Middle frame and laminated structure of electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment middle frame design, in particular to a middle frame and an electronic equipment laminated structure, the middle frame comprises a plurality of splicing monomers, the adjacent splicing monomers are spliced and fixed through a clamping structure, and the plurality of splicing monomers are spliced together to form a rectangular frame. The middle frame comprises the multiple splicing single bodies which can be spliced, the multiple splicing single bodies can be spliced through the clamping structures, and compared with the scheme that the middle frame is formed through nanometer injection molding in the background technology, the mode that the middle frame is split and then spliced perfectly avoids interference of back-off of the shell in the installation process; and the manufacturing cost is lower, and meanwhile, one splicing single body can be independently maintained or replaced in the later period, so that the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic device middle frame design, and in particular to a middle frame and an electronic device laminated structure. Background Art

[0002] Existing electronic devices such as tablets and mobile phones usually include an outer shell (also called a battery shell) and a middle frame. The middle frame is arranged inside the outer shell, and other structural components or module components are arranged or stacked on the middle frame. With the continuous improvement and innovation of technology, the edges of the outer shell have gradually evolved into an arc shape, greatly improving the user experience. However, the original middle frame is often interfered with when assembling with the outer shell due to the inverted structure of the arc edge formed on the outer shell. For this reason, some designs on the market use nano injection molding, that is, directly molding the middle frame into the inner wall of the outer shell. Although the effect is better, the cost is extremely high.

[0003] Therefore, it is urgent to find a lower-cost alternative. Utility Model Content

[0004] In order to solve the above technical problems or partially solve the above technical problems, the present application provides a middle frame and an electronic device stacking structure.

[0005] In a first aspect, the present application provides a middle frame, which includes a plurality of splicing units. Adjacent splicing units are spliced and fixed via a snap-fit structure, and the plurality of splicing units are spliced together into a rectangular frame.

[0006] Optionally, the middle frame includes two splicing units, which are respectively recorded as a first L-shaped plate and a second L-shaped plate; the snap-fit structure includes a snap-fit groove and a snap-fit portion, and one of the first L-shaped plate and the second L-shaped plate is provided with the snap-fit groove, and the other is provided with the snap-fit portion.

[0007] Optionally, the clamping grooves are provided at two ends of the first L-shaped plate, and the clamping portions are provided at two ends of the second L-shaped plate;

[0008] The end surface of the clamping groove away from the first L-shaped plate is provided with a first step portion, and the end of the clamping portion close to the second L-shaped plate is provided with a second step portion. The clamping groove is clamped with the clamping portion, and the first step portion is abutted with the second step portion.

[0009] Optionally, the engaging groove has an arc-shaped structure along its own extending direction, and the concave side of the arc faces the center of the middle frame;

[0010] The clamping portion and the clamping slot are adapted to each other.

[0011] Optionally, a notch is formed on one side wall of the clamping groove along its extending direction on one side of the first L-shaped plate body. A clamping protrusion extends from the concave side of the clamping portion towards the center of the middle frame, and the clamping protrusion cooperates with the notch. A clamping platform protrudes from the bottom of the clamping groove, and the side of the clamping platform away from the bottom of the clamping groove abuts and cooperates with the concave side wall in the clamping portion, and the side wall of the clamping platform abuts and cooperates with the side wall of the clamping protrusion.

[0012] Optionally, the side wall of the clamping groove close to the first L-shaped plate body and the side wall of the clamping groove opposite to the notch are both inclined, and the closer to the bottom of the clamping groove, the more inclined towards the center of the bottom of the clamping groove;

[0013] One end face of the clamping portion away from the second L-shaped plate body and the side wall of the clamping portion opposite to the clamping protrusion are both inclined;

[0014] The side wall of the clamping groove close to the first L-shaped plate body abuts against one end face of the clamping portion away from the second L-shaped plate body, and the side wall of the clamping groove opposite to the notch abuts against the side wall of the clamping portion opposite to the clamping protrusion.

[0015] Optionally, the first stepped portion includes a first step and a second step, and one end of the first step facing away from the first L-shaped plate body extends out of the end face of the second step facing away from the first L-shaped plate body;

[0016] The second stepped portion includes a third step and a fourth step, and one end of the fourth step facing away from the second L-shaped plate body extends out of the end face of the third step facing away from the second L-shaped plate body;

[0017] The tread surface of the first step abuts and cooperates with the tread surface of the third step, and the tread surface of the second step abuts and cooperates with the tread surface of the fourth step.

[0018] Optionally, the tread surface of the first step gradually inclines towards the riser surface of the first step, and the tread surface of the second step gradually inclines towards the riser surface of the second step;

[0019] The tread surface of the third step gradually inclines towards the riser surface of the third step, and the tread surface of the fourth step gradually inclines towards the riser surface of the fourth step.

[0020] Optionally, a first resisting surface is provided on one side of the tread surface of the second step away from the first step; a second resisting surface is provided on one side of the tread surface of the fourth step away from the third step, and the first resisting surface abuts and cooperates with the second resisting surface;

[0021] and / or,

[0022] One side of the clamping portion facing away from the clamping groove is bent along the thickness direction of the middle frame, and the concave side faces the clamping groove.

[0023] In a second aspect, the present application further provides a stacked structure of an electronic device, including the middle frame as described above, and further including a housing;

[0024] An installation cavity with one side open is provided on the housing for installing the middle frame, and one side of the middle frame facing the bottom of the installation cavity is adhesively connected to the bottom of the installation cavity.

[0025] The technical solution provided by the embodiments of the present application has the following advantages compared with the prior art:

[0026] The middle frame provided by the present application includes a plurality of splicing monomers that can be spliced. The plurality of splicing monomers can be spliced through a clamping structure. Compared with the solution of using a nano-injection molded middle frame in the background art, the present application perfectly avoids the interference of the housing's reverse buckle during the installation process through the method of disassembling and then splicing, and has a lower manufacturing cost. At the same time, one of the splicing monomers can also be repaired or replaced separately in the later stage, thereby reducing the maintenance cost.

[0027] In addition, the present application also provides a stacked structure of an electronic device, in which the middle frame includes a plurality of splicing monomers that can be spliced. The splicing monomers are clamped through a clamping groove and a clamping portion, ensuring the firmness between each other after the plurality of splicing monomers are installed inside the housing. Compared with the high-cost nano-injection molding solution, the stacked structure provided by the present application is more economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0030] Figure 1 It is a schematic diagram of the overall structure of the disassembly structure of the middle frame of the electronic device according to the embodiment of the present application;

[0031] Figure 2 It is an exploded view of the first L-shaped plate body and the second L-shaped plate body in the disassembly structure of the middle frame of the electronic device according to the embodiment of the present application;

[0032] Figure 3 ForFigure 2 Partial enlarged schematic view at location A

[0033] Figure 4 Schematic diagram of the housing structure of the middle frame disassembling structure of the electronic device described in the embodiment of the present application

[0034] Figure 5 Schematic diagram of the structure at the clamping groove of the middle frame disassembling structure of the electronic device described in the embodiment of the present application

[0035] Figure 6 Another angle schematic diagram of the structure at the clamping groove of the middle frame disassembling structure of the electronic device described in the embodiment of the present application

[0036] Figure 7 Schematic diagram of the structure at the clamping part of the middle frame disassembling structure of the electronic device described in the embodiment of the present application

[0037] Figure 8 Another angle schematic diagram of the structure at the clamping part of the middle frame disassembling structure of the electronic device described in the embodiment of the present application

[0038] Among them,

[0039] 1. First L-shaped plate body; 10. Clamping groove; 11. Notch; 12. Clamping platform; 13. First stepped part; 130. First step; 131. Second step; 132. First resisting surface; 2. Second L-shaped plate body; 20. Clamping part; 21. Clamping protrusion; 22. Second stepped part; 23. Third step; 24. Fourth step; 25. Second resisting surface; 3. Housing; 30. Installation cavity. Detailed implementation mode

[0040] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present application, the solutions of the present application will be further described below. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0041] Many specific details are set forth in the following description in order to fully understand the present application, but the present application can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present application, rather than all of the embodiments.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features.

[0044] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0045] In the description of the embodiments of the present application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0046] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0047] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside 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 the present application can be understood according to specific circumstances.

[0049] Refer to Figures 1 to 2As shown, in a first aspect, the present application provides a middle frame, which includes a plurality of splicing monomers. The adjacent splicing monomers are spliced and fixed through a clamping structure, and the plurality of splicing monomers are jointly spliced into a rectangular frame.

[0050] The middle frame is in a plate-like structure, and its overall contour is mainly rectangular, and it is mainly used for some electronic products such as tablet computers and mobile phones.

[0051] In this embodiment, the number of splicing monomers can depend on the structural configuration of the specific product to be applied. However, regardless of the number and the contour structure of a single splicing monomer, it is intended to facilitate subsequent installation or maintenance through the method of separation and then splicing, and at the same time reduce the manufacturing or maintenance cost of the product to a certain extent.

[0052] Preferably, the clamping structure is attached to the splicing monomer itself, that is, integrally formed on the splicing monomer, so as to reduce the number of components to a certain extent. In some other embodiments, the clamping structure can also be an independent component, which is specifically used to connect two splicing monomers that need to be spliced.

[0053] The plurality of splicing monomers can be spliced through the clamping structure. Compared with the traditional scheme of using nano-injection molding for the middle frame, in the present application, the method of splitting and then splicing perfectly avoids the interference of the reverse buckle of the outer shell 3 during the installation process, and has a lower manufacturing cost. At the same time, in the later stage, a single splicing monomer can also be repaired or replaced separately, thereby reducing the maintenance cost.

[0054] Refer to Figure 2 As shown, in some further embodiments, the middle frame includes two splicing monomers, which are respectively denoted as the first L-shaped plate body 1 and the second L-shaped plate body 2; the clamping structure includes a clamping groove 10 and a clamping portion 20. One of the first L-shaped plate body 1 and the second L-shaped plate body 2 is provided with the clamping groove 10, and the other is provided with the clamping portion 20.

[0055] Specifically, the number of splicing monomers is two. For the convenience of description, they are respectively denoted as the first L-shaped plate body 1 and the second L-shaped plate body 2. Both the first L-shaped plate body 1 and the second L-shaped plate body 2 are in an L-shaped plate structure. When splicing, the two plates of the first L-shaped plate body 1 and the second L-shaped plate body 2 are butted against each other relatively, so as to enclose a rectangular frame as a whole.

[0056] The clamping structure in this embodiment is attached to the splicing monomer, that is, the clamping structure includes a clamping groove 10 and a clamping portion 20. In different embodiments, the setting position of the clamping groove 10 is different. For example, in a certain embodiment, the clamping groove 10 is arranged on the first L-shaped plate body 1, while the clamping portion 20 is arranged on the second L-shaped plate body 2. In another embodiment, the clamping groove 10 is arranged on the second L-shaped plate body 2, while the clamping portion 20 is arranged on the first L-shaped plate body 1; both methods are acceptable.

[0057] The snap - fit structure is arranged by relying on the first L - shaped plate body 1 and the second L - shaped plate body 2, which can effectively reduce the number of structural components of the entire middle frame, make the structure simpler, and also make the splicing process more convenient.

[0058] The mutual cooperation between the snap - fit portion 20 and the snap - fit groove 10 is mainly used to achieve the splicing stability between the first L - shaped plate body 1 and the second L - shaped plate body 2.

[0059] Please refer to Figures 2 to 3 As shown, in some further embodiments, the snap - fit grooves 10 are arranged at both ends of the first L - shaped plate body 1, and the snap - fit portions 20 are arranged at both ends of the second L - shaped plate body 2; a first stepped portion 13 is provided on the end face of the snap - fit groove 10 away from the first L - shaped plate body 1, and a second stepped portion 22 is provided at one end of the snap - fit portion 20 close to the second L - shaped plate body 2. The snap - fit groove 10 and the snap - fit portion 20 are in snap - fit cooperation, and the first stepped portion 13 and the second stepped portion 22 are in abutting cooperation.

[0060] Since both the first L - shaped plate body 1 and the second L - shaped plate body 2 are L - shaped plate - like structures, the end refers to the position marked with the local view symbol A in the content shown in Figure 2 and also includes one end of the diagonal at the same time.

[0061] The snap - fit groove 10 has a certain length. One end is close to the first L - shaped plate body 1 itself, and the other end is far from the first L - shaped plate body 1 itself. A first stepped portion 13 is formed on the end face of the snap - fit groove 10 far from the first L - shaped plate body 1 along the original end - face orientation. The first stepped portion 13 is used to participate in the splicing to further ensure the connection stability between the splicing units.

[0062] The snap - fit portion 20 also has a certain length. One end is close to the second L - shaped plate body 2 itself, and the other end extends out of the second L - shaped plate body 2 itself. A second stepped portion 22 is formed at the position of one end of the snap - fit portion 20 close to the second L - shaped plate body 2. When the snap - fit groove 10 and the snap - fit portion 20 cooperate with each other, the first stepped portion 13 and the second stepped portion 22 are in abutting cooperation.

[0063] When the first stepped portion 13 and the second stepped portion 22 cooperate, since the stepped structure has at least two treads not in the same plane, the misalignment between the first L - shaped plate body 1 and the second L - shaped plate body 2 can be effectively ensured after mutual abutment, so as to further ensure the connection firmness between the first L - shaped plate body 1 and the second L - shaped plate body 2.

[0064] In some further embodiments, the snap - fit groove 10 is in an arc - shaped structure along its own extension direction, and the concave side of the arc faces the center of the middle frame; the snap - fit portion 20 is adapted to the snap - fit groove 10.

[0065] Refer toFigure 3 As shown, the clamping groove 10 and the clamping portion 20 are both arc-shaped structures that match each other, and the concave side of the arc faces the center of the middle frame formed after splicing.

[0066] The setting of the arc-shaped structure will be more convenient when splicing and detaching, and there will be no unnecessary interference caused by some angular structures; of course, in some other embodiments, the setting of the arc-shaped structure is also used for the cooperation of some components that are convenient to cooperate with the middle frame.

[0067] Referring to Figure 5 and Figure 7 As shown, in some further embodiments, a notch 11 is formed on one side wall of the clamping groove 10 along its own extension direction on one side of the first L-shaped plate body 1. A clamping protrusion 21 extends from the concave side of the clamping portion 20 towards the center of the middle frame, and the clamping protrusion 21 cooperates with the notch 11.

[0068] It should be explained that the notch 11 (structure) in this embodiment is intended to indicate that one side of the clamping groove 10 is completely open on one side wall of the first L-shaped plate body 1. The reason for forming the notch 11 is to ensure that the splicing and detaching process is more convenient.

[0069] On the concave side of the clamping portion 20, that is, on the side towards the second L-shaped plate body 2 itself, a clamping protrusion 21 extends towards the central part of the middle frame. The clamping protrusion 21 has the same extension state as the clamping portion 20 itself. When the clamping groove 10 and the clamping portion 20 are fully engaged, the clamping protrusion 21 is exactly clamped in the notch 11, further ensuring the connection strength between the first L-shaped plate body 1 and the second L-shaped plate body 2.

[0070] A clamping platform 12 protrudes from the bottom of the clamping groove 10. The side of the clamping platform 12 away from the bottom of the clamping groove 10 is in abutting cooperation with the concave side wall in the clamping portion 20, and the side wall of the clamping platform 12 is in abutting cooperation with the side wall of the clamping protrusion 21.

[0071] Between the side wall opposite to the side where the notch 11 is located, a clamping platform 12 is provided at the bottom of the clamping groove 10, and the clamping platform 12 protrudes from the bottom of the clamping groove 10; a clamping protrusion 21 in the clamping portion 20 and the concave side wall of the clamping portion 20 form an L-shaped structure. When the clamping groove 10 and the clamping portion 20 are engaged, the side surface of the clamping platform 12 away from the bottom of the clamping groove 10 abuts against the concave side wall in the clamping portion 20, and the side wall of the clamping protrusion 21 facing the inside of the formed L-shaped structure abuts against the side wall of the clamping platform 12 facing the notch 11, to ensure the stability of the first L-shaped plate body 1 and the second L-shaped plate body 2 during the cooperation process.

[0072] Referring to Figure 5 and Figure 8As shown, in some further embodiments, one side wall of the clamping groove 10 close to the first L-shaped plate body 1 and one side wall of the clamping groove 10 opposite to the notch 11 are both inclined, and the closer to the bottom of the clamping groove 10, the more inclined towards the center of the bottom of the clamping groove 10.

[0073] One side wall of the clamping groove 10 close to the first L-shaped plate body 1 itself and one side wall opposite to the notch 11 are inclined, presenting a chamfered shape or a flared shape, so as to facilitate the cooperation with the clamping portion 20.

[0074] One end face of the clamping portion 20 away from the second L-shaped plate body 2 and one side wall of the clamping portion 20 opposite to the clamping protrusion 21 are both inclined to adapt to the chamfer or flared structure in the clamping groove 10.

[0075] One side wall of the clamping groove 10 close to the first L-shaped plate body 1 abuts against one end face of the clamping portion 20 away from the second L-shaped plate body 2, and one side wall of the clamping groove 10 opposite to the notch 11 abuts against one side wall of the clamping portion 20 opposite to the clamping protrusion 21.

[0076] Refer to Figure 6 and Figure 8 As shown, in some further embodiments, the first stepped portion 13 includes a first step 130 and a second step 131, and one end of the first step 130 facing away from the first L-shaped plate body 1 extends beyond one end face of the second step 131 facing away from the first L-shaped plate body 1.

[0077] That is, the first step 130 is higher than the second step 131, and the tread surfaces of the first step 130 and the second step 131 form two planes with different heights, thereby increasing the number of references during the cooperation process to ensure the accuracy of the cooperation and subsequent stability.

[0078] The second stepped portion 22 includes a third step 23 and a fourth step 24, and one end of the fourth step 24 facing away from the second L-shaped plate body 2 extends beyond one end face of the third step 23 facing away from the second L-shaped plate body 2.

[0079] Similarly, the fourth step 24 is higher than the third step 23, and the two tread surfaces with different heights formed by the third step 23 and the fourth step 24 exactly intersect with the two tread surfaces with different heights formed by the first step 130 and the second step 131. That is, when the clamping portion 20 is engaged with the clamping groove 10, the tread surface of the first step 130 abuts and cooperates with the tread surface of the third step 23, and the tread surface of the second step 131 abuts and cooperates with the tread surface of the fourth step 24.

[0080] With the mutual cooperation between the first step portion 13 and the second step portion 22, the cooperation between the clamping portion 20 and the clamping groove 10 will be more secure, ensuring that after the clamping groove 10 and the clamping portion 20 cooperate, the first L-shaped plate 1 and the second L-shaped plate 2 are limited in multiple directions.

[0081] In some further embodiments, the tread of the first step 130 gradually inclines toward the riser of the first step 130 , and the tread of the second step 131 gradually inclines toward the riser of the second step 131 ; the tread of the third step 23 gradually inclines toward the riser of the third step 23 , and the tread of the fourth step 24 gradually inclines toward the riser of the fourth step 24 .

[0082] Setting the tread as an inclined structure can, firstly, ensure that the installation process is more convenient, and secondly, form a limit for each splicing monomer in the spliced middle frame. For example, when the first L-shaped plate 1 and the second L-shaped plate 2 are spliced and installed inside certain components such as some shells or cavities, under the action of the inclined structure, only one of the splicing monomers (such as the first L-shaped plate 1) can be directly removed, while the other splicing monomer (such as the second L-shaped plate 2) cannot be freely removed due to the obstruction of the inclined tread structure on the previous splicing monomer, thereby ensuring the stability of each splicing monomer in the middle frame.

[0083] Reference Figure 6 and Figure 8 As shown, in some further embodiments, a first abutting surface 132 is provided on the side of the tread of the second step 131 away from the first step 130; a second abutting surface 25 is provided on the side of the tread of the fourth step 24 away from the third step 23, and the first abutting surface 132 abuts against the second abutting surface 25.

[0084] When the tread is in an inclined structure, there may be a sliding tendency of the first step 130 and the third step 23 being matched, and the second step 131 and the fourth step 24 being matched, and there may be a sliding tendency of the first step 130 and the second step 131 being matched. Therefore, a first abutting surface 132 is provided on the part of the tread of the second step 131 away from the first step 130, and a second abutting surface 25 is provided on the part of the tread of the fourth step 24 away from the third step 23. When the first step portion 13 and the second step portion 22 are matched with each other, the first abutting surface 132 abuts against the second abutting surface 25.

[0085] It should be noted that the first abutment surface 132 and the second abutment surface 25 are both perpendicular to the larger side wall of the spliced middle frame, and are completely perpendicular to the movement direction of the tread of the second step 131 and the tread of the fourth step 24 at the moment of contact, thereby avoiding slippage or dislocation.

[0086] In some further embodiments, a side of the clamping portion 20 facing away from the clamping slot 10 is bent along the thickness direction of the middle frame, and a concave side faces the clamping slot 10 .

[0087] The middle frame has a plate-like structure, so the thickness direction refers to the vertical distance between two larger and parallel side surfaces of the middle frame.

[0088] The clamping portion 20 is bent toward one side of the clamping slot 10, as shown in FIG. Figure 3 Or as Figure 8 As shown, to ensure that it is adapted to the cavity or shell that cooperates with the middle frame.

[0089] Reference Figure 1 and Figure 4 As shown, in the second aspect, the present application also provides a laminated structure of an electronic device, including the middle frame as above, and also including a shell 3; the shell 3 is provided with a mounting cavity 30 with one side open for mounting the middle frame, and the side of the middle frame facing the bottom of the mounting cavity 30 is adhesively connected to the bottom of the mounting cavity 30.

[0090] The assembled middle frame is bonded to the inside of the installation cavity 30 in the outer shell 3 . When installing, the second L-shaped plate 2 must be installed first, and then the first L-shaped plate 1 is installed.

[0091] The side wall of the installation cavity 30 is in an arc-shaped structure, which is known as an inverted structure in the industry, and is used to improve the user experience and product competitiveness of the entire device.

[0092] It should be noted that the space inside the installation cavity 30 needs to be fully utilized to reduce the thickness of the entire electronic device as much as possible. After understanding this premise, the following explanation is given for the possibility of the first L-shaped plate 1 and the second L-shaped plate 2 being set as an L-shaped structure.

[0093] When the second L-shaped plate 2 is in an L-shaped structure, when it is installed in the installation cavity 30, it should move along the diagonal line connecting the two corners (the corners of the L-shaped structure) in the middle frame spliced together with the first L-shaped plate 1, so that the second L-shaped plate 2 avoids the inverted structure of the installation cavity 30 during the process of being placed inside the installation cavity 30. When it is completely located in the installation cavity 30, it moves in the opposite direction until all outer edges and corners of the second L-shaped plate 2 are in contact with the corresponding side walls and corners in the installation cavity 30. The same applies to the first L-shaped plate 1.

[0094] In the above process, the installation of the first L-shaped plate body 1 is more inclined to "slant and slide" into the interior of the installation cavity 30. It should be noted that the inclined surface structures of the first stepped portion 13, the second structural portion, the inclined structure of the side wall of the clamping groove 10, and the inclined structure on the clamping portion 20 that cooperates with the side wall of the clamping groove 10 are all designed to ensure the smooth completion of the "slant and slide". In addition, the displacement amount along the bottom plane of the installation cavity 30 during the above "slant and slide" is very small, so that the "slant and slide" can be regarded as clamping the first L-shaped plate body 1 into the position reserved for the first L-shaped plate body 1 in the installation cavity 30 under a certain external force.

[0095] So far, the first L-shaped plate body 1 and the second L-shaped plate body 2 can perfectly avoid the undercut structure without reducing their own structural dimensions through the splitting of their own L-shaped structures, and can also fill the undercut structure (inside) in the installation cavity 30, preventing the gap reserved for realizing the "slant and slide" from being misaligned into the undercut structure, thereby reducing the utilization efficiency of the space in the installation cavity 30.

[0096] Suppose there are two rectangular splicing monomers. When they want to avoid the undercut structure and enter the interior of the installation cavity 30, they can only reduce their own sizes. However, once their sizes are reduced, there will inevitably be a situation where the edge part of the surrounded middle frame cannot completely fill the undercut structure (inside) of the installation cavity 30, that is, the reserved gap will be located between the edge of the middle frame and the side wall of the installation cavity 30, and the utilization efficiency of this part of the space is extremely low and cannot be utilized by other subsequent structures.

[0097] In summary, this laminated structure of the electronic device can maximize the utilization of the space inside the electronic device on the premise of ensuring the splicing of the middle frame and the outer shell 3, making the internal structure more reasonable, and at the same time ensuring that the entire electronic device has a relatively considerable thickness. In addition, it is undeniable that compared with the high-cost nano-injection molding solution, the laminated structure provided in this application is more economical and practical.

[0098] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A middle frame, characterized in that, The middle frame includes a plurality of splicing monomers, and adjacent splicing monomers are spliced and fixed through a clamping structure, and the plurality of splicing monomers are jointly spliced into a rectangular frame; the middle frame includes two splicing monomers, which are respectively denoted as a first L-shaped plate body (1) and a second L-shaped plate body (2); the clamping structure includes a clamping groove (10) and a clamping portion (20), and one of the first L-shaped plate body (1) and the second L-shaped plate body (2) is provided with the clamping groove (10), and the other is provided with the clamping portion (20); the clamping groove (10) is arranged at two ends of the first L-shaped plate body (1), and the clamping portion (20) is arranged at two ends of the second L-shaped plate body (2). One end face of the clamping groove (10) far from the first L-shaped plate body (1) is provided with a first stepped portion (13), and one end of the clamping portion (20) close to the second L-shaped plate body (2) is provided with a second stepped portion (22). The clamping groove (10) is in clamping fit with the clamping portion (20), and the first stepped portion (13) is in abutting fit with the second stepped portion (22).

2. The middle frame according to claim 1, wherein The clamping groove (10) is in an arc structure along its own extending direction, and the concave side of the arc faces the center of the middle frame. The clamping portion (20) is adapted to the clamping groove (10).

3. The middle frame according to claim 2, characterized in that, One side wall of the clamping groove (10) along its own extending direction forms a notch (11) on one side of the first L-shaped plate body (1). A clamping protrusion (21) extends from the concave side of the clamping portion (20) towards the center of the middle frame, and the clamping protrusion (21) cooperates with the notch (11); a clamping platform (12) protrudes from the bottom of the clamping groove (10), and one side of the clamping platform (12) far from the bottom of the clamping groove (10) is in abutting fit with the concave side wall of the clamping portion (20), and the side wall of the clamping platform (12) is in abutting fit with the side wall of the clamping protrusion (21).

4. The middle frame according to claim 3, characterized in that, One side wall of the clamping groove (10) close to the first L-shaped plate body (1) and one side wall of the clamping groove (10) opposite to the notch (11) are both inclined, and the closer to the bottom of the clamping groove (10), the more inclined towards the center of the bottom of the clamping groove (10). One end face of the clamping portion (20) far from the second L-shaped plate body (2) and one side wall of the clamping portion (20) opposite to the clamping protrusion (21) are both inclined. One side wall of the clamping groove (10) close to the first L-shaped plate body (1) abuts against one end face of the clamping portion (20) far from the second L-shaped plate body (2), and one side wall of the clamping groove (10) opposite to the notch (11) abuts against one side wall of the clamping portion (20) opposite to the clamping protrusion (21).

5. The middle frame according to claim 1, characterized in that, The first stepped portion (13) includes a first step (130) and a second step (131), and one end of the first step (130) facing away from the first L-shaped plate body (1) extends out of the end face of the second step (131) facing away from the first L-shaped plate body (1). The second stepped portion (22) includes a third step (23) and a fourth step (24). One end of the fourth step (24) facing away from the second L-shaped plate body (2) extends beyond the end face of one end of the third step (23) facing away from the second L-shaped plate body (2). The tread surface of the first step (130) is in abutting engagement with the tread surface of the third step (23), and the tread surface of the second step (131) is in abutting engagement with the tread surface of the fourth step (24).

6. The middle frame according to claim 5, characterized in that, The tread surface of the first step (130) gradually inclines towards the riser surface of the first step (130), and the tread surface of the second step (131) gradually inclines towards the riser surface of the second step (131). The tread surface of the third step (23) gradually inclines towards the riser surface of the third step (23), and the tread surface of the fourth step (24) gradually inclines towards the riser surface of the fourth step (24).

7. The middle frame according to claim 5, characterized in that One side of the tread surface of the second step (131) far from the first step (130) is provided with a first resisting surface (132); one side of the tread surface of the fourth step (24) far from the third step (23) is provided with a second resisting surface (25), and the first resisting surface (132) is in abutting engagement with the second resisting surface (25). and / or One side of the engaging portion (20) facing away from the engaging groove (10) is bent along the thickness direction of the middle frame, and the concave side faces the engaging groove (10).

8. An electronic device laminated structure, characterized in that, It includes the middle frame according to any one of claims 1 to 7, and further includes a housing (3). The housing (3) is provided with an installation cavity (30) with one side open for installing the middle frame, and one side of the middle frame facing the bottom of the installation cavity (30) is adhesively connected to the bottom of the installation cavity (30).

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