Foldable electronic equipment, decorative door plate and hinge assembly

Abstract

The invention discloses foldable electronic equipment, a decorative door plate and a hinge assembly. The foldable electronic equipment comprises a machine shell and a rotating shaft assembly. The machine shell is provided with an inner cavity and comprises a first shell body used for forming the inner cavity in an enclosing mode. The rotating shaft assembly is located between the two machine shells and used for rotationally connecting the two machine shells so that the two machine shells can be switched between the folded state and the flattened state. The rotating shaft assembly comprises a decorative door plate capable of being in linkage with the machine shell, the side, facing the machine shell, of the decorative door plate is provided with a door plate lap joint part stretching into the inner cavity, and the decorative door plate is provided with a supporting arm stretching out of the edge of the door plate lap joint part. When the machine shell is in a flattened state, the first shell abuts against the supporting arm and the door plate lap joint part. According to the foldable electronic equipment, the total contact area of the first shell and the decorative door plate is increased, that is, the lap joint amount of the first shell and the decorative door plate is increased, then the shock resistance of the foldable electronic equipment is improved, and meanwhile the folding hand feeling is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic devices, and more particularly, to a foldable electronic device, a decorative door panel, and a hinge assembly. Background Art

[0002] In outward-folding folding phones, the battery cover typically overlaps the decorative door panel in the thickness direction. Due to the limited internal dimensions of the phone, the decorative door panel cannot be made too large, and its portion extending into the phone interior is relatively small. This results in a limited overlap between the edge of the decorative door panel and the battery cover. This not only prevents the battery cover from being effectively supported, but also reduces the overall shock resistance of the phone. Furthermore, due to the small sliding friction area between the decorative door panel and the battery cover, users may experience a rough or sticky feel during the initial rotation of the phone from the flattened state to the folded state, affecting the user experience. Summary of the Invention

[0003] The purpose of this application is to provide a foldable electronic device, a decorative door panel and a hinge assembly, wherein a support arm extends from the edge of the decorative door panel, and the first shell is supported simultaneously by the door panel overlapping portion and the support arm on the decorative door panel, thereby increasing the total contact area between the first shell and the decorative door panel, that is, increasing the overlap amount between the first shell and the decorative door panel, thereby improving the shock resistance of the foldable electronic device and improving the folding feel.

[0004] In a first aspect, the present application provides a foldable electronic device, comprising a housing and a hinge assembly.

[0005] The casing has an inner cavity and comprises a first shell for enclosing and forming the inner cavity.

[0006] The rotating shaft assembly is located between the two housings, and is used to rotatably connect the two housings so that the two housings can be switched between a folded state and an unfolded state.

[0007] The hinge assembly includes a decorative door panel that can be linked with the casing. The decorative door panel has a door panel overlapping portion extending into the inner cavity on the side facing the casing. The decorative door panel is provided with a support arm extending out of the edge of the door panel overlapping portion. When the casing is in a flattened state, the first shell is abutted against the support arm and the door panel overlapping portion.

[0008] The foldable electronic device in the present application has a support arm extending from the edge of the decorative door panel, and the first shell is supported simultaneously by the door panel overlapping portion of the decorative door panel and the support arm, thereby increasing the total contact area between the first shell and the decorative door panel, that is, increasing the overlap amount between the first shell and the decorative door panel, thereby improving the shock resistance of the foldable electronic device and improving the folding feel.

[0009] When the casing is in a flattened state, if the first shell is impacted by a situation such as a mobile phone falling or being hit by a foreign object, the first shell will transfer the impact force to other components such as the hinge assembly through the decorative door panel. Since the overlapping part of the decorative door panel and the support arm support the first shell at the same time, the overlapping amount of the decorative door panel and the first shell is large, and the part of the decorative door panel that contacts the first shell can evenly disperse the impact force, which can avoid the problem of fracture caused by local stress concentration, thereby improving the overall shock resistance of the foldable electronic device.

[0010] In the initial stage of the rotation of the casing from the flattened state to the folded state, the part of the first shell in contact with the decorative door panel will produce relative sliding. Since the overlapping part and the support arm of the decorative door panel are in contact with the first shell at the same time, that is, the overlapping amount of the decorative door panel and the first shell is large, the sliding friction area formed between the decorative door panel and the first shell is increased, and the pressure is reduced, so that the interaction force between the decorative door panel and the first shell is dispersed, and it is not easy to have a sudden increase in sliding friction resistance due to excessive local pressure, thereby avoiding the jamming and shaking of the casing when folded due to the sudden increase in friction resistance, so that the user can feel a smoother folding feel, thereby improving the user experience.

[0011] In a possible design, there are multiple support arms, and the multiple support arms are arranged at intervals along the length direction of the decorative door panel.

[0012] It can form a uniform supporting force on the first shell, so that the first shell is stably supported, and at the same time increase the total contact area between the decorative door panel and the first shell, so that the first shell and the decorative door panel can slide more smoothly when relative to each other.

[0013] In a possible design, on the inner side of the decorative door panel, one end of the support arm facing the decorative door panel extends in the width direction of the decorative door panel.

[0014] This creates more contact area between the support arm and the decorative door panel, thereby increasing the connection strength between the support arm and the decorative door panel. This makes the support arm more reliably mounted on the decorative door panel and less likely to break at the connection. This also provides greater stability in the support arm's support of the first housing, thereby improving the overall shock resistance of the phone.

[0015] In a possible design, the support arm is provided with a first sliding block protruding from the surface, and when the housing is in a flattened state, the first shell is abutted against the first sliding block and the overlapping portion of the door panel.

[0016] The first slider is slidably connected to the first shell, thereby reducing the sliding friction resistance between the first shell and the decorative door panel, thereby further improving the smoothness when folding the shell, thereby enhancing the user's folding feel.

[0017] In one possible design, the first shell has a shell overlapping portion on the side facing the support arm, and the first shell is provided with a second slider arranged adjacent to the shell overlapping portion; from the second slider to the shell overlapping portion, the bottom surface of the second slider gradually approaches the first shell.

[0018] During the initial stage of rotation of the housing from the flattened position to the folded position, the first and second sliders are slidably connected, thereby reducing the sliding friction between the first housing and the decorative door panel. Alternatively, when the housing is rotated close to the folded position, the second slider can slide on the overlapping portion of the door panel, thereby reducing the sliding friction between the first housing and the decorative door panel. In addition, the bottom surface of the second slider gradually approaches the first housing, i.e., the bottom surface of the second slider exhibits an inclined or curved surface. This allows for smoother sliding of the second slider against components on the decorative door panel when the housing is rotated from the flattened position to the folded position.

[0019] In a possible design, there are multiple second sliders, and the multiple second sliders are arranged at intervals along the length direction of the first shell.

[0020] Multiple second sliders contact the components on the decorative door panel, thereby increasing the total contact area between the decorative door panel and the first shell, making the first shell and the decorative door panel smoother when sliding relative to each other, thereby improving the user's feel when folding the casing.

[0021] In a possible design, the second slider is arranged in opposition to the first slider. When the casing is in a flattened state, the second slider abuts against the first slider, and the overlapping portion of the shell abuts against the overlapping portion of the door panel.

[0022] In a possible design, the top surface of the first slider is shaped like the bottom surface of the second slider.

[0023] The top surface of the first slider can be matched with the bottom surface of the second slider, and when the housing is in a flat state, the first slider can fully contact the second slider, so that the first slider can stably support the second slider.

[0024] In one possible design, the second slider is staggered with the first slider. When the casing is in a flattened state, the first slider is abutted against the first shell, and the overlapping portion of the shell is abutted against the overlapping portion of the door panel. When the casing rotates from the flattened state to the folded state, the second slider can slide on the overlapping portion of the door panel.

[0025] In a possible design, the top surface of the first sliding block is a plane.

[0026] The top surface of the first slider can be matched with the surface of the first shell, and when the housing is in a flattened state, the first slider can fully contact the first shell, so that the first slider can stably support the first shell.

[0027] In a possible design, the support arm is provided with a mounting groove, and the first sliding block is fixed in the mounting groove.

[0028] In a possible design, the first sliding block is made of a self-lubricating material; or a wear-resistant layer is provided on the top surface of the first sliding block.

[0029] This can reduce the frictional resistance of the first slider when sliding on the first housing, thereby further improving the smoothness of folding the housing and enhancing the user's folding experience. In addition, the first slider is directly made of a self-lubricating material or has a wear-resistant layer on its top surface, which eliminates the need for applying a solid lubricant and facilitates assembly.

[0030] In one possible design, the second sliding block is made of a self-lubricating material;

[0031] Alternatively, the bottom surface of the second sliding block is provided with a wear-resistant layer.

[0032] This reduces frictional resistance when the second slider slides on the first slider or the overlapping portion of the housing, further enhancing the smoothness of folding the housing and improving the user's folding experience. Furthermore, by constructing the second slider directly from a self-lubricating material or providing a wear-resistant layer on its underside, the application of a solid lubricant can be eliminated, further facilitating assembly.

[0033] In a possible design, the support arm and the decorative door panel are an integrally formed structure.

[0034] This increases the connection strength between the support arm and the decorative door panel, and provides better earthquake resistance.

[0035] In a possible design, the support arm and the decorative door panel are split structures, and the support arm is installed on the decorative door panel.

[0036] In a possible design, one of the support arm and the decorative door panel is provided with a plug-in column, and the other is provided with a plug-in hole. The plug-in column and the plug-in hole are connected in a socket-type manner to fix the support arm to the decorative door panel.

[0037] This allows the support arm and the decorative door panel to form a structural connection relationship, which has greater connection strength.

[0038] In a possible design, the cross-sectional area of the plug-in post gradually increases from the root to the end of the plug-in post, and the hole wall of the plug-in hole is shaped similarly to the outer peripheral wall of the plug-in post.

[0039] Such a design makes the end of the plug-in column large and the root small. If the plug-in hole is opened on the support arm, the plug-in column can tightly constrain the support arm to the surface of the decorative door panel.

[0040] In a possible design, the plug hole and the plug post are interference fit.

[0041] In a second aspect, the present application also provides a decorative door panel for use in foldable electronic devices, wherein one side of the decorative door panel has a door panel overlap portion, and the decorative door panel is provided with a support arm extending out from the edge of the door panel overlap portion.

[0042] The decorative door panel in this application, when applied to a foldable electronic device, can improve the shock resistance of the foldable electronic device and also improve the folding feel.

[0043] In a possible design, there are multiple support arms, and the multiple support arms are arranged at intervals along the length direction of the decorative door panel.

[0044] In a possible design, on the inner side of the decorative door panel, one end of the support arm facing the decorative door panel extends in the width direction of the decorative door panel.

[0045] In a possible design, the support arm is provided with a first sliding block protruding from the surface.

[0046] In a possible design, the first sliding block is made of a self-lubricating material; or a wear-resistant layer is provided on the top surface of the first sliding block.

[0047] In a possible design, the support arm and the decorative door panel are an integrally formed structure.

[0048] In a possible design, the support arm and the decorative door panel are split structures, and the support arm is installed on the decorative door panel.

[0049] In a possible design, one of the support arm and the decorative door panel is provided with a plug-in column, and the other is provided with a plug-in hole. The plug-in column and the plug-in hole are connected in a socket-type manner to fix the support arm to the decorative door panel.

[0050] In a possible design, the cross-sectional area of the plug-in post gradually increases from the root to the end of the plug-in post, and the hole wall of the plug-in hole is shaped similarly to the outer peripheral wall of the plug-in post.

[0051] In a third aspect, the present application also provides a hinge assembly comprising the above-mentioned decorative door panel.

[0052] Since the hinge assembly includes the above-mentioned decorative door panel, it also has the corresponding advantages of the decorative door panel, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1It is a partial cross-sectional view of an outward-folding foldable mobile phone in the related art;

[0054] Figure 2 is a schematic diagram of a foldable mobile phone provided in an embodiment of the present application in a flattened state;

[0055] Figure 3 is a schematic diagram of a foldable mobile phone provided by an embodiment of the present application in a folded state;

[0056] Figure 4 yes Figure 2 Cross-sectional view of the middle BB;

[0057] Figure 5 This is a partial exploded view of a foldable mobile phone provided in an embodiment of the present application;

[0058] Figure 6 is a partial schematic diagram of a rotating shaft assembly provided in an embodiment of the present application;

[0059] Figure 7 is a partial exploded view of the shaft assembly provided in an embodiment of the present application;

[0060] Figure 8 is a schematic diagram of a decorative door panel and an intermediate door panel provided in an embodiment of the present application;

[0061] Figure 9 yes Figure 8 A schematic diagram of another perspective of the decorative door panel and the middle door panel;

[0062] Figure 10 yes Figure 9 A partial enlarged view of the decorative door panel and the middle door panel;

[0063] Figure 11 yes Figure 8 A partial enlarged view of the decorative door panel and the middle door panel;

[0064] Figure 12 is an exploded schematic diagram of a first slider and a support arm provided in an embodiment of the present application;

[0065] Figure 13 This is an exploded schematic diagram of an example of a support arm and a decorative door panel provided in an embodiment of the present application;

[0066] Figure 14 is an exploded schematic diagram of another example of a support arm and a decorative door panel provided in an embodiment of the present application;

[0067] Figure 15 is a cross-sectional view of a support arm and a decorative door panel provided in an embodiment of the present application;

[0068] Figure 16 is a schematic diagram of a decorative door panel provided in an embodiment of the present application;

[0069] Figure 17 yes Figure 16 A partial enlarged view of the decorative door panel;

[0070] Figure 18 This is an exploded schematic diagram of an example of a decorative door panel and a first shell provided in an embodiment of the present application;

[0071] Figure 19 yes Figure 18 Schematic diagram of the assembly of the decorative door panel and the first shell;

[0072] Figure 20 is a cross-sectional view of the housing in a flattened state when the second slider and the first slider provided by an embodiment of the present application are aligned;

[0073] Figure 21 yes Figure 20 A cross-sectional view of the initial stage of rotation of the housing from the flat state to the folded state;

[0074] Figure 22 yes Figure 20 A cross-sectional view of the housing when it is rotated to a nearly folded state;

[0075] Figure 23 is an exploded schematic diagram of another example of a decorative door panel and a first housing provided in an embodiment of the present application;

[0076] Figure 24 yes Figure 23 Schematic diagram of the assembly of the decorative door panel and the first shell;

[0077] Figure 25 is a cross-sectional view of the housing in a flattened state when the second slider and the first slider provided by an embodiment of the present application are arranged in a staggered manner;

[0078] Figure 26 yes Figure 25 A cross-sectional view of the initial stage of rotation of the housing from the flat state to the folded state;

[0079] Figure 27 yes Figure 25 A cross-sectional view of the housing when it is rotated to a nearly folded state.

[0080] Reference numerals:

[0081] 10. Casing; 11. First housing; 111. Housing overlap portion; 112. Second slider; 12. Second housing; 13. Inner cavity;

[0082] 20. Rotating shaft assembly; 21. Middle door panel; 22. Wedge block; 221. Guide groove; 23. Main swing arm; 24. Secondary swing arm; 25. Support plate; 26. Upper base; 27. Lower base;

[0083] 30. Decorative door panel; 31. Door panel overlap; 32. Support arm; 321. Insertion hole; 322. First slider; 323. Mounting slot; 33. Insertion column; 34. Fixing position; 35. Guide column;

[0084] 40. Display screen. DETAILED DESCRIPTION

[0085] The following is an illustrative introduction to the relevant contents that may be involved in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments.

[0086] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0087] In the description of this application, it should be understood that the terms "upper", "lower", "side", "inside", "outside", "top", "bottom", etc. indicate orientations or positional relationships based on the installation, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0088] It should also be noted that, in the embodiments of the present application, the same reference numerals are used to represent the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or parts as an example. It should be understood that the reference numerals are also applicable to other identical parts or parts.

[0089] In the description of this application, it should be noted that the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0090] Flexible screens, with their bendable properties, are currently being used in foldable electronic devices such as mobile phones, tablets, wristbands, game consoles, and wearable devices. The displays of these electronic devices can be increased in size without increasing their bulk, while also maintaining a high screen-to-body ratio and clarity. For example, a foldable phone, when folded, can be the size of a traditional phone, making it easy to carry and store. When unfolded, it can have the display size of a tablet, providing a larger display area and enhancing the user's viewing and operating experience. These features have made foldable electronic devices very popular with consumers.

[0091] Foldable phones are categorized as inward-folding and outward-folding. In outward-folding phones, the battery cover of the casing typically overlaps with the decorative door panel in the thickness direction. Figure 1 It is a partial cross-sectional view of an outward-folding folding mobile phone in the related art, such as Figure 1 As shown, the battery cover of the housing 10 is located at the top, and the decorative door panel 30 is located at the bottom. In the overlapping area of the projections of the battery cover of the housing 10 and the decorative door panel 30, that is, Figure 1 At the position indicated by A, there is an overlapping connection between the battery cover and the decorative door panel 30. Due to the limited internal space of the phone, the decorative door panel 30 cannot be made too large, and its portion extending into the phone is relatively small. As a result, the overlap between the edge of the decorative door panel 30 and the battery cover is limited, which not only prevents the battery cover from being effectively supported but also reduces the overall shock resistance of the phone. Furthermore, due to the small overlap between the decorative door panel 30 and the battery cover, the sliding friction area between the two is small. Therefore, during the initial stage of the phone's rotation from the flattened state to the folded state, the relative sliding between the decorative door panel 30 and the battery cover is not smooth. This causes the user to experience a rough or sticky feel during the folding process, affecting the user experience.

[0092] In view of this, in order to solve the above-mentioned technical problems, the present application provides a foldable electronic device, a decorative door panel and a hinge assembly, wherein a support arm extends from the edge of the decorative door panel, and the first shell is supported simultaneously by the door panel overlapping portion and the support arm on the decorative door panel, thereby increasing the total contact area between the first shell and the decorative door panel, that is, increasing the overlap amount between the first shell and the decorative door panel, thereby improving the shock resistance of the foldable electronic device, and also improving the folding feel.

[0093] The embodiment of the present application first provides a foldable electronic device, which can be outward-folding or inward-folding, including but not limited to a foldable mobile phone, a foldable tablet computer, a foldable game console, a foldable e-reader, a foldable wearable device, etc., and can also be other foldable electronic devices with a foldable function and requiring an increased overlap between the decorative door panel 30 and the casing 10.

[0094] In order to more conveniently explain the foldable electronic device provided in the embodiment of the present application, as an example rather than a limitation, the following will take the foldable electronic device that is an outward-folding foldable mobile phone as an example to explain in detail the technical solution of the present application.

[0095] The foldable mobile phone provided in the embodiments of the present application will now be described in detail with reference to the accompanying drawings.

[0096] Figure 2 This is a schematic diagram of the foldable mobile phone provided in an embodiment of the present application in a flattened state. Figure 3 This is a schematic diagram of the foldable mobile phone provided in an embodiment of the present application in a folded state.

[0097] like Figure 2-Figure 3 As shown, an embodiment of the present application provides a foldable mobile phone, which includes a housing 10, a hinge assembly 20, and a display screen 40. There are two housings 10, arranged side by side. The hinge assembly 20 is connected between the two housings 10 to rotatably connect the two housings 10, allowing the two housings 10 to switch between a folded state and a flattened state. The display screen 40 is disposed above the housing 10 and the hinge assembly 20.

[0098] The housing 10 is used to support the display screen 40 and protect the internal components of the foldable phone. The display screen 40 is fixedly connected to the housing 10 at both ends. The housing 10 can be a hard shell, so that the housing 10 can firmly support the two ends of the display screen 40.

[0099] The hinge assembly 20 can deform as the housings 10 are folded or unfolded, and prevents the two housings 10 from separating. Specifically, the two opposing sides of the hinge assembly 20 are connected to the housings 10. The hinge assembly 20 utilizes its own rotatable properties to allow one housing 10 to flip relative to the other housing 10, so that the two housings 10 are folded, flattened, or in between. This allows the foldable phone provided in this embodiment of the application to have multiple modes, meeting the user's usage needs in different scenarios.

[0100] The two housings 10 can be relatively flat, for example, Figure 2 As shown, an angle of 180 degrees is formed between the two housings 10, so that the foldable mobile phone provided in the embodiment of the present application can achieve a large-screen display, can provide users with richer information, and bring users a better user experience.

[0101] The two housings 10 can also be folded relative to each other, for example, forming an angle of 60-90 degrees between the two housings 10, so that the foldable phone can be switched to a desktop usage mode. In this case, one housing 10 and its display screen 40 can face the user, while the other housing 10 and its display screen 40 can be placed on a storage table, desk, or other surface. The housing 10 acts like a counterweight base, ensuring the foldable phone is stable.

[0102] The two housings 10 can be folded together until they are close to each other, for example Figure 3 As shown, the two housings 10 can fit together, so that the foldable phone is switched to a closed mode. At this time, the foldable phone has a smaller volume, making it easier for users to store and carry it; or, half of the display screen 40 is used to display information and provide user operation at the same time.

[0103] It can be understood that when the user holds a foldable phone, the location of the earpiece module of the foldable phone can be defined as the top of the foldable phone, the location of the microphone module of the foldable phone can be defined as the bottom of the foldable phone, and the two sides of the foldable phone held by the user's left and right hands can be defined as the left and right sides of the foldable phone.

[0104] In some embodiments of the present application, the two housings 10 are arranged one above the other, so that the foldable mobile phone can be folded in half.

[0105] In other embodiments of the present application, the two housings 10 are arranged left and right, so that the foldable mobile phone can be folded left and right, for example. Figure 3 The situation shown.

[0106] Optionally, the display screen 40 may be a flexible screen that is foldable as a whole, or the display screen 40 may be a combination of a foldable flexible screen in the middle area and rigid screens at both ends, which is not limited in this application.

[0107] Optionally, the display screen 40 may be an organic light emitting diode display screen, an active matrix organic light emitting diode display screen, an active matrix organic light emitting diode display screen, a mini light emitting diode display screen, a micro light emitting diode display screen, a micro organic light emitting diode display screen, a quantum dot light emitting diode display screen, or the like.

[0108] Optionally, the hinge assembly 20 is also used to support the display screen 40 to prevent the display screen 40 from collapsing. Specifically, the hinge assembly 20 is provided with a display screen 40 support assembly, which can rise to support the display screen 40 as the hinge assembly 20 is flattened, and can also fall to make room for the display screen 40 as the hinge assembly 20 is folded.

[0109] Optionally, the foldable phone may further include multiple modules, which may be housed inside the housing 10. The multiple modules of the foldable phone may include, but are not limited to, a motherboard, a processor, a memory, a battery, a camera module, an earpiece module, a speaker module, a microphone module, an antenna module, a sensor module, etc. This application does not specifically limit the number, type, location, etc. of the modules of the foldable phone.

[0110] To facilitate the description of the following embodiments, an XYZ coordinate system is established for the foldable phone. Specifically, the extension direction of the rotation axis of the foldable phone is defined as the Y direction, the thickness direction of the foldable phone is defined as the Z direction, and the direction perpendicular to both the Y and Z directions is defined as the X direction.

[0111] The following is a detailed introduction to the technical solution of the decorative door panel 30 used in the foldable mobile phone in the embodiment of the present application.

[0112] Figure 4 yes Figure 2 Cross-sectional view of the BB.

[0113] like Figure 4 As shown, and as Figure 2 As shown, the housing 10 includes a first shell 11 and a second shell 12. The first shell 11 and the second shell 12 enclose an inner cavity 13, which is used to accommodate the motherboard, battery, camera module, earpiece module, speaker module, etc. The first shell 11 can be a battery cover, and the second shell 12 can be a middle frame. The display screen 40 is arranged on the side of the second shell 12 facing away from the first shell 11.

[0114] The hinge assembly 20 is located between the two housings 10 . The hinge assembly 20 is used to rotatably connect the two housings 10 so that the two housings 10 can switch between a folded state and an unfolded state.

[0115] Figure 5 This is a partial exploded view of the foldable mobile phone provided in an embodiment of the present application. Figure 6 It is a partial schematic diagram of the shaft assembly 20 provided in an embodiment of the present application. Figure 7 It is a partial exploded view of the shaft assembly 20 provided in an embodiment of the present application.

[0116] like Figure 5-Figure 7 As shown, the hinge assembly 20 includes a decorative door panel 30 that can be linked to the housing 10, and an intermediate door panel 21 located between the two decorative door panels 30. The intermediate door panel 21 does not move with the housing 10. In addition to the decorative door panels 30 and the intermediate door panels 21, the hinge assembly 20 also includes a base, a wedge block 22 mounted on the base, a main swing arm 23, an auxiliary swing arm 24, a support plate 25, and other components.

[0117] The base is composed of an upper base 26 and a lower base 27, which are joined to form a plurality of arcuate slots. The main swing arm 23 and the auxiliary swing arm 24 are rotatably connected to the base via the arcuate slots. The wedge block 22 is provided with a plurality of strip-shaped slots. The main swing arm 23 and the auxiliary swing arm 24 are also slidably connected within the strip-shaped slots. Thus, the wedge block 22 is rotatably connected to the base via the main swing arm 23 and the auxiliary swing arm 24. The wedge block 22 is connected to the second shell 12 of the housing 10, enabling the housing 10 to be rotatably connected to the base via the wedge block 22.

[0118] Figure 10 It is a partial enlarged view of the inner side of the decorative door panel 30 and the middle door panel 21, as shown in FIG. Figure 10 As shown, the decorative door panel 30 is provided with a bolt fixing position 34, which is fixedly connected to the auxiliary swing arm 24 by bolts, so that the decorative door panel 30 can be driven by the auxiliary swing arm 24. Figure 7 and Figure 10 As shown, guide grooves 221 are provided on the outer sides of the two ends of the wedge block 22, and guide columns 35 are provided at both ends of the decorative door panel 30 to slide with the guide grooves 221, thereby constraining the rotation trajectory of the decorative door panel 30 through the guide columns 35 and the guide grooves 221.

[0119] In summary, through the above design, the casing 10 and the decorative door panel 30 can be linked, and since the rotation trajectories of the casing 10 and the decorative door panel 30 are different, when the user folds the casing 10, the casing 10 and the decorative door panel 30 will also slide relative to each other. In the embodiment of the present application, this is reflected in the relative sliding between the first shell 11 and the support arm 32, and the relative sliding between the first shell 11 and the door panel overlap portion 31. For more detailed description, please refer to the following text.

[0120] For example Figure 2 and Figure 4 As shown, when the foldable phone is in Figure 2 In the flattened configuration shown, on the back of the foldable phone, i.e., on the side facing away from the display screen 40, the area between the two first housings 11 is comprised of two decorative door panels 30 and a centrally located intermediate door panel 21. These decorative door panels 30 and intermediate door panel 21 are intended to conceal the internal components of the hinge assembly 20, providing a decorative effect that enhances the phone's aesthetics and also provide protection to improve the reliability of the hinge assembly 20. The decorative door panel 30, on the side facing the housing 10, has a door panel overlap 31 that extends into the inner cavity 13. The decorative door panel 30 is also provided with a support arm 32 that extends from the edge of the door panel overlap 31. When the housing 10 is in the flattened configuration, the first housing 11 abuts against the support arm 32 and the door panel overlap 31.

[0121] In the foldable phone of the present embodiment, a support arm 32 extends from the edge of the decorative door panel 30. The first housing 11 is supported simultaneously by the overlapping portion 31 of the decorative door panel 30 and the support arm 32. This increases the total contact area between the first housing 11 and the decorative door panel 30, thereby increasing the overlap between the first housing 11 and the decorative door panel 30. This in turn improves the shock resistance of the foldable phone and enhances the feel of folding. Understanding this advantage will be explained in detail below.

[0122] When the casing 10 is in a flattened state, if the first shell 11 is impacted by a situation such as the mobile phone falling or being hit by foreign objects, the first shell 11 will transfer the impact force to other components such as the hinge assembly 20 through the decorative door panel 30. Since the door panel overlap portion 31 and the support arm 32 of the decorative door panel 30 support the first shell 11 at the same time, the overlap amount of the decorative door panel 30 and the first shell 11 is large, and the part of the decorative door panel 30 that contacts the first shell 11 can evenly disperse the impact force, which can avoid the problem of fracture caused by local stress concentration, thereby improving the overall shock resistance of the foldable mobile phone.

[0123] In the initial stage of the rotation of the casing 10 from the flattened state to the folded state, the part where the first shell 11 contacts the decorative door panel 30 will produce relative sliding. Since the door panel overlap portion 31 and the support arm 32 of the decorative door panel 30 are in contact with the first shell 11 at the same time, that is, the overlap amount of the decorative door panel 30 and the first shell 11 is large, the sliding friction area formed between the decorative door panel 30 and the first shell 11 is increased and the pressure is reduced, so that the interaction force between the decorative door panel 30 and the first shell 11 is dispersed, and it is not easy to have a sudden increase in sliding friction resistance due to excessive local pressure, thereby avoiding the jamming and shaking of the casing 10 when folded due to the sudden increase in friction resistance, so that the user can feel a smoother folding feel, thereby improving the user experience.

[0124] Optionally, the number of the supporting arms 32 on the decorative door panel 30 may be one or more.

[0125] Figure 8 It is a schematic diagram of the decorative door panel 30 and the middle door panel 21 provided in an embodiment of the present application. Figure 9 yes Figure 8 Schematic diagram of the decorative door panel 30 and the middle door panel 21 from another perspective.

[0126] like Figure 8-Figure 9 As shown, in an embodiment provided in the present application, there are multiple support arms 32 , and the multiple support arms 32 are arranged at intervals along the length direction of the decorative door panel 30 .

[0127] The length direction of the decorative door panel 30 can be understood as Figure 8 in the Y direction.

[0128] In this embodiment, by arranging multiple support arms 32 at intervals, a uniform supporting force can be formed on the first shell 11, so that the first shell 11 is stably supported. At the same time, multiple support arms 32 are in contact with the first shell 11, thereby increasing the total contact area between the decorative door panel 30 and the first shell 11, making the first shell 11 and the decorative door panel 30 smoother when sliding relative to each other, thereby improving the user's feel when folding the casing 10.

[0129] Figure 10 yes Figure 9 A partial enlarged view of the decorative door panel 30 and the middle door panel 21.

[0130] like Figure 10 As shown, in one embodiment provided in the present application, on the inner side of the decorative door panel 30 , the support arm 32 extends toward one end of the decorative door panel 30 in the width direction of the decorative door panel 30 .

[0131] The inner side of the decorative door panel 30 can be understood as the side of the decorative door panel 30 facing away from the external environment, and the width direction of the decorative door panel 30 can be understood as the side of the decorative door panel 30 facing away from the external environment. Figure 10 The X direction in .

[0132] In this embodiment, the support arm 32 extends in the width direction of the decorative door panel 30, which increases the contact area between the support arm 32 and the decorative door panel 30. This improves the connection strength between the support arm 32 and the decorative door panel 30, making the installation of the support arm 32 on the decorative door panel 30 more reliable and less likely to break at the connection of the support arm 32. This makes the support arm 32 more stable in supporting the first housing 11, thereby improving the overall shock resistance of the mobile phone.

[0133] Figure 11 yes Figure 8 A partial enlarged view of the decorative door panel 30 and the middle door panel 21.

[0134] like Figure 11 As shown, in an embodiment provided in the present application, the support arm 32 is provided with a first slider 322 protruding from the surface. When the housing 10 is in a flattened state, the first shell 11 is in contact with the first slider 322 and the door panel overlap portion 31.

[0135] As mentioned above, when the casing 10 is in the initial stage of rotating from the flattened state to the folded state, the part where the first shell 11 contacts the decorative door panel 30 will slide relative to each other. A first slider 322 is provided on the support arm 32, which is slidably connected to the first shell 11 through the first slider 322, thereby reducing the sliding friction resistance between the first shell 11 and the decorative door panel 30, thereby further improving the smoothness when folding the casing 10, thereby enhancing the user's folding feel.

[0136] In order to further reduce the sliding friction resistance between the first shell 11 and the decorative door panel 30 , the sliding contact end surface of the first slider 322 can be lubricated. For example, a solid lubricant can be applied to the contact point between the first slider 322 and the first shell 11 .

[0137] In addition to applying solid lubricant, in one embodiment provided in the present application, the first slider 322 is made of a self-lubricating material.

[0138] The self-lubricating material may be engineering plastics, such as polytetrafluoroethylene (PTFE), polyformaldehyde (POM), polycarbonate (PC), polyamide (PA), and the like.

[0139] The self-lubricating material used in this embodiment can reduce the friction resistance when the first slider 322 slides on the first shell 11, thereby further improving the smoothness when the housing 10 is folded, thereby enhancing the user's folding feel.

[0140] In addition, in this embodiment, the first sliding block 322 is directly made of self-lubricating material, which can eliminate the step of applying solid lubricant, making the assembly process more convenient.

[0141] In addition to the above-mentioned lubrication designs, a wear-resistant layer may be provided only on the surface of the first slider 322 . That is, in an embodiment provided in the present application, a wear-resistant layer is provided on the top surface of the first slider 322 .

[0142] Optionally, the wear-resistant layer may be a diamond-like carbon (DLC) coating, which has wear resistance and self-lubricating properties and can be deposited by physical vapor deposition (PVD) and chemical vapor deposition (CVD).

[0143] Optionally, the wear-resistant layer can also be formed by pasting slices of materials such as polytetrafluoroethylene, polyoxymethylene, polycarbonate, and polyamide.

[0144] Optionally, the first slider 322 and the support arm 32 may be an integrally formed structure.

[0145] Specifically, the support arm 32 with the first slider 322 can be directly formed through 3D printing technology; or, the outline of the first slider 322 can be engraved on the blank of the support arm 32, which can be specifically engraved by laser micro-engraving technology; or, it can also be through injection molding technology, specifically, preparing a mold with the contour features of the first slider 322 and the support arm 32 in advance, injecting molten injection molding base material into the mold, and obtaining the support arm 32 with the first slider 322 after solidification and demolding.

[0146] Optionally, the first slider 322 and the support arm 32 may also be a split structure, and the first slider 322 may be installed on the support arm 32 .

[0147] Specifically, the first slider 322 and the support arm 32 can be bonded by an adhesive; or, the first slider 322 and the support arm 32 can be locked by screws; or, the first slider 322 and the support arm 32 can be snapped together by a snap-fit structure; or, a groove can be opened on the support arm 32 to fix the support arm 32 in the groove. For more detailed description, please refer to the embodiments below.

[0148] Figure 12 It is a schematic exploded view of the first slider 322 and the support arm 32 provided in an embodiment of the present application.

[0149] like Figure 12 As shown, in an embodiment provided in the present application, the support arm 32 is provided with a mounting groove 323 , and the first sliding block 322 is fixed in the mounting groove 323 .

[0150] Optionally, the first slider 322 is interference fit with the mounting groove 323, so that the first slider 322 can be directly embedded and fixed in the mounting groove 323; or, there is a gap between the first slider 322 and the groove wall of the mounting groove 323, and adhesive is injected into the gap to bond the first slider 322 to the mounting groove 323.

[0151] In this embodiment, the first slider 322 and the support arm 32 are designed as a split structure, and the two are fixed together by bonding, embedding and other installation methods. In this way, the first slider 322 and the support arm 32 can be made of different materials. For example, the main function of the support arm 32 is to provide supporting strength for the first slider 322 and the connection strength with the decorative door panel 30, so a material with greater strength can be used, and the main function of the first slider 322 is to reduce the friction resistance with the first shell 11, so a material with better lubrication and wear resistance can be used, so that the support arm 32 and the first slider 322 can better perform their respective functions.

[0152] In one embodiment provided in the present application, the support arm 32 and the decorative door panel 30 are an integrally formed structure.

[0153] Optionally, the decorative door panel 30 with the support arm 32 can be directly formed by 3D printing technology; or, the outline of the support arm 32 can be carved on the blank of the decorative door panel 30, specifically by laser micro-engraving technology; or, it can be formed by injection molding technology, specifically, a mold with the contour features of the support arm 32 and the decorative door panel 30 is processed in advance, and the molten injection molding base material is injected into the mold, and the decorative door panel 30 with the support arm 32 is obtained after curing and demolding.

[0154] In an embodiment provided in the present application, the support arm 32 and the decorative door panel 30 are split structures, and the support arm 32 is installed on the decorative door panel 30 .

[0155] Optionally, the support arm 32 and the decorative door panel 30 can be bonded by an adhesive; or, the support arm 32 and the decorative door panel 30 are locked by screws; or, the support arm 32 and the decorative door panel 30 are snap-fitted by a snap-fit structure; or, the support arm 32 and the decorative door panel 30 are plugged into a socket structure. For more detailed description, please refer to the embodiments below.

[0156] Figure 13 It is a schematic diagram of an exploded view of an example of a support arm 32 and a decorative door panel 30 provided in an embodiment of the present application.

[0157] like Figure 13 As shown, in an embodiment provided in the present application, a plug-in column 33 is provided on the decorative door panel 30, and a plug-in hole 321 is provided on the support arm 32. The plug-in column 33 and the plug-in hole 321 are connected in a socket manner to fix the support arm 32 to the decorative door panel 30.

[0158] Of course, the plug-in column 33 and the plug-in hole 321 can also be provided with a base interchangeably, such as in the following embodiment.

[0159] Figure 14 It is a schematic diagram of another example of an exploded view of the support arm 32 and the decorative door panel 30 provided in an embodiment of the present application.

[0160] like Figure 14 As shown, in an embodiment provided in the present application, a plug-in column 33 is provided on the support arm 32, and a plug-in hole 321 is provided on the decorative door panel 30. The plug-in column 33 and the plug-in hole 321 are connected in a socket manner to fix the support arm 32 to the decorative door panel 30.

[0161] In an embodiment provided in the present application, the plug hole 321 and the plug post 33 are interference fit, so that the hole wall of the plug hole 321 fastens the plug post 33 .

[0162] Figure 15 It is a cross-sectional view of the support arm 32 and the decorative door panel 30 provided in an embodiment of the present application.

[0163] like Figure 15 As shown, in an embodiment provided in the present application, the cross-sectional area of the plug-in post 33 gradually increases from the root to the end thereof, and the hole wall of the plug-in hole 321 is shaped similarly to the outer peripheral wall of the plug-in post 33 .

[0164] Among them, the direction from the root to the end of the plug-in column 33 can be understood as Figure 15 The Z direction is the direction in which the arrow points downward.

[0165] In this embodiment, the plug-in column 33 is designed to have a large end and a small root. If the plug-in hole 321 is opened on the support arm 32 , the plug-in column 33 can tightly constrain the support arm 32 to the surface of the decorative door panel 30 .

[0166] Assuming that the plug-in column 33 is set on the decorative door panel 30 and the plug-in hole 321 is opened on the support arm 32, when assembling the support arm 32 and the decorative door panel 30, there are two ways to implement it: one is that the plug-in column 33 is made of a material that can be slightly elastically deformed, and the plug-in hole 321 of the support arm 32 is aligned with the plug-in column 33 and then the support arm 32 is knocked, so that the orifice of the plug-in hole 321 squeezes and deforms the plug-in column 33, thereby realizing the assembly connection between the support arm 32 and the decorative door panel 30; the other is to place a mold for forming the support arm 32 on the surface of the decorative door panel 30, and the plug-in column 33 is located in the mold, and the molten injection molding base material is injected into the mold. After solidification and demolding, the support arm 32 is obtained by being sleeved on the plug-in column 33, thereby realizing the assembly connection between the support arm 32 and the decorative door panel 30.

[0167] Figure 16 It is a schematic diagram of the decorative door panel 30 provided in an embodiment of the present application. Figure 17 yes Figure 16 A partial enlarged view of the decorative door panel 30 in FIG.

[0168] like Figure 16-17 As shown, in an embodiment provided in the present application, the first shell 11 has a shell overlapping portion 111 on the side facing the support arm 32, and the first shell 11 is provided with a second slider 112 arranged adjacent to the shell overlapping portion 111; from the second slider 112 to the shell overlapping portion 111, the bottom surface of the second slider 112 gradually approaches the first shell 11.

[0169] The direction from the second slider 112 to the housing overlap portion 111 can be understood as Figure 17 The X direction is the direction in which the arrow points diagonally upward.

[0170] In this embodiment, the second slider 112 provided on the first housing 11 is primarily configured to abut against the first slider 322. During the initial stage of rotation of the housing 10 from the flattened position to the folded position, the first slider 322 and the second slider 112 are slidably connected, thereby reducing the sliding friction between the first housing 11 and the decorative door panel 30. Alternatively, when the housing 10 is rotated to a position close to the folded position, the second slider 112 can slide on the door panel overlap 31, thereby reducing the sliding friction between the first housing 11 and the decorative door panel 30. In either case, the purpose is to further enhance the smoothness of folding the housing 10, improving the user's folding experience. For a more detailed description of this folding process, please refer to the embodiments described below.

[0171] In addition, when the housing 10 is rotated from the flattened state to the folded state, the second slider 112 also moves therewith. In order to avoid the second slider 112 from interfering with the components on the decorative door panel 30, the bottom surface of the second slider 112 gradually approaches the first shell 11 from the second slider 112 to the shell overlapping portion 111, that is, the bottom surface of the second slider 112 presents the characteristics of an inclined surface or an arc-shaped surface. In this way, when the housing 10 is rotated from the flattened state to the folded state, the second slider 112 can slide in contact with the components on the decorative door panel 30 more smoothly.

[0172] Optionally, the first shell 11 may be made of a ceramic material having high strength, high temperature resistance, corrosion resistance, wear resistance, etc.

[0173] Optionally, the first shell 11 may also be made of glass fiber, carbon fiber, etc., which has the advantages of being lightweight, strong, and not easy to deform.

[0174] Optionally, the second housing 12 and the decorative door panel 30 may also be made of the aforementioned materials such as ceramic, glass fiber, carbon fiber, etc. Alternatively, engineering plastics such as PTFE, POM, PC, and PA may be used.

[0175] Optionally, the first shell 11 and the second slider 112 can be bonded by an adhesive; or, the first shell 11 and the second slider 112 are locked by screws; or, the first shell 11 and the second slider 112 are snap-fitted by a snap-fit structure; or, a groove is opened on the first shell 11, and the second slider 112 is embedded and fixed in the groove.

[0176] In an embodiment provided in the present application, the second slider 112 is also made of a self-lubricating material.

[0177] Optionally, the self-lubricating material used by the second slider 112 may also be PTFE, POM, PC, PA, etc.

[0178] The self-lubricating material used in the second slider 112 of this embodiment can reduce the friction resistance when the second slider 112 slides on the first slider 322 or the shell overlapping portion 111, thereby further improving the smoothness when folding the shell 10 and enhancing the user's folding feel.

[0179] In addition, in this embodiment, the second sliding block 112 is directly made of self-lubricating material, which can eliminate the step of applying solid lubricant, making the assembly process more convenient.

[0180] Optionally, the material of the first shell 11 can also be the above-mentioned engineering plastics, such as PTFE, POM, PC, PA, etc., so that the material of the first shell 11 and the second slider 112 is the same, so that the second slider 112 can be connected to the first shell 11 as one through an integrated molding process such as injection molding, 3D printing, and laser engraving.

[0181] Optionally, the first shell 11 and the second slider 112 can both be made of fiberglass and connected as a whole through the above-mentioned one-piece molding process; the decorative door panel 30 and the first slider 322 can both be made of fiberglass and connected as a whole through the above-mentioned one-piece molding process.

[0182] In one embodiment provided in the present application, a wear-resistant layer is provided on the bottom surface of the second sliding block 112 .

[0183] Optionally, the wear-resistant layer may be a DLC coating, which may be plated by PVD or CVD methods.

[0184] For example Figure 16 As shown, in an embodiment provided in the present application, there are multiple second sliders 112 , and the multiple second sliders 112 are arranged at intervals along the length direction of the first shell 11 .

[0185] The length direction of the first shell 11 can be understood as Figure 16 in the Y direction.

[0186] In this embodiment, multiple second sliders 112 contact components on the decorative door panel 30, thereby increasing the total contact area between the decorative door panel 30 and the first shell 11, making the first shell 11 and the decorative door panel 30 smoother when sliding relative to each other, thereby improving the user's feel when folding the casing 10.

[0187] Figure 18 It is a schematic diagram of an example of an exploded view of the decorative door panel 30 and the first shell 11 provided in an embodiment of the present application. Figure 19 yes Figure 18 Schematic diagram of the assembly of the decorative door panel 30 and the first shell 11. Figure 201 is a cross-sectional view of the housing 10 in a flattened state when the second slider 112 and the first slider 322 provided by the embodiment of the present application are aligned.

[0188] like Figures 18-20 As shown, in an embodiment provided in the present application, the second slider 112 is arranged in opposition to the first slider 322. When the housing 10 is in a flattened state, the second slider 112 and the first slider 322 are abutted against each other, and the shell overlapping portion 111 and the door panel overlapping portion 31 are abutted against each other.

[0189] The alignment arrangement may be understood as the second slider 112 and the first slider 322 having a projection overlap area.

[0190] Figure 21 yes Figure 20 FIG. 1 is a cross-sectional view of the initial stage of rotation of the housing 10 from the flat state to the folded state. Figure 22 yes Figure 20 A cross-sectional view of the housing 10 when it is rotated to a nearly folded state.

[0191] The movement process of the first housing 11 and the decorative door panel 30 in this embodiment is as follows.

[0192] One is when the housing 10 is in a flattened state, as Figure 20 As shown, the second slider 112 abuts against the first slider 322 , and the shell overlap portion 111 abuts against the door panel overlap portion 31 , thereby achieving stable support of the decorative door panel 30 on the first shell 11 .

[0193] Second, in the initial stage of the housing 10 rotating from the flat state to the folded state, such as Figure 21 As shown, it can also be said that the housing 10 is bent at a small angle, that is, the angle between the housing 10 and the horizontal plane is 1 to 20 degrees. At this static moment, the second slider 112 and the first slider 322 are still in contact with each other, and the housing overlap portion 111 and the door panel overlap portion 31 are in contact with each other, so that the decorative door panel 30 can stably support the first housing 11. Figure 20 The shape of the housing 10 is rotated to Figure 21 In the shape of the housing 10, during this dynamic process, a slight relative sliding occurs between the second slider 112 and the first slider 322. Since both the second slider 112 and the first slider 322 are self-lubricating, the rotation process of the housing 10 is smoother and the user feels better.

[0194] Third, when the housing 10 is rotated to a state close to the folded state, as shown in FIG. Figure 22 As shown, it can also be said that the housing 10 is bent at a large angle, that is, the angle between the housing 10 and the horizontal plane is 40 to 90 degrees. At this static moment, the second slider 112 is in contact with the door panel overlap 31, and the housing overlap 111 is in contact with the door panel overlap 31. Figure 21 The shape of the housing 10 is rotated to Figure 22 During this dynamic process, the second slider 112 slides on the first slider 322 and the door panel overlap 31. When the second slider 112 slides on the first slider 322, the self-lubricating properties of both sliders ensure a smooth sliding motion. When the second slider 112 slides on the door panel overlap 31, the lubricity of the second slider 112 also ensures a smooth sliding motion. Overall, this results in a smooth rotation of the casing 10, providing a pleasant user experience.

[0195] For example Figure 20 As shown, in one embodiment provided in the present application, the top surface of the first slider 322 is shaped similar to the bottom surface of the second slider 112 .

[0196] In this embodiment, the top surface of the first slider 322 also presents the characteristics of an inclined surface or an arc-shaped surface, so that it can adapt to the bottom surface of the second slider 112. When the housing 10 is in a flattened state, the first slider 322 can fully contact the second slider 112, so that the first slider 322 can stably support the second slider 112.

[0197] Figure 23 It is a schematic exploded view of another example of the decorative door panel 30 and the first shell 11 provided in an embodiment of the present application. Figure 24 yes Figure 23 Schematic diagram of the assembly of the decorative door panel 30 and the first shell 11.

[0198] Figure 25 1 is a cross-sectional view of the housing 10 in a flattened state when the second slider 112 and the first slider 322 provided in the embodiment of the present application are arranged in a staggered manner. Figure 25 (a) is a cross-sectional view when the cutting line falls on the first sliding block 322; Figure 25 (b) is a cross-sectional view when the cutting line falls on the second slider 112 .

[0199] like Figure 23-Figure 25 As shown, in an embodiment provided in the present application, the second slider 112 and the first slider 322 are staggered. When the housing 10 is in the flattened state, the first slider 322 is abutted against the first shell 11, and the shell overlapping portion 111 is abutted against the door panel overlapping portion 31. When the housing 10 rotates from the flattened state to the folded state, the second slider 112 can slide on the door panel overlapping portion 31.

[0200] The staggered arrangement may be understood as the second slider 112 and the first slider 322 having no projected overlapping area.

[0201] Figure 26 yes Figure 25FIG. 1 is a cross-sectional view of the initial stage of rotation of the housing 10 from the flat state to the folded state. Figure 27 yes Figure 25 A cross-sectional view of the housing 10 when it is rotated to a nearly folded state.

[0202] The movement process of the first housing 11 and the decorative door panel 30 in this embodiment is as follows.

[0203] One is when the housing 10 is in a flattened state, as Figure 25 As shown in (a), the first slider 322 abuts against the first housing 11, and the housing overlap portion 111 abuts against the door panel overlap portion 31. Since the second slider 112 and the first slider 322 are staggered, as shown in FIG. Figure 25 As shown in (b), the second slider 112 is not in contact with the support arm 32 or the first slider 322, and the housing overlap portion 111 abuts against the door panel overlap portion 31, thereby achieving stable support of the decorative door panel 30 on the first housing 11.

[0204] Second, in the initial stage of the housing 10 rotating from the flat state to the folded state, such as Figure 26 As shown, it can also be said that the housing 10 is bent at a small angle, that is, the angle between the housing 10 and the horizontal plane is 1 to 20 degrees. At this static moment, the first slider 322 is still in contact with the first shell 11, and the shell overlap portion 111 is in contact with the door panel overlap portion 31. The decorative door panel 30 is able to stably support the first shell 11. Figure 25 The shape of the housing 10 is rotated to Figure 26 In the shape of the housing 10, during this dynamic process, a slight relative sliding occurs between the second slider 112 and the first slider 322. Since both the second slider 112 and the first slider 322 are self-lubricating, the rotation process of the housing 10 is smoother and the user feels better.

[0205] Third, when the housing 10 is rotated to a state close to the folded state, as shown in FIG. Figure 27 As shown, it can also be said that the housing 10 is bent at a large angle, that is, the angle between the housing 10 and the horizontal plane is 40 to 90 degrees. At this static moment, the second slider 112 is in contact with the door panel overlap portion 31. Figure 26 The shape of the housing 10 is rotated to Figure 27 In the shape of the casing 10, during this dynamic process, the first slider 322 slides on the first shell 11, and the second slider 112 slides on the door panel overlap portion 31. Since the first slider 322 and the second slider 112 are self-lubricating, the rotation process of the casing 10 is smoother and the user feels better.

[0206] For example Figure 25 As shown in (a) in FIG. 1 , in one embodiment provided in the present application, the top surface of the first sliding block 322 is a plane.

[0207] In this embodiment, the top surface of the first slider 322 is flat, so that it can adapt to the surface of the first shell 11. When the housing 10 is in a flattened state, the first slider 322 can fully contact the first shell 11, so that the first slider 322 can stably support the first shell 11.

[0208] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A foldable electronic device, characterized in that: include: A housing (10) having an inner cavity (13), wherein the housing (10) includes a first shell (11) for enclosing and forming the inner cavity (13); A rotating shaft assembly (20) is located between the two housings (10), and the rotating shaft assembly (20) is used to rotatably connect the two housings (10) so that the two housings (10) can be switched between a folded state and a flattened state; The rotating shaft assembly (20) includes a decorative door panel (30) that can be linked with the housing (10), and the decorative door panel (30) has a door panel overlap portion (31) extending into the inner cavity (13) on the side facing the housing (10), and the decorative door panel (30) is provided with a support arm (32) extending from the edge of the door panel overlap portion (31); when the housing (10) is in a flattened state, the first shell (11) is in contact with the support arm (32) and the door panel overlap portion (31).

2. The foldable electronic device according to claim 1, wherein: There are multiple support arms (32), and the multiple support arms (32) are arranged at intervals along the length direction of the decorative door panel (30).

3. The foldable electronic device according to claim 1 or 2, characterized in that: On the inner side surface of the decorative door panel (30), one end of the support arm (32) faces the decorative door panel (30) and extends in the width direction of the decorative door panel (30).

4. The foldable electronic device according to any one of claims 1 to 3, characterized in that: The support arm (32) is provided with a first sliding block (322) protruding from the surface, and when the housing (10) is in a flattened state, the first shell (11) abuts against the first sliding block (322) and the door panel overlap portion (31).

5. The foldable electronic device according to claim 4, wherein: The first shell (11) has a shell overlap portion (111) on a side facing the support arm (32), and the first shell (11) is provided with a second slider (112) arranged adjacent to the shell overlap portion (111); from the second slider (112) to the shell overlap portion (111), the bottom surface of the second slider (112) gradually approaches the first shell (11).

6. The foldable electronic device according to claim 5, characterized in that: There are multiple second sliders (112), and the multiple second sliders (112) are arranged at intervals along the length direction of the first shell (11).

7. The foldable electronic device according to claim 5 or 6, characterized in that: The second slider (112) and the first slider (322) are arranged in a counterpositioned manner. When the housing (10) is in a flattened state, the second slider (112) and the first slider (322) abut against each other, and the housing overlap portion (111) and the door panel overlap portion (31) abut against each other.

8. The foldable electronic device according to claim 7, wherein: The top surface of the first sliding block (322) is similar in shape to the bottom surface of the second sliding block (112).

9. The foldable electronic device according to claim 6, wherein: The second slider (112) and the first slider (322) are arranged in a staggered manner. When the housing (10) is in a flattened state, the first slider (322) abuts against the first housing (11), and the housing overlap portion (111) abuts against the door panel overlap portion (31). When the housing (10) rotates from the flattened state to the folded state, the second slider (112) can slide on the door panel overlap portion (31).

10. The foldable electronic device according to claim 9, wherein: The top surface of the first sliding block (322) is a plane.

11. The foldable electronic device according to any one of claims 4 to 10, characterized in that: The support arm (32) is provided with a mounting groove (323), and the first sliding block (322) is fixed in the mounting groove (323).

12. The foldable electronic device according to any one of claims 4 to 11, characterized in that: The first sliding block (322) is made of a self-lubricating material; Alternatively, the top surface of the first sliding block (322) is provided with a wear-resistant layer.

13. The foldable electronic device according to any one of claims 5 to 10, characterized in that: The second sliding block (112) is made of self-lubricating material; Alternatively, the bottom surface of the second sliding block (112) is provided with a wear-resistant layer.

14. The foldable electronic device according to any one of claims 1 to 13, characterized in that: The support arm (32) and the decorative door panel (30) are an integrally formed structure.

15. The foldable electronic device according to any one of claims 1 to 13, characterized in that: The support arm (32) and the decorative door panel (30) are split structures, and the support arm (32) is installed on the decorative door panel (30).

16. The foldable electronic device according to claim 15, wherein: One of the support arm (32) and the decorative door panel (30) is provided with a plug-in column (33), and the other is provided with a plug-in hole (321); the plug-in column (33) and the plug-in hole (321) are connected in a socket-type manner so that the support arm (32) is fixed to the decorative door panel (30).

17. The foldable electronic device according to claim 16, wherein: From the root to the end of the plug-in column (33), the cross-sectional area of the plug-in column (33) gradually increases, and the hole wall of the plug-in hole (321) is similar in shape to the outer peripheral wall of the plug-in column (33).

18. The foldable electronic device according to claim 16, wherein: The plug-in hole (321) and the plug-in column (33) are interference-fitted.

19. A decorative door panel, characterized in that: Applied to a foldable electronic device, the decorative door panel (30) has a door panel overlap portion (31) on one side, and the decorative door panel (30) is provided with a support arm (32) extending from the edge of the door panel overlap portion (31).

20. The decorative door panel according to claim 19, characterized in that There are multiple support arms (32), and the multiple support arms (32) are arranged at intervals along the length direction of the decorative door panel (30).

21. The decorative door panel according to claim 19 or 20, characterized in that: On the inner side surface of the decorative door panel (30), one end of the support arm (32) faces the decorative door panel (30) and extends in the width direction of the decorative door panel (30).

22. The decorative door panel according to any one of claims 19 to 21, characterized in that: The support arm (32) is provided with a first sliding block (322) protruding from the surface.

23. The decorative door panel according to claim 22, characterized in that: The first sliding block (322) is made of a self-lubricating material; Alternatively, the top surface of the first sliding block (322) is provided with a wear-resistant layer.

24. The decorative door panel according to any one of claims 19 to 23, characterized in that: The support arm (32) and the decorative door panel (30) are an integrally formed structure.

25. The decorative door panel according to any one of claims 19 to 23, characterized in that: The support arm (32) and the decorative door panel (30) are split structures, and the support arm (32) is installed on the decorative door panel (30).

26. The decorative door panel according to claim 25, characterized in that: One of the support arm (32) and the decorative door panel (30) is provided with a plug-in column (33), and the other is provided with a plug-in hole (321); the plug-in column (33) and the plug-in hole (321) are connected in a socket-type manner so that the support arm (32) is fixed to the decorative door panel (30).

27. The decorative door panel according to claim 26, characterized in that: From the root to the end of the plug-in column (33), the cross-sectional area of the plug-in column (33) gradually increases, and the hole wall of the plug-in hole (321) is similar in shape to the outer peripheral wall of the plug-in column (33).

28. A hinge assembly, characterized in that: The invention comprises a decorative door panel (30) as claimed in any one of claims 19 to 27.

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