Hinge assembly and electronic device

Abstract

A hinge assembly and an electronic device, belonging to the technical field of electronic devices. The hinge assembly (100) comprises: a support component (110), the support component (110) comprising a rotating shaft (111); and two rotating mechanisms (120), the two rotating mechanisms (120) being symmetrically arranged on the support component (110), the two rotating mechanisms (120) being linked, and each rotating mechanism (120) comprising a first swing arm (122), a second swing arm (124) and an elastic component (126), wherein the first swing arm (122) is rotationally connected to the rotating shaft (111), and the first swing arm (122) comprises a sliding groove (1222); the second swing arm (124) is rotationally connected to the rotating shaft (111), the first swing arm (122) and the second swing arm (124) are arranged side-by-side in the axial direction of the rotating shaft (111), the second swing arm (124) is partially located in the sliding groove (1222), and the second swing arm (124) can slide along the sliding groove (1222); and the elastic component (126) is connected to the first swing arm (122), the elastic component (126) is in contact with the second swing arm (124), and the elastic component (126) is configured to press part of the second swing arms (124) located in the sliding groove (1222) against an inner surface of the sliding groove (1222) by means of an elastic force. In this way, the technical problems of the hinge mechanism having a synchronization error during opening and closing, two sides of a flexible screen rotating asynchronously, a foldable screen being easy to damage, high maintenance costs, and poor user experience are solved.

Description

Hinge components and electronic devices

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411205884.4, filed on August 30, 2024, entitled "Hinge Assembly and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application belongs to the field of electronic device technology, specifically relating to a hinge assembly and an electronic device. Background Technology

[0004] Currently, the main method to expand or shrink the screen area is through foldable screens. Foldable screens include foldable flexible screens and hinge mechanisms. Through the movement of the hinge mechanism, the flexible screen can complete the folding or unfolding action, ultimately achieving the adjustment of the screen area.

[0005] In related technologies, the hinge mechanism achieves linkage through a synchronous swing arm and a virtual swing arm, which are connected by a slide rail or a pin.

[0006] However, there is a gap between the synchronous swing arm and the virtual swing arm that are connected by a slide or pin. During the opening and closing process, the gap will cause the hinge mechanism to produce a synchronization error. The synchronization error of the hinge mechanism will cause the rotation of the two sides of the flexible screen to be asynchronous, resulting in technical problems such as easy damage to the foldable screen, high maintenance costs, and poor user experience. Summary of the Invention

[0007] This application aims to provide a hinge assembly and electronic device that at least solves the technical problem of synchronization error in the opening and closing process of the hinge mechanism.

[0008] In a first aspect, embodiments of this application propose a hinge assembly, comprising: a support component including a pivot; two rotating mechanisms symmetrically arranged on the support component and linked together, each rotating mechanism including a first swing arm, a second swing arm, and an elastic component; the first swing arm being rotatably connected to the pivot and including a groove; the second swing arm being rotatably connected to the pivot, and the first and second swing arms being arranged side-by-side along the axial direction of the pivot, with a portion of the second swing arm located within the groove, and the second swing arm capable of sliding along the groove; and the elastic component being connected to the first swing arm and in contact with the second swing arm, the elastic component being used to press the portion of the second swing arm located within the groove onto the inner surface of the groove using elastic force.

[0009] Secondly, embodiments of this application provide an electronic device comprising: the hinge assembly of the first aspect embodiment; a first folding body, wherein in two rotating mechanisms, the first folding body is connected to a first swing arm in one of the rotating mechanisms; and a second folding body, wherein in two rotating mechanisms, the second folding body is connected to a first swing arm in the other rotating mechanism.

[0010] This application eliminates the gap between the slide and the second swing arm by setting an elastic component that clamps and positions the second swing arm on the inner wall of the sliding groove. This allows the second swing arm to always be against the inner wall of the slide. When the user moves the first folding body and / or the second folding body of the electronic device, the tightly fitted first and second swing arms can respond immediately and transmit torque in the first instant, avoiding the first or second swing arm from spinning freely and eliminating the synchronization error between the first and second swing arms. This allows both sides of the folding screen to open and close synchronously, thereby reducing the possibility of creases on the flexible screen and extending the service life of the folding screen. This solves the technical problems of synchronization error in the hinge mechanism during opening and closing, asynchronous rotation of the two sides of the flexible screen, easy damage to the folding screen, high maintenance costs, and poor user experience. It also achieves the technical effects of optimizing the structure of the hinge assembly, improving the reliability of the hinge assembly, reducing the failure rate of electronic devices, and improving the user experience.

[0011] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0012] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0013] Figure 1 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0014] Figure 2 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0015] Figure 3 is an exploded view of a hinge assembly according to an embodiment of this application;

[0016] Figure 4 is a schematic diagram of the structure of the second swing arm according to an embodiment of this application;

[0017] Figure 5 is a structural schematic diagram of the elastic component according to an embodiment of this application;

[0018] Figure 6 is a schematic diagram of the structure of the elastic component according to an embodiment of this application;

[0019] Figure 7 is a schematic diagram of the structure of the first swing arm according to an embodiment of this application;

[0020] Figure 8 is a structural schematic diagram of region A of the first swing arm in the embodiment shown in Figure 7;

[0021] Figure 9 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0022] Figure 10 is a partial enlarged view of the rotating mechanism in region B in the embodiment shown in Figure 9;

[0023] Figure 11 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0024] Figure 12 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0025] Figure 13 is a cross-sectional view of the hinge assembly in the CC direction in the embodiment shown in Figure 12;

[0026] Figure 14 is a partial enlarged view of the rotating mechanism in region D in the embodiment shown in Figure 13;

[0027] Figure 15 is a structural schematic diagram of a hinge assembly according to an embodiment of this application;

[0028] Figure 16 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0029] Figure 17 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0030] Figure 18 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0031] Figure 19 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0032] Figure 20 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0033] Figure 21 is a schematic diagram of the hinge assembly according to an embodiment of this application;

[0034] Figure 22 is a cross-sectional view of the hinge assembly in the EE direction in the embodiment shown in Figure 21;

[0035] Figure 23 is a partial enlarged view of the hinge assembly in region F of the embodiment shown in Figure 22;

[0036] Figure 24 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0037] Figure 25 is an exploded view of the rotating mechanism according to an embodiment of this application;

[0038] Figure 26 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0039] Figure 27 is an exploded view of the rotating mechanism according to an embodiment of this application;

[0040] Figure 28 is a partial enlarged view of the hinge assembly in region G in the embodiment shown in Figure 27;

[0041] Figure 29 is a schematic diagram of the rotating mechanism according to an embodiment of this application;

[0042] Figure 30 is a structural schematic diagram of region H of the rotating mechanism in the embodiment shown in Figure 29.

[0043] Reference numerals: 100 Hinge assembly, 110 Support component, 111 Rotating shaft, 112 Support plate, 114 Buckle, 116 Bracket, 119 Housing, 120 Rotating mechanism, 122 First swing arm, 1222 Slide groove, 1223 Mounting groove, 1224 Opening, 1225 First slot, 1226 First swing rod, 1227 First slide rail, 1222a First slide groove, 1228 Second slide rail, 1222b Second slide groove, 124 Second swing arm, 1242 Second slot, 1244 Second swing rod, 1245 First surface, 1246 First slider, 1248 Second slider, 1249 First tooth, 126 Elastic component, 1262 First buckle, 1264 Second buckle, 1265 Base plate, 1266 Top plate, 1267 Gap, 1268 Protrusion, 130 First gear, 132 Second gear. Detailed Implementation

[0044] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0045] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] The hinge assembly and electronic device according to embodiments of this application are described below with reference to Figures 1 to 30.

[0048] As shown in Figures 1, 2, 3, 9, 10, 19, 20, 21, 22, 23, and 24, a hinge assembly 100 according to some embodiments of this application includes: a support member 110, which includes a pivot 111; and two rotating mechanisms 120 symmetrically arranged on the support member 110 and linked together. Each rotating mechanism 120 includes a first swing arm 122, a second swing arm 124, and an elastic member 126. The first swing arm 122 is rotatably connected to the pivot 111. Next, the first swing arm 122 includes a slide groove 1222; the second swing arm 124 is rotatably connected to the rotating shaft 111, and the first swing arm 122 and the second swing arm 124 are arranged side by side along the axial direction of the rotating shaft 111, with a portion of the second swing arm 124 located in the slide groove 1222, and the second swing arm 124 can slide along the slide groove 1222; the elastic member 126 is connected to the first swing arm 122, and the elastic member 126 contacts the second swing arm 124, and the elastic member 126 is used to press the portion of the second swing arm 124 located in the slide groove 1222 onto the inner surface of the slide groove 1222 by elastic force.

[0049] In Figures 1 and 2, the hinge assembly 100 is in a folded state. Figure 1 shows the front of the hinge assembly 100, and Figure 2 shows the back of the hinge assembly 100.

[0050] In Figures 19 and 20, the hinge assembly 100 is in the unfolded state. Figure 19 shows the front of the hinge assembly 100, and Figure 20 shows the back of the hinge assembly 100.

[0051] In this embodiment, the hinge assembly 100 includes a support member 110 and two rotating mechanisms 120. A rotating shaft 111 is provided on the support member, and the two rotating mechanisms 120 are fixed on the support member 110 through the rotating shaft 111. The two rotating mechanisms 120 are symmetrically distributed on the support member 110. One rotating mechanism 120 can be used to connect a first folding body on an electronic device, and the other rotating mechanism 120 can be used to connect a second folding body on an electronic device. Flexible screens are installed on the first folding body and the second folding body.

[0052] Two rotating mechanisms 120 are linked to mirror the movement on the support component 110. When the user moves the first folding body and / or the second folding body, the two linked rotating mechanisms 120 realize the synchronous unfolding and folding of the first folding body and the second folding body, so that the user can unfold or fold the flexible screen.

[0053] Specifically, the first swing arm 122 is rotatably connected to the rotating shaft 111, and the second swing arm 124 is also rotatably connected to the rotating shaft 111. The first swing arm 122 and the second swing arm 124 are arranged side by side on the support member 110 along the axial direction of the rotating shaft 111, and the first swing arm 122 and the second swing arm 124 rotate relative to the same rotation axis.

[0054] The first swing arm 122 is provided with a sliding groove 1222, the extension direction of which is perpendicular to the rotation axis of the first swing arm 122 and the second swing arm 124. A portion of the second swing arm 124 is inserted into the sliding groove 1222. When the user flips the first folding body and / or the second folding body of the electronic device, torque is transmitted between the first swing arm 122 and the second swing arm 124 through the sliding groove 1222. Specifically, the first swing arm 122 can drive the second swing arm 124 to rotate through the sliding groove 1222, and the second swing arm 124 can also drive the first swing arm 122 to rotate through the sliding groove 1222. During the rotation, the second swing arm 124 slides relative to the first swing arm 122 along the extension direction of the sliding groove 1222, so that the first swing arm 122 and the second swing arm 124 can rotate synchronously.

[0055] Inevitably, processing and assembly errors will occur during production and assembly. These errors will cause a gap 1267 between the second swing arm 124 and the slide 1222. During the process of transmitting torque between the first swing arm 122 and the second swing arm 124 through the slide 1222, the first swing arm 122 or the second swing arm 124 needs to first compensate for the gap 1267 by idling at a certain angle before it can be transmitted through the tightly fitted slide 1222 and the second swing arm 124. This results in a synchronization error between the first swing arm 122 and the second swing arm 124, affecting the normal opening and closing of the flexible screen.

[0056] Based on this, the hinge assembly 100 is also provided with an elastic member 126, which is fixed to the first swing arm 122. Under the support of the first swing arm 122, the elastic member 126 abuts against the second swing arm 124. After assembly, the elastic member 126 and the second swing arm 124 remain in contact. The deformed elastic member 126 applies elastic force to the second swing arm 124, causing the second swing arm 124 in the slide groove 1222 to be pressed against the inner surface of the slide groove 1222. That is, the second swing arm 124 is clamped together by the elastic member 126 and the inner wall of the slide groove 1222. The elastic member 126 is in a compressed state. The compressed elastic member 126 continuously applies a pushing force to the second swing arm 124, and the second swing arm 124 is pressed tightly against the inner wall of the slide groove 1222 under the action of this pushing force.

[0057] Therefore, this application, by setting the elastic component 126 to compress the second swing arm 124 in the slide groove 1222, allows the elastic component 126 to cooperate with the inner wall of the slide groove 1222 to clamp and position the second swing arm 124, eliminating the gap 1267 between the slide groove 1222 and the second swing arm 124. This ensures that the second swing arm 124 can always be against the inner wall of the slide groove 1222. When the user moves the first folding body and / or the second folding body of the electronic device, the tightly cooperating first swing arm 122 and second swing arm 124 can respond immediately and transmit torque in the first moment, avoiding the first swing arm 122 or the second swing arm 124 from spinning freely, eliminating the synchronization error between the first swing arm 122 and the second swing arm 124, and enabling the two sides of the folding screen to open and close synchronously. This reduces the possibility of creases on the flexible screen, extends the service life of the folding screen, and solves the technical problem of synchronization error in the hinge mechanism during opening and closing. It also optimizes the structure of the hinge assembly 100, improves the reliability of the hinge assembly 100, reduces the failure rate of the electronic device, and improves the user experience.

[0058] As shown in Figures 7, 8, 9 and 10, in some embodiments, the first swing arm 122 may optionally include a mounting groove 1223, the opening of which communicates with the slide groove 1222; a portion of the elastic member 126 is embedded in the mounting groove 1223, and another portion of the elastic member 126 extends through the opening 1224 to the slide groove 1222 and abuts against a portion of the second swing arm 124 in the slide groove 1222.

[0059] In this embodiment, the first swing arm 122 is further provided with a mounting groove 1223, which is located outside the slide groove 1222. The mounting groove 1223 includes an opening 1224, which connects to the slide groove 1222. The opening 1224 faces the second swing arm 124. The shape of the opening 1224 is adapted to the outer contour shape of the elastic member 126.

[0060] As shown in Figures 25, 26, 27, 28, 29, and 30, during the assembly process, the elastic component 126 is first inserted into the mounting groove 1223, so that the elastic component 126 is fitted into the mounting groove 1223. After the assembly of the elastic component 126 is completed, a portion of the elastic component 126 extends out of the mounting groove 1223 through the opening 1224. Subsequently, the second swing arm 124 is inserted into the slide groove 1222. The inserted second swing arm 124 abuts against the elastic component 126 extending from the opening 1224. In this case, the bottom wall of the mounting groove 1223 and the outer surface of the second swing arm 124 jointly press the elastic component 126, keeping the elastic component 126 in a compressed state. The elastic component 126 can continuously apply a pushing force to the second swing arm 124, ensuring that the portion of the second swing arm 124 inserted into the slide groove 1222 is tightly fitted with the inner wall of the slide groove 1222, thereby completing the assembly of the rotating mechanism 120.

[0061] By setting the mounting groove 1223 of the matching elastic component 126, the elastic component 126 can be accurately positioned on the first swing arm 122, avoiding misalignment or even detachment of the elastic component 126 on the first swing arm 122, and ensuring that the elastic component 126 can eliminate the gap 1267 between the second swing arm 124 and the groove through elastic force, thereby improving the reliability of the hinge assembly 100 and extending the service life of the electronic device.

[0062] On the other hand, setting independent mounting slots 1223 and sliding grooves 1222 can provide convenient conditions for assembling the rotating mechanism 120, reduce the possibility of mis-installation or omission of the elastic component 126 and the second swing arm 124, thereby achieving the technical effect of reducing the assembly difficulty of the hinge assembly 100 and improving the yield rate of the hinge assembly 100.

[0063] As shown in Figures 5, 8, 11, 12, 13, and 14, in some embodiments, optionally, the first swing arm 122 further includes a first slot 1225, which communicates with the mounting groove 1223; the elastic component 126 includes a first buckle 1262, which faces away from the second swing arm 124 and engages with the first slot 1225; wherein, the first slot 1225 passes through the first swing arm 122.

[0064] In this embodiment, a first slot 1225 is provided on the first swing arm 122. The first slot 1225 is formed on the bottom wall of the mounting groove 1223, and specifically the first slot 1225 is opposite to the opening 1224.

[0065] Correspondingly, the elastic component 126 is provided with a first buckle 1262, which protrudes outward and its shape is adapted to the shape of the first slot 1225. The first buckle 1262 and the first slot 1225 can be engaged together to achieve interlocking.

[0066] During the insertion of the elastic member 126 into the mounting groove 1223, the first latch 1262 retracts under the push of the bottom wall of the mounting groove 1223 until the first latch 1262 slides to the position opposite to the first latch 1225. When the first latch 1262 is opposite to the first latch 1225, the bottom wall of the mounting groove 1223 no longer restricts the first latch 1262, and the first latch 1262 pops out into the first latch 1225. Thus, the first latch 1225 and the first latch 1262 achieve a limit, preventing the elastic member 126 from exiting the mounting groove 1223 and preventing the elastic member 126 from being further inserted into the mounting groove 1223.

[0067] Therefore, by setting the first buckle 1262 and the first slot 1225, the cooperating first buckle 1262 and the first slot 1225 can limit the elastic component 126. On the one hand, this ensures that the elastic component 126 can be accurately installed in the predetermined position, avoiding assembly errors between the elastic component 126 and the first swing arm 122. On the other hand, during the sliding process of the second swing arm 124 relative to the first swing arm 122, the second swing arm 124 will not only apply pressure to the elastic component 126, but also apply a pushing and pulling force to the elastic component 126. The first buckle 1262 and the first slot 1225, which are engaged together, can offset this pushing and pulling force, allowing the elastic component 126 to stop in the predetermined position, preventing the elastic component 126 from being misaligned or even falling off. This achieves the technical effect of improving the fitting accuracy of the rotating components and improving the rotation synchronization rate of the first swing arm 122 and the second swing arm 124.

[0068] Specifically, the first slot 1225 passes through the first swing arm 122. When it is necessary to disassemble the elastic component 126, the first buckle 1262 in the first slot 1225 is pushed by a tool to make the first buckle 1262 exit the first slot 1225, and then the elastic component 126 can be pulled out from the mounting groove 1223.

[0069] As shown in Figures 4, 6, 17, 18 and 22, in some embodiments, optionally, the second swing arm 124 includes a second slot 1242 facing the elastic member 126; the elastic member 126 also includes a second buckle 1264, which engages with the second slot 1242.

[0070] In this embodiment, a second slot 1242 is provided on the second swing arm 124, and the second slot 1242 is located on the side of the second swing arm 124 facing the elastic member 126.

[0071] Correspondingly, the elastic member 126 is provided with a second buckle 1264. The shape of the second buckle 1264 is adapted to the shape of the second slot 1242. The second buckle 1264 can rotate in the second slot 1242, and the second slot 1242 can limit the second buckle 1264 to prevent the second buckle 1264 from coming out of the second slot 1242.

[0072] During the assembly process, after the elastic component 126 is installed to the predetermined position by the first buckle 1262 and the first slot 1225, the second buckle 1264 protrudes outward toward the side opposite to the opening 1224. Then, during the process of inserting the second swing arm 124 into the slide groove 1222, the second buckle 1264 is engaged in the second slot 1242.

[0073] During the synchronous rotation of the first swing arm 122 and the second swing arm 124, the second latch 1264 deflects within the second slot 1242, and the edge of the second slot 1242 can limit the second latch 1264 to prevent the second swing arm 124 from rotating in the direction of amplitude, thereby completing the limiting of the second swing arm 124. This achieves the technical effect of improving the matching accuracy of the rotating components and improving the rotation synchronization rate of the first swing arm 122 and the second swing arm 124.

[0074] As shown in Figures 4, 6, 10, 15, and 16, in some embodiments, the elastic member 126 optionally includes: a base plate 1265 disposed in a mounting groove 1223; a top plate 1266 connected to the base plate 1265, with a gap 1267 between the top plate 1266 and the base plate 1265; a portion of the top plate 1266 bends away from the base plate 1265 to form a protrusion 1268, which abuts against the second swing arm 124 through an opening 1224.

[0075] In this technical solution, the elastic component 126 includes a top plate 1266 and a bottom plate 1265 connected to each other. The top plate 1266 is fastened to the bottom plate 1265, and the bottom plate 1265 is attached to the bottom wall of the mounting groove 1223. A part of the top plate 1266 is embedded in the mounting groove 1223, and the other part extends out of the mounting groove 1223 through the opening 1224.

[0076] Specifically, at least a portion of the top plate 1266 is bent away from the bottom plate 1265, forming an outwardly protruding portion 1268 on the top plate 1266. On the other hand, a gap 1267 can be reserved between the top plate 1266 and the bottom plate 1265. This gap 1267 can provide deformation space for the top plate 1266. After the assembly of the second swing arm 124 is completed, the second swing arm 124 presses against the protruding portion 1268, and the top plate 1266 deforms in the direction of the bottom plate 1265. The top plate 1266, which remains in the deformed state, can continuously apply elastic force to the second swing arm 124, thereby eliminating the fitting gap 1267 between the second swing arm 124 and the slide groove 1222.

[0077] When the second swing arm 124 slides relative to the slide groove 1222, the contact area between the second swing arm 124 and the top plate 1266 changes. The gap 1267 reserved between the top plate 1266 and the bottom plate 1265 can reserve deformation allowance for the top plate 1266, preventing the top plate 1266 from being unable to deform further due to being tightly attached to the bottom plate 1265. This achieves the technical effect of improving the structural stability and reliability of the elastic component 126 and improving the rotation synchronization rate of the first swing arm 122 and the second swing arm 124.

[0078] As shown in Figures 5 and 6, in some embodiments, the bottom plate 1265 and the top plate 1266 are optionally integral structures formed by stamping.

[0079] In this embodiment, the elastic component 126 can be integrally formed by a stamping process. Specifically, an unfolded base plate 1265 and a top plate 1266 can be stamped out using a punch press. During the stamping process, a U-shaped through groove is punched out of the base plate 1265, and the latch inside the through groove is bent outward by the impact to integrally form a first buckle 1262 on the base plate 1265. The middle region of the top plate 1266 is bent by impacting it to form a protrusion 1268. The straight edge is bent outward by impacting the support edge reserved on the top plate 1266 to form a second buckle 1264 on the top plate 1266.

[0080] Subsequently, the bottom plate 1265 and top plate 1266, which have completed the stamping process, are joined together by a bending process to complete the preparation of the elastic component 126. Specifically, the joint between the top plate 1266 and the bottom plate 1265 can be connected by a welding process to prevent the top plate 1266 from warping.

[0081] By integrally forming the elastic component 126 through a stamping process, the structural and process complexity of the elastic component 126 can be reduced, thereby improving the production efficiency of the elastic component 126 and reducing the production cost of the elastic component. At the same time, compared with the elastic component 126 spliced ​​from multiple parts, the integral elastic component 126 has higher structural strength, can effectively resist the pressure of the second swing arm 124, and has the advantages of long service life and low failure rate.

[0082] As shown in Figures 9 and 10, in some embodiments, the elastic member 126 can optionally be inserted into the mounting groove 1223 along a first direction (indicated by arrow f in Figure 25); the elastic member 126 is cut by a surface perpendicular to the first direction, and the protrusion 1268 in the cross section is an isosceles trapezoid.

[0083] In this embodiment, the shape of the protrusion 1268 is defined. Specifically, the elastic member 126 can be inserted into the mounting groove 1223 along the first direction. Based on this, the shape of the protrusion 1268 can be obtained by cutting the elastic member 126 with a plane perpendicular to the first direction.

[0084] Specifically, the cross-section of the protrusion 1268 adopts an isosceles trapezoidal design. The isosceles trapezoidal design allows the elastic component 126 to achieve elastic support for the left and right elastic arms in a small space. Compared with the commonly used U-shaped single-sided elastic piece in a small space, under the condition of pressure, the isosceles trapezoidal elastic piece can deform synchronously on both sides, and the elastic arms on both sides can slide outward to provide greater elastic support. This ensures that the second swing arm 124 is in close contact with the slide groove 1222, eliminates the fitting gap 1267 between the second swing arm 124 and the slide groove 1222, and thus improves the fitting accuracy of the second swing arm 124 and the slide groove 1222, and improves the rotation synchronization rate of the first swing arm 122 and the second swing arm 124.

[0085] Specifically, in Figure 10, arrow a shows the pressure of the second swing arm 124 on the protrusion 1268, arrow b points to the two spring arms on the left and right sides of the protrusion 1268 under the isosceles trapezoidal design, and arrow c shows the sliding direction of the right spring arm when it is under pressure.

[0086] As shown in Figures 4, 7, 8 and 11, in some embodiments, optionally, the first swing arm 122 includes a first swing rod 1226, a first slide rail 1227 and a second slide rail 1228. The first slide rail 1227 and the second slide rail 1228 are disposed on the first swing rod 1226. The first slide rail 1227 includes a first slide groove 1222a, and the second slide rail 1228 includes a second slide groove 1222b. The first slide groove 1222a and the second slide groove 1222b are opposite to each other.

[0087] The second swing arm 124 includes a second swing rod 1244, a first slider 1246 and a second slider 1248. The first slider 1246 and the second slider 1248 are located on opposite sides of the second swing rod 1244. The second swing rod 1244 is clamped between the first slide rail 1227 and the second slide rail 1228. The first slider 1246 is located in the first slide groove 1222a, and the second slider 1248 is located in the second slide groove 1222b. The elastic member 126 abuts against the second swing rod 1244.

[0088] In this embodiment, the first swing arm 122 includes a first swing rod 1226, a first slide rail 1227, and a second slide rail 1228.

[0089] The first rocker arm 1226 is rotatably mounted on the support member 110. The first slide rail 1227 and the second slide rail 1228 are mounted on the first rocker arm 1226. The first slide rail 1227 has a first groove 1222a, and the second slide rail 1228 has a second groove 1222b. The extending directions of the first groove 1222a and the second groove 1222b are perpendicular to the axis of rotation of the first rocker arm 1226. The first slide rail 1227 and the second slide rail 1228 are symmetrically arranged on the first rocker arm 1226 so that the first groove 1222a and the second groove 1222b are opposite each other. At the same time, the first slide rail 1227 and the second slide rail 1228 are spaced apart to facilitate the insertion of the second rocker arm 124.

[0090] Based on this, the second swing arm 124 includes a second swing rod 1244, a first slider 1246, and a second slider 1248.

[0091] The second rocker arm 1244 is rotatably mounted on the support member 110, and the second rocker arm 1244 and the first rocker arm 1226 share the same axis of rotation. A first slider 1246 and a second slider 1248, which are symmetrically protruding, are provided on opposite sides of the second rocker arm 1244. During assembly, the first slider 1246 is inserted into the first groove 1222a, and the second slider 1248 is inserted into the second groove 1222b. During the synchronous rotation of the first rocker arm 122 and the second rocker arm 124, the first slider 1246 slides along the first groove 1222a, and the second slider 1248 slides along the second groove 1222b.

[0092] By setting the first slide rail 1227, the second slide rail 1228, the first slider 1246, and the second slider 1248, the second swing arm 124 can be positioned on both sides while maintaining the sliding connection between the first swing arm 122 and the second swing arm 124. This ensures that the second swing arm 124 can slide along a predetermined trajectory on the first swing arm 122, reducing the possibility of the second swing arm 124 sliding off course. This improves the matching accuracy of the first swing arm 122 and the second swing arm 124, and enhances the rotation synchronization rate of the first swing arm 122 and the second swing arm 124.

[0093] As shown in Figures 4, 7 and 8, in some embodiments, optionally, the first rocker arm 1226, the first slide rail 1227 and the second slide rail 1228 are injection-molded integral structures; and / or the second rocker arm 1244, the first slider 1246 and the second slider 1248 are injection-molded integral structures.

[0094] In this technical solution, the first rocker arm 1226, the first slide rail 1227, and the second slide rail 1228 can be integrally molded using injection molding. Injection molding of the first rocker arm 122 reduces its structural and manufacturing complexity, thereby improving production efficiency and reducing production costs. Furthermore, the integral design eliminates structural connection points between the first rocker arm 1226, the first slide rail 1227, and the second slide rail 1228, giving the first rocker arm 122 higher resistance to bending and torsion, thus reducing the likelihood of bending or even breakage.

[0095] Similarly, the second rocker arm 1244, the first slider 1246, and the second slider 1248 can be integrally molded using injection molding. Injection molding of the second rocker arm 124 reduces its structural and manufacturing complexity, improving production efficiency and reducing production costs. Furthermore, the integral design eliminates structural connection points between the second rocker arm 1244, the first slider 1246, and the second slider 1248, giving the second rocker arm 124 higher resistance to bending and torsion, thus reducing the likelihood of bending or even breakage.

[0096] As shown in Figures 16, 17 and 18, in some embodiments, optionally, the first slider 1246 and the second slider 1248 are cylindrical; on the second rocker arm 1244, the surface that contacts the elastic member 126 is the first surface 1245, which is an annular surface, and the first slider 1246, the second slider 1248 and the first surface 1245 share a common axis.

[0097] In this embodiment, the first slider 1246 and the second slider 1248 on the second rocker arm 1244 are columnar to form a synchronous sliding pin.

[0098] The pressing position of the elastic component 126 is the concentric outer circle of the synchronous sliding pin. In Figure 16, arrow d shows the concentric outer circle of the synchronous sliding pin, and arrow e points to the pressing position of the elastic component 126. Compared with the technical solution of directly pressing the elastic component 126 onto the synchronous sliding pin, the synchronous sliding pin has a shorter shaft diameter, similar to a simply supported beam on both sides, which makes it prone to deformation.

[0099] In response, by placing the elastic component 126 against the first surface 1245, which shares the same axis with the synchronous sliding pin, i.e., against the concentric outer circle of the synchronous sliding pin, not only can the rotational sliding process be achieved in the same way, but the elastic force is also constant. Furthermore, by reserving more space in the slide groove 1222, the diameter of the synchronous sliding pin can be increased, thereby increasing the bending modulus of the synchronous sliding pin and enhancing its strength. This achieves the technical effect of improving the structural stability of the hinge assembly 100 and reducing the failure rate of the hinge assembly 100.

[0100] As shown in Figures 13, 16, and 22, in some embodiments, optionally, the second swing arm 124 includes a first tooth 1249, and the hinge assembly 100 further includes: a first gear 130 disposed on the support member 110, in which the first gear 130 meshes with the first tooth 1249 on the second swing arm 124 in one of the two rotating mechanisms 120; and a second gear 132 disposed on the support member 110, in which the second gear 132 meshes with the first gear 130, and in which the second gear 132 meshes with the first tooth 1249 on the second swing arm 124 in the other rotating mechanism 120.

[0101] In this embodiment, the second swing arm 124 is provided with a first tooth 1249, which can be integrally formed on the second swing arm 124 by injection molding.

[0102] Based on this, a first gear 130 and a second gear 132 are provided on the support component 110. The first gear 130 and the second gear 132 can rotate on the support component 110, and the first gear 130 and the second gear 132 mesh with each other.

[0103] In the two rotating mechanisms 120, the second swing arm 124 of one rotating mechanism 120 meshes with the first gear 130 through the first tooth 1249, and the second swing arm 124 of the other rotating mechanism 120 meshes with the second gear 132 through the second tooth. This allows the two rotating mechanisms 120 to transmit power to each other through the first gear 130 and the second gear 132, realizing the mirror motion of the first rotating mechanism 120 and the second rotating mechanism 120. This adapts to the synchronous opening and closing of the folding screen, reduces the rate at which creases appear on the folding screen, and extends the service life of the folding screen.

[0104] As shown in Figures 1, 2, and 3, the support component 110 includes a support plate 112, a buckle 114, a bracket 116, and a housing 119. The support plate 112 is similar to a lotus leaf mechanism. Two rotating mechanisms 120 are fixed to both sides of the support plate 112. The buckle 114 is snapped onto the end of the support plate 112. The bracket 116 and the support plate 112 clamp and position the rotating mechanisms 120. The housing 119 is fastened to the support plate 112 to cover the bracket 116 and the rotating mechanisms 120, and the housing 119 forms the exposed surface.

[0105] One embodiment of this application provides an electronic device comprising: a hinge assembly 100 as described in any of the above embodiments; a first folding body, which is connected to a first swing arm 122 in one of the two rotation mechanisms 120; and a second folding body, which is connected to a first swing arm 122 in the other of the two rotation mechanisms 120.

[0106] In this embodiment, an electronic device including the hinge component 100 of any of the above embodiments is defined. Therefore, the electronic device has the advantages of the hinge component 100 of any of the above embodiments and can achieve the technical effects that the hinge component 100 of any of the above embodiments can achieve. To avoid repetition, it will not be described again here.

[0107] The hinge assembly 100 includes a support member 110 and two rotating mechanisms 120. The two rotating mechanisms 120 are fixed to the support member 110 and are symmetrically distributed on the support member 110. One rotating mechanism 120 can be used to connect a first folding body on the electronic device, and the other rotating mechanism 120 can be used to connect a second folding body on the electronic device. A flexible screen is mounted on the first folding body and the second folding body. The two rotating mechanisms 120 are linked to mirror the movement on the support member 110. When the user moves the first folding body and / or the second folding body, the two linked rotating mechanisms 120 realize the synchronous unfolding and folding of the first folding body and the second folding body, so as to facilitate the user to unfold or fold the flexible screen.

[0108] The electronic device can be a terminal or other devices besides a terminal. For example, the electronic device can be a mobile phone, tablet computer, laptop computer, handheld computer, vehicle-mounted electronic device 100, mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, ultra-mobile personal computer (UMPC), netbook, or personal digital assistant (PDA), etc. It can also be a personal computer (PC), television (TV), ATM, or self-service machine, etc. The embodiments of this application do not specifically limit it.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0110] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A hinge assembly, wherein, include: Support component, the support component including a rotating shaft; Two rotating mechanisms are symmetrically arranged on the support member and are linked together. Each rotating mechanism includes a first swing arm, a second swing arm, and an elastic component. The first swing arm is rotatably connected to the rotating shaft, and the first swing arm includes a sliding groove; The second swing arm is rotatably connected to the rotating shaft, and the first swing arm and the second swing arm are arranged side by side along the axial direction of the rotating shaft. The second swing arm is partially located in the slide groove and can slide along the slide groove. The elastic component is connected to the first swing arm and contacts the second swing arm. The elastic component is used to press a portion of the second swing arm located in the groove onto the inner surface of the groove through elastic force.

2. The hinge assembly according to claim 1, wherein, The first swing arm further includes a mounting groove, the opening of which communicates with the sliding groove; One part of the elastic member is embedded in the mounting groove, and the other part of the elastic member extends through the opening to the slide groove and abuts against a portion of the second swing arm in the slide groove.

3. The hinge assembly according to claim 2, wherein, The first swing arm also includes a first slot, which is connected to the mounting slot; The elastic component includes a first buckle, which faces away from the second swing arm and engages with the first slot. The first slot passes through the first swing arm.

4. The hinge assembly according to claim 3, wherein, The second swing arm includes a second slot, which faces the elastic member; The elastic component also includes a second buckle, which engages with the second slot.

5. The hinge assembly according to claim 2, wherein, The elastic component includes: The base plate is located within the mounting groove; A top plate is connected to the bottom plate, and a gap is included between the top plate and the bottom plate. A portion of the top plate is bent away from the bottom plate to form a protrusion, and the protrusion abuts against the second swing arm through the opening.

6. The hinge assembly according to claim 5, wherein, The elastic component can be inserted into the mounting slot along a first direction; The elastic member is cut by a plane perpendicular to the first direction, and the protrusion is an isosceles trapezoid in cross-section.

7. The hinge assembly according to claim 1, wherein, The first swing arm includes a first swing rod, a first slide rail and a second slide rail. The first slide rail and the second slide rail are disposed on the first swing rod. The first slide rail includes a first groove and the second slide rail includes a second groove. The first groove and the second groove are opposite to each other. The second swing arm includes a second swing rod, a first slider and a second slider. The first slider and the second slider are disposed on opposite sides of the second swing rod. The second swing rod is clamped between the first slide rail and the second slide rail. The first slider is located in the first slide groove and the second slider is located in the second slide groove. The elastic component abuts against the second swing rod.

8. The hinge assembly according to claim 7, wherein, The first slider and the second slider are cylindrical; On the second rocker arm, the surface that contacts the elastic component is the first surface, which is a ring surface. The first surface, the first slider, and the second slider share a common axis.

9. The hinge assembly according to any one of claims 1 to 8, wherein, The second swing arm includes a first tooth, and the hinge assembly further includes: A first gear is disposed on the support member, and in the two rotating mechanisms, the first gear meshes with the first tooth on the second swing arm in one of the rotating mechanisms; A second gear is disposed on the support member, the second gear meshes with the first gear, and in the two rotating mechanisms, the second gear meshes with the first tooth on the second swing arm in the other rotating mechanism.

10. An electronic device, wherein, include: The hinge assembly as described in any one of claims 1 to 9; A first folding body is connected to a first swing arm in one of the two rotating mechanisms; The second folding body is connected to the first swing arm in the other of the two rotation mechanisms.

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