CN217682776U - Rotating mechanism and foldable terminal - Google Patents

Rotating mechanism and foldable terminal Download PDF

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Publication number
CN217682776U
CN217682776U CN202122118427.XU CN202122118427U CN217682776U CN 217682776 U CN217682776 U CN 217682776U CN 202122118427 U CN202122118427 U CN 202122118427U CN 217682776 U CN217682776 U CN 217682776U
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China
Prior art keywords
swing arm
rotating shaft
rotating
hollow
swing
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CN202122118427.XU
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Chinese (zh)
Inventor
魏亚蒙
封蕾
张垚磊
张伟
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Honor Device Co Ltd
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Honor Device Co Ltd
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Priority to CN202122118427.XU priority Critical patent/CN217682776U/en
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Abstract

The application provides a slewing mechanism and collapsible terminal, slewing mechanism's quality is less, is favorable to realizing the frivolous design of collapsible terminal. The shown slewing mechanism of this application includes first axis of rotation, the second axis of rotation, first swing arm and second swing arm, in the axial of the first axis of rotation of perpendicular to, first axis of rotation and second axis of rotation are just the interval setting side by side, first axis of rotation is located to first swing arm cover, and first axis of rotation rotates relatively, the second axis of rotation is located to second swing arm cover, and second axis of rotation relatively rotates, the first axis of rotation pivoted direction of first swing arm relatively, opposite with the relative second axis of rotation pivoted direction of second swing arm. The first swing arm is provided with a plurality of first hollow parts, each first hollow part extends along the first direction of the first swing arm, the first hollow parts are arranged at intervals along the second direction of the first swing arm, and the first direction of the first swing arm is different from the second direction of the second swing arm.

Description

Rotating mechanism and foldable terminal
Technical Field
The application relates to the field of foldable terminals, in particular to a rotating mechanism and a foldable terminal.
Background
With the progress of science and technology, a large-screen intelligent terminal age comes, and a foldable terminal is favored by users due to the advantages of large screen, convenience in carrying and the like. At present, foldable terminal often adopts slewing mechanism to realize folding and expansion, however, current damping component's quality is great, is unfavorable for realizing the frivolous design of foldable terminal.
SUMMERY OF THE UTILITY MODEL
The application provides a slewing mechanism and collapsible terminal, slewing mechanism's quality is little, is favorable to realizing the frivolous design of collapsible terminal.
In a first aspect, the present application provides a rotation mechanism that includes a first rotation axis, a second rotation axis, a first swing arm, and a second swing arm. Along the axial of perpendicular to first axis of rotation, first axis of rotation and second axis of rotation are side by side and interval setting. The first swing arm is sleeved on the first rotating shaft and can rotate relative to the first rotating shaft. The second swing arm is sleeved on the second rotating shaft and can rotate relative to the second rotating shaft. The direction of the first swing arm rotating relative to the first rotating shaft is opposite to the direction of the second swing arm rotating relative to the second rotating shaft.
First swing arm is equipped with a plurality of first fretwork portions, and each first fretwork portion all extends along the first direction of first swing arm, and a plurality of first fretwork portions are arranged along the second direction interval of first swing arm, and the first direction of first swing arm is different with the second direction of second swing arm.
The first swing arm comprises a first rotating part and a first swinging part, and the first swinging part is fixedly connected to the first rotating shaft. The first rotating part is sleeved on the first rotating shaft, and the first swinging part extends out relative to the first rotating shaft. The first direction of the first swing arm is the direction in which the first rotating portion points to the first swinging portion, and the second direction of the first swing arm is the axial direction of the first rotating portion.
In the rotating mechanism disclosed by the application, the mass of the first swing arm can be effectively reduced through the design of the first hollow-out part, and the weight reduction of the rotating mechanism is realized. Moreover, the first hollow-out part extends along the first direction of the first swing arm, so that the bending resistance of the first swing arm along the first direction of the first swing arm is kept strong enough, and the use strength of the rotating mechanism is ensured.
In one embodiment, the second swing arm is provided with a plurality of second hollow parts, each second hollow part extends along a first direction of the second swing arm, the plurality of second hollow parts are arranged at intervals along a second direction of the second swing arm, and the first direction of the second swing arm is different from the second direction of the second swing arm.
The second swing arm comprises a second rotating part and a second swinging part, and the second swinging part is fixedly connected to the second rotating shaft. The second rotating part is sleeved on the second rotating shaft, and the second swinging part extends out relatively to the second rotating shaft. The first direction of the second swing arm is the direction in which the second rotating part points to the second swing part, and the second direction of the second swing arm is the axial direction of the second rotating part.
In the rotating mechanism disclosed by the application, the mass of the second swing arm can be effectively reduced through the design of the second hollow-out part, and the weight reduction of the rotating mechanism is further realized. And the design of the second hollow-out part can also keep the weight balance of the first swing arm and the second swing arm, so that the gravity center of the rotating mechanism keeps balance, and the use reliability of the rotating mechanism is ensured. In addition, the second hollow-out part extends along the first direction of the second swing arm, so that the bending resistance of the second swing arm in the first direction along the second swing arm is kept strong enough, and the use strength of the rotating mechanism is ensured.
In one embodiment, each first hollow-out portion comprises a plurality of sub hollow-out portions, the sub hollow-out portions are arranged at intervals along a first direction, and the density of the sub hollow-out portions along the first direction is greater than that along a second direction.
Wherein, the sub hollow parts are grooves or holes.
In the rotating mechanism shown in the embodiment, the density of the sub hollow-out portions in the first direction is greater than that in the second direction, so that the bending resistance of the first swing arm in the first direction is greater than that in the second direction, the bending resistance of the first swing arm in the second direction is sacrificed to reduce the weight, the bending resistance of the first swing arm in the first direction is strong enough, and the use strength of the rotating mechanism is ensured.
In one embodiment, the hollow portion is a strip-shaped groove or a strip-shaped hole.
In one embodiment, the rotating mechanism further includes a first auxiliary swing arm and a second auxiliary swing arm, the first auxiliary swing arm is adapted to the first swing arm, and when the first swing arm rotates relative to the first rotating shaft, the first auxiliary swing arm rotates relative to the first rotating shaft, and slides relative to the first swing arm along a direction away from the first rotating shaft or close to the first rotating shaft.
The second auxiliary swing arm is matched with the second swing arm, and when the second swing arm rotates relative to the second rotating shaft, the second auxiliary swing arm rotates relative to the second rotating shaft and can slide relative to the second swing arm along the direction far away from the second rotating shaft or close to the second rotating shaft.
First swing arm rotates first axis of rotation relatively, and the relative second axis of rotation of second swing arm rotates, so that when first swing arm and second swing arm are folding relatively, first swing arm is first swing arm relatively and is slided towards the direction of keeping away from first axis of rotation, the relative second swing arm of second swing arm slides towards the direction of keeping away from the second axis of rotation, reserve sufficient space for the foldable part of display screen in the collapsible terminal, make foldable part great angle buckling can not appear, avoid the display screen to receive destruction, help prolonging the life of display screen.
First swing arm rotates for first axis of rotation, and the relative second axis of rotation of second swing arm to when making first swing arm and second swing arm expand relatively, first supplementary swing arm slides towards the direction that is close to first axis of rotation for first swing arm, and the relative second swing arm of second supplementary swing arm slides towards the direction that is close to the second axis of rotation, in order to withdraw the space that reserves for collapsible portion before, slowly draws the collapsible portion flat, in order to realize the good support to the display screen.
In one embodiment, the first swing arm includes a first mating surface, and the openings of the first hollow portions are all located on the first mating surface.
The first auxiliary swing arm comprises a second matching surface which is contacted with the first matching surface. First supplementary swing arm is equipped with a plurality of sliders, and each slider all connects in the second fitting surface, and extends along first direction, and a plurality of sliders are arranged along the second direction interval, and each slider is located a fretwork portion.
When the first auxiliary swing arm slides relative to the first swing arm, each sliding block slides relative to the first swing arm in one first hollow-out part.
In this embodiment, the design of first fretwork portion and slider can increase the cooperation area between first swing arm and the first supplementary swing arm to guarantee slewing mechanism's stability in rotation. Moreover, the sliding block of the first auxiliary swing arm and the first swing arm can reuse the space in the thickness direction, so that the thickness of the rotating mechanism can be reduced, and the light and thin design of the rotating mechanism can be realized. In addition, the sliding grooves and the sliding blocks extend along the first direction, the sliding track of the first auxiliary swing arm relative to the first swing arm can be limited, and the use reliability of the rotating mechanism is guaranteed.
In one embodiment, the width of the first hollow portion is uniform along the depression direction of the first hollow portion. The width of the slider is uniform along the protruding direction of the slider. Illustratively, the cross sections of the first hollow part and the sliding block are rectangular.
In one embodiment, the width of the first hollow portion gradually decreases along the depression direction of the first hollow portion. Along the protruding direction of the slider, the width of the slider gradually decreases. Illustratively, the cross section of the first hollow part and the slider is semicircular or triangular.
In one embodiment, the width of the first hollow portion gradually increases along the depression direction of the first hollow portion. Along the protruding direction of the slider, the width of the slider gradually increases. Illustratively, the cross sections of the first hollow part and the sliding block are in the shape of an inverted frustum.
In the rotating mechanism shown in the embodiment, the first hollow portion and the sliding block are structurally designed, so that when the first swing arm and the first auxiliary swing arm rotate relative to the first rotating shaft, the first swing arm and the first auxiliary swing arm cannot be separated from each other in the first thickness direction, the assembly stability between the first swing arm and the first auxiliary swing arm is improved, and the use reliability of the rotating mechanism is guaranteed.
In one embodiment, there are two first swing arms, and the two first swing arms are both sleeved on the first rotating shaft and are arranged at intervals along the axial direction of the first rotating shaft.
The second swing arm has two, and the second axis of rotation is all located to two second swing arms covers, and arranges along the axial interval of second axis of rotation.
In one embodiment, the rotating mechanism further comprises a first damping member and a second damping member, the first damping member is sleeved on the first rotating shaft, and the second damping member is sleeved on the second rotating shaft.
First damping piece and second damping piece can provide slewing mechanism at folding and the damping force who expandes the in-process, guarantee that the damping of user when folding and expansion collapsible terminal is felt, promote user's use and experience.
In one embodiment, the rotating mechanism further comprises a transmission member connected between the first rotating shaft and the second rotating shaft.
When the first swing arm rotates relative to the first rotating shaft, the transmission piece drives the second swing arm to rotate relative to the second rotating shaft. Or when the second swing arm rotates relative to the second rotating shaft, the transmission piece drives the first swing arm to rotate relative to the first rotating shaft so as to realize synchronous rotation between the first swing arm and the first rotating shaft and between the second swing arm and the second rotating shaft.
In a second aspect, the present application provides a foldable terminal comprising a first housing, a second housing, and any one of the above-mentioned rotating mechanisms, the rotating mechanism being connected between the first housing and the second housing.
In the foldable terminal disclosed by the application, any one of the rotating mechanisms is adopted, so that the weight of the rotating mechanism is small, and the light and thin design of the foldable terminal is facilitated.
In one embodiment, the foldable terminal further includes a display screen, the display screen includes a first display portion, a second display portion, and a foldable portion, the foldable portion is connected between the first display portion and the second display portion, the first display portion is mounted on the first housing, the second display portion is mounted on the second housing, and the foldable portion is disposed opposite to the rotating mechanism.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present application, the drawings required to be used in the embodiments or the background art of the present application will be described below.
Fig. 1 is a schematic structural diagram of a foldable terminal provided in an embodiment of the present application in a state;
fig. 2 is a schematic view of the foldable terminal shown in fig. 1 in a second state;
fig. 3 is an exploded view of the foldable terminal shown in fig. 2;
fig. 4 is a schematic structural view of a first housing and a second housing of the foldable device in the foldable terminal shown in fig. 3;
fig. 5 is a schematic structural view of a rotating mechanism of the foldable device in the foldable terminal shown in fig. 3;
fig. 6 is a schematic structural view of a first rotating shaft and a second rotating shaft in the rotating mechanism shown in fig. 5;
FIG. 7 is a schematic diagram of a first swing arm assembly of the first rotating assembly of FIG. 5 in one embodiment;
FIG. 8 is an exploded view of the first swing arm assembly shown in FIG. 7;
FIG. 9 is a schematic structural diagram of a first swing arm assembly of the first rotating assembly shown in FIG. 5 in a second embodiment;
FIG. 10 is an exploded view of the first swing arm assembly of FIG. 9;
FIG. 11 is a schematic structural view of a first swing arm assembly of the first rotating assembly shown in FIG. 5 according to a third embodiment;
FIG. 12 is an exploded view of the first set of swing arms shown in FIG. 11;
fig. 13 is a schematic structural view of the first swing arm set shown in fig. 12 at another angle;
FIG. 14 is a schematic structural view of a first swing arm assembly of the first rotating assembly shown in FIG. 5 in a fourth embodiment;
FIG. 15 is an exploded view of the first swing arm assembly of FIG. 14;
FIG. 16 is a schematic view of the first swing arm set of FIG. 15 at another angle;
FIG. 17 is a schematic structural diagram of a first swing arm assembly of the first rotating assembly shown in FIG. 5 in a fifth embodiment;
FIG. 18 is an exploded view of the first swing arm assembly of FIG. 17;
fig. 19 is a schematic structural view of the first swing arm set shown in fig. 18 at another angle;
FIG. 20 is a schematic structural diagram of a first swing arm assembly of the first rotating assembly shown in FIG. 5 in a sixth embodiment;
FIG. 21 is an exploded view of the first swing arm assembly of FIG. 20;
fig. 22 is a schematic structural view of the first swing arm set shown in fig. 21 at another angle.
Detailed Description
The embodiments of the present application are described below with reference to the drawings.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a foldable terminal 1000 according to an embodiment of the present application in one state, and fig. 2 is a schematic structural diagram of the foldable terminal 1000 shown in fig. 1 in a second state.
For convenience of description, it is defined that a width direction of the foldable terminal 1000 shown in fig. 2 is an X-axis direction, a length direction of the foldable terminal 1000 is a Y-axis direction, a thickness direction of the foldable terminal 1000 is a Z-axis direction, and the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other two by two.
The foldable terminal 1000 may be a foldable electronic product such as a mobile phone, a tablet computer, a personal computer, a multimedia player, an electronic book reader, a notebook computer, a vehicle-mounted device or a wearable device. In this embodiment, the foldable terminal 1000 is a foldable mobile phone. That is, the foldable terminal 1000 is a mobile phone that can be switched between a folded state and an unfolded state. In the embodiment of the present application, the foldable terminal 1000 can be folded or unfolded along the X-axis direction for example.
In which the foldable terminal 1000 is shown in fig. 1 in a folded state and the foldable terminal 1000 is shown in fig. 2 in an unfolded state. Illustratively, the foldable terminal 1000 shown in fig. 2 has an unfolded angle α of 180 degrees. That is, the foldable terminal 1000 shown in fig. 2 is in a flattened state. It should be noted that the angles illustrated in the embodiments of the present application are all allowed to have a slight deviation. For example, the foldable terminal 1000 shown in fig. 2 has an unfolding angle α of 180 degrees, which means that α may be 180 degrees or about 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc. The angles illustrated hereinafter are to be understood in the same way.
It should be understood that the foldable terminal 1000 shown in the embodiment of the present application is a terminal that can be folded once. In other embodiments, foldable terminal 1000 can also be a terminal that can be folded multiple times (more than two times). At this time, the foldable terminal 1000 may include a plurality of portions, and adjacent two portions may be folded relatively close to each other until the foldable terminal 1000 is in a folded state, and adjacent two portions may be unfolded relatively far from each other until the foldable terminal 1000 is in an unfolded state.
Referring to fig. 2 and 3, fig. 3 is an exploded view of the foldable terminal 1000 shown in fig. 2.
The foldable terminal 1000 includes a foldable device 100 and a display 200, and the display 200 is mounted to the foldable device 100. The display screen 200 comprises a display surface 201 facing away from the foldable device 100, and the display surface 201 is used for displaying information such as text, images or videos. In this embodiment, the display screen 200 includes a first display portion 210, a second display portion 220, and a foldable portion 230, and the foldable portion 230 is connected between the first display portion 210 and the second display portion 220. Wherein the foldable portion 230 can be bent in the X-axis direction.
As shown in fig. 1, when the foldable terminal 1000 is in a folded state, the first display part 210 and the second display part 220 are disposed opposite to each other, and the foldable part 230 is bent. At this time, the display screen 200 is in a folded state, the exposed area of the display screen 200 is small, the probability that the display screen 200 is damaged can be greatly reduced, and the display screen 200 is effectively protected. As shown in fig. 2, when the foldable terminal 1000 is in an unfolded state, the first display portion 210 and the second display portion 220 are unfolded with respect to each other, and the foldable portion 230 is unfolded without being folded. At this time, included angles among the first display portion 210, the second display portion 220, and the foldable portion 230 are all α, and the display screen 200 has a large-area display area, so that large-screen display of the foldable terminal 1000 is realized, and user experience is improved.
It should be understood that the foldable terminal 1000 according to the embodiment of the present application is folded in an inward folding manner, and the display 200 of the foldable terminal 1000 in the folded state is located inside the foldable device 100. In other embodiments, the foldable terminal 1000 can also be folded in an outward folding manner, in which case the display 200 of the foldable terminal 1000 in the folded state is located at the outer side of the foldable device 100.
In this embodiment, the foldable device 100 includes a first housing 110, a second housing 120, and a rotating mechanism 130, wherein the rotating mechanism 130 is connected between the first housing 110 and the second housing 120 to realize the rotating connection between the first housing 110 and the second housing 120. Specifically, the first housing 110 carries the first display portion 210, and the second housing 120 carries the second display portion 220. In other words, the first display portion 210 is mounted to the first housing 110, and the second display portion 220 is mounted to the second housing 120. Wherein the rotating mechanism 130 is disposed opposite to the foldable part 230.
The first housing 110 and the second housing 120 are relatively rotatable by a rotation mechanism 130, so that the foldable device 100 is switched between the folded state and the unfolded state. Specifically, the first housing 110 and the second housing 120 can be rotated to a relative position, so that the foldable device 100 is in a folded state, as shown in fig. 1. At this time, the rotating mechanism 130 is in a folded state. The first housing 110 and the second housing 120 can also rotate relatively to be relatively unfolded, so that the foldable device 100 is in an unfolded state, as shown in fig. 2. At this time, the rotating mechanism 130 is in the deployed state. Illustratively, foldable terminal 1000 is shown in fig. 2 in a flattened state, where an angle between first housing 110 and second housing 120 is α. At this time, the rotating mechanism 130 is in a flattened state.
Referring to fig. 4, fig. 4 is a schematic structural diagram of the first housing 110 and the second housing 120 of the foldable device 100 of the foldable terminal 1000 shown in fig. 3.
The first housing 110 is provided with a first receiving groove 1101, and the first receiving groove 1101 is located on a side of the first housing 110 facing the second housing 120. The opening of the first receiving groove 1101 is located on the top surface of the first housing 110. The first receiving groove 1101 is recessed from the top surface of the first housing 110 toward the bottom surface, and penetrates the first housing 110 toward the side surface of the second housing 120.
The second housing 120 and the first housing 110 have the same structure and are mirror images of the rotating mechanism 130. The second housing 120 is provided with a second receiving groove 1201, and the second receiving groove 1201 is located on a side of the second housing 120 facing the first housing 110. The opening of the second receiving groove 1201 is located on the top surface of the second housing 120. The second receiving groove 1201 is recessed from the top surface of the second housing 120 toward the bottom surface, and penetrates the second housing 120 toward the side surface of the first housing 110. As shown in fig. 3, when the foldable device 100 is in the unfolded state, that is, when the included angle between the first casing 110 and the second casing 120 is α, the first receiving groove 1101 and the second receiving groove 1201 enclose to form a receiving space 1301, and the receiving space 1301 receives the rotating mechanism 130.
It should be noted that the terms "top", "bottom", "left", "right", "front", and "back" used in the description of the foldable terminal 1000 in the embodiments of the present application are mainly explained according to the display orientation of the foldable terminal 1000 in fig. 2, taking the positive direction toward the Z axis as "top", the negative direction toward the Z axis as "bottom", the negative direction toward the X axis as "left", the positive direction toward the Y axis as "back", and the negative direction toward the Y axis as "front", which do not form a limitation to the orientation of the foldable terminal 1000 in the practical application scenario.
Referring to fig. 5, fig. 5 is a schematic structural diagram of the rotating mechanism 130 of the foldable device 100 in the foldable terminal 1000 shown in fig. 3.
In this embodiment, the rotating mechanism 130 has a symmetry plane O, and the rotating mechanism 130 is mirror-symmetrical about the symmetry plane O. The rotating mechanism 130 includes a rotating shaft 10 and a rotating assembly 20. There are two rotating shafts 10, and the two rotating shafts 10 are a first rotating shaft 10a and a second rotating shaft 10b, respectively. The first and second rotating shafts 10a and 10b are arranged side by side and spaced apart from each other in an axial direction perpendicular to the first rotating shaft 10a. The axial directions of the first rotating shaft 10a and the second rotating shaft 10b are both Y-axis directions, and the axial direction perpendicular to the first rotating shaft 10a is an X-axis direction. At this time, the first and second rotating shafts 10a and 10b are arranged at intervals in the X-axis direction. The first turning shaft 10a is located on the side of the second turning shaft 10b toward the positive X-axis direction.
It should be understood that the relative positional relationships mentioned in the embodiments of the present application are defined in terms of the state of the art, rather than being strictly defined mathematically, and that a small deviation is allowed, either absolutely or approximately. For example, the term "perpendicular" between A and B means that A and B are perpendicular or nearly perpendicular, and the angle between A and B may be between 80 degrees and 100 degrees.
The rotating assembly 20 is sleeved on the two rotating shafts 10. In this embodiment, there are two rotating assemblies 20, and the two rotating assemblies 20 are a first rotating assembly 20a and a second rotating assembly 20b, respectively. The first rotating unit 20a and the second rotating unit 20b are arranged at intervals in the Y-axis direction. The first rotating unit 20a is located on one side of the second rotating unit 20b facing the negative direction of the Y-axis. In other embodiments, there may be one or more than three rotating assemblies 20, and the number of the rotating assemblies is not particularly limited in the embodiments of the present application.
Referring to fig. 6, fig. 6 is a schematic structural diagram of the first rotating shaft 10a and the second rotating shaft 10b in the rotating mechanism 130 shown in fig. 5.
The first rotation axis 10a is mirror-symmetric with respect to the symmetry plane O. The first rotating shaft 10a includes a rotating shaft section 11a and a damping section 12a, and the rotating shaft section 11a and the damping section 12a are arranged at intervals along the Y-axis direction. In this embodiment, there are two rotation shaft sections 11a, and the two rotation shaft sections 11a are arranged at intervals along the Y-axis direction and are respectively located at two opposite ends of the first rotation shaft 10a. The two rotating shaft segments 11a are a first rotating shaft segment 13a and a second rotating shaft segment 14a respectively, and the first rotating shaft segment 13a is positioned on one side of the second rotating shaft segment 14a facing the negative direction of the Y axis. Wherein the first and second shaft segments 13a, 14a are mirror-symmetrical with respect to the symmetry plane O. In other embodiments, the first and second shaft segments 13a and 14a may not be mirror symmetric about the symmetry plane O.
The number of the damping sections 12a is two, and the two damping sections 12a are located between the first rotating shaft section 13a and the second rotating shaft section 14a and are arranged at intervals along the Y-axis direction. The two damping sections 12a are respectively a first damping section 15a and a second damping section 16a, and the first damping section 15a is located on one side of the second damping section 16a facing the negative direction of the Y axis. At this time, the first damper segment 15a is closer to the first shaft segment 13a than the second damper segment 16a is, and is spaced apart from the first shaft segment 13a. The second damper segment 16a is closer to the second shaft segment 14a than the first damper segment 15a, and is spaced apart from the second shaft segment 14 a. Wherein the first damping section 15a and the second damping section 16a are mirror-symmetrical with respect to the symmetry plane O. In other embodiments, the first damping section 15a and the second damping section 16a may not be mirror symmetric with respect to the symmetry plane O.
The second rotating shaft 10b has the same structure as the first rotating shaft 10a. The second rotating shaft 10b is mirror-symmetrical with respect to the symmetry plane O. The second rotating shaft 10b includes a rotating shaft section 11b and a damping section 12b, and the rotating shaft section 11b and the damping section 12b are arranged at intervals along the Y-axis direction. In this embodiment, there are two rotation shaft sections 11b, and the two rotation shaft sections 11b are arranged at intervals along the Y-axis direction and are respectively located at two opposite ends of the second rotation shaft 10b. The two rotating shaft sections 11b are a first rotating shaft section 13b and a second rotating shaft section 14b respectively, and the first rotating shaft section 13b is positioned on one side of the second rotating shaft section 14b facing to the negative direction of the Y axis. Wherein the first and second shaft sections 13b, 14b are mirror-symmetrical with respect to the symmetry plane O. In other embodiments, the first and second shaft segments 13b, 14b may not be mirror symmetric about the symmetry plane O.
There are two damping sections 12b, and the two damping sections 12b are located between the first rotating shaft section 13b and the second rotating shaft section 14b and are arranged at intervals along the Y-axis direction. The two damping sections 12b are respectively a first damping section 15b and a second damping section 16b, and the first damping section 15b and the second damping section 16b are mirror-symmetrical with respect to a symmetry plane O. Wherein, the first damping section 15b is positioned at one side of the second damping section 16b facing to the Y-axis negative direction. At this time, the first damper segment 15b is closer to the first shaft segment 13b than the second damper segment 16b and is spaced apart from the first shaft segment 13 b. The second damping section 16b is closer to the second shaft section 14b than the first damping section 15b, and is spaced apart from the second shaft section 14 b. In other embodiments, the first damping section 15b and the second damping section 16b may not be mirror symmetric with respect to the symmetry plane O.
Referring to fig. 5, the first rotating assembly 20a is sleeved on the first rotating shaft 10a and the second rotating shaft 10b. The first rotating assembly 20a includes a first swing arm set 21a and a second swing arm set 22a, the first swing arm set 21a is sleeved on the first rotating shaft 10a, and the second swing arm set 22a is sleeved on the second rotating shaft 10b. The first swing arm group 21a is rotatable with respect to the first rotation axis 10a, and the second swing arm group 22a is rotatable with respect to the second rotation axis 10b. The rotation direction of the first swing arm group 21a relative to the first rotation axis 10a is opposite to the rotation direction of the second swing arm group 22a relative to the second rotation axis 10b. Illustratively, the first swing arm assembly 21a is counterclockwise (shown by ω) with respect to the first rotating shaft 10a 1 Direction), the second swing arm group 22a rotates clockwise (shown by ω) relative to the second rotating shaft 10b 2 Direction) of rotation. Alternatively, when the first swing arm group 21a rotates clockwise with respect to the first rotation shaft 10a, the second swing arm group 22a rotates counterclockwise with respect to the second rotation shaft 10b.
The first swing arm set 21a is sleeved on the first rotating shaft section 13a of the first rotating shaft 10a. In the present embodiment, the first swing arm group 21a includes a first swing arm 23a and a first auxiliary swing arm 24a. The first swing arm 23a is sleeved on the first rotating shaft section 13a, and the first auxiliary swing arm 24a is located at the bottom side of the first swing arm 23a and is adapted to the first swing arm 23 a.
When the first swing arm 23a rotates relative to the first rotating shaft 10a, the first auxiliary swing arm 24a rotates relative to the first rotating shaft 10a and slides relative to the first swing arm 23a in a direction away from the first rotating shaft 10a or closer to the first rotating shaft 10a. Illustratively, when the first swing arm 23a and the first auxiliary swing arm 24a are rotated in the counterclockwise direction with respect to the first rotation axis 10a, the first auxiliary swing arm 24a slides in a direction away from the first rotation axis 10a with respect to the first swing arm 23 a. When the first swing arm 23a and the first auxiliary swing arm 24a rotate in the clockwise direction with respect to the first rotation axis 10a, the first auxiliary swing arm 24a slides in a direction approaching the first rotation axis 10a with respect to the first swing arm 23 a.
The second swing arm group 22a has the same structure as the first swing arm group 21 a. The second swing arm set 22a is sleeved on the first rotating shaft section 13b of the second rotating shaft 10b and is mirror-symmetrical to the first swing arm set 21 a. In the present embodiment, the second swing arm group 22a includes a second swing arm 25a and a second auxiliary swing arm 26a. The second swing arm 25a is sleeved on the first rotating shaft section 13b, and the second auxiliary swing arm 26a is located at the bottom side of the second swing arm 25a and adapted to the second swing arm 25 a.
When the second swing arm 25a rotates relative to the second rotation axis 10b, the second auxiliary swing arm 26a rotates relative to the second rotation axis 10b and slides relative to the second swing arm 25a in a direction away from the second rotation axis 10b or close to the second rotation axis 10b. Illustratively, when the second swing arm 25a and the second auxiliary swing arm 26a rotate in the clockwise direction with respect to the second rotation shaft 10b, the second auxiliary swing arm 26a slides in a direction away from the second rotation shaft 10b with respect to the second swing arm 25 a. When the second swing arm 25a and the second auxiliary swing arm 26a rotate in the counterclockwise direction with respect to the second rotation shaft 10b, the second auxiliary swing arm 26a slides in a direction approaching the second rotation shaft 10b with respect to the second swing arm 25 a.
The second rotating assembly 20b has the same structure as the first rotating assembly 20 a. The second rotating assembly 20b is sleeved on the first rotating shaft 10a and the second rotating shaft 10b, and is mirror-symmetrical to the first rotating assembly 20a about the symmetry plane O. The second rotating assembly 20b includes a first swing arm set 21b and a second swing arm set 22b, the first swing arm set 21b is sleeved on the first rotating shaft 10a, and the second swing arm set 22b is sleeved on the second rotating shaft 10b. Specifically, the first swing arm 23b of the first swing arm group 21b is sleeved on the second rotating shaft section 14b of the first rotating shaft 10a, and the first auxiliary swing arm 24b is located at the bottom side of the first swing arm 23b and is adapted to the first swing arm 23 b. The second swing arm 25b of the second swing arm group 22b is sleeved on the second rotating shaft section 14b of the second rotating shaft 10b, and the second auxiliary swing arm 26b is located at the bottom side of the second swing arm 25b and is adapted to the second swing arm 25 b.
It should be noted that the structure of the second rotating assembly 20b is substantially the same as that of the first rotating assembly 20a, and the description of the structure of the second rotating assembly 20b can refer to the description of the first rotating assembly 20a, and will not be repeated herein. In other embodiments, second rotating assembly 20b and first rotating assembly 20a may not be mirror symmetric about plane of symmetry O.
In addition, the rotating mechanism 130 further includes a transmission assembly 30, and the transmission assembly 30 is connected between the two rotating shafts 10. In this embodiment, the transmission assembly 30 includes a first transmission member 31 and a second transmission member 32, and the first transmission member 31 and the second transmission member 32 are connected between the two rotation shafts 10 and are arranged at intervals along the Y-axis direction. For example, the first transmission member 31 and the second transmission member 32 may be gears or other components capable of realizing transmission. Specifically, the first transmission member 31 is connected to one end of the two rotation shafts 10 facing the negative direction of the Y axis, and the second transmission member 32 is connected to one end of the two rotation shafts 10 facing the positive direction of the Y axis. The first transmission member 31 and the second transmission member 32 are mirror-symmetrical with respect to the symmetry plane O. In other embodiments, the first transmission member 31 and the second transmission member 32 may not be mirror-symmetrical with respect to the symmetry plane O.
When the first swing arm set 21a of the first rotating assembly 20a and the first swing arm set 21b of the second rotating assembly 20b rotate relative to the first rotating shaft 10a, the transmission assembly 30 drives the second swing arm set 22a of the first rotating assembly 20a and the second swing arm set 22b of the second rotating assembly 20b to rotate relative to the second rotating shaft 10b. Alternatively, when the second swing arm group 22a of the first rotating assembly 20a and the second swing arm group 22b of the second rotating assembly 20b rotate relative to the second rotating shaft 10b, the transmission assembly 30 rotates the first swing arm group 21a of the first rotating assembly 20a and the first swing arm group 21b of the second rotating assembly 20b relative to the first rotating shaft 10a to realize synchronous rotation between the first swing arm group 21a and the first swing arm group 21b and the first rotating shaft 10a, and between the second swing arm group 22a and the second swing arm group 22b and the second rotating shaft 10b.
Referring to fig. 3 and 4, when the foldable device 100 is in the unfolded state, the rotating mechanism 130 is installed in the accommodating space 1301. The partial rotation mechanism 130 is mounted in the first housing groove 1101 of the first housing 110, and the partial rotation mechanism 130 is mounted in the second housing groove 1201 of the second housing 120. Specifically, the first rotating shaft 10a, the first swing arm group 21a of the first rotating unit 20a, and the first swing arm group 21b of the second rotating unit 20b are all mounted in the first housing groove 1101. The second rotation shaft 10b, the second swing arm group 22a of the first rotation unit 20a, and the second swing arm group 22b of the second rotation unit 20b are mounted in the second housing groove 1201. Wherein, the first auxiliary swing arm 24a of the first rotating assembly 20a and the first auxiliary swing arm 28b of the second rotating assembly 20b are both fixedly connected to the first housing 110. The second swing assist arm 26a of the first rotating assembly 20a and the second swing assist arm 26b of the second rotating assembly 20b are both fixedly connected to the second housing 120.
When the first housing 110 and the second housing 120 are folded relatively, the first housing 110 drives the first swing arm set 21a of the first rotating assembly 20a and the first swing arm set 21b of the second rotating assembly 20b to rotate counterclockwise relative to the first rotating shaft 10a, and the second housing 120 drives the second swing arm set 22a of the first rotating assembly 20a and the second swing arm set 22b of the second rotating assembly 20b to rotate relative to the second rotating shaft 10b. At this time, the first auxiliary swing arm 24a of the first rotating assembly 20a and the first auxiliary swing arm 28b of the second rotating assembly 20b both slide in a direction away from the first rotating shaft 10a, and the second auxiliary swing arm 26a of the first rotating assembly 20a and the second auxiliary swing arm 26b of the second rotating assembly 20b both slide in a direction away from the second rotating shaft 10b, so as to preset a sufficient space for the foldable portion 230 of the display screen 200, so that the foldable portion 230 is not bent at a large angle, thereby preventing the display screen 200 from being damaged, and contributing to prolonging the service life of the display screen 200.
When the first casing 110 and the second casing 120 are relatively unfolded, the first casing 110 drives the first swing arm set 21a of the first rotating assembly 20a and the first swing arm set 21b of the second rotating assembly 20b to rotate clockwise relative to the first rotating shaft 10a, and the second casing 120 drives the second swing arm set 22a of the first rotating assembly 20a and the second swing arm set 22b of the second rotating assembly 20b to rotate counterclockwise relative to the second rotating shaft 10b. At this time, the first auxiliary swing arm 24a of the first rotating assembly 20a and the first auxiliary swing arm 28b of the second rotating assembly 20b both slide in a direction toward the first rotating shaft 10a, and the second auxiliary swing arm 26a of the first rotating assembly 20a and the second auxiliary swing arm 26b of the second rotating assembly 20b both slide in a direction toward the second rotating shaft 10b to retract the space previously reserved for the foldable portion 230, and slowly pull the foldable portion 230 flat to achieve good support of the display screen 200.
Referring to fig. 5, the rotating mechanism 130 further includes four damping members 40, and the four damping members 40 are a first damping member 41, a second damping member 42, a third damping member 43 and a fourth damping member 44, respectively. Specifically, the first damping member 41 and the third damping member 43 are both sleeved on the first rotating shaft 10a and are arranged at intervals along the Y-axis direction. The second damping member 42 and the fourth damping member 44 are both sleeved on the second rotating shaft 10b and are arranged at intervals along the Y-axis direction. The first damping member 41 and the third damping member 43 are both fixedly connected to the first casing 110 and can rotate relative to the first rotating shaft 10a. The second damping member 42 and the fourth damping member 44 are both fixedly connected to the second housing 120 and are rotatable with respect to the second rotation shaft 10b.
In this embodiment, the first damping member 41 is sleeved on the first damping section 15a of the first rotating shaft 10a and is in interference fit with the first damping section 15 a. The third damping member 43 is sleeved on the second damping section 16a of the first rotating shaft 10a, and is in interference fit with the second damping section 16 a. Specifically, the first damper 41 and the third damper 43 are located between the first swing arm 23a of the first rotating assembly 20a and the first swing arm 23b of the second rotating assembly 20b, and are mirror-symmetrical about the symmetry plane O. The first damper 41 is located on the side of the third damper 43 facing the negative Y-axis direction. At this time, the first damping member 41 is closer to the first swing arm 23a of the first rotating assembly 20a than the third damping member 43, and is spaced apart from the first swing arm 23 a. The third damper 43 is closer to the first swing arm 23b of the second rotating assembly 20b than the first damper 41 is, and is spaced apart from the first swing arm 23 b.
The second damping member 42 is sleeved on the first damping section 15b of the second rotating shaft 10b and is in interference fit with the first damping section 15 b. The fourth damping member 44 is sleeved on the second damping section 16b of the second rotating shaft 10b and is in interference fit with the second damping section 16 b. Specifically, the second and fourth damping members 42 and 44 are located between the second swing arm 25a of the first rotating assembly 20a and the second swing arm 25b of the second rotating assembly 20b, and are mirror-symmetrical about the plane of symmetry O. The second damping member 42 is located on one side of the fourth damping member 44 facing the negative Y-axis direction. At this time, the second damper 42 is closer to the second swing arm 25a of the first rotating assembly 20a than the fourth damper 44 is, and is spaced apart from the second swing arm 25 a. The fourth damping member 44 is closer to the second swing arm 25b of the second rotating assembly 20b than the second damping member 42, and is spaced apart from the second swing arm 25 b.
In the folding and unfolding processes of the foldable terminal 1000, the friction force generated by the rotation of the first damping part 41 and the third damping part 43 relative to the first rotating shaft 10a and the friction force generated by the rotation of the second damping part 42 and the fourth damping part 44 relative to the second rotating shaft 10b can provide the damping force of the foldable terminal 1000 in the folding and unfolding processes, ensure the damping hand feeling of a user when the foldable terminal 1000 is folded and unfolded, and improve the use experience of the user.
It can be understood that, in the present embodiment, the rotating mechanism 130 includes four swing arm sets, which are the first swing arm set 21a and the second swing arm set 22b of the first rotating assembly 20a, and the first swing arm set 21b and the second swing arm set 22b of the second rotating assembly 20b, respectively. The first swing arm group 21a of the first rotating assembly 20a and the first swing arm group 21b of the second rotating assembly 20b are arranged at intervals along the Y-axis direction, and are mirror-symmetrical with respect to the symmetry plane O. The second swing arm group 22b of the first rotating assembly 20a and the second swing arm group 22b of the second rotating assembly 20b are arranged at intervals along the Y-axis direction, and are mirror-symmetrical with respect to the symmetry plane O. At this time, the four swing arm sets have substantially the same structure.
Next, the configuration of the four swing arm groups will be specifically described by taking the first swing arm group 21a of the first rotating unit 20a as an example. The structures of the second swing arm group 22b of the first rotating assembly 20a, the first swing arm group 21b of the second rotating assembly 20b and the second swing arm group 22b can be described with reference to the following structures, and will not be described in detail later.
Referring to fig. 5, 7 and 8, fig. 7 is a schematic structural diagram of a first swing arm set 21a of the first rotating assembly 20a shown in fig. 5 according to an embodiment, and fig. 8 is an exploded structural diagram of the first swing arm set 21a shown in fig. 7.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. Specifically, the first rotating portion 27a is sleeved on the first rotating shaft section 13a, and the first swinging portion 28a extends relative to the first rotating shaft 10a. When the first swing portion 28a rotates relative to the first rotation axis 10a, the first rotation portion 27a is rotated relative to the first rotation axis 10a.
The first swing arm 23a is provided with a first hollow 1. Specifically, the first hollow portion 1 is disposed on the first swing portion 28a. The first hollow part 1 is along the first direction D 1 And (4) extending. Wherein, the first hollow parts 1 are multiple, the multiple first hollow parts 1 are along the second direction D 2 Are arranged at intervals. In addition, the first direction D 1 And a second direction D 2 Different. First direction D 1 A second direction D for the first rotating part 27a to point to the first swinging part 28a 1 In the axial direction of the first rotating portion 27 a. When the foldable device 100 (shown in FIG. 3) is in the unfolded state, the first direction D 1 Is the X-axis direction, the second direction D 2 In the Y-axis direction.
In the present embodiment, the first hollow portion 1 is an elongated hole. Specifically, the opening of the first hollow portion 1 is located on the top surface of the first swing portion 28a. The first hollow portion 1 is recessed from the top surface of the first swing portion 28a toward the bottom surface, and penetrates through the bottom surface of the first swing portion 28a. That is, the first hollow portion 1 penetrates the first swing portion 28a in the thickness direction of the first swing portion 28a. Illustratively, there are 5 first hollow parts 1, and five first hollow parts 1 are along the second direction D 2 Are arranged at intervals. In other embodiments, the first hollow portions 1 are elongated grooves, and at this time, the first hollow portions 1 do not penetrate through the bottom surface of the first swing portion 28a, or the number of the first hollow portions 1 may also be 1, 2, or 3, and the like, and the number of the first hollow portions 1 is not specifically limited in the embodiments of the present application.
The first auxiliary swing arm 24a is located on the top side of the first swing portion 28a, and is fitted to the first swing portion 28a. In the present embodiment, the first auxiliary swing arm 24a has a planar plate shape. The top surface of the first swing auxiliary arm 24a is in contact with the bottom surface of the first swing portion 28a. First swing arm 23a and first auxiliary swing arm 24a rotate relative to the first rotationWhen the shaft 10a rotates in the counterclockwise direction, the first auxiliary swing arm 24a rotates in the first direction D relative to the first swing arm 23a 1 To slide away from the first rotating shaft 10a. When the first swing arm 23a and the first auxiliary swing arm 24a rotate clockwise with respect to the first rotating shaft 10a, the first auxiliary swing arm 24a rotates in the first direction D with respect to the first swing arm 23a 1 And slides in the opposite direction to approach the first rotating shaft 10a.
In the first swing arm assembly 21a shown in this embodiment, the design of the first hollow-out portion 1 on the first swing arm 23a can effectively reduce the mass of the first swing arm 23a, and realize the weight reduction of the first swing arm assembly 21a, thereby realizing the weight reduction of the rotating mechanism 130, and facilitating the realization of the light and thin design of the foldable terminal 1000. In addition, the first hollow portion 1 is along the first direction D 1 Extended, the first swing arm 23a is in the first direction D 1 Is greater than in the second direction D 2 So that the first swing arm 23a is in the first direction D 1 The bending resistance of the first swing arm 23a is kept sufficiently strong, and the second direction D of the first swing arm 23a is sacrificed 2 The bending resistance is reduced, and the use strength of the rotating mechanism 130 is ensured.
Referring to fig. 9 and 10, fig. 9 is a schematic structural view of the first swing arm assembly 21a shown in fig. 5 according to a second embodiment, and fig. 10 is an exploded structural view of the first swing arm assembly 21a shown in fig. 9.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. The first swing portion 28a is provided with a first hollow portion 1, and the first auxiliary swing arm 24a is in a planar plate shape. The first swing arm assembly 21a shown in the present embodiment is different from the first swing arm assembly 21a shown in the above embodiment in that the first hollow portion 1 includes a plurality of sub hollow portions 2, and the plurality of sub hollow portions 2 are along the first direction D 1 Are arranged at intervals. Wherein, the sub hollow parts 2 are along the first direction D 1 Arranged at a density greater than that along the second direction D 2 Density of arrangement such that the first swing arm 23a is along the first direction D 1 Is greater than in the second direction D 2 At the expense of the bending strength of the first swing arm 23a in the second direction D 2 OnThe bending resistance is reduced, and the use strength of the rotating mechanism 130 is ensured.
In the present embodiment, the sub hollow portion 2 is a circular hole. Specifically, the opening of the sub hollow portion 2 is located on the top surface of the first swing portion 28a. The sub hollow portion 2 is recessed from the top surface of the first swing portion 28a toward the bottom surface, and penetrates through the bottom surface of the first swing portion 28a. That is, the sub hollow-out portion 2 penetrates the first swing portion 28a in the thickness direction of the first swing portion 28a. Illustratively, there are 5 first hollow-out portions 1, each first hollow-out portion 1 includes 6 sub hollow-out portions 2, and 30 sub hollow-out portions 2 are arranged at intervals to form a hole matrix with 5 rows and 6 columns. The row direction of the hole matrix is a first direction D 1 The row direction of the hole matrix is a second direction D 2 . In other embodiments, the number of the first hollow portions 1 may also be 1, 2, or 3, or the like, or the first hollow portions 1 may also include sub hollow portions 2 with 2, 3, or 4, or the sub hollow portions 2 may also be rectangular or other special-shaped holes, or the sub hollow portions 2 may also be circular, rectangular, or other special-shaped grooves, which is not specifically limited in this application.
Referring to fig. 11 to 13, fig. 11 is a schematic structural view of a first swing arm set 21a of the first rotating assembly 20a shown in fig. 5 in a third embodiment, fig. 12 is an exploded structural view of the first swing arm set 21a shown in fig. 11, and fig. 13 is a structural view of a first swing arm 23a in the first swing arm set 21a shown in fig. 12 in another angle.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. The first swing portion 28a is provided with a first hollow portion 1. The first swing arm group 21a according to the present embodiment is different from the first swing arm group 21a according to the above embodiment in that the first hollowed-out portion 1 is a strip-shaped groove. The first swing arm 23a includes a first mating surface 3, and the opening of the first hollow portion 1 is located on the first mating surface 1. The first engagement surface 3 is a bottom surface of the first swing portion 28a. The first hollow portion 1 is recessed from the bottom surface of the first swing portion 28a toward the top surface, and penetrates the right side surface of the first swing portion 28a. Wherein, along the direction of the depression of the first hollow-out portion 1, the width of the first hollow-out portion 1 is equal. In the present embodiment, the cross section of the first hollow portion 1 is rectangular. In other embodiments, the first hollow portion 1 may also be a strip-shaped hole, in which case, the first hollow portion 1 penetrates through the top surface of the first swing portion 28a, or the first hollow portion 1 may not penetrate through the right side surface of the first swing portion 28a.
Wherein the first hollow part 1 is along a first direction D 1 And (4) extending. Illustratively, there are five first hollow portions 1, and five first hollow portions 1 are along the second direction D 2 Are arranged at intervals. In other embodiments, the number of the first hollowed-out portions 1 may also be one, two, three, or the like, and the structure and the number of the first hollowed-out portions 1 are not specifically limited in the embodiments of the present application.
The first auxiliary swing arm 24a includes a second mating face 5 that contacts the first mating face 3. Illustratively, the second mating surface 5 is a top surface of the first auxiliary swing arm 24a. In the present embodiment, the first auxiliary swing arm 24a is provided with the slider 4. Specifically, the sliding block 4 is connected to the second matching surface 5, and the sliding block 4 is along the first direction D 1 And (4) extending. The slider 4 protrudes from the top surface of the first swing auxiliary arm 24a in a direction away from the bottom surface. Wherein, there are a plurality of sliding blocks 4, and the plurality of sliding blocks 4 are along the second direction D 2 Are arranged at intervals.
Wherein the width of the slider 4 is uniform in the protruding direction of the slider 4. In this embodiment, the slider 4 is a long-strip slider, and the cross section of the slider 4 is rectangular. The left side surface of the slider 4 is flush with the left side surface of the first auxiliary swing arm 24a. Illustratively, there are five sliders 4, and five sliders 4 are arranged along the second direction D 2 Are arranged at intervals. In other embodiments, the number of the sliding blocks 4 may also be one, two, three, or the like, and the number of the sliding blocks 4 is not specifically limited in the embodiments of the present application.
In this embodiment, each slider 4 is located in one first hollow portion 1 and can slide in the first hollow portion 1. When the first swing arm 23a and the first auxiliary swing arm 24a rotate in the counterclockwise direction with respect to the first rotation shaft 10a, the first auxiliary swing arm 24a rotates in the first direction D with respect to the first swing arm 23a 1 Sliding, the slide 4 is in the first hollow part 1 along the first direction D 1 To slide the first auxiliary swing arm 24a away from the first rotating shaft 10a.When the first swing arm 23a and the first auxiliary swing arm 24a rotate clockwise with respect to the first rotating shaft 10a, the first auxiliary swing arm 24a rotates in the first direction D with respect to the first swing arm 23a 1 Sliding in the opposite direction, the slide block 4 slides in the first hollow part 1 along the first direction D 1 And slides in the opposite direction to bring the first auxiliary swing arm 24a close to the first rotating shaft 10a.
Compared with the first swing arm group 21a shown in the first and second embodiments, in the first swing arm group 21a shown in the present embodiment, the design of the first hollow portion 1 of the first swing arm 23a and the slider 4 of the first auxiliary swing arm 24a not only can reduce the weight of the first swing arm group 21a, but also can ensure that the first swing arm 23a is along the first direction D 1 The bending resistance of the first swing arm 23a can also be increased, and the fitting area between the first swing arm 23a and the first auxiliary swing arm 24a can be increased, so as to ensure the rotational stability of the rotating mechanism 130. Moreover, the slider of the first auxiliary swing arm 24a and the first swing arm group 21a can reuse the space in the thickness direction, which is beneficial to reducing the thickness of the first swing arm group 21a and realizing the light and thin design of the rotating mechanism 130. Furthermore, the first hollow-out 1 and the slider 4 are both along the first direction D 1 The sliding track of the first auxiliary swing arm 24a relative to the first swing arm 23a can be limited, and the use reliability of the rotating mechanism 130 can be ensured.
Referring to fig. 14 to 16, fig. 14 is a schematic structural view of a first swing arm set 21a of the first rotating assembly 20a shown in fig. 5 in a fourth embodiment, fig. 15 is an exploded structural view of the first swing arm set 21a shown in fig. 14, and fig. 16 is a schematic structural view of the first swing arm set 21a in the first swing arm set 21a shown in fig. 15 at another angle.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. The first swing portion 28a is provided with a first hollow portion 1, and the first auxiliary swing arm 24a is provided with a slider 4. The first swing arm group 21a according to the present embodiment is different from the first swing arm group 21a according to the third embodiment in that the width of the first hollow portion 1 gradually decreases in the depression direction of the first hollow portion 1. The width of the slider 4 becomes gradually smaller in the projecting direction of the slider 4. In the present embodiment, the cross sections of the first hollow portion 1 and the slider 4 are both semicircular.
Compared with the first swing arm group 21a shown in the first and second embodiments, in the first swing arm group 21a shown in the present embodiment, the design of the first hollow portion 1 of the first swing arm 23a and the slider 4 of the first auxiliary swing arm 24a not only can reduce the weight of the first swing arm group 21a, but also can ensure that the first swing arm 23a is along the first direction D 1 The bending resistance of the first swing arm 23a can also be increased, and the fitting area between the first swing arm 23a and the first auxiliary swing arm 24a can be increased, so as to ensure the rotational stability of the rotating mechanism 130. Moreover, the slider of the first auxiliary swing arm 24a and the first swing arm assembly 21a can reuse the space in the thickness direction, which is beneficial to reducing the thickness of the first swing arm assembly 21a and realizing the light and thin design of the rotating mechanism 130. Furthermore, the first hollow-out 1 and the slider 4 are both along the first direction D 1 The sliding track of the first auxiliary swing arm 24a relative to the first swing arm 23a can be limited, and the use reliability of the rotating mechanism 130 can be ensured.
Referring to fig. 17 to 19, fig. 17 is a schematic structural view of a first swing arm set 21a of the first rotating assembly 20a shown in fig. 5 according to a fifth embodiment, fig. 18 is an exploded structural view of the first swing arm set 21a shown in fig. 17, and fig. 19 is a schematic structural view of a first swing arm 23a of the first swing arm set 21a shown in fig. 18 at another angle.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. The first swing portion 28a is provided with a first hollow portion 1, and the first auxiliary swing arm 24a is provided with a slider 4. The first swing arm group 21a shown in the present embodiment is different from the first swing arm group 21a shown in the fourth embodiment in that the cross sections of the first hollow portion 1 and the slider 4 are both triangular.
Compared with the first swing arm group 21a shown in the first and second embodiments, in the first swing arm group 21a shown in the present embodiment, the design of the first hollow portion 1 of the first swing arm 23a and the slider 4 of the first auxiliary swing arm 24a not only can reduce the weight of the first swing arm group 21a, but also can ensure that the first swing arm 23a is along the first direction D 1 Can also increase the first bending resistanceThe fitting area between the swing arm 23a and the first auxiliary swing arm 24a ensures the rotational stability of the rotating mechanism 130. Moreover, the slider of the first auxiliary swing arm 24a and the first swing arm 23a can reuse the space in the thickness direction, which is beneficial to reducing the thickness of the first swing arm set 21a and realizing the light and thin design of the rotating mechanism 130. Furthermore, the first hollow-out 1 and the slider 4 are both along the first direction D 1 The sliding track of the first auxiliary swing arm 24a relative to the first swing arm 23a can be limited, and the use reliability of the rotating mechanism 130 can be ensured.
Referring to fig. 20 to 22, fig. 20 is a schematic structural view of a first swing arm group 21a of the first rotating assembly 20a shown in fig. 5 in a sixth embodiment, fig. 21 is an exploded structural view of the first swing arm group 21a shown in fig. 20, and fig. 22 is a structural view of a first swing arm 23a of the first swing arm group 21a shown in fig. 21 at another angle.
In the first swing arm group 21a, the first swing arm 23a includes a first rotating portion 27a and a first swinging portion 28a, and the first rotating portion 27a and the first swinging portion 28a are fixedly connected to each other. The first swing portion 28a is provided with a first hollow portion 1, and the first auxiliary swing arm 24a is provided with a slider 4. The first swing arm group 21a according to the present embodiment is different from the first swing arm group 21a according to the third to fifth embodiments in that the width of the first hollow portion 1 gradually increases along the depression direction of the first hollow portion 1. The width of the slider 4 becomes gradually larger in the projecting direction of the slider 4. In the present embodiment, the cross sections of the first hollow portion 1 and the slider 4 are both inverted frustum-shaped.
Compared with the first swing arm group 21a shown in the third to fifth embodiments, in the first swing arm group 21a shown in the present embodiment, the first hollow portion 1 of the first swing arm 23a and the slider 4 of the first auxiliary swing arm 24a are designed in an inverted frustum shape, so that when the first swing arm assembly 51 rotates relative to the first rotating shaft 10a, the first swing arm 23a and the first auxiliary swing arm 24a do not separate from each other in the thickness direction of the first swing arm assembly 51, the assembly stability between the first swing arm 23a and the first auxiliary swing arm 24a is improved, and the use reliability of the rotating mechanism 130 is ensured.
Referring to fig. 5, in the second swing arm set 22a of the first rotating assembly 20a, the second swing arm 25a includes a second rotating portion and a second swinging portion (not shown), and the second rotating portion and the second swinging portion are fixedly connected to each other. Specifically, the second rotating portion is sleeved on the first rotating shaft section 13b of the second rotating shaft 10b, and the second swinging portion extends out relative to the second rotating shaft 10b. When the second swing portion rotates relative to the second rotating shaft 10, the second swing portion is driven to rotate relative to the second rotating shaft 10b.
The second swing arm 25a is provided with a plurality of second hollow portions (not shown), each second hollow portion extends along a first direction of the second swing arm 25a, the plurality of second hollow portions are arranged at intervals along a second direction of the second swing arm 25a, and the first direction of the second swing arm 25a is different from the second direction of the second swing arm 25 a. The first direction of the second swing arm 25a is the direction in which the second rotating portion points to the second swing portion, and the second direction of the second swing arm 25a is the axial direction of the second rotating portion.
In the rotating mechanism 130 shown in the present application, the second hollow-out portion is designed to effectively reduce the mass of the second swing arm 25a, and further realize weight reduction of the rotating mechanism 130. In addition, the design of the second hollow portion can also keep the weight balance of the first swing arm 23a and the second swing arm 25a, so that the gravity center of the rotating mechanism 130 is kept balanced, and the use reliability of the rotating mechanism 130 is ensured. In addition, the second hollow-out portion extends along the first direction of the second swing arm 25a, so that the bending resistance of the second swing arm 25a in the first direction along the second swing arm 25a is kept strong enough, and the use strength of the rotating mechanism 130 is ensured.
It should be understood that, in the rotating mechanism 130 shown in the present embodiment, the structures of the first swing arm group 21a of the first rotating assembly 20a, the second swing arm group 22a of the first rotating assembly 20a, the first swing arm group 21b of the second rotating assembly 20b, and the second swing arm group 22b of the second rotating assembly 20b may be the same, and all adopt one of the structures shown in the above six embodiments, or adopt one or more of the structures shown in the above six embodiments, which is not specifically limited in this application.
The above embodiments and embodiments of the present application are only examples and embodiments, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and all the changes or substitutions should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (23)

1. A rotating mechanism is characterized by comprising a first rotating shaft, a second rotating shaft, a first swing arm and a second swing arm, wherein the first rotating shaft and the second rotating shaft are arranged side by side at intervals along the axial direction perpendicular to the first rotating shaft, the first swing arm is sleeved on the first rotating shaft and can rotate relative to the first rotating shaft, the second swing arm is sleeved on the second rotating shaft and can rotate relative to the second rotating shaft, and the rotating direction of the first swing arm relative to the first rotating shaft is opposite to the rotating direction of the second swing arm relative to the second rotating shaft;
the first swing arm is provided with a plurality of first hollow-out portions, each first hollow-out portion extends along a first direction of the first swing arm, the first hollow-out portions are arranged at intervals along a second direction of the first swing arm, and the first direction of the first swing arm is different from the second direction of the second swing arm.
2. The rotating mechanism according to claim 1, wherein the second swing arm has a plurality of second hollow portions, each of the second hollow portions extends along a first direction of the second swing arm, the plurality of second hollow portions are spaced along a second direction of the second swing arm, and the first direction of the second swing arm is different from the second direction of the second swing arm.
3. The rotating mechanism according to claim 1 or 2, wherein each of the first hollow portions comprises a plurality of sub hollow portions, the plurality of sub hollow portions are arranged at intervals along the first direction, and the density of the sub hollow portions along the first direction of the first swing arm is greater than the density of the sub hollow portions along the second direction of the second swing arm, wherein the sub hollow portions are grooves or holes.
4. A rotating mechanism according to claim 1 or 2, wherein the first hollow-out portion is a strip-shaped groove or a strip-shaped hole.
5. The rotating mechanism according to claim 4, further comprising a first auxiliary swing arm and a second auxiliary swing arm, wherein the first auxiliary swing arm is adapted to the first swing arm, and when the first swing arm rotates relative to the first rotating shaft, the first auxiliary swing arm rotates relative to the first rotating shaft and slides relative to the first swing arm in a direction away from or close to the first rotating shaft;
the second auxiliary swing arm is matched with the second swing arm, and when the second swing arm rotates relative to the second rotating shaft, the second auxiliary swing arm rotates relative to the second rotating shaft and slides relative to the second swing arm in the direction away from or close to the second rotating shaft.
6. The rotating mechanism according to claim 5, wherein the first swing arm includes a first mating surface, the openings of the first hollows are all located on the first mating surface, and the first auxiliary swing arm includes a second mating surface in contact with the first mating surface;
the first auxiliary swing arm is provided with a plurality of sliding blocks, each sliding block is connected to the second matching surface and extends along the first direction, the sliding blocks are arranged at intervals along the second direction, and each sliding block is located in one first hollow-out portion;
when the first auxiliary swing arm slides relative to the first swing arm, each sliding block slides relative to the first swing arm in one first hollow-out part.
7. The rotating mechanism according to claim 6, wherein the widths of the first hollowed-out portions are uniform along the direction of the depression of the first hollowed-out portions; the width of the slider is uniform along the protruding direction of the slider.
8. The rotating mechanism according to claim 6, wherein the width of the first hollowed-out portion gradually decreases in a direction of the depression of the first hollowed-out portion; the width of the slider is gradually reduced along the protruding direction of the slider.
9. The rotating mechanism according to claim 6, wherein the width of the first hollowed-out portion gradually increases along the direction of the depression of the first hollowed-out portion; along the protruding direction of the slider, the width of the slider gradually increases.
10. The rotating mechanism according to any one of claims 1, 2 and 5 to 9, wherein there are two first swing arms, and both of the two first swing arms are sleeved on the first rotating shaft and arranged at intervals along the axial direction of the first rotating shaft;
the number of the second swing arms is two, and the two second swing arms are sleeved on the second rotating shaft and are arranged at intervals along the axial direction of the second rotating shaft.
11. The rotating mechanism according to claim 3, wherein there are two first swing arms, and both of the two first swing arms are sleeved on the first rotating shaft and are arranged at intervals along the axial direction of the first rotating shaft;
the two second swing arms are sleeved on the second rotating shaft and are arranged at intervals along the axial direction of the second rotating shaft.
12. The rotating mechanism according to claim 4, wherein there are two first swing arms, and both of the two first swing arms are sleeved on the first rotating shaft and are arranged at intervals along the axial direction of the first rotating shaft;
the number of the second swing arms is two, and the two second swing arms are sleeved on the second rotating shaft and are arranged at intervals along the axial direction of the second rotating shaft.
13. A rotary mechanism as claimed in any one of claims 1, 2, 5 to 9, 11 and 12, further comprising a first damping member and a second damping member, the first damping member being fitted around the first rotary shaft and the second damping member being fitted around the second rotary shaft.
14. The rotating mechanism according to claim 3, further comprising a first damping member and a second damping member, wherein the first damping member is sleeved on the first rotating shaft, and the second damping member is sleeved on the second rotating shaft.
15. The rotating mechanism according to claim 4, further comprising a first damping member and a second damping member, wherein the first damping member is fitted around the first rotating shaft and the second damping member is fitted around the second rotating shaft.
16. The rotary mechanism of claim 10 further comprising a first damping member disposed about the first axis of rotation and a second damping member disposed about the second axis of rotation.
17. The rotating mechanism according to any one of claims 1, 2, 5 to 9, 11, 12, 14 to 16, further comprising a transmission member connected between the first rotating shaft and the second rotating shaft.
18. A rotary mechanism according to claim 3 further comprising a transmission member connected between the first and second rotary shafts.
19. The rotating mechanism of claim 4 further comprising a transmission member coupled between the first rotating shaft and the second rotating shaft.
20. The rotating mechanism of claim 10 further comprising a transmission member coupled between the first rotating shaft and the second rotating shaft.
21. The rotating mechanism of claim 13 further comprising a transmission member coupled between the first rotating shaft and the second rotating shaft.
22. A foldable terminal, characterized in that it comprises a first housing, a second housing and a turning mechanism according to any of claims 1 to 21, said turning mechanism being connected between said first housing and said second housing.
23. The foldable terminal according to claim 22, further comprising a display screen including a first display portion, a second display portion, and a foldable portion connected between the first display portion and the second display portion, wherein the first display portion is mounted to the first housing, the second display portion is mounted to the second housing, and the foldable portion is disposed opposite to the rotating mechanism.
CN202122118427.XU 2021-09-02 2021-09-02 Rotating mechanism and foldable terminal Active CN217682776U (en)

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CN202122118427.XU CN217682776U (en) 2021-09-02 2021-09-02 Rotating mechanism and foldable terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122118427.XU CN217682776U (en) 2021-09-02 2021-09-02 Rotating mechanism and foldable terminal

Publications (1)

Publication Number Publication Date
CN217682776U true CN217682776U (en) 2022-10-28

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