Rotating mechanism and foldable electronic equipment

Abstract

The invention relates to the technical field of foldable electronic equipment, and discloses a rotating mechanism and foldable electronic equipment. The rotating mechanism comprises the first swing arm and the second swing arm, the first swing arm and the second swing arm can be connected with the bearing base through the same sliding frame, and the first swing arm and the second swing arm rotate around the same sliding frame. The sliding frame can slide relative to the bearing base, and the sliding frame can enable the first swing arm and the bearing base and the second swing arm and the bearing base to achieve sliding and rotating connection based on a solid axis, so that the connecting rigidity between the first swing arm / the second swing arm and the bearing base is high, and the impact resistance of the rotating mechanism can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foldable electronic devices, and in particular to a rotating mechanism and a foldable electronic device. BACKGROUND

[0002] With the continuous development of electronic devices, foldable electronic devices (for example, foldable screen mobile phones) are increasingly favored by people. The current foldable electronic devices generally include a rotating mechanism and two housings. The two housings are rotatably connected by the rotating mechanism. The relative rotation of the two housings can be realized by the rotating mechanism, so that the foldable electronic device can be switched between a folded state and an unfolded state.

[0003] At present, the rotating mechanism generally includes a bearing base and a plurality of swing arms (for example, a main swing arm and a secondary swing arm) arranged along the length direction of the bearing base. The main swing arm or the secondary swing arm is mostly connected to the bearing base through a virtual shaft by a rotating slider, which results in insufficient rigidity of the rotating mechanism, poor bearing capacity and poor impact resistance. SUMMARY

[0004] In order to solve the above problems, the present application provides a rotating mechanism and a foldable electronic device.

[0005] In a first aspect, the present application provides a rotating mechanism, comprising at least one set of rotating shaft assemblies and a bearing base, each set of rotating shaft assemblies comprising: a sliding frame, the sliding frame being arranged on the bearing base and being capable of sliding along the width direction of the bearing base relative to the bearing base; a first swing arm, one end of the first swing arm being rotatably connected to the sliding frame so as to be capable of rotating relative to the sliding frame about a first axis extending along the length direction of the bearing base and being capable of sliding with the sliding frame relative to the bearing base; and a second swing arm, the second swing arm comprising a first sub-arm and a second sub-arm; wherein one end of the first sub-arm is rotatably connected to the sliding frame so as to be capable of rotating relative to the sliding frame about a second axis parallel to or coinciding with the first axis and being capable of sliding with the sliding frame relative to the bearing base; one end of the second sub-arm is rotatably connected to the bearing base so as to be capable of rotating relative to the bearing base about a third axis parallel to the first axis, and the other end of the second sub-arm is rotatably connected to the middle section of the first sub-arm; wherein in the sliding process of the one end of the first swing arm relative to the bearing base, the one end of the first sub-arm can be driven by the sliding frame to slide within a first stroke, and the first stroke is located on one side of the third axis along the width direction.

[0006] Based on the above scheme, the first swing arm (for example, which can be a main swing arm) and the second swing arm (for example, which can be a secondary swing arm) in the rotating mechanism of the embodiment of the present application can be connected with the bearing base through the same slide rail, and the first swing arm and the second swing arm both rotate around the same slide rail, and the slide rail can slide relative to the bearing base. The slide rail can enable the first swing arm and the bearing base and the second swing arm and the bearing base to be connected through sliding and rotation based on a real axis, so that the connection rigidity between the first swing arm / second swing arm and the bearing base is strong, and the impact resistance of the rotating mechanism can be improved.

[0007] In some possible implementation ways of the above first aspect, the first swing arm comprises two first connecting arms arranged at intervals along the length direction, one end of each first connecting arm is rotationally connected with the slide rail respectively, so that the first swing arm is rotationally connected with the slide rail; and the second swing arm is located between the two first connecting arms.

[0008] In this way, the second swing arm is embedded in the first swing arm as a whole, and the first swing arm and the second swing arm can realize mutual nested design, so that the first swing arm and the second swing arm can share the installation space in the length direction of the rotating mechanism, which is conducive to arranging more first swing arms / second swing arms, and thus the stability and smoothness of rotation of the rotating mechanism can be improved.

[0009] In some possible implementation ways of the above first aspect, the first sub-arm comprises two second connecting arms arranged at intervals along the length direction, one end of each second connecting arm is rotationally connected with the slide rail respectively, so that the first sub-arm is rotationally connected with the slide rail; and the second sub-arm is located between the two second connecting arms.

[0010] It can be understood that the first sub-arm of the second swing arm is connected with the slide rail, and the first swing arm is connected with the slide rail, so that the movement of the first swing arm and the movement of the second swing arm can be coupled through the slide rail.

[0011] In some possible implementation ways of the above first aspect, the bearing base comprises a first sliding cavity, a second sliding cavity and a third sliding cavity arranged at intervals along the length direction; wherein a first sliding groove is arranged between the first sliding cavity and the second sliding cavity, and a second sliding groove is arranged between the second sliding cavity and the third sliding cavity; and the slide rail is sequentially arranged in the first sliding cavity, the first sliding groove, the second sliding cavity, the second sliding groove and the third sliding cavity.

[0012] It can be understood that the first sliding cavity, the second sliding cavity and the third sliding cavity have a certain size in the width direction, so that the slide rail can slide relative to the bearing base in the width direction.

[0013] And, since the slide frame is connected with the first connecting arm of the first swing arm and also connected with the second connecting arm of the first sub-arm of the second swing arm, the first swing arm and the second swing arm can slide along the width direction relative to the bearing base under the drive of the slide frame.

[0014] In some possible implementation ways of the first aspect, the two first connecting arms are respectively located in the first sliding cavity and the third sliding cavity, and the two second connecting arms and the second sub-arm are located in the second sliding cavity.

[0015] In some possible implementation ways of the first aspect, along the width direction, the size of the second sliding cavity is greater than the size of the first sliding cavity or the third sliding cavity.

[0016] In this way, the sliding stroke of the end of the first sub-arm of the second swing arm along the width direction is greater than the sliding stroke of the end of the first swing arm along the width direction, which is conducive to realizing that the first swing arm is substantially perpendicular to the bearing base in the folding state, so as to improve the bearing capacity of the bearing base to the first swing arm and improve the anti-falling performance of the rotating mechanism.

[0017] In some possible implementation ways of the first aspect, each group of rotating shaft assemblies further includes a first pin shaft, an axis of the first pin shaft is parallel to the length direction of the bearing base, and the first pin shaft is arranged through one end of the second sub-arm and the bearing base.

[0018] It can be understood that the second sub-arm of the second swing arm is rotationally connected with the bearing base through the first pin shaft.

[0019] In some possible implementation ways of the first aspect, each group of rotating shaft assemblies further includes a second pin shaft, a pin hole is arranged in the middle segment of the first sub-arm and the other end of the second sub-arm, and the second pin shaft is arranged in the pin hole.

[0020] It can be understood that the first sub-arm and the second sub-arm of the second swing arm are rotationally connected through the second pin shaft.

[0021] In some possible implementation ways of the first aspect, a first connecting block is further included, the other end of the first swing arm is fixedly connected or rotationally connected with the first connecting block, and the other end of the first sub-arm is slidingly connected with the first connecting block.

[0022] It can be understood that the first swing arm and the second swing arm in each group of rotating shaft assemblies are connected with the first shell or the second shell of the electronic device in which the rotating mechanism is located through the first connecting block, so as to drive the first shell or the second shell to rotate.

[0023] In some possible implementation ways of the first aspect, two groups of rotating shaft assemblies are included, the two groups of rotating shaft assemblies are arranged on two sides of the bearing base along the width direction, and the two groups of rotating shaft assemblies are arranged at intervals along the length direction or are symmetrically arranged relative to a plane perpendicular to the width direction.

[0024] It can be understood that, in the two groups of rotating shaft assemblies, the first swing arm and the second swing arm of one group of rotating shaft assemblies are connected to the first shell of the electronic device in which the rotating mechanism is located through the first connecting block in the rotating shaft assembly, and the first swing arm and the second swing arm of the other group of rotating shaft assemblies are connected to the second shell of the electronic device in which the rotating mechanism is located through the first connecting block in the rotating shaft assembly, so that the two groups of rotating shaft assemblies can drive the first shell and the second shell to rotate relative to each other, and switching between the folded state and the unfolded state of the electronic device is realized.

[0025] In a second aspect, the embodiments of the present application provide a foldable electronic device, comprising the rotating mechanism, the first shell and the second shell of the first aspect, and at least one group of rotating shaft assemblies including the first group of rotating shaft assemblies; wherein the other end of the first swing arm of the first group of rotating shaft assemblies is fixedly connected or rotatably connected to the first shell, and the other end of the first sub-arm of the first group of rotating shaft assemblies is used for slidingly connecting to the first shell.

[0026] In some possible implementation ways of the second aspect, the at least one group of rotating shaft assemblies further includes a second group of rotating shaft assemblies, and the first group of rotating shaft assemblies and the second group of rotating shaft assemblies are respectively arranged on two sides of the bearing base along the width direction of the bearing base; wherein the other end of the first swing arm of the second group of rotating shaft assemblies is fixedly connected or rotatably connected to the second shell, and the other end of the first sub-arm of the second group of rotating shaft assemblies is used for slidingly connecting to the second shell. BRIEF DESCRIPTION OF DRAWINGS

[0027] FIG. 1A According to some embodiments of the present application, a perspective view of a folding mobile phone 1 in an unfolded state is shown;

[0028] FIG. 1B According to some embodiments of the present application, a perspective view of a folding mobile phone 1 in a folded state is shown;

[0029] FIG. 2A According to some embodiments of the present application, a perspective view of a rotating mechanism 30 in an unfolded state is shown;

[0030] FIG. 2B According to some embodiments of the present application, an exploded view of a rotating mechanism 30 in an unfolded state is shown;

[0031] FIG. 2C According to some embodiments of the present application, a perspective view of a rotating mechanism 30 in a folded state is shown;

[0032] FIG. 3 According to some embodiments of the present application, a structural schematic view of a sliding carriage 311 is shown;

[0033] FIG. 4AAccording to some embodiments of the present application, a simple diagram of the rotating mechanism 30 in the folded state is shown.

[0034] FIG. 4B According to some embodiments of the present application, a simple diagram of the rotating mechanism 30 in the unfolded state is shown.

[0035] FIG. 5 According to some embodiments of the present application, a design diagram of the screen containing size of the rotating mechanism 30 in the folded state and the unfolded state is shown. DETAILED DESCRIPTION

[0036] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments.

[0037] The illustrative embodiments of the present application include but are not limited to a rotating mechanism, a foldable electronic device.

[0038] It can be understood that the foldable electronic device provided by the embodiments of the present application includes but is not limited to a foldable mobile phone, a tablet personal computer, an electronic book reader, a laptop computer, a personal digital assistant (PDA), a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, and the like electronic device including a rotating mechanism.

[0039] In order to facilitate the description, the foldable electronic device is taken as a foldable mobile phone for example in the following description. In addition, in order to facilitate the description, the state of the foldable mobile phone after being folded is defined as a folded state, and the state of the foldable mobile phone after being unfolded is defined as an unfolded state.

[0040] FIG. 1A And FIG. 1B An exemplary structure of the foldable mobile phone 1 in the embodiments of the present application is shown, wherein, FIG. 1A is a perspective view of the foldable mobile phone 1 in the unfolded state, FIG. 1B is a perspective view of the foldable mobile phone 1 in the folded state.

[0041] In order to facilitate the subsequent description, before introducing the specific structure of the foldable mobile phone 1, the X-axis direction, the Y-axis direction and the Z-axis direction corresponding to the foldable mobile phone 1 are defined in combination with FIG. 1A FIG. 1A ​As shown, the X-axis direction is the length direction when the folding mobile phone 1 is in the unfolded state, for example, when the folding mobile phone 1 is in the unfolded state, the direction from the bottom to the top is the positive direction of the X-axis; the Y-axis direction is the width direction when the folding mobile phone 1 is in the unfolded state, for example, when the folding mobile phone 1 is in the unfolded state, the direction from the left side to the right side is the positive direction of the Y-axis; the Z-axis direction is the thickness direction when the folding mobile phone 1 is in the unfolded state, for example, when the folding mobile phone 1 is in the unfolded state, the direction from the front to the back is the positive direction of the Z-axis. In some embodiments of the present application, the X-axis direction, the Y-axis direction and the Z-axis direction intersect with each other. In some implementations, the X-axis direction, the Y-axis direction and the Z-axis direction can be perpendicular to each other.

[0042] Reference FIG. 1A And FIG. 1B The folding mobile phone 1 includes a first housing 10, a second housing 20, a rotating mechanism 30a and a screen 40. Among them, along the Y-axis direction, the first housing 10 and the second housing 20 are respectively arranged on both sides of the rotating mechanism 30a and are respectively connected with the rotating mechanism 30a to realize the rotating connection of the first housing 10 and the second housing 20. The screen 40 is fixed on the first housing 10, the second housing 20 and the rotating mechanism 30a. Exemplarily, the first housing 10, the second housing 20 and the rotating mechanism 30a are covered by the screen 40. The first housing 10 and the second housing 20 can realize relative rotation through the rotating mechanism 30a and can drive the screen 40 to unfold or fold, so that the folding mobile phone 1 can be switched between the unfolded state as shown in FIG. 1A and the folding state as shown in FIG. 1B .

[0043] When the folding mobile phone 1 is in the unfolded state, the included angle between the first housing 10 and the second housing 20 can be in the range of 178°-182°, for example, and exemplarily, the included angle can be 180°, that is, the unfolding angle of the folding mobile phone 1 is 180°. The first housing 10 and the second housing 20 are arranged side by side along the Y-axis direction, the screen 40 is unfolded like a "one" character, and full-screen display can be performed, so that the folding mobile phone 1 has a larger display area to improve the viewing experience and operation experience of the user.

[0044] When the folding mobile phone 1 is in the folded state, the included angle between the first housing 10 and the second housing 20 can be in the range of 0°-2°, for example, and exemplarily, the included angle can be 0°, the first housing 10 and the second housing 20 are arranged in a stacked manner, and the screen 40 is folded like a "U" shape, so that the folding mobile phone 1 has a smaller planar size, which is convenient for the user to carry and store.

[0045] In some embodiments, referring to FIG. 1AThe rotating mechanism 30a includes a support base (not shown) and rotating shaft assemblies 310a and 320a disposed on both sides of the support base along the width direction (e.g., the Y-axis direction). The rotating shaft assemblies 310a and 320a are symmetrically disposed with respect to the plane F1, wherein the plane F1 is perpendicular to the Y-axis direction.

[0046] It should be noted that, in other embodiments, the rotating shaft assembly 310a and the rotating shaft assembly 320a may also be arranged alternately at intervals in the X-axis direction. Furthermore, the rotating mechanism 30a may include multiple rotating shaft assemblies 310a and multiple rotating shaft assemblies 320a, and the multiple rotating shaft assemblies 310a or multiple rotating shaft assemblies 320a may be arranged at intervals along the length direction of the support base (e.g., the X-axis direction).

[0047] In some embodiments, such as FIG. 1A As shown, the pivot assembly 310a includes swing arms 311a and 312a spaced apart along the Y-axis. Swing arm 311a can be a main swing arm, and swing arm 312a can be a secondary swing arm. Swing arms 311a and 312a are rotatably connected to the support base, and are also connected to the first housing 10. Thus, during the rotation of the folding phone 1, swing arms 311a and 312a can drive the first housing 10 to rotate relative to the support base.

[0048] In some embodiments, the structure of the pivot assembly 320a is the same as that of the pivot assembly 310a. Each swing arm in the pivot assembly 320a is rotatably connected to the support base, and each swing arm in the pivot assembly 320a is also connected to the second housing 20. Thus, during the rotation of the foldable phone 1, each swing arm in the pivot assembly 320a can drive the second housing 20 to rotate relative to the support base, thereby realizing the relative rotation between the first housing 10 and the second housing 20, allowing the foldable phone 1 to switch between a folded state and a flattened state.

[0049] However, the rotational connection between the swing arm and the support base in the pivot assembly is mostly a virtual axis connection achieved by rotating the slider. This results in poor reliability of the rotation mechanism 30a. For example, when the foldable phone 1 is subjected to external impact, the support base in the rotation mechanism 30a cannot provide reliable load-bearing force to the swing arm, resulting in poor drop resistance of the rotation mechanism 30a. Furthermore, the first / second housing connected to the swing arm is unstable, which can easily damage the screen supported by the first / second housing.

[0050] Based on this, this application provides a rotating mechanism in which the main swing arm and the auxiliary swing arm can be connected to the bearing base through the same slide. Both the main swing arm and the auxiliary swing arm rotate around the same slide, and the slide can slide relative to the bearing base. The slide can be a solid structure, so that the main swing arm and the bearing base, as well as the auxiliary swing arm and the bearing base, can achieve sliding and rotating connections based on a solid axis. This results in strong connection rigidity between each swing arm and the bearing base, which can improve the impact resistance of the rotating mechanism.

[0051] FIG. 2A to FIG. 2C This paper shows an exemplary structural schematic diagram of a rotating mechanism 30 according to an embodiment of the present application, wherein, FIG. 2A A three-dimensional view of the rotating mechanism 30 in its flattened state; FIG. 2B This is an exploded view of the rotating mechanism 30 in its flattened state. FIG. 2B The assembly relationship of the components in the rotating shaft mechanism 30 is schematically shown by dashed arrows; FIG. 2C This is a perspective view of the rotating mechanism 30 in its folded state. It should be understood that the figures in this application only schematically show a portion of the structure of the rotating mechanism 30 and do not constitute a limitation of this application.

[0052] like FIG. 2A As shown, the rotating mechanism 30 includes a support base 300 and at least one set of rotating shaft assemblies 310. It should be noted that only one set of rotating shaft assemblies 310 is shown in each figure as an example.

[0053] In some embodiments, at least one set of pivot assemblies 310 may include two sets of pivot assemblies 310, which are respectively disposed on both sides of the support base 310 along the Y-axis direction. The two sets of pivot assemblies 310 may be symmetrically arranged relative to a plane perpendicular to the Y-axis direction (e.g., the plane F1 mentioned above), or they may be staggered at intervals in the X-axis direction; this application does not limit this. Furthermore, the two sets of pivot assemblies 310 are respectively used to connect to the first housing 10 and the second housing 20 to drive the first housing 10 and the second housing 20 to rotate relative to each other, so that the foldable phone 1 can switch between a folded state and a flattened state.

[0054] Alternatively, in other embodiments, two or more sets of pivot assemblies 310 may be provided on either side of the support base 310 along the Y-axis direction, and these two or more sets of pivot assemblies 310 are spaced apart along the X-axis direction. It can be understood that the more pivot assemblies 310 there are, the better the rotation performance of the rotation mechanism 30, which helps to improve the user experience when the foldable phone 1 switches between the folded state and the flattened state.

[0055] To keep the description concise, the technical solution of this application will be introduced below using one set of rotating shaft components 310 as an example.

[0056] likeFIG. 2A and 2B As shown, the rotating shaft assembly 310 includes a carriage 311, a first swing arm 312, and a second swing arm 313. The first swing arm 312 can be a main swing arm, and the second swing arm 313 can be a secondary swing arm. The carriage 311 is mounted on the support base 300 and is capable of sliding relative to the support base 300 along the Y-axis direction.

[0057] Along the Y-axis, one end of the first swing arm 312 is rotatably connected to the carriage 311. When the carriage 311 slides relative to the bearing base 300 along the Y-axis, the first swing arm 312 can rotate relative to the carriage 311 about a first axis X1 extending along the X-axis, and the first swing arm 312 can slide with the carriage 311 relative to the bearing base 300 along the Y-axis.

[0058] The second swing arm 313 includes a first sub-arm 313-1, which is rotatably connected to the carriage 311 along the Y-axis. When the carriage 311 slides relative to the bearing base 300 along the Y-axis, the first sub-arm 313-1 can rotate relative to the carriage 311 about a second axis X2 extending along the X-axis, and the first sub-arm 313-1 can slide with the carriage 311 relative to the bearing base 300 along the Y-axis.

[0059] The second swing arm 313 also includes a second sub-arm 313-2. Along the Y-axis, one end of the second sub-arm 313-2 is rotatably connected to the support base 300, and the other end is rotatably connected to the middle section of the first sub-arm 313-1. When the first sub-arm 313-1 slides relative to the support base 300 and rotates about the second axis, the second sub-arm 313-2 can rotate relative to the support base 300 about a third axis X3 extending along the X-axis. Furthermore, during the rotation of the second sub-arm 313-2, along the Y-axis, the entire second sub-arm 313-2 is located on the same side of the carriage 311 (e.g., ...). FIG. 2B The carriage 311 shown is located on one side along the negative Y-axis.

[0060] It is understood that the rotating mechanism 30 of this application embodiment is based on the fact that the first swing arm 312 and the second swing arm 313 in the above-mentioned rotating shaft assembly 310 are respectively connected to the bearing base 300 through the slide 311. Furthermore, the first sub-arm 313-1 of the first swing arm 312 and the second swing arm 313 rotates relative to the slide 311. Since the slide 311 is a solid structure, a solid shaft connection is achieved between the first swing arm 312 and the bearing base 300, and between the second swing arm 313 and the bearing base 300. This can improve the connection stiffness and stability between the first swing arm 312 and the bearing base 300, and between the second swing arm 313 and the bearing base 300. The bearing base 300 can provide reliable bearing force to the first swing arm 312 and the second swing arm 313 through the slide 311, thereby improving the impact resistance of the rotating mechanism 30.

[0061] In some embodiments, such as FIG. 2A As shown, the rotating mechanism 30 also includes a first connecting block 320. The first swing arm 312 and the second swing arm 313 in the rotating shaft assembly 310 are respectively connected to the first housing 10 or the second housing 20 through the first connecting block 320.

[0062] For example, for two sets of rotating shaft assemblies 310 respectively disposed on both sides of the bearing base 300 along the Y-axis direction, in one set of rotating shaft assemblies 310, the first swing arm 312 and the second swing arm 313 are respectively connected to the first housing 10 through the first connecting block 320, and in the other set of rotating shaft assemblies 310, the first swing arm 312 and the second swing arm 313 are respectively connected to the second housing 20 through the first connecting block 320. In this way, the two sets of rotating shaft assemblies 310 disposed on both sides of the bearing base 300 along the Y-axis direction can realize the relative rotation of the first housing 10 and the second housing 20 through the corresponding first connecting blocks 320.

[0063] In some embodiments, along the Y-axis direction, the other end of the first swing arm 312, away from the support base 300, is fixedly or rotatably connected to the first connecting block 320. For example, FIG. 2AThe structure of the first swing arm 312 is shown in dashed lines within the first connecting block 320. The end of the first swing arm 312 furthest from the support base 300 is provided with fixing pins 3123 and 3124. Fixing pin 3123 extends in the negative X-axis direction, and fixing pin 3124 extends in the positive X-axis direction. The first connecting block 320 is provided with fixing grooves (not shown) that respectively match fixing pins 3123 and 3124. Fixing pins 3123 and 3124 are inserted into their respective fixing grooves. An interference fit between fixing pins 3123 and 3124 and their corresponding fixing grooves allows for a fixed connection between the first swing arm 312 and the first connecting block 320. Alternatively, a gap exists between fixing pins 3123 and 3124 and the groove walls of their respective fixing grooves, allowing for a rotatable connection between the first swing arm 312 and the first connecting block 320.

[0064] In some embodiments, along the Y-axis direction, the other end of the first sub-arm 313-1 of the second swing arm 313, away from the support base 300, is slidably connected to the first connecting block 320. For example, the first connecting block 320 may have a groove, and the first sub-arm 313-1 may include a slider disposed in the groove and capable of sliding relative to the groove, so that the first connecting block 320 and the first sub-arm 313-1 can slide relative to each other. Exemplarily, in the flattened state, the groove in the first connecting block 320 may be a straight groove extending along the Y-axis direction or a curved groove, and the shape of the slider matches the shape of the groove.

[0065] It should be noted that this application does not limit the connection method between the first swing arm 312 and the first connecting block 100 in the rotating shaft mechanism 30, or the connection method between the second swing arm 313 and the first connecting block 100, as long as the rotating mechanism 30 can drive the first housing 10 or the second housing 20 to rotate when rotating.

[0066] In some embodiments, such as FIG. 2A and FIG. 2B As shown, the first swing arm 312 and the second swing arm 313 are designed to be nested together. For example, the second swing arm 313 is entirely embedded in the first swing arm 312.

[0067] Specifically, such as FIG. 2A The enlarged view in the middle and FIG. 2BAs shown, the first swing arm 312 includes a first connecting arm 3121 and a first connecting arm 3122 spaced apart along the X-axis, and the second swing arm 313 is located between the first connecting arm 3121 and the first connecting arm 3122. The first sub-arm 313-1 of the second swing arm 313 includes a second connecting arm 313-11 and a second connecting arm 313-12 spaced apart along the X-axis, and the second sub-arm 313-2 of the second swing arm 313 is located between the second connecting arm 313-11 and the second connecting arm 313-12.

[0068] Thus, the first swing arm 312 and the second swing arm 313 can share the mounting space in the X-axis direction. Compared to FIG. 1A The arrangement of the swing arms 311a and 312a in the rotating mechanism 30a shown in the diagram, spaced apart along the X-axis, allows for more first swing arms 312 and second swing arms 313 on the support base 300 in the rotating mechanism 30 when the dimension of the rotating mechanism 30a along the X-axis is the same as that of the rotating mechanism 30. This results in a denser distribution of swing arms in the rotating mechanism 30, enabling more stable and smooth rotation of the first housing 10 and the second housing 20, and facilitating a smooth transition between the folded and unfolded states of the foldable phone 1. Furthermore, in some embodiments, the second swing arms 313 can provide damping force, thereby increasing the number of second swing arms 313 and improving the damping feel when using the foldable phone 1, thus enhancing the hovering effect of the foldable phone 1 at any angle.

[0069] In some embodiments, the first swing arm 312 is rotatably connected to the carriage 311 via a first connecting arm 3121 and a first connecting arm 3122. Specifically, see [reference needed]. FIG. 2A and FIG. 2B Along the Y-axis direction, the ends of the first connecting arm 3121 near the bearing base 300 are provided with shaft holes 3121a that penetrate along the X-axis direction, and the ends of the first connecting arm 3122 near the bearing base 300 are provided with shaft holes 3122a that penetrate along the X-axis direction. The slide 311 passes through the shaft holes 3121a and 3122a, and leaves a gap with the inner walls of the shaft holes 3121a and 3122a, so that the first swing arm 312 can rotate relative to the slide 311.

[0070] In some embodiments, the first sub-arm 313-1 is rotatably connected to the carriage 311 via a second connecting arm 313-11 and a second connecting arm 313-12. Specifically, see [reference needed]. FIG. 2A and FIG. 2BAlong the Y-axis direction, the ends of the second connecting arms 313-11 near the bearing base 300 are provided with shaft holes 313-11a that penetrate along the X-axis direction, and the ends of the second connecting arms 313-12 near the bearing base 300 are provided with shaft holes 313-12a that penetrate along the X-axis direction. The slide 311 passes through the shaft holes 313-11a and 313-12a, and leaves a gap with the inner walls of the shaft holes 313-11a and 313-12a, so that the first sub-arm 313-1 can rotate relative to the slide 311.

[0071] In some embodiments, such as FIG. 3 As shown, FIG. 3 A schematic diagram of a carriage 311 is shown. The carriage 311 includes a first extension segment 311a, a second extension segment 311b, and a third extension segment 311c extending along the X-axis direction, and a fourth extension segment 311d and a fifth extension segment 311e extending along the Y-axis direction. The first extension segment 311a, the fourth extension segment 311d, the second extension segment 311b, the fifth extension segment 311e, and the third extension segment 311b are connected sequentially.

[0072] Combination FIG. 2A to FIG. 2C The first extension segment 311a passes through the shaft hole 3121a of the first connecting arm 3121, the second extension segment 311b passes through the shaft holes 313-11a of the second connecting arm 313-11 and 313-12a of the second connecting arm 313-12, and the third extension segment 311c passes through the shaft hole 3122a of the first connecting arm 3122. Thus, the first swing arm 312 can rotate about the extension directions of the first extension segment 311a and the third extension segment 311c. The first sub-arm 313-1 can rotate about the extension direction of the second extension segment 311b.

[0073] In some embodiments, the extension direction of the first extension segment 311a coincides with the extension direction of the third extension segment 311c. The extension direction of the first extension segment 311a or the third extension segment 311c is the first axis X1 mentioned above, and the extension direction of the second extension segment 311b is the second axis X2 mentioned above. In this case, the first axis X1 and the second axis X2 do not coincide.

[0074] It is understood that in some other embodiments, the carriage 311 may only include a first extension segment 311a, a second extension segment 311b, and a third extension segment 311c extending along the X-axis direction. If the extension directions of the first extension segment 311a, the second extension segment 311b, and the third extension segment 311c coincide, then the first axis X1 coincides with the second axis X2.

[0075] In some embodiments, the second extension 311b is closer to the width center of the support base 300 than the first extension 311a and the third extension 311c. That is, the first axis X1 and the second axis X2 do not coincide, so that the angle between the first swing arm 312 and the support base 300 is approximately 90° when the folded state is in the folded state. In this way, when the foldable phone 1 is subjected to vertical force in the folded state, most of the impact force can be transmitted to the first swing arm 312 through the support base 300. Since the first swing arm 312 and the first connecting block 320 can be rigidly supported by the connection of the fixing pin and the fixing groove, the first swing arm 312 can withstand a relatively large impact force, which can improve the drop resistance of the rotating mechanism 30.

[0076] Continue reading FIG. 2B The support base 300 includes a first sliding cavity 300a, a second sliding cavity 300b, and a third sliding cavity 300c arranged sequentially along the X-axis. A first sliding groove 301 extending along the X-axis is provided between the first sliding cavity 300a and the second sliding cavity 300b, and a second sliding groove 302 extending along the X-axis is provided between the second sliding cavity 300b and the third sliding cavity 300c.

[0077] The first sliding cavity 300a, the second sliding cavity 300b, and the third sliding cavity 300c, as well as the first sliding groove 301 and the second sliding groove 302, all extend along the Y-axis direction. The slide 311 is sequentially inserted into the first sliding cavity 300a, the first sliding groove 301, the second sliding cavity 300b, the second sliding groove 302, and the third sliding cavity 300c. Specifically, the first extension section 311a is located in the first sliding cavity 300a, the second extension section 311b is located in the second sliding cavity 300b, and the third extension section 311c is located in the third sliding cavity 300c. Thus, the slide 311 can slide relative to the support base 300 in the Y-axis direction. For example, the folding phone 1... FIG. 2A The flattened state shown is switched to FIG. 2C As shown in the folded state, carriage 311 can be drawn from... FIG. 2A The position shown is slid along the negative Y-axis to... FIG. 2C The location shown.

[0078] In some embodiments, such as FIG. 2BAs shown, a third sliding groove (not shown) can also be provided on the cavity wall of the first sliding groove 300a, and a fourth sliding groove 303 can also be provided on the cavity wall of the third sliding cavity 300c. The third sliding groove is a semi-closed groove with its opening direction in the positive X-axis direction; the fourth sliding groove 303 is a semi-closed groove with its opening direction in the negative X-axis direction. The two ends of the carriage 311 along the X-axis direction (for example, the end of the first extension 311a along the negative X-axis direction and the end of the third extension 311c along the positive X-axis direction) are respectively provided in the third sliding groove and the fourth sliding groove 303. In this way, the third sliding groove and the fourth sliding groove 303 can limit the carriage 311 in the X-axis direction, thereby improving the stability of the carriage 311.

[0079] Furthermore, the first sliding cavity 300a can accommodate at least a portion of the first connecting arm 3121 of the first swing arm 312, and the third sliding cavity 300c can accommodate at least a portion of the first connecting arm 3122 of the first swing arm 312. Since the carriage 311 is connected to the first connecting arm 3121 and the first connecting arm 3122 of the first swing arm 312 respectively, the first swing arm 312 can slide relative to the bearing base 300 along the Y-axis direction under the drive of the carriage 311.

[0080] The aforementioned second receiving cavity 300b can accommodate at least a portion of the second connecting arm 313-11 and at least a portion of the second connecting arm 313-12 of the first sub-arm 313-1. Similarly, since the carriage 311 is connected to the second connecting arm 313-11 and the second connecting arm 313-12 of the first sub-arm 313-1 respectively, the first sub-arm 313-1 can slide relative to the bearing base 300 along the Y-axis direction under the drive of the carriage 311.

[0081] The aforementioned second receiving cavity 300b can also accommodate the second sub-arm 313-2. In some embodiments, the dimensions of the second sliding cavity 300b along the X-axis are set according to the dimensions of the second sub-arm 313-2, the second connecting arm 313-11, and the second connecting arm 313-12 along the X-axis to ensure that the second sliding cavity 300b has sufficient space to accommodate all of the second sub-arm 313-2 in the flattened state.

[0082] In some embodiments, along the Y-axis direction, the size y1 of the first sliding cavity 300a is the same as the size y3 of the third sliding cavity 300c, so that the sliding stroke of the ends of the first connecting arm 3121 and the first connecting arm 3122 is the same in the Y-axis direction. For example, the folding phone 1... FIG. 2A The flattened state shown is switched to FIG. 2CIn the folded state shown, the end of the first connecting arm 3121 of the first swing arm 312 slides from one side of the first sliding cavity 300a to the other side of the first sliding cavity 300a along the negative Y-axis direction, while the end of the first connecting arm 3122 slides from one side of the third sliding cavity 300c to the other side of the third sliding cavity 300c along the negative Y-axis direction.

[0083] The dimension y1 of the second sliding cavity 300b is greater than the dimension y2 of the first sliding cavity 300a or the dimension y3 of the third sliding cavity 300c, so that the sliding stroke of the end of the first sub-arm 313-1 in the Y-axis direction is greater than the sliding stroke of the end of the first swing arm 312 in the Y-axis direction. For example, the folding phone 1... FIG. 2A The flattened state shown is switched to FIG. 2C In the folded state shown, the ends of the second connecting arm 313-11 and the second connecting arm 313-12 of the first sub-arm 313-1 simultaneously slide from one side of the second sliding cavity 300b to the other side of the second sliding cavity 300b along the negative Y-axis direction.

[0084] In some embodiments, the pivot assembly 310 further includes a first pin (not shown), the axis of which is parallel to the X-axis direction, and the first pin passes through one end of the second sub-arm 313-2 and the support base 300. The second sub-arm 313-2 is rotatably connected to the support base 300 via the first pin.

[0085] Specifically, such as FIG. 2B As shown, along the Y-axis direction, the end of the second sub-arm 313-2 near the bearing base 300 is provided with a shaft hole 313-2a extending along the X-axis direction. And as shown... FIG. 2B As shown in the enlarged view, the second sliding cavity 300b of the bearing base 300 is provided with a shaft hole 304 extending along the X-axis. The first pin can pass through the shaft hole 313-2a and the shaft hole 304, and a gap is left between the first pin and the inner wall of the shaft hole 313-2a and the shaft hole 304, so that the second sub-arm 313-2 can rotate relative to the bearing base 300.

[0086] Furthermore, the pivot assembly 310 may also include a second pin (not shown), through which the middle section of the first sub-arm 313-1 and the other end of the second sub-arm 313-2 are rotatably connected. Specifically, as FIG. 2BAs shown, along the Y-axis direction, the middle section of the second connecting arm 313-11 is provided with a pin hole 313-11b that passes through along the X-axis direction, and the middle section of the second connecting arm 313-12 is provided with a pin hole 313-12b that passes through along the X-axis direction. The second pin can pass through the pin holes 313-11b and 313-12b, and a gap is left between the pin holes 313-11b and 313-12b, so that the first sub-arm 313-1 and the second sub-arm 313-2 can rotate relative to each other.

[0087] The following is combined with FIG. 4A and FIG. 4B The motion principle of each component in the rotating mechanism 30 is introduced. FIG. 4A This is a simplified diagram of the rotating mechanism 30 in the folded state. FIG. 4B This is a simplified diagram of the rotating mechanism 30 in its flattened state. FIG. 4A and FIG. 4B Different swing arms are indicated by lines of varying thickness.

[0088] like FIG. 4A As shown, the first swing arm 312 includes end A1 and end A2, the first sub-arm 313-1 of the second swing arm 313 includes end B11 and end B12, and the second sub-arm 313-2 of the second swing arm 313 includes end B21 and end B22. End B22 of the second sub-arm 313-2 overlaps with end A2 of the first swing arm 312 in the YZ plane. End B21 of the second sub-arm 313-2 is located in the middle of the first sub-arm 313-1, that is, end B21 can be located between end B11 and end B12. End A2 of the first swing arm 312 and end B12 of the first sub-arm 313-1 of the second swing arm 313 are connected to the support base 300 via a carriage 311 (not shown), and end B12 is closer to the width center 300A of the support base 300 than end A2.

[0089] from FIG. 4A The folded state shown FIG. 4B During the flattening process shown, the slide 311 can drive the end A2 of the first swing arm 312 and the end B12 of the first sub-arm 313-1 to slide from one side of the support base 300 along the positive Y-axis to the other side of the support base 300. In other words, the first swing arm 312 and the first sub-arm 313-1 achieve motion coupling through the slide 311. For example, when the end A2 of the first swing arm 312 slides relative to the support base 300 along the Y-axis, the slide 311 can drive the end B12 of the first sub-arm 313-1 to slide in the first stroke Y-B12. The position of the third axis X3 is shown in the figure, and it can be seen that the first stroke Y-B12 is located on the side of the third axis X3 facing the positive Y-axis.

[0090] Furthermore, when the carriage 311 slides along the positive Y-axis, it can drive the first swing arm 312 and the first sub-arm 313-1 to rotate relative to the carriage 311, so that the end A1 of the first swing arm 312 and the end B11 of the first sub-arm 313-1 rotate from one side of the thickness direction of the bearing base 300 (e.g., the side along the negative Z-axis) to one side of the width direction of the bearing base 300 (e.g., the side along the negative Y-axis) in the direction N1 shown in the figure.

[0091] Furthermore, when the carriage 311 slides along the positive Y-axis, since the end B11 of the first sub-arm 313-1 rotates along the N1 direction and the end B12 slides along the positive Y-axis, and the end B22 of the second sub-arm 313-2 is fixed in the Y-axis direction, the end B22 of the second sub-arm 313-2 can be made to follow... FIG. 4A The rotation is shown in the N2 direction. It can be understood that during the rotation, the ends B21 and B22 of the second sub-arm 313-2 are both located on the side of the end B12 of the first sub-arm 313-1 along the negative Y-axis.

[0092] Furthermore, as mentioned above, the sliding stroke of the end of the first sub-arm 313-1 in the Y-axis direction is greater than the sliding stroke of the end of the first swing arm 312 in the Y-axis direction. Therefore, in the flattened state, the end A2 of the first swing arm 312 is located on the side of the end B12 of the first sub-arm 313-1 along the negative Y-axis direction.

[0093] FIG. 5 The diagram shows the design of the screen accommodating size of the rotating mechanism 30 in both the folded and flattened states. FIG. 5 As shown, in the flattened state, the rotating mechanism 30 has a first screen accommodating dimension L1 (shown as a dashed line in the figure). Here, L1 represents the straight-line distance along the Y-axis from one end of the first connecting block 320 along the positive Y-axis to the plane F2 where the width center 300A of the support base 300 is located. In the folded state, the rotating mechanism 30 has a second screen accommodating dimension L2 (shown as a curved solid line in the figure). Here, L2 represents the curved distance from one end of the first connecting block 320 along the positive Z-axis to the plane F2 where the width center 300A of the support base 300 is located. The first screen accommodating dimension L1 is smaller than the second screen accommodating dimension L2. For example, through simulation calculation, the first screen accommodating dimension L1 can be 4.8 mm, and the second screen accommodating dimension L2 can be 5.1 mm, thus satisfying the screen's spatial design requirements.

[0094] It should be noted that in the examples and description of this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0095] Although this application has been illustrated and described with reference to certain preferred embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made thereto without departing from the scope of this application.

Claims

1. A rotating mechanism, characterized by comprising: The bearing base comprises at least one set of rotating shaft assemblies, each set of rotating shaft assemblies comprising: a slide frame arranged on the bearing base and capable of sliding along the width direction of the bearing base relative to the bearing base; a first swing arm having one end rotatably connected to the slide frame so as to be capable of rotating relative to the slide frame about a first axis extending along the length direction of the bearing base and capable of sliding with the slide frame relative to the bearing base; a second swing arm comprising a first sub-arm and a second sub-arm; wherein one end of the first sub-arm is rotatably connected to the slide frame so as to be capable of rotating relative to the slide frame about a second axis parallel to or coinciding with the first axis and capable of sliding with the slide frame relative to the bearing base; one end of the second sub-arm is rotatably connected to the bearing base so as to be capable of rotating relative to the bearing base about a third axis parallel to the first axis, and the other end of the second sub-arm is rotatably connected to the middle section of the first sub-arm; wherein, during the sliding of the one end of the first swing arm relative to the bearing base, the one end of the first sub-arm can be driven by the slide frame to slide within a first stroke, wherein, along the width direction, the first stroke is located on one side of the third axis.

2. The swivel mechanism of claim 1, wherein The first swing arm comprises two first connecting arms arranged at intervals along the length direction, one end of each of the first connecting arms being rotatably connected to the slide frame so that the first swing arm is rotatably connected to the slide frame; and the second swing arm is located between the two first connecting arms.

3. The swivel mechanism of claim 2, wherein, The first sub-arm comprises two second connecting arms arranged at intervals along the length direction, one end of each of the second connecting arms being rotatably connected to the slide frame so that the first sub-arm is rotatably connected to the slide frame; and the second sub-arm is located between the two second connecting arms.

4. The swivel mechanism of claim 3, wherein The bearing base comprises a first sliding cavity, a second sliding cavity and a third sliding cavity arranged in sequence along the length direction; wherein a first sliding groove is arranged between the first sliding cavity and the second sliding cavity, and a second sliding groove is arranged between the second sliding cavity and the third sliding cavity; and the slide frame is sequentially arranged in the first sliding cavity, the first sliding groove, the second sliding cavity, the second sliding groove and the third sliding cavity.

5. The swivel mechanism of claim 4, wherein, The two first connecting arms are respectively located in the first sliding cavity and the third sliding cavity, and the two second connecting arms and the second sub-arm are located in the second sliding cavity.

6. A swivel mechanism according to claim 4 or 5, characterised in that Along the width direction, the size of the second sliding cavity is greater than the size of the first sliding cavity or the third sliding cavity.

7. The swivel mechanism of claim 1, wherein Each set of rotating shaft assemblies further comprises a first pin shaft, the axis of the first pin shaft being parallel to the length direction of the bearing base, and the first pin shaft being arranged in the one end of the second sub-arm and the bearing base.

8. The swivel mechanism of claim 1, wherein, Each set of rotating shaft assemblies further comprises a second pin shaft, the middle section of the first sub-arm and the other end of the second sub-arm are provided with pin holes, and the second pin shaft is inserted into the pin holes.

9. The swivel mechanism according to any one of claims 1-5, 7, 8, characterized in that, Further comprising a first connecting block; the other end of the first swing arm is fixedly connected or rotatably connected to the first connecting block; The other end of the first sub-arm is in sliding connection with the first connecting block.

10. The swivel mechanism of claim 1, wherein, The two groups of the rotating shaft assemblies are respectively arranged on two sides of the bearing base along the width direction of the bearing base. The two groups of the rotating shaft assemblies are arranged in the length direction with a spacing, or the two groups of the rotating shaft assemblies are symmetrically arranged relative to a plane perpendicular to the width direction.

11. A foldable electronic device, characterized by The rotating mechanism, the first shell and the second shell of any one of claims 1-10, the at least one group of rotating shaft assemblies comprises a first group of rotating shaft assemblies; wherein The other end of the first swing arm of the first group of rotating shaft assemblies is in fixed connection or rotary connection with the first shell, and the other end of the first sub-arm of the first group of rotating shaft assemblies is used for sliding connection with the first shell.

12. The foldable electronic device of claim 11, wherein, The at least one group of rotating shaft assemblies further comprises a second group of rotating shaft assemblies, and the first group of rotating shaft assemblies and the second group of rotating shaft assemblies are respectively arranged on two sides of the bearing base along the width direction of the bearing base; wherein The other end of the first swing arm of the second group of rotating shaft assemblies is in fixed connection or rotary connection with the second shell, and the other end of the first sub-arm of the second group of rotating shaft assemblies is used for sliding connection with the second shell.

Images