WO2023138208A1 - 多段式柔性转轴组件和电子设备 - Google Patents

多段式柔性转轴组件和电子设备 Download PDF

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Publication number
WO2023138208A1
WO2023138208A1 PCT/CN2022/133986 CN2022133986W WO2023138208A1 WO 2023138208 A1 WO2023138208 A1 WO 2023138208A1 CN 2022133986 W CN2022133986 W CN 2022133986W WO 2023138208 A1 WO2023138208 A1 WO 2023138208A1
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WO
WIPO (PCT)
Prior art keywords
sub
shaft assembly
flexible
flexible shaft
connecting rod
Prior art date
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PCT/CN2022/133986
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English (en)
French (fr)
Inventor
韩高杰
Original Assignee
湖北星纪魅族科技有限公司
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Publication of WO2023138208A1 publication Critical patent/WO2023138208A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0176—Head mounted characterised by mechanical features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B27/0172—Head mounted characterised by optical features
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/017—Head mounted
    • G02B2027/0178—Eyeglass type

Definitions

  • the present disclosure relates to the field of electronic equipment, in particular, to a multi-segment flexible shaft assembly and electronic equipment.
  • a multi-segment flexible shaft assembly is arranged between a first body and a second body of an electronic device and is connected to the first body and the second body so that the first body and the second body can rotate relatively, wherein the multi-segment flexible shaft assembly includes:
  • a flexible bracket for connecting the first body and the second body
  • the connecting rods cooperate with each other and form stroke limits for relative movement.
  • the connecting rod has a connecting rod opening and is sleeved on the end of the rotating shaft through the connecting rod opening, the rotating shaft includes an abutting portion, and the connecting rod abuts against the abutting portion.
  • the connecting rod includes a first sub-connection piece and a second sub-connection piece connected to each other, and the first sub-connection piece and the second sub-connection piece are respectively sleeved on the ends of two adjacent rotating shafts.
  • the connecting rod further includes a transition portion between the first sub-connection piece and the second sub-connection piece, and the transition portion bridges the height difference between the first sub-connection piece and the second sub-connection piece in the thickness direction.
  • the second sub-connection piece includes a first direction stop portion and a second direction stopper portion spaced apart from each other on its first end side facing the first sub-connection piece, and includes a matching protrusion on its second end side away from the first sub-connection piece, and the matching protrusion can be stopped by the first direction stop portion and the second direction stop portion of the adjacent second sub-connection piece.
  • the first sub-connecting piece and the second sub-connecting piece are arranged in an offset direction in the thickness direction, and the first sub-connecting piece of one of the adjacent two connecting rods and the second sub-connecting piece of the other connecting rod are arranged in a stacked manner at the end of the rotating shaft.
  • the connecting rod includes two first sub-connecting pieces and two second sub-connecting pieces, wherein the first direction stopper and the second direction stopper are arranged between the two first sub-connecting pieces, and the matching protrusion is arranged on one of the second sub-connecting pieces.
  • the first direction stopper is located in the middle on the first end side
  • the fitting protrusion is located in the middle on the second end side
  • the second direction stopper is located at a corner on the first end side
  • the rotating shaft includes a hollow structure, and the connecting cables of the first body and the second body pass through the hollow structure.
  • the flexible bracket includes a limiting slot for guiding a connecting cable passing through the first body and the second body.
  • the multi-section flexible shaft assembly includes a torque adjustment screw, the shaft includes a shaft opening, and the torque adjustment screw is inserted into the shaft opening and abuts against the connecting rod.
  • the cross-section of the flexible bracket when the multi-section flexible shaft assembly does not rotate, is rectangular, and the flexible bracket includes a connecting position at a position connecting the first body and the second body.
  • An electronic device includes a first body and a second body, and further includes any one of the above-mentioned multi-section flexible shaft assemblies, the multi-section flexible shaft assembly connects the first body and the second body so that the first body and the second body can rotate relative to each other.
  • the electronic device is smart glasses
  • the first body includes a frame of the smart glasses
  • the second body includes temples of the smart glasses
  • the first body and the second body include two parts of the temples.
  • the electronic device includes a display module, a first display panel of the display module is located on the first body, and a second display panel of the display module is located on the second body.
  • the electronic device includes a flexible display, the first non-bending portion of the flexible display is located on the first body, the second non-bending portion of the flexible display is located on the second body, the bending portion of the flexible display corresponds to the multi-section flexible shaft assembly, and the bending portion is deformed during the relative rotation of the first body and the second body.
  • the structural scheme of the stop point of the multi-stage rotating shaft scheme controls the rotation angle of each rotating node to achieve the rotation angle of the entire rotating shaft, avoids the problem of too small local rotation radius, and can realize multi-angle hovering;
  • the design of the shaft design The structural scheme of the cable channel adopts a hollow type design, which provides a layout space for the internal signal line.
  • Fig. 1 shows a perspective view of a multi-segment flexible shaft assembly according to an embodiment of the present disclosure
  • Fig. 2 shows a perspective view of a connecting rod of a multi-segment flexible shaft assembly according to an embodiment of the present disclosure
  • Fig. 3 shows a side view of a connecting rod of a multi-section flexible shaft assembly according to an embodiment of the present disclosure
  • Fig. 4 shows a working state diagram of a multi-segment flexible shaft assembly at a positive limit position according to an embodiment of the present disclosure
  • Fig. 5 shows a diagram of a working state of a multi-segment flexible shaft assembly at a reverse limit position according to an embodiment of the present disclosure
  • Fig. 6 shows a design schematic diagram of a torque adjusting screw of a multi-section flexible shaft assembly according to an embodiment of the present disclosure
  • Fig. 7 shows a schematic diagram of a shell of a multi-segment flexible shaft assembly according to an embodiment of the present disclosure
  • Fig. 8 shows a schematic diagram of smart glasses according to an embodiment of the present disclosure
  • FIG. 9 shows a schematic diagram of a smart glasses with the left temple closed by 30° according to an embodiment of the present disclosure
  • Fig. 10 shows a schematic diagram of a smart glasses with the left temple closed by 60° according to an embodiment of the present disclosure.
  • Fig. 11 shows a schematic diagram of a smart glasses with the left temple closed by 90° according to an embodiment of the present disclosure.
  • Smart glasses are a type of wearable smart products, including but not limited to AR (Augmented Reality Augmented Reality), MR (Mixed Reality Mixed Reality), VR (Virtual Reality Virtual Reality), CR (Cinematic Reality Extended Reality) and other XR (Extended Reality Extended Reality) product forms, from virtual worlds input through limited sensors to fully immersive virtual worlds.
  • Cables for data, signal or electrical transmission are arranged inside the smart glasses, and the cables usually extend from the temples to the display device of the frame.
  • Smart glasses, especially AR smart glasses, are designed to meet the daily wearing needs of users.
  • the temples will frequently open and close relative to the frame, which has high requirements on the service life of the shaft connecting the two.
  • the rotating shaft of the glasses is usually designed for two states of opening and closing, and the radius of rotation is small, which will cause the flexible circuit board at the position of the rotating shaft to be bent repeatedly and prone to breakage.
  • foldable mobile phones Similar to smart glasses, foldable mobile phones have also ushered in explosive development in the past two years, and various foldable mobile phone forms such as splitting, folding left and right, folding up and down, internal folding, and external folding have appeared. Regardless of the design of inward folding or outward folding, there will be problems with the creases becoming more and more obvious after repeated bending of the mobile phone screen, as well as the risk of broken and cracked screens caused by small bending radii. The components inside the screen and the CPI film or UTG glass on the screen are also at risk of bending damage.
  • FIG. 1 a perspective view of a multi-segment flexible shaft assembly according to an embodiment of the present disclosure is shown.
  • the multi-segment flexible shaft assembly 100 is arranged between the first body and the second body of the electronic device and connects the first body and the second body so that the first body and the second body can rotate relatively.
  • the multi-segment flexible shaft assembly 100 includes:
  • connecting rods 3 cooperate with each other and form stroke limits for relative movement.
  • flexibility refers to bendability or rotatability, having a certain degree of softness and flexibility.
  • the flexible bracket 1 is used to support the displacement of the rotating shaft 2 relative to each other, so that the assembly as a whole realizes the rotation or bending effect, and the connecting rod 3 realizes the limitation of the bending angle by cooperating with each other.
  • This limitation can cover both the forward direction (for example, for smart glasses, the direction in which the mirror legs are folded inward, that is, the direction where the end of the mirror leg away from the frame is close to the frame; for example, for a foldable mobile phone, the entire machine is folded inward, that is, the display side of the inner screen is opposite to the direction)
  • Angle limit also covers the reverse direction Direction (for example, for smart glasses, the direction in which the temples are folded outward, that is, the end of the temple away from the frame moves away from the frame; for example, for a foldable mobile phone, the whole machine is folded outward, that is, the display side of the inner screen is in the back-to-back direction).
  • the flexible support 1 can be made of flexible materials, such as TPU (Thermoplastic polyurethanes), silica gel, POM (polyformaldehyde) and the like.
  • TPU Thermoplastic polyurethanes
  • silica gel silica gel
  • POM polyformaldehyde
  • At least three rotating shafts 2 form at least two bending nodes, that is to say, at least two-stage turning process is formed.
  • the mirror legs when the mirror legs are folded, the mirror legs have only a 90-degree bend angle relative to the smart glasses main body (frame), the turning radius is small, and the internal cables may be excessively bent.
  • the two-segment division of the 90-degree turning angle is realized in the case of two bending nodes, for example, each takes a 45-degree turn, and the corner radius increases, so the turning range is doubled, and the risk of excessive bending of the internal signal line is also doubled accordingly, avoiding the risk that the internal cable is damaged after multiple turns due to the small turning radius of the rotating shaft when the mirror legs are closed, resulting in abnormal function of the entire smart glasses.
  • the risk of bending damage to the flexible circuit board of the smart glasses is avoided, and the service life of the smart glasses is increased.
  • the multi-segment flexible hinge assembly 100 provided by the embodiment of the present disclosure can increase the corner radius of the foldable mobile phone on the left, right, and up and down of the screen, and reduce the turning range, so even if it is repeatedly folded and used, the crease will not become obvious, and the possible risk of broken screen or cracked screen can be avoided or greatly reduced.
  • the bending force of the components in the screen and the CPI film or UTG glass on the screen is also reduced.
  • more segments of turning angle distribution can be provided to achieve precise control of turning angles.
  • the multi-segment flexible shaft assembly 100 provided by the embodiments of the present disclosure can be applied to various foldable electronic devices.
  • such electronic devices may include at least one set of first and second bodies that need to achieve relative rotation (folding).
  • the multi-segment flexible shaft assembly 100 connects the first body and the second body so that the first body and the second body can rotate relatively.
  • a foldable electronic device is a broad concept, which not only includes the case where the main body of the entire device is foldable (such as a foldable mobile phone), but also includes the case where the parts of the device are foldable (such as the temples of smart glasses).
  • the connecting rod 3 has a connecting rod opening 34 and is sleeved on the end of the rotating shaft 2 through the connecting rod opening 34 .
  • the rotating shaft 2 includes an abutting portion 21 , and the connecting rod 3 abuts against the abutting portion 21 .
  • the rotating shaft 2 can be designed as a cylinder, and the abutting portion 21 can be designed as a radially widened flange on the outer peripheral surface of the cylinder. It should be understood that the cylinder shape described above is only illustrative, and other feasible shapes are also applicable.
  • FIG. 2 to FIG. 5 there are shown a perspective view, a side view, and working state diagrams of the multi-section flexible shaft assembly in forward and reverse limit positions, respectively, of the connecting rod of the multi-section flexible shaft assembly according to some embodiments of the present disclosure.
  • the connecting rod 3 includes a first sub-connection piece 31 and a second sub-connection piece 33 connected to each other, and the first sub-connection piece 31 and the second sub-connection piece 33 are respectively sleeved on the ends of two adjacent rotating shafts 2 .
  • This design method ensures the structural stability and rotational stability of adjacent rotating shafts.
  • Fig. 4 is an example with 5 rotating shafts 2.
  • the first sub-connecting piece 31 and the second sub-connecting piece 33 are configured on the basis of a rectangle, and one side of the longitudinal side is modified into an arc-shaped paddle plate.
  • the arc radian of the connecting rod opening 34 can be the same as the aforementioned arc-shaped arc, so as to adapt to the turning action of the assembly.
  • the first sub-connection piece 31 and the second sub-connection piece 33 may have a height difference in the thickness direction, that is, they are arranged in a misaligned position.
  • the design of this height difference facilitates that each connecting rod 3 can be assembled on the end of the same rotating shaft 2 in a nested manner.
  • the second sub-connecting piece 33 of each two adjacent connecting rods on the opposite left side and the first sub-connecting piece 31 on the opposite right side of each two adjacent connecting rods are stacked in the above-mentioned manner, and the range of turning motion is limited by the interaction of these two sub-connecting pieces.
  • This stacking design also has the technical effect of saving space and keeping the entire assembly compact, especially the width of the entire assembly will not change due to changes in the number of rotating shafts 2 and connecting rods 3 .
  • the connecting rod 3 further includes a transition portion 32 between the first sub-connection piece 31 and the second sub-connection piece 33, and the transition portion 32 bridges the height difference between the first sub-connection piece 31 and the second sub-connection piece 33 in the thickness direction.
  • first sub-connection piece 31 is configured to be higher than the second sub-connection piece 33 in the thickness direction, but it should be understood that a reversely designed connecting rod can be used on the opposite end of the rotating shaft to achieve the same technical effect, that is, the first sub-connection piece 31 is configured to be lower than the second sub-connection piece 33 in the thickness direction.
  • the second sub-connection piece 33 includes a first direction stop portion 331 and a second direction stopper portion 332 on its first end side facing the first sub-connection piece 31 , and a matching protrusion 333 on its second end side away from the first sub-connection piece 31 .
  • first direction and the second direction are two turning directions different from each other, for example, the first direction may be a forward direction, and the second direction may be a reverse direction.
  • the movement of the matching protrusion 333 is limited between the first direction stopper 331 and the second direction stopper 332 , and the turning range limitation in these two directions is realized.
  • first direction stopper 331 and the second direction stopper 332 determine the forward and reverse limit points, and the distance between the first direction stopper 331 and the second direction stopper 332 determines the magnitude of the turn.
  • the first direction stopper 331 is located in the middle on the first end side
  • the fitting protrusion 333 is located in the middle on the second end side
  • the second direction stopper 332 is located at a corner on the first end side.
  • the arrangement positions of the first direction stopper 331, the second direction stopper 332 and the matching protrusion 333, as well as the number of rotating shafts and connecting rods can be adjusted according to actual needs (for example, how many angles each rotation node needs to rotate, what rotation angle the entire assembly needs to be able to achieve, and which limit position is the maximum forward and reverse rotation angle expected to be in) to be adjusted to adapt to different operating conditions.
  • the maximum forward bending angle can be designed to be 90 degrees, a single rotation node can achieve a maximum rotation range of 30 degrees, and the reverse maximum bending angle is specified as 0 degrees, that is, it is not allowed to rotate the temples outwards that do not meet the practical application.
  • the connecting rod 3 includes two first sub-connecting pieces 31 and two second sub-connecting pieces 33 , wherein the first direction stop portion 331 and the second direction stopper portion 332 are arranged between the two first sub-connecting pieces 31 , and the matching protrusion 333 is arranged on one of the second sub-connecting pieces 33 .
  • the connecting rod 3 is configured as a double-layer structure.
  • the benefits of this double-layer structure include providing protection for the first direction stopper 331 and the second direction stopper 332 from being affected by the external environment, having stronger structural stability and supporting strength, and can be directly applied on the opposite end sides of the rotating shaft, which has good versatility.
  • one of the second sub-connecting pieces 33 including the matching protrusion 333 is located between the two first sub-connecting pieces 31 , so the matching protrusion 333 can also be protected due to the double-layer design. It should be understood that the structural design of more layers is also feasible, and the specific design scheme can be extended with reference to the above two-layer structure.
  • the connecting rod 3 further includes a support portion 35 configured on the bottom side of the connecting rod 3 and abutting against the first sub-connecting piece 31 located relatively below, so as to enhance the supporting strength of the entire connecting rod 3 .
  • the supporting portion 35 is also aligned with the second sub-connecting piece 33 located relatively below, so as to enhance the supporting strength without increasing the thickness of the entire connecting rod 3 .
  • reinforcement methods are described above as examples, this is not limiting, and other common reinforcement methods, such as reinforcement ribs, reinforcement ribs, reinforcement brackets, reinforcement grooves, etc., are also applicable.
  • the rotating shaft 2 includes a hollow structure 22 for cables of electronic equipment, such as signal lines, power lines, data lines, connection lines, etc. to pass through.
  • the flexible support 1 further includes a limiting slot for guiding cables of electronic equipment, such as signal lines, power lines, data lines, connection lines, and the like.
  • the hollow structure and/or the limiting groove can provide accommodating space for the internal cables of the electronic equipment, avoiding the exposure of the internal cables and facilitating wiring.
  • the limiting groove can be configured as a plurality of grooves equally spaced from each other, and is configured on the upper surface of the flexible support 1.
  • the design of the groove additionally provides a limiting function for the internal cables of the electronic device, preventing the cables from being displaced or even knotted during the folding process.
  • the shape, quantity and size of the limiting slots can be adjusted according to the specifications of the internal cables.
  • the multi-section flexible shaft assembly 100 may further include a torque adjustment screw 4 , the shaft 2 includes a shaft opening, and the torque adjustment screw 4 is inserted into the shaft opening and abuts against the connecting rod 3 . Since the connecting rod 3 also abuts against the abutting portion 21 , the torque adjusting screw 4 exerts elastic force on the connecting rod 3 . By adjusting, for example, turning the torque adjusting screw 4 to make it shift in the longitudinal direction of the rotating shaft 2 in the rotating shaft 2 , the elastic force on the connecting rod 3 changes accordingly, and the tightness adjustment is realized.
  • the elastic force determines the difficulty of turning the whole assembly and the temple and the stability of the structure after the turning is completed. Therefore, for example, when the bending angle of the mirror leg needs to be adjusted, the screw can be loosened for bending, and when the bending angle is adjusted, the screw can be tightened for shaping; the screw can also be screwed to a certain amount, so that a certain degree of structural shaping can be guaranteed, and the resistance is not too large when the mirror leg needs to be bent.
  • the shaft opening is configured as a threaded hole to better cooperate with the torque adjusting screw 4 .
  • the torque adjusting screw 4 may only be assigned to the rotating shaft 2 belonging to the rotating node, and the rotating shafts at both ends may not need to be assigned to the rotating shaft 2 .
  • the cross section of the flexible bracket 1 is rectangular, and the position connecting the first body and the second body includes a connecting position.
  • the connection position includes fixing holes 11 at the edges (for example, four corners) of the flexible support 1 .
  • the fixing hole 11 different main bodies of the electronic device can be fixedly connected with the multi-section flexible shaft assembly.
  • the “rectangle” here does not require a strict rectangle in the mathematical sense, but only needs to be roughly rectangular in shape, so local design of corresponding deformations, such as chamfering, rounding, recesses, protrusions, etc., are allowed, all of which fall within the protection scope of the present disclosure.
  • the entire assembly is fixed to different bodies of the electronic device through the fixing hole 11 , such as the temple and the frame of the smart glasses.
  • connection position is described above as an example, this is not limiting, and other structural implementations, such as bonding, snapping, welding, etc., are also applicable. Likewise, the size, shape, quantity and arrangement position of the connection positions can be adjusted according to the corresponding parts of the electronic equipment to be installed.
  • Embodiments of the present disclosure also provide an electronic device, including a first body and a second body.
  • the multi-section flexible shaft assembly 100 of any one of the above embodiments connects the first body and the second body so that the first body and the second body can rotate relative to each other.
  • the electronic device 200 can be smart glasses, the first body includes two mirror legs 201, the second body includes the main body part (frame) 202 of the smart glasses, and the multi-segment flexible shaft assembly 100 provided by any of the above-mentioned embodiments, or the first body and the second body are two parts of the mirror legs, that is, this assembly is used for the relative rotation of the mirror legs themselves.
  • binocular smart glasses are shown in the figure, it should be understood that the connection between the temples of the monocular smart glasses and the frame can also be applied to the multi-segment flexible shaft assembly provided by the embodiment of the present disclosure; or any temple in the binocular smart glasses is suitable for the multi-segment flexible shaft assembly provided by the embodiment of the present disclosure. That is to say, the first body and the second body described in the present disclosure do not necessarily mean that the two bodies belong to two different parts of the electronic device, but may belong to two parts of the same part, for example, two parts of the temples of smart glasses. Therefore, the multi-segment flexible shaft assembly provided by the embodiment of the present disclosure can be fixed to any temple of the smart glasses.
  • the multi-segment flexible shaft assembly 100 may include a housing 5.
  • the shell 5 can be made of flexible materials such as POM, TPU or silicone, which will not affect the rotation effect of the components while having good durability and aesthetics.
  • FIG. 8 to FIG. 11 schematic diagrams are shown in which the left temple of smart glasses according to an embodiment of the present disclosure is closed by 30°, 60° and 90° respectively.
  • angles are only exemplary, and can be modified according to actual needs.
  • the turning angles that can be realized by each turning node and the entire assembly can be changed by changing the number of rotating shafts and connecting rods, and the arrangement position design of the first direction stopper, the second direction stopper and the matching protrusion.
  • the electronic device is a foldable mobile phone, a tablet computer or similar products, and the electronic device includes a display module, the first display panel of the display module is located on the first body, and the second display panel of the display module is located on the second body.
  • the multi-section flexible shaft assembly is respectively fixed to the rear casings of the first body and the second body (ie, the casing away from the display panel).
  • the electronic device may be a foldable dual-screen mobile phone, including two separate, non-continuous display panels to form a display module, and the connection between the two display panels adopts the multi-section flexible shaft assembly provided by any of the above-mentioned embodiments, the shaft of the multi-section flexible shaft assembly extends longitudinally along the display panel, and the flexible bracket extends laterally along the display panel.
  • the electronic device is a foldable mobile phone, a tablet computer or similar products
  • the electronic device includes a flexible display screen
  • the first non-bending portion of the flexible display screen is located on the first body
  • the second non-bending portion of the flexible display screen is located on the second body
  • the bending portion of the flexible display screen corresponds to the multi-section flexible shaft assembly
  • the bending portion deforms during the relative rotation of the first body and the second body.
  • the multi-section flexible shaft assembly is respectively fixed to the rear casings of the first body and the second body (ie, the casing away from the display panel), and is covered by the display panel of the bending part.
  • the display module included in this type of electronic device is a complete and continuous display panel.
  • the display panel includes non-bending parts on both sides as the main display area and a bending part between the non-bending parts.
  • the bending part covers a multi-segment flexible shaft assembly.
  • the multi-segment flexible shaft assembly 100 can also be installed on a foldable mobile phone in the manner described above, specifically assembled on the shell of the foldable mobile phone, and can achieve corresponding characteristics and technical effects.
  • each shaft 2 of the multi-section flexible shaft assembly 100 is parallel to the short side of the foldable mobile phone and is arranged in the central area relative to its long side when the mobile phone is unfolded, thereby giving the foldable mobile phone the function of folding up and down. In some other embodiments, each shaft 2 of the multi-section flexible shaft assembly 100 is parallel to the long side of the foldable mobile phone and is arranged in the central area relative to its short side when the mobile phone is unfolded, thereby giving the foldable mobile phone the function of folding left and right.
  • the method of split-screen folding is described above by way of example, this is not limiting, and other folding methods, such as changes in the arrangement position and angle of the component relative to the screen of the mobile phone, are also applicable.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Telephone Set Structure (AREA)

Abstract

一种多段式柔性转轴组件（100），设置于电子设备的第一主体和第二主体之间，使得第一主体和第二主体可相对转动，多段式柔性转轴组件（100）包括：柔性支架（1），用于连接第一主体和第二主体；至少三个转轴（2），其在柔性支架（1）上依次布置，转轴（2）包括镂空结构（22），第一主体和第二主体的连接线缆穿过镂空结构（22）；连杆（3），布置在转轴（2）的端部并形成彼此相对运动的行程限制。转轴组件（100）能够防止穿过其中的连接线缆过度弯折，延长连接线缆的使用寿命。

Description

多段式柔性转轴组件和电子设备 技术领域
本公开涉及电子设备领域，具体而言，涉及一种多段式柔性转轴组件和电子设备。
背景技术
智能眼镜产品，如AR/VR/XR智能眼镜，越来越多的产品线开始从工业领域转向商用、民用领域，眼镜的外形设计也更趋向于潮流化，眼镜体积就需要更加小巧，眼镜主体(镜框)和镜腿的连接信号线需要使用软性线路板。
发明内容
根据本公开的一方面，提供了：
一种多段式柔性转轴组件，设置于电子设备的第一主体和第二主体之间并连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动，其中，所述多段式柔性转轴组件包括：
柔性支架，用于连接所述第一主体和第二主体；
至少三个转轴，其在所述柔性支架上依次布置；以及
连杆，其布置于所述转轴的端部，
其中，所述连杆彼此配合作用并形成彼此相对运动的行程限制。
可选地，根据本公开的一种实施方式，所述连杆具有连杆开孔并且以所述连杆开孔套装于所述转轴的端部，所述转轴包括抵接部，所述连杆抵接于所述抵接部。
可选地，根据本公开的一种实施方式，所述连杆包括彼此连接的第一子连接片以及第二子连接片，所述第一子连接片和所述第二子连接片分别套装于相邻两个转轴的端部。
可选地，根据本公开的一种实施方式，所述连杆还包括位于所述第一子连接片和所述第二子连接片之间的过渡部，由所述过渡部进行所述第一子连接片和所述第二子连接片厚度方向上的高度差的桥接。
可选地，根据本公开的一种实施方式，所述第二子连接片在其朝向所述第一子连接片的第一端侧上包括彼此间隔开构造的第一方向止挡部和第二方向止挡部，并且在其背离所述第一子连接片的第二端侧上包括配合凸出部，所述配 合凸出部能够被止挡于相邻的第二子连接片的第一方向止挡部和第二方向止挡部。
可选地，根据本公开的一种实施方式，所述第一子连接片和所述第二子连接片在厚度方向上错位布置，并且相邻两连杆之一的第一子连接片和另一个连杆的第二子连接片以堆叠的方式布置于所述转轴的端部。
可选地，根据本公开的一种实施方式，所述连杆包括两个第一子连接片和两个第二子连接片，其中，所述第一方向止挡部和所述第二方向止挡部布置于所述两个第一子连接片之间，所述配合凸出部布置于其中一个第二子连接片上。
可选地，根据本公开的一种实施方式，所述第一方向止挡部在所述第一端侧上位于中间，所述配合凸出部在所述第二端侧上位于中间，并且所述第二方向止挡部在所述第一端侧上位于边角处。
可选地，根据本公开的一种实施方式，所述转轴包括镂空结构，所述第一主体和第二主体的连接线缆通过所述镂空结构。
可选地，根据本公开的一种实施方式，所述柔性支架包括限位槽，用于引导通过所述第一主体和第二主体的连接线缆。
可选地，根据本公开的一种实施方式，所述多段式柔性转轴组件包括扭力调节螺丝，所述转轴包括转轴开孔，所述扭力调节螺丝插入到所述转轴开孔中并且抵靠所述连杆。
可选地，根据本公开的一种实施方式，在所述多段式柔性转轴组件没有转动的情况下，所述柔性支架的横截面呈现为矩形，并且所述柔性支架在连接所述第一主体和第二主体的位置包括连接位。
根据本公开的另一方面，提供了：
一种电子设备，包括第一主体和第二主体，其中，还包括上述任一种多段式柔性转轴组件，所述多段式柔性转轴组件连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动。
可选地，根据本公开的一种实施方式，所述电子设备为智能眼镜，所述第一主体包括所述智能眼镜的镜框，所述第二主体包括所述智能眼镜的镜腿，或者所述第一主体和所述第二主体包括所述镜腿的两个部分。
可选地，根据本公开的一种实施方式，所述电子设备包括显示模组，所 述显示模组的第一显示面板位于所述第一主体，所述显示模组的第二显示面板位于所述第二主体。
可选地，根据本公开的一种实施方式，所述电子设备包括柔性显示屏，所述柔性显示屏的第一非折弯部位于所述第一主体，所述柔性显示屏的第二非折弯部位于所述第二主体，所述柔性显示屏的折弯部对应所述多段式柔性转轴组件，在所述第一主体与所述第二主体相对转动过程中，所述折弯部发生形变。
本公开实施例所提供的多段式柔性转轴组件和电子设备，至少部分地实现了下述技术进步中的一个或多个：
1.包含2个及2个以上的转动节点结构方案，增大了转动半径，避免了内部信号线因折弯角度过小而产生损伤的风险；
2.能够避免手机屏幕因折弯角度过小而产生裂屏、碎屏、折痕显著的风险；
3.多段式转轴方案的止挡点的结构方案，控制每个转动节点的转动角度来达到整个转轴的转动角度，避免局部转动半径过小的问题，能够实现多角度悬停；
4.转轴设计过线通道结构方案，采用中空式等设计，为内部信号线提供了布置空间。
附图说明
参考附图，本公开的上述以及其它的特征将变得显而易见，其中，
图1示出了根据本公开实施例的一种多段式柔性转轴组件的立体图；
图2示出了根据本公开实施例的一种多段式柔性转轴组件的连杆的立体图；
图3示出了根据本公开实施例的一种多段式柔性转轴组件的连杆的侧视图；
图4示出了根据本公开实施例的一种多段式柔性转轴组件在正向极限位置的工作状态图；
图5示出了根据本公开实施例的一种多段式柔性转轴组件在反向极限位置的工作状态图；
图6示出了根据本公开实施例的一种多段式柔性转轴组件的扭力调节螺丝的设计示意图；
图7示出了根据本公开实施例的一种多段式柔性转轴组件的外壳示意图；
图8示出了根据本公开实施例的一种智能眼镜示意图；
图9示出了根据本公开实施例的一种智能眼镜的左镜腿闭合30°的示意图；
图10示出了根据本公开实施例的一种智能眼镜的左镜腿闭合60°的示意图；以及
图11示出了根据本公开实施例的一种智能眼镜的左镜腿闭合90°的示意图。
具体实施方式
容易理解，根据本公开的技术方案，在不变更本公开实质精神下，本领域的一般技术人员可以提出可相互替换的多种结构方式以及实现方式。因此，以下具体实施方式以及附图仅是对本公开的技术方案的示例性说明，而不应当视为本公开的全部或者视为对本公开技术方案的限定或限制。
在本说明书中提到或者可能提到的上、下、左、右、前、后、正面、背面、顶部、底部等方位用语是相对于各附图中所示的构造进行定义的，它们是相对的概念，因此有可能会根据其所处不同位置、不同使用状态而进行相应地变化。所以，也不应当将这些或者其他的方位用语解释为限制性用语。此外，术语“第一”、“第二”、“第三”等或类似表述仅用于描述与区分目的，而不能理解为指示或暗示相应的构件的相对重要性。
随着近眼显示技术及穿戴设备的发展，基于新型3D人机交互理念的智能可穿戴电子产品逐渐进入消费市场。智能眼镜(Smart Glass)是可穿戴智能产品的一种，包括但不限于AR(Augmented Reality增强现实)、MR(Mixed Reality混合现实)、VR(Virtual Reality虚拟现实)、CR(Cinematic Reality扩展现实)等XR(Extended Reality扩展现实)产品形态，从通过有限传感器输入的虚拟世界到完全沉浸式的虚拟世界。
在智能眼镜的内部布置有用于数据、信号或电传输的线缆，线缆通常从镜腿延至镜框的显示器件。智能眼镜，尤其是AR智能眼镜，是适应用户日常佩戴需求设计的，镜腿会相对镜框频繁打开和关闭，对连接二者的转轴的使用寿命具有很高的要求。
在发明人所知的智能眼镜产品中，眼镜转轴通常是为打开和关闭两种状态设计的，转动半径较小，会导致转轴位置的软性线路板反复折弯易于发生断裂问题。
与智能眼镜类似，可折叠手机在过去两年也迎来了爆发式的发展，出现了对开、左右折叠、上下折叠、内折叠、外折叠等各种可折叠手机形态。无论内 折还是外折的设计，对于手机屏幕都会有反复弯折后折痕逐渐明显的问题，以及弯折半径小所引起的碎屏、裂屏的风险。屏幕内的元器件以及屏幕上的CPI膜或UTG玻璃也有折弯损伤的风险。
参考图1，示出了根据本公开实施例的一种多段式柔性转轴组件的立体图。
多段式柔性转轴组件100，设置于电子设备的第一主体和第二主体之间并连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动，所述多段式柔性转轴组件100包括：
柔性支架1，用于连接所述第一主体和第二主体；
至少三个转轴2，其在所述柔性支架1上依次布置；以及
连杆3，其布置于所述转轴2的端部，
其中，所述连杆3彼此配合作用并形成彼此相对运动的行程限制。
应当理解，柔性是指可弯曲性或者可转动性，具有一定柔软度、柔韧性。在此例如通过柔性支架1来支持在其上的转轴2相对于彼此的移位，因此整体上本组件实现了转动或者弯曲效果，而连杆3通过与彼此的配合作用来实现弯曲角度的限制，这种限制可以既涵盖正向方向(例如，对于智能眼镜而言，镜腿向内折叠方向，即镜腿远离镜框的一端向靠近镜框的方向；例如，对于可折叠手机而言，整机向内折叠，即内屏的显示侧面对面方向)的角度限制，又涵盖反向方向(例如，对于智能眼镜而言，镜腿向外折叠方向，即镜腿远离镜框的一端向远离镜框的方向；例如，对于可折叠手机而言，整机向外折叠，即内屏的显示侧背靠背方向)的角度限制。
柔性支架1可以由柔性材料制成，柔性材料例如可以包括TPU(Thermoplastic polyurethanes)、硅胶、POM(polyformaldehyde)等。
本公开实施例提供的多段式柔性转轴组件100，至少三个转轴2形成了至少两个弯曲节点，也就是说形成了至少两段式的转弯过程。例如，相关技术中的智能眼镜，在折叠镜腿时，镜腿相对于智能眼镜主体(镜框)仅有一段90度的弯角，转动半径较小，其内部线缆可能会过度弯折。根据本公开实施例提供的多段式柔性转轴组件100，在两个弯曲节点的情况下实现了90度转角的二段式分割，例如各承担45度的转弯，转角半径增大，因此转弯幅度成倍地降低，内部信号线过度弯折的风险也随之成倍地降低，避免了内部线缆因为镜腿闭合时转轴 转角半径较小，多次转动后受损导致整个智能眼镜功能异常的风险。与此同时也避免了智能眼镜的软性线路板发生折弯损伤的风险，增加了智能眼镜的使用寿命。在转轴数量更多的情况下，能够实现更多段的转弯角度分摊效果，从而可以提供更精细的转动角度调整。同理，本公开实施例提供的多段式柔性转轴组件100，可以使可折叠手机的在屏幕左右、上下的转角半径增大，转弯幅度降低，因此即便反复折叠使用，折痕也不会变得明显，也避免或大幅度降低了可能存在的碎屏、裂屏风险。屏幕内的元器件以及屏幕上的CPI膜或UTG玻璃受到的折弯力度也得以降低。此外，通过调整转轴数量可以提供更多段的转弯角度分摊，实现转弯角度的精密控制。
本公开实施例提供的多段式柔性转轴组件100，可以应用在各种可折叠的电子设备，例如，这类电子设备可以包括至少一组需要实现相对转动(折叠)的第一主体和第二主体，多段式柔性转轴组件100连接第一主体和第二主体使所述第一主体和第二主体可相对转动。
还应当理解，可折叠的电子设备是广义的概念，其不仅包括了整个设备的主体是可折叠的情况(例如可折叠手机)，也包括了设备的零部件是可折叠的情况(例如智能眼镜的镜腿)。
在一些实施例中，所述连杆3具有连杆开孔34并且以所述连杆开孔34套装于所述转轴2的端部，所述转轴2包括抵接部21，所述连杆3抵接于所述抵接部21。
在一些实施例中，所述转轴2可设计成柱体形，所述抵接部21可设计成在柱体外周面上径向扩宽的凸缘。应当理解，上述所描述的柱体形仅为示意性的，其它可行性的形态也可适用。
参考图2至图5，示出了根据本公开一些实施例的多段式柔性转轴组件的连杆的立体图、侧视图、所述多段式柔性转轴组件分别在正向和反向极限位置的工作状态图。
在一些实施例中，所述连杆3包括彼此连接的第一子连接片31以及第二子连接片33，所述第一子连接片31和所述第二子连接片33分别套装于相邻两个转轴2的端部。这种设计方式保证了相邻转轴的结构稳定性以及转动稳定性。可以设计更多个、例如4个或5个转轴2实现更多段的转弯角度分摊，以与所述 连杆3的形状相适应，图4以5个转轴2为示例。
在一些实施例中，所述第一子连接片31和所述第二子连接片33构造成以矩形为基础，纵边一侧改型成圆弧形的拨片板状，连杆开孔34的圆弧弧度可以与前述的圆弧形弧度相同，以与组件的转弯动作相适应。
在一些实施例中，所述第一子连接片31和所述第二子连接片33在厚度方向上可以具有高度差，即错位布置。这种高低差的设计便于各个连杆3能够以叠套的方式装配于同一个转轴2的端部上，例如每两个相邻连杆的相对左侧连杆的第二子连接片33与相对右侧连杆的第一子连接片31以上述方式进行堆叠布置，并通过这两个子连接片的相互作用来实现转弯运动的幅度限制。这种堆叠设计还具有节省空间，使整个组件保持结构紧凑的技术效果，特别是整个组件的宽度不会由于转轴2和连杆3的数量变化而发生变化。
在一些实施例中，连杆3还包括位于所述第一子连接片31和所述第二子连接片33之间的过渡部32，由所述过渡部32进行所述第一子连接片31和所述第二子连接片33厚度方向上的高度差的桥接。
上述以举例方式说明了第一子连接片31构造成在厚度方向上高于第二子连接片33，但是应当理解，在转轴对侧的端部上可以采用相反设计的连杆以实现相同的技术效果，即第一子连接片31构造成在厚度方向上低于第二子连接片33。
在本公开的一些实施例中，所述第二子连接片33在其朝向所述第一子连接片31的第一端侧上包括彼此间隔开构造的第一方向止挡部331和第二方向止挡部332，并且在其背离所述第一子连接片31的第二端侧上包括配合凸出部333，所述配合凸出部333能够被止挡于相邻的第二子连接片33的第一方向止挡部331和第二方向止挡部332。
应当理解，第一方向和第二方向是彼此不同的两个转弯方向，例如第一方向可以为正向，第二方向为反向。通过上述技术方案，使得所述配合凸出部333的运动被限制在所述第一方向止挡部331与所述第二方向止挡部332之间，实现了在这两个方向上的转弯幅度限制。
还应当理解，所述第一方向止挡部331和所述第二方向止挡部332的位置决定了正向和反向的极限点，并且所述第一方向止挡部331与所述第二方向止 挡部332之间的间距决定了转弯的幅度。
在一些实施例中，所述第一方向止挡部331在所述第一端侧上位于中间，所述配合凸出部333在所述第二端侧上位于中间，并且所述第二方向止挡部332在所述第一端侧上位于边角处。这种设计方案能够从图4中清楚地看出，并且这两种止挡部也构造成凸块的形状，因此易于加工、成本低，同时能够实现所期望的限位作用。
尽管本公开没有明确描述的，所用的第一方向止挡部331、第二方向止挡部332和配合凸出部333的布置位置，以及转轴和连杆的数量可以根据实际需要(例如需要各转动节点转动多少角度，需要整个组件能够实现多大的转动角度，以及期望正、反向的最大转角处于哪个极限位置)进行调整，以适应不同的使用工况。
示例性地，以应用于智能眼镜为例，正向最大弯曲角度可以设计成90度，单个转动节点实现30度的最大转动幅度，反向最大弯曲角度规定成0度，即不允许将镜腿不符合实际应用地朝外转动。
如图2和图3示例性地示出，在一些实施例中，所述连杆3包括两个第一子连接片31和两个第二子连接片33，其中，所述第一方向止挡部331和所述第二方向止挡部332布置于所述两个第一子连接片31之间，所述配合凸出部333布置于其中一个第二子连接片33上。
根据上述设计方案，所述连杆3构造成了一种双层结构。这种双层结构的好处包括给第一方向止挡部331和第二方向止挡部332提供了保护，以免受到外界环境的影响，具有更强的结构稳固性和支撑强度，并且在转轴的对置的端侧上可以直接得到应用，具有良好的通用性。在使用过程中，其中一个包括配合凸出部333的第二子连接片33是位于所述两个第一子连接片31之间的，因此配合凸出部333也能够由于这种双层设计而得到保护。应当理解，更多层的结构设计也是可行的，具体设计方案可参考上面的双层结构进行拓展。
在一些实施例中，所述连杆3还包括支撑部35，所述支撑部35构造于所述连杆3的底侧并且抵接于处于相对下方的第一子连接片31，以便增强整个连杆3的支撑强度。
在一些实施例中，所述支撑部35还与处于相对下方的第二子连接片33 相对齐，以在增强支撑强度的同时没有增大整个连杆3的厚度。
尽管上述以举例的方式说明了加强方式，但这并不是限制性的，其它常见的加强方式，例如加强筋、加强肋、加强支架、加强槽等也可以适用。
在本公开的一些实施例中，所述转轴2包括镂空结构22，用于电子设备的线缆，例如信号线、电力线、数据线、连接线等的通过。
在本公开的一些实施例中，柔性支架1还包括限位槽，用于电子设备的线缆，例如信号线、电力线、数据线、连接线等的引导通过。
镂空结构和/或限位槽能够为电子设备的内部线缆提供容纳空间，避免了内部线缆暴露，便于布线。
例如，所述限位槽可以构造成多个彼此等间距间隔开的沟槽，构造于所述柔性支架1的上表面，沟槽的设计形式附加地为电子设备的内部线缆提供了限位功能，防止线缆在折叠过程中发生移位、甚至是打结。所述限位槽的形状、数量和尺寸可以根据内部线缆规格进行调整。
参考图6，本公开实施例提供的多段式柔性转轴组件100，还可以包括扭力调节螺丝4，所述转轴2包括转轴开孔，所述扭力调节螺丝4插入到所述转轴开孔中并且抵靠所述连杆3。由于所述连杆3还抵接于所述抵接部21，由此，所述扭力调节螺丝4给所述连杆3施加了松紧力。通过调节、例如旋拧所述扭力调节螺丝4，使其在所述转轴2内在转轴2的纵向方向上发生移位，从而到所述连杆3上的松紧力相应地产生变化，实现了松紧调节。
应当理解，松紧力决定了整个组件以及镜腿的转弯难易度和转动完成之后维持结构的稳定程度。因此，示例性地，可以在需要调节镜腿弯曲角度的时候放松螺丝以进行弯曲，在弯曲角度调节完毕的时候拧紧螺丝以进行定型；也可以将螺丝旋拧至一定的量，从而既能够保证一定的结构定型程度，也不至于在需要进行镜腿弯曲时的阻力过大。可选地，所述转轴开孔构造成螺纹孔以较好地与所述扭力调节螺丝4相互配合。
可选地，所述扭力调节螺丝4可以仅仅配属于属于转动节点的转轴2，而位于两端的转轴可不需要配属有扭力调节螺丝。
在本公开的一些实施例中，在所述多段式柔性转轴组件100没有转动的情况下，柔性支架1的横截面呈现为矩形，在连接所述第一主体和第二主体的位 置包括连接位。
根据多段式柔性转轴组件100应用的电子设备的类型，可以调整连接位的实现结构。例如，连接位包括柔性支架1边缘(例如，四角位置)的固定孔11。通过该固定孔11，可以将电子设备的不同主体与多段式柔性转轴组件固定连接。例如，固定至智能眼镜的镜腿、镜框，可折叠手机的不同显示屏的壳体。
需要说明的是，这里的“矩形”并不要求是严格的、在数学意义下的矩形，而是只要大体上呈现出矩形的形状即可，因此允许在局部设计相应的变形，例如倒角、倒圆、凹处、突起部等，这些均落入了本公开的保护范围。
通过上述技术方案，通过所述固定孔11将整个组件固定至电子设备的不同主体，例如智能眼镜的镜腿和镜框。
尽管上述以举例的方式说明了连接位的实现方式，但这并不是限制性的，其它的结构实现，例如粘结、卡合、焊接连接等方式也可以适用。同样地，连接位的尺寸、形状、数量和布置位置等特征可以根据所要安装的电子设备的相应部位进行调整。
本公开的实施例还提供了一种电子设备，包括第一主体和第二主体，前述任一实施例的多段式柔性转轴组件100连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动。
参考图7所示，该电子设备200可以是智能眼镜，第一主体包括两支镜腿201、第二主体包括智能眼镜的主体部分(镜框)202，以及上述任一实施例提供的多段式柔性转轴组件100，或者所述第一主体和所述第二主体为所述镜腿的两个部分，即本组件用于镜腿本身的相对转动。
尽管图示了双目智能眼镜，应该理解，单目智能眼镜的镜腿与镜框的连接也可适用本公开实施例提供的多段式柔性转轴组件；或双目智能眼镜中的任一只镜腿适用本公开实施例提供的多段式柔性转轴组件。也就是说，本公开所述的第一主体和第二主体并不一定意味着这两个主体要属于电子设备的两个不同的部件，而是可以属于同一个部件的两个部分，例如智能眼镜的镜腿的两个部分，因此本公开实施例提供的多段式柔性转轴组件可以固定至智能眼镜的任一只镜腿上。
为了保护多段式柔性转轴组件免受外界环境的影响，多段式柔性转轴组 件100可以包括外壳5。
例如，外壳5可以由POM、TPU或者硅胶等柔性材料制成，在具有良好的耐用性和美观的同时不会影响组件的转动效果。
参考图8至图11，示出了根据本公开实施例的智能眼镜的左镜腿分别闭合30°、60°以及90°的示意图。
应当理解，上述角度仅仅为示例性的，可以根据实际需要进行改型，例如可以通过转轴、连杆的数量变化，以及第一方向止挡部、第二方向止挡部和配合凸出部的布置位置设计来改变各个转动节点以及整个组件所能够实现的转弯角度。
在一些实施例中，电子设备为可折叠的手机、平板电脑或类似产品，该电子设备，包括显示模组，显示模组的第一显示面板位于所述第一主体，显示模组的第二显示面板位于第二主体。在该结构下，多段式柔性转轴组件分别与第一主体、第二主体的后壳(即远离显示面板方向的外壳)固定。
例如，该电子设备可以是可折叠的双屏手机，包括两块单独的、非连续的显示面板组成显示模组，在两块显示面板之间的连接部分采用上述任一实施例提供的多段式柔性转轴组件，多段式柔性转轴组件的转轴沿显示面板的纵向延伸，柔性支架沿显示面板的横向延伸。
该类电子设备的产品形态，例如可参考微软公司的surface duo系列手机。
在一些实施例中，电子设备为可折叠的手机、平板电脑或类似产品，该电子设备，包括柔性显示屏，所述柔性显示屏的第一非折弯部位于所述第一主体，所述柔性显示屏的第二非折弯部位于所述第二主体，所述柔性显示屏的折弯部对应所述多段式柔性转轴组件，在所述第一主体与所述第二主体相对转动过程中，所述折弯部发生形变。在该结构下，多段式柔性转轴组件分别与第一主体、第二主体的后壳(即远离显示面板方向的外壳)固定，且为折弯部的显示面板所覆盖。
该类电子设备包括的显示模组为一块完整的、连续的显示面板，显示面板包括两侧作为主要显示区域的非折弯部和位于非折弯部之间的折弯部，该折弯部覆盖多段式柔性转轴组件。
该类电子设备的产品形态，例如可参考三星公司的z fold(左右折叠)、z flip(上下折叠)系列手机或华为公司的mate x系列手机。
多段式柔性转轴组件100也可以通过上述介绍过的方式安装到可折叠手机上，具体装配至可折叠手机的壳体上，并且能够实现相应的特点和技术效果。
在本公开的一些实施例中，所述多段式柔性转轴组件100的各转轴2与可折叠手机的短边平行并且在手机展开的情况下相对于其长边布置在中央区域，由此为所述可折叠手机赋予了上下折叠的功能。在其它的一些实施例中，所述多段式柔性转轴组件100的各转轴2与可折叠手机的长边平行并且在手机展开的情况下相对于其短边布置在中央区域，由此为所述可折叠手机赋予了左右折叠的功能。尽管上述以举例的方式说明了分屏折叠的方式，但这并不是限制性的，其它的折叠方式，例如本组件相对于手机屏幕的布置位置、角度的变化等也是适用的。
应当理解的是，所有以上的优选实施例都是示例性而非限制性的，本领域技术人员在本公开的构思下对以上描述的具体实施例做出的各种改型或变形都应在本公开的法律保护范围内。

Claims (16)

  1. 一种多段式柔性转轴组件，设置于电子设备的第一主体和第二主体之间并连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动，其特征在于，所述多段式柔性转轴组件包括：
    柔性支架，用于连接所述第一主体和第二主体；
    至少三个转轴，其在所述柔性支架上依次布置；以及
    连杆，其布置于所述转轴的端部，
    其中，所述连杆彼此配合作用并形成彼此相对运动的行程限制。
  2. 根据权利要求1所述的多段式柔性转轴组件，其特征在于，所述连杆具有连杆开孔并且以所述连杆开孔套装于所述转轴的端部，所述转轴包括抵接部，所述连杆抵接于所述抵接部。
  3. 根据权利要求2所述的多段式柔性转轴组件，其特征在于，所述连杆包括彼此连接的第一子连接片以及第二子连接片，所述第一子连接片和所述第二子连接片分别套装于相邻两个转轴的端部。
  4. 根据权利要求3所述的多段式柔性转轴组件，其特征在于，所述连杆还包括位于所述第一子连接片和所述第二子连接片之间的过渡部，由所述过渡部进行所述第一子连接片和所述第二子连接片厚度方向上的高度差的桥接。
  5. 根据权利要求3所述的多段式柔性转轴组件，其特征在于，所述第二子连接片在其朝向所述第一子连接片的第一端侧上包括彼此间隔开构造的第一方向止挡部和第二方向止挡部，并且在其背离所述第一子连接片的第二端侧上包括配合凸出部，所述配合凸出部能够被止挡于相邻的第二子连接片的第一方向止挡部和第二方向止挡部。
  6. 根据权利要求3所述的多段式柔性转轴组件，其特征在于，所述第一子连接片和所述第二子连接片在厚度方向上错位布置，并且相邻两连杆之一的第一子连接片和另一个连杆的第二子连接片以堆叠的方式布置于所述转轴的端部。
  7. 根据权利要求5所述的多段式柔性转轴组件，其特征在于，所述连杆包括两个第一子连接片和两个第二子连接片，其中，所述第一方向止挡部和所述第二方向止挡部布置于所述两个第一子连接片之间，所述配合凸出部布置于其中一个第二子连接片上。
  8. 根据权利要求5所述的多段式柔性转轴组件，其特征在于，所述第一方向止 挡部在所述第一端侧上位于中间，所述配合凸出部在所述第二端侧上位于中间，并且所述第二方向止挡部在所述第一端侧上位于边角处。
  9. 根据权利要求1所述的多段式柔性转轴组件，其特征在于，所述转轴包括镂空结构，所述第一主体和第二主体的连接线缆通过所述镂空结构。
  10. 根据权利要求1所述的多段式柔性转轴组件，其特征在于，所述柔性支架包括限位槽，用于引导通过所述第一主体和第二主体的连接线缆。
  11. 根据权利要求2所述的多段式柔性转轴组件，其特征在于，其包括扭力调节螺丝，所述转轴包括转轴开孔，所述扭力调节螺丝插入到所述转轴开孔中并且抵靠所述连杆。
  12. 根据权利要求1所述的多段式柔性转轴组件，其特征在于，在所述多段式柔性转轴组件没有转动的情况下，所述柔性支架的横截面呈现为矩形，并且所述柔性支架在连接所述第一主体和第二主体的位置包括连接位。
  13. 一种电子设备，包括第一主体和第二主体，其特征在于，还包括根据权利要求1至12中任一项所述的多段式柔性转轴组件，所述多段式柔性转轴组件连接所述第一主体和第二主体使所述第一主体和第二主体可相对转动。
  14. 根据权利要求13所述的电子设备，其特征在于，所述电子设备为智能眼镜，所述第一主体包括所述智能眼镜的镜框，所述第二主体包括所述智能眼镜的镜腿，或者所述第一主体和所述第二主体包括所述镜腿的两个部分。
  15. 根据权利要求13所述的电子设备，其特征在于，包括显示模组，所述显示模组的第一显示面板位于所述第一主体，所述显示模组的第二显示面板位于所述第二主体。
  16. 根据权利要求13所述的电子设备，其特征在于，包括柔性显示屏，所述柔性显示屏的第一非折弯部位于所述第一主体，所述柔性显示屏的第二非折弯部位于所述第二主体，所述柔性显示屏的折弯部对应所述多段式柔性转轴组件，在所述第一主体与所述第二主体相对转动过程中，所述折弯部发生形变。
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CN113888969A (zh) * 2021-09-23 2022-01-04 武汉天马微电子有限公司 柔性显示装置及电子设备
CN114217444A (zh) * 2022-01-24 2022-03-22 湖北星纪时代科技有限公司 多段式柔性转轴组件和电子设备
CN217238525U (zh) * 2022-01-24 2022-08-19 湖北星纪时代科技有限公司 多段式柔性转轴组件和电子设备

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