Rotating shaft structure and electronic equipment

Abstract

The embodiment of the utility model provides a rotating shaft structure and electronic equipment. The rotating shaft structure comprises two shaft bodies including a first shaft body and a second shaft body; the two synchronous door plates comprise the first synchronous door plate and the second synchronous door plate, each of the first synchronous door plate and the second synchronous door plate comprises a main body part and a synchronous part, the synchronous parts are connected to the main body parts, and the synchronous part of the first synchronous door plate is meshed with the synchronous part of the second synchronous door plate; the main body part and the synchronous part of the first synchronous door plate synchronously rotate around the axis of the first shaft body, the main body part and the synchronous part of the second synchronous door plate synchronously rotate around the axis of the second shaft body, and the first synchronous door plate and the second synchronous door plate are the same in rotation angle and opposite in rotation direction. According to the embodiment of the invention, synchronous opening and closing of the two bodies of the electronic equipment are realized through a simple rotating shaft structure, and the number of parts is reduced. The structure is simple, so that the thickness of the rotating shaft structure in a folded state is reduced, and thinning of electronic equipment is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of rotating shafts, and in particular to a rotating shaft structure and electronic equipment. Background Art

[0002] In recent years, with the rapid development and popularization of smart mobile terminals, laptop computers, for example, have evolved from traditional laptop computers into products that can be completely folded inward or outward. Such laptop computers can not only fold inward, so that the screen side (B side) and keyboard side (C side) of the laptop fit together, but can also fold outward, so that the top surface (A side) and bottom shell (D side) of the laptop fit together. This allows the laptop to transform between multiple forms, allowing consumers to freely change the form of the laptop according to their usage scenarios.

[0003] However, such electronic devices often have complex hinge structures and a large number of parts. This complex hinge design not only reduces assembly efficiency and increases costs, but also increases the failure rate. The complex and bulky hinge structure also makes the electronic device thick when folded, preventing it from being thinner. Utility Model Content

[0004] To solve the above technical problems, the present application provides a hinge structure and electronic device that can improve assembly efficiency, reduce costs, and lower failure rates, thereby reducing the thickness of the electronic device in its folded state and achieving thinness.

[0005] In the first aspect, an embodiment of the present application provides a rotating shaft structure, including: two shafts, including a first shaft and a second shaft, the axis center of the first shaft and the axis center of the second shaft are parallel to each other; two synchronous door panels, including a first synchronous door panel and a second synchronous door panel, the first synchronous door panel and the second synchronous door panel both include a main body and a synchronous part, the synchronous part is connected to the main body, the synchronous part of the first synchronous door panel and the synchronous part of the second synchronous door panel are engaged with each other, the main body and the synchronous part of the first synchronous door panel both rotate synchronously around the axis center of the first shaft, the main body and the synchronous part of the second synchronous door panel both rotate synchronously around the axis center of the second shaft, the first synchronous door panel and the second synchronous door panel have the same rotation angle and opposite rotation direction.

[0006] The synchronous door panel in this embodiment includes a main body and a synchronous part. Both the main body and the synchronous part rotate synchronously around the axis of the shaft. It can be seen that no transmission mechanism such as a transmission gear set is set between the main body and the synchronous part. The main body and the synchronous part can be directly connected, and the structure is simple. In addition, the synchronous parts of the two synchronous door panels are engaged with each other, so that the synchronous parts can achieve the same rotation angle and opposite rotation directions. The structure of the synchronous part itself is simple. The embodiment of the present application realizes the synchronous opening and closing of the two bodies of the electronic device through a simple hinge structure, which reduces the number of parts, reduces the difficulty of assembly, and improves assembly efficiency. In addition, due to the simple structure, the thickness of the hinge structure in the folded state is reduced, which is conducive to the thinning of the electronic device.

[0007] In some possible implementations, the main body is provided with a connection hole for connecting to the first body or the second body. The first body or the second body can be connected through the connection hole, thereby achieving connection between the hinge structure and the body.

[0008] In some possible implementations, the synchronization portion includes a synchronization gear sub-portion and a synchronization gear linkage sub-portion. The synchronization gear sub-portion of the first synchronization door panel and the synchronization gear sub-portion of the second synchronization door panel mesh with each other. One end of the synchronization gear linkage sub-portion is connected to the main body portion, and the other end is connected to the synchronization gear sub-portion. The synchronization gear linkage sub-portion is used to synchronize the rotation of the main body portion and the synchronization gear sub-portion around the axis of the shaft. The synchronization portion adopts a split structural design. During assembly, the various parts of the synchronization portion will not interfere with each other, facilitating assembly.

[0009] In some possible implementations, the synchronous gear sub-unit includes a cylindrical gear having teeth on its side and a gear hole defined therein, with the axis of the gear hole coinciding with the axis of the cylindrical gear. In this structure, the cylindrical side surfaces are all identical, eliminating the need to distinguish between them, simplifying assembly.

[0010] In some possible implementations, the synchronous gear linkage sub-unit includes a half gear fixedly connected to an edge of the main body, with teeth provided on a side of the half gear away from the main body. Within a synchronous unit, the half gear and the synchronous gear sub-unit mesh with each other. This meshing connection between the half gear and the synchronous gear sub-unit simplifies assembly.

[0011] In some possible implementations, the first and second synchronized door panels each further include two sleeves. Both sleeves and the synchronized portion are connected to one side of the main body. Through holes are defined within the two sleeves. The through holes of the two sleeves are coaxially disposed and sleeved onto the shaft, allowing the two sleeves to rotate about the shaft. By connecting the main body to the shaft via the sleeves, both the main body and the synchronized portion can rotate about the shaft, resulting in a simple structure.

[0012] In some possible implementations, two damping mechanisms are further included, and the two damping structures are used to make the first synchronized door panel and the second synchronized door panel hover when the angle between them is a preset angle, and to provide damping force when the angle between the first synchronized door panel and the second synchronized door panel changes from the preset angle.

[0013] In some possible implementations, the first and second synchronized door panels each further include two sleeves, each sleeve including a sleeve body and a cam sub-portion. The two sleeves and the synchronized portion are both connected to one side of the main body. Through holes are provided in the two sleeves, and the through holes of the two sleeves are coaxially arranged and sleeved on the shaft, so that the two sleeves can rotate around the shaft. The damping mechanism includes a cam assembly and a spring assembly. The cam assembly includes a cam group body and two sub-cams. In the second direction, the two sub-cams are both connected to the side of the cam group body away from the synchronized portion. In the second direction, the sub-cams include a sub-cam first surface away from the synchronized portion. The cam sub-portion of the first synchronized door panel and the cam sub-portion of the second synchronized door panel are respectively in close proximity to the sub-cam first surfaces of the two sub-cams, and the shape of the cam sub-portion matches the sub-cam first surface. The damping mechanism has a simple structure, is easy to implement, is low in cost, and occupies a small space.

[0014] In some possible implementations, the first surface of the sub-cam is an annular wavy surface.

[0015] In some possible implementations, an intermediate door panel is further included. In the third direction, the intermediate door panel is arranged on at least one side of the two shafts to limit the maximum value or minimum value of the angle between the first synchronous door panel and the second synchronous door panel.

[0016] In some possible implementations, the maximum angle is 360 degrees, and the minimum angle is 0 degrees, to avoid excessive bending of the fuselage.

[0017] In some possible implementations, two damping mechanisms are further included, both of which are penetrated by the first shaft and the second shaft; the middle door panel includes four sub-middle door panels, and two sub-middle door panels are provided on each side of the two shafts and the two damping mechanisms in the third direction. The sub-middle door panels include a first door panel body portion and a second door panel body portion that are interconnected. The position of the first door panel body portion corresponds to the position of at least part of the damping mechanism in the third direction, and the position of the second door panel body portion corresponds to the position of at least part of the shaft and the area between the two shafts in the third direction. Such an middle door panel structure can protect the damping mechanism from being damaged by external forces, and can also limit the maximum opening and closing angle and the minimum opening and closing angle between the two synchronized door panels through the second door panel body portion, that is, the maximum value or the minimum value of the included angle between the first synchronized door panel and the second synchronized door panel.

[0018] In a second aspect, an embodiment of the present application provides an electronic device, comprising any one of the above-mentioned hinge structures, and having the corresponding beneficial effects as the above-mentioned hinge structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a laptop computer provided in an embodiment of the present application.

[0020] Figure 2 A side view of a laptop computer provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the front structure of a rotating shaft structure provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application;

[0023] Figure 5 A front structural diagram of a rotating shaft structure provided in an embodiment of the present application without showing the middle door panel;

[0024] Figure 6 A schematic diagram of the back structure of a rotating shaft structure without showing the middle door panel provided in an embodiment of the present application;

[0025] Figure 7 A schematic structural diagram of a synchronous door panel provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of the partial structure of a synchronous door panel provided in an embodiment of the present application;

[0027] Figure 9 A schematic diagram of the partial structure of a synchronous door panel and shaft provided in an embodiment of the present application;

[0028] Figure 10 Another structural schematic diagram of a rotating shaft structure provided in an embodiment of the present application;

[0029] Figure 11 Another structural diagram of a rotating shaft structure provided by an embodiment of the present application, not showing the middle door panel;

[0030] Figure 12 A schematic diagram of another partial structure of a rotating shaft structure provided in an embodiment of the present application;

[0031] Figure 13 A schematic structural diagram of a cam assembly provided in an embodiment of the present application;

[0032] Figure 14 A schematic structural diagram of a rotating shaft structure in a first state provided by an embodiment of the present application;

[0033] Figure 15 A schematic structural diagram of a rotating shaft structure in a second state provided in an embodiment of the present application;

[0034] Figure 16 A schematic structural diagram of a rotating shaft structure in a third state provided in an embodiment of the present application;

[0035] Figure 17 A schematic structural diagram of a rotating shaft structure in a fourth state provided in an embodiment of the present application;

[0036] Figure 18 This is a structural schematic diagram of a rotating shaft structure in a fifth state provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] The term "and / or" in this article is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0039] The terms "upper," "lower," "left," and "right" used herein to indicate directions are intended only to clarify the embodiments and to describe one possible arrangement or configuration of components. They are not intended to limit the relationships between components or their orientation.

[0040] In the description and claims of the embodiments of this application, the terms "first" and "second" are used to distinguish different objects, rather than to describe a specific order of objects. For example, the terms "first target object" and "second target object" are used to distinguish different objects, rather than to describe a specific order of objects.

[0041] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0042] In the description of the embodiments of this application, unless otherwise specified, "multiple" means two or more. For example, "multiple processing units" means two or more processing units; "multiple systems" means two or more systems.

[0043] The present invention provides a foldable terminal. The foldable terminal provided in the present invention can be a laptop computer, a mobile phone, a tablet computer, a personal digital assistant (PDA), an in-car computer, a television, a smart wearable device, a smart home device, etc. The present invention does not specifically limit the specific form of the foldable terminal. For the sake of convenience, the following description uses a laptop computer as an example.

[0044] See also Figure 1 , Figure 1 This is a schematic diagram of the structure of a notebook computer provided in an embodiment of the present application. Figure 1 As shown, the laptop computer 100 includes a first body 10, a second body 20, and a hinge structure 30. The first body 10 includes a surface A provided with a top surface and a surface B provided with a first display unit. The second body 20 includes a surface C provided with an input device such as a keyboard and a surface D provided with a bottom shell. Of course, the above description is only an example of a structure of a laptop computer and is not intended to limit the structure of the laptop computer in the embodiment of the present application. The structure of the laptop computer in the embodiment of the present application can be any structure and is not intended to limit the structure of the laptop computer. For example, surface A of the first body 10 may include a second display unit.

[0045] The first display unit includes, for example, an organic light emitting diode (OLED) display screen. The OLED display screen does not require a backlight module, and the base substrate in the OLED display screen can be made of, for example, a flexible resin material, such as polyethylene terephthalate (PET), so that the OLED display screen has a bendable property. Alternatively, the base substrate in the OLED display screen uses a rigid material to form a rigid OLED display screen. Of course, the type of the first display unit includes but is not limited to OLED display screens. As long as the display screen can be bent, it is within the scope of protection of this application. For example, it can also be a liquid crystal display (LCD) screen, an LED display screen (for example, including a Micro-LED display screen, a Mini-LED display screen), etc. The first display unit may also have a touch function, and the control command can be input by touching or clicking or sliding the first display unit with a stylus.

[0046] Continue to see Figure 1The first body 10 and the second body 20 are located on either side of a hinge structure 30, which is connected to the first body 10 and the second body 20, respectively. The first body 10 and the second body 20 can each rotate about an axis S0 of the hinge structure 30, thereby allowing the first body 10 and the second body 20 to be unfolded to a desired angle. In other words, the laptop computer 100 can be folded inward, outward, and unfolded.

[0047] See also Figure 2 , Figure 2 This is a side view of a laptop computer provided in an embodiment of the present application. Figure 2 The figure shows the unfolded configuration of the laptop computer 100. In this unfolded configuration, the user can use input devices such as the keyboard on side C while viewing the first display unit on side B. When the laptop computer 100 is folded inward, sides B and C are close together. When the laptop computer 100 is folded outward, sides A and D are close together. Sides A and D can be made of any surface with a certain degree of structural strength, such as ABS engineering plastic, magnesium alloy, aluminum alloy, titanium alloy, or carbon fiber. Side B may include a camera, microphone, and the first display unit. Side C may include input devices such as a keyboard, touchpad, trackball, or joystick for inputting control commands. In the folded inward configuration, sides B and C are close together, with sides A and D positioned outward, providing better protection for the laptop computer 100 from damage caused by bumps. In the folded outward configuration, sides A and D are close together, with sides B and C positioned outward, allowing the laptop computer 100 to occupy less space when in use while meeting the user's entertainment and office needs.

[0048] In other embodiments, the laptop computer 100 can be folded in two or more positions and, accordingly, can include two or more hinge structures 30 and multiple bodies. For example, it can include two hinge structures 30 and three bodies, with two adjacent bodies connected by a hinge structure 30. In this way, the laptop computer 100 has two folded positions. It can be seen that the laptop computer 100 includes at least one hinge structure 30 and at least two bodies, with two adjacent bodies connected by a hinge structure 30. For ease of explanation, the embodiments of this application are described using the example of a laptop computer 100 including one hinge structure 30 and two bodies (i.e., a first body 10 and a second body 20).

[0049] The specific structure of the rotating shaft structure 30 provided in the embodiment of the present application is introduced below.

[0050] It should be noted that, to facilitate a clear description of the subsequent structural features and their positional relationships, the positional relationships of the various structures within the hinge structure 30 are defined using the X-axis, Y-axis, and Z-axis directions. The X-axis direction (also referred to as the second direction) is the direction of extension of the axis of the hinge structure 30, i.e., the width direction of the laptop computer 100 when flattened; the Y-axis direction (also referred to as the first direction) is the width direction of the hinge structure 30, i.e., the length direction of the laptop computer 100 when flattened; and the Z-axis direction (also referred to as the third direction) is the thickness direction of the hinge structure 30, i.e., the thickness direction of the laptop computer 100 when flattened.

[0051] See also Figures 3 to 6 , Figure 3 This is a front structural diagram of a rotating shaft structure provided in an embodiment of the present application. Figure 4 This is a schematic diagram of the back structure of a rotating shaft structure provided in an embodiment of the present application. Figure 5 This is a front structural diagram of a rotating shaft structure provided by an embodiment of the present application, not showing the middle door panel. Figure 6 This is a schematic diagram of the back structure of a rotating shaft structure without showing the middle door panel provided in the embodiment of the present application. Figures 3 to 6 As shown, the rotating shaft structure 30 includes two synchronous door panels 31, a middle door panel 32, two shafts 33, and two damping mechanisms 34. The two synchronous door panels 31 are respectively a first synchronous door panel 311 and a second synchronous door panel 312. The two shafts 33 are respectively a first shaft 331 and a second shaft 332. The two damping mechanisms 34 are respectively a first damping mechanism and a second damping mechanism.

[0052] Along the Y-axis, the rotating shaft structure 30 is provided with a first synchronous door panel 311 and a second synchronous door panel 312. The two synchronous door panels 31 cooperate to achieve real-time synchronization of their opening and closing angles relative to the middle door panel 32. A first and a second escape space are formed in the adjacent areas of the first and second synchronous door panels 311, 312. The first and second escape spaces are arranged along the X-axis, respectively. A first damping mechanism is disposed in the first escape space, and a second damping mechanism is disposed in the second escape space. A first shaft 331 passes through the first damping mechanism, the first synchronous door panel 311, and the second damping mechanism, while a second shaft 332 passes through the first damping mechanism, the second synchronous door panel 312, and the second damping mechanism. The damping mechanism 34 provides damping force when the synchronous door panels 31 open and close, allowing the two synchronous door panels 31 to hover at the desired opening and closing angles. Placing the damping mechanism 34 in the escape space further reduces the weight and thickness of the rotating shaft structure 30. Along the Z-axis direction, a middle door panel 32 and two damping mechanisms 34 are respectively provided.

[0053] The structure of the synchronous door panel 31 is introduced below.

[0054] Continue to see Figure 5 The first synchronous door plate 311 and the second synchronous door plate 312 are symmetrically distributed about the axis S0. Figure 7 , Figure 7 This is a structural diagram of a synchronous door panel provided in an embodiment of the present application. Figure 7 As shown, the first synchronization door plate 311 and the second synchronization door plate 312 each include a main body 313, two sleeves 314, and a synchronization portion 315. Along the Y-axis, the two sleeves 314 and the synchronization portion 315 of the first synchronization door plate 311 are both disposed on the main body 313 of the first synchronization door plate 311, near the edge of the second synchronization door plate 312. The two sleeves 314 and the synchronization portion 315 of the second synchronization door plate 312 are both disposed on the main body 313 of the second synchronization door plate 312, near the edge of the first synchronization door plate 311. Along the X-axis, the shaft 33 passes through the sleeve 314, the damping mechanism 34, the synchronization portion 315, the damping mechanism 34, and the sleeve 314, respectively. For example, along the X-axis, the sleeve 314 and the damping mechanism 34 are symmetrical about the synchronization portion 315. The main body 313 , two sleeves 314 and the synchronizing portion 315 of the first synchronizing door plate 311 and the second synchronizing door plate 312 together form a first avoidance space and a second avoidance space.

[0055] The main body 313 is used to connect to the first body 10 or the second body 20. The present embodiment does not limit the specific parameters of the main body, such as shape and size, as long as it can connect to the first body 10 or the second body 20. For example, the main body 313 can be a rectangular plate-shaped structure. The main body 313 can be provided with connection holes, such as screw holes, for connecting to the first body 10 or the second body 20.

[0056] See also Figure 8 , Figure 8 This is a partial structural diagram of a synchronous door panel provided in an embodiment of the present application. Figure 5 and Figure 8 As shown, the sleeve 314 includes a sleeve body 3141 and a cam sub-portion 3142. Along the X-axis direction, the cam sub-portion 3142 is fixedly arranged on the side of the sleeve body 3141 facing the synchronization portion 315. The side of the cam sub-portion 3142 facing the synchronization portion 315 is provided with a recessed and protruding surface for cooperating with the damping mechanism 34, thereby providing a damping force and a hovering effect for the rotating shaft structure 30 during the expansion and closure process. The sleeve body 3141 and the cam sub-portion 3142 are both provided with coaxial through holes. During the assembly process, the shaft body 33 can pass through the through hole of the sleeve 314. After the assembly is completed, the sleeve 314 can rotate around the shaft body 33.

[0057] In other embodiments, other components may be used instead of the sleeve 314 so that the synchronous door panel 31 can rotate around the axis of the shaft 33 and cooperate with the damping mechanism to realize the function of the damping mechanism.

[0058] See also Figure 9 , Figure 9 This is a schematic diagram of the partial structure of a synchronous door panel and shaft provided in an embodiment of the present application. Figure 9 As shown, the synchronization portion 315 includes a synchronization gear sub-portion 3151 and a synchronization gear linkage sub-portion 3152. The synchronization gear linkage sub-portion 3152 can be a half gear. Along the Y-axis, the half gear is fixedly connected to the edge of the main body 313. The side of the half gear facing the main body 313 is not equipped with teeth, while the side away from the main body 313 is equipped with teeth. The synchronization gear sub-portion 3151 can be a cylindrical gear with teeth on the cylindrical side surface of the synchronization gear sub-portion 3151. The tooth parameters such as the tooth width and number of teeth of the half gear and the synchronization gear sub-portion 3151 can be determined according to actual needs. The half gear of the first synchronization door plate 311 and the synchronization gear sub-portion 3151 mesh with each other, while the half gear of the second synchronization door plate 312 and the synchronization gear sub-portion 3151 mesh with each other. Furthermore, the synchronization gear sub-portions 3151 of the first synchronization door plate 311 and the second synchronization door plate 312 mesh with each other. A through hole is provided in the synchronous gear sub-section 3151, and the axis of the through hole coincides with the axis of the synchronous gear sub-section 3151. During assembly, the shaft body 33 can pass through the through hole of the synchronous gear sub-section 3151. After assembly is completed, the synchronous gear sub-section 3151 can rotate around the shaft body 33. With the cooperation of the synchronous door panel sleeve 314, the meshing position between the half gear and the synchronous gear sub-section 3151 does not change. Therefore, the positional relationship between the main body 313 of the synchronous door panel 31 and the synchronous gear sub-section 3151 does not change, and the rotation angles of the two remain consistent in real time. Considering that the synchronous gear sub-sections 3151 of the first synchronous door panel 311 and the second synchronous door panel 312 are meshed with each other, the rotation of one synchronous gear sub-section 3151 will inevitably drive the other synchronous gear sub-section 3151 to rotate in the opposite direction. Therefore, the first synchronous door panel 311 and the second synchronous door panel 312 can rotate in a manner of meeting or moving away from each other, and the rotation angles are the same.

[0059] Of course, the above description only illustrates one example of a synchronizer structure. In reality, the synchronizer can be any component comprising a gear or partial gear, with two synchronizers meshing with each other and enabling the main body and synchronizer to rotate coaxially. The synchronizer in the embodiments of the present application can have any structure, provided it does not violate the aforementioned functional requirements. For example, the synchronizer can be a half-gear structure fixedly attached to the edge of the main body, with a through-hole for a shaft to pass through, allowing the synchronized door panels to rotate about the shaft. The half-gear structures of the first and second synchronized door panels mesh, thereby achieving synchronized opening and closing of the first and second synchronized door panels. Alternatively, a synchronized gear linkage sub-section can be fixedly attached to the edge of the main body, with a terminal provided on the end of the synchronizer body away from the main body. The synchronized gear sub-section has a plug-in slot. The terminal can be inserted into the plug-in slot of the synchronizer body, achieving plug-in connection between the synchronizer body and the synchronizer sub-section. The synchronized gear sub-sections of the first and second synchronized door panels mesh, thereby achieving synchronized opening and closing of the first and second synchronized door panels.

[0060] The structure of the middle door panel 32 will be described below.

[0061] See also Figure 10 , Figure 10 This is another structural diagram of a rotating shaft structure provided in an embodiment of the present application. Figure 10As shown, along the X-axis, the middle door panel 32 includes four sub-middle door panels 321. Along the Z-axis, two sub-middle door panels 321 are positioned on either side of the two shafts 33 and the two damping mechanisms 34. The two sub-middle door panels 321 on each side are aligned along the X-axis. The sub-middle door panels 321 include a door panel body, which can be connected to an external structural member to maintain its position relative to the two shafts 33 and the two damping mechanisms 34. For example, the door panel body is a plate-shaped structure, with the plane extending from the door panel body being perpendicular to the Z-axis. The present embodiment is not limited to the shape of the door panel body; it only requires that, during the bending of the first and second synchronized door panels 311, 312 toward the middle door panel 32, if the angle between the first and second synchronized door panels 311, 312 reaches 0 degrees or 360 degrees, the middle door panel 32 will prevent the first and second synchronized door panels 311, 312 from bending further toward the middle door panel 32. And it protects the shaft 33 and the damping mechanism 34 from damage by foreign objects. Exemplarily, the door panel body includes a first door panel body portion 3211 and a second door panel body portion 3212 that are connected to each other. The first door panel body portion 3211 is located at a position corresponding to the first avoidance space or the second avoidance space in the Z-axis direction, that is, a position corresponding to the damping mechanism 34 in the Z-axis direction. The outline of the first door panel body portion 3211 is smaller than the outline of the first avoidance space or the second avoidance space. This ensures that the first door panel body portion 3211 does not affect the smooth opening and closing of the first synchronous door panel 311 and the second synchronous door panel 312. The first door panel body portion 3211 protects the shaft 33 and the damping mechanism 34 from damage by foreign objects. In the X-axis direction, the second part 3212 of the door panel body corresponds to the sleeve 314 and the area between the two sleeves 314, and is used to prevent the first synchronous door panel 311 and the second synchronous door panel 312 from further bending toward the middle door panel 32 once the angle between the first synchronous door panel 311 and the second synchronous door panel 312 is 0 degrees or 360 degrees.

[0062] Of course, the above description only illustrates one example structure for the intermediate door panel. The intermediate door panel can also be any structure that achieves the aforementioned functions. For example, along the Z-axis, two sub-intermediate door panels are provided on either side of the two shafts and the two damping mechanisms, with the two sub-intermediate door panels aligned along the X-axis. The sub-intermediate door panels include a door panel body and a connecting portion. Both the door panel body and the connecting portion can be plate-shaped structures. The plane extending from the door panel body is perpendicular to the Z-axis, while the plane extending from the connecting portion is perpendicular to the X-axis. The door panel body and the connecting portion are fixedly connected to each other. Each connecting portion can have two through-holes for respectively passing through the two shafts. Along the X-axis, the shafts pass through the sleeve, the damping mechanism, the connecting portion, the synchronizing portion, the connecting portion, the damping mechanism, and the sleeve in sequence. The connecting portion connects the intermediate door panel to the shaft. The door panel body can be connected to an external structural member to ensure that the door panel body maintains its position relative to the two shafts and the two damping mechanisms. The connecting portion further strengthens the connection between the intermediate door panels, preventing breakage or damage. In addition, the above description merely illustrates the example of the intermediate door panel limiting the minimum and maximum angles between the first and second synchronized door panels to 0 degrees and 360 degrees, respectively. In practice, the minimum and maximum angles between the first and second synchronized door panels can be adjusted by adjusting parameters such as the width of the corresponding door panels. Furthermore, along the Z-axis, the position of the second portion of the door panel body can also correspond to at least a portion of the shaft body and the area between the two shaft bodies. The position of the second portion of the door panel body can be determined based on this and actual needs.

[0063] In other embodiments, the middle door panel 32 may be omitted to reduce the number of components of the shaft structure and reduce the weight.

[0064] It should be noted that the hinge structure 30 of the embodiment of the present application is described herein using a laptop computer as an example. However, the hinge structure 30 described herein can be used not only in laptop computers, but also in any electronic product requiring a hinge structure, such as a foldable screen mobile phone.

[0065] The structure of the shaft body 33 is described below.

[0066] See also Figure 11 , Figure 11 This is another structural diagram of a rotating shaft structure without showing the middle door panel provided in the embodiment of the present application. Figure 11As shown, the two shafts 33 may include a first shaft 331 and a second shaft 332. The first synchronous door plate 311 rotates around the axis of the first shaft 331, and the second synchronous door plate 312 rotates around the axis of the second shaft 332. The shafts 33 respectively pass through the two sleeves 314, the two damping mechanisms 34, and the synchronization portion 315. The specific structure of the shafts 33 is not limited in this embodiment of the application; it is sufficient that the sleeves 314 and synchronization portion 315 of the synchronous door plate 31 can rotate around the shafts. For example, the shafts 33 may be cylindrical.

[0067] The structure of the damping mechanism 34 is described below.

[0068] See also Figure 12 , Figure 12 This is another partial structural diagram of a rotating shaft structure provided in an embodiment of the present application. Figure 12 As shown, along the X-axis direction, the damping mechanism 34 includes a cam assembly 341 and a spring assembly 342. The cam assembly 341 cooperates with the cam sub-section 3142 of the first synchronous door plate 311 and the cam sub-section 3142 of the second synchronous door plate 312. Along the X-axis direction, the two ends of the spring assembly 342 respectively abut against the cam assembly 341 and the synchronous gear sub-section 3151. Figure 10 Along the X-axis direction, the two damping mechanisms 34 can be symmetrical about the synchronous gear sub-portion 3151 , and a damping mechanism 34 is provided on both sides of the synchronous gear sub-portion 3151 .

[0069] See also Figure 13 , Figure 13 This is a schematic diagram of the structure of a cam assembly provided in an embodiment of the present application. Figure 12 and Figure 13As shown, along the X-axis, the cam assembly 341 includes a cam assembly body 3411 and two sub-cams 3412. Both sub-cams 3412 are connected to the side of the cam assembly body 3411 away from the synchronization gear sub-section 3151. Along the X-axis, the sub-cam 3412 includes a sub-cam first surface 34121 away from the synchronization gear sub-section 3151. This sub-cam first surface 34121 can be an annular wavy surface. This sub-cam first surface 34121 includes convex points located at the crests of the wavy pattern and concave points located at the troughs of the wavy pattern. The sub-cam first surface 34121 abuts the cam sub-section 3142. The shape of the cam sub-section 3142 can closely match the sub-cam first surface 34121. That is, the contact surface between the cam sub-section 3142 and the sub-cam first surface 34121 is also an annular wavy surface, similarly including convex points located at the crests of the wavy pattern and concave points located at the troughs of the wavy pattern. The two sub-cams 3412 are respectively positioned against the cam sub-portion 3142 of the first synchronous door plate 311 and the cam sub-portion 3142 of the second synchronous door plate 312. Along the X-axis, the cam assembly 341 includes two through-holes extending through the sub-cams 3412 and the cam assembly body 3411 connected to the sub-cams 3412. During assembly, the shaft 33 can pass through the through-holes of the cam assembly 341 to complete the assembly. The shape of the cam assembly body 3411 can be determined according to actual needs.

[0070] Continue to see Figure 12 The spring assembly 342 includes two springs 3421. Springs 3421 can be cylindrical springs. During assembly, the springs 3421 can be passed through the shaft 33 along the X-axis, completing the assembly. One end of the spring 3421 contacts the synchronization gear sub-section 3151 of the synchronization door plate 31, while the other end of the spring 3421 contacts the cam assembly body 3411 of the cam assembly 341.

[0071] Of course, the above description only illustrates one exemplary structure of the damping mechanism 34. In reality, the structure of the damping mechanism can be determined based on actual needs. In other embodiments, the damping mechanism can be omitted, further reducing the number of parts, lowering the failure rate, and lowering costs. Furthermore, the surface shape of the sub-cam first surface 34121 can also be other than an annular wavy surface, which can be determined based on actual needs.

[0072] The above describes the various structures of the rotating shaft structure 30 and their positional relationships. It can be seen that in the rotating shaft structure 30 provided in the embodiment of the present application, the main body 313 and the synchronizing portion 315 of the two synchronized door panels 31 rotate coaxially. In the rotating shaft structure 30, only the two synchronized door panels 31 serve as the rotating structure to achieve synchronized opening and closing of the two synchronized door panels 31. Compared to the complex rotating shaft structure 30 designs of the prior art, the embodiment of the present application significantly reduces the number of components comprising the rotating shaft structure 30, facilitating the thinning and lightweighting of electronic products, improving production efficiency, and reducing costs.

[0073] Based on the various structures of the above-mentioned hinge structure 30 , the working principle of folding or unfolding the notebook computer through the hinge structure 30 will be described below.

[0074] See also Figure 14 and Figure 15 , Figure 14 This is a structural diagram of a rotating shaft structure in a first state provided by an embodiment of the present application. Figure 15 This is a schematic diagram of a shaft structure in the second state provided in an embodiment of the present application. Figure 12 、 Figure 13 、 Figure 14 and Figure 15 As shown, the hinge structure 30 is in the first state, with the laptop computer 100 folded inward. Sides B and C of the laptop computer 100 are abutting each other, while Sides A and D are exposed. At this point, the angle between the first and second synchronization panels 311, 312 in the hinge structure 30 is 0 degrees. The cam section 3142 and the sub-cam 3412 are tightly fitted together, with the convex point of the cam section 3142 facing the concave point of the sub-cam 3412, and the concave point of the cam section 3142 facing the convex point of the sub-cam 3412. The spring 3421 is relatively relaxed. As the angle between the first and second synchronization panels 311, 312 increases due to external force, the cam section 3142 rotates relative to the sub-cam 3412 about the shaft 33. The convex point of the cam section 3142 gradually moves away from the concave point of the sub-cam 3412, sliding on the annular wavy surface of the sub-cam 3412 until it reaches the convex point of the sub-cam 3412. During this process, along the X-axis, the cam sub-portion 3142 squeezes the sub-cam 3412, forcing the cam assembly 341 to squeeze the spring 3421, making this process quite laborious. As the cam sub-portion 3142 continues to rotate, the convex point of the cam sub-portion 3142 gradually deviates from the convex point of the sub-cam 3412, sliding on the annular wavy surface of the sub-cam 3412 until it reaches the concave point of the sub-cam 3412, allowing the cam sub-portion 3142 and sub-cam 3412 to engage tightly. During this process, along the X-axis, the spring 3421 pushes the cam assembly 341 toward the cam sub-portion 3142, gradually releasing the spring 3421, making this process less laborious. This process continues until the angle between the first and second synchronous door plates 311, 312 in the rotating shaft structure 30 reaches 90 degrees, and the rotating shaft structure 30 enters the second state.

[0075] See also Figure 16 , Figure 16 This is a schematic diagram of a shaft structure in the third state provided in an embodiment of the present application. Figure 12 、 Figure 13 、 Figure 15 and Figure 16As shown, the hinge structure 30 is in the second state, and the laptop computer 100 is in an inwardly folded, partially unfolded state. At this point, the angle between the first and second synchronization panels 311, 312 in the hinge structure 30 is 90 degrees. The cam section 3142 and the sub-cam 3412 fit tightly together, with the convex point of the cam section 3142 facing the concave point of the sub-cam 3412, and the concave point of the cam section 3142 facing the convex point of the sub-cam 3412. The spring 3421 is relatively relaxed. As the angle between the first and second synchronization panels 311, 312 increases due to external force, the cam section 3142 rotates relative to the sub-cam 3412 about the shaft 33. The convex point of the cam section 3142 gradually deviates from the concave point of the sub-cam 3412, sliding on the annular wavy surface of the sub-cam 3412 until it reaches the convex point of the sub-cam 3412. During this process, along the X-axis, cam sub-portion 3142 squeezes sub-cam 3412, forcing cam assembly 341 to squeeze spring 3421, making this process quite laborious. As cam sub-portion 3142 continues to rotate, the convex point of cam sub-portion 3142 gradually deviates from the convex point of sub-cam 3412, sliding on the annular wavy surface of sub-cam 3412 until it reaches the concave point of sub-cam 3412, allowing cam sub-portion 3142 and sub-cam 3412 to engage tightly. During this process, along the X-axis, spring 3421 pushes cam assembly 341 toward cam sub-portion 3142, gradually releasing spring 3421, making this process less laborious. This process continues until the angle between the first synchronous door plate 311 and the second synchronous door plate 312 in the rotating shaft structure 30 reaches 180 degrees, and the rotating shaft structure 30 enters the third state.

[0076] See also Figure 17 , Figure 17 This is a schematic diagram of a structure of a rotating shaft structure in a fourth state provided in an embodiment of the present application. Figure 12 、 Figure 13 、 Figure 16 and Figure 17As shown, the hinge structure 30 is in the third state, and the laptop computer 100 is in a flattened state. At this point, the angle between the first and second synchronization door plates 311, 312 in the hinge structure 30 is 180 degrees. The cam portion 3142 and the sub-cam 3412 fit tightly together, with the convex point of the cam portion 3142 facing the concave point of the sub-cam 3412, and the concave point of the cam portion 3142 facing the convex point of the sub-cam 3412. The spring 3421 is relatively relaxed. As the angle between the first and second synchronization door plates 311, 312 increases due to external force, the cam portion 3142 rotates relative to the sub-cam 3412 about the shaft 33. The convex point of the cam portion 3142 gradually deviates from the concave point of the sub-cam 3412, sliding on the annular wavy surface of the sub-cam 3412 until it reaches the convex point of the sub-cam 3412. During this process, along the X-axis, cam sub-portion 3142 squeezes sub-cam 3412, forcing cam assembly 341 to squeeze spring 3421, making this process quite laborious. As cam sub-portion 3142 continues to rotate, the convex point of cam sub-portion 3142 gradually deviates from the convex point of sub-cam 3412, sliding on the annular wavy surface of sub-cam 3412 until it reaches the concave point of sub-cam 3412, allowing cam sub-portion 3142 and sub-cam 3412 to engage tightly. During this process, along the X-axis, spring 3421 pushes cam assembly 341 toward cam sub-portion 3142, gradually releasing spring 3421, making this process less laborious. This process continues until the angle between the first synchronous door plate 311 and the second synchronous door plate 312 in the rotating shaft structure 30 reaches 270 degrees, and the rotating shaft structure 30 enters the fourth state.

[0077] See also Figure 18 , Figure 18 This is a schematic diagram of a structure of a rotating shaft structure in the fifth state provided in an embodiment of the present application. Figure 12 、 Figure 13 、 Figure 17 and Figure 18As shown, the hinge structure 30 is in the fourth state, with the notebook in a partially unfolded, folded-out position. At this point, the angle between the first and second synchronization panels 311, 312 in the hinge structure 30 is 270 degrees. The cam section 3142 and the sub-cam 3412 fit tightly together, with the convex point of the cam section 3142 facing the concave point of the sub-cam 3412, and the concave point of the cam section 3142 facing the convex point of the sub-cam 3412. The spring 3421 is relatively relaxed. As the angle between the first and second synchronization panels 311, 312 increases due to external force, the cam section 3142 rotates relative to the sub-cam 3412 about the shaft 33. The convex point of the cam section 3142 gradually deviates from the concave point of the sub-cam 3412, sliding on the annular wavy surface of the sub-cam 3412 until it reaches the convex point of the sub-cam 3412. During this process, along the X-axis, the cam sub-section 3142 compresses the sub-cam 3412, forcing the cam assembly 341 to compress the spring 3421, making this process quite laborious. As the cam sub-section 3142 continues to rotate, the convex point of the cam sub-section 3142 gradually deviates from the convex point of the sub-cam 3412, sliding along the annular wavy surface of the sub-cam 3412 until it reaches the concave point of the sub-cam 3412, allowing the cam sub-section 3142 and sub-cam 3412 to engage tightly. During this process, along the X-axis, the spring 3421 pushes the cam assembly 341 toward the cam sub-section 3142. The spring 3421 gradually releases, making this process less laborious. This process ends when the angle between the first and second synchronizing door panels 311, 312 of the hinge structure 30 reaches 360 degrees, and the hinge structure 30 assumes the fifth state. The laptop computer 100 folds outward, with the A and D surfaces of the laptop computer 100 resting against each other.

[0078] It should be noted that the above only introduces the preset angle of hovering between the first synchronous door panel 311 and the second synchronous door panel 312 by way of example. In fact, the preset angle of the first synchronous door panel 311 and the second synchronous door panel 312 in the hovering state can also be determined according to actual needs.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims. For example, the technical solutions recorded in the aforementioned embodiments can be modified, or some of the technical features therein can be replaced by equivalents, all of which are within the protection of this application.

Claims

1. A rotating shaft structure, characterized in that: include: Two shafts, including a first shaft and a second shaft, wherein the axis of the first shaft and the axis of the second shaft are parallel to each other; Two synchronous door panels include a first synchronous door panel and a second synchronous door panel, the first synchronous door panel and the second synchronous door panel each include a main body and a synchronous part, the synchronous part is connected to the main body, the synchronous part of the first synchronous door panel and the synchronous part of the second synchronous door panel are engaged with each other, the main body and the synchronous part of the first synchronous door panel both rotate synchronously around the axis of the first shaft, the main body and the synchronous part of the second synchronous door panel both rotate synchronously around the axis of the second shaft, the first synchronous door panel and the second synchronous door panel have the same rotation angle and opposite rotation directions.

2. The rotating shaft structure according to claim 1, characterized in that: The main body is provided with a connection hole for connecting with the first body or the second body.

3. The rotating shaft structure according to claim 1, characterized in that: The synchronization part includes a synchronization gear sub-part and a synchronization gear linkage sub-part. The synchronization gear sub-part of the first synchronization door panel and the synchronization gear sub-part of the second synchronization door panel are engaged with each other. One end of the synchronization gear linkage sub-part is connected to the main body, and the other end is connected to the synchronization gear sub-part. The synchronization gear linkage sub-part is used to make the main body and the synchronization gear sub-part rotate synchronously around the axis of the shaft.

4. The rotating shaft structure according to claim 3, characterized in that: The synchronous gear sub-part includes a cylindrical gear, the side surface of the cylindrical gear is provided with teeth, the cylindrical gear is provided with a gear through hole, and the axis of the gear through hole coincides with the axis of the cylindrical gear.

5. The rotating shaft structure according to claim 3, characterized in that: The synchronous gear linkage sub-part includes a half gear, which is fixedly connected to the edge of the main body. The side of the half gear away from the main body is provided with teeth; in one of the synchronous parts, the half gear and the synchronous gear sub-part are meshed with each other.

6. The rotating shaft structure according to claim 1, characterized in that: The first synchronous door panel and the second synchronous door panel also include two sleeves. The two sleeves and the synchronous part are connected to one side of the main body. Through holes are provided in the two sleeves. The through holes of the two sleeves are coaxially arranged and sleeved on the shaft. The two sleeves can rotate around the shaft.

7. The rotating shaft structure according to claim 1, characterized in that: It also includes two damping mechanisms, which are used to make the first synchronous door panel and the second synchronous door panel hover when the angle between them is a preset angle, and provide damping force when the angle between them changes from the preset angle.

8. The rotating shaft structure according to claim 7, characterized in that: The first synchronous door panel and the second synchronous door panel each further include two sleeves, each sleeve including a sleeve body and a cam portion. The two sleeves and the synchronous portion are both connected to one side of the main body. Through holes are provided in the two sleeves. The through holes of the two sleeves are coaxially arranged and sleeved on the shaft body. The two sleeves can rotate around the shaft body. The damping mechanism includes a cam assembly and a spring assembly, and the cam assembly includes a cam group body and two sub-cams. In the second direction, the two sub-cams are connected to the side of the cam group body away from the synchronization part; in the second direction, the sub-cam includes a sub-cam first surface away from the synchronization part, and the cam sub-portion of the first synchronization door panel and the cam sub-portion of the second synchronization door panel are respectively close to the sub-cam first surfaces of the two sub-cams, and the shape of the cam sub-portion matches the sub-cam first surface.

9. The rotating shaft structure according to claim 8, characterized in that: The first surface of the sub-cam is an annular wavy surface.

10. The rotating shaft structure according to claim 1, characterized in that: It also includes an intermediate door panel, which is arranged on at least one side of the two shafts in the third direction, and is used to limit the maximum value or the minimum value of the angle between the first synchronous door panel and the second synchronous door panel.

11. The rotating shaft structure according to claim 10, characterized in that: The maximum value of the angle is 360 degrees, and the minimum value of the angle is 0 degrees.

12. The rotating shaft structure according to claim 10, characterized in that: It also includes two damping mechanisms, both of which are penetrated by the first shaft and the second shaft; The middle door panel includes four sub-middle door panels. In the third direction, two sub-middle door panels are arranged on each side of the two shafts and the two damping mechanisms. The sub-middle door panels include a first part of the door panel body and a second part of the door panel body that are connected to each other. The position of the first part of the door panel body corresponds to the position of at least part of the damping mechanism in the third direction. The position of the second part of the door panel body corresponds to the position of at least part of the shaft and the area between the two shafts in the third direction.

13. An electronic device, characterized in that: The invention comprises the rotating shaft structure according to any one of claims 1 to 12.

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