Middle frame assembly and folding electronic equipment

Abstract

The invention discloses a middle frame assembly and folding type electronic equipment, and belongs to the technical field of folding type electronic equipment frames. The frame assembly comprises a plurality of borders which are sequentially connected end to end, and hollow cavities are formed among the borders. And the structural reinforcer is embedded in the frame and extends along the length direction of the frame. Compared with a traditional middle frame assembly with low strength and rigidity, the overall structural strength is improved, and the thickness of the whole machine cannot be affected. According to the folding type electronic equipment, the structural reinforcer is embedded in the frame and extends along the length direction of the frame, so that the structural strength and the stability of the middle frame are enhanced, faults such as bending and breakage of the middle frame are prevented, and the normal use and the service life of the folding type electronic equipment are ensured.

Description

Technical Field

[0001] This application relates to the technical field of folding electronic device frames, and particularly to a middle frame assembly and a folding electronic device. Background Art

[0002] A folding mobile phone is a mobile terminal device that can realize screen unfolding and folding through a flexible screen and a hinge mechanism. Folding mobile phones have the advantages of variable screen size, portability, and rich functions, and have received extensive attention and research. However, the design and manufacture of folding mobile phones also face many challenges, one of which is how to ensure the structural strength and stability of folding mobile phones.

[0003] The middle frame of a folding mobile phone is an important component connecting the screen and the hinge. It not only needs to bear the weight and torque of the screen and the hinge, but also provides installation space for functional modules such as batteries, cameras, and fingerprint recognition. To meet the requirements of weight reduction and thickness reduction of folding mobile phones, a disassembly scheme is adopted in the middle frame battery compartment area, that is, the middle frame is divided into two parts, one part is fixed on the screen, and the other part is fixed on the hinge, and the two parts are connected by connecting parts such as pins or screws. This can reduce the weight and thickness of the middle frame and improve the battery capacity and battery life.

[0004] However, this disassembly scheme also brings new problems, that is, the structural strength and stability of the middle frame are reduced. Since large holes need to be opened in the middle frame battery compartment area, the middle frame has a slender frame structure. Especially in the case of an outward folding middle frame, the slender frame is the weakest and is prone to bending, breaking, loosening and other failures, affecting the normal use and life of the folding mobile phone. Summary of the Invention

[0005] This application provides a middle frame assembly and a folding electronic device. This middle frame assembly is used to ensure the structural strength of the frame without affecting the thinness and lightness of the electronic device.

[0006] To achieve the above object, the embodiments of this application adopt the following technical solutions:

[0007] In a first aspect, a middle frame assembly is provided. The middle frame assembly is for a folding electronic device. The middle frame assembly includes: a plurality of frames, the plurality of frames are connected end to end in sequence, and a hollow cavity is formed between the plurality of frames; a structural reinforcement member, the structural reinforcement member is embedded inside the frame and extends along the length direction of the frame.

[0008] The middle frame assembly provided by the embodiments of the present application can enhance the strength and stiffness of the middle frame assembly by embedding a structural reinforcement inside the frame, improve the anti-deformation ability of the middle frame assembly, and improve the reliability and durability of the middle frame assembly. The structural reinforcement can effectively improve the mechanical properties of the middle frame assembly such as tensile, compressive, bending, and torsional resistance, thereby preventing damage phenomena such as fracture, deformation, and wear of the middle frame assembly during the deformation process of the foldable electronic device, and ensuring the stability and durability of the middle frame assembly. Compared with the traditional middle frame assembly with lower strength and stiffness, the overall structural strength is improved, and the thickness of the whole machine is not affected. By embedding the structural reinforcement inside the frame and extending along the length direction of the frame, the structural strength and stability of the middle frame are enhanced, preventing faults such as bending and fracture of the middle frame, and ensuring the normal use and lifespan of the foldable electronic device.

[0009] In one embodiment, an installation groove is provided inside the frame, and the installation groove extends along the length direction of the frame, and the structural reinforcement is installed in the installation groove. By providing an installation groove inside the frame, a fixed position and direction can be provided for the structural reinforcement, so that the relative position between the structural reinforcement and the frame remains consistent, improving the structural stability of the middle frame assembly.

[0010] In one embodiment, the installation groove forms a notch on the side wall of the frame, and the structural reinforcement is installed in the installation groove through the notch. By forming a notch on the side wall of the frame, the structural reinforcement can be conveniently inserted into the installation groove from the outside of the frame, improving the installation efficiency and convenience of the middle frame assembly.

[0011] In one embodiment, the installation groove forms a notch on the upper side wall of the frame to facilitate the installation and disassembly by the staff.

[0012] In one embodiment, the structural reinforcement is a reinforcing sheet, the reinforcing sheet extends along the length direction of the frame, the plate surface direction of the reinforcing sheet is perpendicular to the extension surface of the foldable electronic device, and the groove width of the installation groove is adapted to the thickness of the reinforcing sheet. By setting the structural reinforcement as a reinforcing sheet, the structural reinforcement has high stiffness and strength in the longitudinal direction, can effectively support the structure of the frame in the direction where the frame is easily bent and deformed, prevent the bending and deformation of the frame, and ensure the flatness of the frame. By making the plate surface direction of the reinforcing sheet perpendicular to the extension surface of the foldable electronic device, the reinforcing sheet can keep the same folding direction as the screen and hinge of the foldable electronic device, and can also reduce the friction and conflict between the reinforcing sheet and the screen and hinge, protect the core components of the foldable electronic device, and improve the safety and aesthetics of the foldable electronic device.

[0013] In one embodiment, a bent section is provided on one side of the reinforcing sheet close to the notch, and the bent section is perpendicular to the plane direction of the reinforcing sheet. By providing the bent section on one side of the reinforcing sheet close to the notch, the reinforcing sheet can be more easily inserted into or removed from the mounting groove through the notch, simplifying the installation or repair process of the reinforcing sheet and improving the installation or repair efficiency of the reinforcing sheet. By making the bent section perpendicular to the plane direction of the reinforcing sheet, the bent section can provide an additional support in the thickness direction of the reinforcing sheet, increasing the stiffness and stability of the reinforcing sheet, preventing the reinforcing sheet from bending and deforming during use, and ensuring the integrity and continuity of the reinforcing sheet.

[0014] In one embodiment, a relief recess is provided on the side wall of the frame close to the front side of the foldable electronic device. The relief recess communicates with the notch, and the direction of the relief recess is adapted to the bending direction of the bent section. The bent section is received in the relief recess. By receiving the bent section in the relief recess, the bent section can be hidden inside the frame, reducing the space occupied by the bent section in the foldable electronic device and improving the thinness, lightness and portability of the foldable electronic device.

[0015] In one embodiment, the bent section is bent towards the inner side of the middle frame assembly. By making the bent section bend towards the inner side of the middle frame assembly, the bent section can be further away from the outer side of the foldable electronic device, reducing the space occupied by the bent section in the foldable electronic device and improving the thinness, lightness and portability of the foldable electronic device.

[0016] In one embodiment, there are two bent sections, namely a first bent section towards the inner side of the middle frame assembly and a second bent section towards the outer side of the middle frame assembly, further improving the structural strength.

[0017] In one embodiment, the middle frame assembly further includes a connecting member, and the connecting member sequentially passes through the frame and the structural reinforcement to connect the structural reinforcement in the mounting groove.

[0018] In one embodiment, first through holes are provided on the side walls on both sides of the mounting groove, the first through holes on both sides of the mounting groove are correspondingly arranged, second through holes are provided on the structural reinforcement, and the second through holes are correspondingly arranged with the first through holes. The connecting member is passed through the second through hole and the two first through holes. By providing corresponding first through holes and second through holes, the connecting member can be aligned in the width direction of the frame and the structural reinforcement, increasing the symmetry and balance of the connecting member, preventing the connecting member from shifting and tilting during use, and ensuring the uniformity and consistency of the connecting member.

[0019] In one embodiment, the connecting member, the second through hole and the first through hole on one side of the mounting groove are all multiple and are arranged at intervals along the length direction of the frame. By providing multiple connecting members, the stability and balance of the structural reinforcement can be increased, preventing the structural reinforcement from shifting and tilting during use and ensuring the parallelism and symmetry of the structural reinforcement.

[0020] In one embodiment, the structural reinforcement is made of stainless steel.

[0021] The second aspect of the present application provides a foldable electronic device, which includes two bodies and a flipping mechanism installed between the two bodies. At least one body includes the above-mentioned middle frame assembly, and the frame is the frame on the side of the body close to the flipping mechanism.

[0022] Through the above technical solution, since the foldable electronic device includes the above-mentioned middle frame assembly, it at least has all the beneficial effects of the middle frame assembly, which will not be elaborated here. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the middle frame assembly in the prior art;

[0024] Figure 2 It is a schematic structural diagram of the middle frame assembly provided by the embodiment of the present application;

[0025] Figure 3 For Figure 2 A partial enlarged view of area A in

[0026] Figure 4 It is a schematic structural diagram of the middle frame assembly with some parts removed provided by the embodiment of the present application;

[0027] Figure 5 It is a schematic structural diagram of the structural reinforcement provided by the embodiment of the present application;

[0028] Figure 6 It is a schematic cross-sectional view of the middle frame assembly provided by the embodiment of the present application;

[0029] Figure 7 For Figure 6 A partial enlarged view of area B in

[0030] Figure 8 It is a schematic structural diagram of the middle frame assembly with a first bending section and a second bending section provided on the reinforcing sheet according to the embodiment of the present application;

[0031] Figure 9 For Figure 8 A partial enlarged view of area C in

[0032] Figure 10 It is a schematic structural diagram of the middle frame assembly with a first bending section and a second bending section provided on the reinforcing sheet and with some parts removed according to the embodiment of the present application;

[0033] Figure 11 It is a schematic structural diagram of the reinforcing sheet with a first bending section and a second bending section provided according to the embodiment of the present application;

[0034] Figure 12 Schematic cross-sectional view of a middle frame assembly provided in an embodiment of the present application, with a first bending section and a second bending section provided on a reinforcing sheet;

[0035] Figure 13 is Figure 12 Local enlarged view of area D in the figure;

[0036] Figure 14 Schematic structural view of a middle frame assembly provided in an embodiment of the present application, where the reinforcing sheet and the installation groove are fixed by bonding;

[0037] Figure 15 is Figure 14 Local enlarged view of area E in the figure;

[0038] Figure 16 Schematic structural view of a middle frame assembly provided in an embodiment of the present application, with some components removed, where the reinforcing sheet and the installation groove are fixed by bonding;

[0039] Figure 17 Schematic structural view of a reinforcing sheet provided in an embodiment of the present application, which is fixed to the installation groove by bonding;

[0040] Figure 18 Schematic cross-sectional view of a middle frame assembly provided in an embodiment of the present application, where the reinforcing sheet and the installation groove are fixed by bonding;

[0041] Figure 19 is Figure 18 Local enlarged view of area F in the figure;

[0042] Figure 20 Schematic structural view of a foldable electronic device provided in an embodiment of the present application;

[0043] Figure 21 Schematic structural view of a foldable electronic device provided in an embodiment of the present application in a semi-expanded state;

[0044] Among them, the meanings represented by each attached reference numeral are as follows:

[0045] 10, frame;

[0046] 10, frame; 11, installation groove; 12, notch; 13, relief recess; 14, first through hole;

[0047] 20, hollow cavity;

[0048] 30, structural reinforcement; 31, reinforcing sheet; 311, bending section; 32, second through hole;

[0049] 40, connecting piece;

[0050] 1, middle frame assembly;

[0051] 2. Body;

[0052] 3. Flipping mechanism. Detailed implementation manner

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the implementation manners of this application in detail with reference to the accompanying drawings.

[0054] It should be understood that in the description of this application, it is necessary to understand that the orientation or positional relationship indicated by terms such as "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application.

[0055] Terms such as "first", "second", "third", "fourth", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. For example, the first pushing part and the second pushing part are only for distinguishing different pushing parts and do not limit their sequence. The first pushing part can also be named the second pushing part, and the second pushing part can also be named the first pushing part without departing from the scope of the described embodiments. And terms such as "first", "second", "third", "fourth", etc. do not necessarily limit that the indicated features are different.

[0056] In the embodiments of this application, unless otherwise clearly specified and limited, terms such as "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances. In the description of the embodiments of this application, "a plurality of" means two or more unless otherwise clearly specifically limited.

[0057] In the embodiments of this application, " / and" is only a description of the association relationship of associated objects, indicating that three relationships can exist; for example, A / and B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates that the front and rear associated objects are in an "or" relationship.

[0058] It should be noted that in the embodiments of the present application, words such as "in one embodiment", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in one embodiment", "exemplarily", or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "in one embodiment", "exemplarily", and "for example" is intended to present relevant concepts in a specific manner.

[0059] In order to make the objectives, technical solutions, and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0060] A folding mobile phone is a mobile terminal device that can achieve screen unfolding and folding through a flexible screen and a hinge mechanism. Folding mobile phones have the advantages of variable screen size, easy portability, and rich functions, and have received extensive attention and research. However, the design and manufacture of folding mobile phones also face many challenges, one of which is how to ensure the structural strength and stability of folding mobile phones.

[0061] The middle frame of a folding mobile phone is an important component connecting the screen and the hinge. It not only needs to bear the weight and torque of the screen and the hinge, but also needs to provide installation space for functional modules such as batteries, cameras, and fingerprint recognition. In order to meet the requirements of weight reduction and thickness reduction of folding mobile phones, a disassembly scheme is adopted in the middle frame battery compartment area, that is, the middle frame is divided into two parts, one part is fixed on the screen, and the other part is fixed on the hinge, and the two parts are connected by connecting parts such as pins or screws. This can reduce the weight and thickness of the middle frame and improve the battery capacity and battery life.

[0062] However, this disassembly scheme also brings new problems, that is, the structural strength and stability of the middle frame are reduced. Since large holes need to be opened in the middle frame battery compartment area, a slender frame structure exists in the middle frame. See Figure 1 As shown, especially the slender frame 10" of the middle frame in the outward folding form is the weakest and is prone to failures such as bending, breaking, and loosening, affecting the normal use and service life of the folding mobile phone.

[0063] Specifically, please refer to Figures 2 to 21As shown in the figure, the middle frame assembly of the embodiment of the present application is used for a foldable electronic device. The middle frame assembly includes a structural reinforcement member 30 and a plurality of side frames 10. The plurality of side frames 10 are connected end to end in sequence, and a hollow cavity 20 is formed between the plurality of side frames 10. The structural reinforcement member 30 is embedded inside the side frame 10 and extends along the length direction of the side frame 10. By embedding the structural reinforcement member 30 inside the side frame 10, the strength and stiffness of the middle frame assembly can be enhanced, the anti-deformation ability of the middle frame assembly is improved, and the reliability and durability of the middle frame assembly are improved. The structural reinforcement member 30 can effectively improve the mechanical properties such as tensile, compressive, bending, and torsional resistance of the middle frame assembly, thereby preventing damage phenomena such as fracture, deformation, and wear of the middle frame assembly during the deformation process of the foldable electronic device, and ensuring the stability and durability of the middle frame assembly. Compared with the traditional middle frame assembly with lower strength and stiffness, the overall structural strength is improved, and it does not affect the thickness of the whole machine. By embedding the structural reinforcement member 30 inside the side frame 10 and extending along the length direction of the side frame 10, the structural strength and stability of the middle frame are enhanced, faults such as bending and fracture of the middle frame are prevented, and the normal use and lifespan of the foldable electronic device are ensured.

[0064] Among them, the structural reinforcement member 30 can be made of a material with a structural strength greater than that of the material of the side frame 10. For example, the structural reinforcement member 30 can be made of materials such as stainless steel, carbon fiber, and alloy to improve the compressive, tensile, torsional, etc. properties of the middle frame, resist various stresses and strains generated during the folding process, and extend the service life of the middle frame.

[0065] See Figures 4 to 7 , Figures 10 to 13 and Figures 16 to 19As shown, an installation groove 11 is provided inside the frame 10 in the embodiment of the present application. The installation groove 11 extends along the length direction of the frame 10, and the structural reinforcement 30 is installed in the installation groove 11. By providing the installation groove 11 inside the frame 10, a fixed position and direction can be provided for the structural reinforcement 30, so that the relative position between the structural reinforcement 30 and the frame 10 remains consistent, improving the structural stability of the middle frame assembly. The shape and size of the installation groove 11 are adapted to those of the structural reinforcement 30, so that the structural reinforcement 30 can be completely embedded in the installation groove 11, thus avoiding the possibility of the structural reinforcement 30 moving, shaking or falling off during the deformation process of the middle frame assembly, and ensuring the structural strength of the middle frame assembly. Specifically, by installing the structural reinforcement 30 in the installation groove 11, a tight connection can be formed between the structural reinforcement 30 and the frame 10, increasing the contact area between the structural reinforcement 30 and the frame 10, and improving the connection strength of the middle frame assembly. The structural reinforcement 30 can be fixed to the installation groove 11 in various ways, such as adhesion, welding, snap fit, threading, etc., so that the force can be effectively transmitted and dispersed between the structural reinforcement 30 and the frame 10, thereby improving the tensile, compressive, bending, torsional and other mechanical properties of the middle frame assembly, and enhancing the reliability and durability of the middle frame assembly. By extending the installation groove 11 along the length direction of the frame 10, the connection between the structural reinforcement 30 and the frame 10 can be made more uniform and continuous, avoiding the gap or fracture between the structural reinforcement 30 and the frame 10, and improving the overall performance of the middle frame assembly. The installation groove 11 can extend along the entire length or part of the length of the frame 10, so that the structural reinforcement 30 can cover the key parts of the frame 10, thereby improving the strength and stiffness of the middle frame assembly, preventing the middle frame assembly from bending or twisting during the deformation process of the foldable electronic device, and ensuring the stability and durability of the middle frame assembly.

[0066] See Figure 4 , Figure 10 and Figure 16As shown, the installation slot 11 in the embodiment of the present application forms a notch 12 on the side wall of the frame 10, and the structural reinforcement 30 is installed in the installation slot 11 through the notch 12. By forming the notch 12 on the side wall of the frame 10, the structural reinforcement 30 can be conveniently inserted into the installation slot 11 from the outside of the frame 10, improving the installation efficiency and convenience of the middle frame assembly. Compared with the installation method that requires disassembling the frame 10 or using special tools, this installation method has higher efficiency and practicability, can adapt to different installation occasions and conditions, and improves the adaptability and compatibility of the middle frame assembly. In one embodiment, forming the notch 12 on the side wall of the frame 10 can form a snap connection between the structural reinforcement 30 and the frame 10, increasing the connection firmness between the structural reinforcement 30 and the frame 10 and improving the connection stability of the middle frame assembly. The snap connection can be achieved through the relative position and shape of the notch 12 and the installation slot 11, so that the structural reinforcement 30 can be firmly clamped by the notch 12 in the installation slot 11, thus avoiding the possibility of the structural reinforcement 30 loosening or falling off during the deformation process of the middle frame assembly and ensuring the connection integrity of the middle frame assembly.

[0067] In addition, by forming the notch 12 on the side wall of the frame 10, a hidden connection can be formed between the structural reinforcement 30 and the frame 10, reducing the exposed part between the structural reinforcement 30 and the frame 10 and improving the protection of the middle frame assembly. The hidden connection can be achieved through the size and depth of the notch 12 and the installation slot 11, so that the structural reinforcement 30 can be completely or partially covered by the side wall of the frame 10 in the installation slot 11, thereby reducing the impact of the structural reinforcement 30 on the overall middle frame assembly. At the same time, this hidden connection can also prevent the direct contact between the structural reinforcement 30 and the outside world, thus reducing the pollution and damage suffered by the structural reinforcement 30 and improving the protection and durability of the middle frame assembly.

[0068] Among them, the notch can be designed according to the shape and size of the structural reinforcement 30, so that the structural reinforcement 30 can smoothly pass through the notch and enter the installation groove 11, thereby reducing the friction and resistance during the installation process and lowering the installation time and cost. The opening method can be to open a notch on the upper side wall of the frame 10, and the structural reinforcement 30 is inserted into the installation groove 11 from above the frame 10. It can also be to open a notch on the outer side wall of the frame 10, and the structural reinforcement 30 is inserted into the installation groove 11 from the left side of the frame 10. The advantage of this kind of notch is that the connection between the structural reinforcement 30 and the frame 10 is relatively tight. It can also be to open a notch on the front side wall of the frame 10, and the structural reinforcement 30 is inserted into the installation groove 11 from the front side of the frame 10. The advantage of this kind of notch is that the connection between the structural reinforcement 30 and the frame 10 is relatively hidden. Among them, the upper side wall of the above-mentioned frame 10 refers to the side wall on the side where the main screen of the electronic device is located. When the folding device is in the folded state, it refers to the side wall on the side where the front screen is located. The outer side wall of the frame 10 refers to the side wall facing the outside of the electronic device. The front side wall of the frame 10 refers to the upper side wall when the electronic device is in use.

[0069] Preferably, in the embodiment of the present application, the installation groove 11 forms a notch 12 on the upper side wall of the frame 10 to facilitate the installation and disassembly by the staff.

[0070] See Figure 2 、 Figures 5 to 7 、 Figure 8 、 Figures 11 to 13 、 Figure 14 and Figures 17 to 19As shown in the figure, the structural reinforcement 30 in the embodiment of the present application is a reinforcing sheet 31. The reinforcing sheet 31 extends along the length direction of the frame 10. The plate surface direction of the reinforcing sheet 31 is perpendicular to the extension surface of the foldable electronic device. The groove width of the installation groove 11 is adapted to the thickness of the reinforcing sheet 31. Among them, the extension surface of the foldable electronic device refers to the plane where the width and length of the foldable electronic device are located. By setting the structural reinforcement 30 as the reinforcing sheet 31, the structural reinforcement 30 has high stiffness and strength in the longitudinal direction, can effectively support the structure of the frame 10 in the direction where the frame 10 is easily bent and deformed, prevent the bending and deformation of the frame 10, and ensure the flatness of the frame 10. The sheet-like characteristic of the reinforcing sheet 31 can effectively resist the bending moment and shear force generated during the folding process, thereby protecting the integrity and stability of the frame 10. By allowing the reinforcing sheet 31 to extend along the length direction of the frame 10, the reinforcing sheet 31 can cover the entire length of the frame 10, increase the bending resistance of the frame 10, prevent stress concentration and fracture of the frame 10 during the folding process, and ensure the integrity and continuity of the frame 10. While structural reinforcements 30 of other shapes may have insufficient contact area in their length direction, resulting in uneven stress distribution of the frame 10 and the risk of stress concentration and fracture; the sheet-like characteristic of the reinforcing sheet 31 enables it to provide a large contact area in its length direction, form good bonding and force transmission with the frame 10, thereby improving the bearing capacity and durability of the frame 10.

[0071] Specifically, in the embodiment applied to the foldable electronic device, by making the plate surface direction of the reinforcing sheet 31 perpendicular to the extension surface of the foldable electronic device, the reinforcing sheet 31 can be kept in the same folding direction as the screen and hinge of the foldable electronic device, and the friction and conflict between the reinforcing sheet 31 and the screen and hinge can also be reduced, protecting the core components of the foldable electronic device and improving the safety and aesthetics of the foldable electronic device. The sheet-like characteristic of the reinforcing sheet 31 enables it to provide a small thickness in its plate surface direction, reducing the space occupied by the foldable electronic device, thereby improving the thinness, lightness and portability of the foldable electronic device. By making the groove width of the installation groove 11 adapted to the thickness of the reinforcing sheet 31, the reinforcing sheet 31 can be tightly embedded in the installation groove 11, preventing the reinforcing sheet 31 from loosening or sliding during use, ensuring the stable connection between the reinforcing sheet 31 and the frame 10, and increasing the stiffness and stability of the middle frame.

[0072] See Figure 2 、 Figures 5 to 7As shown in the figure, a bending section 311 is provided on one side of the reinforcing piece 31 in the embodiment of the present application close to the notch 12, and the bending section 311 is perpendicular to the plate surface direction of the reinforcing piece 31. By providing the bending section 311 on one side of the reinforcing piece 31 close to the notch 12, the reinforcing piece 31 can be more easily inserted into or removed from the mounting groove 11 through the notch 12, simplifying the installation or maintenance process of the reinforcing piece 31 and improving the installation or maintenance efficiency of the reinforcing piece 31. By making the bending section 311 perpendicular to the plate surface direction of the reinforcing piece 31, the bending section 311 can provide an additional support in the thickness direction of the reinforcing piece 31, increasing the stiffness and stability of the reinforcing piece 31, preventing the bending and deformation of the reinforcing piece 31 during use, and ensuring the integrity and continuity of the reinforcing piece 31.

[0073] In other embodiments of the present application, parameters such as the angle, length, and thickness of the bending section 311 can be designed and optimized according to the characteristics of the reinforcing piece 31 to improve the bearing capacity and durability of the bending section 311 and prevent the damage or detachment of the bending section 311. For example, the angle of the bending section 311 can be 90 degrees, 120 degrees, 150 degrees, etc. to adapt to different force directions; the length of the bending section 311 can be adjusted according to the width of the reinforcing piece 31 to ensure that the bending section 311 can cover the edge or center of the reinforcing piece 31 to improve the bending resistance of the reinforcing piece 31; the thickness of the bending section 311 can be adjusted according to the thickness of the reinforcing piece 31 to ensure that the bending section 311 can match the thickness of the reinforcing piece 31 to improve the stiffness of the reinforcing piece 31.

[0074] See Figure 6 and Figure 7 As shown in the figure, a relief recess 13 is provided on the side wall of the frame 10 in the embodiment of the present application close to the front side of the foldable electronic device. The relief recess 13 is communicated with the notch 12, and the direction of the relief recess 13 is adapted to the bending direction of the bending section 311, and the bending section 311 is received in the relief recess 13. By providing the relief recess 13 on the side wall of the upper side of the frame 10 and communicating the relief recess 13 with the notch 12, an additional space is provided for the bending section 311, enabling the bending section 311 to be more easily inserted into or removed from the mounting groove 11 through the notch 12. By receiving the bending section 311 in the relief recess 13, the bending section 311 can be hidden inside the frame 10, reducing the space occupied by the bending section 311 in the foldable electronic device and improving the thinness, lightness, and portability of the foldable electronic device. The length of the bending section 311 can be adjusted according to the depth of the relief recess 13 to ensure that the bending section 311 can be completely embedded in the relief recess 13, preventing the protrusion or exposure of the bending section 311 and affecting the function of the foldable electronic device.

[0075] On one side of the reinforcing piece 31 in the embodiment of the present application close to the notch 12, a plurality of bending segments 311 are provided. The plurality of bending segments 311 are arranged at intervals along the length direction of the reinforcing piece 31, and each bending segment 311 is perpendicular to the plate surface direction of the reinforcing piece 31. And on the side wall of the upper side of the frame 10 in the embodiment of the present application, there are a plurality of relief recesses 13. The plurality of relief recesses 13 are arranged at intervals along the length direction of the frame 10. The plurality of relief recesses 13 communicate with the notch 12, and the direction of each relief recess 13 is adapted to the bending direction of the bending segment 311. The plurality of bending segments 311 are received in the plurality of relief recesses 13, so as to realize the limit in the length direction of the reinforcing structural member. By making the direction of each relief recess 13 adapted to the bending direction of the bending segment 311, the plurality of bending segments 311 can be stuck in the plurality of relief recesses 13, increasing the connection strength between the frame 10 and the reinforcing piece 31, preventing the loosening and falling off of the reinforcing piece 31 during use, and ensuring the stability and reliability of the frame 10 and the reinforcing piece 31.

[0076] In the embodiment of the present application, the bending segment 311 bends towards the inner side of the middle frame assembly. By making the bending segment 311 bend towards the inner side of the middle frame assembly, the bending segment 311 can be further away from the outer side of the folding electronic device, reducing the space occupied by the bending segment 311 in the folding electronic device, and improving the thinness, lightness and portability of the folding electronic device.

[0077] See Figure 8 、 Figures 11 to 13 、 Figure 14 and Figures 17 to 19 As shown in, in the embodiment of the present application, there are two bending segments 311, which are respectively a first bending segment towards the inner side of the middle frame assembly and a second bending segment towards the outer side of the middle frame assembly. By setting the bending segment 311 to be two, the bending segment 311 can provide support in two directions, increasing the stiffness and stability of the bending segment 311, preventing the bending and deformation of the bending segment 311 during use, and ensuring the integrity and continuity of the bending segment 311. By setting the first bending segment and the second bending segment, the structural strength of the structural reinforcement 30 is further improved, increasing the stiffness and stability of the middle frame assembly.

[0078] See Figure 2 and Figure 8As shown in the figure, the middle frame assembly in the embodiment of the present application further includes a connecting member 40. The connecting member 40 sequentially passes through the frame 10 and the structural reinforcement 30 to connect the structural reinforcement 30 in the installation groove 11. By providing the connecting member 40, the structural reinforcement 30 can be more firmly fixed in the installation groove 11, increasing the connection strength between the structural reinforcement 30 and the frame 10, and improving the stiffness and stability of the middle frame assembly. The connecting member 40 can reduce the voids and gaps between the connecting member 40 and the frame 10 and the structural reinforcement 30, prevent the connecting member 40 from loosening or sliding during use, and ensure a stable connection between the connecting member 40 and the frame 10 and the structural reinforcement 30.

[0079] Among them, the connecting member 40 can be a pin, a screw, etc.

[0080] See Figure 3 , Figure 4 , Figure 9 and Figure 10 As shown in the figure, first through holes 14 are provided on the side walls on both sides of the installation groove 11 in the embodiment of the present application. The first through holes 14 on both sides of the installation groove 11 are correspondingly arranged. Second through holes 32 are provided on the structural reinforcement 30, and the second through holes 32 are correspondingly arranged with the first through holes 14. The connecting member 40 is inserted into the second through hole 32 and the two first through holes 14. By providing the corresponding first through holes 14 and second through holes 32, the connecting member 40 can be aligned in the width direction of the frame 10 and the structural reinforcement 30, increasing the symmetry and balance of the connecting member 40, preventing the connecting member 40 from shifting and tilting during use, and ensuring the uniformity and consistency of the connecting member 40.

[0081] In the embodiment of the present application, the connecting member 40, the second through hole 32, and the first through hole 14 on one side of the installation groove 11 are all multiple and are arranged at intervals along the length direction of the frame 10. By providing a plurality of connecting members 40, the stability and balance of the structural reinforcement 30 can be increased, preventing the structural reinforcement 30 from shifting and tilting during use, and ensuring the parallelism and symmetry of the structural reinforcement 30.

[0082] The structural reinforcement 30 in the embodiment of the present application is a stainless steel part. In addition to stainless steel materials, the structural reinforcement 30 can also be other metal or non-metal materials, such as titanium alloy, glass fiber reinforced plastic, etc. Among them, the processing method of the stainless steel part can be stamping or MIM process. MIM is a process of mixing metal powder with a binder, then injection molding, and then degreasing and sintering to produce metal parts with complex shapes and high performance.

[0083] Among them, there are many types of electronic devices that the middle frame component can be used for. Smart watches are a common type of electronic device, with functions such as displaying time, communication, and positioning; smart glasses are a new type of electronic device, with functions such as displaying images, taking pictures, and recording videos. The foldable electronic devices that the middle frame component can be used for can also be, for example, smart phones, tablet computers, laptop computers, televisions, speakers, etc., and they can also use the middle frame component to ensure their thinness and structural strength.

[0084] Please refer to Figures 2 to 21 As shown, according to the second aspect of the present application, there is provided a foldable electronic device. The foldable electronic device includes two bodies 2 and a flipping mechanism 3 installed between the two bodies 2. At least one body 2 includes the above-mentioned middle frame component 1, and the frame 10 is the frame 10 on the side of the body 2 close to the flipping mechanism 3. The foldable electronic device can be a foldable mobile phone, a foldable screen laptop, a foldable screen TV, etc.

[0085] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A middle frame component, which is used for a foldable electronic device, and is characterized in that, The middle frame assembly includes: A plurality of side frames, the plurality of side frames are connected end to end in sequence, and a hollow cavity is formed between the plurality of side frames; A structure reinforcing member, the structure reinforcing member is embedded inside the side frame and extends along the length direction of the side frame.

2. The middle frame component according to claim 1, characterized in that, An installation groove is provided inside the side frame, the installation groove extends along the length direction of the side frame, and the structure reinforcing member is installed in the installation groove.

3. The middle frame assembly according to claim 2, wherein, The installation groove forms a notch on the side wall of the side frame, and the structure reinforcing member is installed in the installation groove through the notch.

4. The middle frame component according to claim 2, wherein The installation groove forms a notch on the upper side wall of the side frame.

5. The middle frame assembly according to claim 4, wherein The structure reinforcing member is a reinforcing sheet, the reinforcing sheet extends along the length direction of the side frame, the plate surface direction of the reinforcing sheet is perpendicular to the extension surface of the foldable electronic device, and the groove width of the installation groove is adapted to the thickness of the reinforcing sheet.

6. The middle frame component according to claim 5, characterized in that, A bent section is provided on one side of the reinforcing sheet close to the notch, and the bent section is perpendicular to the plate surface direction of the reinforcing sheet.

7. The middle frame component according to claim 6, characterized in that, A relief recess is provided on the upper side wall of the side frame, the relief recess communicates with the notch, the direction of the relief recess is adapted to the bending direction of the bent section, and the bent section is received in the relief recess.

8. The middle frame component according to claim 6, wherein The bent section bends towards the inside of the middle frame assembly.

9. The middle frame assembly according to claim 7, characterized in that, There are two bent sections, namely a first bent section facing the inside of the middle frame assembly and a second bent section facing the outside of the middle frame assembly.

10. The middle frame component according to claim 2, wherein The middle frame assembly further includes a connecting member, and the connecting member sequentially passes through the side frame and the structure reinforcing member to connect the structure reinforcing member in the installation groove.

11. The middle frame component according to claim 10, characterized in that, First through holes are provided on both side walls of the installation groove, the first through holes on both sides of the installation groove are correspondingly arranged, second through holes are provided on the structure reinforcing member, the second through holes are correspondingly arranged with the first through holes, and the connecting member is inserted through the second through holes and the two first through holes.

12. The middle frame component according to claim 11, wherein The connecting member, the second through holes and the first through holes on one side of the installation groove are all multiple and are arranged at intervals along the length direction of the side frame.

13. The middle frame assembly according to any one of claims 1 to 12, characterized in that The structure reinforcing member is a stainless steel member.

14. A foldable electronic device, characterized in that, The foldable electronic device includes two bodies and a flipping mechanism installed between the two bodies, and at least one of the bodies includes the middle frame assembly according to any one of claims 1 to 13, and the side frame is the side frame of the body close to the flipping mechanism.

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