Hinge mechanism and electronic device

Abstract

A hinge mechanism (100) and an electronic device are provided. The hinge mechanism (100) includes a first synchronizing component (31), a second synchronizing component (32), a connecting component (33), and an elastic assembly (34). A first protrusion is provided on one side of the first synchronizing component (31), and a gear structure is formed on the first protrusion. A second protrusion is provided on one side of the second synchronizing component (32), and a gear structure is formed on the second protrusion. The connecting component (33) is rotatably connected to the first synchronizing component (31) and the second synchronizing component (32), the rotation axes of the first synchronizing component (31) and the second synchronizing component (32) are parallel, and the gear structure of the first protrusion and the gear structure of the second protrusion mesh with each other. The elastic assembly (34) abuts against at least one of the first synchronizing component (31) and the second synchronizing component (32) and is used to generate elastic deformation along the extension direction of the rotation axis of the first synchronizing component (31) during the rotation process of the first synchronizing component (31) and the second synchronizing component (32).

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims priority from a Chinese patent application bearing application number 202310164109.8, filed on February 15, 2023, the entire disclosure of which is incorporated herein by reference.

[0002] The present disclosure relates to the technical field of foldable devices, and in particular to hinge mechanisms and electronic devices. [Background technology]

[0003] With the continuous development of technology, foldable phones are becoming more and more popular in the market and are gradually becoming more popular among consumers. Foldable phones generally have a hinge mechanism so that the smartphone can be folded. Summary of the Invention

[0004] In one aspect, an embodiment of the present disclosure provides a hinge mechanism, including a first synchronizing component, a second synchronizing component, a connecting component, and an elastic assembly. A first protrusion is provided on one side of the first synchronizing component, and a gear structure is formed on the first protrusion. A second protrusion is provided on one side of the second synchronizing component, and a gear structure is formed on the second protrusion. The connecting component is rotatably connected to the first synchronizing component and the second synchronizing component, the rotation axes of the first synchronizing component and the second synchronizing component are parallel, and the gear structure of the first protrusion and the gear structure of the second protrusion mesh with each other. The elastic assembly abuts against at least one of the first synchronizing component and the second synchronizing component, and is used to generate elastic deformation of the first synchronizing component along the extension direction of the rotation axis during rotation of the first synchronizing component and the second synchronizing component.

[0005] In another aspect, an embodiment of the present disclosure provides an electronic device, including a flexible screen and a The The flexible screen is located on one side of the hinge mechanism, with one portion connected to the first synchronous component and the other portion connected to the second synchronous component.

[0006] In order to more clearly describe the invention in the present disclosure, the following briefly describes the drawings used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also obtain other drawings based on these drawings. [Brief explanation of the drawings]

[0007] [Figure 1] 1A and 1B illustrate the overall structure of a hinge mechanism according to some embodiments. [Figure 2] 2 is a three-view diagram of the hinge mechanism shown in FIG. 1 in an unfolded state. FIG. [Figure 3] 2 is a three-view diagram of the hinge mechanism shown in FIG. 1 in a folded state. [Figure 4] 2 is a diagram showing the overall structure of the opposite side of the hinge mechanism shown in FIG. 1. FIG. [Figure 5] 5 is a diagram showing the internal structure of the hinge mechanism shown in FIG. 4. [Figure 6] 1A-1C are three-view and bottom views of a synchronous torsion module according to some embodiments. [Figure 7] 7A and 7B are three-view and bottom views of the first synchronizing component of FIG. 6; [Figure 8] 6 is a diagram showing the overall structure of the side of the first cover plate shown in FIG. 5 that is closer to the fixed plate. FIG. [Figure 9] 6 is a diagram showing the overall structure of the side of the second cover plate shown in FIG. 5 that is closer to the fixed plate. FIG. [Figure 10] 9 is a diagram showing the overall structure of the opposite side of the first cover plate shown in FIG. 8. FIG. [Figure 11] 10 is a diagram showing the overall structure of the opposite side of the second cover plate shown in FIG. 9. FIG. [Figure 12] 10A and 10B are diagrams illustrating the positional relationship between the first and second synchronizing components and the fixed plate when the hinge mechanism is in the unfolded state and the folded state. [Figure 13] 3 is a diagram showing the overall structure of the first connecting plate and the second connecting plate on the side closer to the first synchronizing component and the second synchronizing component. FIG. [Figure 14]10A and 10B are diagrams illustrating connections between the first synchronous connection assembly and the first and second decorative plates. [Figure 15] 10 is a diagram showing the overall structure of the first connecting plate and the second connecting plate on the side closer to the first decorative plate and the second decorative plate. FIG. [Figure 16] 1 illustrates the overall structure of a first synchronization connection assembly according to some embodiments. [Figure 17] 10 is a diagram showing the overall structure when the first synchronous connection assembly is attached to the fixed plate and the first connection plate. FIG. [Figure 18] FIG. 10 illustrates the connection between the synchronous connection assembly and the fixed plate. [Figure 19] 1 illustrates the overall structure of a second synchronization connection assembly according to some embodiments. [Figure 20] 1 illustrates the overall structure of a third synchronization connection assembly according to some embodiments. [Figure 21] 10A and 10B are cross-sectional views of the second and third synchronous connection assemblies when the hinge mechanism is in an unfolded state and a folded state, respectively. DETAILED DESCRIPTION OF THE INVENTION

[0008] The following will clearly and completely describe the technical solutions in the present disclosure with reference to the drawings of the present disclosure. Obviously, the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments of the present disclosure, all other embodiments that can be obtained by those skilled in the art without any creative efforts belong to the protection scope of the present disclosure.

[0009] It should be noted that in this disclosure, expressions such as "exemplary" and "for example" are used as examples, illustrations, or explanations. Any embodiment or design described in this disclosure using "exemplary" or "for example" should not be construed as being preferred or more advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" and "for example" is intended to provide a detailed description of the related concept.

[0010] Hereinafter, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying the relative importance or quantity of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the said features.

[0011] In the description of this disclosure, unless otherwise specified, " / " means "or," for example, A / B can represent A or B. In this specification, "and / or" represents a relationship between related objects and indicates that three relationships can exist, for example, A and / or B can represent A only, B only, or A and B. Furthermore, "at least one" refers to one or more, and "multiple" refers to two or more.

[0012] With the continuous development of technology, the mobile phone industry is gradually developing towards foldable phones. According to the folding direction of the foldable phone, the foldable phone can be divided into inner foldable phone and outer foldable phone.

[0013] Compared to internal foldable phones, external foldable phones can reduce the number of external screens, thereby reducing the overall thickness of the foldable phone and the weight of the entire device. However, external foldable phones require more considerations than internal foldable phones.

[0014] The hinge mechanism of a foldable phone is relatively complex and generally includes components such as a synchronization module and a torsion module. The synchronization module is used to realize synchronous rotation of the foldable phone, and the torsion module is used to provide torsion during rotation, improving the user experience.

[0015] However, the synchronization module and the torsion module of a foldable phone are generally independent modules, each performing a corresponding function, resulting in a hinge mechanism with many parts and a relatively complex overall structure.

[0016] In light of this, an embodiment of the present disclosure provides an electronic device, which is a foldable and unfoldable device. For example, the electronic device may be a foldable phone. The electronic device may include a flexible screen and a hinge mechanism. The flexible screen is located on one side of the hinge mechanism and connected to the hinge mechanism. The hinge mechanism is rotatable, and the flexible screen can be folded and unfolded by the hinge mechanism.

[0017] It can be understood that the electronic device provided in the embodiments of the present disclosure may include other components, such as a housing, a processor, a battery, etc., but further description thereof will be omitted here.

[0018] The hinge mechanism for an electronic device provided in the embodiments of the present disclosure will be further described below as shown in Fig. 1. Fig. 1 is a diagram showing the overall structure of a hinge mechanism 100 according to some embodiments, which may include multiple support plates 10, which are connected to a flexible screen (not shown) and serve to support and fix the flexible screen.

[0019] As shown in Figure 2, it can be seen that the hinge mechanism 100 has an unfolded state and a folded state. Figure 2 is a three-view diagram of the hinge mechanism 100 shown in Figure 1 in the unfolded state. When the hinge mechanism 100 is in the unfolded state, the multiple support plates 10 are on the same plane and form a support plane. In this way, the flexible screen is positioned on this support plane and maintained in a flat state.

[0020] 3, which is a three-view diagram of the hinge mechanism 100 shown in FIG. 1 in a folded state. When the hinge mechanism 100 is in the folded state, the entire hinge mechanism 100 is folded along a certain axis, and the multiple support plates 10 form multiple planes. For example, as shown in FIG. 3, the multiple support plates 10 form an arc surface of a substantially semi-cylindrical shape and two planes. In this case, a flexible screen (not shown) may be located outside the hinge mechanism 100 shown in FIG. 3 and surround the hinge mechanism 100. That is, the electronic device may be an external foldable phone.

[0021] For example, the support plates 10 may be made of a titanium alloy material. The titanium alloy material is lightweight and strong, which can reduce the weight of the hinge mechanism 100 and improve the strength of the hinge mechanism 100. Of course, the support plates 10 may be made of other materials. For example, the support plates 10 may be made of stainless steel, aluminum alloy parts, or other materials.

[0022] 4, which shows the overall structure of the opposite side of the hinge mechanism 100 shown in FIG. 1, the hinge mechanism 100 may further include a plurality of decorative plates 20. When the hinge mechanism 100 is in an unfolded state, the plurality of decorative plates 20 are located on one side of the plurality of support plates 10 and are used to hide the internal structure of the hinge mechanism 100.

[0023] As shown in Figure 5, Figure 5 is a diagram showing the internal structure of the hinge mechanism 100 shown in Figure 4, and this hinge mechanism 100 may further include a synchronous torsion module 30 and a synchronous connection assembly 40. When the hinge mechanism 100 is in an unfolded state, the synchronous torsion module 30 and the synchronous connection assembly 40 are located on one side of the multiple support plates 10. The synchronous torsion module 30 and the synchronous connection assembly 40 are connected to the multiple support plates 10 and the multiple decorative plates 20 (see Figure 4), thereby synchronously rotating the multiple support plates 10 and the decorative plates 20 (see Figure 4).

[0024] The structures of the above-mentioned synchronous torsion module 30 and synchronous connection assembly 40, and the cooperative relationship between the support plate 10 and the decorative plate 20 will be described in detail below.

[0025] As shown in FIG. 6, which is a three-view and a bottom view of a synchronous torsion module 30 according to some embodiments, the synchronous torsion module 30 may include a first synchronizing component 31, a second synchronizing component 32, a connecting component 33, and an elastic assembly 34. The connecting component 33 is rotatably connected to the first synchronizing component 31 and the second synchronizing component 32, and the rotation axes of the first synchronizing component 31 and the second synchronizing component 32 are parallel. In this manner, the first synchronizing component 31 and the second synchronizing component 32 are rotatable relative to the connecting component 33. Exemplarily, as shown in FIG. 6, the rotation axes of the first synchronizing component 31 and the second synchronizing component 32 are parallel to the X direction shown in FIG. 6.

[0026] 6, a first protrusion 311 is provided on one side of the first synchronizing component 31, and a gear structure 301 is formed on the first protrusion 311. A second protrusion 321 is provided on one side of the second synchronizing component 32, and a gear structure 301 is also formed on the second protrusion 321. The gear structure 301 of the first protrusion 311 and the gear structure 301 of the second protrusion 321 are in mesh with each other.

[0027] As a result, when one of the first synchronous component 31 and the second synchronous component 32 rotates around its own rotation axis, the other rotates in synchronization, thereby realizing synchronous rotation of the first synchronous component 31 and the second synchronous component 32.

[0028] As shown in FIG. 6, the first synchronous component 31 and the second synchronous component 32 are arranged side by side, and the sides of the first synchronous component 31 and the second synchronous component 32 that are close to each other are meshed by the gear structure 301 of the first protrusion 311 and the gear structure 301 of the second protrusion 321, and the other sides move away from and towards each other during rotation, thereby enabling the first synchronous component 31 and the second synchronous component 32 to unfold and fold.

[0029] The first and second synchronizing components 31 and 32 may be connected to the support plate 10 (see FIG. 5). Thus, the first synchronizing component 31 is connected to one part of the flexible screen, and the second synchronizing component 32 is connected to another part of the flexible screen. In this way, when the first and second synchronizing components 31 and 32 rotate, the flexible screen also rotates.

[0030] As a result, when the first and second synchronous components 31 and 32 are each connected to one of the support plates 10, the two support plates 10 can rotate synchronously. Since the support plate 10 is connected to the flexible screen, i.e., one part of the flexible screen is connected to the first synchronous component 31 and another part of the flexible screen is connected to the second synchronous component 32, the flexible screen can rotate synchronously, and ultimately, the electronic device can be synchronously folded. Furthermore, since the first and second synchronous components 31 and 32 are well synchronized, the neutral layer of the flexible screen and the neutral layer of the hinge mechanism 100 are flush with each other, which does not affect the neutral layer of the flexible screen and ensures the service life of the flexible screen.

[0031] Continuing to refer to FIG. 6, the elastic assembly 34 abuts against at least one of the first synchronizing component 31 and the second synchronizing component 32, thereby preventing the first synchronizing component 31 from rotating during the process of the first synchronizing component 31 and the second synchronizing component 32 rotating. of This causes elastic deformation along the direction in which the rotation axis extends.

[0032] In this way, when the first synchronous component 31 and the second synchronous component 32 rotate around their own rotation axes, the elastic assembly 34 applies force to the first synchronous component 31 and the second synchronous component 32, creating a damping effect when the first synchronous component 31 and the second synchronous component 32 rotate, improving the tactile sensation during the folding and unfolding of the electronic device and enhancing the user experience.

[0033] As shown in Figure 6, the synchronous torsion module 30 forms a symmetrical structure as a whole. In this way, when the synchronous torsion module 30 is folded as a whole, the overall rotation axis is located in a neutral position, allowing the user to better feel the damping effect during rotation.

[0034] As a result, in the hinge mechanism 100 provided in the embodiment of the present disclosure, the first synchronous component 31 and the second synchronous component 32, which are parallel to the rotation axis, mesh with each other through the gear structure 301 of the first protrusion 311 and the second protrusion 321, thereby realizing synchronous folding and unfolding of the first synchronous component 31 and the second synchronous component 32. In addition, the elastic assembly 34 abutting on at least one of the first synchronous component 31 and the second synchronous component 32 applies force during the synchronous rotation process, causing the first synchronous component 31 and the second synchronous component 32 to receive a damping force during rotation, improving the user's tactile sensation during the folding process. The integration of the torsion module and the synchronous module reduces the number of components of the hinge mechanism 100 and simplifies the structure of the hinge mechanism 100.

[0035] 6 , a third protrusion 312 is further provided on the side of the first synchronizing component 31 where the first protrusion 311 is located. The third protrusion 312 and the first protrusion 311 are spaced apart along the direction of the rotation axis of the first synchronizing component 31. A fourth protrusion 322 is further provided on the side of the second synchronizing component 32 where the second protrusion 321 is located. The fourth protrusion 322 and the second protrusion 321 are spaced apart along the direction of the rotation axis of the second synchronizing component 32.

[0036] 6, a portion of the elastic assembly 34 is located between the first protrusion 311 and the third protrusion 312 and abuts against the first protrusion 311 and the third protrusion 312. Another portion of the elastic assembly 34 is located between the second protrusion 321 and the fourth protrusion 322 and abuts against the second protrusion 321 and the fourth protrusion 322. The elastic assembly 34 is used to generate elastic deformation of the first synchronizing component 31 along the direction of the rotation axis by the pressure of the first protrusion 311, the second protrusion 321, the third protrusion 312, and the fourth protrusion 322.

[0037] 6, the first protrusion 311 and the third protrusion 312 are spaced apart along the rotation axis of the first synchronizing component 31, and the second protrusion 321 and the fourth protrusion 322 are spaced apart along the rotation axis of the second synchronizing component 32. When the first protrusion 311, the second protrusion 321, the third protrusion 312, and the fourth protrusion 322 apply pressure to the elastic assembly 34, the elastic assembly 34 elastically deforms along the extension direction of the rotation axis of the first synchronizing component 31. This applies force to the user during the rotation of the first synchronizing component 31 and the second synchronizing component 32, improving the user's tactile sensation during the rotation process.

[0038] In order to apply force to the elastic assembly 34 during the rotation of the first synchronizing part 31 and the second synchronizing part 32, in some embodiments, as shown in FIG. 6, the first protrusion 311 and the third protrusion 312 are both provided with a cam structure 302 on their respective end surfaces close to each other, and the second protrusion 321 and the fourth protrusion 322 are both provided with a cam structure 302 on their respective end surfaces close to each other.

[0039] The elastic assembly 34 may include a first engagement part 341, a second engagement part 342, and an elastic part 343. The first engagement part 341 abuts against the cam structure 302 of the first protrusion 311 and the cam structure 302 of the second protrusion 321. The elastic part 343 is located on the side of the first engagement part 341 away from the first protrusion 311 and the second protrusion 321, and one end abuts against the first engagement part 341.

[0040] The second engaging part 342 is located on the side of the elastic part 343 that is away from the first protrusion 311 and the second protrusion 321, Elastic parts 343 The second engagement part 342 abuts against the cam structure 302 of the third protrusion 312 and the cam structure 302 of the fourth protrusion 322.

[0041] In this way, during the rotation of the first synchronous part 31 and the second synchronous part 32, the first engaging part 341 and the second engaging part 342 are located at different positions of the cam structure 302, the first engaging part 341 and the second engaging part 342 are displaced along the direction of the rotation axis of the first synchronous part 31, and the elastic part 343 causes elastic deformation along the direction of the rotation axis of the first synchronous part 31.

[0042] The elastic part 343 is a part that can generate elastic deformation. Exemplarily, as shown in FIG. 6, the elastic part 343 may be a spring, and the spring is engaged between the first engagement part 341 and the second engagement part 342.

[0043] The number of elastic parts 343 can be set according to actual circumstances. For example, as shown in Fig. 6, two springs are provided between the first engaging part 341 and the second engaging part 342, and the first engaging part 341 and the second engaging part 342 are engaged with the ends of the two springs, respectively. Of course, the number of elastic parts 343 may be one or any other number.

[0044] Also, as shown in FIG. 7, which is a three-view and bottom view of the first synchronizing part 31 of FIG. 6, it can be seen that the cam structures 302 on the end faces close to each other of the first protrusion 311 and the third protrusion 312 are protrusion structures spaced apart in the circumferential direction around the rotation axis of the first synchronizing part 31, and recesses are formed between adjacent protrusion structures.

[0045] Similarly, the cam structures 302 on the end faces of the second protrusion 321 and the fourth protrusion 322 that are close to each other are also protrusion structures that are spaced apart in the circumferential direction around the rotation axis of the second synchronizing part 32, and recesses are formed between adjacent protrusion structures.

[0046] In this way, during the process of the first synchronous component 31 and the second synchronous component 32 rotating synchronously, the first engaging component 341 abuts against the recesses or protrusions formed on the cam structure 302 of the first protrusion 311 and the cam structure 302 of the second protrusion 321, and the second engaging component 342 abuts against the recesses or protrusions formed on the cam structure 302 of the third protrusion 312 and the cam structure 302 of the fourth protrusion 322, thereby realizing a hovering effect during rotation, improving the user's tactile sensation during the rotation process, and enhancing the experience.

[0047] In addition, to enable the first engaging part 341 and the second engaging part 342 to easily abut against the above-mentioned cam structure 302, as shown in FIG. 6, protrusions are provided on the sides of the first engaging part 341 and the second engaging part 342 that are closer to the cam structure 302, thereby improving cooperation with the cam structure 302.

[0048] 6 , the first synchronizing component 31 and the second synchronizing component 32 are rotatably connected to the connecting component 33, so that in some embodiments, the connecting component 33 may include a first connecting shaft 35, a second connecting shaft 36, a first connecting component 37, and a second connecting component 38. The first connecting shaft 35 passes through the first protrusion 311 and the third protrusion 312, and the extending direction of the first connecting shaft 35 is parallel to the rotation axis of the first synchronizing component 31. The second connecting shaft 36 passes through the second protrusion 321 and the fourth protrusion 322, and the extending direction of the second connecting shaft 36 is parallel to the rotation axis of the second synchronizing component 32.

[0049] The first connecting part 37 is located on the side of the first protrusion 311 and the second protrusion 321 that is remote from the elastic assembly 34, and is connected to the first connecting shaft 35 and the second connecting shaft 36. The second connecting part 38 is located on the side of the third protrusion 312 and the fourth protrusion 322 that is remote from the elastic assembly 34, and is connected to the first connecting shaft 35 and the second connecting shaft 36.

[0050] As a result, the first synchronizing component 31 rotates around the first connecting shaft 35, and the second synchronizing component 32 rotates around the second connecting shaft 36. The first connecting shaft 35 and the second connecting shaft 36 are both connected to the first connecting component 37 and the second connecting component 38. In this way, the first connecting shaft 35 and the second connecting shaft 36 are connected to each other by the first connecting component 37 and the second connecting component 38, thereby connecting the first synchronizing component 31 and the second synchronizing component 32 to each other.

[0051] 6, when the elastic element 343 is two springs, the two elastic elements 343 can be fitted onto the outside of the first connecting shaft 35 and the second connecting shaft 36, respectively. In this way, the two elastic elements 343 are fixed by the first connecting shaft 35 and the second connecting shaft 36, so that the elastic elements 343 are not displaced.

[0052] 6 , the first connecting part 37 has a first clearance hole 371 and a second clearance hole 372. The second connecting part 38 has a third clearance hole 381 and a fourth clearance hole 382. The first connecting shaft 35 may include a first shaft body 351, a first fixing portion 352, and a second fixing portion 353.

[0053] The first shaft body 351 passes through the first protrusion 311 and the third protrusion 312 and is inserted into the first relief hole 371 and the third relief hole 381. The first fixing portion 352 is connected to the first shaft body 351, is located on the side of the first connecting part 37 that is away from the first protrusion 311, and abuts against the first connecting part 37. The second fixing portion 353 is connected to the first shaft body 351, is located on the side of the second connecting part 38 that is away from the third protrusion 312, and abuts against the second connecting part 38. In this way, the first connecting shaft 35 is connected to the first connecting part 37 and the second connecting part 38 without falling off from them along the extension direction.

[0054] Similarly, as shown in FIG. 6 , the second connecting shaft 36 may include a second shaft body 361, a third fixing portion 362, and a fourth fixing portion 363. The second shaft body 361 passes through the second protrusion 321 and the fourth protrusion 322 and is inserted into the second relief hole 372 and the fourth relief hole 382. The third fixing portion 362 is connected to the second shaft body 361, is located on the side of the first connecting part 37 away from the second protrusion 321, and abuts against the first connecting part 37. The fourth fixing portion 363 is connected to the second shaft body 361, is located on the side of the second connecting part 38 away from the fourth protrusion 322, and abuts against the second connecting part 38. In this way, the second connecting shaft 36 is connected to the first connecting part 37 and the second connecting part 38 without falling off from them along its extension direction.

[0055] In order to allow the first connecting shaft 35 to easily pass through the first protrusion 311 and the third protrusion 312, as shown in FIG. 7, the first protrusion 311 and the third protrusion 312 are both provided with a fifth escape hole 313, and the first connecting shaft 35 passes through the first protrusion 311 and the third protrusion 312 via the fifth escape hole 313.

[0056] Similarly, the second protrusion 321 and the fourth protrusion 322 are provided with a sixth escape hole (not shown), which allows the second connecting shaft 36 to easily pass through the second protrusion 321 and the fourth protrusion 322.

[0057] 6 , a first notch and a second notch are formed on one side of second connecting part 38, spaced apart from each other. The first notch and the second notch form third relief hole 381 and fourth relief hole 382. The opening size of the first notch is smaller than the size of first shaft body 351, and the opening size of the second notch is smaller than the size of second shaft body 361.

[0058] When the first connecting shaft 35 is attached in this manner, it passes through the first relief hole 371 of the first connecting part 37 and the fifth relief holes 313 (see FIG. 7) of the first protrusion 311 and the third protrusion 312 in that order. Thereafter, the third relief hole 381 on the second connecting part 38 tightly engages the second connecting part 38 with the first shaft body 351. Because the opening dimensions of the first cutout portion are smaller than the dimensions of the first shaft body 351, the first shaft body 351 will not come out of the first cutout portion.

[0059] Similarly, when the second connecting shaft 36 is attached, the second connecting shaft 36 passes through the second relief hole 372 of the first connecting part 37 and the fifth relief holes (not shown) of the second protrusion 321 and the fourth protrusion 322 in that order. Thereafter, the fourth relief hole 382 on the second connecting part 38 tightly engages the second connecting part 38 with the second shaft body 361.

[0060] 5, the support plate 10 may include a fixing plate 11, which is used to fix the synchronous torsion module 30. The side of the first synchronous component 31 connected to the first connecting shaft 35 and the side of the second synchronous component 32 connected to the second connecting shaft 36 shown in FIG. 6 are located on the fixing plate 11 shown in FIG.

[0061] To attach the first synchronizing component 31 and the second synchronizing component 32 to the fixed plate 11, in some embodiments, as shown in FIG. 5, the hinge mechanism 100 may further include a plurality of cover plates 50, which are connected to the fixed plate 11.

[0062] As shown in FIG. 5, the hinge mechanism 100 may include a plurality of synchronous torsion modules 30, which are spaced apart along the extension direction of the fixed plate 11 and fixed to the fixed plate 11 by a plurality of cover plates 50.

[0063] As shown in FIG. 5, depending on the installation position of the cover plates 50, the plurality of cover plates 50 may include two first cover plates 51 and a second cover plate 52 located between the two first cover plates 51.

[0064] As shown in Figure 8, which illustrates the overall structure of the side of the first cover plate 51 shown in Figure 5 that is closer to the fixed plate 11 (see Figure 5), the upper cover plate 50 has a first fixing groove 501 and a second fixing groove 502 on the side that is closer to the fixed plate 11 (see Figure 5). The first fixing groove 501 is used to fix the end of the first connecting shaft 35 (see Figure 6), and the second fixing groove 502 is used to fix the end of the second connecting shaft 36 (see Figure 6).

[0065] Similarly, as shown in Figure 9, Figure 9 is a diagram showing the overall structure of the side of second cover plate 52 shown in Figure 5 that is closer to fixed plate 11 (see Figure 5). The above-mentioned first fixing groove 501 and second fixing groove 502 are also provided on the side of second cover plate 52 that is closer to fixed plate 11 (see Figure 5). The first fixing groove 501 is used to fix the end of first connecting shaft 35 (see Figure 6), and the second fixing groove 502 is used to fix the end of second connecting shaft 36 (see Figure 6).

[0066] Both ends of the first connecting shaft 35 are respectively positioned in the first fixing grooves 501 of the two adjacent cover plates 50 (i.e., the first cover plate 51 and the second cover plate 52), and both ends of the second connecting shaft 36 are respectively positioned in the second fixing grooves 502 of the two adjacent cover plates 50 (i.e., the first cover plate 51 and the second cover plate 52).

[0067] In this way, the first fixing groove 501 and the second fixing groove 502 of the cover plate 50 provide mounting positions for the first connecting shaft 35 and the second connecting shaft 36, and by engaging both ends of the first connecting shaft 35 and both ends of the second connecting shaft 36 between the cover plate 50 and the fixing plate 11, the first synchronizing part 31 and the second synchronizing part 32 are placed on the fixing plate 11 and folded and unfolded.

[0068] As described above, the first cover plate 51 and the second cover plate 52 are provided at different positions, and the first cover plate 51 and the second cover plate 52 have different numbers of first fixing grooves 501 and second fixing grooves 502. As shown in Fig. 8, the first cover plate 51 may be provided with one first fixing groove 501 and one second fixing groove 502. As shown in Fig. 9, the second cover plate 52 may be provided with two first fixing grooves 501 and two second fixing grooves 502.

[0069] 8 and 9, in order to easily position the cover plate 50, the first cover plate 51 and the second cover plate 52 are provided with cover plate positioning posts 503 on the sides closer to the fixed plate 11 (see FIG. 5). Corresponding positioning grooves or positioning holes are provided on the fixed plate 11. In this way, when the first cover plate 51 and the second cover plate 52 are attached, the cover plate positioning posts 503 allow the first cover plate 51 and the second cover plate 52 to be placed in corresponding positions, making attachment easier.

[0070] 8 and 9, the first cover plate 51 and the second cover plate 52 are provided with cover plate mounting holes 504. Corresponding mounting holes (not shown) are also provided in the fixing plate 11 (see FIG. 5).

[0071] 5, the hinge mechanism 100 may further include a screw 60. The screw 60 is inserted into the cover plate mounting hole 504 (see FIG. 8) of the cover plate 50 and the mounting hole of the fixed plate 11, and is screwed into the cover plate 50 and the fixed plate 11. In this way, the cover plate 50 is fixed to the fixed plate 11 by the screw 60.

[0072] 10 and 11, Fig. 10 is a diagram showing the overall structure of the opposite side of the first cover plate 51 shown in Fig. 8, and Fig. 11 is a diagram showing the overall structure of the opposite side of the second cover plate 52 shown in Fig. 9. Adhesive application grooves 505 are provided on the sides of the first cover plate 51 and the second cover plate 52 that are away from the fixing plate 11 (see Fig. 5).

[0073] In addition, in order to limit the rotation angle of the first synchronous component 31 and the second synchronous component 32, as shown in FIG. 6, a first abutment protrusion 314 is provided on the side of the first synchronous component 31 closer to the first connecting shaft 35, and a second abutment protrusion 324 is provided on the side of the second synchronous component 32 closer to the second connecting shaft 36.

[0074] As shown in FIG. 12, FIG. 12 shows the positional relationship between the first and second synchronizing parts 31, 32 and the fixed plate 11 when the hinge mechanism 100 is in the display state and the folded state. When the hinge mechanism 100 is in the unfolded state, the first and second abutment protrusions 314, 324 abut against the fixed plate 11, restricting further rotation of the first and second synchronizing parts 31, 32 and serving to restrict rotation.

[0075] 5, the plurality of support plates 10 further include a first connecting plate 12 and a second connecting plate 13. When the hinge mechanism 100 is in an unfolded state, the first connecting plate 12 and the second connecting plate 13 are located on both sides of the fixed plate 11. The first connecting plate 12 may be connected to one part of the flexible screen (not shown), and the second connecting plate 13 may be connected to another part of the flexible screen (not shown). The first connecting plate 12 and the second connecting plate 13 are used to fold the flexible screen (not shown).

[0076] In order to realize synchronous rotation of the first connecting plate 12 and the second connecting plate 13, as shown in FIG. 6, a first slider 315 is provided on the side of the first synchronous component 31 away from the first connecting axis 35, and a second slider 325 is provided on the side of the second synchronous component 32 away from the second connecting axis 36.

[0077] 13, which illustrates the overall structure of the first connecting plate 12 and the second connecting plate 13 on the side closer to the first synchronizing component 31 and the second synchronizing component 32, a first slide groove 121 is formed on one side of the first connecting plate 12. A first slider 315 (see FIG. 6) is positioned in the first slide groove 121 and is slidably connected to the first connecting plate 12 along a direction perpendicular to the rotation axis of the first synchronizing component 31.

[0078] A second slide groove 131 is formed on one side of the second connecting plate 13, and the second slider 325 (see Figure 6) is positioned in the second slide groove 131 and is slidably connected to the second connecting plate 13 along a direction perpendicular to the rotation axis of the second synchronizing part 32.

[0079] In this way, during the synchronous rotation of the first synchronizing component 31 and the second synchronizing component 32, the first slider 315 and the second slider 325 slide within the first slide groove 121 and the second slide groove 131, respectively, and apply forces to the groove walls of the first slide groove 121 and the groove walls of the second slide groove 131, causing the first connecting plate 12 and the second connecting plate 13 to rotate synchronously. As a result, the synchronous rotation of the first connecting plate 12 and the second connecting plate 13 also causes the flexible screen to fold and unfold synchronously.

[0080] When the hinge mechanism 100 is applied to an outer foldable phone, the first connecting plate 12 and the second connecting plate 13 slide relative to the first synchronizing component 31 and the second synchronizing component 32, resulting in a certain amount of displacement. Therefore, as shown in Fig. 13, the first slide groove 121 and the second slide groove 131 are provided at an incline. When the first connecting plate 12 and the second connecting plate 13 rotate, a slide occurs, resulting in a certain amount of displacement.

[0081] As shown in FIG. 4, the plurality of decorative plates 20 may include a first decorative plate 21, a second decorative plate 22, and a third decorative plate 23. The third decorative plate 23 may be connected to the fixed plate 11. When the hinge mechanism 100 is extended, Open In this state, the first decorative plate 21 is disposed opposite the first connecting plate 12, and the second decorative plate 22 is disposed opposite the second connecting plate 13. The first decorative plate 21 and the second decorative plate 22 may be used to shield the synchronous torsion module 30 (see FIG. 5) and the synchronous connecting assembly 40 (see FIG. 5).

[0082] 14, which illustrates the connection between the first synchronous connection component 71 and the first decorative plate 21 and the second decorative plate 22, the hinge mechanism 100 further includes a plurality of first synchronous connection components 71, one end of which is rotatably connected to the fixed plate 11, and the rotation axis of the first synchronous connection component 71 is parallel to the rotation axis of the first synchronous connection component 31 (see FIG. 13). The first decorative plate 21 is connected to a part of the first synchronous connection component 71, and the second decorative plate 22 is connected to another part of the first synchronous connection component 71.

[0083] 14 , a part of the first synchronous connection component 71 is provided facing the first decorative plate 21, and another part of the first synchronous connection component 71 is provided facing the second decorative plate 22. The first synchronous connection component 71 provided facing the first decorative plate 21 is connected to the first decorative plate 21, and the first synchronous connection component 71 provided facing the second decorative plate 22 is connected to the second decorative plate 22, so that the first decorative plate 21 and the second decorative plate 22 rotate by the first synchronous connection component 71.

[0084] In order to realize the synchronous rotation of the first decorative plate 21 and the second decorative plate 22, as shown in Fig. 14, a connecting slider 711 is formed on the other end of the first synchronizing part 31. Correspondingly, as shown in Fig. 15, Fig. 15 is a view showing the overall structure of the side of the first connecting plate 12 and the second connecting plate 13 that is closer to the first decorative plate 21 and the second decorative plate 22, in which a third slide groove (not shown) is formed on one side of the first connecting plate 12, and a fourth slide groove 132 is formed on one side of the second connecting plate 13.

[0085] A portion of the connecting slider 711 of the first synchronous connecting component 71 is located in the third slide groove and is slidably connected to the first connecting plate 12 along a direction perpendicular to the rotation axis of the first synchronous connecting component 31. Another portion of the connecting slider 711 of the first synchronous connecting component 71 is located in the fourth slide groove 132 and is slidably connected to the second connecting plate 13 along a direction perpendicular to the rotation axis of the second synchronous connecting component 32.

[0086] As described above, the first decorative plate 21 is disposed opposite the first connecting plate 12, and the second decorative plate 22 is disposed opposite the second connecting plate 13. Correspondingly, the connecting slider 711 of the first synchronous connecting component 71 connected to the first decorative plate 21 is located in the third sliding groove of the first connecting plate, and the connecting slider 711 of the first synchronous connecting component 71 connected to the second decorative plate 22 is located in the fourth sliding groove 132.

[0087] In this way, one end of the first synchronous connecting component 71 is rotatably connected to the fixed plate 11, and the other end is slidably connected to the first connecting plate 12 or the second connecting plate 13, and the first synchronous connecting component 71 rotates synchronously with the rotation of the first connecting plate 12 and the second connecting plate 13. Since the first decorative plate 21 and the second decorative plate 22 are connected to a plurality of first synchronous connecting components 71, the first decorative plate 21 and the second decorative plate 22 may be rotated synchronously by the first connecting plate 12 and the second connecting plate 13.

[0088] In some embodiments, as shown in Fig. 9, the second cover plate 52 is provided with a plurality of synchronization shafts 521. The extension direction of the synchronization shafts 521 is parallel to the extension direction of the rotation axis of the first synchronization component 31 (see Fig. 13). Correspondingly, as shown in Fig. 16, Fig. 16 is a diagram showing the overall structure of a first synchronization connection component 71 according to some embodiments, and a first arc groove 712 is formed at one end of the first synchronization connection component 71.

[0089] In this way, one end of the first synchronous connecting component 71 may be located between the synchronous shaft 521 and the fixed plate 11, and the groove wall of the first arc-shaped groove 712 is configured to surround the synchronous shaft 521. This allows the first arc-shaped groove 712 to allow the one end of the first synchronous connecting component 71 to rotate around the connecting shaft.

[0090] It can be understood that the synchronization shaft 521 may also be installed on the first cover plate 51, and for example, the structure of the cover plate 50 may be adjusted according to the installation position of the first synchronous connection component 71. For example, as shown in FIG. 17, FIG. 17 shows the overall structure when the first synchronous connection component 71 is attached to the fixed plate 11 and the first connecting plate 12, and the first synchronous connection component 71 is located at the middle position of the fixed plate 11. Therefore, as shown in FIG. 9, the synchronization shaft 521 is provided on the second cover plate 52 to cooperate with the first synchronous connection component 71 (see FIG. 17).

[0091] 14, the hinge mechanism 100 may further include a decorative plate fixing block 72 and a decorative plate fixing sheet 73. The decorative plate fixing block 72 is fixedly connected to the first synchronous connection component 71 by a screw 60. The decorative plate fixing sheet 73 is connected to the decorative plate fixing block 72 by a screw 60, and the decorative plate fixing sheet 73 is adhered to the first decorative plate 21 or the second decorative plate 22 by an adhesive.

[0092] In this way, the first decorative plate 21 and the second decorative plate 22 are connected to the first synchronous connection component 71 by the decorative plate fixing block 72 and the decorative plate fixing sheet 73. Of course, the first decorative plate 21 and the second decorative plate 22 may also be connected to the first synchronous connection component 71 directly.

[0093] 2, the plurality of support plates 10 may further include a first idle plate 14 and a second idle plate 15. When the hinge mechanism 100 is in the unfolded state, the first idle plate 14 may be located between the first connecting plate 12 and the fixed plate 11, and the second idle plate 15 may be located between the second connecting plate 13 and the fixed plate 11. The first idle plate 14 and the second idle plate 15 may be used to support and fix a flexible screen.

[0094] The synchronous connection assembly 40 may be used to synchronously rotate the first idler plate 14 and the second idler plate 15. As shown in Fig. 5, the number of the synchronous connection assemblies 40 is plural.

[0095] In some embodiments, as shown in Figure 18, Figure 18 is a diagram showing the connection between the synchronization connection assembly 40 and the fixed plate 11, and the synchronization connection assembly 40 includes a second synchronization connection component 41 and a third synchronization connection component 42. As shown in Figure 5, a part of the second synchronization connection component 41 is connected to the first link plate 12, and another part of the second synchronization connection component 41 is connected to the second link plate 13.

[0096] As shown in Figures 8 and 9, a plurality of second arc-shaped grooves 506 are formed on the first cover plate 51 and the second cover plate 52 on the side closer to the fixed plate 11 (see Figure 5). As can be seen from Figure 5, the hinge mechanism 100 has a symmetrical structure as a whole. Therefore, for example, as shown in Figures 8 and 9, two second arc-shaped grooves 506 are formed on each of the first cover plate 51 and the second cover plate 52. In addition, as shown in Figure 19, which shows the overall structure of a second synchronous connecting component 41 according to some embodiments, a third arc-shaped groove 411 is formed on the side closer to the first link plate 12 or the second link plate 13 of the second synchronous connecting component 41.

[0097] Correspondingly, as shown in FIG. 20, FIG. 20 is a diagram showing the overall structure of the third synchronization connection part 42 in some embodiments, and the third synchronization connection part 42 has a first stopper protrusion 421 and a second stopper protrusion 422.

[0098] 21, which is a cross-sectional view of the second synchronous connecting element 41 and the third synchronous connecting element 42 when the hinge mechanism 100 is in the unfolded state and the folded state. The first stopper protrusion 421 and the second stopper protrusion 422 of the third synchronous connecting element 42 are rotatably connected to the second arc-shaped groove 506 and the third arc-shaped groove 411, respectively, and the rotation axis of the third synchronous connecting element 42 is parallel to the rotation axis of the first synchronous connecting element 31 (see FIG. 5). In this way, when the first link plate 12 and the second link plate 13 rotate, the third synchronous connecting element 42 rotates synchronously.

[0099] The first idler plate 14 is connected to a part of the third synchronous connection component 42, and the second idler plate 15 is connected to another part of the third synchronous connection component 42. Illustratively, the first idler plate 14 and the second idler plate 15 can be connected to the third synchronous connection component 42 by welding.

[0100] Therefore, the third synchronous connecting part 42 rotates by the first connecting plate 12 and the second connecting plate 13, and the first idle plate 14 and the second idle plate 15 are connected to the third synchronous connecting part 42, so that the first idle plate 14 and the second idle plate 15 rotate synchronously by the third synchronous connecting part 42.

[0101] As shown in Figure 5, the third synchronous connection parts It can be seen that a portion of 42 is provided facing the first idle plate 14, and another portion of the third synchronous connection component 42 is provided facing the second idle plate 15. The third synchronous connection component 42 provided facing the first idle plate 14 is connected to the first idle plate 14, and the third synchronous connection component 42 provided facing the second idle plate 15 is connected to the second idle plate 15, thereby causing the first idle plate 14 and the second idle plate 15 to rotate.

[0102] 8 and 9, the second arc-shaped groove 506 is provided with a third stopper protrusion 507, and the third arc-shaped groove 411 is provided with a fourth stopper protrusion 412. The third stopper protrusion 507 abuts against the first stopper protrusion 421 to limit rotation within the second arc-shaped groove 506, and the fourth stopper protrusion 412 abuts against the second stopper protrusion 422 to limit rotation within the third arc-shaped groove 411. This limits the amount of displacement of the first link plate 12 (see FIG. 5) and the second link plate 13 (see FIG. 5), and ensures dimensional consistency of the hinge mechanism during folding and unfolding.

[0103] 1, when the hinge mechanism 100 is in the unfolded state, the first link plate 12 and the second link plate 13 are located on both sides of the fixed plate 11, and the first idle plate 14 and the second idle plate 15 are also located on both sides of the fixed plate 11. Therefore, referring to FIG. 5, a plurality of synchronous connection assemblies 40 are also distributed on both sides of the fixed plate 11, with the plurality of synchronous connection assemblies 40 on one side connected to the first link plate 12 and the first idle plate 14, and the synchronous connection assemblies 40 on the other side connected to the second link plate 13 and the second idle plate 15.

[0104] Based on the above description, referring to Fig. 5, in some embodiments of the hinge mechanism 100, the first link plate 12 and the second link plate 13 are synchronously rotated by the synchronous torsion modules 30 during the folding and unfolding process, and the flexible screen (not shown) is also synchronously rotated. This allows the neutral layer of the hinge mechanism 100 to be flush with the neutral layer of the flexible screen, preventing any impact on the neutral layer of the flexible screen and extending the service life of the flexible screen. As shown in Fig. 5, by providing multiple synchronous torsion modules 30, the force received by the hinge mechanism 100 during rotation is more uniform, making rotation easier, and the rotation axis of the entire hinge mechanism 100 is centralized, allowing for better consistency during the rotation process.

[0105] 6, a synchronous torsion module 30 according to some embodiments is provided, in which a first synchronous component 31 and a second synchronous component 32 are meshed with each other by a gear structure 301, ensuring that the first synchronous component 31 and the second synchronous component 32 rotate synchronously. Furthermore, an elastic assembly 34 of the synchronous torsion module 30 applies force during the rotation process, improving the user's tactile sensation. Thus, the synchronous torsion module 30 shown in FIG. 6 integrates a synchronous module and a torsion module, reducing the number of components in the hinge mechanism 100 and simplifying the structure of the hinge mechanism 100.

[0106] 21, the first stopper protrusion 421 moves in the second arc-shaped groove 506, and the second stopper protrusion 422 moves in the third arc-shaped groove 411, causing the first idler plate 14 and the second idler plate 15 to rotate synchronously with the first linking plate 12 and the second linking plate 13. In addition, the third stopper protrusion 507 shown in FIG. 8 and the fourth stopper protrusion 412 shown in FIG. 19 limit the displacement of the first stopper protrusion 421 and the second stopper protrusion 422, thereby limiting the displacement of the first linking plate 12 and the second linking plate 13, and ensuring dimensional consistency during the unfolding and folding processes of the hinge mechanism 100.

[0107] In addition, the first synchronous connecting part 71 shown in Figure 16 allows the first decorative plate 21 and the second decorative plate 22 to rotate synchronously with the rotation of the first connecting plate 12 and the second connecting plate 13, thereby shielding the internal structure of the hinge mechanism 100 and ensuring the overall appearance of the hinge mechanism 100.

[0108] Although the above description is merely a specific embodiment of the present disclosure, it will be understood by those skilled in the art that the scope of the present disclosure is not limited to the above specific examples, and modifications and substitutions can be made to specific elements of the examples without departing from the spirit of the present application. The scope of the present disclosure is limited by the claims. [Explanation of symbols]

[0109] 100 - hinge mechanism, 10 - support plate, 11 - fixing plate, 12 - first connecting plate, 121 - first slide groove, 13 - second connecting plate, 131 - second slide groove, 132 - fourth slide groove, 14 - first idle plate, 15 - second idle plate, 20 - decorative plate, 21 - first decorative plate, 22 - second decorative plate, 23 - third decorative plate, 30 - synchronous torsion module, 301 - gear structure, 302 - cam structure, 31 - first synchronous part, 311 - first protrusion, 312 - third protrusion, 313 - fifth relief hole, 314 - first abutment protrusion, 315 - first slider --32 - second synchronization part, 321 - second protrusion, 322 - fourth protrusion, 324 - second abutment protrusion, 325 - second slider, 33 - connection part, 34 - elastic assembly, 341 - first engagement part, 342 - second engagement part, 343 - elastic part, 35 - first connection shaft, 351 - first shaft body, 352 - first fixing part, 353 - second fixing part, 36 - second connection shaft, 361 - second shaft body, 362 - third fixing part, 363 - fourth fixing part, 37 - first connection part, 371 - first relief hole, 372 - second relief hole, 38 - second connection part, 381 - third relief hole, 382 - fourth relief hole, 40 - synchronization connection assembly li, 41 - second synchronous connecting part, 411 - third arc groove, 412 - fourth stopper protrusion, 42 - third synchronous connecting part, 421 - first stopper protrusion, 422 - second stopper protrusion, 50 - cover plate, 501 - first fixing groove, 502 - second fixing groove, 503 - positioning pillar, 504 - cover plate mounting hole, 505 - adhesive application groove, 506 - second arc groove, 507 - third stopper protrusion, 51 - first cover plate, 52 - second cover plate, 521 - synchronization shaft, 60 - screw, 71 - first synchronous connecting part, 711 - connecting slider, 712 - first arc groove, 72 - decorative plate fixing block, 73 - decorative plate fixing sheet.

Claims

1. A hinge mechanism comprising: a first synchronizing component having a first protrusion on one side, the first protrusion having a gear structure formed thereon; a second synchronizing component having a second protrusion on one side thereof, the second protrusion having a gear structure formed thereon; a connecting part rotatably connected to the first synchronous component and the second synchronous component, wherein the rotation axes of the first synchronous component and the second synchronous component are parallel, and the gear structure of the first protrusion and the gear structure of the second protrusion mesh with each other; an elastic assembly that abuts against at least one of the first synchronous component and the second synchronous component, and that is used to generate elastic deformation along an extension direction of a rotation axis of the first synchronous component during a rotation process of the first synchronous component and the second synchronous component; Hinge mechanism.

2. a third protrusion is further provided on the side where the first protrusion is located, and the third protrusion and the first protrusion are provided at an interval along an extension direction of the rotation axis of the first synchronous component; a fourth protrusion is further provided on the side where the second protrusion is located, and the fourth protrusion and the second protrusion are provided at an interval along the direction of the rotation axis of the second synchronous component; a part of the elastic assembly is located between the first protrusion and the third protrusion and abuts against the first protrusion and the third protrusion, and another part of the elastic assembly is located between the second protrusion and the fourth protrusion and abuts against the second protrusion and the fourth protrusion, and the elastic assembly is used to generate elastic deformation along the extension direction of the rotation axis of the first synchronous component by pressure of the first protrusion, the second protrusion, the third protrusion, and the fourth protrusion. The hinge mechanism of claim 1 .

3. a cam structure is provided on each of end surfaces of the first protrusion and the third protrusion that are close to each other, and a cam structure is provided on each of end surfaces of the second protrusion and the fourth protrusion that are close to each other, The elastic assembly includes: a first engaging part that abuts against the cam structure of the first protrusion and the cam structure of the second protrusion; an elastic part located on a side of the first engaging part away from the first protrusion and the second protrusion, the elastic part having one end abutting against the first engaging part; a second engagement part located on a side of the elastic part away from the first protrusion and the second protrusion and abutting against the other end of the elastic part, the second engagement part including a second engagement part abutting against the cam structure of the third protrusion and the cam structure of the fourth protrusion; The hinge mechanism of claim 2 .

4. The connecting part is a first connecting shaft that penetrates the first protrusion and the third protrusion, the extending direction of the first connecting shaft being parallel to a rotation axis of the first synchronizing component; a second connecting shaft that penetrates the second protrusion and the fourth protrusion, the extending direction of the second connecting shaft being parallel to the rotation axis of the second synchronizing component; a first connecting part located on a side of the first protrusion and the second protrusion away from the elastic assembly and connected to the first connecting shaft and the second connecting shaft; a second connecting part located on a side of the third protrusion and the fourth protrusion away from the elastic assembly, the second connecting part being connected to the first connecting shaft and the second connecting shaft; The hinge mechanism of claim 2 .

5. The first connecting part is provided with a first escape hole and a second escape hole, the second connecting part is provided with a third escape hole and a fourth escape hole, and the first connecting shaft is a first shaft body that passes through the first protrusion and the third protrusion and is inserted into the first relief hole and the third relief hole; a first fixing portion connected to the first shaft body, located on a side of the first connecting part away from the first protrusion portion, and abutting against the first connecting part; a second fixing portion connected to the first shaft body, located on a side of the second connecting part away from the third protrusion, and abutting against the second connecting part; The second connecting shaft is a second shaft body that passes through the second protrusion and the fourth protrusion and is inserted into the second relief hole and the fourth relief hole; a third fixing portion connected to the second shaft body, located on a side of the first connecting part away from the second protrusion portion, and abutting against the first connecting part; a fourth fixing portion connected to the second shaft body, located on a side of the second connecting part away from the fourth protrusion portion, and abutting against the second connecting part; 5. The hinge mechanism of claim 4.

6. a first notch and a second notch spaced apart from each other are formed on one side of the second connecting component, and the first notch and the second notch define the third relief hole and the fourth relief hole; an opening dimension of the first notch portion is smaller than a dimension of the first shaft body, and an opening dimension of the second notch portion is smaller than a dimension of the second shaft body; 6. The hinge mechanism of claim 5.

7. The hinge mechanism includes: a fixing plate, the side of the first synchronizing component connected to the first connecting shaft and the side of the second synchronizing component connected to the second connecting shaft being located on the fixing plate; a plurality of cover plates fixed to the fixed plate, each cover plate having a first fixing groove and a second fixing groove formed on a side of the cover plate close to the fixed plate; Both ends of the first connecting shaft are respectively positioned in the first fixing grooves of the two adjacent cover plates, and both ends of the second connecting shaft are respectively positioned in the second fixing grooves of the two adjacent cover plates.

5. The hinge mechanism of claim 4.

8. a first slider is provided on a side of the first synchronization component that is away from the first connection shaft, and a second slider is provided on a side of the second synchronization component that is away from the second connection shaft; The hinge mechanism includes: a first connecting plate having a first slide groove formed on one side thereof, the first slider being positioned in the first slide groove and slidably connected to the first connecting plate along a direction perpendicular to the rotation axis of the first synchronizing component; a second connecting plate having a second slide groove formed on one side thereof, the second slider being positioned in the second slide groove and slidably connected to the second connecting plate along a direction perpendicular to the rotation axis of the second synchronizing component; 8. The hinge mechanism of claim 7.

9. The hinge mechanism includes: a plurality of first synchronization connecting components, one end of each of which is rotatably connected to the fixed plate, and the rotation axis of each of the first synchronization connecting components is parallel to the rotation axis of the first synchronization connecting components, and the other end of each of the first synchronization connecting components has a connecting slider formed thereon; a first decorative plate connected to a portion of the first synchronous connection component; a second decorative plate connected to another part of the first synchronous connection component; a third slide groove is formed on one side of the first connecting plate, and a fourth slide groove is formed on one side of the second connecting plate; a part of the connecting slider of the first synchronous connecting component is located in the third slide groove and is slidably connected to the first connecting plate along a direction perpendicular to the rotation axis of the first synchronous connecting component; and another part of the connecting slider of the first synchronous connecting component is located in the fourth slide groove and is slidably connected to the second connecting plate along a direction perpendicular to the rotation axis of the second synchronous connecting component.

9. The hinge mechanism of claim 8.

10. The cover plate is provided with a plurality of synchronization shafts, and the extension direction of the synchronization shafts is parallel to the extension direction of the rotation axis of the first synchronization component; One end of the first synchronization connecting component is located between the synchronization shaft and the fixing plate, and a first arc-shaped groove is formed therein, and a groove wall of the first arc-shaped groove is formed to surround the synchronization shaft.

10. The hinge mechanism of claim 9.

11. A plurality of second arcuate grooves are formed on the cover plate on a side closer to the fixed plate, and the hinge mechanism is A plurality of second synchronous connection parts, some of which are connected to the first connecting plate and other parts of which are connected to the second connecting plate, and a third arc groove is formed on a side of the second synchronous connection parts close to the first connecting plate or the second connecting plate; a plurality of third synchronous connecting components having first stopper protrusions and second stopper protrusions, the first stopper protrusions and the second stopper protrusions of the third synchronous connecting components being rotatably connected to the second arc groove and the third arc groove respectively, and the rotation axis of the third synchronous connecting components being parallel to the rotation axis of the first synchronous connecting components; a first idler plate connected to a portion of the third synchronous connection component; a second idler plate connected to another part of the third synchronous connection component; 9. The hinge mechanism of claim 8.

12. An electronic device, A flexible screen and the hinge mechanism according to any one of claims 1 to 11, wherein the flexible screen is located on one side of the hinge mechanism, a portion of the flexible screen is connected to the first synchronization component, and another portion of the flexible screen is connected to the second synchronization component. electronic equipment.

Images