Foldable electronic device and housing arrangement

Abstract

The application provides a foldable electronic device and a shell device. A first middle frame of the electronic device is provided with a first mounting groove near a side of a second middle frame. A first groove end wall of the first mounting groove is oppositely arranged with a second groove end wall. A first groove side wall of the first mounting groove is connected between the first groove end wall and the second groove end wall. A first reinforcing piece is fixed to the first groove end wall. A length extension direction of a folding mechanism includes oppositely arranged first and second end portions. The first end portion is provided with a first stop block. When the electronic device is in a closed state, the first reinforcing piece is located between the first groove side wall and the first stop block and abuts against the first stop block. The yield strength of the first reinforcing piece is greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing piece is greater than the micro Vickers hardness of the first middle frame. The first reinforcing piece can avoid the first stop block from colliding with the adjacent part of the first middle frame, thereby avoiding the problem of local collapse of the first middle frame.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of foldable electronic devices, and in particular, to a foldable electronic device and a housing device. BACKGROUND

[0002] With the continuous development of flexible display screen technology, it is widely used in various foldable electronic devices. Foldable electronic devices often include a housing device for carrying a flexible display screen. The housing device generally includes two middle frames and a folding mechanism connected between the two middle frames. The two middle frames are driven by the folding mechanism to fold or unfold relative to each other. Among them, in the traditional screen-in folding electronic device, when the electronic device falls, especially when the electronic device falls in the closed state, the part of the middle frame adjacent to the pivot of the folding mechanism is prone to local collapse and deformation due to the impact force from the pivot. Therefore, the current screen-in folding electronic device usually uses a high-strength material to prepare the middle frame to improve the overall impact resistance and deformation resistance of the middle frame. However, the use of high-strength materials to prepare the middle frame as a whole will greatly increase the weight and manufacturing cost of the middle frame. How to solve the problem of local collapse and deformation of the part of the middle frame adjacent to the pivot of the folding mechanism due to the impact force while obtaining a middle frame with lighter weight and lower manufacturing cost has become a research direction. SUMMARY

[0003] The embodiments of the present application provide a foldable electronic device and a housing device, which aims to provide a housing device that can solve the problem of local collapse and deformation of the part of the middle frame adjacent to the pivot of the folding mechanism due to the impact force while having lighter weight and lower manufacturing cost, and an electronic device comprising the housing device.

[0004] In a first aspect, a foldable electronic device is provided. The electronic device includes a screen, a first middle frame, a folding mechanism, a second middle frame, and a first reinforcing member. The screen is mounted on the first middle frame and the second middle frame. The folding mechanism connects the first middle frame and the second middle frame. The first middle frame and the second middle frame are unfolded or folded relative to each other to drive the screen to unfold or fold relative to each other. The first middle frame is provided with a first mounting groove on a side close to the second middle frame. The first mounting groove includes a first groove end wall, a second groove end wall, and a first groove side wall. The first groove end wall is arranged opposite to the second groove end wall. The first groove side wall is connected between the first groove end wall and the second groove end wall. The first reinforcing member is located on a side of the first groove end wall facing the second groove end wall and is fixed to the first groove end wall. A part of the folding mechanism is located in the first mounting groove. The length extension direction of the folding mechanism includes a first end portion and a second end portion arranged opposite to each other. The first end portion is provided with a first stop block. The electronic device has an open state and a closed state. When the electronic device is in the open state, the first middle frame and the second middle frame are unfolded relative to each other, the first groove side wall of the first mounting groove faces the second middle frame, and the first reinforcing member is located between the first groove side wall and the first stop block of the folding mechanism. When the electronic device is in the closed state, the first middle frame and the second middle frame are folded relative to each other, the first reinforcing member is located between the first groove side wall and the first stop block, and abuts against the first stop block. The yield strength of the first reinforcing member is greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member is greater than the micro Vickers hardness of the first middle frame.

[0005] It can be understood that in the embodiment, the first middle frame of the electronic device has a first mounting groove for mounting part of the folding mechanism, and the first reinforcing member is fixed on the first groove end wall of the first mounting groove. The yield strength of the first reinforcing member can be greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member can be greater than the micro Vickers hardness of the first middle frame. In this way, when the electronic device falls, especially when the electronic device falls in the closed state, the first reinforcing member can directly bear the impact force from the first stop block of the folding mechanism, thereby effectively avoiding the problem that the first stop block of the folding mechanism collides strongly with the adjacent part of the first middle frame due to the large impact force, causing the local collapse and deformation of the first middle frame, and prolonging the service life of the electronic device.

[0006] Secondly, compared to traditional electronic devices that use high-strength materials to fabricate the first mid-frame to improve its yield strength and / or micro Vickers hardness, but which also significantly increases the weight and manufacturing cost of the first mid-frame, this embodiment only uses a first reinforcing member between the first groove sidewall of the first mounting groove and the first stop block of the folding mechanism. The yield strength of the first reinforcing member is greater than that of the first mid-frame, and / or the micro Vickers hardness of the first reinforcing member is greater than that of the first mid-frame. Therefore, it is not necessary to replace the entire material of the first mid-frame with a high-strength material, resulting in a lighter overall weight of the first mid-frame. This is beneficial for achieving lightweight design of electronic devices. At the same time, the manufacturing cost of the first mid-frame is lower, which helps to reduce the overall manufacturing cost of the electronic device.

[0007] In one possible implementation, a first mounting groove is provided on the end wall of the first groove. A first reinforcing member is fixed to the first mounting groove and is at least partially located within the first mounting groove. When the electronic device is in the open state, the first middle frame and the second middle frame are relatively flattened, the first groove wall of the first mounting groove faces the second middle frame, and the first reinforcing member is located between the first groove wall of the first mounting groove and the first stop block of the folding mechanism. When the electronic device is in the closed state, the first middle frame and the second middle frame are folded relative to each other, the first reinforcing member is located between the first groove wall and the first stop block, and abuts against the first stop block.

[0008] It is understood that the first middle frame in this embodiment has a first mounting groove for assembling the first reinforcing member. By setting the first reinforcing member in the first mounting groove, the first reinforcing member can be located between the first groove wall of the first mounting groove and the first stop block of the folding mechanism. The yield strength of the first reinforcing member can be greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member can be greater than the micro Vickers hardness of the first middle frame. Thus, when the electronic device is dropped, especially when it is dropped in a closed state, the first reinforcing member can directly withstand the impact force from the first stop block of the hinge structure. This effectively prevents the first stop block of the hinge structure from colliding violently with the adjacent part of the first middle frame (i.e., the first groove wall of the first mounting groove in this embodiment) due to a large impact force, thus avoiding localized collapse and deformation of the first middle frame and extending the service life of the electronic device.

[0009] In a possible implementation, the first reinforcing member includes a first surface disposed away from the first slot sidewall. The first stop block includes a first stop surface. When the electronic device is in the open state, the first stop surface faces the screen. When the electronic device is switched from the open state to the closed state, the first middle frame is folded relative to the second middle frame until the first surface of the first reinforcing member abuts against the first stop surface of the first stop block. In this way, the first stop surface of the first stop block can cooperate with the first surface of the first reinforcing member when the electronic device is closed, so that the first middle frame and the second middle frame can be prevented from being excessively folded and damaging the screen.

[0010] In a possible implementation, when the electronic device is in the open state, the direction in which the first middle frame points to the second middle frame is a first direction. In the first direction, the distance between the first reinforcing member and the first stop block of the folding mechanism is less than or equal to 3 mm. In this way, the first reinforcing member can be disposed adjacent to the first stop block of the folding mechanism, and the impact resistance of the first reinforcing member is better, which is conducive to prolonging the service life of the electronic device.

[0011] In a possible implementation, the first assembly slot further includes a second slot wall. The second slot wall faces the first mounting slot. The electronic device further includes a fastener. The fastener fixes the first reinforcing member to the second slot wall. In this way, the first reinforcing member is fixed to the second slot wall through the fastener, which is conducive to improving the connection stability between the first reinforcing member and the second slot wall.

[0012] In a possible implementation, the first reinforcing member is provided with a mounting hole. The second slot wall is provided with a mounting groove. The mounting hole is in communication with the mounting groove. A part of the fastener is located in the mounting hole, and another part of the fastener is located in the mounting groove.

[0013] It can be understood that the housing device in the embodiment can further include a fastener. The first reinforcing member can be further provided with a mounting hole. The second slot wall of the first assembly slot can be further provided with a mounting groove. The fastener can sequentially penetrate the mounting hole of the first reinforcing member and the mounting groove of the second slot wall to fix the first reinforcing member to the first assembly slot. In this way, a part of the fastener can be embedded in the first reinforcing member, and another part of the fastener can be embedded in the first middle frame, which is conducive to improving the connection reliability between the first reinforcing member and the first middle frame. On the other hand, a part of the fastener is embedded in the first middle frame, so that when the first reinforcing member bears the impact force from the folding mechanism, a part of the impact load can also be transmitted to the first middle frame through the fastener, so that the first middle frame can also share a part of the impact load, which is conducive to improving the impact resistance of the first reinforcing member.

[0014] In a possible implementation, a first included angle is formed between a center line of the mounting hole and a bottom wall of the first mounting groove. The first included angle is less than 90 degrees. The opening of the mounting hole faces the screen. In this way, the mounting hole can be arranged obliquely relative to the bottom wall of the first mounting groove and facing the screen, so that the fastener can be conveniently inserted into the mounting hole and the mounting groove, and the fixing of the first reinforcing member is more convenient, which is beneficial to improving the assembly efficiency.

[0015] In a possible implementation, the first reinforcing member is provided with a limiting protrusion. The limiting protrusion is arranged spaced apart from the mounting hole. The second groove wall is further provided with a matching groove. The matching groove is arranged spaced apart from the mounting groove. The limiting protrusion is embedded in the matching groove. In this way, on the one hand, the limiting protrusion can cooperate with the fastener to enhance the connection stability of the first reinforcing member and the first assembly groove; on the other hand, when the first reinforcing member is subjected to an impact force from the first stop block of the folding mechanism, the limiting protrusion can also share part of the impact load, so that the first reinforcing member can withstand greater impact force, which is beneficial to improving the impact resistance of the first reinforcing member.

[0016] In a possible implementation, a second included angle is formed between a center line of the limiting protrusion and the first direction. The second included angle is less than 90 degrees. An opening of the second included angle faces the first groove wall. The first direction is a direction in which the first middle frame points to the second middle frame when the electronic device is in an open state.

[0017] It can be understood that the first reinforcing member in the embodiment is provided with the limiting protrusion on a surface (in the embodiment, the second surface of the first reinforcing member) facing the first assembly groove. The length extension direction of the limiting protrusion and the first direction can form a second included angle with an angle less than 90 degrees, and an opening of the second included angle can face the first groove wall of the first assembly groove, that is, the opening of the second included angle β can face the third surface of the first reinforcing member. In this way, when the first reinforcing member is subjected to an impact force from the first stop block of the folding mechanism, the limiting protrusion can also share part of the impact load, so that the first reinforcing member can withstand greater impact force, which is beneficial to improving the impact resistance of the first reinforcing member.

[0018] In a possible implementation, the first assembly groove further includes a second groove wall. The second groove wall faces the first mounting groove. A surface of the first reinforcing member facing the second groove wall is provided with a connecting protrusion. The second groove wall is provided with a mounting groove. The connecting protrusion is embedded in the mounting groove to fix the first reinforcing member to the second groove wall.

[0019] It can be understood that, by forming the connecting protrusion on the surface of the first reinforcing member facing the second slot wall of the first assembly slot (i.e., the second surface of the first reinforcing member in this embodiment), and by matching the connecting protrusion with the mounting groove to fix the first reinforcing member to the second slot wall, the fixing scheme of fixing the first reinforcing member to the second slot wall by using additional fasteners (such as screws, etc.) can be replaced, so that the shell device does not need to be provided with additional fasteners, which is conducive to reducing the overall manufacturing cost of the electronic device. Secondly, the connecting protrusion in this embodiment is directly formed on the surface of the first reinforcing member, and the two can be integrally processed and formed, so that the preparation process is simpler, and at the same time, the volume of the two can be made smaller, which can better adapt to electronic devices with a thinner wall thickness of the first middle frame, and the application is more widely.

[0020] In a possible implementation, the folding mechanism includes a first connecting structure, a second connecting structure, and a hinge structure. The hinge structure connects the first connecting structure and the second connecting structure. At least part of the first connecting structure is located in the first mounting slot and connected to the first middle frame. The second middle frame is provided with a second mounting slot near the side portion of the first middle frame. At least part of the second connecting structure is located in the second mounting slot and connected to the second middle frame. In the length extension direction of the folding mechanism, the hinge structure includes oppositely arranged first and second ends. The first stop block is located on the side of the first end away from the second end and is fixedly connected to the first end. In this way, the first stop block can be located at the end of the hinge structure, so that the stop function can be realized while not affecting the relative movement of the hinge structure and other components.

[0021] In a possible implementation, when the electronic device is in the open state, the direction in which the first middle frame points to the second middle frame is the first direction. In the first direction, the width of the first stop block is smaller than the width of the hinge structure. In this way, when the electronic device is in the closed state, the first stop block can realize the stop function while not increasing the thickness of the electronic device in the closed state, and the user experience is better.

[0022] In a possible implementation, the difference between the yield strength of the first reinforcing member and the yield strength of the first middle frame is greater than 50 MP, and / or the difference between the micro Vickers hardness of the first reinforcing member and the micro Vickers hardness of the first middle frame is greater than 30 HV. In this way, the impact resistance of the first reinforcing member is better, which is conducive to prolonging the service life of the electronic device.

[0023] In a possible implementation, the yield strength of the first reinforcing member is less than or equal to the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member is less than or equal to the micro Vickers hardness of the first stop block of the folding mechanism.

[0024] It can be understood that the yield strength of the first reinforcing member in the embodiment can also be less than the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member can also be less than the micro Vickers hardness of the first stop block. In this way, when the first reinforcing member collides with the first stop block, the first stop block is not easily damaged by the first reinforcing member, which is beneficial to prolong the service life of the first stop block.

[0025] Alternatively, the yield strength of the first reinforcing member can also be equal to the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member can also be equal to the micro Vickers hardness of the first stop block. In this way, on the one hand, the yield strength of the first reinforcing member is high, so that the first reinforcing member can better withstand the impact force from the first stop block of the folding mechanism, and the impact resistance of the first reinforcing member is better; on the other hand, the yield strength of the first reinforcing member is equal to the yield strength of the first stop block of the folding mechanism, so that the first reinforcing member is not easily deformed even if it is impacted by the first stop block of the folding mechanism, which is beneficial to prolong the service life of the first reinforcing member, and at the same time, the first stop block of the folding mechanism will not be locally collapsed and deformed after colliding with the first reinforcing member, which is beneficial to prolong the service life of the folding mechanism, thereby benefiting the prolongation of the service life of the entire electronic device.

[0026] In a possible implementation manner, the material of the first reinforcing member is titanium alloy material, iron-based material, aluminum-based material, copper-based material, or nickel-based material. In this way, the impact resistance of the first reinforcing member is strong, which can meet the drop reliability requirements of the electronic device.

[0027] In a possible implementation manner, the first middle frame includes a main plate, a first extension plate, a second extension plate, and a third extension plate. The first extension plate and the second extension plate are connected to the same side of the main plate and are respectively located at two ends of the main plate. The third extension plate is connected between the first extension plate and the second extension plate. The third extension plate also connects the main plate and has a height difference with the main plate in the thickness direction of the first middle frame. The main plate, the first extension plate, the second extension plate, and the third extension plate enclose the first mounting slot. The surface of the first extension plate facing the second extension plate constitutes a first slot end wall, and the surface of the main plate facing the first extension plate constitutes a first slot side wall. In this way, the first middle frame can have the first mounting slot for mounting part of the folding mechanism, so that the folding mechanism can utilize the thickness space of the first middle frame, which is beneficial to realize the thin design of the electronic device.

[0028] In a second aspect, a housing device is provided. The housing device includes a first middle frame, a folding mechanism, a second middle frame, and a first reinforcing member. The folding mechanism connects the first middle frame and the second middle frame. The first middle frame and the second middle frame are relatively unfolded or folded to open or close the housing device. The first middle frame is provided with a first mounting slot on a side close to the second middle frame. The first mounting slot includes a first slot end wall, a second slot end wall, and a first slot side wall. The first slot end wall and the second slot end wall are oppositely arranged. The first slot side wall is connected between the first slot end wall and the second slot end wall. The first reinforcing member is located on a side of the first slot end wall facing the second slot end wall and is fixed to the first slot end wall. A part of the folding mechanism is located in the first mounting slot. The length extension direction of the folding mechanism includes a first end portion and a second end portion arranged oppositely. The first end portion is provided with a first stop block. The housing device includes an open state and a closed state. When the housing device is in the open state, the first middle frame and the second middle frame are relatively unfolded, the first slot side wall of the first mounting slot faces the second middle frame, and the first reinforcing member is located between the first slot side wall and the first stop block of the folding mechanism. When the housing device is in the closed state, the first middle frame and the second middle frame are relatively folded, the first reinforcing member is located between the first slot side wall and the first stop block, and abuts against the first stop block. The yield strength of the first reinforcing member is greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member is greater than the micro Vickers hardness of the first middle frame.

[0029] It can be understood that the first middle frame of the housing device in the embodiment has a first mounting slot for mounting part of the folding mechanism, and the first reinforcing member is fixed on the first slot end wall of the first mounting slot. The yield strength of the first reinforcing member can be greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member can be greater than the micro Vickers hardness of the first middle frame. In this way, when the housing device falls, especially when the housing device falls in the closed state, the first reinforcing member can directly bear the impact force from the first stop block of the folding mechanism, thereby effectively avoiding the problem that the first stop block of the folding mechanism collides strongly with the adjacent part of the first middle frame due to the relatively large impact force, causing the local collapse and deformation of the first middle frame, and prolonging the service life of the housing device.

[0030] Secondly, compared with the conventional shell device, the first middle frame is prepared by using high-strength material to improve the yield strength and / or micro Vickers hardness of the first middle frame, but at the same time, the whole is prepared by using high-strength material, which also greatly increases the weight and manufacturing cost of the first middle frame. In the present embodiment, only by setting the first reinforcing member between the first slot side wall of the first mounting slot and the first stop block of the folding mechanism, and the yield strength of the first reinforcing member is greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member is greater than the micro Vickers hardness of the first middle frame, so that the material of the whole first middle frame does not need to be replaced by high-strength material, so that the overall weight of the first middle frame is lighter, which is beneficial to realize the lightweight design of the shell device, and at the same time, the manufacturing cost of the first middle frame is lower, thereby being beneficial to reduce the manufacturing cost of the whole shell device.

[0031] In a possible implementation manner, the first slot end wall is provided with a first assembly slot. The first reinforcing member is fixed to the first assembly slot and at least partially located in the first assembly slot. When the shell device is in the open state, the first middle frame is relatively flattened with the second middle frame, and the first slot wall of the first assembly slot faces the second middle frame. The first reinforcing member is located between the first slot wall of the first assembly slot and the first stop block of the folding mechanism. When the shell device is in the closed state, the first middle frame is relatively folded with the second middle frame, the first reinforcing member is located between the first slot wall and the first stop block, and abuts against the first stop block.

[0032] It can be understood that the first middle frame in the present embodiment has a first assembly slot for assembling the first reinforcing member. By setting the first reinforcing member in the first assembly slot, the first reinforcing member can be located between the first slot wall of the first assembly slot and the first stop block of the folding mechanism. The yield strength of the first reinforcing member can be greater than the yield strength of the first middle frame, and / or the micro Vickers hardness of the first reinforcing member can be greater than the micro Vickers hardness of the first middle frame. In this way, when the shell device falls, especially when the shell device falls in the closed state, the first reinforcing member can directly bear the impact force from the first stop block of the hinge structure, thereby effectively avoiding the problem that the first stop block of the hinge structure collides with the adjacent part of the first middle frame (in the present embodiment, it is the first slot wall of the first assembly slot) due to the larger impact force, causing the first middle frame to locally collapse and deform, which is beneficial to prolong the service life of the shell device.

[0033] In a possible implementation, the housing device is configured to mount a side of the screen as a mounting side of the housing device. The first reinforcing member includes a first face arranged away from the first slot wall. The first stop block includes a first stop face. When the housing device is in the open state, the first stop face is arranged towards the mounting side. When the housing device is switched from the open state to the closed state, the first middle frame is folded relative to the second middle frame until the first face of the first reinforcing member abuts against the first stop face of the first stop block. In this way, the first stop face of the first stop block can cooperate with the first face of the first reinforcing member when the housing device is closed, so that excessive folding of the first middle frame and the second middle frame can be avoided.

[0034] In a possible implementation, when the housing device is in the open state, a direction in which the first middle frame points to the second middle frame is a first direction. In the first direction, the first reinforcing member is arranged adjacent to the first stop block of the folding mechanism, and the impact resistance of the first reinforcing member is better, which is conducive to prolonging the service life of the housing device.

[0035] In a possible implementation, the first assembly slot further includes a second slot wall. The second slot wall is arranged towards the first mounting slot. The housing device further includes a fastener. The fastener is configured to fix the first reinforcing member to the second slot wall. In this way, the first reinforcing member is fixed to the second slot wall through the fastener, which is conducive to improving the connection stability between the first reinforcing member and the second slot wall.

[0036] In a possible implementation, the first reinforcing member is provided with a mounting hole. The second slot wall is provided with a mounting groove. The mounting hole is in communication with the mounting groove. A portion of the fastener is located in the mounting hole. Another portion of the fastener is located in the mounting groove.

[0037] It can be understood that the housing device in the embodiment can further include a fastener. The first reinforcing member can be further provided with a mounting hole. The second slot wall of the first assembly slot can be further provided with a mounting groove. The fastener can sequentially pass through the mounting hole of the first reinforcing member and the mounting groove of the second slot wall to fix the first reinforcing member to the first assembly slot. In this way, a portion of the fastener can be embedded in the first reinforcing member, and another portion of the fastener can be embedded in the first middle frame. On the one hand, the connection reliability between the first reinforcing member and the first middle frame can be improved. On the other hand, a portion of the fastener is embedded in the first middle frame, so that when the first reinforcing member bears an impact force from the folding mechanism, a portion of the impact load can also be transmitted to the first middle frame through the fastener, so that the first middle frame can also share a portion of the impact load, which is conducive to improving the impact resistance of the first reinforcing member.

[0038] In a possible implementation, a first included angle is formed between the center line of the mounting hole and the bottom wall of the first mounting groove. The first included angle is less than 90°. The opening of the mounting hole faces the mounting side. In this way, the mounting hole can be arranged obliquely relative to the first mounting groove and towards the bottom wall of the screen, so that the fastener can be inserted into the mounting hole and the mounting groove, and the fixing of the first reinforcing member is facilitated, thereby improving the assembly efficiency.

[0039] In a possible implementation, the difference between the yield strength of the first reinforcing member and the yield strength of the first middle frame is greater than 50 MP, and / or the difference between the micro Vickers hardness of the first reinforcing member and the micro Vickers hardness of the first middle frame is greater than 30 HV. In this way, the impact resistance of the first reinforcing member is better, and the service life of the shell device is prolonged.

[0040] In a possible implementation, the yield strength of the first reinforcing member is less than or equal to the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member is less than or equal to the micro Vickers hardness of the first stop block of the folding mechanism. It can be understood that the yield strength of the first reinforcing member in the embodiment can also be less than the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member can also be less than the micro Vickers hardness of the first stop block. In this way, when the first reinforcing member collides with the first stop block, the first stop block is not easily damaged by the first reinforcing member, and the service life of the first stop block is prolonged.

[0041] Alternatively, the yield strength of the first reinforcing member can also be equal to the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member can also be equal to the micro Vickers hardness of the first stop block. In this way, on the one hand, the yield strength of the first reinforcing member is high, so that the first reinforcing member can better withstand the impact force from the first stop block of the folding mechanism, and the impact resistance of the first reinforcing member is better; on the other hand, the yield strength of the first reinforcing member is equal to the yield strength of the first stop block of the folding mechanism, so that the first reinforcing member is not easily deformed even if it is impacted by the first stop block of the folding mechanism, and the service life of the first reinforcing member is prolonged. At the same time, the yield strength of the first reinforcing member is not greater than the yield strength of the first stop block of the folding mechanism, and / or the micro Vickers hardness of the first reinforcing member is not greater than the micro Vickers hardness of the first stop block, so that after the first stop block of the folding mechanism collides with the first reinforcing member, the first stop block is not locally collapsed and deformed, and the service life of the folding mechanism is prolonged, thereby prolonging the service life of the entire shell device.

[0042] In one possible implementation, the first reinforcing member is made of titanium alloy, iron-based material, aluminum-based material, copper-based material, or nickel-based material. This provides the first reinforcing member with strong impact resistance, meeting the drop reliability requirements of the housing device. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0044] Figure 1a This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application when it is in the open state;

[0045] Figure 1b yes Figure 1a The diagram shows the structure of the electronic device when it is in a closed state.

[0046] Figure 2 yes Figure 1a The diagram shows an exploded view of the electronic device in some embodiments;

[0047] Figure 3 yes Figure 1a A partial structural schematic diagram of the housing device of the electronic device shown in one embodiment;

[0048] Figure 4 yes Figure 3 The exploded view of the housing device shown in one embodiment;

[0049] Figure 5 yes Figure 4 A schematic diagram of the structure of the first middle frame of the housing device shown;

[0050] Figure 6 yes Figure 3 Schematic diagrams of the reinforcing member of the housing assembly shown from different perspectives in one embodiment;

[0051] Figure 7a yes Figure 3 A schematic diagram of the assembly structure of the first reinforcing member, fasteners and first middle frame of the housing device shown;

[0052] Figure 7b yes Figure 1a A partial cross-sectional structural diagram of one embodiment of the electronic device shown, cut along point AA;

[0053] Figure 8 yes Figure 3 A schematic diagram of the folding mechanism of the housing device is shown.

[0054] Figure 9 yesFigure 1a FIG. 4 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line B-B;

[0055] Figure 10a is Figure 4 FIG. 5 is a schematic view of an assembly structure of the first middle frame and the folding mechanism shown in FIG. 1;

[0056] Figure 10b is Figure 4 FIG. 6 is a schematic view of a partial assembly structure of the first middle frame, the second middle frame, and the folding mechanism shown in FIG. 1;

[0057] Figure 11 is Figure 1b FIG. 7 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line C-C;

[0058] Figure 12 is Figure 1b FIG. 8 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line D-D;

[0059] Figure 13 is Figure 1b FIG. 9 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line D-D;

[0060] Figure 14 is Figure 1a FIG. 10 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line A-A;

[0061] Figure 15 is Figure 1a FIG. 11 is a schematic view of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1, taken along line E-E;

[0062] Figure 16 is Figure 6 FIG. 12 is a schematic view of a structure of the reinforcing member shown in FIG. 1, taken from another perspective in another embodiment;

[0063] Figure 17 is Figure 7b FIG. 13 is a schematic view of a structure of the reinforcing member shown in FIG. 1, taken from another perspective in another embodiment;

[0064] Figure 18 is Figure 6 FIG. 14 is a schematic view of a structure of the reinforcing member shown in FIG. 1, taken from another perspective in another embodiment;

[0065] Figure 19 is Figure 7b FIG. 15 is a schematic view of a structure of the reinforcing member shown in FIG. 1, taken from another perspective in another embodiment;

[0066] Figure 20 is Figure 10aA partial structural view of the illustrated structure in another embodiment. DETAILED DESCRIPTION

[0067] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0068] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connecting" should be interpreted broadly, for example, "connecting" can be detachable connection, or can be non-detachable connection, can be direct connection, or can be indirect connection through intermediate medium. Among them, "fixed connection" refers to the relative position relationship after being connected with each other does not change. The orientation language mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer" and the like, is only the direction of the accompanying drawings, therefore, the orientation language used is for better and clearer illustration and understanding of the embodiments of the present application, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application. "Multiple" means at least two.

[0069] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.

[0070] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are in an "or" relationship.

[0071] In this specification, the reference to "one embodiment" or "some embodiments" or the like means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Therefore, the statements "in an embodiment", "in some embodiments", "in other embodiments", "in another embodiment", etc. appearing in various places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically stated. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically stated.

[0072] It is to be understood that the specific embodiments described herein are merely illustrative of the application and do not limit the scope of the application. It is further noted that, for the sake of brevity, the figures have not necessarily been drawn to scale and that specific configurations can be shown in greater detail than other configurations, particularly if such detail has been deemed to unnecessarily obscure the inventive aspects of the application.

[0073] Figure 1a is a structural schematic diagram of the electronic device 1000 in an open state according to an embodiment of the present application. Figure 1b is a structural schematic diagram of the electronic device 1000 in a closed state according to an embodiment of the present application. Figure 1a is a structural schematic diagram of the electronic device 1000 in a closed state according to an embodiment of the present application. Figure 2 is a structural schematic diagram of the electronic device 1000 in a closed state according to an embodiment of the present application. Figure 1a is an exploded structural schematic diagram of the electronic device 1000 in some embodiments according to an embodiment of the present application.

[0074] As shown in Figures 1a to 2 , the electronic device 1000 can include a housing device 100 and a screen 200. The screen 200 can be mounted on a mounting side 100a of the housing device 100. The housing device 100 can be in an open state as shown in Figure 1a , and in a closed state as shown in Figure 1b . The housing device 100 can also be in an intermediate state between being unfolded and being folded. The intermediate state can be any state between the open state and the closed state. The screen 200 can move with the housing device 100. The housing device 100 can drive the screen 200 to unfold or fold, so that the electronic device 1000 can be unfolded to the open state or folded to the closed state. When the electronic device 1000 is in the closed state, the screen 200 can be located inside the housing device 100. In other words, the electronic device 1000 can be a screen-in-fold electronic device. It should be understood that Figure 1a and Figure 1b only schematically show some components included in the electronic device 1000, and the actual shape, actual size and actual structure of these components are not limited by Figure 1a and Figure 1b . In other embodiments, when the electronic device 1000 is in other forms of devices, the electronic device 1000 can also not include the screen 200.

[0075] In the present embodiment, when the electronic device 1000 is in the open state, the screen 200 can be unfolded. At this time, the screen 200 can perform full-screen display, and the electronic device 1000 has a large display area, which is conducive to improving the viewing experience and operation experience of the user. When the electronic device 1000 is in the closed state, the planar size of the electronic device 1000 is small, which is convenient for the user to carry and store.

[0076] Exemplarily, the shell device 100 can include a first shell 10, a second shell 20, and a folding mechanism 30. The folding mechanism 30 can be connected to the first shell 10 and the second shell 20. The folding mechanism 30 can move to enable the first shell 10 and the second shell 20 to be relatively unfolded to an open state or relatively folded to a closed state. A screen 200 can be fixedly connected to the first shell 10 and the second shell 20. The first shell 10 can include a first middle frame 11 and a first back cover 12. The first back cover 12 can be located on a side of the first middle frame 11 away from the screen 200 and fixedly connected to the first middle frame 11. The second shell 20 can include a second middle frame 21 and a second back cover 22. The second back cover 22 can be located on a side of the second middle frame 21 away from the screen 200 and fixedly connected to the second middle frame 21. At this time, a surface of the first back cover 12 away from the first middle frame 11 can constitute an appearance surface of the first shell 10. A surface of the second back cover 22 away from the second middle frame 21 can constitute an appearance surface of the second shell 20. It should be understood that the first shell 10 and the second shell 20 are both shell pieces for mounting and fixing other components of an electronic device and have diversified structures. The folding mechanism 30 is used to realize relative movement between the first shell 10 and the second shell 20 and also has diversified structures. The specific structure of the first shell 10, the second shell 20, and the folding mechanism 30 is not strictly limited in the embodiments of the present application. The drawings of the present application only schematically show the general structure of the first shell 10, the second shell 20, and the folding mechanism 30 in one embodiment.

[0077] Exemplarily, the screen 200 can integrate display function and touch sensing function. The display function of the screen 200 is used to display images, videos, etc., and the touch sensing function of the screen 200 is used to sense the touch action of a user to realize human-computer interaction. Exemplarily, the screen 200 includes a flexible display screen that can be bent. The flexible display screen can adopt a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, an active-matrix organic light emitting diode (AMOLED) display screen, a flexible light-emitting diode (FLED) display screen, a MiniLED display screen, a MicroLED display screen, a Micro-OLED display screen, a quantum dot light emitting diode (QLED) display screen, etc. For ease of understanding, the direction same as the light-out direction of the screen 200 is defined as “up”, and the direction opposite to the light-out direction of the screen 200 is defined as “down”.

[0078] Exemplarily, the electronic device 1000 can further include a plurality of components (not shown in the figure) installed inside the housing device 100. The plurality of components can include, for example, a processor, an internal memory, an external memory interface, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a communication module, a camera, an audio module, a loudspeaker, a receiver, a microphone, an earphone interface, a sensor module, a key, a motor, an indicator, and a subscriber identification module (SIM) card interface, etc.

[0079] In the present embodiment, the electronic device 1000 is taken as an example of a two-fold structure, that is, the electronic device 1000 includes two plate portions and a bending portion connected between the two plate portions. Among them, the two plate portions can be rotated towards each other to be stacked with each other (corresponding to the closed state described above), so that the electronic device 1000 presents a two-layered form; the two plate portions can also be rotated away from each other to be flattened (corresponding to the open state described above). In other embodiments, the electronic device 1000 can also be a three-fold or more structure, that is, the electronic device 1000 includes three or more plate portions, and adjacent two plate portions are connected by a bending portion, and adjacent two plate portions can be rotated towards each other to be stacked with each other or rotated away from each other to be flattened. When the electronic device 1000 is a three-fold or more structure, the structure of the electronic device 1000 can be adaptively designed according to the description of the two-fold structure of the present embodiment, and the present application will not be repeated here.

[0080] Figure 3 is a partial structure schematic diagram of the housing device 100 of the electronic device 1000 shown in FIG. 1. Figure 1a is an exploded structure schematic diagram of the housing device 100 in an embodiment. Figure 4 is a structure schematic diagram of the first middle frame 11 of the housing device 100. Figure 3 Figure 5 is a structure schematic diagram of the first middle frame 11 of the housing device 100. Figure 4 is a structure schematic diagram of the first middle frame 11 of the housing device 100.

[0081] Figures 3 to 5 ​​As shown, the first middle frame 11 can include a main plate 11a, a first extension plate 11b, a second extension plate 11c, and a third extension plate 11d. The first extension plate 11b and the second extension plate 11c can be connected at the same side of the main plate 11a and located at two ends of the main plate 11a respectively. The third extension plate 11d can be connected between the first extension plate 11b and the second extension plate 11c. The third extension plate 11d can also be connected to the main plate 11a. Among them, the third extension plate 11d and the main plate 11a can have a height difference in the thickness direction of the electronic device 1000. At this time, the main plate 11a, the first extension plate 11b, the second extension plate 11c, and the third extension plate 11d can collectively enclose the first mounting slot 111. When the electronic device 1000 is in an open state, the first extension plate 11b, the second extension plate 11c, and the third extension plate 11d can all be located on the side of the main plate 11a close to the second middle frame 21. It should be understood that although the first middle frame 11 is divided into four parts in the present embodiment, it does not affect that the first middle frame 11 can be a one-piece structure, that is, the main plate 11a, the first extension plate 11b, the second extension plate 11c, and the third extension plate 11d can be integrally formed.

[0082] Exemplarily, the first mounting slot 111 can include a first slot end wall 112, a second slot end wall 113, and a first slot side wall 116. Among them, the first slot end wall 112 can be formed on the surface of the first extension plate 11b facing the second extension plate 11c. The second slot end wall 113 can be formed on the surface of the second extension plate 11c facing the first extension plate 11b. The first slot side wall 116 can be formed on the surface of the main plate 11a facing the first extension plate 11b. At this time, the first slot end wall 112 can be oppositely arranged with the second slot end wall 113. The first slot side wall 116 can be connected between the first slot end wall 112 and the second slot end wall 113.

[0083] Exemplarily, at least part of the surface of the first slot end wall 112 facing the second slot end wall 113 can be inwardly recessed to form a first assembly slot 114. The first assembly slot 114 can communicate with the first mounting slot 111. Among them, the first assembly slot 114 can include a first slot wall 1141 and a second slot wall 1142. When the electronic device 1000 is in an open state, the first slot wall 1141 can face the second middle frame 21. The second slot wall 1142 can face the second slot end wall 113 of the first mounting slot 111. The second slot wall 1142 can be provided with a mounting groove 114a. The opening of the mounting groove 114a can face the second slot end wall 113. Exemplarily, at least part of the surface of the second slot end wall 113 facing the first slot end wall 112 can be inwardly recessed to form a second assembly slot 115. The structure of the second assembly slot 115 is substantially the same as that of the first assembly slot 114, which will not be described here.

[0084] It should be understood that the first groove wall 1141 may not be a complete wall surface. For example, the first groove wall 1141 may form multiple walls facing away from the main body plate 11a due to some structural protrusions or depressions. In this way, multiple walls facing away from the main body plate 11a can collectively constitute the first groove wall 1141. In other words, the walls in the first mounting groove 114 facing away from the main body plate 11a (that is, facing the second middle frame 21 when the electronic device 1000 is in the open state) can all constitute part of the first groove wall 1141.

[0085] For example, the second middle frame 21 may be provided with a second mounting groove 211. The second mounting groove 211 may include a first groove end wall 212 and a second groove end wall 213 disposed opposite to each other. The second mounting groove 211 may also include a first groove side wall 216 connecting the first groove end wall 212 and the second groove end wall 213. At least a portion of the surface of the first groove end wall 212 of the second mounting groove 211 facing the second groove end wall 213 may be recessed inward to form a third mounting groove 214. At least a portion of the surface of the second groove end wall 213 of the second mounting groove 211 facing the first groove end wall 212 may be recessed inward to form a fourth mounting groove 215. Both the third mounting groove 214 and the fourth mounting groove 215 may communicate with the second mounting groove 211. The structures of the third mounting groove 214 and the fourth mounting groove 215 are substantially the same as the structure of the first mounting groove 114, and will not be described in detail here.

[0086] For example, the first middle frame 11 and the second middle frame 21 can both be made of aluminum alloy.

[0087] Figure 6 yes Figure 3 The first reinforcing member 40a of the housing device 100 shown is a structural schematic diagram from a different perspective in one embodiment.

[0088] like Figure 6 As shown, the housing device 100 may further include at least one reinforcing member. The reinforcing member may be generally block-shaped. The reinforcing member may be manufactured by 3D printing, metal injection molding, or other methods. The material of the reinforcing member may be a high-strength material such as titanium alloy, iron-based material, aluminum-based material, copper-based material, or nickel-based material. The yield strength of the reinforcing member may be greater than the yield strength of the first middle frame 11. The microVickers hardness of the reinforcing member may be greater than the microVickers hardness of the first middle frame 11. For example, the difference between the yield strength of the reinforcing member and the yield strength of the first middle frame 11 may be greater than 50 MPa, and / or the difference between the microVickers hardness of the reinforcing member and the microVickers hardness of the first middle frame 11 may be greater than 30 HV.

[0089] In this embodiment, the number of reinforcing members can be four, and the four reinforcing members can be identical in shape and size, for example, including a first reinforcing member 40a, a second reinforcing member 40b, a third reinforcing member 40c, and a fourth reinforcing member 40d. The first reinforcing member 40a, the second reinforcing member 40b, the third reinforcing member 40c, and the fourth reinforcing member 40d can be fixed one-to-one to the first assembly slot 114, the second assembly slot 115, the third assembly slot 214, and the fourth assembly slot 215 (see [reference]). Figure 4 The following will take the example of one of the first reinforcing members 40a being fixed to the first assembly slot 114.

[0090] Exemplarily, the peripheral surface of the first reinforcing member 40a may include a first surface 41, a second surface 42, a third surface 43, and a fourth surface 44. The first surface 41 of the first reinforcing member 40a may be disposed opposite to the third surface 43, and the second surface 42 of the first reinforcing member 40a may be disposed opposite to the fourth surface 44. The first reinforcing member 40a may be provided with a mounting hole 45. The mounting hole 45 may penetrate through the second surface 42 and the fourth surface 44 of the first reinforcing member 40a. In some embodiments, the first surface 41 may be connected to the second surface 42. Alternatively, the first surface 41 may also be connected to the second surface 42 via a transition surface (e.g., the transition surface may be an arcuate surface).

[0091] In other embodiments, the shapes and sizes of the multiple reinforcing members may not be exactly the same.

[0092] Figure 7a yes Figure 3 A schematic diagram of the partial assembly structure of the first reinforcing member 40a, fastener 50, and first middle frame 11 of the housing assembly 100 shown. Figure 7b yes Figure 1a The diagram shows a partial cross-sectional view of one embodiment of the electronic device 1000 cut along point AA.

[0093] like Figure 7a and Figure 7bAs shown, the housing device 100 can further include fasteners 50. The fasteners 50 can sequentially pass through the mounting holes 45 of the first reinforcing member 40a and the mounting recesses 114a of the second groove wall 1142, so as to fix the first reinforcing member 40a to the first assembly groove 114. The center line of the mounting hole 45 can coincide with the center line of the mounting recess 114a. In this way, a part of the fastener 50 can be embedded in the first reinforcing member 40a, and another part of the fastener 50 can be embedded in the second groove wall 1142, which is conducive to ensuring the connection reliability between the first reinforcing member 40a and the first middle frame 11. In the embodiment, the fastener 50 can be a screw, a rivet or other columnar fastener. The diameter of the fastener 50 can be less than or equal to 1.2 mm. For example, the diameter of the fastener 50 can be 0.3 mm, 0.42 mm, 0.6 mm, 1 mm, etc. The number of fasteners 50 can be two. In other embodiments, the number of fasteners 50 can also be one or more than two. The number of fasteners 50 is not limited in the present application.

[0094] Exemplarily, the center line T1 of the mounting hole 45 and the bottom wall of the first mounting groove 111 facing the screen 200 form a first included angle a. The first included angle a can be less than 90°. The opening of the mounting hole 45 can be arranged towards the screen 200. In this way, the mounting hole 45 can be arranged obliquely relative to the first mounting groove 111 towards the bottom wall of the screen 200, so as to facilitate the fastener 50 to be installed in the mounting hole 45 and the mounting recess 114a, so that the fixing of the first reinforcing member 40a is more convenient, which is conducive to improving the assembly efficiency.

[0095] Exemplarily, the second surface 42 of the part of the first reinforcing member 40a can further protrude to form a boss 46 in the direction facing the second groove wall 1142. The second groove wall 1142 can further be partially recessed inward to form a receiving space 114c for accommodating the boss 46 of the first reinforcing member 40a. In this way, the first reinforcing member 40a can be embedded in the second groove wall 1142 of the first assembly groove 114, and the contact area between the first reinforcing member 40a and the first middle frame 11 is larger, which is conducive to improving the connection stability of the first reinforcing member 40a and the first middle frame 11.

[0096] In some embodiments, the first reinforcing member 40a can be provided with two mounting holes 45 arranged side by side. The second groove wall 1142 can be provided with two mounting recesses 114a arranged side by side. The number of fasteners 50 can also be two. The two fasteners 50 can be respectively installed in the two mounting holes 45 and the two mounting recesses 114a. At this time, the two fasteners 50 can be arranged side by side.

[0097] In other embodiments, the two fasteners 50 can also be fixed together with the first reinforcing member 40a by laser spot welding at positions adjacent to the two fasteners 50, so that the first reinforcing member 40a can be fixed more firmly with the two fasteners 50, and the structural stability of the entire housing device 100 can be improved. Alternatively, the mounting groove 114a can also be filled with glue, so that the glue can sufficiently fill the gap between the fastener 50 and the mounting groove 114a, thereby enhancing the connection reliability of the fastener 50 and the second groove wall 1142.

[0098] In some other embodiments, the first reinforcing member 40a can also not be provided with the mounting hole 45. The second groove wall 1142 can also not be provided with the mounting groove 114a. At this time, the first reinforcing member 40a can be fixed to the second groove wall 1142 by adhesion. That is, the fastener 50 can also be adhesive glue.

[0099] In some other embodiments, the center line of the mounting hole 45 can also be parallel to the thickness direction of the electronic device 1000.

[0100] Figure 8 is Figure 3 a structural schematic view of the folding mechanism 30 of the housing device 100 shown in

[0101] As shown in Figure 8 , the folding mechanism 30 can include a first connecting structure 31, a second connecting structure 32, and a hinge structure 33. The first connecting structure 31 and the second connecting structure 32 can be substantially symmetrical structures. The first connecting structure 31 and the second connecting structure 32 can both be connected to the hinge structure 33. The first connecting structure 31 and the second connecting structure 32 can both move relative to the hinge structure 33.

[0102] Exemplarily, the folding mechanism 30 can include a first end portion 301 and a second end portion 302 in the length extension direction thereof. The first end portion 301 of the folding mechanism 30 can be provided with a first stop block 34. The first stop block 34 can include a first stop surface 341. When the electronic device 1000 is in an open state, the first stop surface 341 can be disposed towards the screen 200 (see Figure 2 ) In some embodiments, when the electronic device 1000 is in the open state, the first stop surface 341 can be disposed parallel to the screen 200.

[0103] Exemplarily, the hinge structure 33 can include a first end 33a and a second end 33b oppositely arranged in the length extension direction of the folding mechanism 30. The first stop block 34 can be located on the side of the first end 33a of the hinge structure 33 away from the second end 33b, and fixedly connected to the first end 33a. In the thickness direction of the electronic device 1000, the first stop block 34 can be exposed relative to the hinge structure 33. In some embodiments, in the thickness direction of the electronic device 1000, the first stop block 34 can also not be exposed relative to the hinge structure 33.

[0104] Exemplarily, the second end 302 of the folding mechanism 30 can be provided with a second stop block 35. The shapes and sizes of the first stop block 34 and the second stop block 35 can be substantially the same. The second stop block 35 can be located on the side of the second end 33b of the hinge structure 33 away from the first end 33a, and fixedly connected to the second end 33b. The second stop block 35 is provided substantially the same as the first stop block 34, which will not be described here. At this time, the first end 33a of the hinge structure 33 and the first stop block 34 can constitute at least part of the first end 301 of the folding mechanism 30. The second end 33b of the hinge structure 33 and the second stop block 35 can constitute at least part of the second end 302.

[0105] In some embodiments, the shapes and sizes of the first stop block 34 and the second stop block 35 can also not be completely the same. In other embodiments, the folding mechanism 30 can also not include the second stop block 35.

[0106] In other embodiments, the folding mechanism 30 can also include a first support plate (not shown) and a second support plate (not shown). The first support plate and the second support plate can have substantially symmetrical structures. The first support plate can be located above the first connecting structure 31, and fixedly connected to the first connecting member. The projection of the first support plate in the thickness direction of the electronic device 1000 can overlap the first connecting structure 31 and part of the hinge structure 33. The second support plate can be located above the second connecting structure 32, and fixedly connected to the second connecting structure 32. The projection of the second support plate in the thickness direction of the electronic device 1000 can overlap the second connecting structure 32 and part of the hinge structure 33. In this way, the first support plate and the second support plate can cover the uneven places of the upper surfaces of the first connecting structure 31, the second connecting structure 32 and the hinge structure 33 in the thickness direction of the electronic device 1000, thereby providing a relatively flat support environment for the screen 200 when the electronic device 1000 is in the open state.

[0107] Figure 9 is Figure 1a A partial cross-sectional structure schematic diagram of an embodiment of the electronic device 1000 shown in the drawing is cut along the B-B line.Figure 10a is Figure 4 is a partial assembly view of the first middle frame 11 and the folding mechanism 30. Figure 10b is Figure 4 is a partial assembly view of the first middle frame 11, the second middle frame 21 and the folding mechanism 30. In this view, Figure 10a and Figure 10b are both hidden views of the first connecting structure 31, the second connecting structure 32 and the hinge structure 33 in the folding mechanism 30, and only the first stopper 34 of the folding mechanism 30 is shown.

[0108] As shown in Figure 9 and Figure 10b , at least part of the first connecting structure 31 of the folding mechanism 30 can be located in the first mounting slot 111 and connected to the first middle frame 11. At least part of the second connecting structure 32 of the folding mechanism 30 can be located in the second mounting slot 211 and connected to the second middle frame 21. Exemplarily, part of the hinge structure 33 of the folding mechanism 30 can be located in the first mounting slot 111, and part of the hinge structure 33 can be located in the second mounting slot 211.

[0109] Exemplarily, part of the first stopper 34 of the folding mechanism 30 can be located in the first assembly slot 114, and part of the first stopper 34 can be located in the third assembly slot 214. Part of the second stopper 35 of the folding mechanism 30 can be located in the second assembly slot 115, and part of the second stopper 35 can be located in the fourth assembly slot 215 (see Figure 3 ). In other words, the first assembly slot 114 and the third assembly slot 214 can be used to avoid at least part of the first stopper 34 in the folding mechanism 30. The second assembly slot 115 and the fourth assembly slot 215 can be used to avoid at least part of the second stopper 35 of the folding mechanism 30. In other embodiments, the first stopper 34 can also not be located in the first assembly slot 114 and / or the third assembly slot 214.

[0110] When the electronic device 1000 is in the open state, the first middle frame 11 and the second middle frame 21 can be relatively flattened. The first connecting structure 31 and the second connecting structure 32 of the folding mechanism 30 can be relatively flattened. The direction in which the first middle frame 11 points to the second middle frame 21 can be a first direction. The first direction can be perpendicular to the length extension direction of the folding mechanism 30 and the thickness direction of the electronic device 1000. At this time, the first connecting structure 31 and the second connecting structure 32 can be located on opposite sides of the hinge structure 33, respectively. The first reinforcing piece 40a can be located between the first slot wall 1141 of the first assembly slot 114 and the first stop block 34 of the folding mechanism 30 (i.e., the first reinforcing piece 40a can be located between the first slot side wall 116 of the first mounting slot 111 and the first stop block 34). The third face 43 of the first reinforcing piece 40a can contact the first slot wall 1141 of the first assembly slot 114. The first face 41 of the first reinforcing piece 40a can be spaced apart from the first stop block 34 of the folding mechanism 30. The spacing between the first face 41 of the first reinforcing piece 40a and the first stop block 34 of the folding mechanism 30 in the first direction can be less than or equal to 3 mm. At this time, the distance between the first reinforcing piece 40a and the first stop block 34 of the folding mechanism 30 is relatively close.

[0111] In some embodiments, when the electronic device 1000 is in the open state, the width of the first stop block 34 in the first direction can be less than the width of the hinge structure 33.

[0112] In other embodiments, the first reinforcing piece 40a can also contact the first stop block 34 of the folding mechanism 30.

[0113] Figure 11 is Figure 1b is a partial cross-sectional structure schematic diagram of an embodiment of the electronic device 1000 along C-C. Figure 12 is Figure 1b is a partial cross-sectional structure schematic diagram of an embodiment of the electronic device 1000 along D-D.

[0114] As Figure 11 and Figure 12 When the electronic device 1000 is in the closed state, the first middle frame 11 and the second middle frame 21 can be relatively folded. The first connecting structure 31 and the second connecting structure 32 of the folding mechanism 30 can be relatively folded. At this time, the space between the first middle frame 11 and the second middle frame 21, and the space between the first connecting structure 31 and the second connecting structure 32 can be used to accommodate the screen 200.

[0115] Exemplarily, the first connecting structure 31 and the second connecting structure 32 can be located at the same side of the hinge structure 33. The first reinforcing piece 40a located in the first assembly slot 114 can be located between the first slot wall 1141 of the first assembly slot 114 and the first stop block 34 of the folding mechanism 30 (i.e., the first reinforcing piece 40a can be located between the first slot side wall 116 of the first assembly slot 111 and the first stop block 34). The third surface 43 of the first reinforcing piece 40a can contact the first slot wall 1141 of the first assembly slot 114. The first surface 41 of the first reinforcing piece 40a can contact the first stop surface 341 of the first stop block 34.

[0116] When the electronic device 1000 is converted from the open state to the closed state, the second middle frame 21 can be folded relative to the first middle frame 11 until the first surface 41 of the first reinforcing piece 40a abuts against the first stop surface 341 of the first stop block 34. That is, the first stop surface 341 of the first stop block 34 can be used for stopping during the folding process of the electronic device 1000, so that the first middle frame 11 and the second middle frame 21 can be prevented from being excessively folded and damaging the screen 200.

[0117] It can be understood that the first middle frame 11 in the embodiment has the first assembly slot 114 for assembling the first reinforcing piece 40a. By arranging the first reinforcing piece 40a in the first assembly slot 114, the first reinforcing piece 40a can be located between the first slot wall 1141 of the first assembly slot 114 and the first stop block 34 of the folding mechanism 30. The yield strength of the first reinforcing piece 40a can be greater than the yield strength of the first middle frame 11, and / or the micro Vickers hardness of the first reinforcing piece 40a can be greater than the micro Vickers hardness of the first middle frame 11. In this way, when the electronic device 1000 falls, especially when the electronic device 1000 falls in the closed state, the first reinforcing piece 40a can directly bear the impact force from the first stop block 34 of the hinge structure 33, so that the first stop block 34 of the hinge structure 33 can be effectively prevented from colliding with the adjacent part of the first middle frame 11 (i.e., the first slot wall 1141 of the first assembly slot 114 in the embodiment) due to a large impact force, thereby avoiding the problem of local collapse and deformation of the first middle frame 11, and prolonging the service life of the electronic device 1000.

[0118] Secondly, compared with the traditional electronic device 1000, by using high-strength materials to prepare the first middle frame 11 to improve the yield strength and / or micro Vickers hardness of the first middle frame 11, but at the same time, the whole is prepared by using high-strength materials, which greatly increases the weight and manufacturing cost of the first middle frame 11. In the present embodiment, only by arranging the first reinforcing piece 40a between the first slot wall 1141 of the first assembly slot 114 and the first stop block 34 of the folding mechanism 30, and the yield strength of the first reinforcing piece 40a is greater than the yield strength of the first middle frame 11, and / or the micro Vickers hardness of the first reinforcing piece 40a is greater than the micro Vickers hardness of the first middle frame 11, so that the material of the first middle frame 11 as a whole is not replaced by high-strength materials, so that the overall weight of the first middle frame 11 is lighter, which is beneficial to realize the lightweight design of the electronic device 1000, and at the same time, the manufacturing cost of the first middle frame 11 is lower, thereby reducing the manufacturing cost of the entire electronic device 1000.

[0119] In addition, the yield strength of the first reinforcing piece 40a in the present embodiment can also be equal to the yield strength of the first stop block 34 of the folding mechanism 30, and / or the micro Vickers hardness of the first reinforcing piece 40a can also be equal to the micro Vickers hardness of the first stop block 34. In this way, on the one hand, the yield strength of the first reinforcing piece 40a is high, so that the first reinforcing piece 40a can better withstand the impact force from the first stop block 34 of the folding mechanism 30, and the impact resistance of the first reinforcing piece 40a is better; on the other hand, the yield strength of the first reinforcing piece 40a is equal to the yield strength of the first stop block 34 of the folding mechanism 30, so that the first reinforcing piece 40a is not easy to deform itself even if it is impacted by the first stop block 34 of the folding mechanism 30, which is beneficial to prolong the service life of the first reinforcing piece 40a, and at the same time, it will not cause the first stop block 34 of the folding mechanism 30 to locally collapse and deform itself after colliding with the first reinforcing piece 40a, which is beneficial to prolong the service life of the folding mechanism 30, thereby prolonging the service life of the entire electronic device 1000.

[0120] In addition, the shell device 100 in this embodiment can further include a fastener 50. The first reinforcing member 40a can further be provided with a mounting hole 45. The second groove wall 1142 of the first assembly groove 114 can further be provided with a mounting groove 114a. The fastener 50 can sequentially pass through the mounting hole 45 of the first reinforcing member 40a and the mounting groove 114a of the second groove wall 1142 to fix the first reinforcing member 40a to the first assembly groove 114. In this way, a part of the fastener 50 can be embedded in the first reinforcing member 40a, and another part of the fastener 50 can be embedded in the first middle frame 11, which on one hand is conducive to improving the connection reliability between the first reinforcing member 40a and the first middle frame 11, and on the other hand, the part of the fastener 50 embedded in the first middle frame 11 makes the first reinforcing member 40a, when bearing the impact force from the folding mechanism 30, a part of the impact load also transmitted to the first middle frame 11 through the fastener 50, so that the first middle frame 11 can also share a part of the impact load, which is conducive to improving the impact resistance of the first reinforcing member 40a.

[0121] In addition, when the electronic device 1000 is in the open state, the distance between the first reinforcing member 40a and the first stop block 34 of the folding mechanism 30 in the first direction can be less than or equal to 3 mm, that is, the first reinforcing member 40a can be arranged adjacent to the first stop block 34 of the folding mechanism 30, and the impact resistance effect of the first reinforcing member 40a is better, which is conducive to prolonging the service life of the electronic device 1000.

[0122] In some embodiments, referring to Figure 10b and Figure 12 , the first stop block 34 can further include a second stop surface 342. When the electronic device 1000 is in the closed state, the second stop surface 342 can be arranged away from the first reinforcing member 40a. When the electronic device 1000 switches from the closed state to the open state, the second middle frame 21 can be opened relative to the first middle frame 11 until the first stop block 34 abuts against part of the surface of the first middle frame 11 and the first stop block 34 abuts against part of the surface of the second middle frame 21. That is, the second stop surface 342 of the first stop block 34 can be used for stopping during the opening process of the electronic device 1000, so that the first middle frame 11 and the second middle frame 21 can be prevented from being opened too much and damaging the screen 200.

[0123] Figure 13 is a partial cross-sectional structure schematic view in an embodiment of the electronic device 1000 shown in Figure 1b along D-D. Figure 14 is a partial cross-sectional structure schematic view in an embodiment of the electronic device 1000 shown in Figure 1a along A-A.

[0124] As Figure 13 andFigure 14 As shown, the first reinforcing member 40a can also be partially cut or partially recessed on its peripheral side surface to form an avoiding space. For example, the third surface 43 can be partially recessed near the screen 200 to form a first avoiding space 431. In this way, the first avoiding space 431 can be used to avoid the screen 200, so that the screen 200 can be prevented from being lifted up by the first reinforcing member 40a, which can cause the screen 200 to be uneven and affect the user experience.

[0125] Exemplarily, the first reinforcing member 40a can also be partially recessed on the fourth surface 44 near the first connecting structure 31 and / or the hinge structure 33 of the folding mechanism 30 to form a second avoiding space 441. In this way, the second avoiding space 441 can be used to avoid the first connecting structure 31 and / or the hinge structure 33 of the folding mechanism 30, so that the overall structure of the electronic device 1000 is more compact. It should be understood that the shape of the first reinforcing member 40a in the embodiment can be adapted to the shape of other components adjacent thereto, that is, the shape of the first reinforcing member 40a can be various, which is not strictly limited in the present application.

[0126] Figure 15 is a schematic diagram of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1 along E-E. Figure 1a is a schematic diagram of a partial cross-sectional structure of an embodiment of the electronic device shown in FIG. 1 along E-E.

[0127] As shown, the second surface 42 of the first reinforcing member 40a can also be provided with a limiting protrusion 47. Figure 15 Also shown is the limiting protrusion 47 from another perspective. The limiting protrusion 47 can be disposed in a spaced manner with the mounting hole 45. The second groove wall 1142 of the first assembly groove 114 can also be provided with a matching groove 114b. The shape of the limiting protrusion 47 can be adapted to the shape of the matching groove 114b. The limiting protrusion 47 can be embedded in the matching groove 114b. The limiting protrusion 47 can be substantially in the shape of a columnar body. In this way, on the one hand, the limiting protrusion 47 can cooperate with the fastener 50 to enhance the connection stability of the first reinforcing member 40a and the first assembly groove 114; on the other hand, when the first reinforcing member 40a is subjected to an impact force from the folding mechanism 30, the limiting protrusion 47 can also share a part of the impact load, so that the first reinforcing member 40a can withstand a greater impact force, which is beneficial to improve the impact resistance of the first reinforcing member 40a. Figure 6

[0128] is a schematic diagram of the structure of the first reinforcing member 40a in another embodiment. Figure 16 is a schematic diagram of the structure of the first reinforcing member 40a in another embodiment. Figure 6 is a schematic diagram of the structure of the first reinforcing member 40a in another embodiment. Figure 17 is a schematic diagram of the structure of the first reinforcing member 40a in another embodiment. Figure 7b is a schematic diagram of the structure of the first reinforcing member 40a in another embodiment.

[0129] As shown, the second surface 42 of the first reinforcing member 40a can also be provided with a limiting protrusion 47. Figure 16 andFigure 17 The structure of the first reinforcing member 40a in the embodiment shown is substantially the same as that of the first reinforcing member 40a shown in FIG. 1, and the same parts will not be described again. Below, the differences between the two will be mainly introduced. The length extension direction of the limiting protrusion 47 of the first reinforcing member 40a in the embodiment can intersect the first direction. The included angle between the two can be a second included angle β. The angle of the second included angle β can be less than 90°. The opening of the second included angle β can be toward the first slot wall 1141 of the first assembly slot 114, that is, the opening of the second included angle β can be toward the third face 43 of the first reinforcing member 40a. Figure 6 The structure of the first reinforcing member 40a shown in FIG. 2 is substantially the same as that of the first reinforcing member 40a shown in FIG. 1, and the same parts will not be described again. Below, the differences between the two will be mainly introduced. The length extension direction of the limiting protrusion 47 of the first reinforcing member 40a in the embodiment can intersect the first direction. The included angle between the two can be a second included angle β. The angle of the second included angle β can be less than 90°. The opening of the second included angle β can be toward the first slot wall 1141 of the first assembly slot 114, that is, the opening of the second included angle β can be toward the third face 43 of the first reinforcing member 40a.

[0130] It can be understood that the surface of the first reinforcing member 40a in the embodiment toward the first assembly slot 114 (in the embodiment, that is, the second face 42 of the first reinforcing member 40a) is provided with the limiting protrusion 47. The length extension direction of the limiting protrusion 47 and the first direction can form a second included angle β with an angle less than 90°, and the opening of the second included angle β can be toward the first slot wall 1141 of the first assembly slot 114, that is, the opening of the second included angle β can be toward the third face 43 of the first reinforcing member 40a. In this way, when the first reinforcing member 40a is subjected to an impact force from the folding mechanism 30, the limiting protrusion 47 can also share a part of the impact load, so that the first reinforcing member 40a can withstand a greater impact force, which is beneficial to improve the impact resistance of the first reinforcing member 40a.

[0131] In some embodiments, glue can also be applied in the matching groove 114b of the first assembly slot 114, so that the limiting protrusion 47 of the first reinforcing member 40a can be more firmly embedded in the matching groove 114b of the first assembly slot 114, which is beneficial to improve the connection reliability of the first reinforcing member 40a and the first middle frame 11.

[0132] Figure 18 is Figure 6 is a structural schematic view of the first reinforcing member 40a shown in FIG. 2 in another view of another embodiment. Figure 19 is Figure 7b is a structural schematic view of the structure shown in FIG. 2 in another view of another embodiment.

[0133] As Figure 18 and Figure 19 the structure of the first reinforcing member 40a in the embodiment shown is substantially the same as that of the first reinforcing member 40a shown in FIG. 1, and the same parts will not be described again. Below, the differences between the two will be mainly introduced. The length extension direction of the limiting protrusion 47 of the first reinforcing member 40a in the embodiment can intersect the first direction. The included angle between the two can be a second included angle β. The angle of the second included angle β can be less than 90°. The opening of the second included angle β can be toward the first slot wall 1141 of the first assembly slot 114, that is, the opening of the second included angle β can be toward the third face 43 of the first reinforcing member 40a. Figure 6The first reinforcing member 40a shown has substantially the same structure, and the same parts will not be described again. The differences between the two will be mainly introduced below. The first reinforcing member 40a in the present embodiment can also not be provided with the mounting hole. The second surface 42 can also be provided with at least one connecting protrusion 48. The mounting groove 114a of the first assembly groove 114 can have a shape that is adapted to the shape of the connecting protrusion 48. The number of the mounting grooves 114a can be equal to the number of the connecting protrusions 48. At this time, the first reinforcing member 40a can be embedded and fixed to the second groove wall 1142 of the first assembly groove 114 through the cooperation between the connecting protrusion 48 and the mounting groove 114a. The connecting protrusion 48 can constitute the fastener 50 of the housing device 100. Exemplarily, the length extension directions of the plurality of connecting protrusions 48 can intersect.

[0134] It can be understood that, by forming the connecting protrusion 48 on the surface of the first reinforcing member 40a facing the second groove wall 1142 of the first assembly groove 114 (in the present embodiment, also the second surface 42 of the first reinforcing member 40a), and fixing the first reinforcing member 40a to the second groove wall 1142 through the cooperation between the connecting protrusion 48 and the mounting groove 114a, the present embodiment can replace the fixing scheme of fixing the first reinforcing member 40a to the second groove wall 1142 by additionally providing the fastener 50 (such as a screw, etc.), so that the housing device 100 does not need to be additionally provided with the fastener, which is beneficial to reducing the overall manufacturing cost of the electronic device 1000. Secondly, the connecting protrusion 48 in the present embodiment is directly formed on the surface of the first reinforcing member 40a, and the two can be integrally processed and formed, the preparation process is simpler, at the same time, the volume of the two can be made smaller, which can better adapt to the electronic device 1000 with a thinner wall thickness of the first middle frame 11, and the application is more widely.

[0135] Figure 20 is Figure 10a The structure shown is a part structure schematic view in another embodiment.

[0136] As Figure 20 shown, the structure of the electronic device 1000 in the present embodiment is substantially the same as the structure of the electronic device 1000 shown in Figure 10a The differences between the two will be introduced below. The first slot end wall 112 of the first mounting groove 111 of the first middle frame 11 in the present embodiment can also not be provided with the first assembly groove. The first reinforcing member 40a can also be directly fixed to the first slot end wall 112 of the first mounting groove 111. At this time, the first reinforcing member 40a can be located between the first slot side wall 116 and the first stop block 34 of the first mounting groove 111.

[0137] It should be noted that the features of the embodiments in the present application can be combined with each other without conflict, and any combination of the features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined as needed.

[0138] It should be noted that all the above-mentioned drawings are exemplary illustrations of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.

[0139] The above is only part of the embodiments of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A foldable electronic device (1000), characterized in that, The electronic device (1000) has an open state and a closed state, when the electronic device (1000) is in the open state, the first middle frame (11) and the second middle frame (21) are relatively flattened, the first slot side wall (116) of the first installation slot (111) faces the second middle frame (21), and the first reinforcing piece (40a) is located between the first slot side wall (116) and the first stop block (34) of the folding mechanism (30). When the electronic device (1000) is in the closed state, the first middle frame (11) and the second middle frame (21) are relatively folded, the first reinforcing piece (40a) is located between the first slot side wall (116) and the first stop block (34), and abuts against the first stop block (34); The yield strength of the first reinforcing piece (40a) is greater than the yield strength of the first middle frame (11), and / or the micro Vickers hardness of the first reinforcing piece (40a) is greater than the micro Vickers hardness of the first middle frame (11). The first slot end wall (112) is provided with a first assembly slot (114), and the first reinforcing piece (40a) is fixed in the first assembly slot (114) and at least partially located in the first assembly slot (114). ​ 2. The electronic device (1000) according to claim 1, characterized by ​ When the electronic device (1000) is in the open state, the first middle frame (11) and the second middle frame (21) are relatively flattened, the first slot wall (1141) of the first assembly slot (114) faces the second middle frame (21), and the first reinforcing piece (40a) is located between the first slot wall (1141) of the first assembly slot (114) and the first stop block (34) of the folding mechanism (30); When the electronic device (1000) is in the closed state, the first middle frame (11) and the second middle frame (21) are relatively folded, the first reinforcing piece (40a) is located between the first slot wall (1141) and the first stop block (34), and abuts against the first stop block (34).

3. The electronic device (1000) according to claim 2, characterized by The first reinforcing piece (40a) comprises a first face (41) arranged away from the first slot side wall (116), the first stop block (34) comprises a first stop face (341), and when the electronic device (1000) is in the open state, the first stop face (341) faces the screen (200); When the electronic device (1000) is switched from the open state to the closed state, the first middle frame (11) is folded relative to the second middle frame (21) until the first face (41) of the first reinforcing piece (40a) abuts against the first stop face (341) of the first stop block (34).

4. The electronic device (1000) according to claim 2 or 3, characterized by, When the electronic device (1000) is in the open state, the direction in which the first middle frame (11) points to the second middle frame (21) is a first direction, and in the first direction, the distance between the first reinforcing piece (40a) and the first stop block (34) of the folding mechanism (30) is less than or equal to 3 mm.

5. The electronic device (1000) according to any one of claims 2 to 4, characterized by, The first assembly slot (114) further comprises a second slot wall (1142) facing the first mounting slot (111), and the electronic device (1000) further comprises a fastener (50) for fixing the first reinforcing piece (40a) to the second slot wall (1142).

6. The electronic device (1000) according to claim 5, characterized by The first reinforcing piece (40a) is provided with a mounting hole (45), the second slot wall (1142) is provided with a mounting groove (114a), the mounting hole (45) communicates with the mounting groove (114a), a part of the fastener (50) is located in the mounting hole (45), and another part of the fastener (50) is located in the mounting groove (114a).

7. The electronic device (1000) according to claim 6, characterized by A first included angle (α) is formed between the center line of the mounting hole (45) and the bottom wall of the first mounting slot (111), the angle of the first included angle (α) is less than 90°, and the opening of the mounting hole (45) faces the screen (200).

8. The electronic device (1000) according to claim 6 or 7, characterized by, The first reinforcing member (40a) is provided with a limiting protrusion (47) which is arranged in a spaced manner with the mounting hole (45), and the second slot wall (1142) is further provided with a matching groove (114b) which is arranged in a spaced manner with the mounting groove (114a), and the limiting protrusion (47) is embedded in the matching groove (114b).

9. The electronic device (1000) according to claim 8, characterized by A second included angle (β) is formed between the center line of the limiting protrusion (47) and the first direction, the angle of the second included angle (β) is less than 90°, and the opening of the second included angle (β) faces the first slot wall (1141), and the first direction is the direction in which the first middle frame (11) points to the second middle frame (21) when the electronic device (1000) is in the open state.

10. The electronic device (1000) according to any one of claims 2 to 4, characterized by, The first assembly slot (114) further includes a second slot wall (1142) which faces the first mounting slot (111), and the surface of the first reinforcing member (40a) facing the second slot wall (1142) is provided with a connecting protrusion (48), and the second slot wall (1142) is provided with a mounting groove (114a), and the connecting protrusion (48) is embedded in the mounting groove (114a) to fix the first reinforcing member (40a) to the second slot wall (1142).

11. The electronic device (1000) according to any one of claims 1 to 10, characterized by The folding mechanism (30) includes a first connecting structure (31), a second connecting structure (32) and a hinge structure (33), the hinge structure (33) connects the first connecting structure (31) and the second connecting structure (32), at least part of the first connecting structure (31) is located in the first mounting slot (111) and connected to the first middle frame (11), and the side of the second middle frame (21) close to the first middle frame (11) is provided with a second mounting slot (211), and at least part of the second connecting structure (32) is located in the second mounting slot (211) and connected to the second middle frame (21). In the length extension direction of the folding mechanism (30), the hinge structure (33) includes oppositely arranged first and second ends (33a) and (33b), and the first stop block (34) is located on the side of the first end (33a) away from the second end (33b) and is fixedly connected to the first end (33a).

12. The electronic device (1000) according to claim 11, characterized by When the electronic device (1000) is in the open state, the direction in which the first middle frame (11) points to the second middle frame (21) is the first direction, and in the first direction, the width of the first stop block (34) is less than the width of the hinge structure (33).

13. The electronic device (1000) according to any one of claims 1 to 12, characterized by The difference between the yield strength of the first reinforcing member (40a) and the yield strength of the first middle frame (11) is greater than 50MPa, and / or the difference between the micro Vickers hardness of the first reinforcing member (40a) and the micro Vickers hardness of the first middle frame (11) is greater than 30HV.

14. The electronic device (1000) according to any one of claims 1 to 13, characterized by The yield strength of the first reinforcing member (40a) is less than or equal to the yield strength of the first stop block (34) of the folding mechanism (30), and / or the micro Vickers hardness of the first reinforcing member (40a) is less than or equal to the micro Vickers hardness of the first stop block (34) of the folding mechanism (30).

15. The electronic device (1000) according to any one of claims 1 to 14, characterized by, The material of the first reinforcing member (40a) is a titanium alloy material, an iron-based material, an aluminum-based material, a copper-based material, or a nickel-based material.

16. The electronic device (1000) according to any one of claims 1 to 15, characterized by The first middle frame (11) includes a main plate (11a), a first extension plate (11b), a second extension plate (11c), and a third extension plate (11d); The first extension plate (11b) and the second extension plate (11c) are connected to the same side of the main plate (11a) and are located at both ends of the main plate (11a), respectively. The third extension plate (11d) is connected between the first extension plate (11b) and the second extension plate (11c). The third extension plate (11d) also connects the main plate (11a) and has a height difference with the main plate (11a) in the thickness direction of the first middle frame (11). The main plate (11a), the first extension plate (11b), the second extension plate (11c), and the third extension plate (11d) enclose the first mounting slot (111). The surface of the first extension plate (11b) facing the second extension plate (11c) constitutes the first slot end wall (112). The surface of the main plate (11a) facing the first extension plate (11b) constitutes the first slot side wall (116).

17. A housing device (100), characterized by The first middle frame (11), the folding mechanism (30), the second middle frame (21), and the first reinforcing member (40a) are included. The folding mechanism (30) connects the first middle frame (11) and the second middle frame (21). The first middle frame (11) and the second middle frame (21) are unfolded or folded relative to each other to open or close the shell device (100). The first middle frame (11) is provided with a first mounting slot (111) near the side of the second middle frame (21). The first mounting slot (111) includes a first slot end wall (112), a second slot end wall (113), and a first slot side wall (116). The first slot end wall (112) and the second slot end wall (113) are arranged opposite to each other. The first slot side wall (116) is connected between the first slot end wall (112) and the second slot end wall (113). The first reinforcing member (40a) is located on the side of the first slot end wall (112) facing the second slot end wall (113) and is fixed to the first slot end wall (112). A part of the folding mechanism (30) is located in the first mounting slot (111). The length extension direction of the folding mechanism (30) includes a first end (301) and a second end (302) arranged opposite to each other. The first end (301) is provided with a first stop block (34). The shell device (100) includes an open state and a closed state, when the shell device (100) is in the open state, the first middle frame (11) and the second middle frame (21) are relatively flattened, the first slot side wall (116) of the first mounting slot (111) faces the second middle frame (21), and the first reinforcing piece (40a) is located between the first slot side wall (116) and the first stop block (34) of the folding mechanism (30); When the shell device (100) is in the closed state, the first middle frame (11) and the second middle frame (21) are relatively folded, the first reinforcing piece (40a) is located between the first slot side wall (116) and the first stop block (34), and abuts against the first stop block (34). The yield strength of the first reinforcing piece (40a) is greater than the yield strength of the first middle frame (11), and / or the micro Vickers hardness of the first reinforcing piece (40a) is greater than the micro Vickers hardness of the first middle frame (11).

18. The housing device (100) according to claim 17, characterized in that The first slot end wall (112) is provided with a first assembly slot (114), the first reinforcing piece (40a) is fixed in the first assembly slot (114) and at least partially located in the first assembly slot (114); When the shell device (100) is in the open state, the first middle frame (11) and the second middle frame (21) are relatively flattened, the first slot wall (1141) of the first assembly slot (114) faces the second middle frame (21), and the first reinforcing piece (40a) is located between the first slot wall (1141) of the first assembly slot (114) and the first stop block (34) of the folding mechanism (30); When the shell device (100) is in the closed state, the first middle frame (11) and the second middle frame (21) are relatively folded, the first reinforcing piece (40a) is located between the first slot wall (1141) and the first stop block (34), and abuts against the first stop block (34).

19. The housing device (100) according to claim 18, characterized in that The side of the shell device (100) for mounting the screen (200) is the mounting side (100a) of the shell device (100), the first reinforcing piece (40a) includes a first face (41) away from the first slot wall (1141), the first stop block (34) includes a first stop face (341), when the shell device (100) is in the open state, the first stop face (341) faces the mounting side (100a), and when the shell device (100) is switched from the open state to the closed state, the first middle frame (11) is folded relative to the second middle frame (21) until the first face (41) of the first reinforcing piece (40a) abuts against the first stop face (341) of the first stop block (34).

20. The housing device (100) according to claim 18 or 19, characterized in that When the shell device (100) is in the open state, a direction in which the first middle frame (11) points to the second middle frame (21) is a first direction, and in the first direction, the first reinforcing member (40a) is less than or equal to 3 mm away from the first stop block (34) of the folding mechanism (30).

21. The housing device (100) according to any one of claims 18 to 20, characterized in that The first assembly groove (114) further comprises a second groove wall (1142) facing the first mounting groove (111), and the shell device (100) further comprises a fastener (50) fixing the first reinforcing member (40a) to the second groove wall (1142).

22. The housing device (100) according to claim 21, characterized in that The first reinforcing member (40a) is provided with a mounting hole (45), the second groove wall (1142) is provided with a mounting groove (114a), the mounting hole (45) communicates with the mounting groove (114a), a part of the fastener (50) is located in the mounting hole (45), and another part of the fastener (50) is located in the mounting groove (114a).

23. The housing device (100) according to claim 22, characterized in that A first included angle (α) is formed between a center line of the mounting hole (45) and a bottom wall of the first mounting groove (111), the first included angle (α) is less than 90°, and an opening of the mounting hole (45) faces the mounting side (100a) of the shell device (100).

24. The housing device (100) according to any one of claims 18 to 23, characterized in that A difference between a yield strength of the first reinforcing member (40a) and a yield strength of the first middle frame (11) is greater than 50 MPa, and / or a difference between a micro Vickers hardness of the first reinforcing member (40a) and a micro Vickers hardness of the first middle frame (11) is greater than 30 HV.

25. The housing device (100) according to any one of claims 18 to 23, characterized in that The yield strength of the first reinforcing member (40a) is less than or equal to the yield strength of the first stop block (34) of the folding mechanism (30), and / or the micro Vickers hardness of the first reinforcing member (40a) is less than or equal to the micro Vickers hardness of the first stop block (34) of the folding mechanism (30).

26. The housing device (100) according to any one of claims 18 to 25, characterized in that The material of the first reinforcing member (40a) is a titanium alloy material, an iron-based material, an aluminum-based material, a copper-based material, or a nickel-based material.

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