electronic device 1 is in a folded state, and two adjacent parts can be unfolded relatively far away from each other until the foldable electronic device 1 is in an unfolded state.

[0073] For the convenience of description, in this embodiment, the width direction of the foldable electronic device 1 is defined as the X-axis direction, the length direction of the foldable electronic device 1 is defined as the Y-axis direction, and the thickness direction of the foldable electronic device 1 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction and the Z-axis direction are mutually perpendicular. It should be noted that the dimension in the width direction is not necessarily larger than the dimension in the length direction. It is worth noting that the qualifiers of the relevant positional relationships such as parallel and perpendicular mentioned in this embodiment are all for the current technological level, rather than an absolute and strict definition in the mathematical sense. A small amount of deviation is allowed, and both approximately parallel and approximately perpendicular are acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 degrees and 100 degrees. This embodiment uses directional terms such as "top", "bottom", "left", "right", "front" and "back" to describe the foldable electronic device 1. The orientation is mainly based on the position of the foldable terminal in the attached Figure 3 The display directions are explained in the figure, with the positive direction of the Y axis being the "top", the negative direction of the Y axis being the "bottom", the positive direction of the X axis being the "left", the negative direction of the X axis being the "right", the positive direction of the Z axis being the "front", and the negative direction of the Z axis being the "back".

[0074] See also Figure 4 , Figure 4 yes Figure 3The schematic diagram of the exploded structure of the foldable electronic device 1 is shown. The foldable electronic device 1 includes a first shell 20, a second shell 30, a hinge mechanism 10 and a display screen 40, and the hinge mechanism 10 is connected between the first shell 20 and the second shell 30. Specifically, the first shell 20 and the second shell 30 are respectively installed on both sides of the hinge mechanism 10 in the width direction, that is, the first shell 20 and the second shell 30 are respectively installed on the left and right sides of the hinge mechanism 10. The first shell 20 and the second shell 30 rotate relative to each other through the hinge mechanism 10. The rotation directions of the first shell 20 and the second shell 30 are opposite. The display screen 40 is laid on one side of the first shell 20, the second shell 30 and the hinge mechanism 10, specifically, the display screen 40 is laid on the front side of the first shell 20, the second shell 30 and the hinge mechanism 10. The display screen 40 includes a first part 41, a second part 42 and a foldable part 43. The foldable part 43 is located between the first part 41 and the second part 42, and the foldable part 43 can be bent along the Y-axis direction. The first part 41, the second part 42 and the foldable part 43 together constitute a display screen 40. In the present embodiment, the display screen 40 is a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MIL-LED) display screen, a micro organic light-emitting diode (MIL-LED) display screen, a micro organic light-emitting diode (MIL-LED) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0075] The first housing 20 and the second housing 30 are relatively close to each other, and the display screen 40 is folded, so that the foldable electronic device 1 is folded. When the foldable electronic device 1 is in the folded state, the foldable portion 43 of the display screen 40 is bent, and the first portion 41 and the second portion 42 are arranged opposite to each other. At this time, the display screen 40 is between the first housing 20 and the second housing 30, which can greatly reduce the probability of the display screen 40 being damaged, and effectively protect the display screen 40.

[0076] Please also read Figure 2 and Figure 4, the first housing 20 and the second housing 30 rotate relative to each other through the hinge mechanism 10, and the first housing 20 and the second housing 30 move away from each other to drive the display screen 40 to unfold, so that the foldable electronic device 1 is unfolded to a semi-expanded state. When the foldable electronic device 1 is in the semi-expanded state, the first housing 20 and the second housing 30 unfold to an angle of α, the first part 41 and the second part 42 unfold relative to each other, and drive the foldable part 43 to unfold. At this time, the angle between the first part 41 and the second part 42 is α.

[0077] Please also read Figure 3 and Figure 4 , the first shell 20 and the second shell 30 rotate relative to each other through the hinge mechanism 10, the first shell 20 and the second shell 30 can adopt the same structure, and the first shell 20 and the second shell 30 can be arranged in mirror symmetry with respect to the hinge mechanism 10. The first shell 20 and the second shell 30 are relatively far away from each other, and the display screen 40 is further unfolded until the foldable electronic device 1 is flattened. When the foldable electronic device 1 is in a flattened state, the angle between the first shell 20 and the second shell 30 is β. The foldable part 43 is unfolded, and the first part 41 and the second part 42 are relatively unfolded. At this time, the angles between the first part 41, the second part 42 and the foldable part 43 are all β, and the display screen 40 has a large display area, realizing a large-screen display of the foldable electronic device 1, and improving the user experience. It should be noted that the angle α and the angle β are both the angles between the first shell 20 and the second shell 30, which are only used to distinguish the different angles between the first shell 20 and the second shell 30 of the foldable electronic device 1 in different states. Among them, the angle α refers to the angle between the first shell 20 and the second shell 30 when the foldable electronic device 1 is in a semi-expanded state; the angle β refers to the angle between the first shell 20 and the second shell 30 when the foldable electronic device 1 is in an expanded state.

[0078] It should be understood that the foldable electronic device 1 shown in the embodiment of the present application is folded inwardly, and the display screen 40 of the foldable electronic device 1 in the folded state is located on the inner side of the hinge mechanism 10. In some other embodiments, the foldable electronic device 1 can also be folded outwardly, and in this case, the display screen 40 of the foldable electronic device 1 in the folded state is located on the outer side of the hinge mechanism 10.

[0079] like Figure 5 , Figure 6 and Figure 7As shown, the embodiment of the present application provides a hinge mechanism 10, including: a base 100, a swing arm module 200 and a damping module 300, the swing arm module 200 includes a first bracket 210 and a first swing arm 220, the first swing arm 220 is rotatably mounted on the first bracket 210, the damping module 300 includes a second bracket 310, a first shaft 410, a second swing arm 320 and a damping component 330, the second swing arm 320 is rotatably mounted on the second bracket 310, and the damping component 330 is installed on the second bracket 310, and the damping component 330 is used to provide damping force for the second swing arm 320. The first bracket 210 and the second bracket 310 are both connected to the base 100. The first bracket 210 and the second bracket 310 are arranged on the base 100 along the length direction of the base 100. The first bracket 210 is provided with a first axial hole 231, and the second bracket 310 is connected to the first shaft body 410. At least a part of the first shaft body 410 is located in the first axial hole 231.

[0080] The swing arm module 200 includes a first bracket 210, and the swing arm module 200 also includes a first swing arm 220. The first swing arm 220 is rotatably mounted on the first bracket 210, and the first bracket 210 is used to provide an installation space for the first swing arm 220. The first bracket 210 is connected to the base 100, so that the first swing arm 220 is rotatably connected to the base 100, that is, the first swing arm 220 can rotate relative to the base 100. In a specific embodiment, Figure 8 As shown, two first swing arms 220 are mounted on a first bracket 210, the first bracket 210 is mounted on the base 100, and the two first swing arms 220 are respectively rotatably connected to the first bracket 210, one of the first swing arms 220 extends to the left side of the base 100, and the other first swing arm 220 extends to the right side of the base 100. When the hinge mechanism 10 is applied to a foldable electronic device 1, the base 100 is located between two shells, and the two first swing arms 220 are respectively used to connect to two shells located on the left and right sides of the base 100.

[0081] The damping module 300 includes a second bracket 310 and a first shaft 410. The damping module 300 also includes a second swing arm 320 and a damping component 330. The second swing arm 320 is rotatably mounted on the second bracket 310. The damping component 330 is mounted on the second bracket 310. The second bracket 310 provides a mounting space for the second swing arm 320 and the damping component 330. The second bracket 310 is connected to the base 100, so that the second swing arm 320 is rotatably connected to the base 100, that is, the second swing arm 320 can rotate relative to the base 100. In a specific embodiment, as Figure 8As shown, two second swing arms 320 are mounted on a second bracket 310, and the second bracket 310 is mounted on the base 100. The two second swing arms 320 are respectively connected to the second bracket 310 for rotation, wherein one second swing arm 320 extends to the left side of the base 100, and the other second swing arm 320 extends to the right side of the base 100. The damping component 330 is mounted on the second bracket 310, and during the rotation of the second swing arm 320 relative to the second bracket 310, the damping component 330 provides a damping force for the second swing arm 320. When the hinge mechanism 10 is applied to a foldable electronic device 1, the base 100 is located between two shells, and the two second swing arms 320 are respectively connected to the two shells located on the left and right sides of the base 100, and during the rotation of the shell relative to the base 100, the second swing arm 320 connected thereto is driven to rotate, and the damping force applied by the damping component 330 on the second swing arm 320 is also transmitted to the shell connected to the second swing arm 320.

[0082] The second bracket 310 is connected to the first shaft 410, and the second bracket 310 and the first shaft 410 can be connected in a rotational connection or a non-rotational connection. In one implementation, the second bracket 310 and the first shaft 410 are connected in a rotational connection. In one implementation, the second bracket 310 and the first shaft 410 are connected in a non-rotational connection. The second bracket 310 and the first shaft 410 can be connected in any connection mode such as welding, bonding, threaded connection, spline connection, etc., so that the second bracket 310 and the first shaft 410 cannot rotate relative to each other, that is, the first shaft 410 and the second bracket 310 are relatively limited in the rotation direction. In another implementation, the second bracket 310 is rotatably connected to the first shaft body 410. For example, a first through hole penetrating the second bracket 310 along the length direction of the base 100 may be provided on the second bracket 310, so that a portion of the first shaft body 410 extends into the first through hole, and an end of the first shaft body 410 extends out of the first through hole to extend into the first shaft hole 231, so that the second bracket 310 and the first shaft body 410 are rotatably connected, or the second bracket 310 and the first shaft body 410 may be rotatably connected through a bearing. Alternatively, a first through hole penetrating the second bracket 310 along the length direction of the base 100 may be provided on the second bracket 310, so that a portion of the first shaft body 410 is located in the first through hole, and at least one end of the first shaft body 410 extends out of the first through hole to extend into the first shaft hole 231, and the second bracket 310 and the first shaft body 410 are connected through a bearing.

[0083] The hinge mechanism 10 of the embodiment of the present application is applied to a foldable electronic device 1. In the hinge mechanism 10 provided in the embodiment of the present application, the first bracket 210 and the second bracket 310 are respectively connected to the base 100, and the first bracket 210 is connected to the first shaft body 410, and the first shaft body 410 extends into the first shaft hole 231 of the second bracket 310. The first shaft hole 231 plays a radial limiting role for the first shaft body 410, so that the first bracket 210 and the second bracket 310 play a relative limiting role in the radial direction of the first shaft body 410 through the cooperation of the first shaft body 410 and the first shaft hole 231. The first bracket 210 and the second bracket 310 are relatively limitedly connected through the first shaft body 410. The first shaft body 410 connects the base 100, the first bracket 210 and the second bracket 310 into an integrated structure to improve the first bracket The connection stability between the first bracket 210 and the second bracket 310 on the base 100 is reduced, the relative shaking between the first bracket 210 and the second bracket 310 is reduced, and the shaking of the first bracket 210 relative to the base 100 and the second bracket 310 relative to the base 100 are reduced. Since the shaking of the first bracket 210 and the second bracket 310 relative to the base 100 are respectively reduced, after the hinge mechanism 10 is applied to the foldable electronic device 1, the shaking of the display screen 40 located on one side of the base 100 caused by the shaking of the first bracket 210 and the second bracket 310 is reduced, thereby reducing the possibility of the display screen 40 being arched (the display screen 40 bulges toward the side away from the base 100) and the appearance of wavy marks, and reducing the problem of poor display effect caused by the change of display angle of the display screen 40 due to the wavy marks. In addition, in the hinge mechanism 10 provided in the embodiment of the present application, the swing arm module 200 and the damping module 300 are limitedly connected by the first axis 410, thereby improving the overall structural strength of the first bracket 210 and the second bracket 310, and improving the synchronization between the first bracket 210 and the second bracket 310, thereby improving the hinge mechanism 10's ability to resist falling, impact, and bending.

[0084] like Figure 8 As shown, in some implementations, the base 100 includes a base shell 110 and a cover body 120, the base shell 110 and the cover body 120 are connected and surrounded to form a receiving cavity, and the first bracket 210 and the second bracket 310 are both located in the receiving cavity. The base shell 110 is located on the side away from the display screen 40, and the cover body 120 is located on the side close to the display screen 40, or in other words, the cover body 120 is located on the front side of the base shell 110. A receiving groove is formed in the base shell 110, which can be used to limit the first bracket 210 and the second bracket 310 to a certain extent. Figure 8In the embodiment, the edge of the base shell 110 has a flange folded forward, and the base shell 110 is surrounded by the flange to form a receiving groove with a front opening. During the assembly process of the hinge mechanism 10, the swing arm module 200 and the damping module 300 are assembled first, and then the swing arm module 200 and the damping module 300 are placed in the receiving groove through the front opening of the receiving groove, so that the first bracket 210 and the second bracket 310 are located in the receiving groove, and a part of the first swing arm 220 extends out of the receiving groove, and a part of the second swing arm 320 extends out of the receiving groove, and the cover body 120 is covered at the front opening of the receiving groove, so that the receiving groove is formed into a receiving cavity by the cover body 120, and the first bracket 210 and the second bracket 310 are both located between the cover body 120 and the base shell 110. The cover body 120 and the base shell 110 respectively limit the first bracket 210 and the second bracket 310 at the front and rear sides.

[0085] In this arrangement, since the base 100 includes the base shell 110 and the cover body 120, the base shell 110 and the cover body 120 respectively limit the first bracket 210 and the second bracket 310 from the front and rear sides, the limiting effect is good, and it is easy to assemble.

[0086] The base shell 110 and the cover body 120 may be detachably connected or fixedly connected. For example, the base shell 110 and the cover body 120 may be connected by one or more connection methods such as bolt connection, welding, bonding, and clamping.

[0087] In some embodiments, one of the cover body 120 and the base shell 110 is provided with a positioning column 111, and the other is provided with a positioning hole 121, and the positioning column 111 is inserted in the positioning hole 121. During the assembly process, the cooperation between the positioning column 111 and the positioning hole 121 allows the cover body 120 and the base shell 110 to be initially positioned to facilitate subsequent connection operations. It is worth noting that the positioning column 111 and the positioning hole 121 are both provided in the area of ​​the cover body 120 and the base shell 110 that is not used to accommodate the first bracket 210 and the second bracket 310. In one example, the base shell 110 is provided with a positioning column 111 on one side facing the cover body 120, and the positioning hole 121 is provided through the cover body 120 along the thickness direction. The positioning column 111 is provided at a position in the receiving groove that is not used to accommodate the first bracket 210 and the second bracket 310, and the positioning column 111, the first bracket 210 and the second bracket 310 are arranged at intervals in the receiving groove.

[0088] In some feasible implementations, the base 100 can be limited to the first bracket 210 by providing a first limiting groove matching the outer contour of the first bracket 210 on the base shell 110 or the cover body 120, and the first limiting groove can be installed by interference fit with the first bracket 210. And the base 100 can be limited to the second bracket 310 by providing a second limiting groove matching the outer contour of the second bracket 310 on the base shell 110 or the cover body 120, and the second limiting groove can be installed by interference fit with the second bracket 310.

[0089] In other embodiments, the first bracket 210 is fixedly connected to at least one of the base shell 110 and the cover 120 to improve the connection stability between the first bracket 210 and the base 100. The second bracket 310 is fixedly connected to at least one of the base shell 110 and the cover 120 to improve the connection stability between the second bracket 310 and the base 100.

[0090] The first bracket 210 may be connected to the base shell 110 and / or the cover body 120 by means of bolts, buckles, or other locking members, or by means of welding, bonding, or other means. The second bracket 310 and / or the base shell 110 or the cover body 120 may be connected to the base shell 110 and / or the cover body 120 by means of bolts, buckles, or other locking members, or by means of welding, bonding, or other means.

[0091] In some implementations, the first bracket 210 is connected to at least one of the base shell 110 and the cover 120 via the first locking member 440. Exemplarily, the first bracket 210 is connected to the base shell 110 via the locking member, the first bracket 210 may be connected to the cover 120 via the locking member, or the first bracket 210, the base shell 110 and the cover 120 may be connected via the locking member.

[0092] like Figures 8 to 12As shown, in a specific setting mode, a first assembly hole 112 is provided on the base shell 110, a second assembly hole 122 is provided on the cover body 120, and a third assembly hole 211 is provided on the first bracket 210. One of the first assembly hole 112 and the second assembly hole 122 is a threaded hole, and the first locking member 440 has an external thread matching the first threaded hole. The first locking member 440 can be a structure with an external thread such as a bolt or a screw. Exemplarily, the first assembly hole 112 is a threaded hole, the second assembly hole 122 is a light hole, and the third assembly hole 211 is a light hole and passes through the first bracket 210 along the thickness direction of the base 100. The first locking member 440 passes through the second assembly hole 122 and the third assembly hole 211 and then is screwed into the first assembly hole 112, so that the first bracket 210 is clamped and fixed between the base shell 110 and the cover body 120. In another specific embodiment, the first assembly hole 112 is a light hole, the second assembly hole 122 is a threaded hole, the third assembly hole 211 is a light hole and passes through the first bracket 210 along the thickness direction of the base 100, and the first locking member 440 passes through the first assembly hole 112 and the third assembly hole 211 and then screws into the second assembly hole 122, thereby clamping and fixing the first bracket 210 between the base shell 110 and the cover body 120. In some examples, at least one of the base shell 110 and the cover body 120 is provided with a first stud, and the threaded hole is provided on the first stud. The end of the first stud can abut against the first bracket 210, or the first stud can be inserted into the third assembly hole 211, and the first locking member 440 passes through the light hole and is screwed into the threaded hole. The first locking member 440 connects the cover body 120 and the base shell 110, and clamps the first bracket 210 between the cover body 120 and the base shell 110. The cover body 120 and the base shell 110 limit the first bracket 210 from the front and back sides, and the cooperation of the first stud and the third assembly hole 211 limits the bracket in a radial direction perpendicular to the first stud, so that the base shell 110, the cover body 120 and the first bracket 210 are connected.

[0093] In some examples, a plurality of third assembly holes 211 are provided on the first bracket 210, and a plurality of first assembly holes 112 are provided on the base shell 110 corresponding to the plurality of third assembly holes 211, some of the plurality of first assembly holes 112 are threaded holes and some are light holes, and a plurality of first studs are provided on the base shell 110 corresponding to the third assembly holes 211, the number of the first studs is the same as the number of the threaded holes, and the threaded holes are provided in the first studs in a one-to-one correspondence. A plurality of second assembly holes 122 are provided on the cover body 120 corresponding to the plurality of third assembly holes 211, the second assembly holes 122 in the cover body 120 that are opposite to the first assembly holes 112 of the threaded holes are light holes, a first stud is provided at a position opposite to the first assembly holes 112 of the light holes, a second assembly hole 122 is provided in the first stud, and the second assembly hole 122 located in the first stud is a threaded hole. The first studs on the cover body 120 and the base shell 110 are both provided in the corresponding third assembly holes 211. In this arrangement, a first bracket 210 is connected to the base shell 110 and the cover body 120 through a plurality of first locking members 440, some of the first locking members 440 pass through the second assembly hole 122 and are screwed into the first assembly hole 112, and some of the first locking members 440 pass through the first assembly hole 112 and are screwed into the second assembly hole 122. That is to say, among the plurality of first locking members 440, some of the first locking members 440 abut against the cover body 120 and are connected to the base shell 110 through threads, and another portion of the first locking members 440 abut against the base shell 110 and are connected to the cover body 120 through threads, and this connection method improves the connection stability between the first bracket 210, the cover body 120 and the base shell 110.

[0094] In some embodiments, a third assembly hole 211 may be provided at the top and bottom of the first bracket 210 , or at the middle of the first bracket 210 , or at the top, middle and bottom of the first bracket 210 .

[0095] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.13 As shown, in some embodiments, the second bracket 310 is connected to at least one of the base shell 110 and the cover body 120 through the second locking member 450. In some implementations, the second bracket 310 is connected to at least one of the base shell 110 and the cover body 120 through the second locking member 450. Exemplarily, the second bracket 310 is connected to the base shell 110 through the locking member, the second bracket 310 can be connected to the cover body 120 through the locking member, or the second bracket 310, the base shell 110 and the cover body 120 can be connected through the locking member.

[0096] like Figures 8 to 11 , Fig.13As shown, in a specific setting mode, a fourth assembly hole 113 is provided on the base shell 110, a fifth assembly hole 123 is provided on the cover body 120, and a sixth assembly hole 311 is provided on the second bracket 310. One of the fourth assembly hole 113 and the fifth assembly hole 123 is a threaded hole, and the second locking member 450 has an external thread matching the first threaded hole. The second locking member 450 can be a structure with an external thread such as a bolt or a screw. Exemplarily, the fourth assembly hole 113 is a threaded hole, the fifth assembly hole 123 is a light hole, and the sixth assembly hole 311 is a light hole and penetrates the second bracket 310 along the thickness direction of the base 100. The second locking member 450 passes through the fifth assembly hole 123 and the sixth assembly hole 311 and then is screwed into the fourth assembly hole 113, so that the second bracket 310 is clamped and fixed between the base shell 110 and the cover body 120. In another specific embodiment, the fourth assembly hole 113 is a light hole, the fifth assembly hole 123 is a threaded hole, the sixth assembly hole 311 is a light hole and passes through the second bracket 310 along the thickness direction of the base 100, and the second locking member 450 passes through the fourth assembly hole 113 and the sixth assembly hole 311 and then screws into the fifth assembly hole 123, thereby clamping and fixing the second bracket 310 between the base shell 110 and the cover body 120. In some examples, at least one of the base shell 110 and the cover body 120 is provided with a first stud, and the threaded hole is provided on the first stud. The end of the first stud can abut against the second bracket 310, or the first stud can be inserted into the sixth assembly hole 311, and the second locking member 450 passes through the light hole and is screwed into the threaded hole. The second locking member 450 connects the cover body 120 and the base shell 110, and the second bracket 310 is clamped between the cover body 120 and the base shell 110. The cover body 120 and the base shell 110 limit the second bracket 310 from the front and back sides, and the cooperation of the first stud and the sixth assembly hole 311 limits the bracket in a radial direction perpendicular to the first stud, so that the base shell 110, the cover body 120 and the second bracket 310 are connected.

[0097] The number of the sixth assembly holes 311 provided on the second bracket 310 can be selected according to the size of the second bracket 310. Fig.13 As shown, the second bracket 310 is provided with a sixth assembly hole 311. In some other embodiments, when the second bracket 310 is longer in width or length, more sixth assembly holes 311 may be provided on the second bracket 310.

[0098] In some implementations, the first bracket 210 is welded or bonded to at least one of the base shell 110 and the cover 120 .

[0099] In some implementations, the second bracket 310 is welded or bonded to at least one of the base shell 110 and the cover 120 .

[0100] In a specific embodiment, Figure 12 to Figure 14 As shown, the first bracket 210 is connected to the base shell 110 and the cover body 120 through the first locking member 440, and the first bracket 210 is welded to the cover body 120. The second bracket 310 is connected to the base shell 110 and the cover body 120 through the second locking member 450, and the second bracket 310 is welded to the cover body 120. Exemplarily, the cover body 120 is provided with a first connecting portion 124 and a second connecting portion 125, and the first bracket 210 has two first limiting bosses 212 arranged opposite to each other, and the two first limiting bosses 212 are spaced apart in the width direction of the base 100. After the hinge mechanism 10 is assembled, the two first limiting bosses 212 are respectively located on the left and right sides of the first connecting portion 124 (the first connecting portion 124 is on both sides of the width direction of the base 100), one of the limiting bosses is welded to the left side of the first connecting portion 124, and the other first limiting boss 212 is welded to the right side of the first connecting portion 124. The second bracket 310 has two second limiting bosses 312 arranged opposite to each other, and the two second limiting bosses 312 are spaced apart in the width direction of the base 100. After the hinge mechanism 10 is assembled, the two second limiting bosses 312 are respectively located on the left and right sides of the second connecting part 125 (on both sides of the second connecting part 125 along the width direction of the base 100), one of the limiting bosses is welded to the left side surface of the second connecting part 125, and the other second limiting boss 312 is welded to the right side surface of the second connecting part 125. In this arrangement, during the assembly of the hinge mechanism 10, the first bracket 210 and the second bracket 310 can be first installed in the base shell 110, and then the cover body 120 is connected to the base shell 110. After the connection between the cover body 120 and the base shell 110 is completed, the first bracket 210 and the cover body 120 are welded, and the second bracket 310 and the cover body 120 are welded. The arrangement of the first limiting boss 212 and the second limiting boss 312 allows, after the cover body 120 is snapped into the base shell 110, the welding area between the first limiting boss 212 and the cover body 120, and the welding area between the second limiting boss 312 and the cover body 120 are both exposed on the outside of the cover body 120, which is convenient for the welding operation.

[0101] like Fig.15As shown, in some implementations, there are multiple swing arm modules 200, and damping modules 300 are respectively arranged between adjacent swing arm modules 200. The first bracket 210 is provided with first shaft holes 231 at both ends in the length direction of the base 100; and the first shaft body 410 extends into the corresponding first shaft holes 231 at both ends in the length direction of the base 100. In this arrangement, the damping module 300 is limitedly connected to the swing arm modules 200 at least on both sides of the damping module 300 through the first shaft body 410, so that at least three modules are connected to form an integral structure, thereby realizing the strength integration of multiple modules. Exemplarily, when the number of swing arm modules 200 is two, at least one damping module 300 is provided, and the two swing arm modules 200 are respectively located on both sides of the damping module 300 in the length direction of the base 100, and the first shaft body 410 passes through the second bracket 310, and the two ends of the first shaft body 410 respectively extend out of the second bracket 310 and extend into the corresponding first shaft hole 231.

[0102] In a specific implementation, when the number of swing arm modules 200 is equal to or greater than four, the number of damping modules 300 is equal to or greater than two, and the plurality of swing arm modules 200 and the plurality of damping modules 300 can be divided into at least two assembly groups, each group including at least two swing arm modules 200 and at least one damping module 300, and at least one damping module 300 is provided between two adjacent swing arm modules 200 in each group. Fig.15 In the embodiment, there are two assembly groups, one of which includes two swing arm modules 200 and one damping module 300. In the length direction of the base 100, the two swing arm modules 200 are respectively located on both sides of the damping module 300, and the two ends of the first shaft body 410 in the damping module 300 respectively extend into the first shaft hole 231 of the first bracket 210 of the two swing arm modules 200. In the assembly group, three modules (two swing arm modules 200 and one damping module 300) are connected into an integrated structure. Another assembly group includes four swing arm modules 200 and three damping modules 300. The swing arm modules 200 and the damping modules 300 are arranged alternately, and a damping module 300 is arranged between two adjacent swing arm modules 200. The two ends of the first shaft body 410 in the damping module 300 respectively extend into the first shaft hole 231 of the first bracket 210 of the two swing arm modules 200. In the assembly group, seven modules (four swing arm modules 200 and three damping modules 300) are connected into an integrated structure.

[0103] like Fig.13 , Fig.16 , Fig.17 and Fig.18As shown, in some implementations, the damping component 330 includes a first elastic portion 331, the first elastic portion 331 is sleeved on the outside of the first shaft 410, and the second swing arm 320 is configured to compress the first elastic portion 331 during the rotation process. In this arrangement, the second swing arm 320 compresses the first elastic portion 331 during the rotation process, and the elastic force of the first elastic portion 331 is the damping force acting on the second swing arm 320, thereby providing a damping feeling for the rotation process of the second swing arm 320. The first shaft 410 provides an installation space for the first elastic portion 331, making the structure of the damping module 300 more compact.

[0104] like Fig.13 , Fig.16 , Fig.17 and Fig.18 As shown, in a specific embodiment, the damping module 300 includes a first sliding member 351, a first cam surface is provided on the side of the first sliding member 351 facing the second swing arm 320, a second cam surface is provided on the side of the second swing arm 320 facing the first sliding member 351, and the first cam surface and the second cam surface abut against each other. The first shaft body 410 passes through the first sliding member 351, and one end of the first elastic portion 331 abuts against the side of the first sliding member 351 away from the second swing arm 320. Both the first cam surface and the second cam surface are annular surfaces with crest surfaces and trough surfaces arranged in sequence along the circumferential direction, the crest surface of the first cam surface is a convex arc surface in the direction close to the second cam surface, the trough surface is a concave arc surface in the direction away from the second cam surface, the crest surface of the second cam surface is a convex arc surface in the direction close to the first cam surface, and the trough surface of the second cam surface is a concave arc surface in the direction away from the first cam surface. At the same time, the peak surface of the first cam surface abuts against the trough surface of the second cam surface, and the trough surface of the first cam surface abuts against the peak surface of the second cam surface. In this case, the total length of the first sliding member 351 and the second swing arm 320 in the length direction of the base 100 is relatively short, the pressure of the first sliding member 351 on the first elastic part 331 is relatively small, and the deformation of the first elastic part 331 is relatively small, that is, the damping force of the first elastic part 331 on the second swing arm 320 is relatively small. While the peak surface of the first cam surface abuts against the peak surface of the second cam surface, the trough surface of the first cam surface and the trough surface of the second cam surface are relatively spaced apart. In this case, the total length of the first sliding member 351 and the second swing arm 320 in the length direction of the base 100 is relatively long, that is, the second swing arm 320 drives the first sliding member 351 to move toward the first elastic part 331, so that the compression amount of the first elastic part 331 becomes larger, the deformation amount of the first elastic part 331 is relatively small, and the damping force of the first elastic part 331 on the second swing arm 320 is relatively large.

[0105] In some embodiments, see Fig.17 and Fig.18 The damping module 300 includes two first sliding members 351, which are respectively mounted on opposite sides of the second swing arm 320 in the length direction of the base 100. The first elastic parts 331 are respectively arranged on the sides of the two first sliding members 351 away from the second swing arm 320. The first shaft 410 penetrates the second swing arm 320 and the first sliding members 351 on both sides of the second swing arm 320. The first elastic parts 331 on both sides of the second swing arm 320 are sleeved on the first shaft 410, and the first shaft 410 plays a guiding role for the first elastic parts 331 during the compression process. During the rotation of the second swing arm 320, the two first sliding members 351 are pushed to move away from the second swing arm 320, so that the total length of the two first sliding members 351 and the second swing arm 320 increases, thereby compressing the first elastic parts 331 on both sides simultaneously, and the first elastic parts 331 on both sides of the second swing arm 320 are compressed, so that the damping force is applied to the second swing arm 320 through the first elastic parts 331 on both sides. In this arrangement, the number of the first elastic parts 331 is relatively large, so that when the second swing arm 320 is at the same rotation angle, more first elastic parts 331 are compressed to apply a greater damping force to the second swing arm 320.

[0106] In some embodiments, please refer to Fig.13 and Fig.16The damping module 300 further includes a second sliding member 352, which is located on the side of the second swing arm 320 away from the first sliding member 351, and the first shaft 410 passes through the second sliding member 352. A third cam surface is provided on the side of the second sliding member 352 facing the second swing arm 320, and a fourth cam surface is provided on the side of the second swing arm 320 facing the second sliding member 352. The structure and matching relationship of the third cam surface and the fourth cam surface are the same as the structure and matching relationship of the first cam surface and the second cam surface. When the wave crest surface of the first cam surface contacts the wave trough surface of the second cam surface, the wave crest surface of the third cam surface contacts the wave trough surface of the fourth cam surface. At this time, the total length of the first sliding member 351, the second swing arm 320 and the second sliding member 352 is the smallest, the pressure on the first elastic part 331 is the smallest, and the compression amount of the first elastic part 331 is the smallest. When the wave crest surface of the first cam surface contacts the wave crest surface of the second cam surface, the wave crest surface of the third cam surface contacts the wave crest surface of the fourth cam surface. At this time, the total length of the first sliding member 351, the second swing arm 320 and the second sliding member 352 is the largest, the pressure on the first elastic part 331 is the largest, the compression amount of the first elastic part 331 is the largest, and the damping force applied by the first elastic part 331 to the second swing arm 320 is the largest. The first sliding member 351 and the second sliding member 352 are respectively arranged on both sides of the second swing arm 320, so that the total length of the second swing arm 320, the first sliding member 351 and the second sliding member 352 has a larger variation range, and the compression amount of the first elastic part 331 is larger.

[0107] It is worth noting that the second swing arm 320 may be provided with both the first cam surface and the third cam surface, or may be provided with only one of the first cam surface and the third cam surface. Alternatively, the second swing arm 320 may not be provided with a cam surface, but may compress the first elastic portion 331 by other matching methods such as bevel matching.

[0108] like Fig.13 and Fig.16 As shown, in some implementations, the damping module 300 further includes a second shaft 420, the damping component 330 further includes a second elastic portion 332, the second shaft 420 is mounted on the second bracket 310, the second elastic portion 332 is sleeved on the outside of the second shaft 420, the second swing arm 320 is configured to compress the second elastic portion 332 during the rotation process, and the second shaft 420 is arranged parallel to the first shaft 410. In this arrangement, the second swing arm 320 compresses the first elastic portion 331 and the second elastic portion 332 during the rotation process, and the elastic forces of the first elastic portion 331 and the second elastic portion 332 both act on the second swing arm 320, thereby providing a relatively larger damping force for the second swing arm 320.

[0109] In some implementations, a first sliding member 351 is disposed on one side of the second swing arm 320, the first shaft 410 passes through the first sliding member 351, and the second shaft 420 passes through the first sliding member 351, and the first elastic portion 331 and the second elastic portion 332 both abut against the first sliding member 351. During the rotation of the second swing arm 320, the first sliding member 351 moves in the length direction of the base 100 to synchronously compress the first elastic portion 331 and the second elastic portion 332, and the elastic forces of the first elastic portion 331 and the second elastic portion 332 act on the first sliding member 351 and are transmitted to the second swing arm 320 through the first sliding member 351.

[0110] One or more first shaft bodies 410 may be disposed on one second bracket 310. In some implementations, two first shaft bodies 410 are disposed on one second bracket 310, and the two first shaft bodies 410 are disposed at intervals in the width direction of the base 100, and the second shaft body 420 is located between the two first shaft bodies 410. Since the first shaft body 410 passes through the second bracket 310 and the first bracket 210, and passes through the first sliding member 351 and the second swing arm 320, the length of the first shaft body 410 is greater than the length of the second shaft body 420, and the number of structures sleeved on the first shaft body 410 is relatively large, and the two first shaft bodies 410 are disposed outside the two second shaft bodies 420, that is, the two first shaft bodies 410 are located in the area of ​​the second bracket 310 that is relatively closer to the edge in the width direction of the base 100, so that the limiting connection between the first bracket 210 and the second bracket 310 is located at the two end edge areas in the width direction of the base 100, and the connection stability is stronger.

[0111] like Fig.19 As shown, in some implementations, the first bracket 210 is provided with a second shaft hole 232, and at least one end of the second shaft body 420 extends out of the second bracket 310 and is located in the corresponding second shaft hole 232. In this configuration, the first bracket 210 and the second bracket 310 are not only connected by the first shaft body 410, but also connected by the second shaft body 420, thereby improving the connection strength between the first bracket 210 and the second bracket 310 and enhancing the connection stability between the first bracket 210 and the second bracket 310.

[0112] In some implementations, the first bracket 210 is provided with a first opening, such as Fig.19As shown, the second shaft hole 232 is connected to the first opening, and the first opening is located on one side of the second shaft hole 232 in the thickness direction of the base 100, and part of the structure of the first shaft body 410 in the thickness direction extends out of the second shaft hole 232 through the first opening. In this arrangement, the cross-sectional shape of the inner wall of the second shaft hole 232 is an unclosed circle, and the size of the second shaft hole 232 in the thickness direction of the base 100 is smaller than the diameter of the first shaft body 410, so that the thickness of the area where the second shaft hole 232 is provided on the first bracket 210 can be relatively thinner. The size of the second shaft hole 232 in the thickness direction of the base 100 is the distance between the side wall of the second shaft hole 232 away from the first opening and the plane where the side wall on the side of the first bracket 210 where the first opening is provided is located. In some embodiments, the size of the second shaft hole 232 in the thickness direction of the base 100 is smaller than the diameter of the first shaft body 410 and larger than the radius of the first shaft body 410. The inner wall of the second shaft hole 232 not only limits the first shaft body 410 in the axial direction, but also limits the first shaft body 410 in the radial direction. The second shaft hole 232 is provided by using a relatively thinner base shell 110 of the first bracket 210 .

[0113] like Fig.13 , Fig.16 and Fig.19 As shown, in some implementations, the number of the first shaft body 410 and the number of the second swing arms 320 are both two, and the two second swing arms 320 are sleeved on the two first shaft bodies 410 in a one-to-one correspondence, and the second swing arms 320 are provided with a first gear 341, and the two first gears 341 are meshed. Since the first gear 341 is provided on the second swing arm 320, the first gears 341 on the two second swing arms 320 are meshed, so that the two second swing arms 320 can rotate synchronously, and thus the damping module 300 also plays a synchronization role.

[0114] In this arrangement, since the second swing arm 320 is sleeved on the first shaft 410, and the first shaft 410 is installed on the first bracket 210, the second swing arm 320 can be rotatably connected to the second bracket 310 through the first shaft 410. In a feasible arrangement, the first shaft 410 can be non-rotatably connected to the second swing arm 320, and the first shaft 410 is rotatably connected to the second bracket 310. Alternatively, in another feasible embodiment, the first shaft 410 is rotatably connected to the second swing arm 320, and the first shaft 410 is non-rotatably connected to the second bracket 310. Alternatively, in another feasible embodiment, the first shaft 410 is rotatably connected to the second swing arm 320, and the first shaft 410 is rotatably connected to the second bracket 310. Alternatively, in another feasible embodiment, the first shaft 410 is rotatably connected to the second swing arm 320, and the first shaft 410 is rotatably connected to the second bracket 310. The above non-rotatably connected can be realized by a spline or a fixed connection. Since the second swing arm 320 is rotatably connected to the second bracket 310 through the first shaft 410, the structure of the damping module 300 is more compact.

[0115] like Fig.13 , Fig.16 and Fig.19 As shown, in some implementations, the damping module 300 further includes a second gear 342 and a third shaft 430, the second gear 342 is sleeved on the outside of the third shaft 430, the second gear 342 is rotatably mounted on the second bracket 310 through the third shaft 430, and the two first gears 341 are meshed through the second gear 342. In this arrangement, even if the distance between the two second swing arms 320 in the width direction of the base 100 increases, the first gear 341 with the same radius can be used for transmission connection, and the two first gears 341 are connected by the second gear 342, so that the two second swing arms 320 that are far apart can be connected by transmission without increasing the size of the first gear 341. Since the radius of the first gear 341 does not need to be increased, the thickness of the base 100 is relatively small. The number of the second gears 342 can be one or more, and the number of the second gears 342 is set according to the radius of the first gear 341, the radius of the second gear 342 and the distance between the two second swing arms 320. Exemplarily, there are two second gears 342 , and the two second gears 342 are meshed with each other, wherein one of the second gears 342 is meshed with one of the first gears 341 , and the other second gear 342 is meshed with the other first gear 341 .

[0116] The first gear 341 may be an incomplete gear, that is, the first gear 341 is not provided with a tooth structure at 360° in the circumferential direction, and the center angle of the area where the tooth structure is provided on the first gear 341 is less than 360°. When the hinge mechanism 10 is applied to the foldable electronic device 1, the rotation angle required by the foldable electronic device 1 is usually less than 360°, so the center angle of the meshing contact area between the first gear 341 and the second gear 342 is less than 360°. In a feasible embodiment, the first gear 341 and the second swing arm 320 are connected as an integral structure, and a tooth structure is provided on the side of the second swing arm 320 facing the second gear 342. The center angle of the area where the tooth structure is provided is less than 180°, and the area where the tooth structure is provided on the second swing arm 320 forms the first gear 341.

[0117] When the first shaft 410 and the second bracket 310 are non-fixedly connected, in some implementations, the first shaft 410 has a transmission section, the cross section of the transmission section is non-circular, and the second swing arm 320 has a transmission hole matching the transmission section. Since the cross section of the transmission section is non-circular, and the shape of the transmission hole of the second swing arm 320 is also non-circular, the second swing arm 320 can drive the transmission section through the inner wall of the transmission hole, so that the second swing arm 320 can drive the first shaft 410 to rotate during the rotation process, that is, there will be no relative rotation between the first shaft 410 and the second swing arm 320, that is, the first shaft 410 and the second swing arm 320 are non-rotationally connected.

[0118] In one implementation, Fig.13 and Fig.16 As shown, the damping module 300 includes a second swing arm 320, a second bracket 310, a first sliding member 351, a second sliding member 352, a first gear 341, a second gear 342, a first elastic portion 331, a second elastic portion 332, a stopper 362, a snap ring 361, a first shaft 410, a second shaft 420 and a third shaft 430. The first shaft 410, the second shaft 420 and the third shaft 430 are all installed on the second bracket 310. A limit stopper 412 is provided at one end of the first shaft 410 in the length direction of the base 100, and a slot 411 is provided at the other end. The first shaft 410 is provided with One side of the slot 411 passes through the stopper 362, the first elastic portion 331, the first sliding member 351, the second swing arm 320, the second bracket 310 and the second sliding member 352 in sequence, so that the limit baffle 412 abuts against the stopper 362, the slot 411 extends out from the side of the second sliding member 352 away from the second swing arm 320, the snap ring 361 is snapped into the slot 411, and the snap ring 361 abuts against the second sliding member 352, so that the snap ring 361 and the limit baffle 412 are respectively limited at both ends of the first shaft body 410, so that the various structures sleeved on the first shaft body 410 are limited on the first shaft body 410.

[0119] like Fig.13As shown, the second swing arm 320 has a rotating part, and a limiting assembly groove 321 is provided in the middle part of the rotating part in the length direction. The second bracket 310 extends into the corresponding limiting assembly groove 321 of the second swing arm 320 at both ends in the width direction of the base 100, so that the second swing arm 320 and the second bracket 310 are relatively limited in the length direction of the base 100. The two first shaft bodies 410 are located on both sides of the second bracket 310 in the width direction of the base 100 to respectively penetrate the rotating part of the second swing arm 320 and the second bracket 310. The first shaft bodies 410 extend out of the second swing arm 320 at both ends in the length direction of the base 100, one end of which passes through the second sliding member 352 and then extends into the first shaft hole 231 of the opposite first bracket 210, and the other end passes through the first sliding member 351 and passes through the first elastic portion 331, passes through the stopper 362, and then extends into the first shaft hole 231 of the other first bracket 210. The baffle and the first sliding member 351 are respectively located on both sides of the first elastic portion 331. There are two first shaft bodies 410, and the two first shaft bodies 410 respectively pass through the two second swing arms 320. The outer side surface of the rotating portion of the second swing arm 320 is provided with a tooth structure, and the plurality of tooth structures form a first gear 341. There are two third shaft bodies 430, and the two third shaft bodies 430 are respectively sleeved with second gears 342, and the two second gears 342 are meshed, one of the second gears 342 is meshed with one of the first gears 341, and the other second gear 342 is meshed with the other first gear 341. One end of the two third shaft bodies 430 is rotatably connected to the second bracket 310, and the other end is rotatably connected to the second sliding member 352. One end of the two second shafts 420 is installed on the stopper 362, and the other end is installed on the first sliding member 351. The two second shafts 420 are both sleeved with a second elastic portion 332, and the two first shafts 410 are sleeved with a first elastic portion 331 in the area between the first sliding member 351 and the stopper 362.

[0120] like Fig. 20 , Fig.21 , Fig. 22 and Fig.23 As shown, in some implementations, the first bracket 210 is provided with a third shaft hole 233, and one end of the third shaft body 430 is located in the corresponding third shaft hole 233. In this configuration, the first bracket 210 and the second bracket 310 are not only connected by the first shaft body 410, but also connected by the third shaft body 430, thereby improving the connection strength between the first bracket 210 and the third bracket, and enhancing the connection stability between the first bracket 210 and the third bracket.

[0121] like Fig. 20 and Fig.24As shown, in some implementations, the first bracket 210 is provided with a third opening, the third shaft hole 233 is connected to the third opening, the third opening is located on one side of the third shaft hole 233 in the thickness direction of the base 100, and a part of the structure of the first shaft body 410 in the thickness direction extends out of the third shaft hole 233 through the third opening. In this arrangement, the cross-sectional shape of the inner wall of the third shaft hole 233 is an unclosed circle, and the size of the third shaft hole 233 in the thickness direction of the base 100 is smaller than the diameter of the first shaft body 410, so that the thickness of the area where the third shaft hole 233 is provided on the first bracket 210 can be relatively thinner. The size of the third shaft hole 233 in the thickness direction of the base 100 is the distance between the side wall of the third shaft hole 233 away from the second opening and the plane where the side wall of the first bracket 210 on the side where the second opening is provided is located. In some embodiments, the size of the third shaft hole 233 in the thickness direction of the base 100 is smaller than the diameter of the first shaft body 410 and larger than the radius of the first shaft body 410. The inner wall of the third shaft hole 233 not only limits the first shaft body 410 in the axial direction, but also limits the first shaft body 410 in the radial direction. The third shaft hole 233 is provided by using a relatively thinner base shell 110 of the first bracket 210 .

[0122] Several specific implementations are provided below. In a first specific implementation, the hinge mechanism 10 includes a swing arm module 200 and a damping module 300, a damping module 300 is disposed between the two swing arm modules 200, the swing arm module 200 includes a first bracket 210 and a first swing arm 220, the first swing arm 220 is rotatably mounted on the first bracket 210, and the first bracket 210 is provided with a first shaft hole 231. The damping module 300 includes a second swing arm 320, a second bracket 310, a first sliding member 351, a second sliding member 352, a first gear 341, a second gear 342, a first elastic portion 331, a second elastic portion 332, a stopper 362, a first shaft 410, a second shaft 420 and a third shaft 430. The first shaft 410, the second shaft 420 and the third shaft 430 are all installed on the second bracket 310. The second swing arm 320 has a rotating portion, and a limiting groove is provided in the middle of the rotating portion in the length direction. The two ends of the second bracket 310 in the width direction of the base 100 are respectively extended into the corresponding limiting grooves of the second swing arm 320, so that The second swing arm 320 and the second bracket 310 are relatively limited in the length direction of the base 100. The two first shaft bodies 410 are located on both sides of the second bracket 310 in the width direction of the base 100 to respectively penetrate the rotating part of the second swing arm 320 and the second bracket 310. The first shaft body 410 extends out of the second swing arm 320 at both ends in the length direction of the base 100, one end of which passes through the second sliding member 352 and then extends into the first shaft hole 231 of the opposite first bracket 210, and the other end passes through the first sliding member 351 and the first elastic part 331, passes through the stopper 362, and then extends into the first shaft hole 231 of the other first bracket 210. The baffle and the first sliding member 351 are respectively located on both sides of the first elastic part 331. There are two first shaft bodies 410, and the two first shaft bodies 410 respectively penetrate the two second swing arms 320. The outer side surface of the rotating part of the second swing arm 320 is provided with a tooth structure, and the plurality of tooth structures form a first gear 341. There are two third shaft bodies 430, and the two third shaft bodies 430 are respectively sleeved with a second gear 342, and the two second gears 342 are meshed, wherein one second gear 342 is meshed with one first gear 341, and the other second gear 342 is meshed with the other first gear 341. One end of the two third shaft bodies 430 is rotatably connected to the second bracket 310, and the other end is rotatably connected to the second sliding member 352. One end of the two second shaft bodies 420 is mounted on the stopper 362, and the other end is mounted on the first sliding member 351. The two second shaft bodies 420 are sleeved with a second elastic portion 332, and the first elastic portion 331 is sleeved on the area of ​​the two first shaft bodies 410 located between the first sliding member 351 and the stopper 362.

[0123] like Figure 25 to Figure 28As shown, the force between two swing arm modules 200 and one damping module 300 can be divided into a main force frame and two sub-force frames.

[0124] like Fig.26 As shown, in the main force-bearing frame, the two first brackets 210 are connected to the base 100 through the first locking member 440, the second bracket 310 is connected to the base 100 through the second locking member 450, and the two first shafts 410 connect the two first brackets 210 and the second bracket 310. In the main force-bearing frame, the first bracket 210 and the second bracket 310 are connected to the base 100 through the first locking member 440 and the second locking member 450, respectively, and the entire damping module 300 is fixed to the first brackets 210 on both sides through the two first shafts 410, so as to achieve the strength integration of the two swing arm modules 200 and the one damping module 300.

[0125] like Fig. 27 As shown, one of the sub-force-bearing frames is called the first sub-force-bearing frame, and the first sub-force-bearing frame is composed of a second bracket 310, two first shafts 410, two third shafts 430 and a second sliding member 352. The second bracket 310 and the second sliding member 352 are respectively connected by the first shaft 410 and the third shaft 430, thereby realizing the local strength integration of the damping module 300.

[0126] like Fig.28 As shown, the other sub-force-bearing frame is called the second sub-force-bearing frame, and the second sub-force-bearing frame is composed of a first sliding member 351, two first shafts 410, two second shafts 420 and a stop member 362. The stop member 362 and the first sliding member are respectively connected by the second shaft 420 and the third shaft 430, thereby realizing the local strength integration of the damping module 300.

[0127] like Fig.29 As shown, in the second specific embodiment, on the basis of the hinge mechanism 10 of the above-mentioned first specific embodiment, a second axial hole 232 is provided on the first bracket 210 adjacent to the end of the second shaft body 420, so that one end of the second shaft body 420 extends into the second axial hole 232, so that the second sub-force-bearing frame and the main force-bearing frame are also connected through the second shaft body 420, thereby improving the connection strength between the second sub-force-bearing frame and the main force-bearing frame, and achieving further strength enhancement.

[0128] like Fig.30As shown, in the third specific embodiment, on the basis of the hinge mechanism 10 of the above-mentioned first specific embodiment, a third axis hole 233 is provided on the first bracket 210 adjacent to the end of the third axis body 430, so that one end of the third axis body 430 extends into the third axis hole 233, so that the first sub-force-bearing frame and the main force-bearing frame are also connected through the third axis body 430, thereby improving the connection strength between the first sub-force-bearing frame and the main force-bearing frame, and achieving further strength enhancement.

[0129] like Fig.31 As shown, in the fourth specific embodiment, on the basis of the hinge mechanism 10 of the first specific embodiment, a second shaft hole 232 is provided on the first bracket 210 adjacent to the end of the second shaft body 420, so that one end of the second shaft body 420 extends into the second shaft hole 232, so that the second sub-force-bearing frame and the main force-bearing frame are also connected through the second shaft body 420. A third shaft hole 233 is provided on the first bracket 210 adjacent to the end of the third shaft body 430, so that one end of the third shaft body 430 extends into the third shaft hole 233, so that the first sub-force-bearing frame and the main force-bearing frame are also connected through the third shaft body 430. In this arrangement, the connection strength between the first sub-force-bearing frame and the main force-bearing frame, and the connection strength between the second sub-force-bearing frame and the main force-bearing frame are further enhanced.

[0130] The embodiment of the present application also provides a foldable electronic device 1, comprising a hinge mechanism 10 as provided in any of the above embodiments. Since the foldable electronic device 1 comprises the above hinge mechanism 10, it at least has all the beneficial effects of the hinge mechanism 10, which will not be described in detail here.

[0131] In some feasible embodiments, the foldable electronic device 1 also includes a shell and a display screen 40, the shell includes a first shell 20 and a second shell 30, and the swing arm module 200 in the hinge mechanism 10 includes two swing arms, one of which is connected to the first shell 20, and the other is connected to the second shell 30.

[0132] In some feasible embodiments, the hinge mechanism 10 further includes a first door panel and a second door panel, and a plurality of swing arm modules 200 may be provided in the hinge mechanism 10. The two first swing arms 220 in the swing arm module 200 are respectively located on the left and right sides of the base 100. The first swing arms 220 located on the left side of the base 100 are both rotatably connected to the first door panel and connected to the first housing 20 through the first door panel. The first swing arms 220 located on the right side of the base 100 are both rotatably connected to the second door panel, the first door panel is connected to the first housing 20, and the second door panel is connected to the second housing 30. The two second swing arms 320 in the damping module 300 are respectively located on the left and right sides of the base 100. The second swing arms 320 located on the left side of the base 100 are both slidably connected to the first door panel, and the second swing arms 320 located on the right side of the base 100 are both slidably connected to the second door panel.

[0133] In the foldable electronic device 1 provided in the embodiment of the present application, since the hinge mechanism 10 provided in the above embodiment is provided, in the hinge mechanism 10, the first bracket 210 of the swing arm module 200 and the second bracket 310 of the damping module 300 are limitedly connected by the first axis 410. In some embodiments, the first bracket 210 and the second bracket 310 are also limitedly connected by at least one of the second axis 420 and the third axis 430. The first shaft body 410, the second shaft body 420 and the third shaft body 430 can all make the swing arm module 200 and the damping module 300 limitedly connected to form an integral structure, improve the limited connection strength between the swing arm module 200 and the damping module 300, and during the folding process of the foldable electronic device 1, the driving force of the housing on the swing arm module 200 and the damping module 300 acts on the entire connected module structure, so that the integral structure formed by the connection of the swing arm module 200 and the damping module 300 can resist a greater thrust, reduce the degree of shaking, and reduce the shaking virtual position of the foldable electronic device 1. Since the installation stability of the swing arm module 200 and the damping module 300 on the base 100 is improved, it is convenient to control the flattening angle of the foldable electronic device 1, reduce the difficulty of controlling the flattening angle, and reduce the difficulty of controlling the folding trajectory of the hinge mechanism 10. Since the overall structural strength of the swing arm module 200 and the damping module 300 is improved, it can be applied to a lighter and thinner foldable electronic device 1.

[0134] The first shaft body 410, the second shaft body 420 and the third shaft body 430 can connect the multiple swing arm modules 200 and the multiple damping modules 300 into an integral structure, so that in addition to the working cooperation link formed by the door panel and the housing, the multiple swing arm modules 200 also have a working cooperation link formed by the first bracket 210 and the second bracket 310, thereby improving the synchronization between the multiple swing arm modules 200. In addition to the working cooperation link formed by the door panel and the housing, the multiple damping modules 300 also have a working cooperation link formed by the first bracket 210 and the second bracket 310, thereby improving the synchronization between the multiple damping modules 300.

[0135] The first shaft body 410, the second shaft body 420 and the third shaft body 430 can all limit the swing arm module 200 and the damping module 300 in the radial direction of the first shaft body 410, thereby reducing the assembly error of the swing arm module 200 and the damping module 300 on the base 100, reducing the possibility of the swing arm module 200 and the damping module 300 being staggered in the thickness direction, thereby reducing the possibility of wavy marks on the display screen 40. And because the assembly accuracy of the swing arm module 200 and the damping module 300 is improved, the synchronization of the two first swing arms 220 in the swing arm module 200 and the two second swing arms 320 in the damping module 300 is improved.

[0136] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such 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, and should all be included in the protection scope of the present application.

Claims

1. A hinge mechanism, characterized in that: include: A base, a swing arm module and a damping module, the swing arm module includes a first bracket and a first swing arm, the first swing arm is rotatably mounted on the first bracket, the damping module includes a second bracket, a first shaft, a second swing arm and a damping component, the second swing arm is rotatably mounted on the second bracket, the damping component is mounted on the second bracket, the damping component is used to provide damping force for the second swing arm, the first bracket and the second bracket are both connected to the base, the first bracket and the second bracket are arranged on the base along the length direction of the base, the first bracket is provided with a first axial hole, the second bracket is connected to the first shaft, and at least part of the first shaft is located in the first axial hole.

2. The hinge mechanism according to claim 1, characterized in that: There are multiple swing arm modules, and the damping modules are respectively arranged between adjacent swing arm modules. The first bracket is provided with the first axial holes at both ends of the length direction of the base; the first shaft body extends into the corresponding first axial holes at both ends along the length direction of the base.

3. The hinge mechanism according to claim 1, characterized in that: The damping component includes a first elastic portion, the first elastic portion is sleeved on the outside of the first shaft, and the second swing arm is configured to compress the first elastic portion during rotation.

4. The hinge mechanism according to claim 3, characterized in that: The damping module also includes a second shaft, and the damping component also includes a second elastic part. The second shaft is installed on the second bracket, and the second elastic part is sleeved on the outside of the second shaft. The second swing arm is configured to compress the second elastic part during rotation, and the second shaft is arranged parallel to the first shaft.

5. The hinge mechanism according to claim 4, characterized in that: The first bracket is provided with a second axial hole, and at least one end of the second shaft body extends out of the second bracket and is located in the corresponding second axial hole.

6. The hinge mechanism according to claim 5, characterized in that: The first bracket is provided with a first opening, the second axial hole is connected to the first opening, the first opening is located on one side of the second axial hole in the thickness direction of the base, and a partial structure of the first shaft body in the thickness direction of the base extends out of the second axial hole through the first opening.

7. The hinge mechanism according to claim 4, characterized in that: One of the second brackets is provided with two of the first shaft bodies, the two first shaft bodies are spaced apart in the width direction of the base, and the second shaft body is located between the two first shaft bodies.

8. The hinge mechanism according to claim 1, characterized in that: There are two first shaft bodies and two second swing arms, and the two second swing arms are sleeved on the two first shaft bodies in a one-to-one correspondence. The second swing arm is provided with a first gear, and the two first gears are meshed.

9. The hinge mechanism according to claim 8, characterized in that: The damping module also includes a second gear and a third shaft, the second gear is sleeved on the outside of the third shaft, the second gear is rotatably mounted on the second bracket through the third shaft, and the two first gears are meshed through the second gear.

10. The hinge mechanism according to claim 9, characterized in that: The first bracket is provided with a third axial hole, and one end of the third shaft body is located in the corresponding third axial hole.

11. The hinge mechanism according to claim 10, characterized in that: A second opening is provided on the first bracket, the third axial hole is connected to the second opening, the second opening is located on one side of the third axial hole in the thickness direction of the base, and a partial structure of the first axis body in the thickness direction of the base extends out of the third axial hole through the second opening.

12. The hinge mechanism according to any one of claims 1 to 11, characterized in that: The base comprises a base shell and a cover body, wherein the base shell and the cover body are connected and surround a receiving cavity, and the first bracket and the second bracket are both located in the receiving cavity.

13. The hinge mechanism according to claim 12, characterized in that: The first bracket is connected to at least one of the base shell and the cover body through a first locking member.

14. The hinge mechanism according to claim 12, characterized in that: The second bracket is connected to at least one of the base shell and the cover body through a second locking member.

15. The hinge mechanism according to claim 12, characterized in that: The first bracket is welded to the cover body, and / or the second bracket is welded to the cover body.

16. A foldable electronic device, characterized in that: Comprising a hinge mechanism as described in any one of claims 1-15.

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