Folding assembly and electronic equipment

Abstract

The invention relates to a folding assembly and electronic equipment, and the folding assembly comprises a rotating shaft body, a first folding part, a second folding part, a flexible circuit board, and a fixed sealing part. The first folding part and the second folding part are arranged on the two sides of the rotating shaft body respectively, the first folding part and the second folding part can be folded and unfolded relative to the rotating shaft body, mounting through grooves are formed in the first folding part and the second folding part, and the mounting through grooves penetrate through the first surface and the second surface, opposite to each other, of the first folding part or the second folding part. The flexible circuit board penetrates through the mounting through grooves of the first folding part and the second folding part, and the fixed sealing part is arranged in the mounting through grooves and used for fixing the flexible circuit board and is in sealed connection with the mounting through grooves. Thus, sealing of the flexible circuit board can be achieved without additionally arranging other structures, the structure is simple and more compact, the size of the folding assembly in the thickness direction is reduced, and then the thickness of the electronic equipment adopting the folding assembly is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electronic devices, and in particular to a folding assembly and an electronic device. Background Art

[0002] With the continuous advancement of technology, foldable electronic devices have become widely used. Flexible printed circuits (FPCs) are often used to connect the circuit boards on both sides of these devices. To prevent dust, liquids, and other particles from entering the electronic device through the FPCs and damaging the circuit boards and other components, the FPCs are typically sealed. However, existing sealing structures are complex and space-consuming, impacting the cost and compactness of the electronic devices. Summary of the Invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides a folding assembly and an electronic device.

[0004] According to a first aspect of the present disclosure, there is provided a folding assembly, comprising:

[0005] Rotating shaft body;

[0006] A first folding portion and a second folding portion are respectively provided on both sides of the rotating shaft body, the first folding portion and the second folding portion can be folded and unfolded relative to the rotating shaft body, and the first folding portion and the second folding portion are both provided with a mounting slot, the mounting slot passing through the first surface and the second surface opposite to each other of the first folding portion or the second folding portion;

[0007] a flexible circuit board passing through the mounting slots of the first folding portion and the second folding portion;

[0008] The fixing sealing portion is arranged in the installation groove and is used to fix the flexible circuit board and is sealed to the installation groove.

[0009] In some embodiments of the present disclosure, the fixed sealing portion includes a first clamping portion and a second clamping portion, the first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the portion of the flexible circuit board located in the mounting groove is clamped between the first clamping surface and the second clamping surface.

[0010] In some embodiments of the present disclosure, along the direction of the rotating shaft toward the first folding portion or the second folding portion, the flexible circuit board passes through the mounting slot from the first surface of the first folding portion or the second folding portion and out of the second surface of the first folding portion or the second folding portion;

[0011] Along the direction from the rotating shaft to the first folded portion, the first clamping surface and the second clamping surface of the fixed sealing portion in the first folded portion are inclined toward the second surface of the first folded portion;

[0012] Along the direction from the rotating shaft to the second folded portion, the first clamping surface and the second clamping surface of the fixed sealing portion in the second folded portion are inclined toward a direction approaching the second surface of the second folded portion.

[0013] In some embodiments of the present disclosure, an adhesive layer is provided on one side of the flexible circuit board, and a reinforcement layer is provided on the other side of the flexible circuit board. The adhesive layer is bonded to the second clamping surface, and the reinforcement layer is in contact with the first clamping surface.

[0014] In some embodiments of the present disclosure, a first sealant layer is provided between the first clamping surface and the reinforcement layer, and the first clamping surface is sealed and connected to the reinforcement layer through the first sealant layer.

[0015] In some embodiments of the present disclosure, a second sealant layer is provided between the first clamping portion and the side wall of the installation slot; and / or,

[0016] A third sealant layer is provided between the second clamping portion and the side wall of the installation groove.

[0017] In some embodiments of the present disclosure, first fixing portions are provided at both ends of the first clamping portion, second fixing portions are provided at both ends of the second clamping portion, and fixing structures are provided on both the first folding portion and the second folding portion. The first fixing portion and the second fixing portion on the first folding portion cooperate with the fixing structure on the first folding portion to fix the first clamping portion, the second clamping portion and the first folding portion in connection, and the first fixing portion and the second fixing portion on the second folding portion cooperate with the fixing structure on the second folding portion to fix the first clamping portion, the second clamping portion and the second folding portion in connection.

[0018] In some embodiments of the present disclosure, the first clamping portion includes a first clamping body and a first insert embedded in the first clamping body, the first clamping body is located in the installation slot, both ends of the first insert extend out of the installation slot through the first clamping body, and the extended portion of the first insert constitutes the first fixing portion; and / or,

[0019] The second clamping portion includes a second clamping body and a second insert embedded in the second clamping body. The second clamping body is located in the installation slot. Both ends of the second insert extend out of the installation slot through the second clamping body. The extended portion of the second insert constitutes the second fixing portion.

[0020] In some embodiments of the present disclosure, the first clamping body is formed on the first insert by an injection molding process, the first insert is provided with a plurality of first through holes, and the first clamping body fills each of the first through holes; and / or,

[0021] The second clamping body is formed on the second insert by an injection molding process. The second insert is provided with a plurality of second through holes, and the second clamping body fills each of the second through holes.

[0022] In some embodiments of the present disclosure, the first fixing portion is provided with a first fixing hole and a first positioning hole, and the second fixing portion is provided with a second fixing hole corresponding to the position of the first fixing hole and a second positioning hole corresponding to the position of the first positioning hole;

[0023] The fixing structure includes a third fixing hole and a positioning column provided on the first folding portion and the second folding portion, the positioning column cooperates with the first positioning hole and the second positioning hole, and the first fixing hole, the second fixing hole and the third fixing hole are fixedly connected by fasteners.

[0024] In some embodiments of the present disclosure, the second surface is provided with inner recesses at both ends of the installation slot, the side walls of the inner recesses are connected to the installation slot, and the third fixing hole and the positioning column are provided in the inner recesses.

[0025] In some embodiments of the present disclosure, at least one first clamping portion is provided on the fixed sealing portion, and a second clamping portion corresponding to the first clamping portion is provided on the side wall of the mounting groove, and the first clamping portion is clamped and matched with the second clamping portion.

[0026] In some embodiments of the present disclosure, the mounting groove includes a first side wall opposite to the first clamping portion of the fixed sealing portion, the second clamping portion includes a clamping groove arranged on the first side wall, and the first clamping portion includes a first protrusion arranged on the first clamping portion, and the first protrusion cooperates with the clamping groove.

[0027] In some embodiments of the present disclosure, the mounting groove includes a second side wall arranged opposite to the first side wall, the second side wall is provided with a second protrusion, and the second clamping portion of the fixed sealing portion abuts against both the second side wall and the second protrusion.

[0028] According to a second aspect of the present disclosure, an electronic device is provided, comprising a folding assembly as described in the first aspect and a shell arranged on the back of the folding assembly and located on both sides of the rotating shaft body, wherein an accommodating space is formed between the shell and the first folding portion and the second folding portion, and a circuit board is arranged in the accommodating space of the first folding portion and / or the second folding portion, and the flexible circuit board penetrates into the accommodating space through the mounting slot and is connected to the circuit board.

[0029] In some embodiments of the present disclosure, the electronic device also includes a support plate arranged on the front of the folding component, the first folding part and the second folding part both include a folding body and a support part arranged on the side of the folding body away from the rotating shaft body, the mounting groove is arranged on the folding body, the accommodating space is formed between the support part and the outer shell, the support part is flush with the front of the support plate and together constitute a support surface for supporting the folding screen.

[0030] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: mounting grooves are provided on both the first folding portion and the second folding portion, and the flexible circuit board passes through the mounting grooves. A fixed sealing portion is provided in the mounting grooves to fix the flexible circuit board and seal it with the mounting grooves. In this way, the flexible circuit board can be sealed without the need for additional structures, and the structure is simpler. In addition, since the sealing of the flexible circuit board is achieved inside the first folding portion and the second folding portion, no other space is occupied, making the structure of the folding component more compact, reducing the size of the folding component in the thickness direction, and thus helping to reduce the thickness of the electronic device using the folding component.

[0031] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0033] Figure 1 is a structural cross-sectional view of a folding assembly and a support plate from a certain perspective according to an exemplary embodiment;

[0034] Figure 2 is a structural cross-sectional view of a folding assembly and a support plate from another perspective according to an exemplary embodiment;

[0035] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

[0036] Figure 4 is a structural cross-sectional view of a fixed sealing portion and a flexible circuit board according to an exemplary embodiment;

[0037] Figure 5 is an exploded cross-sectional view of a folding assembly with a rotating shaft body removed according to an exemplary embodiment;

[0038] Figure 6 is an exploded schematic diagram of a folding assembly with a rotating shaft removed according to an exemplary embodiment;

[0039] Figure 7 is an exploded schematic diagram of a first clamping portion according to an exemplary embodiment;

[0040] Figure 8 is an exploded schematic diagram of a second clamping portion according to an exemplary embodiment;

[0041] Figure 9 is a structural cross-sectional view of a folding portion according to an exemplary embodiment;

[0042] Figure 10 It is a schematic diagram of the coordination structure of a folding assembly, a support plate and a folding screen according to an exemplary embodiment.

[0043] In the picture:

[0044] 10-rotating shaft; 20-folding portion; 21-mounting slot; 210-second clamping portion; 211-first side wall; 212-second side wall; 2121-second protrusion; 201-first surface; 202-second surface; 2021-inner recess; 22-fixing structure; 221-third fixing hole; 222-positioning column; 23-folding body; 24-support portion; 30-flexible circuit board; 31-adhesive layer; 32-reinforcement layer; 40-fixed sealing portion; 41-first clamping portion; 410-first clamping surface; 411-first sealing adhesive layer; 412-second sealing adhesive layer; 413-first fixing portion ;4131-first fixing hole;4132-first positioning hole;414-first clamping body;415-first insert;4151-first through hole;42-second clamping part;420-second clamping surface;421-third sealing adhesive layer;422-second fixing part;4221-second fixing hole;4222-second positioning hole;423-second clamping body;424-second insert;4241-second through hole;43-first clamping part;431-first protrusion;50-support plate;51-first support plate;52-second support plate;53-third support plate;60-fastener;70-folding screen. DETAILED DESCRIPTION

[0045] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0046] With the continuous advancement of technology, foldable electronic devices have become widely used. Flexible printed circuits (FPCs) are often used to connect the circuit boards on both sides of these devices. To prevent dust, liquids, and other particles from entering the electronic device through the FPCs and damaging the circuit boards and other components, the FPCs are typically sealed. However, existing sealing structures are complex and space-consuming, impacting the cost and compactness of the electronic devices.

[0047] In the related art, a seal is placed between the through-axis FPC and the circuit board fixed on the middle frame to block the gap between the through-axis FPC and the circuit board. The seal includes a protective portion and a fixing portion. First, the fixing portion is placed between the PCB and the middle frame. Specifically, one end of the fixing portion can be fixed to the middle frame, or the fixing portion can be fixed to the middle frame as a whole. Then, one end of the protective portion is fixedly connected to the other end of the fixing portion. Finally, the other end of the protective portion is fixed to the through-axis FPC to complete the sealing of the through-axis FPC and the circuit board. However, this solution requires that the seal be connected and fixed to the middle frame, the circuit board, and the through-axis FPC in order to achieve sealing. The structure is complex and the connection process is relatively cumbersome. On the other hand, since the seal is placed between the through-axis FPC and the circuit board, the space between the through-axis FPC and the circuit board will increase, thereby increasing the thickness of the electronic device, which is not conducive to the miniaturization design of the electronic device and thus causes a bad experience for the user.

[0048] Based on this, the present disclosure provides a folding component, in which mounting grooves are provided on both the first folding part and the second folding part, and the flexible circuit board passes through the mounting groove. A fixed sealing part is provided in the mounting groove to fix the flexible circuit board and seal it with the mounting groove. In this way, the flexible circuit board can be sealed without the need for additional structures, and the structure is simpler. In addition, since the sealing of the flexible circuit board is achieved inside the first folding part and the second folding part, no other space is occupied, making the structure of the folding component more compact, reducing the size of the folding component in the thickness direction, and thus helping to reduce the thickness of the electronic device using the folding component.

[0049] refer to Figure 1An exemplary embodiment of the present disclosure provides a folding assembly, which can be used in folding electronic devices such as folding mobile phones and folding computers. The folding assembly includes a rotating shaft body 10, two folding parts 20, a flexible circuit board 30 and a fixed sealing part 40. The rotating shaft body 10 can be, for example, a rotating shaft in a folding hinge of a folding electronic device, and the display panel of the electronic device can be opened or folded under the action of the folding hinge. The two folding parts 20 can be defined as a first folding part and a second folding part, for example, in Figure 1 In the illustrated embodiment, the folding portion 20 on the left side can be defined as a first folding portion, and the folding portion on the right side can be defined as a second folding portion. The two folding portions 20, namely the first folding portion and the second folding portion, are provided on both sides of the rotating shaft body 10. The first folding portion and the second folding portion can be folded and opened relative to the rotating shaft body 10. The folding portion 20 can be, for example, a middle frame of an electronic device, which can be movably connected to the rotating shaft body 10, that is, the middle frame can move relative to the rotating shaft body 10 and fold and open under the action of the rotating shaft body 10. When the two folding portions 20 are folded relative to the rotating shaft body 10, the display panel is in a folded state. When the two folding portions 20 are opened relative to the rotating shaft body 10, the display panel is in a flattened state.

[0050] The back of the rotating shaft body 10 may be an arc surface, which constitutes a track. The folding parts 20 located on both sides of the rotating shaft body 10, namely the first folding part and the second folding part, can move along the track so that the first folding part and the second folding part are opened or folded.

[0051] Both folding parts 20, namely the first folding part and the second folding part, are provided with mounting slots 21. The mounting slots 21 pass through the first surface 201 and the second surface 202 of the folding parts 20. That is, the mounting slot 21 provided on the first folding part passes through the first surface 201 and the second surface 202 of the first folding part, and the mounting slot 21 provided on the second folding part passes through the first surface 201 and the second surface 202 of the second folding part. The first surface 201 can be the surface of the folding part 20 close to the rotating shaft body 10, and the second surface 202 can be the surface of the folding part 20 facing away from the rotating shaft body 10. When the folding assembly is used in an electronic device, the first surface 201 can be the front side of the folding part 20 (i.e., the surface close to the user during normal use), and the second surface 202 can be the back side of the folding part 20 (i.e., the surface facing away from the user during normal use). The flexible circuit board 30 passes through the mounting grooves of the first and second folding portions. The portion of the flexible circuit board 30 that passes through the folding portion 20 is used to connect to the circuit board inside the electronic device. The fixed sealing portion 40 is disposed within the mounting groove 21 to secure the flexible circuit board 30 and seal it to the mounting groove 21. This prevents dust, liquid, and the like from entering the interior of the electronic device through the flexible circuit board 30 and damaging the circuit board and other components, thereby ensuring the operational reliability of the electronic device. It is understood that the fixed sealing portion 40 can be completely located within the mounting groove 21 to secure the flexible circuit board 30 and seal it to the mounting groove 21. Of course, the fixed sealing portion 40 can also be partially located within the mounting groove 21, with another portion located outside the mounting groove 21. The fixed sealing portion 40 located within the mounting groove 21 secures the flexible circuit board 30 and seals it to the mounting groove 21.

[0052] In this way, the flexible circuit board 30 can be sealed without setting up any additional structures, and the structure is simpler. In addition, since the flexible circuit board 30 is sealed inside the folding part 20, no other space is occupied, making the structure of the folding component more compact, reducing the size of the folding component in the thickness direction, and thus helping to reduce the thickness of the electronic device using the folding component.

[0053] The fixed sealing portion 40 may be an integral structure, and the flexible circuit board 30 is provided through the fixed sealing portion 40. For example, the fixed sealing portion 40 is formed on the flexible circuit board 30 by an integral injection molding method. The fixed sealing portion 40 may also be a split structure. In an exemplary embodiment, Figures 1 to 3 The fixed sealing portion 40 includes a first clamping portion 41 and a second clamping portion 42. The first clamping portion 41 and the second clamping portion 42 can be, for example, plastic blocks. The first clamping portion 41 includes a first clamping surface 410, and the second clamping portion 42 includes a second clamping surface 420. The portion of the flexible circuit board 30 located in the mounting groove 21 is clamped between the first clamping surface 410 and the second clamping surface 420.

[0054] In this embodiment, combined with Figures 1 to 3 The first clamping portion 41 and the second clamping portion 42 are respectively located on opposite sides of the flexible circuit board 30 in the mounting groove 21. The first clamping portion 41 has a first clamping surface 410, and the second clamping portion 42 has a second clamping surface 420. In the mounting groove 21, the flexible circuit board 30 is clamped between the first clamping surface 410 and the second clamping surface 420. In this way, by providing the first clamping portion 41 and the second clamping portion 42, the fixed sealing portion 40 fixes the flexible circuit board 30 in the mounting groove 21.

[0055] For example, the first clamping portion 41 can be fixedly connected to the second clamping portion 42 by means of adhesive connection, thread connection, etc. It is understandable that the first clamping portion 41 and the second clamping portion 42 can also be fixedly connected to the folding portion 20 by means of adhesive connection, thread connection, etc.

[0056] In some possible embodiments, combined with Figure 2 and Figure 3 A second sealing adhesive layer 412 is provided between the first clamping portion 41 and the side wall of the mounting groove 21. The second sealing adhesive layer 412 can be, for example, double-sided tape, epoxy resin adhesive, hot melt adhesive, etc. provided on the first clamping portion 41 or the side wall of the mounting groove 21. Of course, a second sealing adhesive layer 412 can also be provided on both the first clamping portion 41 and the side wall of the mounting groove 21.

[0057] In some other possible embodiments, continue to combine Figure 2 and Figure 3 A third sealing adhesive layer 421 is provided between the second clamping portion 42 and the side wall of the mounting groove 21. Similarly, the third sealing adhesive layer 421 can be, for example, double-sided tape, epoxy resin glue, hot melt glue, etc. provided on the second clamping portion 42 or the side wall of the mounting groove 21. Of course, a third sealing adhesive layer 421 can also be provided on the side wall of the second clamping portion 42 or the mounting groove 21.

[0058] By providing the second sealing adhesive layer 412 and the third sealing adhesive layer 421 , a tight and seamless connection relationship can be formed between the first clamping portion 41 and the second clamping portion 42 and the folding portion 20 , so that the fixed sealing portion 40 can better fix and seal the installation groove 21 .

[0059] Of course, in other possible embodiments, other sealing members, such as foam, rubber blocks, sealing rings, etc., may also be provided between the first clamping portion 41 and the side wall of the mounting groove 21 and between the second clamping portion 42 and the side wall of the mounting groove 21 .

[0060] In an exemplary embodiment, referring to Figure 1Along the direction of the rotating shaft body 10 toward the folding portion 20, that is, along the direction of the rotating shaft body 10 toward the first folding portion or the second folding portion respectively, the flexible circuit board 30 passes through the mounting groove 21 from the first surface 201 to the second surface 202.

[0061] Along the direction of the folded portion 20 on one side of the rotating shaft body 10, for example, the first folded portion, the first clamping surface 410 and the second clamping surface 420 of the fixed sealing portion 40 in the first folded portion are inclined toward the second surface 202 of the first folded portion. Along the direction of the folded portion 20 on the other side of the rotating shaft body 10, for example, the second folded portion, the first clamping surface 410 and the second clamping surface 420 of the fixed sealing portion 40 in the second folded portion are inclined toward the second surface 202 of the second folded portion.

[0062] In this embodiment, Figure 1 As shown, due to the foldable nature and complex internal structure of a foldable electronic device, the flexible circuit board 30 needs to pass through various through-holes and gaps between the hinge body 10 and the folding portion 20 to achieve electrical connection with the circuit board in the electronic device. Therefore, the flexible circuit board 30 is bent in a conformal manner within the cavity between the hinge body 10 and the folding portion 20. Inclining the first clamping surface 410 and the second clamping surface 420 toward the second surface 202 of the folding portion 20 not only helps maintain the bending shape and posture control of the flexible circuit board 30, but also minimizes the degree of bending of the flexible circuit board 30 within the cavity, thereby reducing the risk of breakage of the flexible circuit board 30. Furthermore, the flexible circuit board 30 can be fixed obliquely within the mounting groove 21, which helps increase the fixing area of ​​the flexible circuit board 30, thereby improving the reliability of the connection between the flexible circuit board 30 and the fixed sealing portion 40.

[0063] For example, the inclination angle between the first clamping surface 410 and the second clamping surface 420 and the second surface 202 can be set as needed, for example, it can be 45°, as long as it is conducive to the flexible circuit board 30 to maintain the bending shape and ensure the connection reliability of the flexible circuit board 30 and the fixed sealing part 40.

[0064] In an exemplary embodiment, in combination Figure 2 and Figure 3 An adhesive layer 31 is provided on the side of the flexible circuit board 30 facing the second clamping portion 42. The adhesive layer 31 can be, for example, double-sided tape, adhesive foam, hot melt adhesive, etc. The adhesive layer 31 is bonded to the second clamping surface 420 to fix the flexible circuit board 30 to the second clamping portion 42.

[0065] In other possible embodiments, the adhesive layer 31 may also be provided on the second clamping surface 420 , or the adhesive layer 31 may be provided on both the side of the flexible circuit board 30 facing the second clamping portion 42 and the second clamping surface 420 .

[0066] A reinforcing layer 32 is provided on the other side of the flexible circuit board 30, i.e., the side of the flexible circuit board 30 facing the first clamping portion 41. The reinforcing layer 32 abuts the first clamping surface 410 to securely connect the flexible circuit board 30 to the first clamping portion 41. The reinforcing layer 32 may, for example, be a reinforcement plate added to the flexible circuit board 30. The reinforcement plate may be made of metal or resin, thereby enhancing the mechanical strength of the flexible circuit board 30 and facilitating the secure attachment of the flexible circuit board 30 to the fixed sealing portion 40. It is understood that the reinforcing layer 32 may also be provided on the side of the flexible circuit board 30 facing the second clamping portion 42, or on both opposing sides of the flexible circuit board 30.

[0067] For example, the reinforcement layer 32 may be fixedly connected to the flexible circuit board 30 by gluing, threading, or the like.

[0068] In an exemplary embodiment, in combination Figure 2 and Figure 3 A first sealant layer 411 is provided between the first clamping surface 410 and the reinforcing layer 32, that is, the first sealant layer 411 can be provided on the surface of the reinforcing layer 32 facing the first clamping surface 410 or on the first clamping surface 410, or the first sealant layer 411 is provided on both the surface of the reinforcing layer 32 facing the first clamping surface 410 and the first clamping surface 410, so that the first clamping surface 410 is sealed and connected to the reinforcing layer 32 through the first sealant layer 411 to fix the reinforcing layer 32 to the first clamping portion 41.

[0069] Illustratively, the first sealant layer 411 may be the same as or different from the second sealant layer 412 and the third sealant layer 421 , and may be, for example, double-sided tape, epoxy resin adhesive, hot melt adhesive, or the like.

[0070] In one embodiment, reference Figure 2 、 Figures 4 to 6 , along the direction perpendicular to the rotating shaft body 10 toward the folding portion 20, the first clamping portion 41 is provided with a first fixing portion 413 at both ends, and the second clamping portion 42 is provided with a second fixing portion 422 at both ends. The two folding portions 20, namely the first folding portion and the second folding portion, are both provided with a fixing structure 22. The first fixing portion 413 and the second fixing portion 422 cooperate with the fixing structure 22 to fix the first clamping portion 41 and the second clamping portion 42 to the folding portion 20. For example, the first fixing portion 413 and the second fixing portion 422 on the first folding portion cooperate with the fixing structure 22 on the first folding portion to fix the first clamping portion 41 and the second clamping portion 42 to the first folding portion. The first fixing portion 413 and the second fixing portion 422 on the second folding portion cooperate with the fixing structure 22 on the second folding portion to fix the first clamping portion 41 and the second clamping portion 42 to the second folding portion.

[0071] In some possible embodiments, the first fixing portion 413 , the second fixing portion 422 and the fixing structure 22 are all made of sealant, and the first clamping portion 41 , the second clamping portion 42 and the folding portion 20 are connected by gluing.

[0072] In other possible embodiments, the first fixing portion 413 and the second fixing portion 422 are both snap-fitting protrusions, the fixing structure 22 is a snap-fitting slot, and the snap-fitting protrusions can be snapped into the snap-fitting slot to achieve a fixed connection between the first clamping portion 41, the second clamping portion 42, and the folding portion 20. Of course, the first fixing portion 413 and the second fixing portion 422 can also be snap-fitting slots, and the fixing structure 22 is two snap-fitting protrusions provided on the folding portion 20.

[0073] In other possible embodiments, the first fixing portion 413 and the second fixing portion 422 are both fixing through holes with internal threads, and the fixing structure 22 is a connecting column with external threads, which can be screwed into the fixing through holes to fix the first clamping portion 41 and the second clamping portion 42 on the folding portion 20.

[0074] In an exemplary embodiment, in combination Figure 3 、 Figure 6 and Figure 7 The first clamping portion 41 includes a first clamping body 414 and a first insert 415 embedded in the first clamping body 414. The first insert 415 can be completely embedded in the first clamping body 414, i.e., the first clamping surface 410 is the surface of the first clamping body 414. Alternatively, the first insert 415 can be partially embedded in the first clamping body 414, i.e., the first clamping surface 410 is the surface of the first insert 415. The first clamping body 414 can be made of, for example, plastic, rubber, etc., while the first insert 415 can be made of, for example, stainless steel, aluminum alloy, etc. The first clamping body 414 is positioned within the mounting groove 21, securely connected to the flexible printed circuit board 30, and sealed to the mounting groove 21. Both ends of the first insert 415 extend out of the mounting groove 21 through the first clamping body 414 in a direction perpendicular to the rotating shaft 10 toward the folding portion 20. The protruding portion of the first insert 415 constitutes the first fixing portion 413.

[0075] For example, the first clamping body 414 and the first insert 415 may be separate structures, that is, a slot adapted to the first insert 415 may be provided on the first clamping body 414 , and the first insert 415 may be placed in the first clamping body 414 .

[0076] Of course, in other embodiments, reference Figure 7The first clamping body 414 and the first insert 415 may also be an integral structure. For example, the first clamping body 414 may be formed on the first insert 415 by an injection molding process, that is, a plurality of first through holes 4151 are provided on the first insert 415, the first insert 415 having the plurality of first through holes 4151 is placed in a mold, plastic or plastic is injected into the mold cavity, and after solidification, it is removed to obtain the integrally formed first clamping portion 41, wherein the first clamping body 414 fills the first through holes 4151 to secure the first insert 415 to the first clamping body 414.

[0077] For example, the shape, size, distribution and number of the first through holes 4151 can be set as needed, as long as the first insert 415 can be embedded in the first clamping body 414. For example, six circular holes can be set on the first insert 415 at intervals along the extension direction of the first insert 415.

[0078] In other possible embodiments, the first insert 415 without the first through hole 4151 is directly placed into the mold, plastic or glue is injected into the mold cavity, and taken out after solidification to obtain the first clamping portion 41 .

[0079] In another exemplary embodiment, in combination Figure 3 、 Figure 6 and Figure 8 The second clamping portion 42 includes a second clamping body 423 and a second insert 424 embedded in the second clamping body 423. The second insert 424 can be completely embedded in the second clamping body 423, with the second clamping surface 420 being the surface of the second clamping body 423. Alternatively, the second insert 424 can be partially embedded in the second clamping body 423, with the second clamping surface 420 being the surface of the second insert 424. The second clamping body 423 can be made of, for example, plastic, rubber, or the like, while the second insert 424 can be made of, for example, stainless steel, aluminum alloy, or the like. The second clamping body 423 is positioned within the mounting groove 21, securely connected to the flexible printed circuit board 30, and hermetically sealed therewith. Both ends of the second insert 424 extend out of the mounting groove 21, perpendicular to the rotating shaft 10 and toward the folding portion 20, through the second clamping body 423. The protruding portion of the second insert 424 constitutes the second fixing portion 422.

[0080] For example, the second clamping body 423 and the second insert 424 may be separate structures, that is, a slot adapted to the second insert 424 may be provided on the second clamping body 423 , and the second insert 424 may be placed in the second clamping body 423 .

[0081] Of course, in other embodiments, reference Figure 8The second clamping body 423 and the second insert 424 may also be an integral structure. For example, the second clamping body 423 may be formed on the second insert 424 through an injection molding process, i.e., a plurality of second through holes 4241 are provided on the second insert 424. The second insert 424 having the plurality of second through holes 4241 is placed in a mold, and plastic or plastic is injected into the mold cavity. After solidification, the molded second clamping portion 42 is obtained, wherein the second clamping body 423 fills the second through holes 4241 to secure the second insert 424 to the second clamping body 423.

[0082] For example, the shape, size, distribution and number of the second through holes 4241 can be set as needed, as long as the second insert 424 can be embedded in the second clamping body 423. For example, six circular holes can be set on the second insert 424 along the extension direction of the second insert 424.

[0083] In other possible embodiments, the second insert 424 without the second through hole 4241 is directly placed into the mold, plastic or glue is injected into the mold cavity, and taken out after solidification to obtain the second clamping portion 42 .

[0084] In an exemplary embodiment, referring to Figure 6 The first fixing portion 413 is provided with a first fixing hole 4131 and a first positioning hole 4132. The second fixing portion 422 is provided with a second fixing hole 4221 corresponding to the first fixing hole 4131 and a second positioning hole 4222 corresponding to the first positioning hole 4132. The fixing structure 22 includes a third fixing hole 221 and a positioning post 222 provided on the folding portion 20. The positioning post 222 cooperates with the first positioning hole 4132 and the second positioning hole 4222. The first fixing hole 4131, the second fixing hole 4221, and the third fixing hole 221 are fixedly connected by a fastener 60.

[0085] In this embodiment, Figure 6 As shown, each first fixing hole 4131 is correspondingly provided with a first positioning hole 4132, each second fixing hole 4221 is correspondingly provided with a second positioning hole 4222, and each third fixing hole 221 is correspondingly provided with a positioning post 222, wherein the first fixing holes 4131, the second fixing holes 4221, and the third fixing holes 221 correspond one to one, and fasteners 60, such as screws, bolts, pins, etc., are passed through the first fixing holes 4131, the second fixing holes 4221, and the third fixing holes 221 to fix the first clamping portion 41, the second clamping portion 42 to the folding portion 20. The first positioning holes 4132, the second positioning holes 4222, and the positioning posts 222 correspond one to one, and the positioning posts 222 can be interference-fitted with the first positioning holes 4132 and the second positioning holes 4222 to fix the first clamping portion 41 and the second clamping portion 42 to the folding portion 20.

[0086] For example, the shapes of the first fixing hole 4131 , the second fixing hole 4221 , and the third fixing hole 221 can be set as needed, for example, they can be circular, square, elliptical, etc., which is not limited in this embodiment.

[0087] For example, the shapes of the first positioning hole 4132 , the second positioning hole 4222 and the positioning post 222 can be set as needed, as long as the positioning post 222 can be matched with the first positioning hole 4132 and the second positioning hole 4222 .

[0088] In one embodiment, combining Figures 6 to 8 The second surface 202 of the folding portion 20 is provided with an inner recess 2021 at both ends of the mounting groove 21. The inner recess 2021 can be formed by a depression of part of the second surface 202. The side wall of the inner recess 2021 is connected with the mounting groove 21, that is, the first clamping body 414 and the second clamping body 423 can be located in the mounting groove 21 and sealed with the side wall of the mounting groove 21. The first fixing portion 413 extending out of the first clamping body 414 and the second fixing portion 422 extending out of both ends of the second clamping body 423 can be located in the inner recess 2021, wherein the third fixing hole 221 and the positioning column 222 are provided in the inner recess 2021 to fix the first clamping portion 41, the second clamping portion 42 and the folding portion 20.

[0089] By providing the inner recess 2021 , the structural features of the folding portion 20 and the mounting slot 21 are fully utilized, which not only ensures the miniaturization of the internal space of the electronic device but also helps to improve the space utilization of the electronic device, making the internal structure of the electronic device compact.

[0090] In an exemplary embodiment, in combination Figure 2 、 Figure 5 and Figure 9 At least one first clamping portion 43 is provided on the fixed sealing portion 40, and a second clamping portion 210 corresponding to the first clamping portion 43 is provided on the side wall of the mounting groove 21. The first clamping portion 43 can be clamped and matched with the second clamping portion 210 to seal the fixed sealing portion 40 and the mounting groove 21.

[0091] In other possible embodiments, one of the first engaging portion 43 and the second engaging portion 210 is a slot, and the other is a protrusion, which can be inserted into the slot to fix the fixed sealing portion 40 to the installation slot 21. Of course, the first engaging portion 43 and the second engaging portion 210 can also both be slots that can be plugged into each other to fix the fixed sealing portion 40 to the installation slot 21.

[0092] In an exemplary embodiment, in combination Figure 2 、 Figure 5 and Figure 9 The mounting groove 21 includes a first side wall 211 opposite to the first clamping portion 41 of the fixed sealing portion 40, and the second clamping portion 210 includes a clamping groove (not shown in the figure) provided on the first side wall 211. For example, the clamping groove can be provided on the first side wall 211 near the opening of the mounting groove 21. The first clamping portion 43 includes a first protrusion 431 provided on the first clamping portion 41. The first protrusion 431 cooperates with the clamping groove, that is, the first protrusion 431 is clamped into the clamping groove to tightly fit the first clamping portion 41 with the mounting groove 21, thereby forming a tighter contact and seal.

[0093] In an exemplary embodiment, in combination Figure 2 、 Figure 5 and Figure 9 The mounting groove 21 includes a second side wall 212 arranged opposite to the first side wall 211 . The second side wall 212 is provided with a second protrusion 2121 . The second clamping portion 42 of the fixed sealing portion 40 abuts against both the second side wall 212 and the second protrusion 2121 .

[0094] In this embodiment, combined with Figure 2 、 Figure 5 and Figure 9 The inner side surface of the second protrusion 2121, that is, the surface of the second protrusion 2121 facing the second clamping portion 42, forms an inverted L-shape with the side wall surface of the second side wall 212. By setting the second clamping portion 42 to abut against the second side wall 212 and the second protrusion 2121, it can be ensured that the second clamping portion 42 forms a sealed connection with the side wall of the mounting groove 21.

[0095] An exemplary embodiment of the present disclosure provides an electronic device, Figure 1 The electronic device includes the above-mentioned folding assembly and a housing (not shown in the figure) arranged on the back of the folding assembly and located on both sides of the rotating shaft body 10. The housing can be, for example, a shell of the electronic device. A storage space (not shown in the figure) is formed between the housing and the two folding parts 20, that is, a storage space is formed between the housing and the first folding part and the second folding part. A circuit board (not shown in the figure) is arranged in the storage space of the first folding part and / or the second folding part. The circuit board is provided with electronic components. The flexible circuit board 30 passes through the installation groove 21 and is connected to the circuit board. In this way, while achieving internal circuit connection of the electronic device, by providing a fixed sealing part 40 in the installation groove 21 to fix the flexible circuit board 30 and seal it with the installation groove 21, the flexible circuit board 30 can be sealed without the need for additional structures, and the structure is simpler. In addition, since the sealing of the flexible circuit board 30 is achieved inside the folding part 20, no other space is occupied, making the structure of the folding assembly more compact, reducing the size of the folding assembly in the thickness direction, and thus helping to reduce the thickness of the electronic device using the folding assembly.

[0096] Exemplarily, the electronic device can be any bendable device, for example, the electronic device can be a mobile device such as a mobile phone, a tablet computer, a laptop computer, a PDA, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), etc. It can also be a non-mobile device such as a personal computer (PC), a television (TV), an ATM or a self-service machine, etc.

[0097] In other embodiments, reference Figure 1 and Figure 10 The electronic device further comprises a support plate 50 provided on the front of the folding assembly. The two folding parts 20, namely the first folding part and the second folding part, each comprise a folding body 23 and a support part 24 provided on the folding body 23 away from the rotating shaft 10. The mounting groove 21 is provided on the folding body 23. An accommodating space is formed between the support part 24 and the housing to accommodate the circuit board. When the electronic device is in a fully opened state, such as Figure 10 As shown, the support portion 24 is flush with the front surface of the support plate 50 and together they form a support surface for supporting the folding screen 70. Furthermore, the support plate can isolate the folding screen 70 from the flexible circuit board 30, preventing friction between the flexible circuit board 30 and the folding screen 70 due to movement during the folding process, thereby protecting the folding screen 70 and the flexible circuit board 30 from damage.

[0098] In an exemplary embodiment, referring to Figure 10 The support plate 50 includes a first support plate 51, a second support plate 52 and a third support plate 53, wherein the second support plate 52 is located on the front of the rotating shaft body 10, and the flexible circuit board 30 located between the second support plate 52 and the rotating shaft body 10 can be fixedly connected to the second support plate 52 or the rotating shaft body 10. The first support plate 51 and the third support plate 53 are respectively located on both sides of the second support plate 52 and are movably connected to the second support plate 52, and can move with the folding state of the electronic device.

[0099] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0100] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A folding assembly, characterized in that: The folding assembly comprises: Rotating shaft body; A first folding portion and a second folding portion are respectively provided on both sides of the rotating shaft body, the first folding portion and the second folding portion can be folded and unfolded relative to the rotating shaft body, and the first folding portion and the second folding portion are both provided with a mounting slot, the mounting slot passing through the first surface and the second surface opposite to each other of the first folding portion or the second folding portion; a flexible circuit board passing through the mounting slots of the first folding portion and the second folding portion; The fixing sealing portion is arranged in the installation groove and is used to fix the flexible circuit board and is sealed to the installation groove.

2. The folding assembly according to claim 1, characterized in that: The fixed sealing portion includes a first clamping portion and a second clamping portion, the first clamping portion includes a first clamping surface, the second clamping portion includes a second clamping surface, and the portion of the flexible circuit board located in the mounting groove is clamped between the first clamping surface and the second clamping surface.

3. The folding assembly according to claim 2, characterized in that: Along the direction of the rotating shaft toward the first folding portion or the second folding portion, the flexible circuit board passes through the first surface of the first folding portion or the second folding portion through the mounting slot and out of the second surface of the first folding portion or the second folding portion; Along the direction from the rotating shaft to the first folded portion, the first clamping surface and the second clamping surface of the fixed sealing portion in the first folded portion are inclined toward the second surface of the first folded portion; Along the direction from the rotating shaft to the second folded portion, the first clamping surface and the second clamping surface of the fixed sealing portion in the second folded portion are inclined toward a direction approaching the second surface of the second folded portion.

4. The folding assembly according to claim 2, characterized in that: An adhesive layer is provided on one side of the flexible circuit board, and a reinforcement layer is provided on the other side of the flexible circuit board. The adhesive layer is bonded to the second clamping surface, and the reinforcement layer is in contact with the first clamping surface.

5. The folding assembly according to claim 4, characterized in that: A first sealing adhesive layer is provided between the first clamping surface and the reinforcement layer, and the first clamping surface is sealed and connected to the reinforcement layer through the first sealing adhesive layer.

6. The folding assembly according to claim 2, characterized in that: A second sealant layer is provided between the first clamping portion and the side wall of the installation groove; and / or, A third sealant layer is provided between the second clamping portion and the side wall of the installation groove.

7. The folding assembly according to any one of claims 2 to 6, characterized in that: First fixing parts are provided at both ends of the first clamping part, second fixing parts are provided at both ends of the second clamping part, and fixing structures are provided on the first folding part and the second folding part. The first fixing part and the second fixing part on the first folding part cooperate with the fixing structure on the first folding part to fix the first clamping part, the second clamping part and the first folding part together. The first fixing part and the second fixing part on the second folding part cooperate with the fixing structure on the second folding part to fix the first clamping part, the second clamping part and the second folding part together.

8. The folding assembly according to claim 7, characterized in that: The first clamping portion includes a first clamping body and a first insert embedded in the first clamping body, the first clamping body is located in the installation slot, both ends of the first insert extend out of the installation slot through the first clamping body, and the extended portion of the first insert constitutes the first fixing portion; and / or, The second clamping portion includes a second clamping body and a second insert embedded in the second clamping body. The second clamping body is located in the installation slot. Both ends of the second insert extend out of the installation slot through the second clamping body. The extended portion of the second insert constitutes the second fixing portion.

9. The folding assembly according to claim 8, characterized in that: The first clamping body is formed on the first insert by an injection molding process, the first insert is provided with a plurality of first through holes, and the first clamping body fills each of the first through holes; and / or, The second clamping body is formed on the second insert by an injection molding process. The second insert is provided with a plurality of second through holes, and the second clamping body fills each of the second through holes.

10. The folding assembly according to claim 7, characterized in that: The first fixing portion is provided with a first fixing hole and a first positioning hole, and the second fixing portion is provided with a second fixing hole corresponding to the position of the first fixing hole and a second positioning hole corresponding to the position of the first positioning hole; The fixing structure includes a third fixing hole and a positioning column arranged on the first folding part and the second folding part. The positioning column cooperates with the first positioning hole and the second positioning hole. The first fixing hole, the second fixing hole and the third fixing hole are fixedly connected by fasteners.

11. The folding assembly according to claim 10, characterized in that: The second surface is provided with inner recesses at both ends of the installation slot, the sidewalls of the inner recesses are connected to the installation slot, and the third fixing hole and the positioning column are provided in the inner recesses.

12. The folding assembly according to any one of claims 1 to 6, characterized in that: At least one first clamping portion is provided on the fixed sealing portion, and a second clamping portion corresponding to the first clamping portion is provided on the side wall of the installation groove, and the first clamping portion is clamped and matched with the second clamping portion.

13. The folding assembly according to claim 12, characterized in that: The mounting groove includes a first side wall opposite to the first clamping portion of the fixed sealing portion, the second clamping portion includes a clamping groove arranged on the first side wall, the first clamping portion includes a first protrusion arranged on the first clamping portion, and the first protrusion cooperates with the clamping groove.

14. The folding assembly according to claim 13, characterized in that: The installation groove includes a second side wall arranged opposite to the first side wall, the second side wall is provided with a second protrusion, and the second clamping portion of the fixed sealing portion abuts against both the second side wall and the second protrusion.

15. An electronic device, characterized in that: The electronic device includes a folding component as described in any one of claims 1 to 14 and a shell arranged on the back of the folding component and located on both sides of the rotating shaft body, wherein an accommodating space is formed between the shell and the first folding part and the second folding part, and a circuit board is arranged in the accommodating space of the first folding part and / or the second folding part, and the flexible circuit board penetrates into the accommodating space through the mounting groove and is connected to the circuit board.

16. The electronic device according to claim 15, characterized in that The electronic device also includes a support plate arranged on the front of the folding component, the first folding part and the second folding part both include a folding body and a support part arranged on the side of the folding body away from the rotating shaft body, the mounting groove is arranged on the folding body, and the accommodating space is formed between the support part and the outer shell. The support part is flush with the front of the support plate and together constitutes a support surface for supporting the folding screen.

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