A high-strength notebook computer structure

By designing a clearance area on the back of the motherboard and forming a continuous surface support structure with the reinforcing ribs of the keyboard bracket, the problem of insufficient structural strength of laptops is solved, achieving a high-strength design for thin and light laptops and improving their resistance to bending and torsion.

CN224354783UActive Publication Date: 2026-06-12NANJING WEIZHI NEW TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING WEIZHI NEW TECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing laptops have insufficient structural strength, especially at the connection between the motherboard and the keyboard bracket. Traditional discrete fixing methods are difficult to evenly distribute keyboard input force, resulting in decreased rigidity, weakened torsional resistance, and easy loosening of connectors. In addition, weight reduction schemes increase the overall thickness of the machine.

Method used

An air-relief area is designed on the back of the motherboard, which, together with the reinforcing ribs of the keyboard bracket, forms a continuous surface support structure. Through precision machining and snap-fit ​​components, gapless contact is ensured, forming a multi-level mechanical transmission path, which enhances the overall strength of the machine and reduces its weight.

🎯Benefits of technology

While maintaining its slim and lightweight characteristics, the laptop's resistance to bending and torsion has been significantly improved, local stress concentration has been reduced, the overall thickness has been reduced, and the structural strength has been increased.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application relates to the field of computers, and more particularly to a high-strength laptop computer structure, comprising: a motherboard and a keyboard; a clearance area on the back of the motherboard; a keyboard support frame; and reinforcing ribs on the keyboard support frame corresponding to the clearance area. The lower surface of the reinforcing ribs makes zero-gap contact with the surface of the clearance area, forming a continuous surface support structure. Compared to existing technologies, this application reduces weight through the clearance design and ensures that the assembled laptop computer becomes a single unit in the motherboard area through the zero-gap contact between the reinforcing ribs and the clearance area, thereby increasing the overall strength of the machine.
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Description

Technical Field

[0001] This application relates to the field of computers, and more particularly to a high-strength notebook computer structure. Background Technology

[0002] With the rapid growth in demand for mobile office work, ultra-thin laptops have become the mainstream in the market. However, existing weight reduction solutions, which simply reduce the thickness of components or the number of structural parts, often result in insufficient overall structural strength. This manifests as reduced rigidity in the keyboard area, weakened torsional resistance, loose connections, and increased risk of drops. In particular, the traditional discrete point-fixing method at the connection between the motherboard and the keyboard bracket is difficult to evenly distribute keyboard input force and occupies additional assembly space. Adding reinforcing ribs, on the other hand, increases the overall thickness. Therefore, there is an urgent need for a new laptop structural design that can maintain the product's thinness and lightness while ensuring structural strength. Utility Model Content

[0003] This application provides a high-strength laptop computer structure to solve the technical problem of insufficient overall structural strength in existing laptop computers.

[0004] This application provides a high-strength laptop computer structure, including: a motherboard and a keyboard. The back of the motherboard is provided with a clearance area, the keyboard is provided with a keyboard bracket, and the keyboard bracket is provided with reinforcing ribs at positions corresponding to the clearance area. The lower surface of the reinforcing ribs is in zero-gap contact with the surface of the clearance area to form a continuous surface support structure.

[0005] Furthermore, the height surface design tolerance of the air-avoidance zone is 0 mm.

[0006] Furthermore, the clearance area is enclosed by a rectangular support frame, with support arms extending inward from the middle of the top and bottom sides of the rectangular support frame, and the ends of the arms do not intersect, so as to divide the clearance area into two interconnected regions.

[0007] Furthermore, the reinforcing rib is a continuous protrusion provided by the keyboard bracket corresponding to the rectangular support frame, and the continuous protrusion abuts against the rectangular support frame.

[0008] Furthermore, the rectangular support frame is provided with a plurality of positioning holes, and the continuous protrusion is provided with a plurality of snap-fit ​​parts corresponding to the positioning holes, and the positioning holes snap-fit ​​with the snap-fit ​​parts.

[0009] Furthermore, the snap-fit ​​component is a stepped boss, and the snap-fit ​​component and the positioning hole are interference fit.

[0010] Furthermore, the rectangular support frame is a flexible conductive structure.

[0011] Furthermore, the high-strength laptop computer structure also includes a casing, which is snapped into the keyboard, and a retaining member is provided on the front of the motherboard, which abuts against the casing.

[0012] Furthermore, the motherboard also has several support points on its front side, which abut against the outer casing to support the outer casing.

[0013] Furthermore, the high-strength laptop structure also includes a display module, which is rotatably connected to the integral structure formed by the keyboard and the outer shell after being snapped together.

[0014] The technical solution provided in this application has the following advantages compared with the prior art:

[0015] In this application's technical solution, to maintain the product's slim and lightweight characteristics while ensuring structural strength, a clearance area is set on the back of the motherboard, which, together with the reinforcing ribs of the keyboard bracket, forms a continuous surface support with zero gaps. Compared to existing technologies, this application reduces weight through the clearance design and ensures that the assembled laptop becomes a unified whole in the motherboard area through the zero-gap contact between the reinforcing ribs and the clearance area, thereby increasing the overall strength of the machine. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a schematic diagram of a high-strength laptop computer structure provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the back structure of a high-strength laptop computer structure provided in an embodiment of this application;

[0021] Figure 3 This is an exploded view of a high-strength laptop computer structure provided in an embodiment of this application;

[0022] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0023] Figure 5 This is a cross-sectional view of a high-strength laptop computer structure with a shell, provided as an embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mainboard; 11. Clearance area; 12. Rectangular support frame; 121. Positioning hole; 13. Support point;

[0026] 2. Keyboard; 21. Keyboard stand; 211. Reinforcing rib; 2111. Connector;

[0027] 3. Outer shell; 4. Abutment part. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0030] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0031] To address the technical problem of insufficient structural strength in existing laptops, this application provides a high-strength laptop structure. By reducing weight through a recessed design, and by ensuring zero-gap contact between reinforcing ribs and the recessed area, the assembled laptop becomes a single unit in the motherboard area, thereby increasing the overall strength of the machine.

[0032] Please see Figures 1 to 5 The present application provides a high-strength laptop computer structure, including: a motherboard 1 and a keyboard 2. The back of the motherboard 1 is provided with a clearance area 11, and the keyboard 2 is provided with a keyboard bracket 21. The keyboard bracket 21 is provided with a reinforcing rib 211 at the position corresponding to the clearance area 11. The lower surface of the reinforcing rib 211 is in zero-gap contact with the surface of the clearance area 11 to form a continuous surface support structure.

[0033] Specifically, in this embodiment, a clearance area 11 is machined in a specific area on the back of the motherboard 1. The surface of this area is flat and without any protrusions. An integrally formed reinforcing rib 211 is provided on the keyboard bracket 21 at the position corresponding to the clearance area 11, and its lower surface is machined to be a plane that completely fits the surface of the clearance area 11. During assembly, the reinforcing rib 211 of the keyboard bracket 21 is precisely aligned with the clearance area 11 of the motherboard 1 and fixed by clips or micro screws to ensure that there is no gap between the contact surfaces of the two. After assembly, the tight contact between the reinforcing rib 211 and the clearance area 11 forms a continuous surface support structure covering the entire clearance area 11.

[0034] Through the above methods, the continuous surface support structure evenly distributes the input force of the keyboard 2 to the motherboard 1, avoiding local stress concentration and significantly improving the overall machine's resistance to bending and torsion; the zero-gap contact design eliminates the need to reserve traditional assembly tolerance space, reducing the thickness occupied by non-functional areas; and the combination of the clearance area 11 and the reinforcing rib 211 ensures strength while reducing weight by removing redundant materials.

[0035] In some embodiments, the height surface design tolerance of the clearance zone 11 is 0 mm.

[0036] Specifically, the clearance area 11 is machined using a precision grinding process to ensure that its surface height tolerance is strictly controlled within 0mm. The target area on the back of the motherboard 1 is milled in layers using a CNC machine tool, followed by chemical mechanical polishing, ultimately forming a flat surface of the clearance area 11 with no height deviation. The lower surface of the reinforcing rib 211 of the keyboard bracket 21 is simultaneously mirror-polished to achieve a high-precision planar match with the surface of the clearance area 11. The zero-tolerance surface eliminates microscopic gaps, allowing for a stress-free, rigid contact between the reinforcing rib 211 and the clearance area 11.

[0037] like Figure 3 As shown, the airspace 11 is enclosed by a rectangular support frame 12. The top and bottom sides of the rectangular support frame 12 have support arms extending inward from the middle and their ends do not intersect, so as to divide the airspace 11 into two interconnected areas.

[0038] Specifically, the rectangular frame and the support arm form a multi-level mechanical transmission path, distributing the input load of the keyboard 2 to multiple points on the motherboard 1; the symmetrical layout of the support arm transforms the force on the clearance zone 11 into a symmetrically distributed compression-tension composite load, reducing the risk of local fracture.

[0039] like Figure 3-4 As shown, the reinforcing rib 211 is a continuous protrusion provided by the keyboard bracket 21 corresponding to the rectangular support frame 12, and the continuous protrusion abuts against the rectangular support frame 12.

[0040] Specifically, in this embodiment, continuous protrusions matching the contour of the rectangular support frame 12 are machined on the surface of the keyboard bracket 21 using stamping or injection molding processes. The direction of the protrusions is perpendicular to the plane of the keyboard 2. The contact surface of the continuous protrusions is machined into an arc surface or plane that completely fits the outer surface of the rectangular support frame 12. During assembly, the position of the continuous protrusions and the rectangular support frame 12 is calibrated by the system, and the two are tightly abutted by buckles. After abutting, the continuous protrusions form a closed-loop support band along the extension direction of the rectangular support frame 12, covering the entire circumference of the support frame, thereby eliminating the stress abrupt change points of traditional intermittent support and improving the overall bending stiffness.

[0041] like Figure 3-4As shown, the rectangular support frame 12 is provided with a plurality of positioning holes 121, and a plurality of snap-fit ​​pieces 2111 corresponding to the positioning holes 121 are protruding on the continuous protrusions, and the positioning holes 121 are snapped into the snap-fit ​​pieces 2111.

[0042] Specifically, cylindrical positioning holes 121 that penetrate the structure are machined at equal intervals along the edge of the rectangular support frame 12. A snap-fit ​​part 2111 is injection molded at the corresponding position of the continuous protrusion. The snap-fit ​​part 2111 cooperates with the guide opening of the positioning hole 121 to guide the continuous protrusion to be precisely aligned with the support frame.

[0043] like Figure 3-4 As shown, the snap-fit ​​part 2111 is a stepped boss, and the snap-fit ​​part 2111 and the positioning hole 121 are interference fit.

[0044] Specifically, in this embodiment, a multi-level stepped boss is machined on the continuous raised surface, with the diameter of each step increasing progressively to form an axially gradual structure. At the same time, the maximum diameter of the boss is designed to be slightly larger than the diameter of the positioning hole 121. During assembly, vertical pressure is applied by a press to compress and deform the stepped boss step by step and embed it into the positioning hole 121. Each step of the boss forms multi-point contact with the inner wall of the positioning hole 121. After the last step is fully embedded, a radial expansion force is generated to achieve self-locking.

[0045] In some embodiments, the rectangular support frame 12 is a flexible conductive structure.

[0046] Specifically, in this embodiment, conductive silicone or metal fiber reinforced composite material is used as the material for the rectangular support frame 12. It is molded into a preset geometric structure through a molding process. At the same time, serpentine conductive metal wires or printed conductive lines are embedded inside the support frame to ensure overall conductivity.

[0047] like Figure 5 As shown, the high-strength laptop structure also includes a shell 3, which is snapped into the keyboard 2, and a connecting piece 4 is provided on the front of the motherboard 1, which abuts against the shell 3.

[0048] Specifically, an annular groove is machined on the inner wall of the outer casing 3, and an elastic latch is set at the corresponding position on the edge of the keyboard 2. The latch is embedded in the groove to achieve screwless fixing. A columnar abutment 4 is injection molded on the front edge of the motherboard 1. The top of the abutment 4 is machined into a spherical structure that matches the curvature of the inner surface of the outer casing 3. The height of the abutment 4 is slightly greater than the theoretical distance between the motherboard 1 and the outer casing 3. Assembly tolerances are eliminated by material compression deformation.

[0049] In some embodiments, the abutment 44 is attached to the locking screw of the heat dissipation module on the motherboard 1, and the abutment 4 is made of conductive rubber.

[0050] Specifically, the conductive rubber is pre-injected into a cylindrical structure with a central through hole, and the inner hole thread matches the thread parameters of the heat dissipation module locking screw. When assembling the heat dissipation module, the conductive rubber abutment 4 is screwed into the root of the locking screw and fixed to the screw shaft by thread engagement. At the same time, the inherent conductivity of the conductive rubber is utilized to form a conductive path with the ground layer of the motherboard 1 through the locking screw.

[0051] like Figure 2 As shown, the front of the motherboard 1 is also provided with several support points 13, which abut against the outer shell 3 to support the outer shell 3.

[0052] Specifically, support points 13 are set along the outer periphery of the chip location on the motherboard 1, and a micro universal joint structure is set at the bottom of the support points 13, allowing the top of the support points 13 to adaptively adjust the contact height within a range of ±5°. Secondly, the top surface of the support points 13 can be textured to increase the coefficient of friction with the contact surface with the inner wall of the outer casing 3.

[0053] In some embodiments, the high-strength laptop structure also includes a display module, which is rotatably connected to the integral structure formed by the snap-on keyboard 2 and the outer casing 3.

[0054] Specifically, an integrated hinge cavity is set at the edge of the overall structure formed by the snap-fit ​​of the keyboard 2 and the outer shell 3, and a multi-axis linkage damping hinge assembly is installed in the cavity; a U-shaped slot matching the hinge assembly is machined at the bottom of the display module frame, and the hinge and the slot are rotated through a precision bearing; a bidirectional limiting ratchet mechanism is set inside the hinge, so that the display module can stop in segments within the range of 0°-180°.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0061] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0062] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high-strength laptop computer structure, characterized in that, Includes: a motherboard and a keyboard. The motherboard has a clearance area on its back, and the keyboard has a keyboard bracket. The keyboard bracket has reinforcing ribs at positions corresponding to the clearance area. The lower surface of the reinforcing ribs is in zero-gap contact with the surface of the clearance area to form a continuous surface support structure.

2. The high-strength laptop computer structure according to claim 1, characterized in that, The height surface design tolerance of the designated airspace is 0 mm.

3. The high-strength laptop computer structure according to claim 2, characterized in that, The clearing area is enclosed by a rectangular support frame. Support arms extend inward from the middle of the top and bottom sides of the rectangular support frame, and their ends do not intersect, so as to divide the clearing area into two interconnected regions.

4. The high-strength laptop computer structure according to claim 3, characterized in that, The reinforcing rib is a continuous protrusion provided on the keyboard bracket corresponding to the rectangular support frame, and the continuous protrusion abuts against the rectangular support frame.

5. The high-strength laptop computer structure according to claim 4, characterized in that, The rectangular support frame is provided with a plurality of positioning holes, and the continuous protrusion is provided with a plurality of snap-fit ​​parts corresponding to the positioning holes, and the positioning holes are snapped into the snap-fit ​​parts.

6. The high-strength laptop computer structure according to claim 5, characterized in that, The snap-fit ​​component is a stepped boss, and the snap-fit ​​component and the positioning hole are interference fit.

7. The high-strength laptop computer structure according to claim 3, characterized in that, The rectangular support frame is a flexible conductive structure.

8. The high-strength laptop computer structure according to claim 1, characterized in that, It also includes a housing that snaps into the keyboard, and a retaining member on the front of the motherboard that abuts against the housing.

9. The high-strength laptop computer structure according to claim 8, characterized in that, The motherboard also has several support points on its front side, which abut against the outer casing to support it.

10. The high-strength laptop computer structure according to claim 8 further includes a display module, wherein the display module is rotatably connected to the integral structure formed by the keyboard and the outer casing after being snapped together.