Hinge assembly and electronic device

Abstract

The application discloses a hinge assembly and an electronic device, and belongs to the hinge assembly field.The hinge assembly comprises a first swing arm, a second swing arm, a fixed base, a fixed base, a first door plate and a second door plate; the fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are oppositely arranged; part of the first swing arm is embedded in the first rotating groove, and the other part of the first swing arm is fixedly connected with the first door plate; part of the second swing arm is embedded in the second rotating groove, and the other part of the second swing arm is fixedly connected with the second door plate; the first swing arm is rotatable relative to the central axis of the fixed base in the first rotating groove; the second swing arm is rotatable relative to the central axis of the fixed base in the second rotating groove; and the hinge assembly has a folding state and an unfolding state.

Description

Technical Field

[0001] This application belongs to the field of electronic devices, specifically relating to a hinge assembly and an electronic device. Background Technology

[0002] With the development of technology, electronic devices have become commonplace in people's daily lives. Electronic devices can capture images and videos, and also facilitate remote communication. Typically, an electronic device includes a first housing and a second housing, which are movably connected by a hinge assembly, allowing the device to switch between a folded and unfolded state. However, in related technologies, the hinge assembly has a relatively complex structure and occupies a significant amount of installation space, reducing the installation space for other components and affecting the internal space utilization of the electronic device. Summary of the Invention

[0003] The purpose of this application is to provide a hinge assembly and an electronic device, at least to solve the problem that the hinge assembly has a relatively complex structure and occupies a lot of installation space, which reduces the installation space of other components of the electronic device and affects the space utilization rate inside the electronic device.

[0004] In a first aspect, embodiments of this application provide a hinge assembly, the hinge assembly comprising: a first swing arm, a second swing arm, a fixed base, a first door panel, and a second door panel;

[0005] The fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are arranged opposite to each other. Part of the first swing arm is embedded in the first rotating groove, and another part of the first swing arm is fixedly connected to the first door panel. Part of the second swing arm is embedded in the second rotating groove, and another part of the second swing arm is fixedly connected to the second door panel. The first swing arm can rotate relative to the central axis of the fixed base in the first rotating groove, and the second swing arm can rotate relative to the central axis of the fixed base in the second rotating groove. The hinge assembly has a folded state and an unfolded state.

[0006] When the first door panel and the second door panel are close to or far from each other, the first door panel drives the first swing arm to rotate in the first rotation groove relative to the central axis of the fixed base, and the second door panel drives the second swing arm to rotate in the second rotation groove relative to the central axis of the fixed base, so that the hinge assembly switches between the folded state and the unfolded state.

[0007] In a second aspect, embodiments of this application provide an electronic device, the electronic device including a first housing, a second housing, and the hinge assembly described in the first aspect above;

[0008] The first housing is connected to the first door panel, and the second housing is connected to the second door panel. The electronic device has a folded state and an unfolded state.

[0009] When the electronic device switches from a folded state to an unfolded state, the first housing and the second housing move away from each other, and the first door panel and the second door panel move away from each other; when the electronic device switches from an unfolded state to a folded state, the first housing and the second housing move closer to each other, and the first door panel and the second door panel move closer to each other.

[0010] In this embodiment, since a portion of the first swing arm is embedded in the first rotating groove and another portion of the first swing arm is fixedly connected to the first door panel, a portion of the second swing arm is embedded in the second rotating groove and another portion of the second swing arm is fixedly connected to the second door panel, the first swing arm can rotate relative to the central axis of the fixed base in the first rotating groove, and the second swing arm can rotate relative to the central axis of the fixed base in the second rotating groove. Therefore, when the first swing arm rotates relative to the central axis of the fixed base in the first rotating groove and the second swing arm rotates relative to the central axis of the fixed base in the second rotating groove, the state of the hinge assembly can change. That is, when the state of the hinge changes, the first swing arm rotates relative to the central axis of the fixed base in the first rotating groove, and the second swing arm rotates relative to the central axis of the fixed base in the second rotating groove. Furthermore, when the hinge assembly is applied to an electronic device, the device has a first housing and a second housing. The first housing can be connected to a first door panel, and the second housing can be connected to a second door panel. When the state of the electronic device needs to be switched, force is applied to both the first and second housings, allowing them to transmit force to the hinge assembly, thus changing the state of the hinge assembly and consequently the state of the electronic device. Specifically, when the first and second housings move closer or further apart, the first housing moves the first door panel, and the second housing moves the second door panel, causing them to move closer or further apart. This allows the first door panel to rotate the first swing arm in the first rotating slot relative to the central axis of the fixed base, and the second door panel to rotate the second swing arm in the second rotating slot relative to the central axis of the fixed base. This movement of the first and second swing arms allows the hinge assembly to switch between a folded and unfolded state, and also allows the first and second housings to move closer or further apart, thus enabling the electronic device to switch between an unfolded and folded state.

[0011] In this embodiment, the hinge assembly function can be achieved by setting a first swing arm, a second swing arm, a fixed base, a first door panel, and a second door panel. Furthermore, by setting the first and second swing arms, the first swing arm effectively replaces the virtual swing arm and the synchronous swing arm, and the second swing arm effectively replaces both. Therefore, the structure of the hinge assembly in this embodiment is simpler. The relative arrangement of the first and second swing arms avoids occupying too much space in the axial direction of the hinge assembly, thus preventing the space occupied by other components inside the electronic device from decreasing and affecting the space utilization rate of the electronic device. In other words, the hinge assembly provided in this embodiment not only simplifies the structure of the hinge assembly but also improves the space utilization rate of the electronic device, allowing other components inside the electronic device to occupy more space. Attached Figure Description

[0012] Figure 1 This is a schematic diagram illustrating how a hinge assembly, according to an embodiment of this application, drives a flexible screen into a folded state.

[0013] Figure 2 One of the schematic diagrams shows a partial structure of a hinge assembly provided in an embodiment of this application;

[0014] Figure 3 This diagram illustrates a hinge assembly provided in an embodiment of this application.

[0015] Figure 4 A second schematic diagram illustrating a partial structure of a hinge assembly provided in an embodiment of this application;

[0016] Figure 5 This is a schematic diagram showing a hinge assembly provided in an embodiment of this application in an unfolded state;

[0017] Figure 6 This is a schematic diagram showing a hinge assembly provided in an embodiment of this application in a folded state.

[0018] Figure label:

[0019] 001: Flexible screen; 10: First swing arm; 11: First sliding part; 12: First connecting part; 111: Second curved surface; 121: Fixed boss; 1111: Protruding surface; 1112: Recessed surface; 20: Second swing arm; 21: Second sliding part; 22: Second connecting part; 211: Fourth curved surface; 30: Fixed base; 31: First rotating groove; 32: Second rotating groove; 301: Movable part; 302: Fixed part; 3011: First sub-groove; 3012: Second sub-groove; 3021: Third sub-groove; 3022: Fourth sub-groove; 3013: First curved surface; 3014: Third curved surface; 40: Elastic component; 50: Blocking component; 51: Sliding rod; 60: First door panel; 61: Fixed groove; 70: Second door panel. Detailed Implementation

[0020] 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.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] 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.

[0023] Before explaining the hinge assembly provided in the embodiments of this application, the application scenario of the hinge assembly provided in the embodiments of this application will be specifically described: In related technologies, the hinge assembly includes a synchronous swing arm, a virtual swing arm, and a door panel. The synchronous swing arm and the virtual swing arm are both connected to the door panel. The door panel can support the display screen of the electronic device, so that the display screen of the electronic device can also be supported at the hinge assembly, avoiding the problem of the display screen potentially sagging at the hinge assembly. In addition, the synchronous swing arm and the virtual swing arm are arranged along the axial direction of the hinge assembly, and the synchronous swing arm and the virtual swing arm move simultaneously during the movement of the hinge assembly. However, in related technologies, by setting the synchronous swing arm and the virtual swing arm, the structure of the hinge assembly becomes more complicated. Furthermore, the synchronous swing arm and the virtual swing arm are arranged along the axial direction of the hinge assembly, resulting in a large amount of space being occupied in the axial direction of the hinge assembly. This leads to a large amount of space being occupied inside the electronic device, reducing the space occupied by other components inside the electronic device and affecting the space utilization rate inside the electronic device.

[0024] like Figures 1 to 6 As shown, the hinge assembly includes: a first swing arm 10, a second swing arm 20, a fixed base 30, a first door panel 60, and a second door panel 70.

[0025] The fixed base 30 is provided with a first rotating groove 31 and a second rotating groove 32, which are arranged opposite to each other. Part of the first swing arm 10 is embedded in the first rotating groove 31, and another part of the first swing arm 10 is fixedly connected to the first door panel 60. Part of the second swing arm 20 is embedded in the second rotating groove 32, and another part of the second swing arm 20 is fixedly connected to the second door panel 70. The first swing arm 10 can rotate in the first rotating groove 31 relative to the central axis of the fixed base 30, and the second swing arm 20 can rotate in the second rotating groove 32 relative to the central axis of the fixed base 30. The hinge assembly has a folded state and an unfolded state. When the first door panel 60 and the second door panel 70 are close to or far from each other, the first door panel 60 drives the first swing arm 10 to rotate in the first rotating groove 30 relative to the central axis of the fixed base 30, and the second door panel 70 drives the second swing arm 20 to rotate in the second rotating groove 32 relative to the central axis of the fixed base 30, so that the hinge assembly switches between the folded state and the unfolded state.

[0026] In this embodiment, since a portion of the first swing arm 10 is embedded in the first rotating groove 31, and another portion of the first swing arm 10 is fixedly connected to the first door panel 60, and a portion of the second swing arm 20 is embedded in the second rotating groove 32, and another portion of the second swing arm 20 is fixedly connected to the second door panel 70, the first swing arm 10 can rotate relative to the central axis of the fixed base 30 in the first rotating groove 31, and the second swing arm 20 can rotate relative to the central axis of the fixed base 30 in the second rotating groove 32. Therefore, when the first swing arm 10 rotates relative to the central axis of the fixed base 30 in the first rotating groove 31, and the second swing arm 20 rotates relative to the central axis of the fixed base 30 in the second rotating groove 32, the state of the hinge assembly can change. That is, when the state of the hinge changes, the first swing arm 10 rotates relative to the central axis of the fixed base 30 in the first rotating groove 31, and the second swing arm 20 rotates relative to the central axis of the fixed base 30 in the second rotating groove 32. Furthermore, when the hinge assembly is applied to an electronic device, the electronic device has a first housing and a second housing, which can be connected to a first door panel 60 and a second housing to a second door panel 70. When it is necessary to switch the state of the electronic device, force is applied to the first housing and the second housing, so that the first housing and the second housing can respectively transmit force to the hinge assembly, causing the state of the hinge assembly to change, and thus causing the state of the electronic device to change. Specifically, when the first housing and the second housing move closer to or further away from each other, the first housing drives the first door panel 60 to move, and the second housing drives the second door panel 70 to move, causing the first door panel 60 and the second door panel 70 to move closer to or further away from each other. Thus, the first door panel 60 can drive the first swing arm 10 to rotate in the first rotation groove 30 relative to the central axis of the fixed base 30, and the second door panel 70 can drive the second swing arm 20 to rotate in the second rotation groove 32 relative to the central axis of the fixed base 30. Thus, the first swing arm 10 and the second swing arm 20 move closer to or further away from each other, allowing the hinge assembly to switch between the folded state and the unfolded state, and causing the first housing and the second housing to move closer to or further away from each other, thereby realizing the switching of the electronic device between the unfolded state and the folded state.

[0027] In this embodiment, the hinge assembly function can be achieved by setting a first swing arm 10, a second swing arm 20, a fixed base 30, a first door panel 60, and a second door panel 70. Furthermore, by setting the first swing arm 10 and the second swing arm 20, the first swing arm 10 effectively replaces the virtual swing arm and the synchronous swing arm, and the second swing arm 20 effectively replaces the virtual swing arm and the synchronous swing arm. Therefore, the structure of the hinge assembly in this embodiment is simpler. Moreover, the first swing arm 10 and the second swing arm 20 are arranged opposite each other, avoiding the occupancy of too much space in the axial direction of the hinge assembly. This prevents the space occupied by other components inside the electronic device from decreasing, thus avoiding the problem of reduced space utilization inside the electronic device. In other words, the hinge assembly provided in this embodiment not only simplifies the structure of the hinge assembly but also improves the space utilization of the electronic device, allowing other components inside the electronic device to occupy more space.

[0028] It should be noted that when the first door panel 60 and the second door panel 70 are close to each other, the hinge assembly switches from the unfolded state to the folded state; when the first door panel 60 and the second door panel 70 are far apart, the hinge assembly switches from the folded state to the unfolded state.

[0029] In some embodiments, the first swing arm 10 includes a first sliding part 11 and a first connecting part 12 connected to each other, and the second swing arm 20 includes a second sliding part 21 and a second connecting part 22 connected to each other. The first sliding part 11 is embedded in the first rotating groove 31 and can rotate relative to the central axis of the fixed base 30 in the first rotating groove 31. The second sliding part 21 is embedded in the second rotating groove 32 and can rotate relative to the central axis of the fixed base 30 in the second rotating groove 32. The first connecting part 12 is fixedly connected to the first door panel 60, and the second connecting part 22 is fixedly connected to the second door panel 70.

[0030] Since the first sliding part 11 is embedded in the first rotating groove 31 and can rotate relative to the central axis of the fixed base 30 in the first rotating groove 31, and the second sliding part 21 is embedded in the second rotating groove 32 and can rotate relative to the central axis of the fixed base 30 in the second rotating groove 32, when the first sliding part 11 rotates relative to the central axis of the fixed base 30 in the first rotating groove 31 and the second sliding part 21 rotates relative to the central axis of the fixed base 30 in the second rotating groove 32, the state of the hinge assembly can be changed. That is, when the state of the hinge changes, the first sliding part 11 rotates relative to the central axis of the fixed base 30 in the first rotating groove 31 and the second sliding part 21 rotates relative to the central axis of the fixed base 30 in the second rotating groove 32. Furthermore, the first connecting part 12 is connected to the first door panel 60, and the second connecting part 22 is connected to the second door panel 70. Thus, when the hinge assembly is applied to the electronic device, the first housing is connected to the first door panel 60, and the second housing is connected to the second door panel 70. When it is necessary to switch the state of the electronic device, force is applied to the first housing and the second housing. The first housing transmits the force to the first door panel 60, and the first door panel 60 transmits the force to the first sliding part 11 through the first connecting part 12, causing the first sliding part 11 to rotate relative to the central axis of the fixed base 30 in the first rotation groove 31. The second housing transmits the force to the second door panel 70, and the second door panel 70 transmits the force to the second sliding part 21 through the second connecting part 22, causing the second sliding part 21 to rotate relative to the central axis of the fixed base 30 in the second rotation groove 32. This causes the state of the hinge assembly to change, and thus the state of the electronic device to change. By providing the first sliding part 11, the first connecting part 12, the second sliding part 21, and the second connecting part 22, it is convenient to connect the first door panel 60 with the first swing arm 10 and the second door panel 70 with the second swing arm 20. This facilitates the first sliding part 11 to rotate relative to the central axis of the fixed base 30 in the first rotating groove 31 and the second sliding part 12 to rotate relative to the central axis of the fixed base 30 in the second rotating groove 32 when the first door panel 60 and the second door panel 70 move closer or further apart.

[0031] In addition, in some embodiments, both the first sliding part 11 and the second sliding part 22 are bent structures and have an arc, and the bottom of the first rotating groove 31 and the bottom of the second rotating groove 32 are also arc.

[0032] When the first door panel 60 and the second door panel 70 approach or move away from each other, the first door panel 60 drives the first sliding part 11 to rotate relative to the central axis of the fixed base 30 in the first rotating groove 31 via the first connecting part 12. When the second door panel 70 drives the second sliding part 21 to rotate relative to the central axis of the fixed base 30 in the second rotating groove 32 via the second connecting part 22, the first sliding part 11 contacts the bottom of the first rotating groove 31, and the second sliding part 12 contacts the bottom of the second rotating groove 32. Therefore, both the first sliding part 11 and the second sliding part 22 are bent structures with an arc. The bottom of the first sliding part 11 and the bottom of the second rotating groove 32 are both curved. This means that the curved first sliding part 11 rotates at the bottom of the curved first rotating groove 31, and the curved second sliding part 21 rotates at the bottom of the curved second rotating groove 32. This facilitates the rotation of the first sliding part 11 relative to the central axis of the fixed base 30 in the first rotating groove 31, and the rotation of the second sliding part 21 relative to the central axis of the fixed base 30 in the second rotating groove 32. It also ensures that the first sliding part 11 and the second sliding part 21 drive the first connecting part 12 and the second connecting part 22 to move away from or towards each other. In other words, by setting it in some embodiments, both the first sliding part 11 and the second sliding part 22 are bent structures with curvature. The bottom of the first rotating groove 31 and the bottom of the second rotating groove 32 are both curved, which facilitates the rotation of the first sliding part 11 relative to the central axis of the fixed base 30 in the first rotating groove 31, and the rotation of the second sliding part 21 relative to the central axis of the fixed base 30 in the second rotating groove 32.

[0033] In some embodiments, the hinge assembly may further include an elastic component 40, and the fixed base 30 includes a movable part 301 and a fixed part 302, which are arranged along the axial direction of the hinge assembly. The first end of the elastic component 40 is fixed, and the second end of the elastic component 40 abuts against the movable part 301. The movable part 301 is movable relative to the fixed part 302. The movable part 301 and the fixed part 302 are provided with a first rotating groove 31, and the movable part 301 and the fixed part 302 are provided with a second rotating groove 32. When the hinge assembly is in the unfolded state, the movable part 301 is located in the first position, and the length of the elastic component 40 is the first length. When the hinge assembly is in the folded state, the movable part 301 is located in the second position, and the length of the elastic component 40 is the second length, which is greater than the first length.

[0034] Since the movable part 301 and the fixed part 302 are arranged along the axial direction of the hinge assembly, and the movable part 301 and the fixed part 302 are provided with a first rotating groove 31 and a second rotating groove 32, the first sliding part 11 can be located in the first rotating groove 31 on the movable part 301 and the fixed part 302, and the second sliding part 21 can be located in the second rotating groove 32 on the movable part 301 and the fixed part 302, thereby allowing the first sliding part 11 to... When the first rotating groove 31 rotates relative to the central axis of the fixed base 30, and the second sliding part 21 rotates relative to the central axis of the fixed base 30 in the second rotating groove 32, the first sliding part 11 can simultaneously contact the movable part 301 and the fixed part 302, and the second sliding part 21 can simultaneously contact the movable part 301 and the fixed part 302. That is, the first sliding part 11 can apply force to the movable part 301, and the second sliding part 21 can apply force to the movable part 301, so that the movable part 301 moves relative to the fixed part 302. Since the first end of the elastic component 40 is fixed and the second end of the elastic component 40 abuts against the movable part 301, when the movable part 301 moves, the movable part 301 can apply force to the elastic component 40, or the elastic component 40 can apply force to the movable part 301, so that the movable part 301 can move when the first sliding part 11 and the second sliding part 21 move. Specifically, when the hinge assembly switches from a folded state to an unfolded state, the first sliding part 11 rotates in the first rotating groove 31 relative to the central axis of the fixed base 30, and the second sliding part 21 rotates in the second rotating groove 32 relative to the central axis of the fixed base 30. This causes the first sliding part 11 and the second sliding part 21 to exert force on the movable part 301, which in turn exerts force on the elastic component 40, compressing the elastic component 40 until the hinge assembly is in the unfolded state. At this point, the movable part 301 moves to the first position, and the elastic component 40 is compressed to a first length. When the hinge assembly switches from the unfolded state to a folded state, the first sliding part 11 rotates in the first rotating groove 31 relative to the central axis of the fixed base 30, and the second sliding part 21 rotates in the second rotating groove 32 relative to the central axis of the fixed base 30. This causes the elastic component 40 to exert force on the movable part 301, i.e., the elastic component 40 extends, until the hinge assembly is in the folded state. At this point, the movable part 301 moves to the second position, and the elastic component 40 is extended to a second length. In addition, when the first sliding part 11 and the second sliding part 21 rotate relative to the central axis of the fixed base 30, the movable part 301 can apply force to the elastic component 40, or the elastic component 40 can apply force to the movable part 301, so that the first sliding part 11 and the second sliding part 21 can be subjected to force, thereby allowing the user to feel the damping sensation when using the hinge assembly and improving the user experience.

[0035] It should be noted that, in the embodiments of this application, the elastic component 40 can be a spring.

[0036] In some embodiments, the movable part 301 is provided with a first sub-slot 3011 and a second sub-slot 3012, with the first sub-slot 3011 and the second sub-slot 3012 arranged opposite to each other. The fixed part 302 is provided with a third sub-slot 3021 and a fourth sub-slot 3022, with the third sub-slot 3021 and the fourth sub-slot 3022 arranged opposite to each other. The first sliding part 11 is simultaneously embedded in the first sub-slot 3011 and the third sub-slot 3021, forming at least a partial first rotating groove 31. The second sliding part 21 is simultaneously embedded in the second sub-slot 3012 and the fourth sub-slot 3022, forming at least a partial second rotating groove 32. The first sliding part 11 contacts the groove wall of the first sub-slot 3011, and the second sliding part 21 contacts the groove wall of the second sub-slot 3012.

[0037] Since the first sub-groove 3011 and the third sub-groove 3021 form at least a portion of the first rotating groove 31, when the first sliding part 11 is disposed in the first rotating groove 31, the first sliding part 11 can be simultaneously embedded in the first sub-groove 3011 and the third sub-groove 3021, and the first sliding part 11 can contact the groove wall of the first sub-groove 3011. Thus, when the first sliding part 11 rotates relative to the central axis of the fixed base 30, the first sliding part 11 can directly apply force to the groove wall of the first sub-groove 3011, that is, apply force to the movable part 301, so that the movable part 301 applies force to the elastic component 40. Thus, the reaction force of the elastic component 40 can be transmitted to the first sliding part 11 through the movable part 301, and then to the first door panel 60, so that the user feels the damping. Furthermore, since the second sub-groove 3012 and the fourth sub-groove 3022 form at least a portion of the second rotating groove 32, when the second sliding part 21 is disposed in the second rotating groove 32, the second sliding part 21 can be simultaneously embedded in the second sub-groove 3012 and the fourth sub-groove 3021, and the second sliding part 21 can contact the groove wall of the second sub-groove 3012. Thus, when the second sliding part 21 rotates relative to the central axis of the fixed base 30, the second sliding part 21 can directly apply force to the groove wall of the second sub-groove 3012, that is, apply force to the movable part 301, so that the movable part 301 applies force to the elastic component 40. Thus, the reaction force of the elastic component 40 can be transmitted to the second sliding part 21 through the movable part 301, and then to the second door panel 70, so that the user feels the damping. By providing a first sub-slot 3011 and a second sub-slot 3012 on the movable part 301, and a third sub-slot 3021 and a fourth sub-slot 3022 on the fixed part 302, it is easy to form a first rotating groove 31 and a second rotating groove 32, and it can ensure that the user can easily generate a damping feeling when the first sliding part 11 and the second sliding part 21 rotate.

[0038] In addition, in some embodiments, the wall of the first sub-groove 3011 has a first curved surface 3013, and the first sliding part 11 has a second curved surface 111. The first curved surface 3013 faces the second curved surface 111 and is in contact with the second curved surface 111. The wall of the second sub-groove 3012 has a third curved surface 3014, and the second sliding part 21 has a fourth curved surface 211. The third curved surface 3014 faces the fourth curved surface 211 and is in contact with the fourth curved surface 211.

[0039] Since the groove wall of the first sub-groove 3011 has a first curved surface 3013 and the first sliding part 11 has a second curved surface 111, when the first sliding part 11 is placed in the first sub-groove 3011, the first curved surface 3013 can contact the second curved surface 111. Thus, when the first sliding part 11 rotates relative to the central axis of the fixed base 30, the second curved surface 111 on the first sliding part 11 can contact the first curved surface 3013 at different positions. As a result, the force applied by the first sliding part 11 to the movable part 301 will be different, and the force applied by the movable part 301 to the elastic component 40 will be different. Consequently, the reaction force of the movable part 301 by the elastic component 40 will be different, resulting in different forces transmitted by the first sliding part 11 to the first door panel 60. Ultimately, this makes the user feel different damping sensations. Similarly, since the groove wall of the second sub-groove 3012 has a third curved surface 3014 and the second sliding part 21 has a fourth curved surface 211, when the second sliding part 21 is placed in the second sub-groove 3012, the third curved surface 3014 can contact the fourth curved surface 211. Thus, when the second sliding part 21 rotates relative to the central axis of the fixed base 30, the fourth curved surface 211 on the second sliding part 21 can contact the third curved surface 3014 at different positions. As a result, the force applied by the second sliding part 21 to the moving part 301 will be different, and the force applied by the moving part 301 to the elastic component 40 will be different. Consequently, the reaction force of the moving part 301 by the elastic component 40 will be different, and the force transmitted by the second sliding part 21 to the second door panel 70 will be different, ultimately making the user feel different damping sensations. By setting the first curved surface 3013, the second curved surface 111, the third curved surface 3014, and the fourth curved surface 211, the user's damping sensation changes when the first sliding part 11 and the second sliding part 21 rotate relative to the central axis of the fixed base 30, thereby improving the user experience.

[0040] In some embodiments, both the second curved surface 111 and the fourth curved surface 211 have a protruding surface 1111 and a recessed surface 1112, with the protruding surface 1111 and the recessed surface 1112 adjacent to each other. When the hinge assembly is in the unfolded state, the first curved surface 3013 contacts the protruding surface 1111 on the second curved surface 111, and the third curved surface 3014 contacts the protruding surface 1111 on the fourth curved surface 211. When the hinge assembly is in the folded state, the first curved surface 3013 contacts the recessed surface 1112 on the second curved surface 111, and the third curved surface 3014 contacts the recessed surface 1112 on the fourth curved surface 211.

[0041] Since both the second curved surface 111 and the fourth curved surface 211 have a protruding surface 1111 and a recessed surface 1112, and the protruding surface 1111 and the recessed surface 1112 are adjacent, when the first sliding part 11 is subjected to force by the first door plate 60, causing the first sliding part 11 to rotate relative to the central axis of the fixed base 30 in the first rotating groove 31, and when the second sliding part 21 is subjected to force by the second door plate 70, causing the second sliding part 21 to rotate relative to the central axis of the fixed base 30 in the second rotating groove 32, the protruding surface 1111 and the recessed surface 1112 on the second curved surface 111 of the first sliding part 11 can alternately contact the first curved surface 3013 of the first sub-groove 3011, and the protruding surface 1111 and the recessed surface 1112 on the fourth curved surface 211 of the second sliding part 21 can alternately contact the third curved surface 3014 on the second sub-groove 3012, so that the torque of the electronic device is different when it is in the unfolded state or the folded state. Specifically, when the hinge assembly is in the unfolded state, i.e., the electronic device is in the unfolded state, the first curved surface 3013 contacts the protruding surface 1111 on the second curved surface 111, and the third curved surface 3014 contacts the protruding surface 1111 on the fourth curved surface 211. This results in a larger compression amount of the movable part 301 compressing the elastic component 40, thus increasing the torque of the electronic device in the unfolded state. This ensures effective unfolding of the electronic device and avoids the problem of uneven unfolding of the electronic device in related technologies. When the hinge assembly is in the folded state, i.e., the electronic device is in the folded state, the first curved surface 3013 contacts the concave surface 1112 on the second curved surface 111, and the third curved surface 3014 contacts the concave surface 1112 on the fourth curved surface 211. This results in a smaller compression amount of the movable part 301 compressing the elastic component 40, and a smaller torque of the electronic device in the folded state. This ensures that the electronic device can be opened more easily in the folded state.

[0042] It should be noted that, in this embodiment, the first curved surface 3013 and the third curved surface 3014 may also have protruding surfaces 1111. Thus, when the hinge assembly is in the unfolded state, the protruding surface 1111 on the first curved surface 3013 contacts the protruding surface 1111 on the second curved surface 111, and the protruding surface 1111 on the third curved surface 3014 contacts the protruding surface 1111 on the fourth curved surface 211. When the hinge assembly is in the folded state, the protruding surface 1111 on the first curved surface 3013 contacts the recessed surface 1112 on the second curved surface 111, and the protruding surface 1111 on the third curved surface 3014 contacts the recessed surface 1112 on the fourth curved surface 211. With this configuration, when the electronic device is in the unfolded state, the torque of the electronic device can be further increased, ensuring effective unfolding; when the electronic device is in the folded state, the torque of the electronic device is further reduced, ensuring that the electronic device can be further easily opened when folded.

[0043] In some embodiments, the hinge assembly may include a blocking member 50, which is fixed in position and spaced apart from the movable part 301. The blocking member 50 is connected to a slide rod 51, which passes through the movable part 301. An elastic component 40 is sleeved on the slide rod 51, and the first end of the elastic component 40 abuts against the blocking member 50 to fix the first end of the elastic component 40.

[0044] Since the blocking member 50 is fixed in position and is spaced apart from the movable part 301, there is a gap between them. This allows an elastic component 40 to be positioned between the blocking member 50 and the movable part 301, with its first end released from the blocking member 50, thus fixing the first end of the elastic component 40. Because the blocking member 50 is connected to a sliding rod 51 that passes through the movable part 301, the elastic component 40 can be fitted onto the sliding rod 51. This allows the sliding rod 51 to limit the position of the elastic component 40, preventing it from shifting during compression. Furthermore, the sliding rod 51 can guide the movable part 301, preventing it from shifting during movement.

[0045] In some embodiments, the hinge assembly may also include a hinge cover (not shown in the figure), which covers the fixing base 30, the first swing arm 10 and the second swing arm 20, and the fixing part 302 is fixedly connected to the hinge cover.

[0046] Since the hinge cover conceals the fixed base 30, the first swing arm 10, and the second swing arm 20, it protects these components, preventing them from being easily damaged. Furthermore, the hinge cover improves the aesthetics of the hinge assembly, avoiding direct exposure of these components to the outside. Additionally, the fixing part 302 is fixedly connected to the hinge cover, thus providing a fixed position for the fixing part 302, facilitating its secure fixation.

[0047] It should be noted that when the hinge assembly may include a blocking member 50 and a hinge cover, the blocking member 50 may be fixed to the hinge cover, thereby providing a fixed position for the blocking member 50, which facilitates the fixing of the blocking member 50.

[0048] In some embodiments, both the first connecting portion 12 and the second connecting portion 22 are provided with fixing bosses 121, and both the first door panel 60 and the second door panel 70 are provided with fixing grooves 61, with the fixing bosses 121 embedded in the fixing grooves 61. With this arrangement, when it is necessary to connect the first connecting portion 12 to the first door panel 60, the fixing bosses 121 on the first connecting portion 12 can be directly embedded in the fixing grooves 61 on the first door panel 60 to complete the connection. Similarly, when it is necessary to connect the second connecting portion 22 to the second door panel 70, the fixing bosses 121 on the second connecting portion 22 can be directly embedded in the fixing grooves 61 on the second door panel 70 to complete the connection. In other words, by providing the fixing bosses 121 and the fixing grooves 61, the connection between the first connecting portion 12 and the first door panel 60, and the connection between the second connecting portion 22 and the second door panel 70, can be facilitated.

[0049] Of course, in this embodiment, the first connecting part 12 can also be connected to the first door panel 60 by a fastener, and the second connecting part 22 can also be connected to the second door panel 70 by a fastener, which includes, but is not limited to, bolts, pins, etc.

[0050] In this embodiment, the hinge assembly function can be achieved by setting a first swing arm 10, a second swing arm 20, a fixed base 30, a first door panel 60, and a second door panel 70. Furthermore, by setting the first swing arm 10 and the second swing arm 20, the first swing arm 10 effectively replaces the virtual swing arm and the synchronous swing arm, and the second swing arm 20 effectively replaces the virtual swing arm and the synchronous swing arm. Therefore, the structure of the hinge assembly in this embodiment is simpler. Moreover, the first swing arm 10 and the second swing arm 20 are arranged opposite each other, avoiding the occupancy of too much space in the axial direction of the hinge assembly. This prevents the space occupied by other components inside the electronic device from decreasing, thus avoiding the problem of reduced space utilization inside the electronic device. In other words, the hinge assembly provided in this embodiment not only simplifies the structure of the hinge assembly but also improves the space utilization of the electronic device, allowing other components inside the electronic device to occupy more space.

[0051] This application provides an electronic device, which includes a first housing, a second housing, and a hinge assembly as described in any of the above embodiments.

[0052] The first housing is connected to the first door panel 60, and the second housing is connected to the second door panel 70. The electronic device has a folded state and an unfolded state. When the electronic device switches from the folded state to the unfolded state, the first housing and the second housing move away from each other, and the first door panel 60 and the second door panel 70 move away from each other. When the electronic device switches from the unfolded state to the folded state, the first housing and the second housing move closer to each other, and the first door panel 60 and the second door panel 70 move closer to each other.

[0053] In this embodiment, the hinge assembly function can be achieved by setting a first swing arm 10, a second swing arm 20, a fixed base 30, a first door panel 60, and a second door panel 70. Furthermore, by setting the first swing arm 10 and the second swing arm 20, the first swing arm 10 effectively replaces the virtual swing arm and the synchronous swing arm, and the second swing arm 20 effectively replaces the virtual swing arm and the synchronous swing arm. Therefore, the structure of the hinge assembly in this embodiment is simpler. The first swing arm 10 and the second swing arm 20 are arranged opposite each other, avoiding the occupancy of too much space in the axial direction of the hinge assembly. This prevents the space occupied by other components inside the electronic device from decreasing, thus avoiding the problem of reduced space utilization inside the electronic device. In other words, the hinge assembly provided in this embodiment not only simplifies the structure of the hinge assembly but also improves the space utilization of the electronic device, increasing the space occupied by other components inside the electronic device and allowing for the integration of more components, thereby contributing to the diversification of the electronic device's functions.

[0054] It should be noted that, in the embodiments of this application, electronic devices include, but are not limited to, controllers, smart devices, terminal products, etc., wherein smart devices include, for example, smartphones, smart TVs, smart speakers, smart robots, VR devices, AR devices, XR devices, etc., and terminal products include, for example, personal computers, tablet computers, etc.

[0055] 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.

[0056] 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, characterized in that, The hinge assembly includes: a first swing arm, a second swing arm, a fixed base, a first door panel, and a second door panel; The fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are arranged opposite to each other. Part of the first swing arm is embedded in the first rotating groove, and another part of the first swing arm is fixedly connected to the first door panel. Part of the second swing arm is embedded in the second rotating groove, and another part of the second swing arm is fixedly connected to the second door panel. The first swing arm can rotate relative to the central axis of the fixed base in the first rotating groove, and the second swing arm can rotate relative to the central axis of the fixed base in the second rotating groove. The hinge assembly has a folded state and an unfolded state. When the first door panel and the second door panel are close to or far from each other, the first door panel drives the first swing arm to rotate in the first rotation groove relative to the central axis of the fixed base, and the second door panel drives the second swing arm to rotate in the second rotation groove relative to the central axis of the fixed base, so that the hinge assembly switches between the folded state and the unfolded state. The fixed base includes a movable part and a fixed part, and the movable part and the fixed part are arranged along the axial direction of the hinge assembly. The movable part is provided with a first sub-slot and a second sub-slot, the first sub-slot and the second sub-slot are arranged opposite to each other, and the fixed part is provided with a third sub-slot and a fourth sub-slot, the third sub-slot and the fourth sub-slot are arranged opposite to each other.

2. The hinge assembly according to claim 1, characterized in that, The first swing arm includes a first sliding part and a first connecting part connected to each other. The second swing arm includes a second sliding part and a second connecting part connected to each other. The first sliding part is embedded in the first rotating groove and is rotatable relative to the central axis of the fixed base in the first rotating groove. The second sliding part is embedded in the second rotating groove and is rotatable relative to the central axis of the fixed base in the second rotating groove. The first connecting part is fixedly connected to the first door panel, and the second connecting part is fixedly connected to the second door panel.

3. The hinge assembly according to claim 2, characterized in that, Both the first sliding part and the second sliding part are bent structures with arcs, and the bottom of the first rotating groove and the bottom of the second rotating groove are also arcs.

4. The hinge assembly according to claim 2, characterized in that, The hinge assembly also includes an elastic component; The first end of the elastic component is fixed, the second end of the elastic component abuts against the movable part, the movable part is movable relative to the fixed part, the movable part and the fixed part are provided with a first rotating groove, and the movable part and the fixed part are provided with a second rotating groove. When the hinge assembly is in the unfolded state, the movable part is located in the first position and the length of the elastic component is the first length. When the hinge assembly is in the folded state, the movable part is located in the second position and the length of the elastic component is the second length, which is greater than the first length.

5. The hinge assembly according to claim 4, characterized in that, The first sliding part is simultaneously embedded in the first sub-slot and the third sub-slot, and the first sub-slot and the third sub-slot form at least a portion of the first rotating groove. The second sliding part is simultaneously embedded in the second sub-slot and the fourth sub-slot, and the second sub-slot and the fourth sub-slot form at least a portion of the second rotating groove. The first sliding part contacts the groove wall of the first sub-slot, and the second sliding part contacts the groove wall of the second sub-slot.

6. The hinge assembly according to claim 5, characterized in that, The first sub-groove has a first curved surface on its groove wall, and the first sliding part has a second curved surface. The first curved surface faces the second curved surface, and the first curved surface is in contact with the second curved surface. The second sub-groove has a third curved surface on its groove wall, and the second sliding part has a fourth curved surface. The third curved surface faces the fourth curved surface and is in contact with the fourth curved surface.

7. The hinge assembly according to claim 6, characterized in that, Both the second curved surface and the fourth curved surface have a convex surface and a concave surface, wherein the convex surface and the concave surface are adjacent to each other. When the hinge assembly is in the unfolded state, the first curved surface contacts the protruding surface on the second curved surface, and the third curved surface contacts the protruding surface on the fourth curved surface; when the hinge assembly is in the folded state, the first curved surface contacts the concave surface on the second curved surface, and the third curved surface contacts the concave surface on the fourth curved surface.

8. The hinge assembly according to claim 4, characterized in that, The hinge assembly includes a blocking member, which is fixed in position and spaced apart from the movable part. The blocking member is connected to a sliding rod, which passes through the movable part. An elastic component is sleeved on the sliding rod, and the first end of the elastic component abuts against the blocking member to fix the first end of the elastic component.

9. The hinge assembly according to claim 4, characterized in that, The hinge assembly further includes a hinge cover that covers the fixed base, the first swing arm, and the second swing arm, and the fixing part is fixedly connected to the hinge cover.

10. The hinge assembly according to claim 2, characterized in that, Both the first connecting part and the second connecting part are provided with fixing bosses, and both the first door panel and the second door panel are provided with fixing grooves, and the fixing bosses are embedded in the fixing grooves.

11. An electronic device, characterized in that, The electronic device includes a first housing, a second housing, and a hinge assembly as described in any one of claims 1-10; The first housing is connected to the first door panel, and the second housing is connected to the second door panel. The electronic device has a folded state and an unfolded state. When the electronic device switches from a folded state to an unfolded state, the first housing and the second housing move away from each other, and the first door panel and the second door panel move away from each other; when the electronic device switches from an unfolded state to a folded state, the first housing and the second housing move closer to each other, and the first door panel and the second door panel move closer to each other.

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