Foldable electronic device

Abstract

The invention provides foldable electronic equipment, relates to the technical field of electronic products, and can realize reliable electric connection between a first main body part and a second main body part. The foldable electronic equipment comprises a supporting device and a first electric connecting piece, the supporting device comprises a first main body part, a second main body part and a folding mechanism, the first main body part and the second main body part are connected to the two sides of the folding mechanism respectively, and the supporting device can be switched between an unfolded state and a folded state; the first main body part comprises a first circuit board, and the second main body part comprises a second circuit board; the two ends of the first electric connecting piece are electrically connected to the first circuit board and the second circuit board respectively, the first electric connecting piece comprises an elastic section, the elastic section comprises a first insulating piece and a first conductive piece, and when the foldable electronic equipment is switched between an unfolded state and a folded state, the first insulating piece can elastically deform in the first direction; the first conductive member is fixed to the first insulating member, and the first conductive member extends in a winding manner along a first direction.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to a foldable electronic device. Background Technology

[0002] Currently, foldable electronic devices have emerged to address the issues of large size and inconvenience in carrying traditional tablet devices. Foldable electronic devices typically include a first main body, a second main body, and a folding mechanism connecting the first and second main bodies. This folding mechanism enables relative or synchronous movement between the first and second main bodies, allowing the foldable electronic device to switch between an unfolded and folded state.

[0003] Since both the first and second main body sections include electronic components, how to achieve a reliable electrical connection between the first and second main body sections is one of the technical problems that urgently needs to be solved. Summary of the Invention

[0004] This application provides a foldable electronic device that enables a reliable electrical connection between a first main body and a second main body. To achieve the above objective, the embodiments of this application adopt the following technical solution:

[0005] This application provides a foldable electronic device, including a support device and a first electrical connector. The support device includes a first main body, a second main body, and a folding mechanism. The first main body and the second main body are respectively connected to both sides of the folding mechanism. The foldable electronic device can switch between an unfolded state and a folded state. The first main body includes a first circuit board, and the second main body includes a second circuit board. The two ends of the first electrical connector are respectively electrically connected to the first circuit board and the second circuit board. The first electrical connector includes an elastic segment, which includes a first insulating member and a first conductive member. When the foldable electronic device switches between the unfolded state and the folded state, the first insulating member can elastically deform along a first direction. The first conductive member is fixed to the first insulating member, and the first conductive member extends meanderingly along the first direction.

[0006] The foldable electronic device in this embodiment, by providing an elastic segment in the first electrical connector, can adapt to changes in the shape of the foldable electronic device through deformation of the elastic segment, thereby reducing the tensile stress on the first electrical connector and improving its reliability, which in turn improves the reliability of the electrical connection between the first and second circuit boards. Furthermore, by providing the elastic segment, the redundant length of the first electrical connector can be reduced, thus reducing its overall length, resistance, and space occupation. Additionally, it facilitates a flattened design for the first electrical connector, further reducing its volume and space occupation, and consequently, further reducing the size of the foldable electronic device, achieving a miniaturized design.

[0007] In one possible implementation, the first insulating member has a first cavity, and the first conductive member is fixed inside the first cavity. This allows the first insulating member to protect the first conductive member, preventing friction or contact between the first conductive member and internal metal structures of the foldable electronic device, such as the first or second mid-frame.

[0008] In one possible implementation, the first conductive element extends along a first direction and folds back along a second direction. The second direction is perpendicular to the first direction, and both the first and second directions are perpendicular to the thickness direction of the first insulating element. This facilitates a flattened design of the elastic segment, reduces its thickness and volume, and consequently reduces the space occupied by the first electrical connector.

[0009] In one possible implementation, the first insulating member includes opposing first and second portions, with a first recessed groove on the first portion and / or a second recessed groove on the second portion, to form a first cavity between the first and second portions. This helps to reduce the processing difficulty of the first insulating member.

[0010] In another possible implementation, the first insulating member includes a first split portion, and the first conductive member is laid on one side surface of the first split portion. This helps to reduce the thickness of the elastic segment and thus reduces the space occupied by the first electrical connector.

[0011] In one possible implementation, the first insulating element is in the form of a woven mesh. The woven mesh has excellent tensile and resilience characteristics and a long bending life, which can provide elastic deformation recovery force for the elastic segment, allowing the first electrical connector to adapt well to the shape changes of the foldable electronic device in different states; moreover, the woven mesh is relatively thin and light, occupying less space in the whole device, which is conducive to realizing the thin design of the foldable electronic device.

[0012] In one possible implementation, the first insulating member has a first stress relief hole that penetrates a first outer surface and a second outer surface opposite to each other on the first insulating member. The arrangement direction of the first and second outer surfaces is perpendicular to the first direction. The orthographic projection of the first stress relief hole on the first outer surface does not overlap with the orthographic projection of the first conductive member on the first outer surface. This reduces the stiffness of the first insulating member, decreasing its resistance to elastic deformation. Therefore, a smaller force can be applied to the elastic segment to achieve tensile deformation, which improves the folding feel of the foldable electronic device. Simultaneously, it also helps to reduce the thickness of the first insulating member, thereby reducing the overall thickness of the elastic segment.

[0013] In one possible implementation, the first insulating member includes a first outer surface and a second outer surface facing away from each other. A first conductive member is located between the first and second outer surfaces. A first shielding layer is provided on the first outer surface, and a second shielding layer is provided on the second outer surface. The first and second shielding layers are electrically connected. In this way, the first and second shielding layers can form an external ground network for the first electrical connector. On the one hand, this isolates the first conductive member from external signals, reducing interference from external signals to the first conductive member, and also reducing interference from the first conductive member to external signals, thus improving the signal quality of the first electrical connector. On the other hand, it also facilitates impedance matching of the first conductive member, thereby improving the signal stability of the first electrical connector.

[0014] In one possible implementation, the first conductive element includes a first ground layer, which is electrically connected to a first shielding layer. This further reduces interference from external signals to the first conductive element and further reduces interference from the first conductive element to the outside world, thereby further improving the signal quality of the first electrical connector.

[0015] In one possible implementation, the first shielding layer is mesh-like. This reduces the deformation of the first shielding layer, thereby effectively reducing the risk of it being torn.

[0016] In one possible implementation, the first insulating member has a first metallized via, with its two ends electrically connected to a first shielding layer and a second shielding layer, respectively. In its natural state, the angle between the central axis of the first metallized via and a first direction is greater than 0 degrees and less than 90 degrees. This reduces the deformation amplitude of the first metallized via during stretching, effectively preventing cracking of the metal plating in the first metallized via, and thus improving the reliability of the electrical connection between the first and second shielding layers.

[0017] In one possible implementation, the first outer surface includes a plurality of first protrusions arranged in a first direction, the first protrusions arching toward a direction opposite to the second outer surface. This reduces the deformation of the first shielding layer during stretching, thereby effectively reducing the risk of the first shielding layer being torn.

[0018] In one possible implementation, the first electrical connector includes a first segment, and when the foldable electronic device is in its unfolded state, the orthographic projection of the first segment onto a first plane lies within the orthographic projection of the first support member onto the first plane; wherein the first plane is perpendicular to the thickness direction of the base. A positional relationship between the first electrical connector and the support device is provided.

[0019] In one possible implementation, the first electrical connector includes a first intermediate section, the orthographic projection of which onto the first plane lies within the orthographic projection of the base onto the first plane. A positional relationship between the first electrical connector and the support device is provided.

[0020] In one possible implementation, at least one of the first segment and the first intermediate segment includes a resilient segment. A specific structure for a first electrical connector is provided.

[0021] In one possible implementation, the first segment includes an elastic segment, and a first conductive element in the first segment extends within a second plane perpendicular to the thickness direction of the first support member. For example, the stretchable direction of the elastic segment in the first segment is parallel to the width direction of the first support member. This facilitates reducing the thickness of the elastic segment in the first segment, thereby reducing the combined thickness of the first segment and the first support member, and consequently, enabling a thinner design for the foldable electronic device.

[0022] In one possible implementation, the first segment includes a first left-side portion and a first right-side portion, with the first right-side portion located between the first left-side portion and the first middle segment, and the first right-side portion being formed as an elastic segment. In this way, when the foldable electronic device switches between an unfolded state and a folded state, the expansion and contraction of the first right-side portion can adapt to changes in the gap between the first support member and the middle support member, which helps to prevent the first electrical connector from breaking, thereby improving the reliability of the first electrical connector.

[0023] In one possible implementation, at least a portion of the first left-side portion is fixed to the first support member. Since the first right-side portion is connected to the first left-side portion, by fixing at least a portion of the first left-side portion to the first support member, on the one hand, when the first support member rotates relative to the base, the first support member can drive the first left-side portion to move together, thereby causing the first right-side portion to deform. This allows the first right-side portion to deform promptly during the folding process of the foldable electronic device, adapting to changes in the foldable electronic device's shape. This helps prevent the first electrical connector from breaking due to stretching, thus improving the reliability of the first electrical connector. On the other hand, since the portion of the first left-side portion fixed to the first support member does not need to deform during the switching between the unfolded and folded states of the foldable electronic device, at least a portion of the conductive elements in the first left-side portion does not need to be redundant. This helps reduce the overall length and redundant length of the conductive elements in the first electrical connector, thereby reducing the resistance and insertion loss of the first electrical connector, reducing impedance fluctuations, improving insertion loss consistency, increasing battery charging efficiency, and reducing grounding impedance.

[0024] In one possible implementation, at least a portion of the first segment is fixed to the first support member. Since the first support member is positioned close to the foldable screen, the distance between the first support member and the foldable screen is small. Fixing at least a portion of the first segment to the first support member helps reduce the distance between the first segment and the foldable screen, making the bending radius of the first electrical connector closer to the bending radius of the foldable screen. This further reduces the overall length of the first electrical connector, and only a small redundancy is needed to meet the bending and stretching requirements of the first electrical connector. This, in turn, helps reduce the resistance and insertion loss of the first electrical connector and minimizes its space occupation, thus facilitating the thinner design of the foldable electronic device.

[0025] In one possible implementation, the first left-hand portion is formed as an elastic segment. This reduces the overall deformation of the first segment, which helps improve the reliability of the first electrical connector.

[0026] In one possible implementation, at least a portion of the first intermediate section can deform during the switching between an unfolded and folded state of the foldable electronic device. That is, at least a portion of the first intermediate section is not fixed relative to the hinge cover. Specifically, a portion of the first intermediate section can deform, or the entire first intermediate section can deform. A specific structure for the first intermediate section is provided.

[0027] In one possible implementation, at least a portion of the first intermediate segment is fixed to the base. A specific structure for the first intermediate segment is provided.

[0028] In one possible implementation, the foldable electronic device includes a foldable screen disposed on a support device; at least a portion of a first intermediate section arches in a direction away from the foldable screen. This increases the length of the first intermediate section, ensures sufficient deformation space for the first electrical connector, reduces stress on the first intermediate section, and thus helps prevent breakage of the first intermediate section.

[0029] In one possible implementation, the first intermediate segment is a cable or a flexible circuit board, or the first intermediate segment is formed as an elastic segment. This facilitates deformation of the first intermediate segment.

[0030] In one possible implementation, the foldable electronic device includes a foldable screen disposed on a supporting device; a first intermediate section includes a first surface and a second surface facing away from each other, the first surface facing away from the foldable screen; the first intermediate section is provided with at least one of a second stress relief hole and a third stress relief hole, the second stress relief hole penetrating the first surface; the third stress relief hole penetrating the second surface. This reduces the stiffness of the first intermediate section, decreasing its resistance to elastic deformation and facilitating bending deformation of the first intermediate section.

[0031] In one possible implementation, the first intermediate segment includes a second left portion, a middle portion, and a second right portion connected sequentially, with the second left portion located between the middle portion and the first segment; the second left portion is formed as an elastic segment, and the middle portion is fixed to the base. This allows, on the one hand, the deformation of the second left portion to accommodate changes in the gap between the first support member and the intermediate support member; on the other hand, it helps to further reduce the overall length and redundant length of the first electrical connector, thereby reducing the resistance and insertion loss of the first electrical connector, reducing impedance fluctuations, improving insertion loss consistency, increasing battery charging efficiency, and reducing grounding impedance; furthermore, it facilitates control over the bending path and bending shape of the first electrical connector, thus reducing the space occupied by the first electrical connector.

[0032] In one possible implementation, the first electrical connector includes a first bendable segment, and the base includes an intermediate support member with a first gap between the intermediate support member and the first support member. When the foldable electronic device is in the unfolded state, the orthographic projection of the first bendable segment in the first plane overlaps with the orthographic projection of the first gap in the first plane. During the switching between the unfolded and folded states of the foldable electronic device, the first bendable segment can be bent and stretched. In this way, the deformation of the first bendable segment can adapt to changes in the size and shape of the foldable electronic device.

[0033] In one possible implementation, the first bendable segment is an elastic segment. This allows the foldable electronic device to adapt to changes in size and shape through the stretching and contraction of the first bendable segment.

[0034] In one possible implementation, the first bendable segment is a flexible circuit board or cable. That is, the first bendable segment does not include a first insulating element or a second insulating element. This improves the bending performance of the first bendable segment, thereby helping to prevent the conductive components in the first bendable segment from breaking.

[0035] In one possible implementation, a second gap exists between the first main body and the first support member; the first electrical connector includes a first deformable segment. When the foldable electronic device is in the unfolded state, the orthographic projection of the first deformable segment in the first plane overlaps with the orthographic projection of the second gap in the first plane. When the foldable electronic device switches between the unfolded and folded states, the first deformable segment can deform. In this way, the deformation of the first deformable segment can adapt to changes in the size of the gap between the first main body and the first support member, which helps to prevent the first electrical connector from breaking, thereby improving the reliability of the first electrical connector.

[0036] In one possible implementation, the first deformable segment is an elastic segment. A specific structure for the first deformable segment is provided.

[0037] In one possible implementation, the first support member has a first recessed groove that penetrates one side surface of the first support member in the thickness direction, and the first section is disposed within the first recessed groove. This has several advantages: firstly, it reduces the superimposed thickness between the first section and the first support member, which helps reduce the overall thickness of the foldable electronic device and facilitates a thinner design; secondly, it expands the assembly space of the first section, allowing for more flexible thickness selection; thirdly, it increases the distance between the first electrical connector and metal structural components such as the support plate and support structure, thereby reducing interference from these components to the signal of the first electrical connector; and fourthly, during assembly, the first recessed groove can be used to position the first electrical connector, reducing the assembly difficulty.

[0038] In one possible implementation, the first support member has at least one first through hole, which penetrates both sides of the first support member in the thickness direction, and the first section passes through at least one first through hole. In this way, the first section can be connected to the first support member through the first through hole, which helps to prevent the first section from shaking or swaying, and the structure is simple and ingeniously designed.

[0039] In one possible implementation, the foldable electronic device includes a foldable screen disposed on a supporting device; a first main body includes a first bearing surface and a first side wall, the first bearing surface facing the foldable screen, and the first side wall facing the second main body when the foldable electronic device is in the unfolded state; the first main body has a first groove penetrating the first bearing surface and the first side wall, a first section located within the first groove, and at least a portion of the first section being formed as an elastic segment. Thus, during the switching between the unfolded and folded states, the foldable electronic device can adapt to dimensional changes in different states through the stretching and deformation of the first section. Furthermore, since the first groove has a relatively large space, placing the first section within the first groove also provides sufficient assembly and elastic deformation space for the first section.

[0040] In one possible implementation, the foldable electronic device includes a foldable screen disposed on a supporting device, with a first space defined between the foldable screen and the supporting device, and at least a portion of a first electrical connector located within the first space. This approach, on the one hand, further reduces the distance between the first electrical connector and the foldable screen, thereby facilitating a reduction in the overall length, redundant length, and elastic segment length of the first electrical connector. This reduces the resistance and impedance fluctuations of the first electrical connector, which in turn reduces grounding impedance, improves battery charging efficiency, and reduces insertion loss while enhancing its consistency. On the other hand, it fully utilizes the space between the foldable screen and the supporting device, preventing the first electrical connector from occupying internal space within the supporting device. This not only optimizes the structural layout of the foldable electronic device but also makes its structure more compact, reducing its overall thickness and facilitating a thinner design.

[0041] In one possible implementation, the foldable electronic device includes a support sheet, which is stacked on the side of the folding mechanism closest to the folding screen, and at least a portion of the support sheet is fixed to the folding mechanism; a portion of the first electrical connector is disposed between the folding mechanism and the support sheet. This design effectively separates the first electrical connector from the support structure in the folding screen, preventing the first electrical connector from pressing against or constricting the screen during folding or unfolding of the foldable electronic device. This reduces the risk of the folding screen arching during bending and also prevents the first electrical connector from getting stuck in the cutouts on the support structure, improving the reliability of the first electrical connector and consequently enhancing the stability and reliability of signal transmission between the first and second circuit boards.

[0042] In one possible implementation, the foldable electronic device includes a second electrical connector, with its two ends electrically connected to a first circuit board and a second circuit board, respectively. One of the first and second electrical connectors is used to transmit radio frequency (RF) signals. By providing two independent electrical connectors, the RF and non-RF signals can be designed separately, which helps improve signal isolation, avoids interference between RF and non-RF signals, and enhances the anti-interference performance of the foldable electronic device. Attached Figure Description

[0043] Figure 1a A perspective view of a foldable electronic device in an unfolded state, provided in some embodiments of this application;

[0044] Figure 1b for Figure 1a The diagram shows the structure of the foldable electronic device in its folded state.

[0045] Figure 2 for Figure 1a An exploded view of the foldable electronic device shown.

[0046] Figure 3 for Figure 1a A partial cross-sectional view of the foldable electronic device shown at line AA;

[0047] Figure 4 for Figure 3 A partial cross-sectional view of the foldable electronic device in its folded state is shown.

[0048] Figure 5 Schematic diagram of the stacked structure of flexible circuit boards provided in some embodiments of this application;

[0049] Figure 6 This is a schematic diagram illustrating the relationship between the insertion loss of the stripline and the signal frequency in some embodiments of this application;

[0050] Figure 7 A top view of a foldable electronic device is provided for other embodiments of this application;

[0051] Figure 8a Partial cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0052] Figure 8b for Figure 8a A schematic diagram of a foldable electronic device in its folded state;

[0053] Figure 9 for Figure 8a A perspective view of the first electrical connector in the foldable electronic device shown.

[0054] Figure 10 for Figure 9 Top views of the first electrical connector in different states;

[0055] Figure 11 for Figure 9 An exploded view of the first electrical connector shown;

[0056] Figure 12 for Figure 9 A cross-sectional view of the first electrical connector shown at the BB line;

[0057] Figure 13 Schematic diagrams of the structure of the elastic segment provided in other embodiments of this application;

[0058] Figure 14 A cross-sectional schematic diagram of a first conductive element provided in some embodiments of this application;

[0059] Figure 15 Cross-sectional views of the elastic segment provided in other embodiments of this application;

[0060] Figure 16 Schematic diagrams of a first insulating member in different states provided for some embodiments of this application;

[0061] Figure 17 A top view of a first insulating element provided for some embodiments of this application;

[0062] Figure 18 A side view of a first insulating element provided for some embodiments of this application;

[0063] Figure 19 A schematic diagram of a flexible segment provided for some embodiments of this application;

[0064] Figure 20 for Figure 19 A schematic diagram of the first insulating element in the elastic segment shown;

[0065] Figure 21 for Figure 8a A schematic diagram of the assembly of the first electrical connector and the folding mechanism in the foldable electronic device shown.

[0066] Figure 22 for Figure 21 The assembly diagram shown is a schematic diagram in the folded state;

[0067] Figure 23 A partial structural schematic diagram of the first bendable segment provided for some embodiments of this application;

[0068] Figure 24 A simplified schematic diagram of a foldable electronic device provided in some embodiments of this application;

[0069] Figure 25 A cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0070] Figure 26 for Figure 25 The cross-sectional view of the foldable electronic device shown is in its folded state;

[0071] Figure 27a for Figure 25 An enlarged view of the foldable electronic device in region A shown;

[0072] Figure 27b This is a partial cross-sectional schematic diagram of a foldable electronic device in some other embodiments of this application;

[0073] Figure 27c for Figure 27b A partial top view of the first support member and the first main body in the unfolded state of the foldable electronic device shown.

[0074] Figure 28 Partial cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0075] Figure 29 for Figure 28 A partial cross-sectional view of the foldable electronic device in its folded state is shown.

[0076] Figure 30 for Figure 28 An assembly perspective view of the support plate, folding mechanism, and first electrical connector in the foldable electronic device shown.

[0077] Figure 31 for Figure 30 The assembled three-dimensional view shown is a cross-sectional view at the CC line;

[0078] Figure 32 for Figure 31 The cross-sectional view of the support plate, folding mechanism, and first electrical connector in the folded state is shown.

[0079] Figure 33 for Figure 28 A perspective view of the folding mechanism in the foldable electronic device shown.

[0080] Figure 34 for Figure 28 A perspective view of the first main body of the foldable electronic device shown.

[0081] Figure 35 Partial cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0082] Figure 36 for Figure 35 A partial cross-sectional view of the foldable electronic device in its folded state is shown.

[0083] Figure 37 A partial cross-sectional view of a first electrical connector and a foldable screen in a foldable electronic device provided in some embodiments of this application;

[0084] Figure 38 A partial cross-sectional view of a first electrical connector and a foldable screen in a foldable electronic device provided in some embodiments of this application;

[0085] Figure 39 Partial cross-sectional view of a foldable electronic device provided for some embodiments of this application;

[0086] Figure 40 for Figure 39 A schematic diagram of the foldable electronic device in its folded state;

[0087] Figure 41 Partial cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0088] Figure 42 for Figure 41 A schematic diagram of the foldable electronic device in its folded state;

[0089] Figures 43-46 These are partial cross-sectional views of foldable electronic devices provided in some embodiments of this application;

[0090] Figure 47 This is a partial cross-sectional view of the foldable electronic device provided in some embodiments of this application in its unfolded state;

[0091] Figure 48 for Figure 47 A schematic diagram of the foldable electronic device in its folded state;

[0092] Figure 49 Partial cross-sectional view of a foldable electronic device in an unfolded state, provided for some embodiments of this application;

[0093] Figure 50 for Figure 49 A schematic diagram of the foldable electronic device in its folded state;

[0094] Figure 51 Partial cross-sectional view of a foldable electronic device provided for some embodiments of this application;

[0095] Figure 52 for Figure 51 A top view of the foldable electronic device in its unfolded state;

[0096] Figure 53 A top view of a foldable electronic device in its unfolded state, provided for other embodiments of this application.

[0097] Figure label:

[0098] 100 foldable electronic devices;

[0099] Foldable screen 10; First display section 11; Second display section 12; Third display section 13; Display screen 101; Support structure 102; Hole K1;

[0100] Support device 20;

[0101] First main body 201; First shell 21; First middle frame 211; First middle plate 2111; First side frame 2112; First back cover 212; First receiving cavity Q1; First groove C1; First groove bottom wall C11; First groove side wall C12; First clearance groove C120; First area C121; Second area C122; First bearing surface a1; First side wall surface a2; First through hole K4; Second through hole K5;

[0102] Second main body 202; second shell 22; second middle frame 221; second back cover 222; second receiving cavity Q2; second groove C2; ​​second groove bottom wall C21; second bearing surface b1; second side wall surface b2;

[0103] Folding mechanism 23; base 230; shaft cover 2301; bottom plate 2301a; side plate 2301b; intermediate support member 2302; second top surface n1; second bottom surface n2; first support member 231; first outer surface m1; first inner surface m2; first top surface m3; first bottom surface m4; first through hole 231a; second support member 232; first gap J1; second gap J2; third gap J3; fourth gap J4;

[0104] First circuit board 31; RF chip 31a; Second circuit board 32; RF front-end module 32a; Calibration module 32b;

[0105] Electrical connector 301; Non-redundant part 3011; Redundant part 3012;

[0106] First flexible plate B1; First coating layer B11; First adhesive layer B12; First metal layer B13; First dielectric layer B14; Second flexible plate B2; Second coating layer B21; Second adhesive layer B22; Second metal layer B23; Second dielectric layer B24; Third flexible plate B3; Third coating layer B31; Third adhesive layer B32; Third metal layer B33; Third dielectric layer B34; Air gap K2; Adhesive layer B4;

[0107] First electrical connector 33; First section 331; First left side portion 331a; First right side portion 331b; Second section 332; Third section 333; Fourth section 334; First middle section 335; Middle portion 335a; Second left side portion 335b; Second right side portion 335c; First surface n31; Second surface n32; First bendable section 336; Third outer surface m51; Fourth outer surface m52; First deformable section 337; Second bendable section 338; Second deformable section 339;

[0108] Conductive component 33a; bare wire core t1; first insulating layer t2; first grounding layer t3; second insulating layer t4;

[0109] First conductive element 33a1; meandering unit E; first extension segment E1; second extension segment E2; third extension segment E3; first cavity Q4;

[0110] Second conductive element 33a2;

[0111] First shielding layer P1; First sub-plating layer P11; Second sub-plating layer P12; Second shielding layer P2; First conductive layer P3; Second conductive layer P4; Third conductive layer P5; Fourth conductive layer P6.

[0112] Insulating component 33b; First insulating component 33b1; First split portion F1; First recessed groove F11; Second split portion F2; Second recessed groove F21; First outer surface r1; First protrusion r10; First part r11; Second part r12; First inner surface r2; First outer peripheral surface r3; Second outer surface v1; Second protrusion v10; Third part v11; Fourth part v12; Second inner surface v2; Second outer peripheral surface v3; Second insulating component 33b2; Elastic segment D1; Non-elastic segment D2;

[0113] Second electrical connector 34; First connecting section 341; Second connecting section 342; Second intermediate section 343;

[0114] First Space Q3;

[0115] Support plate 40; Wear-resistant layer 50;

[0116] First settling tank C3; Second settling tank C4; Third settling tank C5; Fourth settling tank C6; Receiving tank C8;

[0117] First stress relief hole K21; Second stress relief hole K22; Third stress relief hole K23; Fourth stress relief hole K24;

[0118] First metallized via K31; second metallized via K32; third metallized via K33. Detailed Implementation

[0119] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0120] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0121] In the embodiments of this application, the terms "first" and "second" 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" and "second" may explicitly or implicitly include one or more of that feature.

[0122] In the description of the embodiments of this application, "and / or" is merely a way of describing the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after it are in an "or" relationship.

[0123] In the embodiments of this application, directional terms such as "upper", "lower", "lateral", "longitudinal", "left", "right", "top", "bottom", "inner", and "outer" may be defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms can be relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0124] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, "linking" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Rotary connection" refers to a connection where the components can rotate relative to each other after connection. "Sliding connection" refers to a connection where the components can slide relative to each other after connection. "Electrical connection" can include direct current conduction formed by direct contact between two devices, or high-frequency coupling conduction formed by capacitive coupling between two devices through a capacitor of a certain area.

[0125] In the description of embodiments of this application, the terms "parallel" and "perpendicular" include the described situation and situations that are similar to the described situation, where the range of similarity is within an acceptable deviation range. For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism can be, for example, within 15°. "Perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity can be, for example, within 15°.

[0126] To facilitate understanding, before providing a detailed description of the foldable electronic device in the embodiments of this application, the relevant terms involved in the embodiments of this application will be explained first.

[0127] MIPI: Mobile Industry Processor Interface, is an open standard and specification for mobile application processors initiated by the MIPI Alliance.

[0128] Insertion loss refers to the amount of signal strength reduction that occurs after a signal passes through a device or component during transmission. Insertion loss is a crucial indicator for evaluating the performance of components in a communication system, directly impacting transmission distance and overall system performance. Lower insertion loss results in higher signal transmission efficiency and longer transmission distances.

[0129] Isolation: In communication systems, isolation refers to the degree of separation between signals from each channel. A high isolation value can effectively prevent crosstalk between signals, which can lead to transmission signal distortion. There is a certain relationship between isolation and insertion loss; high isolation helps reduce insertion loss.

[0130] This application provides a foldable electronic device, which may include a first main body, a second main body, and a folding mechanism. The folding mechanism is used to realize the relative or synchronous movement of the first main body and the second main body, so that the foldable electronic device can switch between an unfolded state and a folded state. The relative movement between the first main body and the second main body includes relative rotation, relative sliding, etc., and the synchronous movement between the first main body and the second main body includes synchronous rotation, synchronous sliding, etc.

[0131] Specifically, foldable electronic devices have at least two states: an unfolded state and a folded state. In some cases, foldable electronic devices may further include an intermediate state. This intermediate state can be any one or more states between the unfolded and folded states. Users can switch the foldable electronic device to different states to meet different usage needs.

[0132] The foldable electronic device in this embodiment of the application, by providing a first electrical connector, connects its two ends to a first circuit board in the first main body and a second circuit board in the second main body, respectively, thereby achieving a reliable electrical connection between the first and second circuit boards. Simultaneously, by providing an elastic segment in the first electrical connector, the foldable electronic device can adapt to changes in its shape through elastic deformation of the elastic segment when switching between an unfolded and folded state. This reduces the tensile stress on the first electrical connector, improving its service life and consequently the service life of the foldable electronic device. Furthermore, the elastic segment also reduces the redundant length of the first electrical connector, thereby reducing its space requirements and facilitating the miniaturization of the foldable electronic device.

[0133] The foldable electronic device in this application embodiment can be a tablet computer, personal digital assistant (PDA), laptop computer, e-reader, handheld device with wireless communication function, computing device, in-vehicle device, wearable device (including but not limited to smartwatches, smart bracelets, etc.), virtual reality (VR) terminal device (e.g., VR glasses), augmented reality (AR) terminal device (e.g., AR glasses), Bluetooth headset, camera, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical care, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc., mobile or fixed terminal. This application embodiment does not specifically limit the form of the foldable electronic device.

[0134] Please see Figure 1a , Figure 1a This is a perspective view of a foldable electronic device 100 in its unfolded state, provided in some embodiments of this application. The foldable electronic device 100 includes a foldable screen 10 and a support device 20. In this embodiment, the foldable electronic device 100 is described as a foldable screen device (e.g., a foldable mobile phone). It is understood that in other embodiments, the foldable electronic device 100 may also be a slider phone, a rotating phone, etc.

[0135] in, Figure 1aThe foldable electronic device 100 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 1a Limitations. For example, in some other examples, the foldable electronic device 100 may not include the foldable screen 10.

[0136] The foldable electronic device 100 is approximately rectangular in shape when unfolded. In other embodiments, the foldable electronic device 100 may also be approximately circular, elliptical, or similar in shape when unfolded.

[0137] The foldable screen 10 is used to display images, videos, and other information. Please refer to [link / reference]. Figure 1a The foldable screen 10 includes a first display portion 11, a second display portion 12, and a third display portion 13. The third display portion 13 is connected between the first display portion 11 and the second display portion 12. Figure 1a The first display section 11, the second display section 12, and the third display section 13 are schematically divided using dashed lines. These dashed lines do not actually exist in the foldable screen 10. The same interpretation applies to the dashed lines on other components mentioned later, and they will not be elaborated upon further.

[0138] Please see Figure 1b , Figure 1b for Figure 1a The diagram shows the structure of the foldable electronic device 100 in its folded state, where the foldable screen 10 is also folded. Specifically, when the foldable screen 10 is folded, the first display portion 11 and the second display portion 12 are opposite each other, and the third display portion 13 is bent. At this time, the third display portion 13 can be teardrop-shaped, U-shaped, etc. In this state, the foldable electronic device 100 is small in size and easy to carry.

[0139] It should be noted that, Figure 1b In the illustrated embodiment, when the foldable electronic device 100 is in a folded state, the support device 20 protects the foldable screen 10 from view, and the foldable screen 10 is not visible to the user. In this case, the foldable electronic device 100 is an inward-folding electronic device. In other embodiments, when the foldable electronic device 100 is in a folded state, the foldable screen 10 may also be located outside the support device 20, and the foldable screen 10 is visible to the user. In this case, the foldable electronic device 100 is an outward-folding electronic device.

[0140] Please see Figure 2 and combined Figure 3 , Figure 2 for Figure 1a An exploded view of the foldable electronic device 100 shown. Figure 3 for Figure 1aThe diagram shows a partial cross-sectional view of the foldable electronic device 100 at line AA. In some embodiments, the foldable screen 10 includes a display screen 101 and a support structure 102 stacked together. The first display portion 11, the second display portion 12, and the third display portion 13 of the foldable screen 10 may each include a portion of the display screen 101 and a portion of the support structure 102 opposite to it.

[0141] Specifically, the display screen 101 has a display surface and a non-display surface facing away from each other. The display surface faces away from the support device 20. The support structure 102 is stacked on top of the display screen 101 and can be fixed to the non-display surface of the display screen 101. The support structure 102 is used to increase the overall structural strength of the folding screen 10, and the support structure 102 can be folded together with the display screen 101.

[0142] The support structure 102 can be in the form of a thin sheet. The material of the support structure 102 can be metals such as stainless steel and titanium alloy, or it can be carbon fiber. These materials have a certain degree of hardness and a high elastic modulus, which can improve the hardness and bending resilience of the foldable screen 10. To facilitate the bending of the support structure 102, in some embodiments, please refer to... Figure 3 The support structure 102 in the third display section 13 may be provided with a hollow hole K1.

[0143] Support device 20 is used to support foldable screen 10. (See also...) Figure 2 The support device 20 includes a first main body 201, a second main body 202, and a folding mechanism 23.

[0144] The first main body 201 can be used to support the first display portion 11 of the foldable screen 10. The second main body 202 can be used to support the second display portion 12 of the foldable screen 10. The folding mechanism 23 is connected between the first main body 201 and the second main body 202, and can be used to support the third display portion 13 of the foldable screen 10.

[0145] The first main body 201 and the second main body 202 can rotate relative to each other or synchronously via the folding mechanism 23. Specifically, the folding mechanism 23 can switch between an unfolded state and a folded state, thereby allowing the entire foldable electronic device 100 to switch between these states. When the folding mechanism 23 is in the folded state, the folding screen 10, the support device 20, and the foldable electronic device 100 are also in the folded state. When the folding mechanism 23 is in the unfolded state, the folding screen 10, the support device 20, and the foldable electronic device 100 are also in the unfolded state.

[0146] When the foldable electronic device 100 is a foldable screen device, please refer to Figure 1bWhen the foldable electronic device 100 is in the folded state, the angle between the first main body 201 and the second main body 202 is approximately 0 degrees. Please refer to... Figure 1a When the foldable electronic device 100 is in the unfolded state, the included angle between the first main body portion 201 and the second main body portion 202 can be approximately 180 degrees. It is understood that in other embodiments, when the foldable electronic device 100 is another device, the included angle between the first main body portion 201 and the second main body portion 202 in the unfolded and folded states can also be other angles, and this application does not specifically limit this.

[0147] In this embodiment, the support device 20 includes two main bodies: a first main body 201 and a second main body 202. The support device 20 can be folded once. It is understood that in other embodiments, the support device 20 may also include three, four, or more main bodies. In this case, two adjacent main bodies can be rotatably connected by the folding mechanism 23. Thus, the support device 20 can be folded multiple times (two or more times).

[0148] The first main body 201 may include a first housing 21 and components located within the first housing 21, and the second main body 202 may include a second housing 22 and components located within the second housing 22.

[0149] Please see Figure 3 The first housing 21 may include a first middle frame 211 and a first back cover 212. The first display portion 11 of the foldable screen 10 is supported on the first middle frame 211. Exemplarily, the first middle frame 211 includes a first middle plate 2111 and a first frame 2112. The first frame 2112 may be cylindrical, and the first middle plate 2111 is connected to the inner circumferential surface of the first frame 2112. The first middle plate 2111 and the first frame 2112 may be integrally formed. Alternatively, the first middle plate 2111 and the first frame 2112 may be connected by welding, fasteners, or other methods. Among them, the fasteners described in the embodiments of this application include, but are not limited to, screws, rivets, bolts, etc.

[0150] In some embodiments, the first middle frame 211 can be a metal component. For example, the first middle frame 211 can be an aluminum alloy component, a magnesium alloy component, a stainless steel component, etc. In this way, the first middle frame 211 not only provides rigid support for the components within the first housing 21, but also provides a zero-potential reference for the various electronic devices in the foldable electronic device 100. That is, the first middle frame 2111 can be formed as a first reference ground. Additionally, in this case, one or more slots can be provided on the first frame 2112 to divide the first frame 2112 into multiple antenna radiators. In this way, the first frame 2112 can be reused as an antenna radiator, saving space and cost associated with additional antenna radiators.

[0151] The first back cover 212 is fixedly connected to the side of the first middle frame 211 away from the first display portion 11. A first receiving cavity Q1 can be formed between the first back cover 212 and the first middle frame 211. In some embodiments, the material of the first back cover 212 includes, but is not limited to, metal, plastic, glass, ceramic, etc. It is understood that in other embodiments, when the foldable electronic device 100 is an inward-folding electronic device, the first back cover 212 may also include an additional screen. In this way, when the foldable electronic device 100 is in a folded state, the additional screen in the first back cover 212 can be used as the outer screen of the foldable electronic device 100.

[0152] Please continue reading. Figure 3 The second housing 22 includes a second middle frame 221 and a second back cover 222. The second display portion 12 of the foldable screen 10 is supported on the second middle frame 221. The second back cover 222 is fixedly connected to the side of the second middle frame 221 away from the second display portion 12. A second receiving cavity Q2 is formed between the second middle frame 221 and the second back cover 222. The structure and materials of the second middle frame 221 can be designed with reference to the first middle frame 211. Specifically, the second middle frame 221 can also be a metal part. In this case, the second middle frame 221 can be formed as a second reference ground, and the second frame 221 can be reused as an antenna radiator.

[0153] In some embodiments, please refer to Figure 2 The first main body 201 has a first groove C1 at one end near the second main body 202, and the second main body 202 has a second groove C2 at one end near the first main body 201. For example, the first groove C1 can be formed in the first housing 21, and the second groove C2 can be formed in the second housing 22. Specifically, the first groove C1 can be formed in the first middle frame 211, and the second groove C2 can be formed in the second middle frame 221.

[0154] Please see Figure 2 and combined Figure 3The first main body 201 includes a first bearing surface a1 and a first side wall surface a2. The second main body 202 includes a second bearing surface b1 and a second side wall surface b2. Both the first bearing surface a1 and the second bearing surface b1 face the foldable screen 10. When the foldable electronic device 100 is in the unfolded state, the first side wall surface a2 faces the second main body 202, and the second side wall surface b2 faces the first main body 201. A first groove C1 penetrates the first bearing surface a1 and the first side wall surface a2, and a second groove C2 penetrates the second bearing surface b1 and the second side wall surface b2.

[0155] Please see Figure 3 When the foldable electronic device 100 is in the unfolded state, the first groove C1 and the second groove C2 align to form a receiving space, within which the folding mechanism 23 can be accommodated. Specifically, a portion of the folding mechanism 23 can be located within the first groove C1, and another portion can be located within the second groove C2. This helps to prevent the folding mechanism 23 from being exposed when the foldable electronic device 100 is unfolded, thus improving the aesthetic appearance of the foldable electronic device 100 in the unfolded state.

[0156] Please see Figures 3-4 , Figure 4 for Figure 3 The diagram shows a partial cross-sectional view of the foldable electronic device 100 in its folded state. The folding mechanism 23 includes a base 230, a first support member 231, and a second support member 232. Figure 3 and Figure 4 The folding mechanism 23 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 3 and Figure 4 The folding mechanism 23 may also include a swing arm, a synchronous transmission mechanism, a damping mechanism, etc., subject to limitations. For example, the folding mechanism 23 may also include a swing arm, a synchronous transmission mechanism, a damping mechanism, etc. Alternatively, in other embodiments, the folding mechanism 23 may not include the second support member 232.

[0157] For ease of description in the following embodiments, an XYZ coordinate system is established for the base 230, defining the length direction of the base 230 as the Y-axis, the width direction as the X-axis, and the thickness direction as the Z-axis. It is understood that the coordinate system setting of the foldable electronic device 100 can be flexibly set according to actual needs, and no specific limitations are made here.

[0158] In this embodiment, please refer to Figure 1a and Figure 3When the foldable electronic device 100 is in its unfolded state, its width direction is parallel to the Y-axis direction and its length direction is parallel to the X-axis direction, allowing it to fold longitudinally. That is, the foldable electronic device 100 in this embodiment is a vertically folding electronic device. It is understood that in other embodiments, the foldable electronic device 100 may also be in its unfolded state with its width direction parallel to the X-axis direction and its length direction parallel to the Y-axis direction, allowing it to fold laterally. In this case, the foldable electronic device 100 is a horizontally folding electronic device.

[0159] In some embodiments, please refer to Figures 3-4 The base 230 may include a shaft cover 2301 and an intermediate support 2302. The shaft cover 2301 may serve as an exterior part (i.e., an externally visible component) of the folding mechanism 23. The materials of the shaft cover 2301 include, but are not limited to, metal and plastic.

[0160] Please see Figure 4 The shaft cover 2301 includes a base plate 2301a and a side plate 2301b. The base plate 2301a is generally flat. The side plate 2301b surrounds the outer edge of the base plate 2301a, defining an accommodating space between the side plate 2301b and the base plate 2301a, where other components of the folding mechanism 23 can be accommodated. This allows some components of the folding mechanism 23 to be hidden inside the shaft cover 2301, improving the aesthetic appearance of the foldable electronic device 100.

[0161] An intermediate support member 2302 is disposed on the shaft cover 2301 and can be used to support part of the folding screen 10. The intermediate support member 2302 is generally flat or block-shaped. The material of the intermediate support member 2302 may include at least one of metal, plastic, and amorphous material. The intermediate support member 2302 may include one or more structural components.

[0162] In some embodiments, the intermediate support 2302 and the shaft cover 2301 are separate components. The intermediate support 2302 can move relative to the shaft cover 2301 along the thickness direction of the base 230, or the intermediate support 2302 can be fixed relative to the shaft cover 2301. In other embodiments, the intermediate support 2302 can be integrally formed with the shaft cover 2301.

[0163] Both the first support member 231 and the second support member 232 can rotate relative to the base 230 between an unfolded position and a folded position. Both the first support member 231 and the second support member 232 can be generally elongated strip-shaped plates. Specifically, the length direction of both the first support member 231 and the second support member 232 is parallel to the Y-axis. Both the first support member 231 and the second support member 232 can be rotatably connected to the base 230 via a pivot, swing arm, etc., but this embodiment does not specifically limit this connection.

[0164] Please see Figures 3-4 The first groove C1 includes a first groove bottom wall C11 facing the folding screen 10, and the first support member 231 is opposite to and spaced apart from the first groove bottom wall C11. The second groove C2 includes a second groove bottom wall C21 facing the folding screen 10, and the second support member 232 is opposite to and spaced apart from the second groove bottom wall C21.

[0165] In some embodiments, please refer to Figure 3 When the foldable electronic device 100 is in the unfolded state, both the first support member 231 and the second support member 232 are in the unfolded position. The first support member 231 and the second support member 232 are located on opposite sides of the base 230. The angle between the surface of the first support member 231 facing the foldable screen 10 and the surface of the intermediate support member 2302 facing the foldable screen 10 (that is, the surface of the base 230 facing the foldable screen 10) is approximately 180°, and the angle between the surface of the second support member 232 facing the foldable screen 10 and the surface of the intermediate support member 2302 facing the foldable screen 10 is also approximately 180°. In this way, when the foldable electronic device 100 is in the unfolded state, the third display portion 13 of the foldable screen 10 can be supported by the first support member 231, the second support member 232, and the intermediate support member 2302. This ensures the flatness of the third display portion 13 when the foldable screen 10 is in the unfolded state.

[0166] Please continue reading. Figure 3 When the foldable electronic device 100 is in the unfolded state, there is a first gap J1 between the intermediate support member 2302 and the first support member 231, and a third gap J3 between the intermediate support member 2302 and the second support member 232. This prevents collisions, friction, or even jamming between the first support member 231 and the intermediate support member 2302, and between the second support member 232 and the intermediate support member 2302, when they rotate between the unfolded and folded positions, ensuring smooth switching of the foldable electronic device 100 between the unfolded and folded states.

[0167] Please see Figure 4When the foldable electronic device 100 is in the folded state, both the first support member 231 and the second support member 232 are in the folded position. The surface of the first support member 231 facing the foldable screen 10 and the surface of the second support member 232 facing the foldable screen 10 are opposite each other. In this way, a space for accommodating the third display portion 13 can be defined between the first support member 231, the second support member 232 and the intermediate support member 2302, so as to limit the shape of the third display portion 13 of the foldable screen 10 in the folded state.

[0168] In some embodiments, please refer to Figure 3 and combined Figure 4 During the transition of the foldable electronic device 100 from its unfolded state to its folded state, the angles at which the first support member 231 rotates relative to the intermediate support member 2302 and the second support member 232 rotate relative to the intermediate support member 2302 are both first angles. The angles at which the first main body portion 201 rotates relative to the base 230 and the second main body portion 202 rotates relative to the base 230 are both second angles, where the first angle is greater than the second angle. For example, the first angle can be greater than 90 degrees, and the second angle can be equal to 90 degrees. This allows the third display portion 13 to be folded into a teardrop shape, which helps reduce the bending radius of the foldable screen 10, thereby reducing the overall thickness of the device.

[0169] It is understood that in some other embodiments, the first angle may also be equal to the second angle. For example, both the first angle and the second angle may be equal to 90 degrees. In this case, the third display portion 13 may be folded into other shapes (e.g., U-shape), which is not specifically limited in this embodiment.

[0170] Since the bending radius of the foldable electronic device 100 when it is folded is smaller than that of the folding mechanism 23, in order to prevent the third display portion 13 of the foldable screen 10 from being damaged by the pressure of the base 230 during the folding state or folding process, please refer to... Figure 3 and combined Figure 4 When the folding mechanism 23 folds from the unfolded state to the folded state, the first support member 231 and the second support member 232 rotate relative to the base 230 and also move relative to the intermediate support member 2302 in a direction away from the intermediate support member 2302. When the folding mechanism 23 folds from the folded state to the unfolded state, the first support member 231 and the second support member 232 rotate relative to the base 230 and also move relative to the intermediate support member 2302 in a direction closer to the intermediate support member 2302.

[0171] In this way, the size of the folding mechanism 23 can adapt to the shape changes of the third display part 13 during the folding or unfolding process, which can prevent the base 230 from squeezing the third display part 13, thereby effectively reducing the stress on the third display part 13 during the folding process and in the folded state, which is beneficial to improving the reliability of the folding screen 10.

[0172] In some embodiments, please refer to Figures 3-4 The foldable electronic device 100 also includes a first circuit board 31 and a second circuit board 32. The first circuit board 31 is disposed in the first receiving cavity Q1 of the first housing 21, and the second circuit board 32 is disposed in the second receiving cavity Q2 of the second housing 22. In addition, the foldable electronic device 100 may also include a first battery, a second battery, a speaker, a receiver, a microphone, a headphone jack, buttons, a charging interface, etc.

[0173] Both the first circuit board 31 and the second circuit board 32 can be used to house electronic components. These electronic components include, but are not limited to, processors (also known as chips), antenna modules, Bluetooth modules, WiFi modules, GPS modules, charging management modules, screen display and operation modules, resistors, capacitors, inductors, potentiometers, vacuum tubes, electromechanical components, connectors, discrete semiconductor devices, sensors, power supplies, switches, micromotors, electronic transformers, relays, SIM card slots, and Universal Serial Bus (USB) devices.

[0174] Please see Figures 3-4 The foldable electronic device 100 also includes an electrical connector 301. The electrical connector 301 passes through or spans the folding mechanism 23, and can be used to transmit signals such as radio frequency signals and non-radio frequency signals. Among them, non-radio frequency signals include, but are not limited to, hardware signals, MIPI signals (control signals), power signals, and ground signals.

[0175] In some embodiments, the two ends of the electrical connector 301 are electrically connected to the first circuit board 31 and the second circuit board 32, respectively. For example, the electrical connector 301 and the first circuit board 31, as well as the electrical connector 301 and the second circuit board 32, can be electrically connected through connection structures such as board-to-board (BTB) connectors, zero insertion force (ZIF) connector terminals (e.g., cable clip terminals).

[0176] In some embodiments, the electrical connector 301 may be a flexible printed circuit (FPC). See also... Figure 5 , Figure 5This is a schematic diagram of the stacked structure of a flexible circuit board provided in some embodiments of this application. The flexible circuit board may include a non-redundant portion 3011 and a redundant portion 3012. The non-redundant portion 3011 may be fixed to the base 230. For example, the non-redundant portion 3011 may be fixed to the shaft cover 2301 or the intermediate support member 2302. The redundant portion 3012 is redundantly disposed within the foldable electronic device 100.

[0177] Please see Figure 3 and combined Figure 4 When the foldable electronic device 100 switches between an unfolded state and a folded state, the redundant portion 3012 can deform (e.g., bend, stretch, etc.). For example, when the foldable electronic device 100 is in the folded state, the redundant portion 3012 can be stretched, reducing or eliminating the redundancy. In this way, the flexible circuit board can adapt to the shape changes of the foldable electronic device 100 through the deformation of the redundant portion 3012, preventing breakage of the flexible circuit board, meeting the bending requirements of the flexible circuit board, and improving the reliability of the flexible circuit board.

[0178] In some embodiments, the flexible circuit board may include multiple layers of flexible boards stacked together. In this embodiment, a three-layer flexible board is used as an example for illustration, but this should not be construed as a limitation on the embodiments of this application. Please refer to... Figure 5 The three flexible panels are a first flexible panel B1, a second flexible panel B2, and a third flexible panel B3. The second flexible panel B2 is located between the first flexible panel B1 and the third flexible panel B3.

[0179] To ensure the connection between adjacent flexible panels and the bending performance of the flexible circuit board, in some embodiments, please refer to... Figure 5 In the non-redundant section 3011, adjacent flexible plates (i.e., between the first flexible plate B1 and the second flexible plate B2, and between the second flexible plate B2 and the third flexible plate B3) can be bonded together by adhesive layer B4. In the redundant section 3011, adjacent flexible plates form an air gap K2. The air gap K2 provides a certain amount of deformation space, making the flexible circuit board easier to bend. That is, in the redundant section 3012, no adhesive layer B4 is provided between adjacent flexible plates.

[0180] When a flexible circuit board is used to transmit radio frequency signals, the flexible circuit board may include at least one of stripline, coplanar waveguide, microstrip line, and non-planar microstrip line. Figure 5 (a) is a schematic diagram of the layered structure of the strip. For example... Figure 5As shown in (a), the first flexible plate B1 may include a first coverlay layer B11, a first adhesive layer B12, a first metal layer B13, and a first dielectric layer B14, which are stacked sequentially. The first dielectric layer B14 is located on the side of the first metal layer B13 closer to the second flexible plate B2.

[0181] The first coating layer B11 can be used to prevent the oxidation of the first metal layer B13. The material of the first coating layer B11 may include at least one of polyimide (PI) and polyester (PET). The first metal layer B13 may be a copper layer. The first dielectric layer B14 is used to provide physical support. Both the first metal layer B13 and the first dielectric layer B14 may be provided by a flexible copper clad laminate (FCCL). For example, the thickness of the first coating layer B11 may be 12 μm to 18 μm, the thickness of the first adhesive layer B12 may be 7.5 μm to 10 μm, the thickness of the first metal layer B13 may be 9 μm to 15 μm, and the thickness of the first dielectric layer B14 may be 12 μm to 18 μm.

[0182] The second flexible plate B2 includes a second coating layer B21, a second adhesive layer B22, a second metal layer B23, and a second dielectric layer B24, which are stacked sequentially. The second dielectric layer B24 is located on the side of the second metal layer B23 closest to the third flexible plate B3. The third flexible plate B3 includes a third dielectric layer B34, a third metal layer B33, a third adhesive layer B32, and a third coating layer B31, which are stacked sequentially. The third dielectric layer B34 is located on the side of the third metal layer B33 closest to the second flexible plate B2. The material and thickness of each film layer in the second flexible plate B2 and the material and thickness of each film layer in the third flexible plate B3 can be designed with reference to the first flexible plate B1.

[0183] The second metal layer B23 can be a signal line, and both the first metal layer B13 and the second metal layer B23 can be reference grounds.

[0184] When the foldable electronic device 100 switches between the unfolded and folded states, the two air gaps K2 in the redundancy section 3012 are compressed, resulting in uncontrollable deformation. Since reference grounds are distributed on both the upper and lower sides of the signal line of the stripline, the distance between the reference grounds on both sides and the signal line changes, causing a large impedance change, resulting in severe impedance mismatch, significant signal loss, and a large degree of insertion loss degradation. Furthermore, because the upper and lower sides of the signal line have metal reference grounds, metal is more prone to breakage during bending compared to other layered materials; that is, the more metal layers there are, the greater the probability of breakage. Therefore, the stripline has relatively poor bending ability. However, the reference grounds on both sides of the signal line can form shielding layers on both sides of the signal line, so the stripline is not easily interfered with by external signals. Similarly, the stripline is not easily interfered with by other external components.

[0185] In this embodiment of the application, "the upper and lower sides of the signal line" refers to the two sides of the signal line in the stacking direction of the multilayer flexible board.

[0186] Figure 5 (b) in the diagram is a schematic diagram of the stacked structure of a coplanar waveguide. For example... Figure 5 As shown in (b), the first flexible plate B1 may include a first dielectric layer B14. The second flexible plate B2 includes a second coating layer B21, a second adhesive layer B22, a second metal layer B23, and a second dielectric layer B24, which are sequentially stacked. The second dielectric layer B24 is located on the side of the second metal layer B23 closer to the third flexible plate B3. The third flexible plate B3 includes a third dielectric layer B34. Neither the first flexible plate B1 nor the third flexible plate B3 of the coplanar waveguide includes a metal layer.

[0187] The second metal layer B23 can form the signal line and the reference ground. That is, the reference ground and the signal line of the coplanar waveguide are formed on the same flexible board layer.

[0188] When the foldable electronic device 100 switches between the unfolded and folded states, although the two air gaps K2 of the redundant part 3012 are compressed and undergo uncontrollable deformation, the reference ground and signal line of the coplanar waveguide are located on the same flexible plate. Therefore, the position of the reference ground relative to the signal line does not change during the folding process, resulting in minimal impedance change and reducing the likelihood of impedance mismatch. Signal loss is also minimal, meaning insertion loss degradation is less severe. Furthermore, neither the first flexible plate B1 nor the second flexible plate B2 of the coplanar waveguide contains a metal layer, significantly reducing the probability of breakage compared to a stripline. Therefore, the coplanar waveguide transmission line has strong bending capability and is less prone to physical damage. However, because the reference ground and signal line are located on the same flexible plate, and there are no metal layers on the top and bottom sides of the signal line, it cannot shield against interference signals in space, resulting in poor anti-interference capability. Similarly, the coplanar waveguide is also prone to causing external interference.

[0189] Figure 5 (c) in the diagram is a schematic diagram of the stacked structure of microstrip lines. For example... Figure 5 As shown in (c), the first flexible plate B1 may include a first coating layer B11, a first adhesive layer B12, a first metal layer B13, and a first dielectric layer B14 stacked sequentially. The first dielectric layer B14 is located on the side of the first metal layer B13 closer to the second flexible plate B2. The second flexible plate B2 includes a second dielectric layer B24. The third flexible plate B3 includes a third dielectric layer B34, a third metal layer B33, a third adhesive layer B32, and a third coating layer B31 stacked sequentially. The third dielectric layer B34 is located on the side of the third metal layer B33 closer to the second flexible plate B2.

[0190] One of the first metal layer B13 and the second metal layer B23 can be used as a signal line, and the other can be used as a reference ground. The second flexible substrate B2 of the microstrip line has no metal layer.

[0191] Figure 5 (d) in the diagram is a schematic diagram of the stacked structure of non-planar microstrip lines. For example... Figure 5 As shown in (d), the stacked structure of the non-planar microstrip line is the same as that of the stripline. The difference lies in that the second metal layer B23 in the non-planar microstrip line serves as a reference ground, while the first metal layer B13 and the third metal layer B33 are both signal lines. The impedance mismatch of the non-planar microstrip line is largely the same as that of the stripline. The anti-interference performance of the non-planar microstrip line is also largely the same as that of the microstrip line.

[0192] In practical applications, the appropriate transmission line type can be selected based on different requirements regarding impedance mismatch, insertion loss, interference immunity, and assembly space in the specific application scenario. For example, stripline lines can be chosen when high interference immunity is required. Coplanar waveguides can be chosen when high insertion loss or thinning requirements are needed for flexible circuit boards.

[0193] In some embodiments, please refer to Figure 3 When the foldable electronic device 100 is in the unfolded state, the air gap K2 in four areas of the flexible circuit board increases, while the multilayer flexible board in the remaining areas remains in a compressed state. (See also...) Figure 4 When the foldable electronic device 100 is in a folded state, the air gap K2 in two areas of the flexible circuit board increases, while the multilayer flexible board in the remaining areas is in a compressed state.

[0194] As the air gap K2 increases, the impedance of the flexible circuit board becomes mismatched towards higher impedances, and as the air gap K2 decreases, the impedance of the flexible circuit board becomes mismatched towards lower impedances. Furthermore, the flexible circuit board is in different states when the foldable electronic device 100 is in different states, and the size of the air gap K2 will change. Therefore, the design of the air gap K2 in striplines, microstrip lines, and non-planar microstrip lines will result in significant fluctuations in insertion loss of the flexible circuit board under different states, meaning poor consistency in insertion loss.

[0195] Please see Figure 6 , Figure 6 This is a schematic diagram illustrating the relationship between insertion loss of the stripline and signal frequency in some embodiments of this application. Figure 6 The horizontal axis represents the signal frequency in gigahertz (GHz), and the vertical axis represents the insertion loss in dB. Figure 6 The dashed line in the figure shows the curve representing the relationship between the insertion loss of the flexible circuit board and the signal frequency when the foldable electronic device 100 is in its unfolded state. Figure 6 The solid line in the figure shows the relationship between the insertion loss of the flexible circuit board and the signal frequency when the foldable electronic device 100 is in a folded state.

[0196] from Figure 6 As can be seen, at a frequency of 1 GHz, the difference in insertion loss of the flexible circuit board under different overall system states is approximately 0.14 dB. At a frequency of 3 GHz, the difference is approximately 5.27 dB. At a frequency of 5 GHz, the difference is approximately 1 dB. At a frequency of 6 GHz, the difference is approximately 2 dB.

[0197] In this embodiment of the application, the "difference in insertion loss of flexible circuit board under different overall states" refers to the difference between the insertion loss of flexible circuit board in the unfolded state of foldable electronic device 100 and the insertion loss of flexible circuit board in the folded state of foldable electronic device 100.

[0198] Furthermore, to enable the flexible circuit board to better adapt to the shape changes of the foldable electronic device 100, in some embodiments, the flexible circuit board is redundantly disposed in the foldable electronic device 100. For example, when the foldable electronic device 100 is in the unfolded state, the redundant portion 3012 is approximately S-shaped. In this way, when the foldable electronic device 100 is in the unfolded state, the straight-line distance between the two ends of the flexible circuit board is less than the length of the flexible circuit board. Here, "the length of the flexible circuit board" can be understood as the straight-line distance between the two ends of the flexible circuit board when it is straightened.

[0199] For example, when the foldable electronic device 100 is in its unfolded state, if the straight-line distance between the two ends of the flexible circuit board is 40mm, the length of the flexible circuit board needs to be set to 55mm to 60mm. However, the insertion loss of signal transmission is inversely proportional to the length of the signal line; the longer the signal line, the greater the insertion loss. Therefore, redundant design of the flexible circuit board is not conducive to reducing the insertion loss of signal transmission. At the same time, the longer the flexible circuit board, the greater the resistance, which is detrimental to improving battery charging efficiency and reducing grounding impedance.

[0200] Furthermore, because the flexible circuit board needs to be inserted into the folding mechanism 23 and avoid structures such as the swing arm within the folding mechanism 23, the width of the flexible circuit board cannot be designed to be too large. Otherwise, it would occupy too much space in the folding mechanism 23 in the Y-axis direction, affecting the reliability of the folding mechanism 23. The width of each coplanar waveguide is approximately 2mm, the width of each stripline is 1mm to 1.5mm, and the width of two microstrip lines is 3.4mm to 4mm. Therefore, the number of transmission lines is also greatly limited by the internal assembly space of the folding mechanism 23.

[0201] In other embodiments, the electrical connector 301 may also be a coaxial cable (e.g., a cable). See also Figure 7 , Figure 7 A top view of a foldable electronic device 100 is provided for other embodiments of this application. Figure 7 The electrical connector 301 shown is a coaxial cable, and the coaxial cable is redundantly provided in the foldable electronic device 100. In this way, when the foldable electronic device 100 is in the folded state, the coaxial cable can be stretched.

[0202] To meet the elongation requirements of coaxial cables, please refer to [link / reference]. Figure 7The coaxial cable can be redundantly arranged in the XY plane. For example, the coaxial cable has redundancy in the X-axis direction and redundancy in the Y-axis direction. However, this redundant design increases the space occupied by the coaxial cable in the folding mechanism 23, affecting the reliability of the folding mechanism 23.

[0203] In addition, using coaxial cable as the electrical connector 301 has the following disadvantages: 1. The wire diameter of the coaxial cable is usually greater than or equal to 0.64mm. Due to its large diameter, the coaxial cable cannot pass through the folding mechanism 23 when the space within the folding mechanism 23 is narrow. 2. The coaxial cable lacks elasticity. When the foldable electronic device 100 switches between different states, the coaxial cable cannot quickly rebound, requiring an auxiliary traction design, resulting in a complex structure. 3. The outer surface of the coaxial cable is easily scratched, which can easily cause excessive radiated spurious emission (RSE), interference, and signal leakage. 4. When the wire diameter of the coaxial cable is 1mm, it will break after approximately 100,000 bends; when the bending radius of the coaxial cable is 0.75mm, it will break after 50,000 bends, resulting in a short lifespan.

[0204] To improve the reliability of the electrical connection between the first circuit board 31 and the second circuit board 32 while simultaneously achieving the electrical connection between them, please refer to... Figures 8a-8b , Figure 8a A partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application in its unfolded state. Figure 8b for Figure 8a This is a schematic diagram of the foldable electronic device 100 in its folded state. In this embodiment, the foldable electronic device 100 includes a support device 20, a folding screen 10, and a first electrical connector 33. The first electrical connector 33 serves as an electrical connector 301. The structures of the support device 20 and the folding screen 10 in this embodiment can be designed with reference to the support device 20 and the folding screen 10 in any embodiment of this application, and will not be described in detail here.

[0205] The two ends of the first electrical connector 33 are respectively located within the first housing 21 and the second housing 22. For example, the two ends of the first flexible circuit board are electrically connected to the first circuit board 31 and the second circuit board 32, respectively. The first electrical connector 33 can be used to transmit at least one of radio frequency signals and non-radio frequency signals. Alternatively, when the two ends of the first electrical connector 33 are electrically connected to a reference ground in the first circuit board 31 and a reference ground in the second circuit board 32, the first electrical connector 33 can achieve an electrical connection between the two reference grounds.

[0206] Please see Figure 9 , Figure 9 for Figure 8aThe diagram shows a perspective view of the first electrical connector 33 in the foldable electronic device 100. The first electrical connector 33 may include a conductive element 33a and an insulating element 33b. The conductive element 33a serves as an electrical connection, enabling electrical connection between the first electrical connector 33 and the first circuit board 31 and the second circuit board 32. The insulating element 33b provides insulation and protection, preventing friction and contact between the conductive element 33a and internal metal structures of the foldable electronic device 100, such as the first middle frame 211 and the second middle frame 221. Figure 9 The conductive component 33a is located inside the insulating component 33b, therefore Figure 9 The conductive component 33a is represented by a dashed line.

[0207] In some embodiments, the first electrical connector 33 includes an elastic segment D1, which can elastically deform. For example, when the foldable electronic device 100 switches between an unfolded state and a folded state, the elastic segment D1 can elastically deform (e.g., stretch or extend) to adapt to the change in the shape of the foldable electronic device 100.

[0208] In some embodiments, please refer to Figure 9 The elastic segment D1 may include a first insulating element 33b1 and a first conductive element 33a1. The first conductive element 33a1 constitutes at least a portion of the conductive element 33a, and the first insulating element 33b1 constitutes at least a portion of the insulating element 33b. That is, the conductive element 33a includes the first conductive element 33a1, and the insulating element 33b includes the first insulating element 33b1.

[0209] In some embodiments, the first insulating member 33b1 can elastically deform along the first direction e1. For example, the first insulating member 33b1 can stretch (including contraction) along the first direction e1. That is, the first direction e1 is the deformable direction of the first conductive member 33a1. In this way, the first insulating member 33b1 not only provides insulation and protection but also provides elastic stretching properties for the elastic segment D1, ensuring the elasticity and rebound speed of the elastic segment D1.

[0210] For example, the first insulating component 33b1 can be a silicone component, a rubber component, a polymer material component, etc. The polymer material component includes at least one of polyurethane (PU), polyester resin, and polypropylene (PP). These materials have strong elastic deformation capabilities and high structural strength, ensuring both the elastic deformation capability of the first insulating component 33b1 and the overall structural strength of the first electrical connector 33.

[0211] The first conductive element 33a1 is fixed to the first insulating element 33b1, and the first conductive element 33a1 extends meanderingly along the first direction e1. The first conductive element 33a1 can be wavy, zigzag, etc. The first conductive element 33a1 and the first insulating element 33a1 can be fixed by means of bonding, snapping, heat pressing, etc. Specifically, when the first insulating element 33b1 is in its natural state, the straight-line distance between the two ends of the first insulating element 33b1 in the first direction e1 is less than the length of the first conductive element 33a1. Herein, the "natural state" mentioned in the embodiments of this application refers to the state in which the component is not subjected to external force.

[0212] In this way, the first conductive element 33a1 can be redundantly arranged inside the first insulating element 33b1, which can ensure that the first conductive element 33a1 has a certain deformation space, reduce the stress on the first conductive element 33a1 during the expansion and contraction of the elastic segment D1, effectively prevent the first conductive element 33a1 from being pulled apart, and improve the reliability of the first electrical connector 33.

[0213] For example, the first conductive element 33a1 may include at least one of a cable and a flexible circuit board. The cable includes, but is not limited to, coaxial cable, flexible flat cable (FFC), etc.

[0214] For example, in some embodiments, when the foldable electronic device 100 is in the unfolded state, the length of the elastic segment D1 is 6.7 mm, and when the foldable electronic device 100 is in the folded state, the length of the elastic segment D1 is 9.5 mm, and the stretching ratio of the elastic segment D1 is (9.5-6.7) / 6.7 = 41.7%. By arranging the first conductive element 33a1 meandering along the first direction e1, the tensile force on the first conductive element 33a1 during the stretching process can be effectively reduced.

[0215] Please see Figure 10 , Figure 10 for Figure 9 The top view of the first electrical connector 33 in different states is shown. Figure 10 (a) is a schematic diagram of the first electrical connector 33 in its natural state. Figure 10 (b) is a schematic diagram of the first electrical connector 33 in a stretched state.

[0216] When the first insulating member 33b1 is stretched, the first conductive member 33a1 is pulled apart. When the first insulating member 33b1 contracts, the first conductive member 33a1 also contracts along with it, allowing the first conductive member 33a1 to deform synchronously with the deformation of the first insulating member 33b1 (e.g., stretching, contraction, etc.). Thus, after applying the first electrical connector 33 to the foldable electronic device 100, the first conductive member 33a1 can adapt to the dimensional changes of the foldable electronic device 100 in different states, reducing the stress on the first conductive member 33a1 during the folding process and effectively preventing the first conductive member 33a1 from being damaged.

[0217] In some embodiments, please refer to Figures 9-10 The first conductive element 33a1 extends along a first direction e1 and folds back along a second direction e2. The second direction e2 is perpendicular to the first direction e1. Specifically, the first conductive element 33a1 extends within the plane containing the first direction e1 and the second direction e2. For example, both the first direction e1 and the second direction e2 are perpendicular to the thickness direction of the first insulating element 33b1. This facilitates a planar design of the first conductive element 33a1, reducing its volume, and thus facilitates a flattened design of both the first conductive element 33a1 and the first electrical connector 33, further reducing the volume and space occupied by the first electrical connector 33. On the other hand, the length change of the first conductive element 33a1 in a single direction can be decomposed into length changes in two directions, thereby reducing the rate of change of the length of the first conductive element 33a1 in a single direction, extending the bending and tensile life of the first conductive element 33a1, and thus extending the life of the elastic segment D1.

[0218] Therefore, the first electrical connector 33 in this embodiment, by setting the aforementioned elastic segment D1, can adapt to the shape changes of the foldable electronic device 100 through the deformation of the elastic segment D1, thereby reducing the tensile stress on the first electrical connector 33 and improving its reliability, which in turn improves the reliability of the electrical connection between the first circuit board 31 and the second circuit board 32. On the other hand, by setting the elastic segment D1, it is also beneficial to reduce the redundant length of the first electrical connector 33, thereby reducing the overall length of the first electrical connector 33, which in turn reduces the resistance of the first electrical connector 33 and reduces the space occupied by the first electrical connector 33. Furthermore, it is also beneficial to achieve a flattened design of the first electrical connector 33, thereby further reducing the volume and space occupied by the first electrical connector 33, which in turn further reduces the volume of the foldable electronic device 100 and achieves a miniaturized design of the foldable electronic device 100.

[0219] In some embodiments, please refer to Figures 9-10The first electrical connector 33 may also include a non-elastic segment D2. When the foldable electronic device 100 switches between an unfolded state and a folded state, the non-elastic segment D2 does not undergo elastic deformation. That is, in this embodiment, a portion of the first electrical connector 33 is formed as an elastic segment D1. It is understood that in other embodiments, the first electrical connector 33 may not include the non-elastic segment D2; in this case, the entire first electrical connector 33 is the elastic segment D1.

[0220] Please see Figures 9-10 In some embodiments, the non-elastic segment D2 may include a second conductive element 33a2 and a second insulating element 33b2. The second conductive element 33a2 is fixed to the second insulating element 33b2, and the second conductive element 33a2 is electrically connected to the first conductive element 33a1. That is, the conductive element 33a includes the second conductive element 33a2, and the insulating element 33b includes the second insulating element 33b2. The second conductive element 33a2 and the second insulating element 33b2 can be fixed by means of bonding, snap-fitting, heat pressing, etc.

[0221] The structure and materials of the second insulating member 33b2 can be the same as those of the first insulating member 33b1 in any embodiment of this application. In some embodiments, the second insulating member 33b2 and the first insulating member 33b1 can be integrally formed. This simplifies the processing technology of the first electrical connector 33. In other embodiments, the first insulating member 33b1 and the second insulating member 33b2 can also be separate parts. In this case, the second insulating member 33b2 and the first insulating member 33b1 can be connected by bonding, secondary injection molding, or the first insulating member 33b1 and the second insulating member 33b2 can also be not connected. In still other embodiments, the non-elastic segment D2 may not include the second insulating member 33b2.

[0222] The second conductive element 33a2 can be straight, curved, or zigzag.

[0223] The second conductive element 33a2 and the first conductive element 33a1 can be integrally formed. For example, the second conductive element 33a2 and the first conductive element 33a1 can be the same cable or the same flexible circuit board. It is understood that in other embodiments, the second conductive element 33a2 and the first conductive element 33a1 can also be separate parts. In this case, the first conductive element 33a1 and the second conductive element 33a2 can be fixed together by welding, bonding or other methods.

[0224] Please see Figure 10The first conductive element 33a1 includes at least one meandering unit E. In some embodiments, the meandering unit E includes a first extension segment E1 and a second extension segment E2 arranged in a first direction e1, and a third extension segment E3 connecting the first extension segment E1 and the second extension segment E2. The first extension segment E1 and the second extension segment E2 may be spaced apart in the first direction e1. A recess is formed between the first extension segment E1, the second extension segment E2 and the third extension segment E3, and the opening of the recess is opposite to the third extension segment E3 in the second direction e2. The third extension segment E3 may be formed as a crest or trough of the first conductive element 33a1.

[0225] The first extension segment E1 can be formed as a straight line segment, a curved segment, an arc segment, etc. Similarly, the second extension segment E2 and the third extension segment E3 can also be formed as straight line segments, curved segments, arc segments, etc. For example, the meandering unit E can be generally formed as a U-shape, V-shape, C-shape, etc.

[0226] Please see Figure 10 In (a) and (b), when the first insulating member 33b1 is stretched, the meandering unit E is stretched, and the first extension segment E1 and the second extension segment E2 move away from each other, increasing the opening of the recess in the meandering unit E. When the first insulating member 33b1 contracts, the meandering unit E returns to its original shape, and the first extension segment E1 and the second extension segment E2 move closer to each other, decreasing the opening of the recess in the meandering unit E. This facilitates the deformation of the first conductive member 33a1, and the structure is simple and easy to manufacture.

[0227] Please see Figure 11 and combined Figure 12 , Figure 11 for Figure 9 The exploded view of the first electrical connector 33 shown. Figure 12 for Figure 9 The diagram shows a cross-sectional view of the first electrical connector 33 at the BB line. A first insulating member 33b1 has a first cavity Q4, and a first conductive member 33a1 is disposed within the first cavity Q4. Each first insulating member 33b1 may include one or more first cavities Q4, and each first cavity Q4 may contain one or more first conductive members 33a1. For example, multiple first conductive members 33a1 may be arranged in the second direction e2. Alternatively, in other embodiments, multiple first conductive members 33a1 may be arranged in the third direction e3.

[0228] For example, in Figure 12In the illustrated embodiment, four cables (i.e., four first conductive elements 33a1) are provided in one first cavity Q4. Of course, the specific number of first conductive elements 33a1 can be adjusted according to actual needs. Furthermore, in practical applications, the wire diameter or the thickness of the flexible circuit board can be adjusted according to the assembly space of the first electrical connector 33, and different tensile forces and strengths can be accommodated by adjusting the wire diameter. The wire diameter of the cables in different sections of the same first electrical connector 33 can be the same or different.

[0229] In some embodiments, please refer to Figures 11-12 The first insulating member 33b1 includes opposing first and second portions F1 and F2, both of which can be generally sheet-like or plate-like. The first conductive member 33a1 can be clamped and fixed between the first and second portions F1 and F2. For example, the first and second portions F1 and F2 can be arranged in a third direction e3. The third direction e3 is perpendicular to the first direction e1, and the third direction e3 is perpendicular to the second direction e2. The thickness direction of both the first and second portions F1 and F2 can be parallel to the third direction e3. The thickness direction of the first insulating member 33b1 can also be parallel to the third direction e3.

[0230] Please see Figure 12 The first segment F1 has a first recessed groove F11, and the second segment F2 has a second recessed groove F21. The first recessed groove F11 and the second recessed groove F21 are opposite to and connected to each other, so as to form a first cavity Q4 between the first segment F1 and the second segment F2. In this way, after the first segment F1 and the second segment F2 are connected, the first cavity Q4 can be formed between the first segment F1 and the second segment F2.

[0231] The first split part F1 and the second split part F2 can be formed by processes such as drawing and injection molding. The first split part F1 and the second split part F2 can be connected by methods such as hot pressing. This helps to improve the overall structural strength of the first insulating component 33b1 and prevents the first split part F1 and the second split part F2 from separating.

[0232] In some embodiments, the shape of the first recessed groove F11 can be adapted to the shape of the first conductive element 33a1. In this way, the first recessed groove F11 can play a positioning role, which helps to reduce the assembly difficulty of the first electrical connector 33.

[0233] It is understood that in other embodiments, the first recessed groove F11 may be provided only on the first split portion F1, or the second recessed groove F21 may be provided only on the second split portion F2. In this way, a first cavity Q4 can still be formed between the first split portion F1 and the second split portion F2. Furthermore, in other embodiments, the first insulating member 33b1 may only include the first split portion F1. In this case, a portion of the first conductive member 33a1 may be exposed outside the first insulating member 33b1.

[0234] In some embodiments, the first conductive element 33a1 can be laid on the surface of the first split portion F1. For example, the first conductive element 33a1 can be laid on the inner wall surface of the first cavity Q4. In this way, a planar design of the first conductive element 33a1 can be achieved, thereby achieving a flat design of the first electrical connector 33 and reducing the thickness of the first electrical connector 33, thereby reducing the volume and space occupied by the first electrical connector 33.

[0235] For facilitating the tensile deformation of the first insulating element 33b1, please refer to [link / reference needed]. Figures 9-12 The first insulating member 33b1 is provided with a first stress relief hole K21. The first stress relief hole K21 is located on the circumferential outer side of the first conductive member 33a1 and penetrates through the first outer surface r1 and the second outer surface v1 of the first insulating member 33b1 that are opposite to each other. The arrangement direction of the first outer surface r1 and the second outer surface v1 is perpendicular to the first direction e1. That is, the first stress relief hole K21 is a through hole. Exemplarily, the first outer surface r1 and the second outer surface v1 may be opposite to each other in the third direction e3. The first outer surface r1 may be formed in the first split portion F1, and the second outer surface v1 may be formed in the second split portion F2. It is understood that in other embodiments, the first outer surface r1 and the second outer surface v1 may also be opposite to each other in the second direction e2.

[0236] This reduces the stiffness of the first insulating member 33b1, thereby reducing its ability to resist elastic deformation. As a result, when a small force is applied to the elastic segment D1, the elastic segment D1 can be stretched and deformed, which helps to improve the folding feel of the foldable electronic device 100.

[0237] In some embodiments, the orthographic projection of the first stress relief hole K21 on the first outer surface r1 does not overlap with the orthographic projection of the first conductive element 33a1 on the first outer surface r1. This reduces the ability of the first insulating element 33b1 to resist elastic deformation while simultaneously reducing the thickness of the first insulating element 33b1, thereby reducing the overall thickness of the elastic segment D1.

[0238] In some embodiments, please refer to Figures 9-12The opening of the first stress relief hole K21 is a closed ring. For example, when the first insulating component 33b1 is in its natural state, the opening of the first stress relief hole K21 can be circular, elliptical, polygonal, etc. This helps to prevent the opening of the first stress relief hole K21 from tearing during the tensile process and can improve the overall structural strength of the first insulating component 33b1.

[0239] Of course, in other embodiments, the opening of the first stress relief hole K21 can also be formed as an open ring. For example, when the first insulating member 33b1 is in its natural state, the opening of the first stress relief hole K21 can be U-shaped, V-shaped, C-shaped, etc. The shape, size, location, and number of the first stress relief hole K21 can all be adjusted and designed according to actual conditions.

[0240] Based on any of the above embodiments, in order to improve the uniformity of stress on the first insulating member 33b1, multiple sets of first stress relief holes K21 are provided, with each set including two symmetrically arranged first stress relief holes K21. This allows for more uniform deformation of the first insulating member 33b1, which is beneficial for extending the service life of the first insulating member 33b1.

[0241] In some embodiments, please refer to Figure 11 and Figure 12 The first conductive element 33a1 can be a group, and each group of first conductive elements 33a1 can include multiple cables or flexible circuit boards. In other embodiments, please refer to... Figure 13 , Figure 13 This is a schematic diagram of the structure of the elastic segment D1 provided in other embodiments of this application. The first conductive element 33a1 can also be in multiple sets, with multiple sets of first conductive elements 33a1 arranged in the second direction e2. For example, adjacent sets of first conductive elements 33a1 can be spaced apart in the second direction e2.

[0242] For example, such as Figure 13 As shown in (a), the extension directions of two adjacent sets of first conductive elements 33a1 can be consistent. In this case, the openings of the pits in different sets of first conductive elements 33a1 face the same direction. This helps to reduce the superposition size of multiple sets of first conductive elements 33a1 in the second direction e2, thereby helping to reduce the width of the elastic segment D1.

[0243] For example, such as Figure 13 As shown in (b), two adjacent sets of first conductive elements 33a1 can also be arranged symmetrically. In this case, the openings of the recesses in the first conductive elements 33a1 of different sets are opposite each other. This helps to increase the spacing between the partial meandering units E in the two sets of first conductive elements 33a1, thereby improving the signal isolation between the different sets of first conductive elements 33a1.

[0244] Please see Figure 14 , Figure 14 This is a cross-sectional schematic diagram of a first conductive element 33a1 provided in some embodiments of this application. In this embodiment, the first conductive element 33a1 is a cable, such as... Figure 14 As shown in (a) above, the cable can be a bare wire core t1. (As...) Figure 14 As shown in (b), the cable may include a bare wire core t1 and a first insulation layer t2, the first insulation layer t2 covering the bare wire core t1. Figure 14 As shown in (c), the first conductive element 33a1 includes a bare wire core t1 and a first insulating layer t2, as well as a first grounding layer t3, which is disposed outside the first insulating layer t2. Figure 14 As shown in (d), in addition to the bare wire core t1, the first insulation layer t2 and the first grounding layer t3, the cable also includes a second insulation layer t4, which wraps around the first grounding layer t3.

[0245] The materials of the first insulating layer t2 and the second insulating layer t4 can both include at least one of polytetrafluoroethylene (PTFE), polyethylene (PE), polyvinyl chloride (PVC), polyurethane (PU), silicone, and rubber. The bare wire core t1 can be a metal wire, such as stainless steel (SUS) wire, titanium-copper alloy (TiCu) wire, gold wire, copper wire, silver wire, etc. The first grounding layer t3 is a metal layer. For example, the first grounding layer t3 is a copper layer.

[0246] It is understandable that when the first conductive element 33a1 includes a flexible circuit board, the first conductive element 33a1 may also include the first ground layer t3, or may not include the first ground layer t3.

[0247] In some embodiments, to improve the signal isolation of the first electrical connection 33, please refer to... Figure 15 , Figure 15 A cross-sectional view of the elastic segment D1 provided for other embodiments of this application. For example... Figure 15 As shown in (a)-(e), a first shielding layer P1 is provided on the first outer surface r1 of the first insulating member 33b1, and a second shielding layer P2 is provided on the second outer surface v1. The first shielding layer P1 and the second shielding layer P2 are electrically connected. For example, both the first shielding layer P1 and the second shielding layer P2 are metal plating layers (e.g., copper layers).

[0248] The first shielding layer P1 can cover the entire surface of the first outer surface r1 or a portion of the surface of the first outer surface r1. Similarly, the second shielding layer P2 can cover the entire surface of the second outer surface v1 or a portion of the surface of the second outer surface v1.

[0249] In this way, the first shielding layer P1 and the second shielding layer P2 can form the external ground network of the first electrical connector 33. On the one hand, it can isolate the first conductive element 33a1 from external signals, reduce the interference of external signals to the first conductive element 33a1, and at the same time reduce the interference of the first conductive element 33a1 to external signals, which is beneficial to improving the signal quality of the first electrical connector 33. On the other hand, it is also beneficial to achieve impedance matching of the first conductive element 33a1, thereby improving the signal stability of the first electrical connector 33.

[0250] In some embodiments, please refer to Figure 15 In (a)-(e), the surface of the first segment F1 facing away from the second segment F2 is formed as a first outer surface r1, and the surface of the second segment F2 facing away from the first segment F1 is formed as a second outer surface v1. The first segment F1 also includes a first outer peripheral surface r3 and a first inner surface r2, the first inner surface r2 being opposite to the first outer surface r1 and facing the second segment F2. The first outer peripheral surface r3 connects the first outer surface r1 and the first inner surface r2. The second segment F2 also includes a second outer peripheral surface v3 and a second inner surface v2, the second inner surface v2 being opposite to the second outer surface v1 and facing the first segment F1. The second outer peripheral surface v3 connects the second outer surface v1 and the second inner surface v2.

[0251] To achieve electrical connection between the first shielding layer P1 and the second shielding layer P2, in some embodiments, such as Figure 15 As shown in (a), a first conductive layer P3 is provided on the first inner surface r2, and a second conductive layer P4 is provided on the first outer peripheral surface r3. Both the first conductive layer P3 and the first shielding layer P1 are electrically connected to the second conductive layer P4. Simultaneously, a third conductive layer P5 is provided on the second inner surface v2, and a fourth conductive layer P6 is provided on the second outer peripheral surface v3. Both the third conductive layer P5 and the second shielding layer P2 are electrically connected to the fourth conductive layer P6. The first conductive layer P3, the second conductive layer P4, the third conductive layer P5, and the fourth conductive layer P6 can all be metal plating layers.

[0252] When the first split part F1 is connected to the second split part F2, for example, after pressing the first split part F1 and the second split part F2 together, the first conductive layer P3 can contact the third conductive layer P5 to achieve electrical connection, and the second conductive layer P4 can contact the fourth conductive layer P6 to achieve electrical connection. In this case, the first shielding layer P1 and the second shielding layer P2 can achieve electrical connection through the following two paths: Path 1: First shielding layer P1 → Second conductive layer P4 → Fourth conductive layer P6 → Second shielding layer P2. Path 2: First shielding layer P1 → Second conductive layer P4 → First conductive layer P3 → Third conductive layer P5 → Fourth conductive layer P6 → Second shielding layer P2.

[0253] In other embodiments, such as Figure 15 As shown in (b) and (c), the first sub-part F1 is provided with a third metallized via K33, and the two ends of the first metallized via K33 are electrically connected to the first conductive layer P3 and the first shielding layer P1, respectively. The second sub-part F2 is provided with a second metallized via K32, and the two ends of the second metallized via K32 are electrically connected to the third conductive layer P5 and the second shielding layer P2, respectively. At this time, the first shielding layer P1 and the second shielding layer P2 can be electrically connected through the following path: first shielding layer P1 → third metallized via K33 → first conductive layer P3 → third conductive layer P5 → second metallized via K32 → second shielding layer P2.

[0254] In this case, a second conductive layer P4 can be provided on the first split part F1 (e.g., Figure 15 As shown in (b) in the figure, the second conductive layer P4 can also be omitted (as shown in the figure). Figure 15 (as shown in (c)). Similarly, a fourth conductive layer P6 (as shown in the diagram) can be provided on the second sub-section F2. Figure 15 As shown in (b) in the figure, the fourth conductive layer P6 can also be omitted (as shown in the figure). Figure 15 (as shown in (c)).

[0255] It should be noted that the "metallized via" mentioned in the embodiments of this application refers to a structure formed by setting a metal plating layer on the inner wall surface of the via, or by setting a conductive structure such as a metal pillar or silver paste inside the via.

[0256] In some other embodiments, such as Figure 15 As shown in (d) and (e), the first insulating member 33b is provided with a first metallized via K31, and the two ends of the first metallized via K31 are electrically connected to the first shielding layer P1 and the second shielding layer P2, respectively. In this case, the first shielding layer P1 and the second shielding layer P2 can be electrically connected through the first metallized via K31. The first metallized via K31 in this embodiment can be applied to the elastic segment D1 in any embodiment of this application.

[0257] In some other embodiments, such as Figure 15 As shown in (e), when the first metallized via K31 is provided on the first insulating member 33b1, the first conductive layer P3 does not need to be provided on the first split part F1, and the third conductive layer P5 does not need to be provided on the second split part F2. In this way, the electrical connection between the first shielding layer P1 and the second shielding layer P2 can still be achieved.

[0258] In some embodiments, when the first insulating member 33b1 includes a plurality of first cavities Q4, the first metallized via K31 can be located between two adjacent first cavities Q4. In this way, the first metallized via K31 can also isolate the first conductive member 33a1 in two adjacent first cavities Q4, which is beneficial to further improve the signal isolation of the first electrical connector 33.

[0259] In some embodiments, when the first conductive element 33a1 includes a first ground layer t3, the first ground layer t3 can be electrically connected to the first shielding layer P1 and / or the second shielding layer P2. This further reduces interference from external signals to the first conductive element 33a1 and further reduces interference from the first conductive element 33a1 to the outside world, thereby further improving the signal quality of the first electrical connector 33.

[0260] Because the first shielding layer P1 and the second shielding layer P2 are at risk of cracking during the expansion and contraction of the first insulating member 33b1, this may affect the electrical connection between the first shielding layer P1 and the second shielding layer P2, and thus potentially reduce the shielding effect. In some embodiments, the following methods can be adopted to improve the reliability of the electrical connection between the first shielding layer P1 and the second shielding layer P2.

[0261] Option 11: Please refer to Figure 16 , Figure 16 Schematic diagrams of the first insulating member 33b1 in different states provided for some embodiments of this application. Figure 16 In (a), the first insulating element 33b1 is shown in its natural state. Figure 16 In (b) shown, the first insulating member 33b1 is in a stretched state. A plurality of first protrusions r10 are formed on the first outer surface r1 of the first insulating member 33b1, and the plurality of first protrusions r10 are arranged along the first direction e1. For example, the plurality of first protrusions r10 are evenly spaced apart along the first direction e1.

[0262] For details, please refer to Figure 16In (a), the first outer surface r1 includes a first portion r11 and a second portion r12, with the second portion r12 protruding from the first portion r11 to form a first protrusion r10. Exemplarily, both the first portion r11 and the second portion r12 can be formed as arcs. Specifically, the first portion r11 is formed as a concave arc, and the second portion r12 is formed as a convex arc. That is, the first portion r11 is concave relative to the second portion r12 in the direction toward the second outer surface v2, and the second portion r12 is arched relative to the first portion r11 in the direction away from the second outer surface v2. The first outer surface r1 of the first insulating member 33b1 can be generally wavy, and the first shielding layer P1, attached to the first outer surface r1, is also generally wavy.

[0263] Please see Figure 16 In (b), after the first insulating member 33b1 is stretched, compared to the first insulating member 33b1 in its natural state, the height of the second part r12 protruding from the first part r11 becomes smaller, and the slope of the first protrusion r10 becomes gentler. Therefore, by setting the first protrusion r10, the deformation range of the first shielding layer P1 can be reduced, thereby effectively reducing the risk of the first shielding layer P1 being torn.

[0264] In some embodiments, the maximum dimension of the second portion r12 protruding from the first portion r11 is the first dimension h1, that is, the height of the first protrusion r10 is the first dimension h1. The minimum distance between the first portion r11 and the second outer surface v1 in the third direction e3 is the second dimension h2, and the ratio of the first dimension h1 to the second dimension h2 (that is, h1 / h2) is greater than or equal to 2% and less than or equal to 20%. For example, h1 / h2 is 2%, 5%, 8%, 10%, 12%, 15%, 18%, 20%, etc. In this way, the ability of the first insulating member 33b1 to resist elastic deformation can be reduced, making it easier to deform the first insulating member 33b1, and reducing the processing difficulty of the first insulating member 33b1.

[0265] Similarly, to reduce the risk of cracking in the second shielding layer P2, a second protrusion v10 is formed on the second outer surface v1. Specifically, the second outer surface v1 includes a third portion v11 and a fourth portion v12, with the fourth portion v12 protruding from the third portion v11 to form the second protrusion v10. The shape and size of the second protrusion v10 can be designed with reference to the first protrusion r10. In some embodiments, the first protrusion r10 and the second protrusion v10 are symmetrically arranged, which can improve the uniformity of stress on the first insulating member 33b1 and further reduce the risk of cracking in the first shielding layer P1 and the second shielding layer P2.

[0266] Option 12: Please refer to Figure 17 , Figure 17A top view of the first insulating member 33b1 provided for some embodiments of this application. Figure 17 In (a), the first insulating element 33b1 is shown in its natural state. Figure 17 The first insulating element 33b1 shown in (b) is in a stretched state. Figure 17 The top view in the diagram refers to a schematic diagram looking from the first outer surface r1 of the first insulating member 33b1 towards the second outer surface v1.

[0267] like Figure 17 As shown in (a), the first shielding layer P1 is distributed in a grid pattern on the first outer surface r1. Specifically, the first shielding layer P1 includes a plurality of parallel and spaced-apart first sub-plating layers P11 and a plurality of parallel and spaced-apart second sub-plating layers P12, which are staggered to form a grid structure. For example, the angle between the extension direction of the first sub-plating layer P11 and the first direction e1 is greater than 0 degrees and less than or equal to 90 degrees, and the extension direction of the second sub-plating layer P12 is not parallel to the extension direction of the first sub-plating layer P12. For example, the extension direction of the second sub-plating layer P12 is perpendicular to the extension direction of the second sub-plating layer P12.

[0268] In this way, the deformation of the first shielding layer P1 can also be reduced, thereby effectively reducing the risk of the first shielding layer P1 being torn.

[0269] Similarly, the second shielding layer P2 can be distributed in a grid pattern on the second outer surface v1.

[0270] It is understandable that Scheme 11 and Scheme 12 can be used in combination or individually.

[0271] Option 13: Please refer to Figure 18 , Figure 18 A side view of a first insulating member 33b1 provided for some embodiments of this application. Wherein, Figure 18 The side view in the diagram refers to a schematic diagram of the first insulating member 33b1 viewed from a perspective parallel to the first direction e1. In its natural state, the first insulating member 33b1 has an angle α between its central axis O1 and the first direction e1 that is greater than 0 degrees and less than 90 degrees. For example, α can be 5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees, 30 degrees, 35 degrees, 45 degrees, 50 degrees, 60 degrees, 70 degrees, 80 degrees, 85 degrees, etc. This reduces the deformation of the first metallized via K31 during the stretching process, effectively preventing cracking of the metal plating in the first metallized via K31, and thus improving the reliability of the electrical connection between the first shielding layer P1 and the second shielding layer P2.

[0272] Similarly, the angle between the central axis of the second metallized via K32 and the first direction e1, and the angle between the central axis of the third metallized via K33 and the first direction e1 can be designed with reference to the angle α between the central axis of the first metallized via K31 and the first direction e1, and will not be elaborated here.

[0273] It is understood that Scheme 13 can be used in combination with at least one of Schemes 11 and 12, or it can be used alone.

[0274] Similarly, in order to improve the signal isolation between the second conductive elements 33a2 in the inelastic segment D2, the first shielding layer P1 and the second shielding layer P2 described above can also be provided on the inelastic segment D2, and the first shielding layer P1 and the second shielding layer P2 in the inelastic segment D2 can be electrically connected by at least one of the schemes 11 to 13.

[0275] In some embodiments, the first electrical connector 33 may be manufactured using the following processing method.

[0276] Winding: Provide conductive element 33a, wind conductive element 33a into a target shape to form first conductive element 33a1 and second conductive element 33a2.

[0277] Assemble the connector: Assemble the connector at both ends of the conductive element 33a. The connector includes at least one of the following: terminal block, ZIF connector, and BTB connector.

[0278] Attaching release paper: Attaching release paper to the conductive part 33a wound into the target shape.

[0279] A single sheet of silicone is extruded to form the first insulating part.

[0280] First mechanical treatment: The first insulating part is subjected to the first mechanical treatment (including drilling, grooving, etc.) to form the first recessed groove F11, the first through hole, etc. on the first insulating part.

[0281] First surface treatment: A first surface treatment is performed on the first insulating portion to form a metal plating layer on the first insulating portion. This metal plating layer may include a first shielding layer P1, a third metallized via K33, a first conductive layer P3, and a second conductive layer P4. The surface treatment method includes at least one of electroless plating, spray plating, electroplating, and physical vapor deposition (PVD).

[0282] Punching: The first insulating part with a metal coating is punched into the target shape.

[0283] Assemble the conductive component 33a: Place the conductive component 33a and the release paper attached to it together into the first recessed groove F11. In some embodiments, to facilitate positioning of the conductive component 33a, a first positioning hole can be provided on the release paper of the conductive component 33a, and a first positioning post for engaging with the first positioning hole can be provided on the first insulating portion. This improves the positional accuracy of the conductive component 33a and reduces the assembly difficulty.

[0284] Assemble the second insulating part: Provide a second insulating part, on which a second shielding layer P2, a second metallized via K32, a third conductive layer P5 and a fourth conductive layer P6 are formed. The second insulating part and the first insulating part are connected together by a hot pressing process to form a first blank.

[0285] The preparation method of the second insulating part can be the same as that of the first insulating part, and will not be described in detail here.

[0286] Deburring process: Trim the first blank to remove the burrs on the first blank.

[0287] Second mechanical treatment: The first blank is subjected to a second mechanical treatment (including drilling, etc.) to form a third through hole on the first blank.

[0288] Second surface treatment: A first metallized through hole K31 is formed on the first blank to obtain the first electrical connector 33.

[0289] Inspection: Inspect the first electrical connector 33.

[0290] In some embodiments, prior to extruding the single sheet of silicone, the process further includes: aerating the liquid silicone during the stirring process. This creates micropores (i.e., air bubbles) in the silicone, which helps reduce the DK and DF values ​​of the insulator 33b.

[0291] In other embodiments, the processing method of the first electrical connector 33 may not include the first mechanical treatment and the first surface treatment. In this case, both the first shielding layer P1 and the second shielding layer P2 can be formed during the second surface treatment. In other embodiments, the processing method of the first electrical connector 33 may not include at least one of the following: applying release paper, punching, and deburring.

[0292] Please see Figures 19-20 , Figure 19 A schematic diagram of the elastic segment D1 provided in some embodiments of this application. Figure 20 for Figure 19 A schematic diagram of the first insulating element 33b1 in the elastic segment D1 shown. In this embodiment, the elastic segment D1 and... Figure 9The difference of the first electrical connector 33 shown is that, in this embodiment, the first insulating member 33b1 in the elastic segment D1 is a woven mesh.

[0293] The first insulating element 33b1 can be wrapped around and fixed to the outside of the first conductive element 33a1. For example... Figure 19 (a) and Figure 20 As shown, when the first insulating element 33b1 is in its natural state, the mesh in the woven net is generally rectangular. Figure 19 As shown in (b), when the first insulating element 33b1 is stretched by an external force, due to its easily deformable characteristics, the grid becomes a parallelogram, the lateral length is stretched, and the elasticity is good.

[0294] The woven mesh has excellent tensile and resilience properties and a long bending life. It can provide elastic deformation recovery force for the elastic segment D1, so that the first electrical connector 33 can adapt well to the shape changes of the foldable electronic device 100 in different states. Moreover, the woven mesh is relatively thin and light, and occupies less space in the whole machine.

[0295] In some embodiments, the first insulating element 33b1 may be woven from fiber threads. The fiber thread material includes at least one selected from polymer resin, carbon fiber, and glass fiber. The polymer resin includes at least one selected from polyurethane, polyester, and polypropylene. Because polymer resin, carbon fiber, and glass fiber have high modulus, they ensure that the woven mesh has good stiffness. Furthermore, preparing the above materials into fiber threads ensures that the woven mesh has good elasticity and high toughness. For example, polyurethane fiber has high elasticity, and its elongation at break can typically reach 400% to 800%.

[0296] Please return to the reference. Figures 8a-8b In some embodiments, the first electrical connector 33 includes a first intermediate segment 335, a first section 331, a second section 332, a third section 333, and a fourth section 334.

[0297] The first intermediate segment 335 is disposed opposite to the intermediate support member 2302. For example, the first intermediate segment 335 and the intermediate support member 2302 are opposite each other in the Z-axis direction. Specifically, the orthographic projection of the first intermediate segment 335 on the first plane overlaps with the orthographic projection of the intermediate support member 2302 on the first plane. For example, the orthographic projection of the first intermediate segment 335 on the first plane lies within the orthographic projection of the intermediate support member 2302 on the first plane. The first plane is perpendicular to the Z-axis direction.

[0298] The third segment 333 and the first segment 331 are located on either side of the first intermediate segment 335. When the foldable electronic device 100 is in the unfolded state, the orthographic projection of the first segment 331 on the first plane lies within the orthographic projection of the first support member 231 on the first plane. The orthographic projection of the third segment 333 on the first plane lies within the orthographic projection of the second support member 232 on the first plane.

[0299] The second segment 332 is connected to the end of the first segment 331 furthest from the first intermediate segment 335, and a portion of the second segment 332 may be located within the first housing 21. The first electrical connector 33 can be electrically connected to the first circuit board 31 via the second segment 332. The fourth segment 334 is connected to the end of the third segment 333 furthest from the first intermediate segment 335, and a portion of the fourth segment 334 is located within the second housing 22. The first electrical connector 33 can be electrically connected to the second circuit board 32 via the fourth segment 334.

[0300] When the foldable electronic device 100 is in the unfolded state, the orthographic projection of the second section 332 on the first plane does not overlap with the orthographic projection of the first support member 231 on the first plane, and the orthographic projection of the fourth section 334 on the first plane does not overlap with the orthographic projection of the second support member 232 on the first plane.

[0301] Please see Figures 21-22 , Figure 21 for Figure 8a The diagram shows the assembly of the first electrical connector 33 and the folding mechanism 23 in the foldable electronic device 100. Figure 22 for Figure 21 The assembly diagram shown is a schematic diagram in the folded state. The first section 331 includes a first left side portion 331a and a first right side portion 331b connected together. The first right side portion 331b is located between the first left side portion 331a and the first middle section 335. That is, the first right side portion 331b can be located on the side of the first left side portion 331a closer to the second main body portion 202.

[0302] The first right-side portion 331b can be formed as an elastic segment D1. In this way, when the foldable electronic device 100 switches between the unfolded state and the folded state, the expansion and contraction of the first right-side portion 331b can adapt to the change in the gap between the first support member 231 and the intermediate support member 2302, which helps to avoid the breakage of the first electrical connector 33 and thus improves the reliability of the first electrical connector 33.

[0303] In some embodiments, the first conductive element 33a1 in the first segment 331 extends in a second plane, which is perpendicular to the thickness direction of the first support member 231. For example, the stretchable direction (i.e., the first direction e1) of the first right side portion 331b is parallel to the width direction of the first support member 231. When the foldable electronic device 100 is in the unfolded state, the stretchable direction of the first right side portion 331b can be parallel to the X-axis direction, and the folding direction (i.e., the second direction e2) of the first conductive element 33a1 in the first right side portion 331b is parallel to the axis of rotation of the first main body portion 201 relative to the second main body portion 202. This facilitates reducing the thickness of the first right side portion 331b, thereby reducing the combined thickness of the first right side portion 331b and the first support member 231, and further facilitating the thinner design of the foldable electronic device 100.

[0304] In some embodiments, at least a portion of the first left-side portion 331a is fixed to the first support member 231. That is, a portion of the first segment 331 is fixed to the first support member 231. Specifically, a portion of the first left-side portion 331a can be fixed to the first support member 231, or the entire first left-side portion 331a can be fixed to the first support member 231. In this case, at least a portion of the first left-side portion 331a can be formed as a non-elastic segment D2. Exemplarily, the first left-side portion 331a and the first support member 231 can be fixed by means of adhesion, snap-fit, fastener connection, etc.

[0305] Since the first right-side portion 331b is connected to the first left-side portion 331a, by fixing at least a portion of the first left-side portion 331a to the first support member 231, on the one hand, when the first support member 231 rotates relative to the base 230, the first support member 231 can drive the first left-side portion 331a to move together, thereby causing the first right-side portion 331b to deform through the first left-side portion 331a. This allows the first right-side portion 331b to deform in a timely manner during the folding process of the foldable electronic device 100, adapting to changes in the shape of the foldable electronic device 100. This helps to prevent the first electrical connector 33 from breaking due to pulling. This is beneficial to improving the reliability of the first electrical connector 33. On the other hand, since the first left side portion 331a is fixed to the first support member 231 during the switching between the unfolded and folded states of the foldable electronic device 100, no deformation is required. Therefore, at least some of the conductive elements 33a in the first left side portion 331a do not need to be redundant. This is beneficial to reducing the overall length and redundant length of the conductive elements 33a in the first electrical connector 33, thereby reducing the resistance and insertion loss of the first electrical connector 33, reducing the impedance fluctuation of the first electrical connector 33, improving the consistency of insertion loss, improving the charging efficiency of the battery, and reducing the grounding impedance.

[0306] In addition, since the first support member 231 is located close to the folding screen 10, the distance between the first support member 231 and the folding screen 10 is small. Fixing a part of the first section 331 to the first support member 231 also helps to reduce the distance between the first section 331 and the folding screen 10, making the bending radius of the first electrical connector 33 closer to the bending radius of the folding screen 10. This helps to further reduce the overall length and bending radius of the first electrical connector 33, and a small amount of redundancy is sufficient to meet the bending and stretching requirements of the first electrical connector 33. This, in turn, helps to reduce the resistance and insertion loss of the first electrical connector 33, and also helps to reduce the space occupied by the first electrical connector 33, thereby facilitating the thin design of the foldable electronic device 100.

[0307] It is understood that in other embodiments, the first left-side portion 331a may also be formed as an elastic segment D1. That is, the entire first segment 331 is an elastic segment D1. In addition, in other embodiments, the entire first segment 331 may be fixed to the first support member 231. Alternatively, the first left-side portion 331a may be formed as an elastic segment D1, and the first right-side portion 331b may be fixed to the first support member 231.

[0308] The structure of the third segment 333, the connection relationship, connection method, and positional relationship between the third segment 333 and the second support member 232 can all be designed with reference to the structure of the first segment 331, the connection relationship, connection method, and positional relationship between the first segment 331 and the first support member 231 in any embodiment of this application. Furthermore, in the same embodiment, the structure of the third segment 333, the connection relationship, connection method, and positional relationship between the third segment 333 and the second support member 232 can be the same as, or different from, the structure of the first segment 331, the connection relationship, connection method, and positional relationship between the first segment 331 and the first support member 231.

[0309] In some embodiments, at least a portion of the first intermediate segment 335 is fixed to the base 230. Specifically, a portion of the first intermediate segment 335 is fixed to the base 230, or the entire first intermediate segment 335 is fixed to the base 230.

[0310] For example, please refer to Figures 21-22The first intermediate segment 335 includes a intermediate portion 335a, a second left-side portion 335b, and a second right-side portion 335c. The intermediate portion 335a connects the second left-side portion 335b and the second right-side portion 335c. The second left-side portion 335b may be located between the intermediate portion 335a and the first segment 331. The second right-side portion 335c may be located between the intermediate portion 335a and the third segment 333. That is, the second left-side portion 335b is located on the side of the intermediate portion 335a away from the second main body portion 202, and the second right-side portion 335c is located on the side of the intermediate portion 335a away from the first main body portion 201.

[0311] Please see Figure 21 and combined Figure 22 The middle portion 335a is fixed to the base 230. Exemplarily, the middle portion 335a can be fixed to the middle support 2302. It is understood that in other embodiments, the middle portion 335a can also be fixed to the shaft cover 2301.

[0312] In this way, on the one hand, the sections on both sides of the first right side portion 331b of the first section 331 in the first electrical connector 33 are fixed, which facilitates the deformation of the first right side portion 331b to adapt to the changes in the form of the foldable electronic device 100; on the other hand, it is beneficial to further reduce the overall length and redundant length of the first electrical connector 33, thereby reducing the resistance and insertion loss of the first electrical connector 33, reducing the impedance fluctuation of the first electrical connector 33, improving the consistency of insertion loss, improving the charging efficiency of the battery, and reducing the grounding impedance; furthermore, it is also beneficial to control the bending path and bending shape of the first electrical connector 33, which helps to reduce the space occupied by the first electrical connector 33.

[0313] In some embodiments, the second left-side portion 335b is an elastic segment D1. This allows the foldable electronic device 100 to adapt to changes in the gap between the first support member 231 and the intermediate support member 2302 by deforming the second left-side portion 335b when switching between an unfolded and folded state. Furthermore, when the first right-side portion 331b is also formed as an elastic segment D1, it helps to reduce the deformation of both the first right-side portion 331b and the second left-side portion 335b, thereby effectively preventing failure of the elastic segment D1 and improving the reliability of the first electrical connector 33.

[0314] It is understandable that if the second left portion 335b is an elastic segment D1, the first right portion 331b in the first segment 331 can also be a non-elastic segment D2. It is sufficient that at least one of the second left portion 335b and the first right portion 331b is an elastic segment D1. Alternatively, in other embodiments, the second left portion 335b can also be fixed to the base 230.

[0315] The structure of the second right side portion 335c and the connection relationship between the second right side portion 335c and the intermediate support member 2302 can be designed with reference to the structure of the second left side portion 335b and the connection relationship between the second right side portion 335c and the intermediate support member 2302 in any embodiment of this application, and will not be described in detail here.

[0316] Please see Figure 21 The first electrical connector 33 further includes a first bendable segment 336 and a second bendable segment 338. The first bendable segment 336 is connected between the first section 331 and the first intermediate section 335. The second bendable segment 338 is connected between the first intermediate section 335 and the third section 333. During the switching between the unfolded state and the foldable electronic device 100, the first bendable segment 336 and the second bendable segment 338 can be bent.

[0317] In some embodiments, when the foldable electronic device 100 is in the unfolded state, the orthographic projection of the first bendable segment 336 on the first plane overlaps with the orthographic projection of the first gap J1 on the first plane, and the orthographic projection of the second bendable segment 338 on the first plane overlaps with the orthographic projection of the third gap J3 on the first plane. For example, the orthographic projection of the first bendable segment 336 on the first plane may be located within the orthographic projection of the first gap J1 on the first plane, and the orthographic projection of the second bendable segment 338 on the first plane may be located within the orthographic projection of the third gap J3 on the first plane.

[0318] For example, when the foldable electronic device 100 is in the unfolded state, at least a portion of the first bendable segment 336 may be located within the first gap J1, and at least a portion of the second bendable segment 338 may be located within the third gap J3.

[0319] In some embodiments, please refer to Figure 22 When the foldable electronic device 100 is in a folded state, both the first bendable segment 336 and the second bendable segment 338 can be stretched. At this time, both the first bendable segment 336 and the second bendable segment 338 are in a stretched state. It is understood that in other embodiments, when the foldable electronic device 100 is in a folded state, only one of the first bendable segment 336 and the second bendable segment 338 may be stretched.

[0320] In this way, the foldable electronic device 100 can adapt to changes in size and shape not only through the deformation of the elastic segment D1 in the first section 331 and / or the first intermediate section 335, but also through the tensile deformation of the first bendable segment 336 and / or the second bendable segment 338. This helps to reduce the elastic deformation of the elastic segment D1, avoid failure of the elastic segment D1, and thus improve the reliability of the elastic segment D1, thereby improving the reliability of the first electrical connector 33.

[0321] In some embodiments, for facilitating the stretching of the first bendable segment 336, please refer to... Figure 21 When the foldable electronic device 100 is in the unfolded state, the first bendable segment 336 is redundantly disposed between the first segment 331 and the first intermediate segment 335. For example, the length of the first bendable segment 336 in the stretched state is greater than the width of the first gap J1. The width of the first gap J1 refers to the dimension of the first gap J1 in the X-axis direction when the foldable electronic device 100 is in the unfolded state. When the foldable electronic device 100 is in the unfolded state, the first bendable segment 336 can be arc-shaped, S-shaped, U-shaped, V-shaped, Z-shaped, W-shaped, etc.

[0322] In this way, when the foldable electronic device 100 is in a folded state, the redundancy of the first bendable segment 336 is reduced or eliminated, which facilitates the stretching deformation of the first bendable segment 336.

[0323] In some embodiments, the first bendable segment 336 can be a non-elastic segment D2. This reduces the overall length of the conductive element 33a in the first electrical connector 33.

[0324] In other embodiments, the first bendable segment 336 may also be an elastic segment D1. This facilitates tensile deformation within the first bendable segment 336. It is understood that when the first bendable segment 336 is an elastic segment D1, the first bendable segment 336 may or may not be redundantly provided.

[0325] In some embodiments, the following schemes can be adopted to facilitate the bending of the first bendable segment 336.

[0326] Option 21: Please refer to Figure 23 , Figure 23This is a partial structural schematic diagram of the first bendable segment 336 provided in some embodiments of this application. The first bendable segment 336 includes a conductive element 33a and an insulating element 33b. It can be understood that when the first bendable segment 336 is an elastic segment D1, the conductive element 33a of the first bendable segment 336 is a first conductive element 33a1, and the insulating element 33b of the first bendable segment 336 is a first insulating element 33b1. When the first bendable segment 336 is a non-elastic segment D2, the conductive element 33a of the first bendable segment 336 is a second conductive element 33a2, and the insulating element 33b of the first bendable segment 336 can be a second insulating element 33b2.

[0327] The first bendable segment 336 includes a third outer surface m51 and a fourth outer surface m52 facing away from each other. When the foldable electronic device 100 is in a folded state, the third outer surface m51 faces the foldable screen 10. In this embodiment, both the third outer surface m51 and the fourth outer surface m52 are formed on the insulating member 33b. It is understood that in other embodiments, when the foldable electronic device 100 is in a folded state, the third outer surface m51 may also face away from the foldable screen 10.

[0328] The first bendable segment 336 is provided with a fourth stress relief hole K24. The fourth stress relief hole K24 can penetrate at least one of the third outer surface m51 and the fourth outer surface m52. For example, the conductive element 33a in the first bendable segment 336 can be exposed through the fourth stress relief hole K24. That is, the conductive element 33a can be seen from the opening of the fourth stress relief hole K24. In this way, the bending performance of the first bendable segment 336 can be improved, and the breakage of the conductive element 33a in the first bendable segment 336 can be avoided.

[0329] Option 22: The first bendable segment 336 is a cable or a flexible circuit board. That is, the first bendable segment 336 only includes the conductive element 33a, but does not include the insulating element 33b. In this way, the thickness of the first bendable segment 336 can be greatly reduced, and the bending performance of the first bendable segment 336 can also be improved, avoiding the breakage of the conductive element 33a in the first bendable segment 336.

[0330] Based on this, when the first bendable segment 336 is a flexible circuit board, the flexible circuit board may include multiple stacked flexible boards, with an air gap K2 formed between adjacent flexible boards. This further improves the bending performance of the first bendable segment 336 and prevents the conductive component 33a in the first bendable segment 336 from breaking.

[0331] The structure, shape, and dimensional relationship between the second bendable segment 338 and the third gap J3 can be designed with reference to the structure, shape, and dimensional relationship between the first bendable segment 336 and the first gap J1, and will not be elaborated here.

[0332] Additionally, it is understood that in other embodiments, where the first bendable segment 336 is an elastic segment D1 or the first bendable segment 336 is redundantly configured, at least one of the first segment 331 and the first intermediate segment 335 may not include the elastic segment D1. That is, at least one of the first segment 331, the first intermediate segment 335, and the first bendable segment 336 may include the elastic segment D1, or none of the first segment 331, the first intermediate segment 335, and the first bendable segment 336 may include the elastic segment D1, and the first bendable segment 336 is redundantly configured between the first segment 331 and the first intermediate segment 335.

[0333] Please return to the reference. Figure 8a When the foldable electronic device 100 is in the unfolded state, a second gap J2 exists between the first main body 201 and the first support member 231, and a fourth gap J4 exists between the second main body 202 and the second support member 232. The second gap J2 is located on the side of the first support member 231 away from the intermediate support member 2302, and the fourth gap J4 is located on the side of the second support member 232 away from the intermediate support member 2302. For example, the second gap J2 is formed between the first housing 21 and the first support member 231, and the fourth gap J4 is formed between the second housing 22 and the second support member 232.

[0334] The first electrical connector 33 further includes a first deformable segment 337 and a second deformable segment 339. The first deformable segment 337 is connected between the second segment 332 and the first segment 331, and the second deformable segment 339 is connected between the third segment 333 and the fourth segment 334. When the foldable electronic device 100 is in the unfolded state, the orthographic projection of the first deformable segment 337 in the first plane overlaps with the orthographic projection of the second gap J2 in the first plane. The orthographic projection of the second deformable segment 339 in the first plane overlaps with the orthographic projection of the fourth gap J4 in the first plane. For example, when the foldable electronic device 100 is in the unfolded state, the orthographic projection of the first deformable segment 337 in the first plane is located within the orthographic projection of the second gap J2 in the first plane. The orthographic projection of the second deformable segment 339 in the first plane is located within the orthographic projection of the fourth gap J4 in the first plane.

[0335] In some embodiments, the first deformable segment 337 and the second deformable segment 339 are formed as an elastic segment D1. See also... Figure 8a and combined Figure 8bWhen the foldable electronic device 100 switches from an unfolded state to a folded state, the angle of rotation of the first support member 231 relative to the intermediate support member 2302 is greater than the angle of rotation of the first main body 201 relative to the intermediate support member 2302, and the angle of rotation of the second support member 232 relative to the intermediate support member 2302 is greater than the angle of rotation of the second main body 202 relative to the intermediate support member 2302. Therefore, when the foldable electronic device 100 switches between the unfolded and folded states, the gap size between the first main body 201 and the first support member 231 changes, and the gap size between the second main body 202 and the second support member 232 also changes.

[0336] In this way, the expansion and contraction of the first deformable segment 337 can adapt to the size change of the gap between the first main body 201 and the first support member 231, and the deformation of the second deformable segment 339 can adapt to the size change of the gap between the second main body 202 and the second support member 232, which helps to avoid the breakage of the first electrical connector 33 and thus improves the reliability of the first electrical connector 33.

[0337] Of course, in other embodiments, the size of the second gap J2 may remain unchanged during the switching between the unfolded and folded states of the foldable electronic device 100. In this case, the first electrical connector 33 may or may not include the first deformable segment 337. Similarly, the size of the fourth gap J4 may remain unchanged during the switching between the unfolded and folded states of the foldable electronic device 100. In this case, the first electrical connector 33 may or may not include the second deformable segment 339.

[0338] In some embodiments, in order to facilitate the expansion and contraction of the first deformable segment 337, at least a portion of the second segment 332 is fixed to the first main body 201.

[0339] In other embodiments, a portion of the second segment 332 near the first support 231 may be designated as an elastic segment D1. This allows the first electrical connector 33 to better adapt to dimensional changes in the foldable electronic device 100 under different states.

[0340] The structure, placement, and connection relationship between the fourth segment 334 and the second main body 202 can be designed with reference to the structure, placement, and connection relationship between the second segment 332 and the first main body 201 in any embodiment of this application. For example, at least a portion of the fourth segment 334 can be fixed to the second main body 202. Furthermore, in the same embodiment, the structure, placement, and connection relationship between the fourth segment 334 and the second main body 202 can be the same as or different from the structure, placement, and connection relationship between the second segment 332 and the first main body 201.

[0341] In some embodiments, please refer to Figures 8a-8b A first space Q3 exists between the folding screen 10 and the supporting device 20, and at least a portion of the first electrical connector 33 is disposed within the first space Q3. The first space Q3 includes a first sub-space between the folding screen 10 and the first main body 201, a second sub-space between the folding screen 10 and the second main body 202, and a third sub-space between the folding screen 10 and the folding mechanism 23. Specifically, the entire first electrical connector 33 can be disposed within the first space Q3, or a portion of the first electrical connector 33 can be disposed within the first space Q3.

[0342] In this way, on the one hand, the distance between the first electrical connector 33 and the folding screen 10 can be further reduced, which is conducive to further reducing the overall length, redundant length and elastic segment D1 of the first electrical connector 33. This reduces the resistance and impedance fluctuation of the first electrical connector 33, which is beneficial to reducing grounding impedance, improving battery charging efficiency, and reducing insertion loss and improving insertion loss consistency. On the other hand, it can also make full use of the space between the folding screen 10 and the support device 20, which is beneficial to avoid the first electrical connector 33 occupying the internal space of the support device 20. This not only optimizes the structural layout of the foldable electronic device 100, but also makes the structure of the foldable electronic device 100 more compact, which is beneficial to reducing the overall thickness of the foldable electronic device 100, and thus facilitates the realization of the thin design of the foldable electronic device 100.

[0343] For example, please refer to Figures 8a-8b The first segment 331, the first intermediate segment 335, and the third segment 333 can be located within the first space Q3. Specifically, the first segment 331 is located between the first support member 231 and the foldable screen 10, the first intermediate segment 335 is located between the intermediate support member 2302 and the foldable screen 10, and the third segment 333 is located between the second support member 232 and the foldable screen 10.

[0344] In this way, on the one hand, the overall length, redundant length, and length of the elastic segment D1 of the first electrical connector 33 can be reduced, thereby reducing the insertion loss and impedance fluctuation of the first electrical connector 33; on the other hand, it can also prevent the first electrical connector 33 from occupying the internal space of the folding mechanism 23, avoid interference between the first segment 331 and other structures of the folding mechanism 23 (such as the swing arm), and make the width of the first electrical connector 33 no longer limited by the dimension of the folding mechanism 23 in the Y-axis direction (that is, the length of the folding mechanism 23), which is conducive to increasing the width of the first electrical connector 33, thereby helping to reduce the resistance of the first electrical connector 33 and facilitating the implementation of... The design of multiple transmission lines makes the design of the first electrical connector 33 more flexible. On the other hand, it also helps to reduce the volume of the folding mechanism 23 and optimize the structural layout of the folding mechanism 23, thereby improving the reliability of the folding mechanism 23. Furthermore, the first section 331 and the first intermediate section 335 can both be set on the same side of the thickness direction of the intermediate support 2302, so the first electrical connector 33 does not need to pass through the first gap J1 between the first support 231 and the intermediate support 2302, which helps to reduce the assembly difficulty of the first electrical connector 33, thereby improving the assembly efficiency and assembly yield of the first electrical connector 33.

[0345] It is understood that, in some other embodiments, at least one of the first segment 331, the first intermediate segment 335, and the third segment 333 may also be located outside the first space Q3.

[0346] In some embodiments, in order to reduce the assembly difficulty of the first electrical connector 33 while ensuring the positional accuracy of the first electrical connector 33, a first positioning structure (not shown) can be provided on at least one of the first main body 201, the second main body 202, and the folding mechanism 23, and a second positioning structure (not shown) can be provided on the first electrical connector 33 for cooperating with the first positioning structure. During the assembly process, the positioning of the first electrical connector 33 can be achieved through the cooperation of the first positioning structure and the second positioning structure.

[0347] For example, one of the first positioning structure and the second positioning structure can be a positioning hole, a positioning groove, etc., and the other can be a positioning protrusion, a positioning post, etc.

[0348] In some embodiments, please refer to Figures 8a-8b A portion of the second section 332 is located between the folding screen 10 and the first main body 201. Specifically, a portion of the second section 332 may be located between the folding screen 10 and the first housing 21. This further reduces the overall length and redundant length of the first electrical connector 33, thereby further reducing the insertion loss and impedance fluctuation of the first electrical connector 33.

[0349] Based on this, in order to facilitate the electrical connection between the first electrical connector 33 and the first circuit board 31, in some embodiments, please refer to... Figures 8a-8b The first housing 21 has a first through hole K4, which communicates with the first receiving cavity Q1 and penetrates the surface of the first housing 21 facing the foldable screen 10 (i.e., the first bearing surface a1). A portion of the second section 332 passes through the first through hole K4. This facilitates the electrical connection between the second section 332 and the first circuit board 31, and increases the distance between the gap between the first housing 21 and the shaft cover 2301 and the first through hole K4. This extends the path for liquid to enter the first housing 21 from the gap between the first housing 21 and the shaft cover 2301, thereby improving the waterproof performance of the foldable electronic device 100.

[0350] In some embodiments, the foldable electronic device 100 further includes a first seal (not shown), which is disposed within the first through hole K4 and sealingly connected between the second segment 332 and the wall surface of the first through hole K4. Exemplarily, the first seal can be a rubber component, sealant, etc. This further improves the waterproof performance of the foldable electronic device 100.

[0351] The way in which the fourth section 334 is connected to the second circuit board 32 can be designed with reference to the way in which the second section 332 is connected to the first circuit board 31 in any embodiment of this application, and will not be described again here.

[0352] Since the metal structural components on both sides of the thickness direction of the first electrical connector 33 (such as the support structure 102 of the folding screen 10, the folding mechanism 23, the first housing 21 and the second housing 22, etc.) may interfere with the signal of the first electrical connector 33, the following solutions can be adopted in some embodiments to reduce signal interference.

[0353] Option 31: The conductive element 33a in the easily interfered section of the first electrical connector 33 can be designed as a stripline. For example, the portion of the conductive element 33a located within the first space Q3 can be designed as a stripline. The stripline has reference grounds on both the upper and lower sides of the signal line, which can greatly reduce the interference of the metal structural components on the signal.

[0354] Option 32: The conductive part 33a of the easily interfered section of the first electrical connector 33 can be designed as a microstrip line, and a material with a low DK (e.g., DK less than or equal to 3.5) can be selected to prepare the dielectric layer (e.g., the first dielectric layer and the third dielectric layer) for carrying the signal line, and the thickness of the dielectric layer can be designed to be greater than or equal to 12μm.

[0355] Option 33: Replace the metal structural members on both sides of the thickness direction of the first electrical connector 33 with insulating structural members, or provide an insulating layer on the surface of the metal structural members facing the first electrical connector 33.

[0356] Option 34: Design the conductive part 33a of the easily interfered section of the first electrical connector 33 as a coplanar waveguide or microstrip line, and design the metal structural parts on both sides of the thickness direction of the first electrical connector 33 as the reference ground of the first electrical connector 33. Construct a pseudo-strip line by grounding or coupling.

[0357] Option 35: Design the conductive part 33a of the easily interfered section of the first electrical connector 33 as a cable including the first grounding layer t3.

[0358] Option 36: Provide the aforementioned first shielding layer P1 and second shielding layer P2 on the insulating part 33b of the easily interfered section of the first electrical connector 33.

[0359] It is understandable that the above schemes 31 to 36 can be used individually, or in combination, provided that there is no contradiction between them.

[0360] Based on any of the above embodiments, in order to compensate for insertion loss, please refer to... Figure 24 , Figure 24 This is a simplified schematic diagram of a foldable electronic device 100 provided in some embodiments of this application. A first circuit board 31 has an RF chip 31a, and a second circuit board 32 has an RF front-end module 32a and a calibration module 32b. The calibration module 32b is positioned in front of the RF front-end module 32a, causing the receiving front-end in the RF front-end module 32a to be positioned in front of the feed point of the antenna in the second main body 202. A first electrical connector 33 is electrically connected to both the RF chip 31a and the RF front-end module 32a. In this way, the path loss is only from the RF front-end module 32a to the aforementioned antenna, effectively compensating for the loss of the first electrical connector 33, reducing insertion loss, and thus optimizing RF performance indicators.

[0361] In some other embodiments, please refer to Figures 25-26 , Figure 25 A cross-sectional view of a foldable electronic device 100 in its unfolded state, provided in some embodiments of this application. Figure 26 for Figure 25 The diagram shows a cross-sectional view of the foldable electronic device 100 in its folded state. The foldable electronic device 100 in this embodiment is similar to... Figure 8aThe difference in the foldable electronic device 100 shown is that, in this embodiment, the first deformable segment 337 of the first electrical connector 33 is redundantly disposed between the second segment 332 and the first segment 331. The structure of the first deformable segment 337 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application. The first deformable segment 337 in this embodiment can be either a non-elastic segment D2 or an elastic segment D1.

[0362] For example, the length of the first deformable segment 337 in the stretched state is greater than the width of the second gap J2. The width of the second gap J2 refers to its dimension in the X-axis direction when the foldable electronic device 100 is in the unfolded state. When the foldable electronic device 100 is in the unfolded state, the first deformable segment 337 can be arc-shaped, S-shaped, U-shaped, V-shaped, Z-shaped, W-shaped, etc. For example, when the foldable electronic device 100 is in the unfolded state, at least a portion of the first deformable segment 337 can be located within the second gap J2, and at least a portion of the second deformable segment 339 can be located within the fourth gap J4.

[0363] The shape of the second deformable segment 339 can be designed with reference to the shape of the first deformable segment 337, and will not be described in detail here.

[0364] Please see Figure 25 and combined Figure 26 When the foldable electronic device 100 switches from the unfolded state to the folded state, the first deformable segment 337 is stretched. In this way, the deformation of the first deformable segment 337 can adapt to the size change of the gap between the first main body 201 and the first support member 231, which also helps to avoid the breakage of the first electrical connector 33, thereby improving the reliability of the first electrical connector 33.

[0365] In some embodiments, please refer to Figure 27a , Figure 27a for Figure 25 The diagram shows an enlarged view of the foldable electronic device 100 in region A. The first support member 231 includes a first outer surface m1, and the first groove C1 includes a first groove sidewall C12. When the foldable electronic device 100 is in the unfolded state, the first outer surface m1 can face away from the intermediate support member 2302, and the first groove sidewall C12 can face towards the second main body 202. The second gap J2 is located between the first groove sidewall C12 and the first outer surface m1.

[0366] In this embodiment, the first groove sidewall C12 is spaced apart from the first outer sidewall m1 to form a second gap J2. It will be understood that in other embodiments, please refer to [link to other embodiments]. Figure 27b , Figure 27bThis is a partial cross-sectional schematic diagram of a foldable electronic device 100 according to other embodiments of this application. A first clearance groove C120 is formed on the first main body 201. Exemplarily, the first clearance groove C120 is formed in the first housing 21. The first clearance groove C120 may be recessed from a portion of the surface of the first groove sidewall C12 toward a direction away from the first support member 231, and the first clearance groove C120 penetrates the first bearing surface a1 of the first main body 201. The first clearance groove C120 constitutes at least a portion of the second gap J2.

[0367] Please see Figure 27c , Figure 27c for Figure 27b The diagram shows a partial top view of the first support member 231 and the first main body 201 in the unfolded state of the foldable electronic device 100. Figure 27c The top view shown is a schematic diagram viewed from the foldable screen 10 towards the support device 20. The first groove sidewall C12 includes a first region C121 and a second region C122, which are arranged in the fourth direction e4. When the foldable electronic device 100 is in the unfolded state, the first region C121 is recessed relative to the second region C122 in a direction away from the first support member 231 to form a first clearance groove C120. The second gap J2 may be located between the first region C121 and the first outer surface m1. The fourth direction e4 is parallel to the axis of rotation of the first main body 201 relative to the second main body 202.

[0368] In this way, while forming a second gap J2 between the first main body 201 and the first support member 231, the gap between the second region C122 and the first outer side m1 is reduced, and the gap between the support device 20 and the folding screen 10 is reduced. This improves the impact resistance of the folding screen 10, prevents bright spots from appearing on the folding screen 10, and improves the flatness of the folding screen 10 in the unfolded state. It also helps to reduce screen shadows and creases that appear during the folding process.

[0369] It is understood that in other embodiments, a second clearance groove may also be provided on the first support member 231, the second clearance groove forming at least a portion of the second gap J2. In this case, the first main body 201 may or may not have a first clearance groove C120.

[0370] The formation method of the fourth gap J4 can be designed with reference to the second gap J2, and will not be elaborated here.

[0371] In some other embodiments, please refer to Figure 28 , Figure 28This is a partial cross-sectional view of a foldable electronic device 100 in its unfolded state, provided for further embodiments of this application. The foldable electronic device 100 in this embodiment is similar to... Figure 25 The difference between the foldable electronic device 100 shown is that, in addition to the support device 20, the foldable screen 10, and the first electrical connector 33, the foldable electronic device 100 in this embodiment also includes a support piece 40, which is located on the side of the folding mechanism 23 facing the foldable screen 10. It should be noted that the support piece 40 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0372] Please see Figure 28 When the foldable electronic device 100 is in the unfolded state, the support plate 40 is stacked on top of the first support member 231, the second support member 232, and the intermediate support member 2302, and the support plate 40 covers the first gap J1 and the third gap J3. In this state, the third display portion of the foldable screen 10 can be supported by the support plate 40. For example, a portion of the first electrical connector 33 can be disposed between the support plate 40 and the folding mechanism 23. For instance, at least one of the first segment 331, the first intermediate segment 335, and the third segment 333 can be disposed between the support plate 40 and the folding mechanism 23.

[0373] In this way, the support plate 40 can support the parts of the folding screen 10 that are opposite to the first gap J1 and the third gap J3, which can improve the impact resistance of the folding screen 10, prevent the appearance of bright spots on the folding screen 10, improve the flatness of the folding screen 10 in the unfolded state, help reduce screen light and shadow, and reduce creases that appear on the folding screen 10 during the folding process.

[0374] Furthermore, in some embodiments, the first electrical connector 33 can be separated from the support structure 102 in the foldable screen 10 by the support piece 40. This can effectively prevent the first electrical connector 33 from pressing against or pressing against the screen during the folding or unfolding of the foldable electronic device 100, reducing the risk of the foldable screen 10 arching during bending. At the same time, it can also prevent the first electrical connector 33 from being stuck in the hollow hole K1 on the support structure 102, which is beneficial to improving the reliability of the first electrical connector 33. In turn, it can improve the stability and reliability of signal transmission between the first circuit board 31 and the second circuit board 32.

[0375] Please see Figure 29 , Figure 29 for Figure 28The diagram shows a partial cross-sectional view of the foldable electronic device 100 in its folded state. When the folding mechanism 23 is in the folded state, the support piece 40 is bent. In this way, when the first support member 231 and the second support member 232 rotate relative to the intermediate support member 2302 between the unfolded position and the folded position, the support piece 40 can be bent together with the foldable screen 10, thus preventing the support piece 40 from affecting the bending effect of the foldable screen 10.

[0376] In order to facilitate the bending of the support plate 40 together with the folding screen 10, in some embodiments, at least a portion of the support plate 40 can slide relative to the folding mechanism 23 when the foldable electronic device 100 switches between an unfolded state and a folded state.

[0377] In some embodiments, please refer to Figure 30 and combined Figures 31-32 , Figure 30 for Figure 28 The figure shows an assembly perspective view of the support plate 40, folding mechanism 23, and first electrical connector 33 in the foldable electronic device 100. Figure 31 for Figure 30 The assembled three-dimensional view shown is a cross-sectional view at the CC line. Figure 32 for Figure 31 The cross-sectional view shown shows the support plate 40, folding mechanism 23, and first electrical connector 33 in a folded state.

[0378] One end of the support piece 40 is connected to the first support member 231, and the other end can slide with the second support member 232. That is, when the folding mechanism 23 is folded between the unfolded state and the folded state, the support piece 40 can slide relative to the second support member 232. For example, the support piece 40 and the first support member 231 can be fixed by means of bonding, welding, snap-fitting, fastener connection, etc. Alternatively, the support piece 40 can also be rotatably connected to the first support member 231 by means of a pivot, flexible structure, etc., without specific limitation.

[0379] In this way, when the foldable electronic device 100 is folded between the unfolded state and the folded state, the support piece 40 can adapt to the change in the gap between the first support member 231 and the second support member 232, which can reduce the stress on the foldable screen 10 and ensure the flatness of the support piece 40 in the unfolded state, thereby improving the flatness of the foldable screen 10 in the unfolded state.

[0380] It is understood that in other embodiments, the middle portion of the support piece 40 may be fixed to the folding mechanism 23, and both ends of the support piece 40 may be slidably connected to the folding mechanism 23. For example, the middle portion of the support piece 40 may be fixedly connected to the intermediate support member 2302, and both ends of the support piece 40 may be slidably connected to the first support member 231 and the second support member 232, respectively. This is as long as it ensures that at least a portion of the support piece 40 can slide relative to the folding mechanism 23 when the folding mechanism 23 is folded between the unfolded and folded states.

[0381] In some embodiments, to ensure the supporting performance of the support piece 40, the support piece 40 can be a metal sheet. For example, the support piece 40 can be a stainless steel sheet, a titanium alloy sheet, etc. In other embodiments, to reduce signal interference from the support piece 40 to the first electrical connector 33, the support piece 40 can be an insulating structural component. For example, the support piece 40 can be a Mylar sheet, etc. Alternatively, in yet another embodiment, the support piece 40 may also include a stacked metal layer and an insulating layer, with the insulating layer located on the side of the metal layer facing away from the foldable screen 10. Alternatively, the transmission line type of the portion of the first electrical connector 33 opposite to the support piece 40 (e.g., the first segment 331, the third segment 333, the first intermediate segment 335, the first bendable segment 336, the second bendable segment 338, etc.) can be designed to reduce the interference caused by the support piece 40 to the signal. Alternatively, the interference caused by the support piece 40 to the signal can be reduced by increasing the distance between the first electrical connector 33 and the support piece 40 in the Z-axis direction.

[0382] Based on any of the above embodiments, in order to reduce wear on the support piece 40 and decrease the noise generated by the support piece 40 rubbing against the second support member 232 during the folding process of the foldable electronic device 100, please refer to... Figures 31-32 A wear-resistant layer 50 is provided between the support plate 40 and the second support member 232. The wear-resistant layer 50 can be disposed on the surface of the second support member 232 facing the support plate 40, or on the surface of the support plate 40 facing the second support member 232. The material of the wear-resistant layer 50 includes at least one of polytetrafluoroethylene (PTFE), polyoxymethylene (POM), polyurethane, rubber, and latex.

[0383] In some embodiments, please refer to Figure 33 , Figure 33 for Figure 28The diagram shows a perspective view of the folding mechanism 23 in the foldable electronic device 100. The first support member 231 includes a first top surface m3 and a first bottom surface m4 facing away from each other, with the first top surface m3 potentially facing the foldable screen 10. A first groove C3 is provided on the first support member 231, extending through one side surface of the first support member 231 in the thickness direction. A first section 331 is disposed within the first groove C3.

[0384] In this way, on the one hand, the superposition thickness between the first section 331 and the first support member 231 can be reduced, which is conducive to reducing the overall thickness of the foldable electronic device 100 and thus facilitating the thinner design of the foldable electronic device 100; on the other hand, it can also expand the assembly space of the first section 331, making the selection of the thickness of the first section 331 more flexible; furthermore, it is also conducive to increasing the distance between the first electrical connector 33 and the metal structural components such as the support plate 40 and the support structure 102, thereby reducing the interference of the metal structural components such as the support plate 40 and the support structure 102 on the signal of the first electrical connector 33; furthermore, during the assembly process, the first electrical connector 33 can be positioned by the first recess C3, which helps to reduce the assembly difficulty of the first electrical connector 33.

[0385] In this embodiment, the first segment 331 is located on the side of the first support member 231 facing the folding screen 10, and the first recess C3 is recessed from the first top surface m3 toward the first bottom surface m4. That is, the first recess C3 penetrates the first top surface m3. It can be understood that in other embodiments, when the first segment 331 is located on the side of the first support member 231 facing the folding screen 10, the first recess C3 may be recessed from the first bottom surface m4 toward the first top surface m3. That is, the first recess C3 penetrates the first bottom surface m4.

[0386] Please continue reading. Figure 33 The first support member 231 includes a first inner side m2 that faces away from the first outer side m1. When the foldable electronic device 100 is in the unfolded state, the first inner side m2 faces the intermediate support member 2302. In some embodiments, the first recess C3 extends through the first inner side m2 and the first outer side m1. This facilitates the assembly of the first section 331 into the first recess C3 and reduces the assembly difficulty of the first section 331.

[0387] Furthermore, the second support member 232 is provided with a second sinking groove C4, the third section 333 is disposed within the second sinking groove C4, and the intermediate support member 2302 is provided with a third sinking groove C5, with the first intermediate section 335 disposed within the third sinking groove C5. The structures of the second sinking groove C4 and the third sinking groove C5 can be designed with reference to the structure of the first sinking groove C3 in any embodiment of this application, and will not be described in detail here.

[0388] In some embodiments, please refer to Figure 34 , Figure 34 for Figure 28 The diagram shows a perspective view of the first main body 201 in the foldable electronic device 100. The first main body 201 has a fourth recess C6 that penetrates the first bearing surface a1 and the first groove sidewall C12 of the first recess C1. At least a portion of the second section 332 can be disposed within the fourth recess C6. This reduces the superposition thickness between the second section 332 and the first main body 201 and facilitates increasing the distance between the first electrical connector 33 and the support structure 102 in the foldable screen 10, thereby reducing interference from metal structural components such as the support structure 102 to the signal of the first electrical connector 33. Furthermore, during assembly, the fourth recess C6 can also position the first electrical connector 33, reducing the assembly difficulty of the first electrical connector 33.

[0389] Similarly, a fifth settling tank can be provided on the second main body 202, and a portion of the fourth section 334 can be provided within the fifth settling tank. The structure of the fifth settling tank is the same as that of the fourth settling tank C6, and will not be described in detail here.

[0390] In some other embodiments, please refer to Figures 35-36 , Figure 35 A partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application in its unfolded state. Figure 36 for Figure 35 The diagram shows a partial cross-sectional view of the foldable electronic device 100 in its folded state. The difference between the foldable electronic device 100 in this embodiment and that in any of the aforementioned embodiments, the first intermediate section 335 of the first electrical connector 33 is not fixed relative to the shaft cover 2301. During the switching between the unfolded and folded states of the foldable electronic device 100, the first intermediate section 335 can deform. For example, during this process, the first intermediate section 335 can be bent, stretched, etc. In this way, the first electrical connector 33 can better adapt to the dimensional changes of the foldable electronic device 100 in different states.

[0391] It is understood that, when the first intermediate segment 335 is deformable, the first segment 331 may or may not include the elastic segment D1. In this case, at least a portion of the first segment 331 may be fixed to the first support member 231 to allow the first intermediate segment 335 to deform.

[0392] In some embodiments, when the foldable electronic device 100 is in the unfolded state, at least a portion of the first intermediate segment 335 arches toward the side opposite to the foldable screen 10. For example, in Figure 35In the illustrated embodiment, when the foldable electronic device 100 is in the unfolded state, the middle portion 335a of the first intermediate segment 335 arches towards the direction away from the foldable screen 10. The middle portion 335a may be generally arc-shaped. In other embodiments, when the foldable electronic device 100 is in the unfolded state, the entire first intermediate segment 335 arches towards the direction away from the foldable screen 10. In this case, the entire first intermediate segment 335 is generally arc-shaped.

[0393] This helps to increase the length of the first intermediate section 335, ensures the deformation space of the first electrical connector 33, reduces the stress on the first intermediate section 335, and thus helps to prevent the first intermediate section 335 from breaking.

[0394] In some embodiments, the first intermediate segment 335 is an elastic segment D1. Specifically, the second right side portion 335c, the second left side portion 335b, and the intermediate portion 335a are all elastic segments D1. In this way, the first intermediate segment 335 can adapt to the size changes of the foldable electronic device 100 in different states through stretching and bending deformation.

[0395] In some embodiments, the first intermediate segment 335 may be located between the intermediate support 2302 and the foldable screen 10. See also... Figures 35-36 The intermediate support member 2302 is provided with a receiving groove C8. For details, please refer to [link / reference needed]. Figure 36 The intermediate support member 2302 includes a second top surface n1 and a second bottom surface n2 facing away from each other, with the second top surface n1 facing the foldable screen 10. A receiving groove C8 can penetrate through the second top surface n1. Specifically, the receiving groove C8 can be formed by a recess from the second top surface n1 towards the second bottom surface n2. When the foldable electronic device 100 is in the unfolded state, at least a portion of the intermediate portion 335a is disposed within the receiving groove C8.

[0396] In this way, on the one hand, when the foldable electronic device 100 is in the unfolded state, at least a portion of the first intermediate section 335 (e.g., the intermediate section 335a) can be accommodated by the receiving groove C8, which helps to ensure the redundant length of the first intermediate section 335 and avoids the first intermediate section 335 being squeezed due to insufficient accommodating space when the foldable electronic device 100 is in the unfolded state, thereby reducing the stress on the first intermediate section 335 and improving the reliability of the first electrical connector 33; on the other hand, when the foldable electronic device 100 is in the folded state, the receiving groove C8 can also be used to avoid structures such as the folding screen 10 and the support piece 40, thereby preventing the intermediate support piece 2302 from squeezing the folding screen 10, which further helps to improve the reliability of the folding screen 10.

[0397] In this embodiment, the positions and fixing methods of other sections of the first circuit board 31 (such as the first section 331, the second section 332, the third section 333, the fourth section 334, the first bendable section 336, the second bendable section 338, etc.) can be designed with reference to the first electrical connector 33 in any embodiment of this application, and will not be described in detail here.

[0398] It is understood that in other embodiments, when the foldable electronic device 100 is in the unfolded state, the first intermediate segment 335 may also be approximately flat. That is, the dimensions of the first intermediate segment 335 are not redundant.

[0399] In some embodiments, when the first intermediate segment 335 is an elastic segment D1, to facilitate bending of the first intermediate segment 335, please refer to [reference needed]. Figure 37 , Figure 37 This is a partial cross-sectional view of the first electrical connector 33 and the foldable screen 10 in a foldable electronic device 100 provided in some embodiments of this application. The first intermediate segment 335 includes a first surface n31 and a second surface n32 facing away from each other, with the first surface n31 facing away from the foldable screen 10. Exemplarily, both the first surface n31 and the second surface n32 are formed on the first insulating member 33b1.

[0400] For example, such as Figure 37 As shown in (a) and (b), a second stress relief hole K22 and a third stress relief hole K23 are provided on the first intermediate section 335. The second stress relief hole K22 can penetrate the first surface n31, and the third stress relief hole K23 can penetrate the second surface n32. The second stress relief hole K22 can be formed on at least one of the intermediate portion 335a, the second left portion 335b, and the second right portion 335c. Similarly, the third stress relief hole K23 can be formed on at least one of the intermediate portion 335a, the second left portion 335b, and the second right portion 335c.

[0401] This reduces the stiffness of the first intermediate section 335, thereby reducing its ability to resist elastic deformation and making it easier for the first intermediate section 335 to undergo bending deformation.

[0402] In some embodiments, at least a portion of the first conductive element 33a1 in the first intermediate section 335 is exposed through the second stress relief hole K22. This is beneficial for increasing the depth of the second stress relief hole K22, which in turn helps to further reduce the stiffness of the first intermediate section 335, thereby further improving the bending performance of the first intermediate section 335.

[0403] Similarly, at least a portion of the first conductive element 33a1 in the first intermediate section 335 may be exposed in the third stress relief hole K23.

[0404] For example, such as Figure 37 As shown in (c) and (d) in the figure, the second stress relief hole K22 can also be provided only on the first intermediate section 335, or as shown in the figure. Figure 37 As shown in (e), a third stress relief hole K23 can also be provided only on the first intermediate section 335. In this way, the stiffness of the first intermediate section 335 can also be reduced to a certain extent, which reduces the ability of the first intermediate section 335 to resist elastic deformation and makes it easier for the first intermediate section 335 to undergo bending deformation.

[0405] The second stress relief hole K22 may include multiple spaced-apart sub-relief holes (such as...) Figure 37 As shown in (a)), or, the second stress relief hole K22 can also be a large hole (as shown in (a)). Figure 37 As shown in (d) in the middle part 335a, the first conductive element 33a1 in the middle part 335a can be fully exposed in the second stress relief hole K22.

[0406] The structure and number of the third stress relief hole K23 can be designed with reference to the second stress relief hole K22. Furthermore, it is understood that, to ensure the elastic tension of the first intermediate section 335, when the second stress relief hole K22 is formed as a large hole, the third stress relief hole K23 may include multiple spaced-apart sub-relief holes, or the intermediate portion 335a may not include the third stress relief hole K23 (e.g., ...). Figure 37 (as shown in (d)). Similarly, when the third stress relief hole K23 is formed as a large hole, the second stress relief hole K22 may include multiple spaced-apart sub-relief holes (such as...). Figure 37 (as shown in (b)), or the first intermediate section 335 may not include the second stress relief hole K22.

[0407] For example, such as Figure 37 As shown in (f), the first intermediate section 335 may also omit both the second stress relief hole K22 and the third stress relief hole K23. In this case, the bending performance of the first intermediate section 335 can be improved by reducing the thickness of the first insulating member 33b1 in the first intermediate section 335. For example, when the foldable electronic device 100 is in the unfolded state, the thickness of the portion of the first insulating member 33b1 located on the first conductive member 33a1 facing the folding screen 10 is less than or equal to 0.2 mm, and the thickness of the portion of the first insulating member 33b1 located on the first conductive member 33a1 facing away from the folding screen 10 is less than or equal to 0.2 mm. This also reduces the stiffness of the first intermediate section 335 to a certain extent, reducing its resistance to elastic deformation and facilitating bending, stretching, and other deformations.

[0408] It is understood that the second stress relief hole K22 and the third stress relief hole K23 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0409] In some other embodiments, please refer to Figure 38 , Figure 38 This is a partial cross-sectional view of the first electrical connector 33 and the folding screen 10 in a foldable electronic device 100 provided in some embodiments of this application. The foldable electronic device 100 in this embodiment and... Figure 33 The difference in the foldable electronic device 100 shown is that, in this embodiment, the first intermediate segment 335 is a non-elastic segment D2. When the foldable electronic device 100 is in the unfolded state, at least a portion of the first intermediate segment 335 arches away from the folding screen 10. That is, the first intermediate segment 335 is redundantly disposed between the first segment 331 and the third segment 333.

[0410] For example, the first intermediate segment 335 can be a flexible circuit board or a cable. Specifically, the first intermediate segment 335 does not include the insulating element 33b. This improves the flexibility of the first intermediate segment 335 and facilitates bending of the first intermediate segment 335.

[0411] In some embodiments, the first intermediate segment 335 is a coplanar waveguide. This reduces the thickness of the first intermediate segment 335, thereby improving its bending performance and effectively preventing breakage of the signal line (i.e., the second conductive element 33a2) in the first intermediate segment 335, thus improving the reliability of the first electrical connector 33.

[0412] In other embodiments, the first intermediate segment 335 can also be a strip. In this case, an air gap K2 is formed between two adjacent flexible plates in the first intermediate segment 335. This also ensures the bending performance of the first intermediate segment 335 and prevents the signal lines in the first intermediate segment 335 from breaking.

[0413] In some other embodiments, please refer to Figures 39-40 , Figure 39 A partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application. Figure 40 for Figure 39The diagram shows the foldable electronic device 100 in its folded state. The foldable electronic device 100 of this embodiment differs from that of any of the aforementioned embodiments in that, in this embodiment, the first intermediate segment 335 of the first electrical connector 33 is located on the side of the intermediate support 2302 facing away from the folding screen 10. The location of the first intermediate segment 335 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application. The positions and fixing methods of other segments of the first electrical connector 33 in this embodiment (e.g., first segment 331, second segment 332, third segment 333, fourth segment 334, etc.) can be designed with reference to the first electrical connector 33 in any embodiment of this application.

[0414] In this way, the first intermediate section 335 can be separated from the support plate 40, folding screen 10 and other structures by the intermediate support member 2302. This not only reduces the interference of metal structural components such as the support plate 40 and support structure 102 on the transmission signal, but also avoids the top screen of the first intermediate section 335, which can reduce the risk of the folding screen 10 arching.

[0415] In some embodiments, the first intermediate section 335 is not fixed relative to the shaft cover 2301. See also... Figure 39 and combined Figure 40 When the foldable electronic device 100 switches between an unfolded state and a folded state, the first intermediate segment 335 can deform (e.g., bend, stretch, etc.). For example, the first intermediate segment 335 can redundantly reside between the intermediate support member 2302 and the shaft cover 2301. When the foldable electronic device 100 is in the unfolded state, the first intermediate segment 335 arches in the direction away from the foldable screen 10. For example, the first intermediate segment 335 can be arc-shaped.

[0416] In this case, the first intermediate segment 335 can be set as an elastic segment D1 as a whole; or the first intermediate segment 335 can be set as a non-elastic segment D2 as a whole.

[0417] In some other embodiments, please refer to Figures 41-42 , Figure 41 A partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application in its unfolded state. Figure 42 for Figure 41 This is a schematic diagram of the foldable electronic device 100 in its folded state. The foldable electronic device 100 in this embodiment is similar to... Figure 39 The difference in the foldable electronic device 100 shown is that at least a portion of the first intermediate segment 335 in this embodiment is fixed to the base 230. The connection and positional relationship between the first intermediate segment 335 and the base 230 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0418] For example, please refer to Figure 41 The middle portion 335a of the first intermediate section 335 can be fixed to the shaft cover 2301. It is understood that in other embodiments, the middle portion 335a can also be fixed to the intermediate support member 2302. This can better restrict the bending shape of the first electrical connector 33, which is beneficial to reducing the space occupied by the first electrical connector 33 inside the folding mechanism 23, and also helps to improve the consistency of insertion loss.

[0419] In some embodiments, the middle portion 335a is a non-elastic segment D2, and the second left-side portion 335b is an elastic segment D1. This is beneficial for reducing the redundant length of the conductive element 33a in the first electrical connector 33 while ensuring the deformation of the first electrical connector 33, thereby reducing the insertion loss of the first electrical connector 33 and improving the consistency of the insertion loss of the first electrical connector 33.

[0420] It is understood that in other embodiments, the second left side portion 335b may also be fixed to the base 230. In this case, during the switching between the unfolded state and the foldable electronic device 100, the deformation of at least one of the first right side portion 331b and the first bendable segment 336 can be used to adapt to the shape change of the foldable electronic device 100.

[0421] The positions and fixing methods of other sections (such as the second section 332, the third section 333, the fourth section 334, etc.) of the first electrical connector 33 in this embodiment can be designed with reference to the first electrical connector 33 in any embodiment of this application, and will not be described again here.

[0422] In some other embodiments, please refer to Figures 43-46 , Figures 43-46 These are partial cross-sectional views of a foldable electronic device 100 provided in some embodiments of this application. The foldable electronic device 100 in this embodiment differs from that in any of the aforementioned embodiments in that, in this embodiment, the first segment 331 of the first electrical connector 33 is located on the side of the first support member 231 facing away from the folding screen 10. The location of the first segment 331 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0423] In this way, the first section 331 can be separated from the support plate 40, folding screen 10 and other structures by the first support member 231. This not only reduces the interference of metal structural components such as the support plate 40 and support structure 102 on the transmission signal, but also avoids the top screen of the first section 331, which can reduce the risk of the folding screen 10 arching.

[0424] For example, at least a portion of the first segment 331 may be fixed to the first support member 231, or the first segment 331 may also slide in conjunction with the first support member 231. This reduces the distance between the first segment 331 and the folding screen 10, which helps to reduce the overall length of the electrical connector 33.

[0425] In some embodiments, please refer to Figure 43 and Figure 44 The first through hole K4 penetrates the first groove sidewall C12 of the first groove C1. That is, the first through hole K4 penetrates the first sidewall surface a2. The second section 332 of the first electrical connector 33 can pass through the first through hole K4 and be electrically connected to the first circuit board 31.

[0426] In this way, the first electrical connector 33 does not need to pass through the gap (e.g., the second gap J2) between the first main body 201 and the first support member 231. This not only reduces the difficulty of electrical connection between the first electrical connector 33 and the first circuit board 31, but also helps to reduce the overall length of the first electrical connector 33, thereby reducing the resistance of the first electrical connector 33 and thus reducing signal insertion loss.

[0427] It is understood that the electrical connection method between the first electrical connector 33 and the first circuit board 31 in the embodiments of this application can be applied to the foldable electronic device 100 in any embodiment of this application.

[0428] Additionally, please see Figures 45-46 When at least a portion of the first section 331 is located opposite the folding screen 10 of the first support member 231, the first electrical connector 33 can also pass through the gap (e.g., the second gap J2) between the first main body 201 and the first support member 231, and enter the first housing 21 via the first through hole K4, thereby achieving an electrical connection between the first electrical connector 33 and the first circuit board 31. In this case, the first through hole K4 penetrates the surface of the first main body 201 facing the folding screen 10 (i.e., the first bearing surface a1).

[0429] In some embodiments, both the first intermediate segment 335 and the first section 331 are located within the first space Q3, or both the first intermediate segment 335 and the first section 331 are located outside the first space Q3. For example, please refer to... Figures 43-45 The first intermediate segment 335 is located on the side of the intermediate support member 2302 facing away from the foldable screen 10, and the first section 331 is located on the side of the first support member 231 facing away from the foldable screen 10. In this way, the first electrical connector 33 does not need to pass through the first gap J1, which not only helps to reduce the assembly difficulty of the first electrical connector 33, but also helps to reduce the overall length of the first electrical connector 33, thereby helping to reduce the resistance of the first electrical connector 33.

[0430] Of course, in other embodiments, one of the first segment 331 and the first intermediate segment 335 may be located within the first space Q3, and the other may be located outside the first space Q3 (e.g., Figure 46 (As shown).

[0431] In some other embodiments, please refer to Figures 47-48 , Figure 47 This is a partial cross-sectional view of the foldable electronic device 100 provided in some embodiments of this application in its unfolded state. Figure 48 for Figure 47 The diagram shows the foldable electronic device 100 in its folded state. The difference between the foldable electronic device 100 in this embodiment and those in any of the aforementioned embodiments is that in the former, the first segment 331 is stacked on top of the first support member 231. That is, the first segment 331 is located on one side of the thickness direction of the first support member 231. In this embodiment, the first support member 231 has at least one first through hole 231a, which penetrates both sides of the first support member 231 in the thickness direction. The first segment 331 passes through at least one first through hole 231a. This allows the first segment 331 to be connected to the first support member 231 through the first through hole 231a, which helps prevent the first segment 331 from shaking or swaying, improves the signal stability of the first electrical connector 33, and has a simple and ingenious design.

[0432] In some embodiments, the first through hole 231a can be reused as a weight-reducing hole on the first support member 231. In this way, the assembly of the first section 331 can be achieved without having to additionally open the first through hole 231a on the first support member 231, which can further simplify the structure of the foldable electronic device 100.

[0433] For example, the first segment 331 can be bonded and fixed within the first through hole 231a, which makes the position of the first segment 331 more stable. It is understood that in other embodiments, the first segment 331 may not be fixed within the first through hole 231a; for example, the first segment 331 may slide with the first through hole 231a.

[0434] The connection method between the first segment 331 and the first support member 231 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0435] In some other embodiments, please refer to Figures 49-50 , Figure 49 A partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application in its unfolded state. Figure 50 for Figure 49The diagram shows the foldable electronic device 100 in its folded state.

[0436] The foldable electronic device 100 in this embodiment differs from that in any of the aforementioned embodiments in that the first segment 331 is disposed within the first groove C1, and at least a portion of the first segment 331 is an elastic segment D1. Thus, during the switching between the unfolded and folded states, the foldable electronic device 100 can adapt to dimensional changes in different states through the stretching and deformation of the first segment 331. Furthermore, since the first groove C1 has a relatively large space, placing the first segment 331 within the first groove C1 also provides sufficient space for assembly and elastic deformation.

[0437] In some embodiments, to facilitate elastic deformation of the first segment 331, at least a portion of the first intermediate segment 335 may be fixed to the base 230. Specifically, at least a portion of the first intermediate segment 335 may be fixed to the shaft cover 2301 or the intermediate support 2302. For example, please refer to [reference needed]. Figure 49 and Figure 50 The entire first intermediate section 335 can be fixed to the shaft cover 2301.

[0438] In some embodiments, in order to improve the uniformity of force on the first electrical connector 33, the third section 333 may be disposed in the second groove C2, and at least a portion of the third section 333 is an elastic section D1.

[0439] It is understood that the structure and location of the first segment 331 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application.

[0440] Based on any of the above embodiments, please refer to Figure 51 , Figure 51 This is a partial cross-sectional view of a foldable electronic device 100 provided in some embodiments of this application. The foldable electronic device 100 also includes a second electrical connector 34, the two ends of which are electrically connected to a first circuit board 31 and a second circuit board 32, respectively. The second electrical connector 34 in this embodiment can be applied to the foldable electronic device 100 in any embodiment of this application. The second electrical connector 34 may include a flexible circuit board or a cable.

[0441] One of the first electrical connector 33 and the second electrical connector 34 is a radio frequency (RF) transmission line used to transmit RF signals; the other is a non-RF transmission line used to transmit non-RF signals. For example, the first electrical connector 33 can be an RF transmission line and the second electrical connector 34 can be a non-RF transmission line. Alternatively, the first electrical connector 33 can be a non-RF transmission line and the second electrical connector 34 can be an RF transmission line.

[0442] In this way, by setting two independent electrical connectors 33, the first electrical connector 33 and the second electrical connector 34, the radio frequency signal and the non-radio frequency signal can be designed separately, which helps to improve the signal isolation, avoid interference between the radio frequency signal and the non-radio frequency signal, and improve the anti-interference performance of the foldable electronic device 100.

[0443] In some embodiments, at least a portion of the first electrical connector 33 and at least a portion of the second electrical connector 34 are in the thickness direction of the first electrical connector 33 (e.g., ...). Figure 51 The Z-axis direction of the circuit is used to set the spacing. In this way, the first electrical connector 33 and the second electrical connector 34 can form spatial isolation in the thickness direction of the first electrical connector 33, which can further improve the isolation effect between radio frequency signals and non-radio frequency signals.

[0444] Please see Figure 51 The second electrical connector 34 includes a second intermediate section 343, a first connecting section 341, and a second connecting section 342. The first connecting section 341 and the second connecting section 342 are respectively connected to the two ends of the second intermediate section 343. The second intermediate section 343 is disposed opposite to the base 230, the first connecting section 341 is disposed opposite to the first support member 231, and the second connecting section 342 is disposed opposite to the second support member 232.

[0445] In some embodiments, the first connecting segment 341 and the first section 331 are located on opposite sides of the thickness direction of the first support member 231. This can further improve the isolation between the first connecting segment 341 and the first section 331, which is beneficial to further improving the signal isolation between the first electrical connector 33 and the second electrical connector 34.

[0446] In some embodiments, the second intermediate segment 343 may be fixed to the base 230, and the first connecting segment 341 is redundantly disposed on the side of the first support member 231 facing away from the foldable screen 10. For example, the first connecting segment 341 is redundantly disposed within the first groove C1. When the foldable electronic device 100 switches between an unfolded state and a folded state, the first connecting segment 341 may deform (e.g., stretch or bend). In this way, the second electrical connector 34 can adapt to the shape changes of the foldable electronic device 100, which is beneficial to improving the reliability of the second electrical connector 34.

[0447] The structure of the second connecting segment 342 and the positional relationship between the second connecting segment 342 and the third segment 333 can be designed with reference to the structure of the first connecting segment 341 and the positional relationship between the first connecting segment 341 and the first segment 331, and will not be elaborated here.

[0448] In some embodiments, please refer to Figure 51The first housing 21 is provided with a second through hole K5, which communicates with the first receiving cavity Q1 and penetrates the first groove sidewall C12 of the first groove C1. In other words, the second through hole K5 penetrates the first sidewall surface a2. The second electrical connector 34 can pass through the second through hole K5 and be electrically connected to the first circuit board 31. This facilitates the electrical connection between the second electrical connector 34 and the first circuit board 31.

[0449] In some embodiments, the second through hole K5 and the first through hole K4 are respectively formed on different wall surfaces of the first main body 201. For example, one of the second through hole K5 and the first through hole K4 is formed on the first bearing surface a1, and the other is formed on the first side wall surface a2. This helps to reduce the opening size of the first through hole K4 and the second through hole K5, thereby helping to improve the structural strength of the first housing 21.

[0450] In some embodiments, please refer to Figure 52 , Figure 52 for Figure 51 The diagram shows a top view of the foldable electronic device 100 in its unfolded state. Figure 52 The top view in the diagram refers to a schematic diagram viewed from the folding screen 10 towards the support device 20. The orthographic projection of the first electrical connector 33 on the first plane overlaps with the orthographic projection of the second electrical connector 34 on the first plane. This helps to increase the distance between the two opposite end faces of the first electrical connector 33 and the base 230 in the Y-axis direction, as well as the distance between the two opposite end faces of the second electrical connector 34 and the base 230 in the Y-axis direction. This also helps to reduce the difficulty of opening the first through hole K4 and the second through hole K5, and reduces the difficulty of sealing the first through hole K4 and the second through hole K5, thereby improving the waterproof performance of the foldable electronic device 100.

[0451] Please see Figure 53 , Figure 53 This is a top view of a foldable electronic device 100 provided in some other embodiments of this application in its unfolded state. The first electrical connector 33 and the second electrical connector 34 may be spaced apart in the Y-axis direction (i.e., the length direction of the base 230). Specifically, the orthographic projections of the first electrical connector 33 and the second electrical connector 34 on the first plane do not overlap.

[0452] In this way, the first electrical connector 33 and the second electrical connector 34 can form spatial isolation in the Y-axis direction, which can further improve the isolation effect between radio frequency signals and non-radio frequency signals.

[0453] It is understood that in other embodiments, when the first electrical connector 33 and the second electrical connector 34 are spaced apart in the Y-axis direction, the structure and position of the second electrical connector 34 may be the same as those of the first electrical connector 33. Furthermore, in embodiments where the first electrical connector 33 and the second electrical connector 34 are spaced apart in the Y-axis direction, the first electrical connector 33 and the second electrical connector 34 may or may not be spaced apart in the Z-axis direction.

[0454] Based on the descriptions of the above embodiments, the foldable electronic device 100 in this application embodiment, by providing the first electrical connector 33 described above, can effectively improve the reliability of the electrical connection between the first circuit board 31 and the second circuit board 32, and is conducive to reducing the length and space occupied by the first electrical connector 33.

[0455] For example, when the conductive element 33a in the first electrical connector 33 is a flexible circuit board, the overall length of the first electrical connector 33 in some embodiments of this application can be 35mm, and the length of the redundant portion 3012 (including the portion containing the air gap K2) is 5mm. In related technologies, the length of the flexible circuit board is 60mm, and the length of the redundant portion 3012 is 20mm. Compared to the flexible circuit board in related technologies, the overall length of the first electrical connector 33 in the embodiments of this application can be reduced by approximately 25mm, and the length of the redundant portion 3012 can be reduced by approximately 15mm.

[0456] The insertion loss benefit of the first electrical connector 33 is explained below. Table 1 lists the insertion loss of the coplanar waveguide.

[0457] Table 1

[0458]

[0459] When the first electrical connector 33 is a coplanar waveguide, the insertion loss of the first electrical connector 33 in this embodiment is: 0.5*30 / 100 + 0.9*5 / 100 = 0.195 dB. The insertion loss of the flexible circuit board in the related art is: 0.5*40 / 100 + 0.9*20 / 100 = 0.38 dB. The insertion loss of the first electrical connector 33 in this embodiment can be reduced by 0.235 dB compared with the insertion loss of the flexible circuit board in the related art, which is a reduction of about 50%.

[0460] In summary, the foldable electronic device 100 in this application embodiment can achieve a reliable electrical connection between the first circuit board 31 and the second circuit board 32 through the first electrical connector 33. Furthermore, the first electrical connector 33 has the advantages of short length, good elasticity, long bending life, small space occupation, and low cost, which can improve the reliability of the folding mechanism 23 while realizing the miniaturization design of the foldable electronic device 100.

[0461] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0462] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A foldable electronic device, characterized in that, include: The support device includes a first main body, a second main body, and a folding mechanism. The first main body and the second main body are respectively connected to both sides of the folding mechanism. The foldable electronic device can switch between an unfolded state and a folded state. The first main body includes a first circuit board, and the second main body includes a second circuit board. A first electrical connector, wherein both ends of the first electrical connector are electrically connected to the first circuit board and the second circuit board respectively, and the first electrical connector includes an elastic segment, the elastic segment comprising: The first insulating member is elastically deformable along a first direction when the foldable electronic device switches between the unfolded state and the folded state. A first conductive element is fixed to the first insulating element, and the first conductive element extends meanderingly along the first direction.

2. The foldable electronic device according to claim 1, characterized in that, The first insulating element has a first cavity, and the first conductive element is fixed inside the first cavity.

3. The foldable electronic device according to claim 1 or 2, characterized in that, The first insulating element is in the form of a woven mesh.

4. The foldable electronic device according to any one of claims 1-3, characterized in that, The first insulating component is provided with a first stress relief hole, which penetrates the first outer surface and the second outer surface opposite to each other of the first insulating component. The arrangement direction of the first outer surface and the second outer surface is perpendicular to the first direction. The orthographic projection of the first stress relief hole on the first outer surface does not overlap with the orthographic projection of the first conductive element on the first outer surface.

5. The foldable electronic device according to any one of claims 1-4, characterized in that, The first insulating element includes a first outer surface and a second outer surface that are opposite to each other. The first conductive element is located between the first outer surface and the second outer surface. A first shielding layer is provided on the first outer surface, and a second shielding layer is provided on the second outer surface. The first shielding layer and the second shielding layer are electrically connected.

6. The foldable electronic device according to claim 5, characterized in that, The first conductive element includes a first ground layer, which is electrically connected to the first shielding layer.

7. The foldable electronic device according to claim 5 or 6, characterized in that, The first shielding layer is in the form of a mesh.

8. The foldable electronic device according to any one of claims 5-7, characterized in that, The first insulating component is provided with a first metallized via, and the two ends of the first metallized via are electrically connected to the first shielding layer and the second shielding layer, respectively. When the first insulating component is in its natural state, the angle between the central axis of the first metallized via and the first direction is greater than 0 degrees and less than 90 degrees.

9. The foldable electronic device according to any one of claims 5-8, characterized in that, The first outer surface includes a plurality of first protrusions arranged in the first direction, the first protrusions arching toward a direction away from the second outer surface.

10. The foldable electronic device according to any one of claims 1-9, characterized in that, The folding mechanism includes a base and a first support member, the first support member being rotatable relative to the base; The first electrical connector includes a first section and a first intermediate section. When the foldable electronic device is in the unfolded state, the orthographic projection of the first section on the first plane is located within the orthographic projection of the first support member on the first plane, and the orthographic projection of the first intermediate section on the first plane is located within the orthographic projection of the base on the first plane; wherein, the first plane is perpendicular to the thickness direction of the base.

11. The foldable electronic device according to claim 10, characterized in that, At least one of the first segment and the first intermediate segment includes the elastic segment.

12. The foldable electronic device according to claim 10 or 11, characterized in that, The first segment includes an elastic segment, and the first conductive element in the first segment extends in a second plane, which is perpendicular to the thickness direction of the first support element.

13. The foldable electronic device according to any one of claims 10-12, characterized in that, The first segment includes a first left portion and a first right portion, the first right portion being located between the first left portion and the first middle segment, and the first right portion forming the elastic segment.

14. The foldable electronic device according to any one of claims 10-13, characterized in that, During the switching between the unfolded and folded states of the foldable electronic device, at least a portion of the first intermediate segment may deform.

15. The foldable electronic device according to claim 14, characterized in that, Includes a foldable screen, which is disposed on the supporting device; At least a portion of the first middle section arches in a direction away from the folding screen.

16. The foldable electronic device according to claim 14 or 15, characterized in that, The first intermediate segment is a cable or a flexible circuit board, or the first intermediate segment is formed as the elastic segment.

17. The foldable electronic device according to any one of claims 14-16, characterized in that, Includes a foldable screen, which is disposed on the supporting device; The first intermediate segment includes a first surface and a second surface facing away from each other, with the first surface facing away from the folding screen; The first intermediate section is provided with at least one of a second stress relief hole and a third stress relief hole, wherein the second stress relief hole penetrates the first surface; and the third stress relief hole penetrates the second surface.

18. The foldable electronic device according to any one of claims 10-14, characterized in that, The first intermediate segment includes a second left portion, a middle portion, and a second right portion connected in sequence, wherein the second left portion is located between the middle portion and the first segment; The second left portion is formed as the elastic segment, and the middle portion is fixed to the base.

19. The foldable electronic device according to any one of claims 10-18, characterized in that, The first electrical connector includes a first bendable section, the base includes an intermediate support member, and there is a first gap between the intermediate support member and the first support member. When the foldable electronic device is in the unfolded state, the orthographic projection of the first bendable section in the first plane overlaps with the orthographic projection of the first gap in the first plane. During the switching between the unfolded and folded states of the foldable electronic device, the first bendable segment can be bent and stretched.

20. The foldable electronic device according to claim 19, characterized in that, The first bendable segment is one of the following: an elastic segment, a flexible circuit board, or a cable.

21. The foldable electronic device according to any one of claims 10-20, characterized in that, There is a second gap between the first main body and the first support member; The first electrical connector includes a first deformable segment. When the foldable electronic device is in the unfolded state, the orthographic projection of the first deformable segment in the first plane overlaps with the orthographic projection of the second gap in the first plane. When the foldable electronic device switches between the unfolded state and the folded state, the first deformable segment can deform.

22. The foldable electronic device according to claim 21, characterized in that, The first deformable segment is an elastic segment.

23. The foldable electronic device according to any one of claims 10-22, characterized in that, The first support member is provided with a first groove, which penetrates one side surface of the first support member in the thickness direction, and the first section is disposed in the first groove.

24. The foldable electronic device according to any one of claims 10-22, characterized in that, The first support member has at least one first through hole, which penetrates both sides of the first support member in the thickness direction, and the first section passes through at least one first through hole.

25. The foldable electronic device according to any one of claims 10-22, characterized in that, Includes a foldable screen, which is disposed on the supporting device; The first main body includes a first bearing surface and a first side wall surface. The first bearing surface faces the foldable screen, and when the foldable electronic device is in the unfolded state, the first side wall surface faces the second main body. The first main body is provided with a first groove, the first groove penetrates the first bearing surface and the first side wall surface, the first section is located in the first groove, and at least a portion of the first section is formed as the elastic segment.

26. The foldable electronic device according to any one of claims 10-23, characterized in that, The device includes a foldable screen disposed on the supporting device, a first space being defined between the foldable screen and the supporting device, and at least a portion of the first electrical connector being located within the first space.

27. The foldable electronic device according to claim 26, characterized in that, include: A support sheet is stacked on the side of the folding mechanism closest to the folding screen, and at least a portion of the support sheet is fixed to the folding mechanism. The first electrical connector is partially disposed between the folding mechanism and the support plate.

28. The foldable electronic device according to any one of claims 1-27, characterized in that, It includes a second electrical connector, the two ends of which are electrically connected to the first circuit board and the second circuit board, respectively; One of the first electrical connector and the second electrical connector is used to transmit radio frequency signals.

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