Folding hinge
By designing a simple folding hinge structure and utilizing the synchronous rotation of the support plate and the swing arm, the bending radius of the flexible screen is increased, solving the crease problem caused by traditional folding hinges and achieving a slim design and a good user experience.
Patent Information
- Application Number
- CN202520959828.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-05-15
AI Technical Summary
Traditional folding hinges have complex structures, resulting in a small bending radius and high pressure in the folding area of flexible screens, forming obvious creases and making it difficult to meet the requirements of thin and light designs.
The folding hinge with a simple structure is connected to the first and second support plates by hinges. The swing arm drives the two to rotate synchronously, which increases the bending radius of the flexible screen and avoids the formation of creases.
It effectively alleviates the bending pressure of flexible screens, avoids obvious creases, meets the requirements of thin and light design, and improves the user experience.
Smart Images
Figure CN223938459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding hinge technology, and in particular to a folding hinge. Background Technology
[0002] With the rapid development of flexible display technology, foldable screen mobile terminals have become an important development direction in the field of smart devices. As the core component of foldable devices, the design of the hinge mechanism directly affects the device thickness, folding shape, and screen durability.
[0003] Traditional folding hinges are often complex in structure, containing multiple precision mechanical components to ensure a smooth transition when the screen folds and unfolds. However, current foldable screen devices prioritize a thin and light design, leaving extremely limited space for the hinge to move. This results in a small bending radius and excessive pressure on the screen in the folding area, leading to noticeable creases. Utility Model Content
[0004] Based on this, the present invention provides a folding hinge with a simple structure and convenient use. The first support plate and the second support plate are hinged to each other. When the swing arm rotates, it drives the first support plate and the second support plate to rotate synchronously. The space between the two first support plates is used to accommodate the flexible screen, which increases the bending radius of the flexible screen, effectively relieves the bending pressure of the flexible screen, and avoids the formation of obvious creases.
[0005] To achieve the objectives of this utility model, the following technical solution is adopted:
[0006] A folding hinge, comprising:
[0007] The screen support assembly includes two first support plates spaced apart from each other, and a second support plate hinged to the outside of each first support plate.
[0008] Hinges are respectively installed at opposite ends of the screen support assembly; each hinge assembly includes a hinge bracket and swing arms rotatably mounted on opposite sides of the hinge bracket; the swing arms are used to slide between the first support plate and the second support plate, so that when the swing arms rotate, they drive the first support plate and the second support plate to rotate synchronously; and
[0009] The housing adapter assembly is connected to the opposite sides of each hinge assembly. The housing adapter assembly includes a housing adapter plate that is slidably connected to the swing arm and a support arm that is hinged to one end of the housing adapter plate. One end of the support arm is slidably connected to the second support plate, and the other end of the support arm is slidably connected to the hinge bracket.
[0010] The aforementioned folding hinge has a simple structure and is easy to use. The first support plate and the second support plate are hinged to each other. When the swing arm rotates, it drives the first support plate and the second support plate to rotate synchronously. The space between the two first support plates is used to accommodate the flexible screen, which increases the bending radius of the flexible screen, effectively relieves the bending pressure of the flexible screen, and avoids the formation of obvious creases.
[0011] In one embodiment, a first guide post is connected to the inner side of one end of the swing arm, and a second guide post is connected to the outer side of the other end of the swing arm.
[0012] In one embodiment, a first guide block is provided on the back of the first support plate, and a first guide groove is provided on one side of the first guide block extending from the second support plate toward the first support plate in an arc shape; the first guide post is slidably embedded in the first guide groove.
[0013] In one embodiment, a second guide block is provided on the back of the second support plate, and a second guide groove is provided on one side of the second guide block in an arc shape extending from the first support plate toward the second support plate; the second guide groove is slidably embedded in the second guide groove.
[0014] In one embodiment, the housing adapter assembly further includes a lever connected to the end of the support arm near the housing adapter plate, and an arc-shaped slider connected to the end of the support arm away from the housing adapter plate.
[0015] In one embodiment, limiting grooves are provided at opposite ends of the second support plate; the lever is slidably embedded inside the limiting groove.
[0016] In one embodiment, the end of the hinge bracket away from the swing arm is recessed inward to form a recess; the arc-shaped slider is slidably connected within the recess. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of a folding hinge in an unfolded state according to an embodiment of the present invention.
[0018] Figure 2 for Figure 1 An exploded view of the folding hinge shown.
[0019] Figure 3 for Figure 2 An exploded view of the folding hinge shown from another perspective;
[0020] Figure 4 for Figure 3 An enlarged view of circle A shown;
[0021] Figure 5 for Figure 2The diagram shows the assembly of the hinge assembly and the housing adapter assembly in the folding hinge.
[0022] Figure 6 for Figure 5 A comparative schematic diagram of the hinge assembly and the housing adapter assembly in the folding hinge shown.
[0023] Figure 7 for Figure 5 A three-dimensional schematic diagram of the housing adapter assembly in the unfolded state in the folding hinge shown;
[0024] Figure 8 for Figure 1 The diagram shows the assembly of the folding hinge and the flexible screen in a folded state.
[0025] Figure 9 for Figure 8 An enlarged view of circle B shown.
[0026] Attached image annotations:
[0027] 10-Screen support assembly, 11-First support plate, 110-Supporting recess, 12-Second support plate, 13-First guide block, 130-First guide groove, 14-Second guide block, 140-Second guide groove, 15-Limiting slide groove;
[0028] 20-Hinge assembly, 21-Hinge bracket, 210-Recess, 22-Swing arm, 23-First guide post, 24-Second guide post;
[0029] 30-Housing adapter assembly, 31-Housing adapter plate, 32-Support arm, 33-Lever, 34-Arc-shaped slider;
[0030] 40 - Flexible screen. Detailed Implementation
[0031] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0032] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0034] Please see Figures 1 to 9 The folding hinge of this utility model includes a screen support assembly 10, hinge assemblies 20 respectively installed at opposite ends of the screen support assembly 10, and housing adapter assemblies 30 respectively connected to opposite sides of each hinge assembly 20; the housing adapter assemblies 30 are also used to connect the screen support assembly 10.
[0035] The screen support assembly 10 includes two first support plates 11 spaced apart and second support plates 12 hinged to the outside of each first support plate 11. The front surfaces of both the first support plates 11 and the second support plates 12 are used to abut and support the flexible screen 40.
[0036] like Figure 3 and such Figure 4 As shown, a first guide block 13 protrudes from the back of the first support plate 11, and an arc-shaped first guide groove 130 extends from the second support plate 12 toward the first support plate 11 on one side of the first guide block 13. Furthermore, support recesses 110 are respectively provided at opposite ends of the back of the first support plate 11, and the support recesses 110 are used to position the housing adapter assembly 30.
[0037] like Figure 4 As shown, a second guide block 14 protrudes from the back of the second support plate 12, and a second guide groove 140 with an arc shape extends from the first support plate 11 toward the second support plate 12 on one side of the second guide block 14. Further, limiting slide grooves 15 are respectively provided at opposite ends of the second support plate 12, and the limiting slide grooves 15 are used to slide and connect the housing adapter assembly 30.
[0038] The hinge assembly 20 includes a hinge bracket 21 and swing arms 22 rotatably mounted on opposite sides of the hinge bracket 21. The swing arms 22 are used to slide between the first support plate 11 and the second support plate 12, so that when the swing arms 22 rotate, they drive the first support plate 11 and the second support plate 12 to rotate synchronously, thereby realizing the folding of the flexible screen 40. The swing arms 22 are mounted to the hinge bracket 21 via structures such as cams, gears, rotating shafts, and damping springs. These are common technologies in the field and will not be described in detail here.
[0039] In this embodiment, the swing arm 22 is generally arranged in the shape of "I". The inner side of one end of the swing arm 22 is connected to the first guide post 23, and the outer side of the other end of the swing arm 22 is connected to the second guide post 24. The first guide post 23 is slidably embedded in the first guide groove 130, and the second guide groove 222 is slidably embedded in the second guide groove 140.
[0040] In this embodiment, the end of the hinge bracket 21 away from the swing arm 22 is recessed inward to form a recess 210, which is used to slide the housing adapter assembly 30.
[0041] The housing adapter assembly 30 includes a housing adapter plate 31 that is slidably connected to the swing arm 22, a support arm 32 hinged to one end of the housing adapter plate 31, a lever 33 connected to the end of the support arm 32 near the housing adapter plate 31, and an arc-shaped slider 34 connected to the end of the support arm 32 away from the housing adapter plate 31. The lever 33 is slidably embedded inside the limiting groove 15 to achieve a sliding connection between the support arm 32 and the second support plate 12; the arc-shaped slider 34 is slidably connected within the recess 210 to achieve a sliding connection between the support arm 32 and the hinge bracket 21.
[0042] In this embodiment, when the flexible screen 40 is unfolded, the arc-shaped slider 34 is also used to abut against the support recess 110 to position and support the first support plate 11, so that the first support plate 11 is suspended on one side of the hinge bracket 21, thereby increasing the support force on the flexible screen 40, preventing collapse when the screen is clicked, and ensuring the user experience.
[0043] Specifically, when the flexible screen 40 is unfolded, as... Figure 1 As shown, the first support plate 11 and the second support plate 12 are laid flat in the middle of the flexible screen 40. When the flexible screen 40 is folded, the first support plate 11 and the second support plate 12 sway with the rotation of the swing arm 22. At this time, there is an angle between the first support plate 11 and the second support plate 12, and the two first support plates 11 move away from each other and form an approximate "V" shape (as shown). Figure 9 As shown, space is left between the two first support plates 11 to accommodate the flexible screen 40. Simply put, the distance between the flexible screen 40 and the hinge bracket 21 is reduced, and correspondingly, the flexible screen 40 has more room to move and its bending radius is also increased, effectively relieving the bending pressure on the flexible screen 40 and avoiding obvious creases.
[0044] The aforementioned folding hinge has a simple structure and is easy to use. The first support plate 11 and the second support plate are hinged to each other. When the swing arm 22 rotates, it drives the first support plate 11 and the second support plate 12 to rotate synchronously. The space between the two first support plates 11 is used to accommodate the flexible screen 40, which increases the bending radius of the flexible screen 40, effectively relieves the bending pressure of the flexible screen 40, and avoids the formation of obvious creases.
[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0046] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A folding hinge, characterized in that, include: The screen support assembly includes two first support plates spaced apart from each other, and a second support plate hinged to the outside of each first support plate. Hinges are respectively installed at opposite ends of the screen support assembly; the hinge assembly includes a hinge bracket and swing arms rotatably installed on opposite sides of the hinge bracket; the swing arms are used to slide between the first support plate and the second support plate, so that when the swing arms rotate, they drive the first support plate and the second support plate to rotate synchronously. and The housing adapter assemblies are respectively connected to the opposite sides of each hinge assembly; The housing adapter assembly includes a housing adapter plate that is slidably connected to the swing arm, and a support arm that is hinged to one end of the housing adapter plate; one end of the support arm is slidably connected to a second support plate, and the other end of the support arm is slidably connected to a hinge bracket.
2. The folding hinge according to claim 1, characterized in that, The inner side of one end of the swing arm is connected to a first guide post, and the outer side of the other end of the swing arm is connected to a second guide post.
3. The folding hinge according to claim 2, characterized in that, The back of the first support plate is provided with a first guide block, and one side of the first guide block extends from the second support plate toward the first support plate with a first guide groove in an arc shape; the first guide post is slidably embedded in the first guide groove.
4. The folding hinge according to claim 2, characterized in that, The back of the second support plate is provided with a second guide block, and a second guide groove with an arc shape extends from the first support plate toward the second support plate on one side of the second guide block; the second guide groove is slidably embedded in the second guide groove.
5. The folding hinge according to claim 1, characterized in that, The housing adapter assembly also includes a lever connected to the end of the support arm near the housing adapter plate, and an arc-shaped slider connected to the end of the support arm away from the housing adapter plate.
6. The folding hinge according to claim 5, characterized in that, The second support plate has limiting grooves at its two opposite ends; the lever slides into the limiting groove.
7. The folding hinge according to claim 5, characterized in that, The end of the hinge bracket furthest from the swing arm is recessed inward to form a recess; The curved slider slides into the recess.