Connecting assembly, hinge mechanism and foldable electronic equipment

Abstract

The invention discloses a connecting assembly, a hinge mechanism and foldable electronic equipment. The connecting assembly comprises a connecting piece and a cover plate. The connecting piece comprises a connecting body, a first limiting part and a second limiting part. The connecting body is provided with a first groove, the axis of the first groove is arranged in the first direction of the connecting body, the first limiting part and the second limiting part are fixedly arranged on the connecting body at intervals along the axis of the first groove, and the first groove is formed between the first limiting part and the second limiting part. The cover plate is in limiting fit with the first limiting part and the second limiting part, and the cover plate is fixedly connected with the connecting piece so that at least part of the cover plate can cover the first groove. The connecting assembly can be easily connected with the rotating piece of the hinge mechanism, the assembly cost of the hinge mechanism can be reduced, and the cost of the foldable electronic equipment can be reduced.

Description

Technical Field

[0001] This disclosure relates to the field of electronic technology, and in particular to a connection component, a hinge mechanism, and a foldable electronic device. Background Technology

[0002] Mobile phones, tablets, and other electronic devices have become indispensable technological products in people's lives, studies, and entertainment. Currently, foldable electronic devices feature flexible displays that are easy to carry when folded. When unfolded, these displays offer a larger display area, making foldable electronic devices increasingly popular with consumers.

[0003] In related technologies, foldable electronic devices typically utilize hinge mechanisms to rotate the housing body, enabling the flexible display screen to unfold or fold. The hinge mechanism usually connects to the housing body via connectors to drive its rotation. However, traditional hinge mechanisms have numerous parts and are becoming increasingly compact, making the assembly of the rotating and connecting components difficult and resulting in high assembly costs. This hinders efforts to reduce the cost of foldable electronic devices. Summary of the Invention

[0004] This disclosure provides a connecting component, a hinge mechanism, and a foldable electronic device. The connecting component is easily connected to the rotating parts of the hinge mechanism, which can reduce the assembly cost of the hinge mechanism and help reduce the cost of the foldable electronic device.

[0005] The technical solution is as follows:

[0006] According to a first aspect of the present disclosure, a connecting assembly is provided, including a connector and a cover plate. The connector includes a connecting body, a first limiting portion, and a second limiting portion. The connecting body has a first groove, the axis of which is disposed along a first direction of the connecting body. The first limiting portion and the second limiting portion are fixedly disposed on the connecting body at a distance along the axis of the first groove, and the first groove is disposed between the first limiting portion and the second limiting portion. The cover plate is respectively limited and engaged with the first limiting portion and the second limiting portion, and the cover plate is fixedly connected to the connector such that at least a portion of the cover plate covers the first groove.

[0007] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0008] When this connecting assembly is assembled into a hinge mechanism, the rotating part of the hinge mechanism is positioned within the first groove, and then limited by a cover plate and a first and second limiting part. Finally, the cover plate is fixedly connected to the connecting member, so that at least a portion of the cover plate covers the first groove, allowing the rotating part to be rotatably installed between the connecting member and the cover plate. This design is convenient and easy to assemble and install. Thus, this connecting assembly is easy to connect to the rotating part of the hinge mechanism, reducing the assembly cost of the hinge mechanism.

[0009] The technical solution of this disclosure will be further explained below:

[0010] In one embodiment, the cover plate is slidably connected to the first limiting part and the second limiting part along the second direction of the connecting body, and the second direction intersects with the first direction.

[0011] And / or, the connecting body includes a first side and a second side disposed opposite to the first side, the first side having a first notch, and the first groove including at least two, wherein the two first grooves are spaced apart on both sides of the first notch. The cover plate has a second notch adapted to the first notch.

[0012] In one embodiment, one of the cover plate and the first limiting part is provided with a first sliding groove, the length direction of the first sliding groove is in the same direction as the second direction of the connecting body, and the other of the cover plate and the first limiting part is provided with a first sliding rail that slides in cooperation with the first sliding groove, and the first sliding groove and the first sliding rail are anti-detached in the third direction of the connecting body, and the first direction, the second direction and the third direction are perpendicular to each other.

[0013] And / or, one of the cover plate and the second limiting part is provided with a second sliding groove, the length direction of the second sliding groove is in the same direction as the second direction of the connecting body, and the other of the cover plate and the second limiting part is provided with a second sliding rail that slides in cooperation with the second sliding groove, and the second sliding groove and the second sliding rail are anti-detached in the third direction of the connecting body, and the first direction, the second direction and the third direction are perpendicular to each other.

[0014] In one embodiment, the first limiting portion includes a first pressure-bearing surface, at least a portion of which is recessed into the connecting body to form a first groove. One end of the first groove has a first opening on a second side, and the first pressure-bearing surface includes a first limiting sidewall at the other end of the first groove.

[0015] In one embodiment, the first limiting part further includes a first protrusion fixed to the first pressure-bearing surface and a first anti-detachment body fixedly connected to the first protrusion. The first protrusion protrudes upward along a third direction from the connecting body, so that the first anti-detachment body is disposed above the first pressure-bearing surface. The first slide rail slides in cooperation with the first slide groove and abuts against the first anti-detachment body.

[0016] In one embodiment, the second limiting portion includes a second pressure-bearing surface, at least a portion of which is recessed into the connecting body to form a second groove. One end of the second groove is provided with a second opening on a second side, and the second pressure-bearing surface includes a second limiting sidewall provided at the other end of the second groove.

[0017] In one embodiment, the second limiting part further includes a second protrusion fixed to the second pressure-bearing surface and a second anti-detachment body fixedly connected to the second protrusion. The second protrusion protrudes upward along a third direction from the connecting body, so that the second anti-detachment body is positioned above the second pressure-bearing surface. The second slide rail slides in conjunction with the second slide groove and abuts against the second anti-detachment body.

[0018] In one embodiment, one of the connecting body and the cover plate is provided with a locking part, and the other is provided with a mating part that engages with the locking part. The cover plate has a closed state that covers the first groove and an open state that opens the first groove.

[0019] When the cover is in the closed state, the first notch and the second notch overlap, and the locking part and the mating part lock together to fix the cover to the connector.

[0020] When the cover moves from the first side to the second side to switch to the open state, the locking part separates from the mating part.

[0021] In one embodiment, when the cover is in the closed state, the locking part and the mating part are locked together so that the cover is elastically pressed against the first limiting part and the second limiting part.

[0022] And / or, the mating part includes a recess and is disposed on the connecting body, and the locking part includes a latching protrusion that is nested and fixed with the recess, and the latching protrusion is disposed on the cover plate.

[0023] In one embodiment, the cover plate further includes reinforcing ribs that protrude toward the connecting body.

[0024] In one embodiment, the connecting body is provided with a clearance groove for the reinforcing rib, and the reinforcing rib is disposed opposite to the second notch. When the cover plate is in the closed state, at least a portion of the reinforcing rib is embedded in the clearance groove.

[0025] In one embodiment, the connecting assembly further includes a welding layer, through which the cover plate is fixedly connected to the connector.

[0026] And / or, the connecting assembly also includes an adhesive layer, through which the cover plate is fixedly connected to the connector.

[0027] In one embodiment, the cover plate is provided with a second groove. When the cover plate is fixed to the connector, the second groove is arranged opposite to the first groove to form a limiting groove.

[0028] And / or, on the cross-section of the second direction connecting the body, the first groove is in the shape of a partially circular hole or a U-shaped hole.

[0029] According to a second aspect of the present disclosure, a hinge mechanism is also provided, including a base frame assembly, a first link assembly, a second link assembly, and a connecting assembly in any of the above embodiments. The first link assembly is rotatably connected to the base frame assembly and includes a rotating member rotatably connected to the connecting assembly. The rotating member rotatably engages with a first groove and is constrained to the connecting body by a cover plate. The second link assembly is rotatably connected to the base frame assembly and slidably connected to the connecting member.

[0030] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0031] During assembly, the first link assembly is rotatably connected to the base frame assembly, followed by the second link assembly, which is then rotatably connected to the base frame assembly and slidably connected to the connecting member. Next, the rotating part is placed into the first groove. It is then positioned by a cover plate engaging with the first and second limiting parts. Finally, the cover plate is fixedly connected to the connecting member, covering at least a portion of the cover plate within the first groove. This allows the rotating part to be rotatably installed between the connecting member and the cover plate without interference from other adjacent parts, resulting in convenient organization and installation. This reduces the assembly cost of the hinge mechanism.

[0032] The technical solution of this disclosure will be further explained below:

[0033] In one embodiment, the connecting body includes a first side and a second side opposite to the first side. The first side has a first notch, and at least two first grooves are provided, wherein the two first grooves are spaced apart on both sides of the first notch. The cover plate has a second notch adapted to the first notch. The rotating member includes a connecting rod body movably disposed in the first and second notches. The connecting rod body has shafts on two opposite sides, which are respectively rotatably engaged with the two first grooves one by one.

[0034] According to a third aspect of the present disclosure, a foldable electronic device is also provided, including a flexible display screen, a housing assembly, and a hinge mechanism as described in any of the above embodiments. The housing assembly includes a housing body fixedly connected to a connector. At least a portion of the flexible display screen covers the hinge mechanism and the housing body.

[0035] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0036] This foldable electronic device utilizes the hinge mechanism of any of the above embodiments, with at least a portion of the flexible display screen covering the hinge mechanism and the shell body. The hinge mechanism can be connected to the shell body via a connector, allowing the shell body to rotate relative to the base frame assembly via a first and second linkage assembly, thereby enabling the unfolding and folding of the flexible display screen. The connector is easily connected to the rotating parts of the hinge mechanism, reducing the assembly cost of the hinge mechanism and thus contributing to a lower cost for the foldable electronic device.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0038] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0039] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a foldable electronic device shown in one embodiment.

[0041] Figure 2 for Figure 1 The diagram shows the structure of the hinge mechanism.

[0042] Figure 3 for Figure 2 The diagram shows the assembly of the connecting components and the rotating parts.

[0043] Figure 4 for Figure 3 The diagram shows the structure of the connecting assembly after the cover plate is separated from the connector.

[0044] Figure 5 for Figure 4 A partial structural diagram of the connector is shown.

[0045] Figure 6 for Figure 4 The diagram shows the structure of the cover plate.

[0046] Figure 7 for Figure 3 The diagram shows a cross-sectional view of AA.

[0047] Figure 8 This is a schematic diagram of the hinge mechanism in one embodiment.

[0048] Figure 9 This is a schematic diagram of the hinge mechanism in one embodiment.

[0049] Figure 10 for Figure 9 The schematic diagram of the hinge mechanism shown is shown.

[0050] Figure 11 for Figure 1 The diagram shows the hardware structure of the foldable electronic device.

[0051] Explanation of reference numerals in the attached figures:

[0052] 10. Foldable electronic device; 11. Processing component; 12. Memory; 13. Power supply component; 14. Multimedia component; 15. Audio component; 16. Input / output interface; 17. Sensor component; 18. Communication component; 10a. Flexible display screen; 10b. Hinge mechanism; 101. Accommodation space; 10c. Housing assembly; 103. Housing body; 100. Connecting component; 110. Connector; 111. Connecting body; 1111. First groove; 1112. First side; 1113. Second side; 1114. First notch; 1115. Mating part; 1116. Recess; 1117. Clearance groove; 112. First limiting part; 1121. First slide; 1122. First pressure bearing surface; 1001. First opening; 1002. First limiting sidewall; 1123. 1124. First protrusion; 113. First anti-detachment body; 114. Second limiting part; 115. Second slide groove; 116. Second bearing surface; 1003. Second opening; 1004. Second limiting sidewall; 115. Second protrusion; 116. Second anti-detachment body; 120. Cover plate; 121. Second notch; 122. First slide rail; 123. Second slide rail; 124. Locking part; 1241. Locking protrusion; 125. Reinforcing rib; 126. Second groove; 130. Support member; 200. Base frame assembly; 300. First connecting rod assembly; 310. Rotating member; 311. Connecting rod body; 312. Shaft; 320. First connecting rod; 330. Third connecting rod; 350. Transmission member; 400. Second connecting rod assembly; 410. Second connecting rod; 500. Damping assembly; 600. Synchronization assembly. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0055] Mobile phones, tablets, and other electronic devices have become indispensable technological products in people's lives, studies, and entertainment, bringing them numerous conveniences and enjoyment. With the diversification of electronic device functions, there are now many types and brands available, offering consumers a wide range of choices. Simply improving the functional features of electronic devices is no longer sufficient to meet people's demands.

[0056] As flexible displays become increasingly sophisticated, their application in electronic devices is becoming more widespread. Foldable electronic devices using flexible displays offer the advantage of folding for portability. Furthermore, the unfolded flexible display provides a larger display area, making them increasingly popular with consumers. Among foldable electronic devices with similar display size and performance, the lighter and more comfortable the device is to hold, the more attractive it is to consumers.

[0057] In related technologies, foldable electronic devices typically utilize hinge mechanisms to enable flexible displays to unfold or fold. However, traditional hinge mechanisms are limited by material properties and cost considerations, requiring the support structure components to be designed with greater thickness to meet strength requirements. This results in a thicker and heavier hinge mechanism, which is not conducive to achieving a thinner and lighter foldable electronic device.

[0058] Based on this, the present disclosure provides a hinge mechanism. By optimizing the support structure, the support structure of this hinge mechanism can be designed to be at least partially thinner, which is beneficial for achieving the thinner and lighter design of foldable electronic devices.

[0059] To better understand the hinge mechanism of this disclosure, it will be illustrated using a foldable electronic device that applies this hinge mechanism.

[0060] like Figure 1 as well as Figure 2 As shown, in an embodiment of this disclosure, a foldable electronic device 10 is provided, including a flexible display screen 10a, a housing assembly 10c, and a hinge mechanism 10b. The housing assembly 10c includes a housing body 103. At least a portion of the flexible display screen 10a covers the hinge mechanism 10b and the housing body 103. The housing body 103 is partially fixedly connected to the hinge mechanism 10b to drive the housing body 103 to rotate. Thus, the flexible display screen 10a is folded or unfolded as the housing body 103 moves with the hinge mechanism 10b.

[0061] Specifically, such as Figure 3 as well as Figure 4 As shown, the hinge mechanism 10b includes a connecting assembly 100, a base frame assembly 200, a first link assembly 300, and a second link assembly 400. The connecting assembly 100 includes a connector 110 and a cover plate 120. The connector 110 includes a connecting body 111, a first limiting portion 112, and a second limiting portion 113. The connecting body 111 has a first groove 1111, the axis of which is arranged along a first direction of the connecting body 111. The first limiting portion 112 and the second limiting portion 113 are fixedly disposed on the connecting body 111 at intervals along the axis of the first groove 1111, and the first groove 1111 is disposed between the first limiting portion 112 and the second limiting portion 113. The cover plate 120 is respectively engaged with the first limiting portion 112 and the second limiting portion 113, and the cover plate 120 is fixedly connected to the connector 110 such that at least a portion of the cover plate 120 covers the first groove 1111.

[0062] The first link assembly 300 is rotatably connected to the base frame assembly 200. The first link assembly 300 includes a rotating member 310 rotatably connected to the connecting assembly 100. The rotating member 310 is rotatably engaged with the first groove 1111 and is constrained on the connecting body 111 by the cover plate 120. The second link assembly 400 is rotatably connected to the base frame assembly 200 and slidably connected to the connecting member 110.

[0063] During assembly of the hinge mechanism 10b, the first link assembly 300 is rotatably connected to the base frame assembly 200, and then the second link assembly 400 is rotatably connected to the base frame assembly 200. The second link assembly 400 is slidably connected to the connector 110. Next, a portion of the rotating member 310 is placed in the first groove 1111. Then, the cover plate 120 is limited and engaged with the first limiting part 112 and the second limiting part 113. Finally, the cover plate 120 is fixedly connected to the connector 110, so that at least a portion of the cover plate 120 covers the first groove 1111. This allows the rotating member 310 to be rotatably installed between the connector 110 and the cover plate 120 without interference from other parts adjacent to the rotating member 310, making the assembly convenient and the installation easy. In this way, the assembly cost of the hinge mechanism 10b can be reduced, which in turn helps to reduce the cost of the foldable electronic device 10.

[0064] In addition, the hinge mechanism 10b can be connected to the shell body 103 via the connector 110, so as to drive the shell body 103 to rotate relative to the base frame assembly 200 through the first link assembly 300 and the second link assembly 400, thereby enabling the flexible display screen 10a to unfold and fold.

[0065] To better understand the technical solutions disclosed herein, such as Figures 2 to 4As shown, the first direction is the X-axis direction. The second direction is the Y-axis direction. The third direction is the Z-axis direction. Optionally, the length direction of the connector 110 and the length direction of the base frame assembly 200 are set as the X-axis direction, the width direction of the connector 110 and the width direction of the base frame assembly 200 are set as the Y-axis direction, and the thickness direction of the connector 110 and the thickness direction of the base frame assembly 200 are also set as the Z-axis direction.

[0066] Understandably, when the foldable electronic device 10 is in the unfolded state, its thickness direction is also in the Z-axis direction.

[0067] like Figures 3 to 5 As shown, in some embodiments, the connecting body 111 includes a first side 1112 and a second side 1113 opposite to the first side 1112. The first side 1112 has a first notch 1114, and the first groove 1111 includes at least two, wherein the two first grooves 1111 are spaced apart on both sides of the first notch 1114. The cover plate 120 has a second notch 121 adapted to the first notch 1114. The rotating member 310 includes a connecting rod body 311 movably disposed in the first notch 1114 and the second notch 121. The two opposite sides of the connecting rod body 311 are respectively provided with shafts 312, which are rotatably engaged with the two first grooves 1111 respectively. Thus, the shafts 312 are disposed in the first grooves 1111, and then are limited and engaged with the first limiting part 112 and the second limiting part 113 by the cover plate 120. Finally, the cover plate 120 is fixedly connected to the connector 110, so that at least a portion of the cover plate 120 covers the first groove 1111. This allows the shaft 312 to be rotatably installed between the connector 110 and the cover plate 120, achieving a rotatable connection between the rotating component 310 and the connecting assembly 100. During this process, the arrangement of the shaft 312 and the connecting assembly 100 is convenient, and installation is easy. After the shaft 312 is rotatably installed between the connector 110 and the cover plate 120, at least a portion of the connecting body 111 is embedded in the first notch 1114 and the second notch 121, ensuring a tight fit between the connecting assembly 100 and the rotating component 310 without interference.

[0068] like Figures 3 to 7 As shown, in some embodiments, the cover plate 120 is slidably connected to the first limiting portion 112 and the second limiting portion 113 along the second direction of the connecting body 111, and the second direction intersects with the first direction. Thus, the cover plate 120 is slidably connected to the first limiting portion 112 and the second limiting portion 113 along the second direction, thereby restricting the cover plate 120 to the connecting body 111. This facilitates further fixing to the connector 110 by means of bonding, welding, snap-fitting, etc., making it easy to implement and further improving the convenience of assembly.

[0069] Furthermore, in some embodiments, one of the cover plate 120 and the first limiting part 112 is provided with a first sliding groove 1121, the length direction of the first sliding groove 1121 being in the same direction as the second direction of the connecting body 111. The other of the cover plate 120 and the first limiting part 112 is provided with a first slide rail 122 that slides in cooperation with the first sliding groove 1121, and the first sliding groove 1121 and the first slide rail 122 are anti-detached in the third direction of the connecting body 111, with the first direction, the second direction, and the third direction being perpendicular to each other. Thus, through the sliding cooperation of the first sliding groove 1121 and the first slide rail 122, the cover plate 120 and the first limiting part 112 are slidably connected. At the same time, through the anti-detachment cooperation of the first sliding groove 1121 and the first slide rail 122 in the third direction of the connecting body 111, the cover plate 120 is connected to or separated from the connecting member 110 along the second direction.

[0070] In conjunction with the above-described embodiment of the first groove 1121, as follows: Figures 5 to 7 As shown, in some embodiments, the first limiting portion 112 includes a first pressure-bearing surface 1122, at least a portion of which is recessed into the connecting body 111 to form a first groove 1121. One end of the first groove 1121 has a first opening 1001 located on the second side 1113, and the first pressure-bearing surface 1122 includes a first limiting sidewall 1002 located at the other end of the first groove 1121. Thus, the first slide rail 122 is mounted on the cover plate 120, and the first pressure-bearing surface 1122 supports the first slide rail 122. When the cover plate 120 is inserted into the first slide groove 1121 through the first opening 1001 in the second direction, the first slide rail 122 and the first limiting side wall 1002 limit the position of the cover plate 120 inserted into the first limiting part 112, so that the first slide rail 122 can enter and exit the first slide groove 1121 through the first opening 1001. This has a foolproof effect and can further improve the convenience of assembling the cover plate 120 and the connector 110.

[0071] Furthermore, such as Figures 5 to 7 As shown, in some embodiments, the first limiting part 112 further includes a first protrusion 1123 fixedly disposed on the first pressure bearing surface 1122 and a first anti-detachment body 1124 fixedly connected to the first protrusion 1123. The first protrusion 1123 protrudes upward from the connecting body 111 in a third direction, so that the first anti-detachment body 1124 is disposed above the first pressure bearing surface 1122. The first slide rail 122 is slidably engaged with the first slide groove 1121 and abuts against the first anti-detachment body 1124. Thus, the first slide rail 122 is slidably engaged with the first slide groove 1121 and abuts against the first anti-detachment body 1124 and the first pressure bearing surface 1122 respectively, to prevent the first slide rail 122 from detaching from the connecting body 111 in a third direction.

[0072] like Figures 3 to 7As shown, in some embodiments, one of the cover plate 120 and the second limiting part 113 is provided with a second sliding groove 1131. The length direction of the second sliding groove 1131 is in the same direction as the second direction of the connecting body 111. The other of the cover plate 120 and the second limiting part 113 is provided with a second slide rail 123 that slides in cooperation with the second sliding groove 1131. The second sliding groove 1131 and the second slide rail 123 are anti-detached in the third direction of the connecting body 111, and the first direction, the second direction, and the third direction are perpendicular to each other. In this way, the sliding connection between the cover plate 120 and the second limiting part 113 is realized through the sliding cooperation between the second sliding groove 1131 and the second slide rail 123. At the same time, the anti-detachment cooperation between the second sliding groove 1131 and the second slide rail 123 in the third direction of the connecting body 111 allows the cover plate 120 to be connected to or separated from the connector 110 along the second direction.

[0073] In conjunction with the above-described embodiment of the second groove 1131, as follows: Figures 5 to 7 As shown, in some embodiments, the second limiting portion 113 includes a second pressure-bearing surface 1132, at least a portion of which is recessed into the connecting body 111 to form a second sliding groove 1131. One end of the second sliding groove 1131 has a second opening 1003 disposed on the second side 1113, and the second pressure-bearing surface 1132 includes a second limiting sidewall 1004 disposed at the other end of the second sliding groove 1131. Thus, the second slide rail 123 is disposed on the cover plate 120, and the second pressure-bearing surface 1132 is used to support the second slide rail 123. When the cover plate 120 is inserted into the second slide groove 1131 through the second opening 1003 along the second direction, the second slide rail 123 and the second limiting side wall 1004 limit the position of the cover plate 120 inserted into the second limiting part 113, so that the second slide rail 123 can enter and exit the second slide groove 1131 through the second opening 1003. This has a foolproof effect and can further improve the convenience of assembling the cover plate 120 and the connector 110.

[0074] Furthermore, such as Figures 5 to 7 As shown, in some embodiments, the second limiting part 113 further includes a second protrusion 1133 fixedly disposed on the second pressure bearing surface 1132 and a second anti-detachment body 1134 fixedly connected to the second protrusion 1133. The second protrusion 1133 protrudes upward from the connecting body 111 in a third direction, so that the second anti-detachment body 1134 is disposed above the second pressure bearing surface 1132. The second slide rail 123 slides in engagement with the second slide groove 1131 and abuts against the second anti-detachment body 1134. Thus, the second slide rail 123 slides in engagement with the second slide groove 1131 and abuts against the second anti-detachment body 1134 and the second pressure bearing surface 1132 respectively, to prevent the second slide rail 123 from detaching from the connecting body 111 in a third direction.

[0075] In conjunction with any embodiment of the first gap 1114 described above, such as Figures 5 to 7 As shown, in some embodiments, one of the connecting body 111 and the cover plate 120 is provided with a locking part 124, and the other is provided with a mating part 1115 that locks into the locking part 124. The cover plate 120 has a closed state that covers the first groove 1111 and an open state that opens the first groove 1111. When the cover plate 120 is in the closed state, the first notch 1114 and the second notch 121 overlap, and the locking part 124 and the mating part 1115 lock into each other to fix the cover plate 120 to the connecting member 110. When the cover plate 120 moves along the direction from the first side 1112 to the second side 1113 to switch to the open state, the locking part 124 and the mating part 1115 separate. Thus, the cover plate 120 moves along the direction from the second side 1113 to the first side 1112 and slides into contact with the first limiting part 112 and the second limiting part 113, so that the cover plate 120 is restricted to the connecting body 111. When the cover plate 120 moves to the set position, it is in the closed state and locked in place by the locking part 124 and the mating part 1115, thus fixing the cover plate 120 to the connecting member 110. When the cover plate 120 is moved in the opposite direction, that is, when it moves from the first side 1112 to the second side 1113 to switch to the open state, the locking part 124 and the mating part 1115 separate. Thus, during the movement of the cover plate 120 in the second direction, the cover plate 120 is locked or separated from the connecting body 111, which is convenient for assembly and installation.

[0076] Furthermore, by locking or separating the locking part 124 and the mating part 1115, the cover plate 120 can be disassembled, reducing the maintenance cost of the hinge mechanism 10b.

[0077] In some embodiments, when the cover plate 120 is in the closed state, the locking part 124 and the mating part 1115 are locked together, so that the cover plate 120 is elastically pressed against the first limiting part 112 and the second limiting part 113. In this way, the locking part 124 and the mating part 1115 are locked together, which can lift the cover plate 120, so that the cover plate 120 is elastically pressed against the first limiting part 112 and the second limiting part 113, which can increase the friction and facilitate the reliable fixing of the cover plate 120 to the connector 110.

[0078] like Figures 5 to 7 As shown, in some embodiments, the mating part 1115 includes a recess 1116 and is disposed on the connecting body 111. The locking part 124 includes a latching protrusion 1241 that is nested and fixed with the recess 1116 and is disposed on the cover plate 120. Thus, when the cover plate 120 is in the closed state, the cooperation between the recess and the latching protrusion 1241 increases the sliding damping between the cover plate 120 and the connecting body 111, preventing them from easily separating. Moreover, combined with the aforementioned limiting sidewall and anti-detachment body, the cover plate 120 can be reliably restricted to the connecting body 111.

[0079] The recess includes a hole or groove.

[0080] In combination with any of the above embodiments, such as Figures 5 to 7 As shown, in some embodiments, the cover plate 120 further includes a reinforcing rib 125, which protrudes toward the connecting body 111. Thus, by providing the reinforcing rib 125, the strength of the cover plate 120 can be increased, and a thinner cover plate 120 can be used to lock the rotating member 310, which is beneficial to achieving a thinner hinge mechanism 10b.

[0081] Furthermore, in some embodiments, the connecting body 111 is provided with a relief groove 1117 to avoid the reinforcing rib 125, and the reinforcing rib 125 is disposed opposite to the second notch 121. When the cover plate 120 is in the closed state, at least a portion of the reinforcing rib 125 is embedded in the relief groove 1117. In this way, by accommodating the reinforcing rib 125 through the relief groove 1117, the cover plate 120 and the connecting member 110 fit tightly, making the structure of the hinge mechanism 10b more compact.

[0082] like Figures 5 to 7 As shown, in some embodiments, the cover plate 120 is provided with a second groove 126. When the cover plate 120 is fixed to the connector 110, the second groove 126 is arranged opposite to the first groove 1111 to form a limiting groove. In this way, the second groove 126 can be used to partially rotate with the rotating member 310, so as to better use the limiting groove to restrict the rotation of the rotating member 310, so that the rotating member 310 can reliably rotate on the connecting assembly 100.

[0083] In some embodiments, on the cross-section of the connecting body 111 in the second direction, the first groove 1111 is partially circular or U-shaped.

[0084] The second groove 126 is adapted to the first groove 1111.

[0085] It should be noted that the specific implementation of "fixed connection between cover plate 120 and connector 110" includes, but is not limited to, the fixing method disclosed in any of the above embodiments, and can also be achieved by at least one of welding, bonding, riveting, etc.

[0086] Optionally, in some embodiments, the connecting assembly 100 further includes a welding layer (not shown), through which the cover plate 120 is fixedly connected to the connector 110.

[0087] Furthermore, the sliding cover is slidably connected to the first limiting part 112 and the second limiting part 113, and then fixed by means of a welding layer.

[0088] Optionally, in conjunction with any of the above embodiments, in some embodiments, the connecting component 100 further includes an adhesive layer, and the cover plate 120 is fixedly connected to the connector 110 through the adhesive layer.

[0089] Furthermore, the sliding cover is slidably connected to the first limiting part 112 and the second limiting part 113, and then fixed by means of an adhesive layer.

[0090] like Figure 2 as well as Figures 8 to 10 As shown, in some embodiments, the connecting assembly 100 further includes a support member 130 rotatably connected to the connector 110. When the foldable electronic device 10 is in use, if the flexible display screen 10a needs to be unfolded, the hinge mechanism 10b is switched to the unfolded state, facilitating the partial cooperation of the base frame assembly 200, the support member 130, and the connecting rod components to form a support structure. This allows the support structure and the shell body 103 to more comprehensively support the flexible display screen 10a, improving display quality and facilitating user operation of the flexible display screen 10a. When the flexible display screen 10a is folded, the hinge mechanism 10b switches from the unfolded state to the folded state. During this process, the first connecting rod assembly 300 and the second connecting rod assembly 400 rotate along the base frame assembly 200. The first connecting rod assembly 300 drives the connector 110 to rotate, causing the connector 110 and the second connecting rod assembly 400 to slide. This allows the connector 110 to move the support member 130 away from the base frame assembly 200, creating space for the flexible display screen 10a to bend. This allows the support member 130, the base frame assembly 200, and the connecting rod to cooperate in forming a receiving space 101, better protecting the bent portion of the flexible display screen 10a. When the foldable electronic device 10 is accidentally dropped in its folded state, the flexible display screen 10a bends within the receiving space 101 and engages with the second support member 130, the base frame assembly 200, and the connecting rod, thus limiting and cushioning the deformation of the flexible display screen 10a. This prevents excessive deformation and damage to the flexible display screen 10a, thereby improving the reliability of the foldable electronic device 10.

[0091] Based on any embodiment of the connector 110 described above, such as Figure 2 or Figure 8 As shown, in some embodiments, the hinge mechanism 10b further includes a damping component 500, which engages with the first link assembly 300 and / or the second link assembly 400 in a damped rotational manner. Thus, by providing the damping component 500, the link components can be connected to the base frame assembly 200 in a damped rotational manner, preventing the foldable electronic device 10 from easily rotating, facilitating support or restraint of the flexible display screen 10a, and making it convenient to use.

[0092] It should be noted that the damping component 500 can be installed on any rotating component of the first link assembly 300 and the second link assembly 400, as long as it meets the above requirements.

[0093] It should be noted that the "damping component 500" can also be implemented in other ways, such as using friction plates to increase the rotational friction of the link assembly; or using elastic elements to increase the rotational resistance of the link assembly; or using magnetic elements to increase the rotational resistance of the link assembly, etc.

[0094] It should be noted that the mating structure between the first linkage assembly 300 and the second linkage assembly 400 can be varied, including but not limited to two-stage linkage mechanisms, three-stage linkage mechanisms, four-stage linkage mechanisms, etc. In this process, one of the linkages can be defined as the driving element, driving the moving parts to move.

[0095] like Figure 5 As shown, in some embodiments, the first link assembly 300, the second link assembly 400, and the connecting assembly 100 correspond one-to-one as a second group, and at least two second groups are spaced apart on both sides of the base frame assembly 200. The hinge mechanism 10b also includes a synchronization component 600, through which the link components correspondingly arranged on both sides of the base frame assembly 200 are synchronously rotated and connected. Thus, the synchronization component 600 enables the hinge mechanism 10b on both sides of the base frame assembly 200 to rotate synchronously, thereby realizing the folding and unfolding of the flexible display screen 10a.

[0096] The synchronization component 600 can be implemented in various ways, including but not limited to the gear transmission group mentioned above, as well as other ways of synchronous rotation, such as pulley mechanisms, sprocket mechanisms, etc.

[0097] In some embodiments, such as Figure 8 As shown. Or, as... Figure 9 As shown, the first linkage assembly 300 includes a first linkage 320. One end of the first linkage 320 is rotatably connected to the base frame assembly 200, and the other end is rotatably connected to the connector 110. The second linkage assembly 400 also includes a second linkage 410, which is rotatably connected to the base frame assembly 200 and slidably connected to the connector 110. Thus, during rotation relative to the base frame assembly 200, the second linkage 410 can drive the connector 110 to slide along a predetermined direction, and the first linkage 320 can limit the swing direction of the connector 110, thereby switching the support member 130 between a supported state and a folded state.

[0098] It should be noted that the other end of the first link 320 is rotatably connected to the connector 110, including direct connection or indirect connection through other links.

[0099] Optionally, such as Figure 8As shown, the other end of the first link 320 is directly rotatably connected to the connector 110. Thus, in conjunction with the aforementioned embodiments of the two sets of support plates, the first link 320 and the second link 410 cooperate to form a two-stage linkage mechanism, enabling the hinge mechanism 10b to form a teardrop-shaped receiving space 101 in the folded state. This satisfies the bending space required for the flexible display screen 10a to bend, thereby improving the service life of the flexible display screen 10a. In this case, the first link 320 is a rotating component 310.

[0100] In other embodiments, such as Figure 9 as well as Figure 10 As shown, the first linkage assembly 300 also includes a third linkage 330. The other end of the first linkage 320 is rotatably connected to one end of the third linkage 330, and the other end of the third linkage 330 is rotatably connected to the connector 110. The first linkage assembly 300 also includes a transmission member 350, one end of which is rotatably connected to the second linkage 410, and the other end of which is rotatably connected to both the other end of the first linkage 320 and one end of the third linkage 330. Thus, during rotation relative to the base frame assembly 200, the second linkage 410 can drive the connector 110 to slide along a predetermined direction, and the first linkage 320 and the third linkage 330 limit the swing direction of the connector 110, thereby switching the support member 130 between a supported state and a folded state.

[0101] The transmission component 350, the first link 320, the second link 410, and the third link 330 cooperate to form a three-stage linkage mechanism. By restricting the swing of the connecting member 110 through the first link 320 and the third link 330, the connecting member 110 and the second support member 130 can move further away from the first support member 130. This allows the teardrop-shaped receiving space 101 formed by the hinge mechanism 10b in the folded state to be more elongated, providing more precise bending space for the flexible display screen 10a and better conforming to it, thus protecting the folded flexible display screen 10a. In this case, the third link 330 is a rotating component 310.

[0102] In other embodiments, the first linkage assembly 300 further includes at least one link disposed between the first link 320 and the third link 330 to form a four-stage linkage mechanism, a five-stage linkage mechanism, etc.

[0103] On the longitudinal projection plane of the base frame assembly 200, when the hinge mechanism 10b is in the folded state, the width of the accommodating space 101 gradually increases from the base frame assembly 200 to the other end of the first link 320, and gradually decreases from one end of the third link 330 to the other end of the third link 330. Thus, the accommodating space 101 gradually increases to reduce stress concentration. The gradual decrease in width from one end of the third link 330 to the other end of the third link 330 causes the flexible display screen 10a to gradually conform away from the base frame assembly 200. This facilitates the thinning and lightening of the foldable electronic device 10, and also allows the flexible display screen 10a to bend smoothly, improving its bending lifespan.

[0104] In conjunction with any of the above embodiments, in some embodiments, the hinge mechanism 10b can be suspended at any angle within the range of 45° to 135°. Thus, the hinge mechanism 10b can hover within the range of 45° to 135°, defined as a hovering state. In the hovering state, the hinge mechanism 10b can rotate and stop instantly, facilitating the use of the foldable electronic device 10 from multiple angles and improving the user experience of the foldable electronic device 10.

[0105] In any embodiment of the second link 410 described above, the hovering rotation range of the second link 410 is A, where A ≥ 50°. Thus, this rotation range can be flexibly set according to actual needs. For example, A = 50°, 60°, 90°, 100°, 110°, 120°, 130°, 150°, etc.

[0106] In some embodiments, the second link 410 is capable of hovering and rotating, allowing the hinge mechanism 10b to be hovered at any angle within the range of 45° to 135°. In this case, the second link 410 may also be referred to as a synchronizing link.

[0107] Optionally, in some embodiments, the base frame assembly 200 includes a base frame body and a decorative shell (not shown) fixedly connected to the base frame body, with the length direction of the decorative shell aligned with the length direction of the support member 130. Thus, the decorative shell can both protect the hinge mechanism 10b and cooperate with the shell body 103, enhancing the aesthetic appearance of the foldable electronic device 10.

[0108] Optionally, in some embodiments, the base frame assembly 200 further includes a support plate disposed on the base frame body. This facilitates the formation of a support structure or accommodating space 101 when it cooperates with the support member 130. Furthermore, the support plate, in conjunction with the decorative shell, provides better protection for the first link assembly 300 and the second link assembly 400, etc.

[0109] Reference Figure 11As shown, in some embodiments, the foldable electronic device 10 further includes at least one or more of the following components: a processing component 11, a memory 12, a power supply component 13, a multimedia component 14, an audio component 15, an input / output interface 16, a sensor component 17, and a communication component 18.

[0110] The processing component typically controls the overall operation of the foldable electronic device, such as operations associated with display, telephone calls, data communication, camera operation, and recording. The processing component includes at least one or more processors to execute instructions to complete all or part of the steps of the methods described above. Furthermore, the processing component includes at least one or more modules to facilitate interaction between the processing component and other components. For example, the processing component may include at least a multimedia module to facilitate interaction between the multimedia component and the processing component.

[0111] The memory is configured to store various types of data to support the operation of foldable electronic devices. Examples of this data include instructions for any application or method operating on the foldable electronic device, contact data, phonebook data, messages, pictures, videos, etc. The memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory, erasable programmable read-only memory, programmable read-only memory, read-only memory, magnetic storage, flash memory, magnetic disk, or optical disk.

[0112] The control board includes processing components and memory.

[0113] The power supply unit provides power to the various components of the foldable electronic device. The power supply unit includes at least a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the foldable electronic device.

[0114] The multimedia component includes the display module of this disclosure, facilitating human-computer interaction. If the display module includes a touch panel, the display module can be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors can sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, the multimedia component includes a front-facing camera and / or a rear-facing camera. When the foldable electronic device is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera can receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

[0115] The audio component is configured to output and / or input audio signals. For example, the audio component includes a microphone (MIC) configured to receive external audio signals when the foldable electronic device is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory or transmitted via a communication component. In some embodiments, the audio component also includes a speaker for outputting audio signals.

[0116] The input / output interface provides an interface between the processing component and the peripheral interface module, which can be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

[0117] The sensor assembly includes one or more sensors for providing state assessments of various aspects of the foldable electronic device. For example, the sensor assembly can detect the open / closed state of the foldable electronic device, the relative positioning of components such as the display and keypad of the foldable electronic device, changes in the position of the foldable electronic device or a component of the foldable electronic device, the presence or absence of user contact with the foldable electronic device, the orientation or acceleration / deceleration of the foldable electronic device, and temperature changes of the foldable electronic device. The sensor assembly includes at least a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly also includes at least a photosensitizing element, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly also includes at least an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0118] The communication component is configured to facilitate wired or wireless communication between the foldable electronic device and other devices. The foldable electronic device can access wireless networks based on communication standards, such as Wi-Fi, 2G, 3G, 4G, or 6G, or combinations thereof. In one exemplary embodiment, the communication component receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IRDA) technology, Ultra-Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0119] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0120] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0121] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0122] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0123] It should be noted that when a component is described as "fixed to," "set on," "fixed to," or "mounted on" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is considered to be "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0124] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0125] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. A connection assembly, characterized in that The utility model relates to a connecting piece, a first limiting part and a second limiting part, a first recess is arranged on the connecting body, the axis of the first recess is arranged along the first direction of the connecting body, the first limiting part and the second limiting part are fixedly arranged on the connecting body along the axis of the first recess, and the first recess is arranged between the first limiting part and the second limiting part. A cover plate is limitedly matched with the first limiting part and the second limiting part respectively, and the cover plate is fixedly connected with the connecting piece, so that at least part of the cover plate is arranged in the first recess. The cover plate is slidably connected with the first limiting part and the second limiting part along the second direction of the connecting body, and the second direction intersects the first direction.

2. The connection assembly of claim 1, wherein, The connecting body comprises a first side and a second side arranged opposite to the first side, the first side is provided with a first notch, the first recess comprises at least two, and the two first recesses are arranged on both sides of the first notch. The cover plate and one of the first limiting parts are provided with a first sliding groove, the length direction of the first sliding groove is the same as the second direction of the connecting body, the cover plate and the other of the first limiting parts are provided with a first sliding rail slidably matched with the first sliding groove, and the first sliding groove and the first sliding rail are preventively matched in the third direction of the connecting body, and the first direction, the second direction and the third direction are perpendicular to each other.

3. The connection assembly of claim 2, wherein, The cover plate and one of the second limiting parts are provided with a second sliding groove, the length direction of the second sliding groove is the same as the second direction of the connecting body, the cover plate and the other of the second limiting parts are provided with a second sliding rail slidably matched with the second sliding groove, and the second sliding groove and the second sliding rail are preventively matched in the third direction of the connecting body, and the first direction, the second direction and the third direction are perpendicular to each other. The first limiting part comprises a first pressure surface, at least part of the first pressure surface is recessed in the connecting body to form the first sliding groove, one end of the first sliding groove is provided with a first opening arranged on the second side, and the first pressure surface comprises a first limiting side wall arranged on the other end of the first sliding groove.

4. The connection assembly of claim 3, wherein, The first limiting part further comprises a first convex body fixedly arranged on the first pressure surface and a first anti-disengagement body fixedly connected with the first convex body, the first convex body is arranged upwardly protruding the connecting body along the third direction, so that the first anti-disengagement body is arranged above the first pressure surface, the first sliding rail is slidably matched with the first sliding groove and abuts against the first anti-disengagement body.

5. The connection assembly of claim 4, wherein, The second limiting part comprises a second pressure surface, at least part of the second pressure surface is recessed in the connecting body to form the second sliding groove, one end of the second sliding groove is provided with a second opening arranged on the second side, and the second pressure surface comprises a second limiting side wall arranged on the other end of the second sliding groove.

6. The connection assembly of claim 3, wherein, ​ 7. The connection assembly of claim 6, wherein, The second limiting part further comprises a second protrusion fixed to the second pressure surface and a second anti-disengagement body fixedly connected to the second protrusion, the second protrusion protrudes upward along the third direction to the connecting body, so that the second anti-disengagement body is arranged above the second pressure surface; the second sliding rail is in sliding fit with the second sliding groove and abuts against the second anti-disengagement body.

8. The connection assembly according to any one of claims 2 to 7, characterized in that One of the connecting body and the cover plate is provided with a locking part, and the other is provided with a matching part in locking fit with the locking part; the cover plate has a covering state of covering the first groove and an opening state of opening the first groove; When the cover plate is in the covering state, the first notch and the second notch coincide, and the locking part is in locking fit with the matching part to fix the cover plate to the connecting member; When the cover plate is in the covering state, the locking part is in locking fit with the matching part to elastically extrude the cover plate and the first limiting part and the second limiting part.

9. The connection assembly of claim 8, wherein, The matching part comprises a recess and is arranged on the connecting body, and the locking part comprises a clamping protrusion arranged on the cover plate and in nesting fit with the recess. The cover plate further comprises a reinforcing rib protruding toward the connecting body.

10. The connection assembly of claim 2, wherein, The connecting body is provided with an avoiding recess avoiding the reinforcing rib, and the reinforcing rib is arranged opposite to the second notch; when the cover plate is in the covering state, at least part of the reinforcing rib is embedded in the avoiding recess.

11. The connection assembly of claim 10, wherein, The connecting assembly further comprises a welding layer, and the cover plate is fixedly connected to the connecting member through the welding layer; 12. The connection assembly of claim 1, wherein, The connecting assembly further comprises an adhesive layer, and the cover plate is fixedly connected to the connecting member through the adhesive layer. The cover plate is provided with a second recess, and when the cover plate is fixed to the connecting member, the second recess is arranged opposite to the first recess to form a limiting recess; 13. The connection assembly of any one of claims 1 to 12, wherein, On the cross section of the connecting body in the second direction, the first recess is in the shape of a partial circular hole or a U-shaped hole. The connecting assembly comprises a base frame assembly, a first connecting rod assembly, a second connecting rod assembly, and any one of claims 1 to 13, the first connecting rod assembly is rotatably connected to the base frame assembly, the first connecting rod assembly comprises a rotating member rotatably connected to the connecting assembly, the rotating member is in rotational fit with the first recess and is limited on the connecting body through the cover plate; the second connecting rod assembly is rotatably connected to the base frame assembly, and the second connecting rod assembly is in sliding connection with the connecting member.

14. A hinge mechanism, characterized by ​ 15. The hinge mechanism of claim 14, wherein, The connecting body comprises a first side and a second side arranged opposite to the first side, the first side is provided with a first gap, the first gap comprises at least two first grooves, two of the first grooves are arranged on both sides of the first gap; the cover plate is provided with a second gap matched with the first gap; the rotating member comprises a connecting rod body movably arranged in the first gap and the second gap, two opposite sides of the connecting rod body are respectively provided with shaft bodies and are respectively and correspondingly rotationally matched with the two first grooves.

16. A foldable electronic device, characterized by The flexible display screen, the housing assembly and the hinge mechanism of claim 14 or 15 are included, the housing assembly comprises a housing body fixedly connected with the connecting member; at least part of the flexible display screen covers the hinge mechanism and the housing body.

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