Dual-screen electronic device

Abstract

The application discloses a double-screen electronic device, which comprises a main screen, a secondary screen and a linkage assembly connecting the main screen and the secondary screen. The main screen and the secondary screen can be linked through the movement of the linkage assembly, so that the secondary screen can be lifted up along with the unfolding of the main screen, thereby reducing the interaction steps when the user uses the secondary screen and improving the interaction experience of the user when using the double-screen electronic product.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a dual-screen electronic device. Background Art

[0002] In recent years, dual-screen designs have become widely used in electronic products. The secondary screen not only provides a better visual experience but also incorporates touch interaction. However, secondary screen interaction requires separate operation, and the relative position and angle of the primary and secondary screens must be manually adjusted, making secondary screen interaction in existing products cumbersome and providing a poor user experience. Summary of the Invention

[0003] The present application provides a dual-screen electronic device. A main screen and a secondary screen are connected by a hinge device, so that the main screen and the secondary screen can be linked by the movement of a linkage component, so that the secondary screen can be raised as the main screen is unfolded, thereby reducing the number of interaction steps for the user when using the secondary screen and improving the user's interactive experience when using the dual-screen electronic product.

[0004] The present application provides a dual-screen electronic device, comprising a body, a main screen, a sub-screen and a linkage assembly, wherein a first end of the main screen is rotatably connected to the body to close or open relative to the body; the linkage assembly is installed on the body, and the linkage assembly includes a driving gear, an intermediate gear and a driven gear, the driving gear cooperates with the intermediate gear, and the intermediate gear meshes with the driven gear, and the circumference of the driving gear includes a first gear tooth area and a first non-gear tooth area, the first end of the main screen is fixedly connected to the driving gear, the first end of the sub-screen is connected to the driven gear, and the second end of the sub-screen is connected to the body; when the main screen is opened from a closed state to a first angle relative to the body, the first non-gear tooth area of ​​the driving gear cooperates with the intermediate gear, and the driving gear does not drive the intermediate gear to rotate; when the main screen is opened from the first angle to a second angle relative to the body, the first gear tooth area of ​​the driving gear meshes with the intermediate gear, and the driving gear drives the intermediate gear and the driven gear to rotate, so as to drive the first end of the sub-screen to be lifted relative to the body, and the sub-screen is opened relative to the body, wherein the second angle is greater than the first angle.

[0005] In the present application, when the main screen is opened from a first angle to a second angle relative to the body, the first end of the secondary screen is lifted relative to the body so that the secondary screen is opened relative to the body, thereby improving the user's field of view and meeting ergonomic requirements; at the same time, it leaves a larger heat dissipation space for the dual-screen electronic device, so that heat can be dissipated from the gap between the secondary screen and the body, thereby improving the heat dissipation performance and allowing the performance of the thin and light terminal electronic device to be better utilized.

[0006] When the main screen is opened to the second angle relative to the body, the first end of the secondary screen is raised to the highest point. At this time, the secondary screen is opened and raised relative to the body, which improves the user's field of view, meets ergonomic requirements, and facilitates user viewing and operation.

[0007] As the main screen continues to open from the second angle relative to the body, the secondary screen remains stationary relative to the body, and the first end of the secondary screen remains at the highest point. This can ensure that when the user uses a dual-screen electronic device, the secondary screen is always in a state that is convenient for the user to use, thereby improving the user's experience of using the secondary screen. There is no need to manually adjust the opening angle of the secondary screen, reducing the interaction steps, and improving the user's interaction experience when using dual-screen products.

[0008] The dual-screen electronic device provided in this application not only reduces the interaction steps of the secondary screen, but also coordinates the layout between the main screen, secondary screen and keyboard, making it easier for users to accept and improving the experience.

[0009] In a possible implementation, when the main screen continues to open from the second angle relative to the body, the first non-tooth area of ​​the driving gear cooperates with the intermediate gear, and the driving gear does not drive the intermediate gear to rotate.

[0010] In one possible implementation, the linkage assembly also includes a first protrusion and a second protrusion, the first protrusion is fixed to the driving gear and is coaxially arranged with the driving gear, the first protrusion protrudes outward relative to the circumferential side of the driving gear, the second protrusion is fixed to the driven gear and is coaxially arranged with the driven gear, the second protrusion protrudes outward relative to the circumferential side of the intermediate gear, and the second protrusion has a self-locking concave surface. When the main screen continues to open from the second angle relative to the body, the self-locking concave surface contacts and cooperates with the surface of the first protrusion.

[0011] For example, the first protrusion and the driving gear can be connected by plugging or other means. In this case, the driving gear and the first protrusion can be manufactured separately, improving production efficiency and reducing scrap rate. The driving gear and the first protrusion can also be a one-piece structure, manufactured by integral molding to improve structural integrity. The second protrusion and the intermediate gear can also be connected by plugging or other means, or can be a one-piece structure.

[0012] In one possible implementation, the linkage assembly further includes a first protrusion and a second protrusion, the first protrusion is fixed to the driving gear and coaxially arranged with the driving gear, the first protrusion protrudes outward relative to the circumferential side of the driving gear, the second protrusion is fixed to the driven gear and coaxially arranged with the driven gear, the second protrusion protrudes outward relative to the circumferential side of the intermediate gear, the first protrusion includes a first shift block, and the second protrusion includes a second shift block; when the main screen is opened to a second angle relative to the body, the first gear tooth area of ​​the driving gear and the intermediate gear exit the meshing state, and the first shift block and the second shift block are in a meshing state; in the process of the main screen being opened from the second angle to the third angle relative to the body, the first shift block drives the second shift block to rotate a preset angle, and then exits the meshing state with the second shift block, and the third angle is greater than the second angle.

[0013] For example, the driving gear may include a plurality of first gear teeth disposed in a first gear tooth region. The first shift block may be raised relative to the first gear teeth, i.e., the height of the first shift block may be greater than the tooth height of the first gear teeth, to prevent the first gear teeth from interfering with the meshing process of the first shift block and the second shift block, thereby affecting the stability of the gear transmission.

[0014] For example, the lift angle of the secondary screen can be changed by changing the structural parameters of the driving gear. Specifically, while the module of the driving gear remains unchanged, the rotation angle of the intermediate gear and the driven gear can be increased by increasing the number of first gear teeth, thereby increasing the lift angle of the secondary screen. The number of first gear teeth can be designed according to specific needs, such as three, six, seven, etc., and this application does not limit this.

[0015] In one possible implementation, the second convex portion includes a self-locking concave surface, which is arranged on a side of the second shift block close to the driven gear. When the main screen continues to open from a third angle relative to the body, the first non-tooth area of ​​the driving gear cooperates with the intermediate gear, and the self-locking concave surface cooperates with the surface of the first convex portion.

[0016] In this application, when the main screen continues to open relative to the main body at the second angle, the surface of the first protrusion contacts and engages with the self-locking concave surface of the second protrusion, preventing the intermediate gear from rotating counterclockwise under the weight of the secondary screen or the force applied by the user when using the keyboard or secondary screen, ensuring that the first end of the secondary screen remains at the highest point. Furthermore, the second protrusion also provides support for the first protrusion, thereby improving the stability of the driving gear's rotation.

[0017] In a possible implementation, the first shift block has two meshing end points, the driving gear has two meshing end points, and the two meshing end points of the driving gear are located between the two meshing end points of the first shift block in the circumferential direction.

[0018] In this application, when the engagement termination points of the driving gear and the intermediate gear touch, the first and second shift blocks remain engaged. The driving gear continues to rotate, driving the first shift block, which then drives the second shift block, allowing the intermediate gear to continue rotating with the driving gear, leaving ample space for the return engagement of the driving gear and preventing return interference.

[0019] In one possible implementation, the first protrusion is provided with a clearance groove, which allows the second protrusion to clear the way when the main screen is opened from a closed position relative to the body to a first angle. During this process, the non-toothed area of ​​the driving gear engages with the intermediate gear, the intermediate gear and the driven gear remain stationary relative to the body, and the auxiliary screen remains closed relative to the body. The clearance groove of the driving gear prevents interference between the first and second protrusions.

[0020] In one possible implementation, the second angle is less than or equal to 90°. It is understandable that the opening angle of the main screen relative to the body can be adjusted by the user as needed. Generally, when using a dual-screen electronic device, the user will open the main screen within the range of 90° to 135° relative to the body. Therefore, when the main screen is opened to 90° or less than 90° relative to the body, the secondary screen is raised to the highest point. This can ensure that when the user is using the dual-screen electronic device, the secondary screen is opened at an elevated angle relative to the body, thereby improving the user's field of view, meeting ergonomic requirements, and being in a state that is convenient for the user to use, thereby improving the user's experience. At the same time, it leaves more heat dissipation space for the dual-screen electronic device, improving the heat dissipation performance, and allowing the performance of thin and light terminal electronic devices to be better utilized.

[0021] In one possible implementation, the intermediate gear includes a second gear tooth section and a third gear tooth section spaced apart from the second gear tooth section. The second gear tooth section is configured to mesh with the first gear tooth section, and the third gear tooth section is configured to mesh with the driven gear. The intermediate gear may include a plurality of second and third gear teeth fixed to the circumference and spaced apart. The second gear teeth are located in the second gear tooth section, and the third gear teeth are located in the third gear tooth section.

[0022] In this application, when the driving gear meshes with the intermediate gear, the second gear teeth can mesh with the first gear teeth, allowing the driving gear to drive the intermediate gear to rotate, and the third gear teeth can mesh with the gear teeth of the driven gear, allowing the intermediate gear to drive the driven gear to rotate. The intermediate gear and the driven gear remain in meshing state, that is, the driving gear can drive the intermediate gear and the driven gear to rotate simultaneously.

[0023] For example, the module of the driving gear and the module of the driven gear can be the same or different, that is, the module of the second gear tooth section and the module of the third gear tooth section can be the same or different.

[0024] Exemplarily, the intermediate gear may also include a gear tooth section arranged around the circumference, that is, no gap may be provided between the second gear tooth section and the third gear tooth section.

[0025] In a possible implementation, the tooth height of the gear teeth of the driving gear is different from the tooth height of the gear teeth of the intermediate gear.

[0026] In this application, the tooth height of the second gear teeth can be greater than the tooth height of the first gear teeth, leaving sufficient space for the first and second gear teeth to mesh when they enter into engagement. This prevents the first and second gear teeth from deviating from their mating position due to assembly errors or mechanism deformation, resulting in a failure to mesh, thereby improving the fault tolerance of the mechanism. It is understood that the tooth height of the second gear teeth can also be less than the tooth height of the first gear teeth, that is, the tooth height of the first gear teeth and the tooth height of the second gear teeth can be different.

[0027] In one possible implementation, the secondary screen includes a slide groove disposed at a first end of the secondary screen, a linkage assembly is connected to the first end of the secondary screen via the slide groove, and the body includes a rotating shaft, with a second end of the secondary screen rotatably connected to the body via the rotating shaft. When the linkage assembly raises the secondary screen, the first end of the secondary screen can both rotate and slide relative to the linkage assembly.

[0028] In one possible implementation, a slide is provided at the second end of the secondary screen, the second end of the secondary screen being connected to the main body via the slide, and the first end of the secondary screen being rotatably connected to the linkage assembly. Correspondingly, the main body may include a slider corresponding to the slide, the slider being able to slide within the slide and rotate relative to the slide. The second end of the secondary screen may be connected to the main body via the slide, and the second end of the secondary screen may be able to both rotate and slide relative to the main body.

[0029] In a possible implementation, the linkage assembly further includes a connecting rod, one end of which is fixedly connected to the passive gear, and the other end of which extends in a direction away from the gear shaft of the passive gear and is connected to the auxiliary screen.

[0030] In this application, the lifting height of the secondary screen can be increased by driving the connecting rod to lift it. For example, if the module of the passive gear remains unchanged, the lifting height of the secondary screen can be increased by increasing the length of the connecting rod, thereby increasing the angle at which the secondary screen opens relative to the main body. This further improves the user's field of view and meets ergonomic requirements; at the same time, it leaves more room for heat dissipation in dual-screen electronic devices, allowing the performance of thin and light terminal electronic devices to be better utilized.

[0031] In one possible implementation, when the main screen is opened to the second angle relative to the body, the secondary screen is opened 5° to 15° relative to the body. In this application, when the main screen is opened to the second angle relative to the body, the first end of the secondary screen is raised to the highest point. At this time, the secondary screen is opened 5° to 15° relative to the body, which is convenient for the user to use and easy to view and operate.

[0032] In a possible implementation, the linkage assembly further includes a driving shaft and a bracket, the bracket is fixed to the body, the driving shaft is rotatably connected to the bracket, the driving shaft is fixedly connected to the driving gear, and the driving shaft is used to drive the driving gear to rotate.

[0033] In the present application, the bracket may include a first support frame and a second support frame that are arranged opposite to each other and are fixedly mounted in the inner cavity of the housing to support a portion of the structure of the linkage assembly. The driving shaft passes through the first support frame and the second support frame and rotates relative to the first support frame and the second support frame.

[0034] In a possible implementation, the linkage assembly further includes a damping mechanism, which is sleeved on one end of the driving shaft and mounted on the bracket, and is used to provide a damping force during the rotation of the driving shaft relative to the bracket.

[0035] In the present application, the damping mechanism may include a first gasket, an elastic member, a second gasket, and a locking member arranged in sequence, wherein the first gasket is arranged adjacent to the second bearing, and the first and second gaskets are planarly matched with the circumference of the active shaft, so that the linkage assembly can withstand greater torsional forces and prevent slipping. The elastic member can cooperate with the locking member to provide an elastic force that presses the first gasket against the second bearing. When the active shaft rotates relative to the second bearing, friction is generated between the first gasket and the second bearing, thereby providing a damping force for the rotation of the active shaft.

[0036] It is understandable that adjusting the distance between the locking member and the second support can adjust the degree of compression of the elastic member, thereby changing the elastic force of the elastic member and further changing the magnitude of the damping force. The degree of compression of the elastic member can be adjusted according to design requirements.

[0037] In one possible implementation, a portion of the top surface of the body is recessed downward to form a groove. When the main screen is in a closed state relative to the body, the sub-screen is also in a closed state and is housed in the groove.

[0038] In this application, when the dual-screen electronic device is in a closed state, the secondary screen is also in a closed state. At this time, the secondary screen is stored in the groove and is roughly parallel to the top surface of the body.

[0039] In one possible implementation, the dual-screen electronic device also includes a keyboard. When the main screen is closed relative to the body, the keyboard is stored in a groove and stacked above the secondary screen. The keyboard can be detachably connected to the secondary screen, that is, the keyboard can be separated from the secondary screen. When the dual-screen electronic device is in the open state, the user can remove the keyboard to expose the secondary screen to achieve dual-screen mode. At this time, the user can use the main screen and the secondary screen at the same time.

[0040] In one possible implementation, the dual-screen electronic device further includes a touchpad, which is mounted on the body and exposed relative to the top surface of the body. The touchpad is located on a side of the groove away from the main screen and is used to receive and identify user touch commands.

[0041] In this application, the secondary screen can be hidden under the keyboard to avoid affecting the layout of components such as the keyboard and touchpad, so as to continue the user's usage habits and improve the user's acceptance of dual-screen electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1A This is a schematic structural diagram of a dual-screen electronic device provided by an embodiment of the present application when in a closed state;

[0043] Figure 1B yes Figure 1A A schematic diagram of the structure of the dual-screen electronic device shown in the open state;

[0044] Figure 1C yes Figure 1B A schematic diagram of the structure of the dual-screen electronic device shown in the dual-screen mode when it is turned on;

[0045] Figure 2A yes Figure 1B A schematic structural diagram of the dual-screen electronic device shown is when the main screen is opened to a first angle relative to the body;

[0046] Figure 2B yes Figure 1B A schematic structural diagram of the dual-screen electronic device shown when the main screen is opened to a second angle relative to the body;

[0047] Figure 3 yes Figure 1B An exploded schematic diagram of the dual-screen electronic device shown;

[0048] Figure 4 yes Figure 1B An enlarged schematic diagram of the structure at position A is shown;

[0049] Figure 5 yes Figure 1B Schematic diagram of the internal structure shown;

[0050] Figure 6A yes Figure 1B An exploded schematic diagram of the structure of a dual-screen electronic device;

[0051] Figure 6B yes Figure 6A An enlarged schematic diagram of the structure at position B shown in FIG;

[0052] Figure 7 yes Figure 6B a partially exploded schematic diagram of the linkage assembly shown;

[0053] Figure 8 yes Figure 7 A schematic diagram of the structure of the shown part at another angle;

[0054] Figure 9 yes Figure 6B a partially exploded schematic diagram of the structure shown;

[0055] Figure 10 yes Figure 9 An exploded schematic diagram of the structure shown at another angle;

[0056] Figure 11 yes Figure 1A A schematic diagram of the interior of a partial structure of the dual-screen electronic device shown in a closed state;

[0057] Figure 12 yes Figure 10 A schematic diagram of a portion of the structure of the linkage assembly shown;

[0058] Figure 13 yes Figure 10 A schematic diagram of a portion of the structure of the linkage assembly shown;

[0059] Figure 14 yes Figure 13 A schematic diagram of the structure shown at another angle;

[0060] Figure 15 yes Figure 10 A schematic diagram of the structural coordination of part of the linkage assembly shown when the main screen is in a closed state relative to the body;

[0061] Figure 16 Figure 1B A schematic diagram of a partial structure of the dual-screen electronic device shown when the main screen is opened to a first angle from a closed state relative to the body;

[0062] Figure 17 yes Figure 10 A schematic diagram of the structural coordination of part of the linkage assembly when the main screen is in the second open state relative to the body;

[0063] Figure 18 yes Figure 1B A schematic diagram of a portion of the structure of the dual-screen electronic device shown when the main screen is opened to a second angle relative to the body;

[0064] Figure 19 yes Figure 10 Part of the structure of the linkage assembly shown is in the dual-screen electronic device Figure 18 Schematic diagram of the structural coordination in the state shown;

[0065] Figure 20 yes Figure 19 Schematic diagrams of the structure shown in some other implementations;

[0066] Figure 21 yes Figure 1B A schematic diagram of a partial structure of the dual-screen electronic device shown when the main screen is in a third open position relative to the body;

[0067] Figure 22 yes Figure 10 Part of the structure of the linkage assembly shown is in the dual-screen electronic device Figure 21 Schematic diagram of the structural coordination in the shown state. DETAILED DESCRIPTION

[0068] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application. Among them, "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more than two. "Above" includes the number itself, for example, more than two includes two.

[0069] Please also refer to Figure 1A and Figure 1B , Figure 1A 1 is a structural diagram of a dual-screen electronic device 100 provided in an embodiment of the present application when in a closed state. Figure 1B yes Figure 1A The structure diagram of the dual-screen electronic device 100 is shown in the open state.

[0070] Exemplarily, the dual-screen electronic device 100 may include a main screen 1 and a body 2. The first end 11 of the main screen 1 may be rotatably connected to the body 2 to be closed or opened relative to the body 2.

[0071] like Figure 1A As shown, the main screen 1 can be closed relative to the body 2 so that the dual-screen electronic device 100 is in a closed state. At this time, the angle between the main screen 1 and the body 2 can be approximately 0°, and the main screen 1 is in a closed state relative to the body 2. The angle between the main screen 1 and the body 2 is defined as the angle between the light-emitting surface 10 of the main screen 1 and the top surface 20 of the body 2. It can be understood that the directional terms such as "top", "upper", and "lower" involved in this application are descriptions with reference to the orientation of the attached drawings, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application. For example, the main screen 1 and the body 2 can be in contact with each other, or they can be close to each other, and there can be a small gap between the two. This application does not strictly limit this.

[0072] like Figure 1BAs shown, the main screen 1 can be opened relative to the body 2 so that the dual-screen electronic device 100 is in an open state. In the embodiment of the present application, the open state of the dual-screen electronic device 100 is the state when the closed state is released, that is, when the dual-screen electronic device 100 is in the open state, the angle between the main screen 1 and the body 2 is greater than 0° and less than or equal to 180°, for example, 40°, 90°, 135°, 180°, etc. The dual-screen electronic device 100 may also include a keyboard 3 mounted on the body 2. A portion of the top surface 20 of the body 2 may be recessed downward to form a groove 21, which can be used to accommodate the keyboard 3, with the upper portion of the keyboard 3 exposed from the top surface 20. The body 2 may include a touchpad 7. The touchpad 7 is mounted on the body 2 and exposed relative to the top surface 20 of the body 2. The touchpad 7 is located on the side of the groove 21 away from the main screen 1 and is used to receive and recognize user touch commands.

[0073] For example, when the dual-screen electronic device 100 is in the open state, the keyboard 3 can be opened relative to the body 2 so that heat can be dissipated from the gap between the keyboard 3 and the body 2, thereby improving the heat dissipation performance.

[0074] See also Figure 1C , Figure 1C yes Figure 1B The schematic diagram of the structure of the dual-screen electronic device 100 when it is in the dual-screen mode in the open state. Exemplarily, the dual-screen electronic device 100 may further include a sub-screen 4, which may be located below the keyboard 3 and connected to the body 2. The keyboard 3 may be indirectly connected to the body 2 through the sub-screen 4. The keyboard 3 may be detachably connected to the sub-screen 4, that is, the keyboard 3 may be separated from the sub-screen 4. When the dual-screen electronic device 100 is in the open state, the user can remove the keyboard 3 to expose the sub-screen 4 to achieve the dual-screen mode. At this time, the user can use the main screen 1 and the sub-screen 4 at the same time.

[0075] In this application, the dual-screen electronic device 100 has two usage scenarios: when the secondary screen 4 is not needed, the keyboard 3 can be placed on the secondary screen 4 after the main screen 1 is opened to work; when the main screen 1 and the secondary screen 4 need to be used at the same time, the keyboard 3 can be removed and placed on the desktop to work, and the dual-screen mode can be switched at any time.

[0076] Please also refer to Figure 1A 、 Figure 1B and Figure 1C For example, when the dual-screen electronic device 100 is in the open state, the first end 41 of the secondary screen 4 can be lifted relative to the body so that the secondary screen 4 is opened relative to the body 2, and the keyboard 3 can be lifted as the secondary screen 4 is lifted.

[0077] When the dual-screen electronic device 100 is in a closed state, the secondary screen 4 is correspondingly in a closed state. At this time, the keyboard 3 is stored in the groove 21, and the secondary screen 4 is stored under the keyboard 3, that is, the secondary screen 4 is stored in the groove 21 and is roughly parallel to the top surface 20 of the body 2. In this embodiment, the secondary screen 4 can be hidden under the keyboard 3, coordinating the layout between the main screen 1, the secondary screen 4 and the keyboard 3, avoiding affecting the position arrangement of components such as the keyboard 3 and the touchpad 7, so as to continue the user's usage habits and improve the user's acceptance of the dual-screen electronic device 100. In addition, hiding the secondary screen 4 under the keyboard 3 will not change the position of the original keyboard 3, nor will it compress the size of the keyboard 3, and the wrist rest is retained to ensure the user's typing experience. The present application adopts a physical keyboard to ensure the feel when typing.

[0078] In this application, the interaction steps of the secondary screen 4 are reduced, and the layout between the main screen 1, the secondary screen 4 and the keyboard 3 is coordinated, making it easier for users to accept and improving the experience.

[0079] For example, the keyboard 3 and the sub-screen 4 can be connected by magnetic adsorption or by surface matching to prevent the keyboard 3 from sliding downward relative to the sub-screen 4 due to the lifting of the sub-screen 4.

[0080] For example, the secondary screen 4 can integrate display and touch functions. The secondary screen 4 can display images and also recognize user touch operations. The user can input commands by touching the light-emitting surface of the secondary screen 4. In this application, the light-emitting surface of the secondary screen 4 is the side of the secondary screen 4 that can display images.

[0081] For example, the keyboard 3 can be connected to the body via wireless communication. When the keyboard 3 is separated from the body 2, the user can still use the keyboard 3 and input commands through the keyboard 3. Therefore, when the dual-screen electronic device 100 is in dual-screen mode, the user can input commands by tapping the keyboard 3 or by touching the light-emitting surface of the secondary screen 4, thereby increasing the number of operable points and improving operational flexibility. It is understandable that the secondary screen 4 may not have a touch function, that is, the secondary screen 4 may not be able to recognize the user's touch operation.

[0082] In some other embodiments, the keyboard 3 and the secondary screen 4 can also be integrated into a modular structure. For example, the dual-screen electronic device 100 can include a secondary screen assembly (not shown), which includes a key area and a display area arranged in opposite directions. The key area is used to receive input commands to realize the keyboard function, and the display area is used to display images to realize the secondary screen function. The modular secondary screen assembly can reduce the size of the dual-screen electronic device 100, meeting the requirements of miniaturization and lightness.

[0083] Exemplarily, the dual-screen electronic device 100 may include a motion bracket (not shown) connecting the body 2 and the sub-screen assembly. The motion bracket can rotate relative to the body 2 to drive the sub-screen assembly to open relative to the body 2. Exemplarily, the motion bracket can be a plate-like structure supported under the sub-screen assembly, or a frame-like structure surrounding the periphery of the sub-screen assembly. The sub-screen assembly can be detachably connected to the motion bracket, and the user can separate the sub-screen assembly from the bracket and flip the sub-screen assembly to switch between the key area and the display area.

[0084] Please also refer to Figure 2A and Figure 2B , Figure 2A yes Figure 1B The structure diagram of the dual-screen electronic device 100 is shown as follows: Figure 2B yes Figure 1B The diagram shows the structure of the dual-screen electronic device 100 when the main screen is opened to a second angle relative to the body.

[0085] For example, the main screen 1 is relative to the body 2 as shown in FIG. Figure 1A The closed state shown is opened to Figure 2A During the process of the first angle α1 shown, the main screen 1 is in the first open state, and the secondary screen 4 (hidden under the keyboard 3) remains stationary relative to the body 2.

[0086] In this embodiment, after the main screen 1 is opened to the first angle α1 relative to the body 2, the secondary screen 4 is opened relative to the body, leaving sufficient space for the secondary screen 4 to be lifted, thereby preventing the secondary screen 4 from colliding with the main screen 1 during the lifting process.

[0087] In this embodiment, when the main screen 1 is opened relative to the body 2 from the first angle α1 to the second angle α2, the main screen 1 is in the second open state, and the first end 41 of the secondary screen 4 is raised relative to the body 2, so that the secondary screen 4 is opened relative to the body 2. The first angle α1 is smaller than the second angle α2.

[0088] When the main screen 1 is opened to the second angle α2 relative to the body 2, the first end 41 of the sub-screen 4 is lifted to the highest point. At this time, the sub-screen 4 is opened to the lifting angle β relative to the body 2 and is in a state convenient for users to use. That is, the sub-screen 4 is lifted by a certain angle relative to the body 2, which improves the user's field of view, meets ergonomic requirements, and is convenient for users to watch and operate. At the same time, it leaves a larger heat dissipation space for the dual-screen electronic device 100, so that the performance of the thin and light terminal electronic device can be better exerted.

[0089] For example, the lifting angle β can be in the range of 5° to 15°. It is understandable that the lifting angle β can be designed according to specific requirements to ensure that the lifting angle of the secondary screen 4 meets the user's usage habits.

[0090] During the process of the main screen 1 continuing to open from the second angle α2 relative to the body 2, the main screen 1 is in the third opening state, the sub-screen 4 remains stationary relative to the body 2, and the first end 41 of the sub-screen 4 remains at the highest point, which can ensure that when the user is using the dual-screen electronic device 100, that is, when the angle of the main screen 1 opened relative to the body 2 is greater than 90°, the sub-screen 4 is always in a state that is convenient for the user to use, thereby improving the user's experience of using the sub-screen 4. There is no need to manually adjust the opening angle of the sub-screen 4, reducing the interaction steps, and improving the user's interaction experience when using the dual-screen product.

[0091] Exemplarily, the first angle α1 may be greater than or equal to the collision angle. In this embodiment, when the first end 41 of the secondary screen 4 is raised to the highest point, at this time, if the main screen 1 and the secondary screen 4 are in contact with the highest point relative to the body 2, then the angle at which the main screen 1 is opened relative to the body 2 is the collision angle (not shown). Exemplarily, the collision angle may be 35°, and the first angle α1 may be 35°, 40°, etc. Understandably, the first angle α1 may also be designed according to the specific size of the dual-screen electronic device 100, and this embodiment does not limit this.

[0092] Exemplarily, the second angle α2 can be greater than the first angle α1 and less than or equal to 90°, such as 70°, 89°, etc. Understandably, the opening angle of the main screen 1 relative to the body 2 can be adjusted by the user as needed. Generally, when using the dual-screen electronic device 100, the user will open the main screen 1 within the range of 90° to 135° relative to the body. Therefore, when the main screen 1 is opened to 90° or less than 90° relative to the body 2, the secondary screen 4 is raised to the highest point, which can ensure that when the user uses the dual-screen electronic device 100, the secondary screen 4 is opened to the lifting angle β relative to the body 2, which is in a state that is convenient for the user to use, thereby improving the user experience.

[0093] It can be understood that the process of closing the main screen 1 relative to the body 2 from the open state is opposite to the process of opening the main screen 1 relative to the body 2 from the closed state.

[0094] Illustratively, during the process of the main screen 1 closing from the third open state to the main screen 1 opening relative to the body 2 at an angle equal to the second angle α2, the secondary screen 4 remains stationary relative to the body 2, and the first end 41 of the secondary screen 4 is at the highest point.

[0095] During the process of the main screen 1 closing from the second open state to the angle where the main screen 1 is opened relative to the body 2 being equal to the first angle α1, as the main screen 1 closes relative to the body 2, the first end 41 of the auxiliary screen 4 descends relative to the body, that is, the auxiliary screen 4 closes relative to the body 2.

[0096] When the main screen is in the first open state, the first end 41 of the secondary screen 4 drops to the lowest point relative to the body 2, that is, the secondary screen 4 returns to the closed state. When the main screen 1 is closed relative to the body 2 from the first open state, the secondary screen 4 remains stationary relative to the body 2, that is, the secondary screen 4 is in the closed state.

[0097] See also Figure 3 , Figure 3 yes Figure 1B The figure shows an exploded schematic diagram of a dual-screen electronic device 100. The body 2 includes a casing 23 and a cover 24 mounted on the upper side of the casing. The casing 23 and cover 24 together enclose an internal cavity. A recess 21 is located at the end of the cover 24 near the main screen 1. When the dual-screen electronic device 100 is open, the keyboard 3 and secondary screen 4 are open relative to the body 2, exposing the cover 24 through the opening of the recess 21.

[0098] The dual-screen electronic device 100 may further include a linkage assembly 5 mounted on the body 2. Figure 3 and Figure 4 , Figure 4 yes Figure 1B An enlarged schematic diagram of the structure at point A is shown. Exemplarily, the first end 11 of the main screen 1 can be rotatably connected to the body 2 through the linkage component 5. The first end 41 of the sub-screen 4 can be connected to the linkage component 5 and lifted relative to the body 2 under the drive of the linkage component 5. The linkage component 5 can move to rotate the main screen 1 relative to the body 2. The linkage component 5 can also move to link the main screen 1 and the sub-screen 4. In the process of opening the main screen 1 relative to the body 2, the first end 41 of the sub-screen 4 is driven to lift relative to the body 2, so that the sub-screen 4 is opened relative to the body 2, thereby reducing the user's interaction steps when using the sub-screen 4 and improving the user experience.

[0099] Please also refer to Figure 3 and Figure 5 , Figure 5 yes Figure 1B Schematic diagram of the internal structure is shown. For example, the second end 42 of the secondary screen 4 can be connected to the body 2. The secondary screen 4 may include a slide groove 43 provided at the first end 41 of the secondary screen 4, and one end of the linkage component 5 can slide in the slide groove 43. In the process of the linkage component 5 lifting the secondary screen 4, the first end 41 of the secondary screen 4 can both rotate relative to the linkage component 5 and slide relative to the linkage component 5. In this embodiment, the dual-screen electronic device 100 may include a rotating shaft 6, which is installed on the body 2. The second end 42 of the secondary screen 4 can be rotatably connected to the body 2 through the rotating shaft 6.

[0100] In some other embodiments, the slide groove 43 may also be provided at the second end 42 of the auxiliary screen 4. Correspondingly, the body 2 may include a slider (not shown) provided corresponding to the slide groove 43. The slider can slide in the slide groove 43 and can also rotate relative to the slide groove 43. The second end 42 of the auxiliary screen 4 can be connected to the body 2 through the slide groove 43. The second end 42 of the auxiliary screen 4 can both rotate relative to the body 2 and slide relative to the body 2. In this embodiment, the first end 41 of the auxiliary screen 4 can be rotatably connected to the linkage assembly 5. Understandably, the slider can also be provided on the side of the second end 42 of the auxiliary screen 4, and the slide groove 43 can also be provided on the body 2. This application does not limit this.

[0101] Please also refer to Figure 1B and Figure 5 For example, the second end 42 of the secondary screen 4 close to the side of the body 2 can be a curved structure. When the secondary screen 4 is opened relative to the body 2, the first end 41 of the secondary screen 4 is raised relative to the top surface 20 of the body 2, and the second end 42 is lowered relative to the top surface 20 of the body 2. Designing the side of the second end 42 close to the body as a curved surface can prevent the second end 42 from interfering with the top surface 20 during movement. It is understandable that the second end 42 of the secondary screen 4 can also adopt other structures, and this application is not limited to this.

[0102] See also Figure 6A , Figure 6A yes Figure 1B The schematic diagram of the exploded structure of the dual-screen electronic device 100 is shown. For example, the linkage assembly 5 may include a connector 501 and a bracket 502 , wherein the linkage assembly 5 is fixedly connected to the main screen 1 via the connector 501 and is fixedly connected to the housing 23 via the bracket 502 .

[0103] See also Figure 6B , Figure 6B yes Figure 6A In the enlarged schematic diagram of the structure at point B shown in the figure, the connecting member 501 may include a first end 5011 and a second end 5012 that are fixedly connected, and the first end 5011 and the second end 5012 are roughly L-shaped, and the first end 5011 is fixedly connected to the first end 11 of the main screen 1. The first end 5011 may be a plate-like structure, which can increase the contact area with the main screen 1 and improve the firmness of the connection. The linkage assembly 5 may also include a driving shaft 503, and the second end 5012 is fixedly connected to the driving shaft 503. In the process of opening the main screen 1 relative to the body 2, the main screen 1 drives the driving shaft 503 to rotate through the connecting member 501. The angle of rotation of the driving shaft 503 is the angle at which the main screen 1 rotates relative to the body 2.

[0104] For example, the bracket 502 may include a first support frame 5021 and a second support frame 5022 that are disposed opposite each other and are fixedly mounted within the inner cavity of the housing 23 to support a portion of the structure of the linkage assembly 5. The driving shaft 503 is rotatably connected to the bracket 502. The driving shaft 503 passes through the first support frame 5021 and the second support frame 5022 and rotates relative to the first support frame 5021 and the second support frame 5022.

[0105] Exemplarily, the linkage assembly 5 may further include a damping mechanism 504, which is sleeved on one end of the driving shaft 503 located outside the second support frame 5022 and installed on the second support frame 5022 of the bracket 502, for providing damping force during the rotation of the driving shaft 503 relative to the bracket 502.

[0106] See also Figure 7 , Figure 7 yes Figure 6B A partially exploded schematic diagram of the linkage assembly 5 is shown. For example, a protrusion 5031 is provided at one end of the driving shaft 503, near the first support 5021. A through-hole 5010 is provided at the second end 5012 of the connector 501. The protrusion 5031 and through-hole 5010 are shaped to match each other and are fixedly connected. The protrusion 5031 can be fixedly connected to the through-hole 5010 by welding or other means.

[0107] Please also refer to Figure 6B and Figure 7 In this embodiment, the protrusion 5031 of the active shaft 503 is a flat structure and has relatively arranged planes. The shape of the through hole 5010 of the second end 5012 is also approximately a square hole, that is, the protrusion 5031 and the through hole 5010 are matched with each other in a plane, which can effectively prevent the active shaft 503 from rotating relative to the through hole 5010, so that the linkage component 5 can withstand greater torsional force and prevent slipping, thereby preventing the main screen 1 from rotating relative to the body 2 under the action of its own weight, so that the main screen 1 can maintain the angle opened by the user relative to the body 2.

[0108] See also Figure 7 For example, the driving shaft 503 may include a first limiting member 5032 , which is disposed at the bottom of the protrusion 5031 to limit the assembly position of the protrusion 5031 and the connecting member 501 in the axial direction of the driving shaft 503 .

[0109] Exemplarily, the damping mechanism 504 may include a first gasket 5041, an elastic member 5042, a second gasket 5043, and a locking member 5044, which are arranged in sequence. The first gasket 5041 is arranged near the second support frame 5022, and the first gasket 5041 and the second gasket 5043 are planarly matched with the circumference of the driving shaft 503, so that the linkage assembly 5 can withstand greater torsional forces and prevent slipping. The elastic member 5042 can cooperate with the locking member 5044 to provide an elastic force that presses the first gasket 5041 against the second support frame 5022. When the driving shaft 503 rotates relative to the second support frame 5022, friction is generated between the first gasket 5041 and the second support frame 5022, thereby providing a damping force for the rotation of the driving shaft 503.

[0110] It is understandable that adjusting the distance between the locking member 5044 and the second support 5022 can adjust the compression degree of the elastic member 5042, thereby changing the elastic force of the elastic member 5042 and further changing the damping force. Figure 6B and Figure 7 Specifically, the greater the degree of compression of the elastic member 5042, the greater the damping force, preventing the driving shaft 503 from rotating under the weight of the main screen 1, allowing the main screen 1 to maintain the angle desired by the user. Correspondingly, the less the degree of compression of the elastic member 5042, the smaller the damping force, allowing the user to change the angle of the main screen 1 relative to the body 2 with less force. The degree of compression of the elastic member 5042 can be adjusted according to design requirements.

[0111] Exemplarily, the elastic member 5042 may be a spring or other structure capable of elastic deformation; the elastic member 5042 may be made of metal material or elastic material such as rubber, which is not limited in the embodiment of the present application.

[0112] See also Figure 8 , Figure 8 yes Figure 7 A schematic diagram of the structure of the partial structure shown at another angle. For example, the driving shaft 503 may include a second limiting member 5033 fixed to the circumferential side. The second limiting member 5033 protrudes outward relative to the circumferential side of the driving shaft 503. The area on the circumferential side of the driving shaft 503 where the second limiting member 5033 is not provided forms a limiting groove 5034 relative to the second limiting member 5033, and the limiting groove 5034 has a central angle. When the driving shaft 503 and the first support frame 5021 are in an assembled state, the second limiting member 5033 fits the outer side surface of the first support frame 5021 facing away from the second support frame 5022, and the first support frame 5021 may include a limiting protrusion 5023 provided on the outer side surface.

[0113] Please also refer to Figure 6B and Figure 8The limiting protrusion 5023 is used to cooperate with the limiting groove 5034 to limit the rotation angle of the driving shaft 503, and further limit the maximum angle of the main screen 1 relative to the body 2. For example, the central angle of the limiting groove 5034 can be in the range of 90° to 180°, such as 135°, 150°, 180°, etc. The central angle of the limiting groove 5034 corresponds to the maximum angle that the main screen 1 can be opened relative to the body 2, and can be designed according to the needs and usage requirements.

[0114] See also Figure 9 , Figure 9 yes Figure 6B A partially exploded schematic diagram of the structure shown. Exemplarily, the linkage assembly 5 may include a driving gear 51, an intermediate gear 52, and a driven gear 53, mounted between a first support frame 5021 and a second support frame 5022. The driving gear 51 is sleeved on the driving shaft 503 and rotates coaxially with the driving shaft 503. The driving gear 51 can cooperate with the intermediate gear 52 to drive the intermediate gear 52 to rotate. The intermediate gear 52 can mesh with the driven gear 53, driving the driven gear 53 to rotate as the driving gear 51 rotates.

[0115] See also Figure 10 , Figure 10 yes Figure 9 The exploded view of the structure shown is from another angle. For example, the shaft hole of the driving gear 51 is approximately square, and the driving shaft 503 has a relatively flat surface to match the shape of the shaft hole. When these two surfaces are aligned, they can effectively prevent the driving gear 51 from rotating relative to the driving shaft 503, allowing the linkage assembly 5 to withstand greater torsional forces and prevent slipping.

[0116] Please also refer to Figure 10 and Figure 5 For example, the linkage assembly 5 may include a connecting rod 531. One end of the connecting rod 531 is fixedly connected to the passive gear 53, and the other end extends in a direction away from the gear shaft 532 of the passive gear 53 and is connected to the auxiliary screen 4. In this embodiment, the rotation of the passive gear 53 can drive the connecting rod 531 to lift relative to the body 2, thereby driving the first end 41 of the auxiliary screen 4 to lift relative to the body, so that the auxiliary screen 4 is opened relative to the body 2. By driving the auxiliary screen 4 to lift by the connecting rod 531, the lifting height can be increased. For example, in this embodiment, when the module of the passive gear 53 remains unchanged, the lifting height of the auxiliary screen 4 can be increased by increasing the length of the connecting rod 531, thereby increasing the opening angle of the auxiliary screen 4 relative to the body 2. This further improves the user's field of view and meets ergonomic requirements; at the same time, it leaves more heat dissipation space for the dual-screen electronic device 100, so that the performance of the thin and light terminal electronic device can be better exerted.

[0117] For example, the connecting rod 531 may extend in a curved manner and have an inflection point 5310. The connecting rod 531 may include a first section 5311 and a second section 5312, wherein the first section 5311 is the portion of the connecting rod 531 extending outward from the inflection point 5310, and the second section 5312 is the portion of the connecting rod 531 extending from the driven gear 53 to the inflection point 5310. In other embodiments, the connecting rod 531 may extend in a straight line, as long as the extending trend of the connecting rod 531 is away from the gear shaft 532.

[0118] Please also refer to Figure 10 and Figure 11 , Figure 11 yes Figure 1A The figure shows an internal schematic diagram of a partial structure of the dual-screen electronic device 100 when it is in a closed state. When the dual-screen electronic device 100 is in a closed state, the secondary screen 4 is accommodated in the groove 21 of the housing 23, and the end face of the first end 41 of the secondary screen 4 is in contact with the groove wall of the groove 21, and a small gap may exist between the two. Exemplarily, the connecting rod is bent at the end face corresponding to the first end 41 of the secondary screen 4, that is, the inflection point 5310 of the connecting rod 531 corresponds to the position of the end face of the first end 41 of the secondary screen 4, so as to avoid the lifting of the second section 5312 of the connecting rod 531 being restricted by the cover plate 24 around the groove 21, so that the connecting rod 531 can have the maximum lifting space.

[0119] For example, in this embodiment, the angle between the first section 5311 and the second section 5312 can increase the height of the secondary screen 4. While maintaining the same gear module, the angle between the first section 5311 and the second section 5312 can be increased to increase the height of the secondary screen 4, thereby increasing the angle at which the secondary screen 4 is opened relative to the body 2. This further improves the user's field of view, meeting ergonomic requirements; it also provides more room for heat dissipation in the dual-screen electronic device 100, enabling the performance of thin and lightweight terminal electronic devices to be further enhanced.

[0120] For example, the connecting rod 531 can be fixed to the circumference of the passive gear 53, or the connecting rod 531 can be fixed to the gear shaft 532 of the passive gear 53. The circumference of the passive gear 53 can include a gear tooth area and a non-gear tooth area. The connecting rod 531 can be fixed to the non-gear tooth area of ​​the circumference of the passive gear. In other embodiments, the circumference of the passive gear 53 can also include no non-gear tooth area, that is, the circumference of the passive gear 53 is provided with evenly spaced gear teeth.

[0121] Please also refer to Figure 10 and Figure 4The connecting rod 531 may further include a sleeve 5313, which is sleeved on the end of the connecting rod 531 away from the driven gear 53. The sleeve 5313 can rotate relative to the end of the connecting rod 531. The sleeve 5313 can cooperate with the slide groove 43 to drive the connecting rod 531 to slide relative to the slide groove 43. The connecting rod 531 can also rotate relative to the slide groove 43 through the sleeve 5313, so that the first end 41 of the auxiliary screen 4 can rotate and slide relative to the connecting rod 531.

[0122] See also Figure 12 , Figure 12 yes Figure 10 A schematic diagram of a portion of the linkage assembly 5 is shown. For example, the peripheral side of the driving gear 51 may include a first gear tooth region 511 and a first non-gear tooth region 512. The driving gear 51 may include a plurality of first gear teeth 5110 fixed to the peripheral side and arranged in intervals. The first gear teeth 5110 are located in the first gear tooth region 511.

[0123] Exemplarily, the linkage assembly 5 may further include a first protrusion 54. The first protrusion 54 is fixed to the driving gear 51 and is coaxially arranged with the main shaft gear 51. The first protrusion 54 protrudes outward relative to the driving gear 51. The first protrusion 54 and the driving gear 51 can be assembled and connected by plugging or other means. In this case, the driving gear 51 and the first protrusion 54 can be manufactured separately to improve production efficiency and reduce scrap rate. The driving gear 51 and the first protrusion 54 can also be an integrated structure, and the two are manufactured by integral molding to improve structural integrity.

[0124] For example, the first protrusion 54 may include a first shifting block 541 and an avoidance groove 542. The first shifting block 541 may be disposed corresponding to the first gear tooth section 511, and the avoidance groove 542 is disposed between the first shifting block 541 and the first gear tooth section 511.

[0125] See also Figure 13 , Figure 13 yes Figure 10 A schematic diagram of a partial structure of the linkage assembly 5 is shown. For example, the circumference of the intermediate gear 52 may include a second gear tooth section 521 and a third gear tooth section 522 spaced apart. The intermediate gear 52 may include a plurality of second gear teeth 5210 and third gear teeth 5220 fixed to the circumference and spaced apart. The second gear teeth 5210 are located in the second gear tooth section 521, and the third gear teeth 5220 are located in the third gear tooth section 522.

[0126] Please also refer to Figure 10 and Figure 13When the driving gear 51 is meshed with the intermediate gear 52, the second gear teeth 5210 can mesh with the first gear teeth 5110, allowing the driving gear 51 to drive the intermediate gear 52 to rotate. The third gear teeth 5220 can mesh with the gear teeth 530 of the driven gear 53, allowing the intermediate gear 52 to drive the driven gear 53 to rotate. In this embodiment, the intermediate gear 52 and the driven gear 53 remain in meshing state, that is, the driving gear 51 can simultaneously drive the intermediate gear 52 and the driven gear 53 to rotate.

[0127] For example, the module of the driving gear 51 and the module of the driven gear 53 can be the same or different. That is, the module of the second gear tooth section 521 and the module of the third gear tooth section 522 can be the same or different.

[0128] For example, the intermediate gear 52 may also include gear tooth areas arranged around the circumference, that is, no gap may be provided between the second gear tooth area 521 and the third gear tooth area 522 .

[0129] Please also refer to Figure 5 and Figure 10 In this embodiment, when the first non-toothed area 512 of the driving gear 51 cooperates with the intermediate gear 52, the intermediate gear 52 and the driven gear 53 do not rotate with the rotation of the driving gear 51, that is, the intermediate gear 52 and the driven gear 53 are stationary relative to the body 2; when the first toothed area 511 of the driving gear 51 and the intermediate gear 52 are meshed, that is, when the first gear area 511 and the second gear area 521 are meshed, the driving gear 51 can drive the intermediate gear 52 and the driven gear 53 to rotate, thereby driving the first end 41 of the auxiliary screen 4 to be lifted relative to the body 2, so that the auxiliary screen 4 is opened relative to the body 2.

[0130] For example, the lifting angle of the auxiliary screen 4 can be changed by changing the structural parameters of the driving gear 51. Specifically, while the module of the driving gear 51 remains unchanged, the rotation angles of the intermediate gear 52 and the driven gear 53 can be increased by increasing the number of first gear teeth 5110, thereby increasing the lifting angle of the auxiliary screen 4. The number of first gear teeth 5110 can be designed according to specific needs, for example, three, six, seven, etc., and this embodiment of the present application is not limited to this.

[0131] Exemplarily, the plurality of first gear teeth 5110 may include first end gear teeth and second end gear teeth respectively located at both ends. During the process of opening the main screen 1 relative to the body 2, the driving gear 51 may exit the meshing from the first end gear teeth. It is understandable that the process of closing the main screen 1 relative to the body 2 is opposite to the opening process, that is, during the process of closing the main screen 1 relative to the body 2, the driving gear 51 may exit the meshing from the second end gear teeth. Therefore, the driving gear 51 may have two meshing end points, which are respectively arranged at the first end gear teeth and the second end gear teeth. Correspondingly, the first shift block 541 also has two meshing end points. The two meshing end points of the driving gear 51 may be located between the two meshing end points of the first shift block 541 in the circumferential direction.

[0132] Please also refer to Figure 9 、 Figure 12 and Figure 13 Therefore, when the meshing termination points of the driving gear 51 and the intermediate gear 52 touch, the first shift block 541 and the second shift block 542 remain in meshing. The driving gear 51 continues to rotate, driving the first shift block 541, which then drives the second shift block 542, allowing the intermediate gear 52 to continue rotating along with the driving gear 51. This increases the spacing between the first gear teeth 5110 and the second gear teeth 5210, leaving ample space for the return engagement of the driving gear 51 and preventing return interference.

[0133] For example, there may be multiple first shift blocks 541, spaced apart, for example, two. The multiple first shift blocks 541 include a first end shift block and a second end shift block. The first end shift block and the second end shift block are respectively located at both ends of the multiple shift cams 541 and are respectively arranged corresponding to the first end gear teeth and the second end gear teeth. The two engagement end points of the first shift block 541 are respectively set at the first end shift cam and the second end shift cam.

[0134] Exemplarily, the first shift block 541 may protrude relative to the first gear tooth 5110, that is, the height of the first shift block 541 may be greater than the tooth height of the first gear tooth 5110, so as to avoid interference from the first gear tooth 5110 during the meshing process between the first shift block 541 and the second shift block 542, thereby affecting the stability of the gear transmission.

[0135] For example, the tooth height of the second gear teeth 5210 can be greater than the tooth height of the first gear teeth 5110, leaving sufficient space for the first gear teeth 5110 and the second gear teeth 5210 to mesh together, thereby preventing the first gear teeth 5110 and the second gear teeth 5210 from deviating from their mating position due to assembly errors or structural deformation, resulting in a failure to mesh, thereby improving the fault tolerance of the mechanism. It is understood that the tooth height of the second gear teeth 5210 can also be less than the tooth height of the first gear teeth 5110. Therefore, the tooth height of the first gear teeth 5110 and the tooth height of the second gear teeth 5210 can be different, that is, the tooth height of the gear teeth of the driving gear 51 is different from the tooth height of the gear teeth of the intermediate gear 52.

[0136] See also Figure 14 , Figure 14 yes Figure 13 The structure is shown in a schematic diagram from another angle. For example, the linkage mechanism 5 may further include a second protrusion 55, which is fixed to the intermediate gear 52 and coaxially disposed therewith. The second protrusion 55 protrudes outward relative to the intermediate gear 52. The second protrusion 55 may include a second shifting block 551 and a self-locking concave surface 552. The second shifting block 551 is disposed corresponding to the second gear tooth section 521, and the self-locking concave surface 552 is disposed between the second shifting block 551 and the second gear tooth section 521.

[0137] For example, the second protrusion 55 and the intermediate gear 52 can be connected by plugging or other means. In this case, the intermediate gear 52 and the second protrusion 55 can be manufactured separately, which improves production efficiency and reduces scrap rate. The intermediate gear 52 and the second protrusion 55 can also be a one-piece structure, manufactured by integral molding to improve structural integrity.

[0138] See also Figure 15 , Figure 15 yes Figure 10 The diagram shows the partial structure of the linkage assembly 5 when the main screen 1 is closed relative to the body 2. When the main screen 1 is closed relative to the body 2, the driving gear 51, the intermediate gear 52, and the driven gear 53 are in their initial state. At this point, the first non-toothed area 512 of the driving gear 51 engages with the intermediate gear 52, and the avoidance groove 542 and the second protrusion 55 engage. The intermediate gear 52 and the driven gear 53 are in meshing.

[0139] For example, please refer to Figure 1A 、 Figure 2A and Figure 15When the main screen 2 opens relative to the main body 1 from a closed position, the driving gear 51 rotates counterclockwise. In other embodiments, the driving gear 51 may also rotate clockwise, which is not strictly limited in this application. During the counterclockwise rotation of the driving gear 51, the intermediate gear 52 and the driven gear 53 remain stationary relative to the main body 2. The avoidance groove 542 of the driving gear 51 prevents interference between the first protrusion 54 and the second protrusion 55.

[0140] When the main screen 1 is opened from a closed state to a first angle α1 relative to the body 2, the non-tooth area 512 of the driving gear 51 cooperates with the intermediate gear 52, the intermediate gear 52 and the driven gear 53 are stationary relative to the body 2, and the auxiliary screen 4 is in a closed state relative to the body 2.

[0141] Please also refer to Figure 2A 、 Figure 15 and Figure 16 , Figure 16 Figure 1B The diagram shows a partial structure of the dual-screen electronic device 100 when the main screen 1 is opened from a closed state to a first angle α1 relative to the body 2 .

[0142] When the main screen 1 is opened by a first angle α1 relative to the body 2 from the closed state, the main screen 1 is in a first open state relative to the body 2. For example, when the main screen 1 is opened by the first angle α1 relative to the body 2 from the closed state, the driving gear 51 rotates counterclockwise by the first angle α1 from the initial state, and the first gear teeth 5110 of the driving gear 51 contact the second gear teeth 5210 of the intermediate gear 52 as the driving gear 51 rotates.

[0143] Please also refer to Figure 17 and Figure 18 , Figure 17 yes Figure 10 The schematic diagram of the structure coordination of the partial structure of the linkage assembly 5 when the main screen 1 is in the second open state relative to the body 2 is shown. Figure 18 yes Figure 1B The diagram shows a partial structure of the dual-screen electronic device 100 when the main screen 1 is opened to a second angle α2 relative to the body 2 .

[0144] As the main screen 1 continues to open relative to the body 2 from the first angle α1 to the second angle α2, the main screen 1 is in the second open state relative to the body 2. The driving gear 51 continues to rotate counterclockwise as the main screen 1 opens, and the first gear teeth 5110 and the second gear teeth 5210 begin to engage. The driving gear 51 can drive the intermediate gear 52 and the driven gear 53 to rotate, thereby driving the first end 41 of the auxiliary screen 4 to rise relative to the body 2, thereby opening the auxiliary screen 4 relative to the body 2. The intermediate gear 52 rotates clockwise, driving the driven gear 53 to rotate counterclockwise.

[0145] Please also refer to Figure 3 、 Figure 18 and Figure 19 , Figure 19 yes Figure 10 The partial structure of the linkage component 5 shown is in the dual-screen electronic device 100 Figure 18 Schematic diagram of the structural coordination in the state shown. For example, when the main screen 1 is opened from the closed state to the second angle α2 relative to the body 2, and the driving gear 51 is rotated counterclockwise from the initial state to the second angle α2, the first gear teeth 5110 of the driving gear 51 and the second gear teeth 5210 of the intermediate gear 52 just exit the meshing state, that is, the meshing end point 5111 of the first gear teeth 5110 contacts the meshing end point 5211 of the second gear teeth 5210. At this time, the first end 41 of the auxiliary screen 4 is raised to the highest point relative to the body 2.

[0146] Please also refer to Figure 16 and Figure 19 In addition, when the main screen 1 continues to open from the first angle α1 to the second angle α2 relative to the body 2, the self-locking concave surface 552 of the second protrusion 55 rotates clockwise with the intermediate gear 52. When the main screen 1 is opened from the closed state to the second angle α2 relative to the body 2, the self-locking concave surface 552 of the second protrusion 55 fits the surface of the first protrusion 54. When the main screen 1 continues to open from the second angle α2 relative to the body 2, the surface of the first protrusion 54 contacts and cooperates with the self-locking concave surface 552 of the second protrusion 55 to prevent the intermediate gear 52 from rotating, that is, rotating counterclockwise under the weight of the auxiliary screen 4 or the force applied by the user when using the keyboard 3 or the auxiliary screen 4, ensuring that the first end 41 of the auxiliary screen 4 remains at the highest point. In addition, the second protrusion 55 can also provide support for the first protrusion 54 to improve the stability of the rotation of the driving gear 51.

[0147] Please also refer to Figure 18 and Figure 20 , Figure 20 yes Figure 19 Schematic diagram of the structure shown in some other implementations. In some other embodiments, when the main screen 1 is opened from the closed state to the second angle α2 relative to the body 2, the first gear teeth 5110 of the driving gear 51 and the second gear teeth 5210 of the intermediate gear 52 are just out of engagement. At this time, the second shift block 551 can be in engagement with the first shift block 541.

[0148] When the main screen 1 is opened relative to the body 2 from the second angle α2 to the third angle (not shown), as the driving gear 51 rotates, the first shifter 541 shifts the second shifter 542, thereby driving the intermediate gear 52 and the driven gear 53 to continue rotating. After the first shifter 541 rotates the second shifter 542 by a preset angle, it disengages from the second shifter 542. That is, the engagement end point 5410 of the first shifter 541 contacts the engagement end point 5420 of the second shifter 542. At this point, the first end 41 of the secondary screen 4 is raised to its highest point relative to the body 2. The third angle is greater than the second angle α2.

[0149] For example, the preset angle may be less than 5°, such as 1°, as long as sufficient space is reserved for the return engagement of the driving gear 51 .

[0150] When the main screen 1 continues to open from the third angle relative to the body 2, the first shift block 541 and the second shift block 542 exit the meshing state, the driving gear 51 continues to rotate as the main screen 1 opens, and the intermediate gear 52 and the driven gear 53 remain stationary relative to the body 2.

[0151] In this embodiment, as the main screen 1 continues to open from the first angle α1 to the third angle relative to the body 2, the self-locking concave surface 552 of the second protrusion 55 rotates clockwise with the intermediate gear 52. When the main screen 1 is opened from the closed state to the third angle relative to the body 2, the self-locking concave surface 552 of the second protrusion 55 abuts the surface of the first protrusion 54. As the main screen 1 continues to open from the third angle relative to the body 2, the surface of the first protrusion 54 contacts and cooperates with the self-locking concave surface 552 of the second protrusion 55, ensuring that the first end 41 of the auxiliary screen 4 is at its highest point.

[0152] Please also refer to Figure 21 and Figure 22 , Figure 21 yes Figure 1B The schematic diagram of the partial structure of the dual-screen electronic device 100 is shown when the main screen 1 is in the third open state relative to the body 2. Figure 22 yes Figure 10 The partial structure of the linkage component 5 shown is in the dual-screen electronic device 100 Figure 21 Schematic diagram of the structural coordination in the shown state.

[0153] Illustratively, when the main screen 1 continues to open relative to the body 2 from the second angle α2 or the third angle, the main screen 1 enters the third open state. The driving gear 51 rotates as the main screen 1 opens, while the intermediate gear 52 and the driven gear 53 remain stationary relative to the body 2. The first end 41 of the auxiliary screen 4 remains at its highest point relative to the body 2. At this point, the first non-toothed area 512 of the driving gear 51 engages with the intermediate gear 52, and the surface of the first protrusion 54 and the self-locking concave surface 552 of the second protrusion 55 form a profile fit, thereby enhancing the rotational stability of the driving gear 51.

[0154] It is understandable that the process of closing the main screen 1 relative to the body 2 from the open state is opposite to the opening process of the main screen 1, and will not be repeated here.

[0155] The above description is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application; the embodiments of this application and the features of the embodiments can be combined with each other unless there is a conflict. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A dual-screen electronic device, characterized in that: It includes a body, a main screen, a secondary screen and a linkage component, wherein the first end of the main screen is rotatably connected to the body to close or open relative to the body; The linkage assembly is mounted on the body, and includes a driving gear, an intermediate gear, and a passive gear. The driving gear cooperates with the intermediate gear, and the intermediate gear meshes with the passive gear. The peripheral side of the driving gear includes a first gear tooth area and a first non-gear tooth area. The first end of the main screen is fixedly connected to the driving gear, the first end of the auxiliary screen is connected to the passive gear, and the second end of the auxiliary screen is connected to the body. When the main screen is opened from a closed state to a first angle relative to the body, the first non-tooth area of ​​the driving gear cooperates with the intermediate gear, and the driving gear does not drive the intermediate gear to rotate; During the process of the main screen opening from the first angle to the second angle relative to the body, the first gear section of the driving gear engages with the intermediate gear, and the driving gear drives the intermediate gear and the driven gear to rotate, thereby driving the first end of the auxiliary screen to be lifted relative to the body, and the auxiliary screen is opened relative to the body, wherein the second angle is greater than the first angle.

2. The dual-screen electronic device according to claim 1, wherein: When the main screen continues to open relative to the body at the second angle, the first non-tooth area of ​​the driving gear cooperates with the intermediate gear, and the driving gear does not drive the intermediate gear to rotate.

3. The dual-screen electronic device according to claim 2, characterized in that: The linkage assembly also includes a first convex portion and a second convex portion, the first convex portion is fixed to the driving gear and coaxially arranged with the driving gear, the first convex portion protrudes outward relative to the circumference of the driving gear, the second convex portion is fixed to the driven gear and coaxially arranged with the driven gear, the second convex portion protrudes outward relative to the circumference of the intermediate gear, and the second convex portion has a self-locking concave surface. When the main screen continues to open from the second angle relative to the body, the self-locking concave surface contacts and cooperates with the surface of the first convex portion.

4. The dual-screen electronic device according to claim 1, wherein: The linkage assembly further includes a first protrusion and a second protrusion, wherein the first protrusion is fixed to the driving gear and coaxially disposed with the driving gear, and the first protrusion protrudes outward relative to the circumference of the driving gear, and the second protrusion is fixed to the driven gear and coaxially disposed with the driven gear, and the second protrusion protrudes outward relative to the circumference of the intermediate gear, the first protrusion includes a first shifting block, and the second protrusion includes a second shifting block; When the main screen is opened to the second angle relative to the body, the first gear section of the driving gear and the intermediate gear are out of meshing, and the first shift block and the second shift block are in meshing; When the main screen is opened from the second angle to the third angle relative to the body, the first shift block drives the second shift block to rotate by a preset angle and then exits the engagement state with the second shift block, and the third angle is greater than the second angle.

5. The dual-screen electronic device according to claim 4, characterized in that: The second convex portion includes a self-locking concave surface, which is arranged on a side of the second shift block close to the driven gear. When the main screen continues to open relative to the body from the third angle, the first non-tooth area of ​​the driving gear cooperates with the intermediate gear, and the self-locking concave surface cooperates with the surface of the first convex portion.

6. The dual-screen electronic device according to claim 4 or 5, characterized in that: The first shift block has two meshing end points, the driving gear has two meshing end points, and the two meshing end points of the driving gear are located between the two meshing end points of the first shift block in the circumferential direction.

7. The dual-screen electronic device according to any one of claims 3 to 6, characterized in that: The first convex portion is provided with an avoidance groove, and when the main screen is opened from a closed state to the first angle relative to the body, the avoidance groove is used to avoid the second convex portion.

8. The dual-screen electronic device according to any one of claims 1 to 7, characterized in that: The second angle is less than or equal to 90°.

9. The dual-screen electronic device according to any one of claims 1 to 8, characterized in that: The intermediate gear includes a second gear tooth section and a third gear tooth section spaced apart from the second gear tooth section. The second gear tooth section is used to mesh with the first gear tooth section of the driving gear, and the third gear tooth section is used to mesh with the driven gear.

10. The dual-screen electronic device according to claim 9, characterized in that: The tooth height of the gear teeth of the driving gear is different from the tooth height of the gear teeth of the intermediate gear.

11. The dual-screen electronic device according to any one of claims 1 to 10, characterized in that: The secondary screen includes a slide groove, The slide is provided at the first end of the auxiliary screen, the linkage assembly is connected to the first end of the auxiliary screen via the slide, the body includes a rotating shaft, and the second end of the auxiliary screen is rotatably connected to the body via the rotating shaft; Or the slide groove is arranged at the second end of the auxiliary screen, the second end of the auxiliary screen is connected to the body through the slide groove, and the first end of the auxiliary screen is rotatably connected to the linkage assembly.

12. The dual-screen electronic device according to claim 11, characterized in that: The linkage assembly further includes a connecting rod, one end of which is fixedly connected to the passive gear, and the other end of which extends in a direction away from the gear shaft of the passive gear and is connected to the auxiliary screen.

13. The dual-screen electronic device according to claim 12, wherein: When the main screen is opened to the second angle relative to the body, the auxiliary screen is opened 5° to 15° relative to the body.

14. The dual-screen electronic device according to claim 13, wherein: The linkage assembly further includes a driving shaft and a bracket, wherein the bracket is fixed to the machine body, the driving shaft is rotatably connected to the bracket, the driving shaft is fixedly connected to the driving gear, and the driving shaft is used to drive the driving gear to rotate.

15. The dual-screen electronic device according to claim 14, characterized in that: The linkage assembly further includes a damping mechanism, which is sleeved on one end of the driving shaft and mounted on the bracket, and is used to provide a damping force during the rotation of the driving shaft relative to the bracket.

16. The dual-screen electronic device according to any one of claims 1 to 15, characterized in that: Part of the top surface of the body is recessed downward to form a groove. When the main screen is in a closed state relative to the body, the sub-screen is also in a closed state and is received in the groove.

17. The dual-screen electronic device according to claim 16, wherein: The dual-screen electronic device further includes a keyboard. When the main screen is in a closed state relative to the body, the keyboard is received in the groove and stacked above the secondary screen.

18. The dual-screen electronic device according to claim 17, wherein: The dual-screen electronic device further includes a touch panel, which is mounted on the body and exposed relative to the top surface of the body.

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