Electronic device edge steady-state support pedestal and geometric design method thereof

Abstract

The application discloses an electronic device edge steady-state support base and a geometric design method thereof, the base comprising a rigid body and a fixed part arranged on the side of the rigid body facing the electronic device; the cross section of the rigid body perpendicular to the mounting extension direction has a steady-state support structure with trapezoidal steady-state characteristics, so that the electronic device can be stably supported at a preset inclination angle, and the orthographic projection of the gravity center of the device on the placement plane is always located in a support interval formed by the bottom edge of the device and the support edge of the base; the height of the rigid body satisfies a steady-state support inequality based on the balance of the gravity moment; the rigid body can be provided with a functional accommodation part and an external load interface meeting the stress partition management requirement, so as to realize functional integration and expansion; the application solves the problems of single function of the existing mobile device accessories, easy tilting without precise steady-state design and poor load bearing reliability, and is suitable for multiple sizes of electronic devices, and significantly improves the portability and multi-scene adaptability of the product.

Description

Technical Field

[0001] This invention relates to the field of electronic device accessories technology, specifically to a universal stable support base installed on the edge of an electronic device, and also to a geometric design method for the stable support base. Background Technology

[0002] With the increasing demand for mobile office and portable entertainment, mobile devices such as tablets and smartphones are becoming increasingly feature-rich. To meet the needs of handwriting input, long battery life, and multi-angle viewing, users typically need to equip their devices with various accessories such as pen holders, power banks, and stand supports.

[0003] Taking common adhesive accessories as an example, existing mobile device adhesive accessory technology has the following drawbacks:

[0004] Existing adhesive accessories have limited functions, such as simply storing a stylus or serving as a stand. When multiple functions are required, multiple accessories not only occupy a large amount of space on the back of the device but also significantly increase the overall thickness and weight, seriously undermining the original purpose of portability for mobile devices.

[0005] Existing adhesive-bonded accessories typically use full-plane bonding without considering load distribution. When accessories also serve a load-bearing function (such as carrying or supporting equipment with ropes), the lack of avoidance of stress-sensitive areas makes it easy for the overturning torque generated by external loads to induce peeling (lifting) of the adhesive layer from the edges of the accessories, leading to accessory detachment and equipment damage.

[0006] Large electronic devices typically rely on backpack storage or handheld carrying. Existing accessories lack a universal, ergonomically designed interface that can be deeply integrated with the device, making it difficult to provide users with diverse interactive experiences such as carrying on the back or modular connections without increasing size.

[0007] Existing support accessories lack precise steady-state geometric design logic, making it impossible to achieve reliable anti-tipping support while minimizing volume, and failing to balance portability and support stability.

[0008] In summary, there is an urgent need for a universal edge base that can provide stable support through precise geometric design and reliably expand multiple functional modules (such as stylus storage, energy supply, and lanyard carrying) through scientific mechanical layout. Summary of the Invention

[0009] The purpose of this invention is to provide a stable support base for the edge of electronic devices, which solves the problems of existing adhesive accessories, such as limited functionality, occupying space on the back of the device, lack of precise stable geometry design which makes it impossible to balance portability and anti-tipping stability, unreasonable load distribution which makes them easy to fall off, and lack of universal expansion interfaces. At the same time, the invention provides the geometric design logic of the base to achieve reliable stable support and modular functional expansion with minimal volume.

[0010] Core technical solutions:

[0011] This invention provides a stable edge support base for an electronic device, comprising a rigid body and a fixing part disposed on the side of the body facing the electronic device, which is fixed to the back edge region of the electronic device or its protective shell by the fixing part. The mounting extension direction of the rigid body connected to the electronic device or its protective shell via the fixing part is defined as the height direction, which is consistent with the extension direction of the edge of the electronic device on which it is mounted. Its core feature is that the outer contour of the cross-section of the rigid body parallel to the height direction has at least one stable support structure, exhibiting a trapezoidal stable characteristic. When the electronic device or its protective shell is fixed to the base, one side of the stable support structure acts as a physical fulcrum, contacting the placement plane, causing the electronic device to form a preset target tilt angle θ. Furthermore, the orthogonal projection point of the center of gravity of the electronic device at the preset tilt angle θ onto the placement plane is always located within the support area between the bottom edge of the electronic device and the outermost edge of the stable support structure of the rigid body, achieving stable support against tipping.

[0012] To ensure the stability of the equipment under tilt, this invention establishes a height constraint model based on the balance of the center of gravity moment. The height of the rigid body... The following steady-state support inequalities must be satisfied:

[0013]

[0014] In the formula: This is the maximum dimension of the rigid body in the direction perpendicular to the plane on the back of the electronic device. The width of the target electronic device perpendicular to the mounting extension direction. For the thickness of the target electronic device, The preset target tilt angle, The chamfer radius is the end radius of the rigid body, where the end is the supporting end of the rigid body near the placement plane; To ensure stable redundancy, the configuration is used to compensate for manufacturing tolerances and environmental interference, with a value satisfying δ≥0. In this scheme, the stable redundancy... The introduction of this is crucial to ensuring the system transitions from "theoretical equilibrium" to "engineering reliability." Under an ideal static physical model, when... At this point, the vertical line of the system's center of gravity falls precisely on the edge of the supporting surface, placing the system in a critical equilibrium state, making it highly susceptible to overturning due to even minor external forces. This invention addresses this by setting... (The recommended value range for δ is 1mm-6mm; in one preferred embodiment, δ is 2mm.) The following technical defense mechanism is established:

[0015] Compensation for dynamic operating loads: Considering that users will experience dynamic load vibrations when clicking or swiping the screen while the device is standing, δ provides the necessary torque buffer to prevent the device from tipping over due to operating forces.

[0016] Environmental disturbance tolerance: It compensates for minor unevenness of the placement surface (such as an outdoor table or a slightly sloping object surface) to ensure that it can still maintain a steady state on a non-ideal surface.

[0017] Eliminate the effects of manufacturing tolerances: compensate for injection shrinkage, adhesive layer thickness fluctuations, and positional deviations during the base production process.

[0018] By precisely setting δ, this invention ensures absolute stability while perfectly balancing the product's aesthetic proportions and portability.

[0019] In the geometric design of this step, if the symmetry of the structure is not considered, other polygons besides trapezoids, such as parallelograms, triangles, or irregular quadrilaterals, based on the mechanical principles of this invention, can also achieve the same stable state effect. As long as the supporting surface in contact with the placement plane and the adhesive surface in contact with the back plane of the electronic device satisfy the geometric orientation relationship derived from the trapezoid described above, the same stable support effect can be achieved, which is an optional embodiment of this invention. Optionally, to obtain better versatility and uniform force distribution, an isosceles trapezoid can be used as the basic embodiment.

[0020] Furthermore, optionally, in order to reduce volume and resolve the bulkiness caused by the long strip base being fixed to the edge, the cross-section of the rigid body adopts a "multi-stage" evolution design.

[0021] Specifically, in a cross-section perpendicular to the length direction, the multi-stage structure includes at least two stages connected sequentially from the fixing part upwards along the direction away from the placement plane; the cross-section of each stage is any one of rectangle, trapezoid, or polygon, and the most convex outward edges on the same side of all stages constitute the outer contour of the stable support structure; along the direction away from the fixing part, the lateral dimension of each stage in the direction perpendicular to the back plane of the electronic device decreases sequentially, forming a "multi-stage" evolution feature that gradually narrows from the end near the fixing part to the end away from the fixing part.

[0022] Mechanically, this structure ensures that the bottom support width meets the stability requirements of δ, while ergonomically it greatly reduces the lateral encroachment of the top of the base, improving the feel of the grip when held by the user, thus achieving a high degree of unity between function and aesthetics.

[0023] Optionally, the fixing part can be any one of the following: an adhesive layer, a detachable fixing plate adapted to the magnetic area on the back of the electronic device, or a snap-fit ​​fixing structure. The corresponding fixing method can be selected according to the usage scenario.

[0024] Any height satisfies the above inequality (i.e. Design schemes that utilize the center-of-gravity balance principle of this invention (≥ theoretical critical value) are all optional implementations of this invention. Designers can achieve higher redundancy stability by increasing the height (i.e., increasing the δ value) at the expense of some portability; such schemes are also within the scope of protection of this invention.

[0025] This invention essentially reveals the core physical critical logic for achieving stable edge support in mobile devices. If the product height is below the critical threshold determined by this formula, its center of gravity projection will inevitably exceed the physical support range, leading to support failure. Therefore, any design that achieves the same standing effect and maintains stability through a fixed connection adopts the geometric proportion logic described in this invention.

[0026] When the fixing part is selected as the adhesive layer, the adhesive layer may optionally use acrylic pressure-sensitive tape (such as 3MVHB series or high-performance nano traceless tape) as the adhesive medium.

[0027] When the fixing part is selected as the adhesive layer, in order to solve the problem of warping, detachment and lateral swaying that easily occur when the adhesive base bears heavy external loads (such as carrying ropes, large brackets or functional modules), this invention proposes an interface layout scheme based on stress zoning management and torque balance:

[0028] 1. Horizontal direction ( Stress safety zones of the shaft:

[0029] This invention optimizes the load transfer path at the adhesive interface, thereby adjusting the position of the external load interface along the length L of the rigid body. Scientific restrictions should be imposed. Specifically, the interface is preferably located in the end anchoring area ( or ) and the central anti-tilling zone ( This partitioned design deliberately avoids the stress-mixed failure sensitive areas located between 0.19L and 0.23L and between 0.77L and 0.81L. By utilizing the shear resistance of the edge adhesive layer or the long lever arm effect in the central region, it ensures that the load is absorbed smoothly and structurally prevents the adhesive layer from cascading off from the edge.

[0030] 2. Vertical direction ( The principle of low-position torque of the shaft:

[0031] To suppress the overturning torque from a geometrical perspective, this invention sets the force center height of the interface. Must meet By bringing the load application point as close as possible to the bonding plane, the peeling arm generated by the external tension is greatly shortened, effectively mitigating the "pry bar" effect on the bonding edge when the base is subjected to dynamic tension, and significantly improving the reliability of the device under heavy load conditions.

[0032] 3. Span optimization logic for lateral support:

[0033] For scenarios requiring connection to rigid expansion components (such as photography extension components, large heat dissipation modules, or support components), this invention proposes a multi-interface collaborative lateral steady-state model. When the external load interfaces are located in the central anti-tipping zone and there are at least two of them, this invention limits the overall distribution span of the interface group. To eliminate the risk of lateral instability.

[0034] Specifically, the distance between the geometric center of the leftmost interface and the geometric center of the rightmost interface is specified. This long-span design establishes a stable lateral support benchmark along the length of the base, ensuring that the components can provide sufficient torsional torque when the electronic device is in the extended attachment state. This eliminates the swaying sensation commonly found in long, narrow bases under stress, achieving ultimate dynamic operational stability.

[0035] The rigid body includes at least one functional housing, which is configured as at least one of the following: a stylus storage module, a power bank module, a magnetic module, a light module, a heat dissipation module, a display module, a digital expansion module, a data exchange module, an interface expansion module, or a physical support component; thereby expanding the functions of the rigid body.

[0036] The functional housing can be an integral, non-removable structure, integrally formed with the rigid body; or it can be detachable, so that removing the functional housing does not affect the setting of the external load interface on the rigid body. Users can choose an integral, fixed functional housing, or choose whether to install a detachable functional housing or replace it with a detachable functional housing with different functions, depending on the usage scenario.

[0037] The rigid body has an inwardly recessed mounting groove on the side facing the electronic device, and the fixing part is filled in the mounting groove; the thickness of the fixing part is greater than the depth of the mounting groove to ensure that, in the connected state, a preset force gap is maintained between the edge of the rigid body and the surface of the electronic device, thereby allowing the fixing part to undergo elastic deformation to absorb the dynamic load transmitted by the external load interface.

[0038] This invention, through a multi-dimensional scientific layout of the load interface, achieves a dynamic protection system that ensures the fixed part is "unpullable" horizontally, "unpryable" vertically, and "unshakeable" during lateral operation. This logical closed loop, from the underlying mechanical design, systematically blocks the structural failure path of adhesive-backed components under dynamic loads, ensuring the stability of the base under complex working conditions.

[0039] The beneficial effects of this invention are as follows:

[0040] 1. A quantitative and traceable steady-state support engineering standard has been established, taking into account both portability and anti-tipping stability.

[0041] This invention overcomes the limitations of traditional adhesive-mounted supports designed solely based on experience, proposing a height constraint model based on the balance of center of gravity moments. This is achieved by introducing a stability redundancy. This invention not only achieves theoretical static equilibrium but also effectively compensates for dynamic load vibrations generated during user interaction from an engineering perspective. It ensures that electronic devices maintain anti-flip safety even when relying solely on narrow edge strip bonding, solving the industry pain point of balancing size, functionality, and stability.

[0042] 2. Achieved deep synergy between visual thinning and ergonomics.

[0043] To address the visual bulkiness caused by the long, narrow base being glued to the edge, this invention employs an innovative "multi-stage" evolving geometric configuration. By narrowing the second-stage transition surface at a large angle, the lateral encroachment of the base's top is significantly reduced while maintaining the stable support width at the bottom. This "waist-cinching" design not only achieves visual thinning but also conforms to the finger-clamping curve in its physical structure, significantly improving the grip and anti-slip performance when holding the device.

[0044] 3. A highly reliable adhesive interface load management system was established, which solved the problem of adhesive accessories being prone to lifting and falling off.

[0045] This invention solves the problems of existing adhesive fittings easily lifting and falling off, and lateral shaking when bearing external loads by scientifically reshaping the load path of the adhesive interface.

[0046] Stress zone anchoring: The interface is placed in the end anchoring area, and the high shear strength of the edge adhesive layer is used to directly absorb the external tensile force.

[0047] Low-position torque principle: satisfying the requirement by limiting the interface height. (Preferred satisfaction) This design maximizes the compression of the flipping lever arm and significantly reduces the peeling force acting on the adhesive interface.

[0048] This system ensures that the bonding interface remains stable for a long time when the base is performing heavy-duty tasks such as "carrying ropes".

[0049] 4. A clever balance between functional modularity and stability gains has been achieved.

[0050] This invention, through its "universal base" design, achieves scenario coverage ranging from pen slot storage to power supply. By using the battery cell unit as an innovative "center-of-gravity counterweight," the component's own weight further compresses the bonding interface, transforming "functional weight" into "stable asset." Simultaneously, the modular design ensures users can freely switch between "ultra-lightweight" and "all-around support," significantly expanding the scenario adaptability of mobile terminals.

[0051] 5. Significantly improved lateral operational stability during external expansion.

[0052] By limiting the distribution span of multiple interface groups This invention establishes an extremely wide torque balance reference along its length. This enables electronic devices to effectively resist torsional torque when under load, physically eliminating the "lever wobbling" phenomenon commonly found in long, narrow bases, and ensuring dynamic operational stability in external expansion scenarios. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only twenty-two of the drawings in this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0054] Figures 1 to 6 This invention demonstrates the geometric evolution and mechanical determination process of the support base based on the principle of center of gravity balance:

[0055] Figure 1 This is a schematic diagram of the basic steady-state cross section (trapezoidal steady-state feature) constructed in step 2 of Embodiment 1 of the present invention;

[0056] Figure 2 This is a schematic diagram of the multi- (double)-stage prototype structure evolved from step 3 in Embodiment 1 of the present invention;

[0057] Figure 3This is a schematic diagram of the waist-slimming structure formed after "waistline cutting" optimization in step 4 of Embodiment 1 of the present invention;

[0058] Figure 4 This is a summary diagram of the evolution of the support base construction process of the present invention (a, b, c, and d correspond to different stages).

[0059] Figure 5 This is a comparative schematic diagram showing the tilt support of electronic devices at various stages of the present invention.

[0060] Figure 6 for Figure 4 Enlarged view of the mechanical stress point at the contact between the central base support and the placement plane;

[0061] Figure 7 A schematic diagram of a support base structure with a stylus slot;

[0062] Figure 8 for Figure 7 Rear view of the support base;

[0063] Figure 9 for Figure 7 A multi-angle schematic diagram of the support base supporting the electronic device;

[0064] Figure 10 for Figure 7 The specific dimensions of the support base;

[0065] Figure 11 This is a schematic diagram of the basic steady-state cross section (trapezoidal steady-state feature) of Embodiment 2 of the present invention;

[0066] Figure 12 for Figure 11 Schematic diagram of the structure of the central support base;

[0067] Figure 13 for Figure 12 A schematic diagram of the structure supporting tablets of different sizes using a central support base;

[0068] Figure 14 This is a schematic diagram of the connection between the functional housing and the support base in Embodiment 3 of the present invention. Figure 1 ;

[0069] Figure 15 This is a schematic diagram of the structure in Embodiment 3 of the present invention, showing the detachable connection between the functional housing and the support base. Figure 2 ;

[0070] Figure 16 This is a diagram showing the usage state of the support base with a detachable receiving part according to Embodiment 3 of the present invention;

[0071] Figure 17 is a structural schematic diagram of the basic steady-state cross section (trapezoidal steady-state feature) of Embodiment 4 of the present invention;

[0072] Figure 18 This is the usage state of the support base in Embodiment 4 of the present invention. Figure 1 ;

[0073] Figure 19 This is the usage state of the support base in Embodiment 4 of the present invention. Figure 2 ;

[0074] Figure 20 This is a schematic diagram of the specific structure of the electronic device protective housing and support base according to Embodiment 4 of the present invention;

[0075] Figure 21 This is a schematic diagram illustrating the portable carrying method of the present invention after it is connected to the lanyard assembly via an external load interface;

[0076] Figure 22 This is a schematic diagram illustrating the extended use of the present invention after connecting to the photography expansion component and handle via an external load interface;

[0077] In the diagram, 1-rigid main body, 2-functional housing, 3-adhesive layer, 4-external load interface, 5-mounting slot, 6-magnetic back panel, 7-battery cell, 8-bayonet structure, 9-phone case, 10-positioning groove, 11-positioning protrusion, 12-tablet computer, 13-lanyard assembly, 14-photography extension assembly, 15-adapter base. Detailed Implementation

[0078] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the invention and to demonstrate to those skilled in the art the application logic of the invention in different functional scenarios. It should be understood that the accompanying drawings, specific structural parameters, and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0079] In the description of this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this invention, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 invention according to the specific circumstances.

[0080] It is particularly important to note that the various mathematical formulas, proportional values ​​(such as height formulas, stress zoning ratios, distribution spans, etc.) involved in the embodiments of this invention, as well as the resulting engineering redundancy, are all intended to reveal the mechanical logic and steady-state judgment criteria behind this invention. In actual product development, any parameter fine-tuning made by those skilled in the art based on the concept of this invention for electronic devices of different sizes, weights, or materials should be covered within the scope of protection of this invention.

[0081] Example 1: Demonstration of the geometric design method for a steady-state support base at the edge of an electronic device:

[0082] This embodiment uses the iPad mini 7 tablet as an example to illustrate in detail the complete geometric design process of an "edge-stabilized support base" in this invention, from physical modeling and parameter solving to morphological evolution. This process reveals how to transform the abstract center-of-gravity balance formula into a physical entity with definite stable characteristics, thereby designing an adhesive multi-functional pen slot with an edge-stabilized support base as its main body.

[0083] In the design of this product, portability of the pen slot was the primary consideration, and the height of the base was also taken into account. The solution is obtained by taking the minimum value under steady-state conditions to obtain the product's excellent adaptability and improve the user's carrying convenience; at the same time, it achieves anti-tipping steady-state support, taking into account both portability and support stability while minimizing the volume.

[0084] In addition, the base width is introduced. The concept of this parameter is not directly related to the core steady-state support function of this invention and has not been described in the previous invention description. The lateral width of the base is directly related to the dimensions of the functional components to be housed in the functional enclosure. In this embodiment, the product design aims to accommodate styluses such as the Apple Pencil. After comprehensive engineering considerations, [the desired lateral width is specified here]. As a preferred option, a balance is achieved between stable storage of the stylus and structural strength.

[0085] Correspondingly, the total length L of the rigid body 1 along its length direction is also designed with the core objective of accommodating the storage needs of styluses such as the Apple Pencil, while also matching the bottom mounting dimensions of the target device, the iPad mini 7. In this embodiment, the following is selected: .

[0086] Step 1: Based on physical boundaries Threshold solution

[0087] First, the physical dimensions of the target device, the iPad Mini 7, were determined to be 195.4mm × 134.8mm × 6.3mm, serving as boundary conditions for the design input, in order to obtain... Core parameter metrics:

[0088] Equipment characteristic: width ,thickness .

[0089] Design steady-state target: Set preset support tilt angle This angle is the optimal parameter for balancing screen interaction stability and visual comfort.

[0090] Base top constraint: Sets the chamfer radius of the top edge of the base. This is to ensure that the edges do not produce a sharp feel.

[0091] According to the steady-state support inequality described in this invention:

[0092]

[0093] Substitute the values ​​to solve:

[0094]

[0095] To cope with dynamic loads in real-world usage scenarios (such as vibrations during touch operation), a stability redundancy is introduced. Calculations show that the theoretical critical equilibrium height is approximately 13.15 mm. After adding redundancy, the final design total height of this base is determined. .

[0096] Step 2: Geometric construction of the base stable core

[0097] In determining Then, the initial cross-sectional profile of the base is constructed.

[0098] Draw a geometric structure with trapezoidal features, the key feature of which is that the angle between a sloping waist plane (support surface) and the horizontal reference plane is set to 11° (i.e., the supplementary angle of the preset target tilt angle). For example... Figure 1 Implemented at the vertex The chamfering treatment is then applied. At this point, the base possesses the minimum physical framework to achieve a steady-state support of 11°. For details on the structure and support configuration, please refer to [link to details]. Figure 1 .

[0099] Step 3: Construction of the multi-stage base prototype (trapezoidal steady-state characteristic evolution stage)

[0100] To balance the bottom bonding area (strength requirements) and the support height (steady-state requirements), the solid form was transformed into a "two-stage structure":

[0101] Underlying base construction: Inherit the bottom width from step 2 to ensure sufficient anti-overturning torque.

[0102] Second-order stacking: A second-order structure is stacked on top of the bottom base, and the chamfering design from step 2 is repeated. While the resulting "two-tier solid block" meets the requirements, its shape is rather bulky and may interfere with the user's grip. See details on the structure and support configuration. Figure 2 .

[0103] Step 4: Ergonomic waistline cutting (trapezoidal waist reduction structure optimization stage)

[0104] Material reduction optimization is performed on the solid block in step 3 to achieve the "visual thinning" and "grip fit" described in the claims:

[0105] Stress Retention and Volumetric Cutting: While strictly preserving the two core stress-bearing areas, the "bottom bonding area" and the "top support fulcrum," redundant material in the solid waistline section (such as...) is removed. Figure 3 (The dark shaded area in the middle).

[0106] Structural evolution effect: The inwardly tapering streamlined profile formed after cutting is the "waist-cinching structure" described in this invention. This structure maintains... While maintaining a stable height, it significantly reduces the visual thickness and provides a natural gripping space for the user's fingers. Its evolution and support state are shown in Figure 3.

[0107] Step 5: Functionalization of Rigid Body 1 (Taking pen slot storage as an example)

[0108] After completing the closed loop of the above geometric design method, the rigid body 1 is finally configured for functionality. In this embodiment, a functional accommodating part 2 is formed in the internal space of the rigid body 1, which is formed as a stylus slot for inserting and storing a stylus.

[0109] The final realized base is as follows Figure 7-8 As shown, its height is precisely locked at 15.18mm, achieving 11° steady-state support while possessing a lightweight two-stage form.

[0110] Figure 4 The entire evolution of the above design method is illustrated: a corresponds to basic geometric construction, b corresponds to two-stage morphological evolution, c1 / c2 corresponds to waistline cutting optimization, and d corresponds to final functionalization. It is worth emphasizing that the morphology generated in any of the above stages (a, b, c, d) satisfies the geometric height constraints defined in this invention, and therefore all possess equal steady-state support performance. Their support state reference diagram and enlarged mechanical force point diagram are shown in Figure 5. Figure 6 As shown.

[0111] Step 6: Compliance-compliant layout design of external load interfaces

[0112] After the functional design of the base is finalized, based on the stress zoning management logic of this invention, an external load interface 4 is set on the rigid body 1, such as... Figure 7-10 As shown, the specific design is as follows:

[0113] 1. Determination of basic parameters

[0114] In this embodiment, the total length of the rigid body 1 along the length direction is... Define the left end (head) of the rigid body 1 along its length as the origin of the coordinate system, the bottom surface of the adhesive layer 3 as the reference surface for measuring the vertical height, and the total height of the base. The rigid body 1 has an inwardly recessed mounting groove 5 on the side facing the electronic device. The adhesive layer 3 is filled in the mounting groove 5, and the thickness of the adhesive layer 3 is greater than the depth of the mounting groove.

[0115] 2. Horizontal zoning layout

[0116] This embodiment has a total of 5 external load interfaces 4 (2 at the end anchoring area + 3 in the middle anti-overturning area). The interface type is an oblong through hole (it can also be set as a blind hole, slot, or magnetic suction position according to requirements). The position x of the interface meets the stress safety zoning requirements of this invention.

[0117] End anchoring area (2 interfaces):

[0118] Left end interface: The coordinates are 5mm (0≤5≤34.77, satisfying 0≤5). ≤0.19L), utilizing the high shear strength of the edge adhesive layer to directly absorb external tension such as hanging ropes, preventing the adhesive layer from peeling off;

[0119] Right end interface: The coordinate is 178mm (148.23≤178≤183, satisfying 0.81L≤ (≤L), symmetrically arranged with the left end interface, to improve the balance of force.

[0120] Central anti-rollover zone (3 joints):

[0121] Left middle interface: The coordinate is 49.1 mm (42.09 ≤ 49.1 ≤ 140.91, satisfying 0.23L ≤ ≤0.77L);

[0122] Middle-center interface: The coordinate is 91.5mm (42.09≤91.5≤140.91, satisfying 0.23L≤ ≤0.77L);

[0123] Right middle interface: The coordinate is 133.9mm (42.09≤133.9≤140.91, satisfying 0.23L≤ ≤0.77L);

[0124] All three interfaces avoid the stress failure sensitive areas of 0.19L-0.23L and 0.77L-0.81L, and utilize the long lever arm effect to balance the overturning torque of the external components.

[0125] 3. Vertical low-position torque design

[0126] The geometric center of all external load interfaces 4, vertically distance from the bottom surface of the adhesive layer 3. ,satisfy The requirement of 7.59mm minimizes the compression of the flipping lever arm, alleviates the "pry bar" effect on the bonded edge during dynamic pulling, and ensures the reliability of the bond under heavy load conditions.

[0127] 4. Lateral support span optimization

[0128] Of the three interfaces in the central rollover resistance zone, the left and right central interfaces are selected as lateral support references, and the span of their geometric centers is... =133.9-49.1=84.8mm, which satisfies the condition. The requirement of ≥0.4L (73.2mm) establishes a wide range of torque balance benchmarks in the length direction, eliminating the "lever swaying" phenomenon when a rigid component is connected to a long strip base.

[0129] Step 7: Interface Functionality Verification and Supporting Implementation

[0130] 1. In this embodiment, the external load interface 4 can be connected to the lanyard assembly 13, the photography extension assembly 14, the extension fill light, and other connecting components. The connecting components are fixed to the interface by screws, clips, etc., to bear the corresponding functional load, realizing the modular expansion of the rigid main body 1. Figure 16 , Figure 19 , Figure 21 , Figure 22 Application scenarios.

[0131] 2. In this embodiment, the functional housing 2 (pen slot) is a non-removable structure integrally formed with the rigid body 1. The inner cavity size of the pen slot is adapted to the diameter and length of the Apple Pencil, and does not affect the normal use of the external load interface 4 on the rigid body. Figure 7 and Figure 8 .

[0132] 3. Verification shows that, under the condition of installing a hanging rope to carry a flat plate load and attaching an external photography bracket, the rigid body 1 of this embodiment does not have any peeling or falling off of the adhesive layer, and the flat plate does not shake or tip over when tilted, fully meeting the steady-state support and load management requirements of this invention.

[0133] Example 2

[0134] This embodiment illustrates a heavy-duty extended application scenario for a stable edge support base for electronic devices. Taking a magnetic backplate integrated power bank support base (where a rechargeable battery is placed within the functional accommodating area 2 of the rigid body 1 to form the power bank support base) as an example, the target is an iPad Pro M1 12.9-inch tablet. The core verification demonstrates the universal applicability of the geometric design method of this invention to large-size device scenarios. Figure 11 , 12 , Figure 13 As shown.

[0135] This embodiment differs from the "portability-first" design approach of Embodiment 1: it does not prioritize extreme portability, but focuses on the heavy-load steady-state performance of large-sized devices, and the height of the base is not a primary consideration. Sufficient engineering redundancy is reserved to enhance anti-rollover stability under extreme working conditions.

[0136] 1. Target equipment and boundary parameter settings

[0137] The iPad Pro M1 12.9-inch tablet computer adapted in this embodiment has a large screen size and a relatively high center of gravity. Touch operation is prone to generating a large flip torque, which can fully verify the engineering redundancy capability of the present invention.

[0138] Key parameters of the equipment: Overall dimensions 280.6mm × 214.9mm × 6.4mm, target width for steady-state calculation. Equipment thickness ;

[0139] Tilt Design Logic: To adapt to the visual experience of large-screen viewing, this embodiment sets the default tilt angle of the rigid body 1 to 12°. Due to the large size of the 12.9-inch device, when the user clicks on the upper area of ​​the screen or performs drawing operations, the device is prone to generating a large flipping torque. To improve the stability of use in this scenario, this solution strengthens the anti-flip performance of the rigid body 1 and sets a threshold that the rigid body 1 can still maintain stable support even when the iPad is tilted to 30°. That is, the rigid body 1 actually needs to meet the anti-flip angle requirement of 30°, but its fixed usage angle is 12°. Therefore, θ=30° is used as the check angle in steady-state calculation.

[0140] Structural boundary parameters: Chamfer radius at the top of rigid body 1 Stable redundancy .

[0141] 2. Calculation of the geometric dimensions of the base core

[0142] Based on the steady-state support inequality of this invention, and combined with boundary parameters, the core dimensions are calculated as follows:

[0143]

[0144] Substituting the parameters, we get:

[0145]

[0146] In this embodiment, the final design total height of the rigid body 1 is determined. This embodiment uses the same parameter definitions as in Embodiment 1: L represents the lateral width of the rigid body 1 perpendicular to the length direction, and L represents the total length of the rigid body 1 along the length direction. The core value of both depends on the size of the functional components to be housed in the functional housing 2. In this embodiment, three 21700 specification built-in battery cells are used, while taking into account structural strength, installation space of the fixing part, and equipment compatibility. The final value of this embodiment is determined as follows. .

[0147] 3. Fixed connection structure design

[0148] In this embodiment, the rigid body 1 is detachably connected to the magnetic back plate 6 via a bayonet structure. The back plate has a magnetic structure inside, with the magnetic working surface facing the back of the electronic device, corresponding to the magnetic area on the back of the tablet, thus achieving magnetic fixation between the rigid body 1 and the tablet. By replacing different models of the magnetic back plate 6, different models of tablet computers can be adapted to achieve the desired support effect, such as... Figure 13 As shown.

[0149] 4. Functional integration and mechanical optimization of mobile power banks

[0150] In this embodiment, the functional housing part 2 of the rigid body 1 is configured as a fully enclosed cell sealing chamber, as per the attached instruction manual. Figure 12 Cell assembly structure and base cross-section diagram:

[0151] Structural adaptation: The sealed compartment integrates three 21700 type cylindrical lithium battery cells, with a base width of... ,length It can fully accommodate the battery cell and reserve installation space for the charging and discharging circuit board and the Type-C fast charging interface;

[0152] Mechanical gain design: All battery cells are arranged in the low area of ​​the rigid body near the placement plane. The 150g-200g self-weight of the battery cells forms a counterweight effect, causing the overall center of gravity of the equipment and the base to shift towards the support surface, further enhancing the steady-state support performance.

[0153] Protection Boundary Explanation: Since charging and related functions are not the focus of this patent, the charging and discharging logic design will not be described in detail in this patent. Only the mechanical structure design of the base will be discussed.

[0154] 5. Steady-state performance verification

[0155] In this embodiment, the cross-section of the rigid main body 1 adopts the trapezoidal steady-state characteristic structure described in this invention, as indicated in the attached specification. Figure 12 The base contour design. In normal use, the rigid body 1 is fixed to the back edge of the flat plate by the magnetic back plate 6. The stable support structure is in contact with the placement plane, so that the flat plate forms a preset viewing tilt angle of 12°, and the center of gravity projection of the equipment is always located in the support area; even in extreme working conditions where the flat plate is tilted to 30°, it can still remain stable and not tip over.

[0156] Example: Three-part modular reconfigurable edge steady-state support base:

[0157] This embodiment represents an advanced evolution of the present invention, taking the adaptation to an 11-inch iPad Pro tablet as an example. Its core solution addresses the dynamic conflict between users' needs for "ultra-lightweight portability" and "full-scenario functional expansion," creating a differentiated design from the integrated structure of Embodiments 1 and 2. This embodiment decouples the integrated rigid body into two detachable independent physical units: a fixed adapter base 15 (component 1A) and a replaceable functional housing 2 (component 2B). The functional housing 2 is detachably connected to the adapter base 15, and removing the functional housing 2 does not affect the normal use of the external load interface 4 on the adapter base 15. The core geometric construction logic of the steady-state support structure in this embodiment has been fully described in Embodiments 1 and 2 and will not be repeated here. This embodiment presupposes a 12° tilt angle for normal use and sets a 20° anti-flip performance threshold. Substituting these values ​​into the steady-state support inequality calculation of the present invention, the total height of the combined base is finally determined. .

[0158] This embodiment is based on the functional housing 2, and designs three standardized functional modules: 2B1 data exchange module, 2B2 lighting module, and 2B3 power bank module. Figure 14 , Figure 15 , Figure 16 As shown.

[0159] System core design logic: separation and refactoring

[0160] Separate design

[0161] The "adhesive anchoring function with electronic devices" and the "physical support / functional housing function" are physically separated: the adapter base 15 (component 1A) is permanently fixed to the edge of the device, undertaking the functions of anchoring, universal interface, and basic load bearing; the functional housing part 2 (component 2B) is a replaceable independent module that can be disassembled and assembled as needed according to the usage scenario, without the need to repeatedly disassemble and assemble the adhesive base on the device, thus avoiding damage to the device shell from repeated pasting.

[0162] Redesign

[0163] Through a standardized universal connection interface, the functional housing 2 with different functions can be connected to the adapter base 15 to reconstruct a stable support structure that fully conforms to the mechanical standards of this invention, ensuring that the anti-tipping stable support requirements can be met no matter which functional module is replaced, as shown in the comparison diagram of the support posture of different modules in the attached figure of the instruction manual.

[0164] 1. Component 1A: Fixed adapter base 15

[0165] This component is the basic adapter structure remaining after the functional housing part 2 is removed. It serves as the anchor and interface reference for the entire system and corresponds to the base engineering dimension drawing in the attached diagram of the instruction manual.

[0166] Physical form: In this embodiment, the adapter base 15 has a thickness of The elongated substrate can be adjusted within the range of 5mm-10mm according to the application requirements; it is made of high-strength materials, taking into account both thinness and structural strength.

[0167] Fixing method: A fixing part is provided on the side of the substrate facing the electronic device. A high-strength adhesive layer 3 or a mechanical interlocking structure adapted to the protective case of the electronic device can be used to fix it stably to the edge of the back of the tablet computer for a long time.

[0168] Core Function Design

[0169] External load interface 4: Adapter base 15 at both ends ( Shaft end anchoring zone, 0≤ ≤0.19L or The pre-drilled lanyard hole / quick-release buckle assembly meets the stress zoning management requirements of this invention, allowing direct connection of a lanyard for portable carrying; it is compatible with the middle part of the base 15 ( Anti-rollover zone in the middle of the axle, 0.23L≤ (≤0.77L) Set up a universal interface array, which can connect to photography expansion components 14, tripods and other expansion accessories, corresponding to the tripod application scenario diagram in the attached diagram of the instruction manual.

[0170] In this embodiment, a total of 3 external load interfaces 4 are set in the central anti-rollover zone, and the geometric center distribution span of the leftmost and rightmost interfaces is... Satisfying the requirements of claim 8 The large-span lever arm design establishes a stable lateral support benchmark along the 15-meter length of the base, effectively resisting the torsional torque when external rigid expansion accessories are connected, eliminating the "lever swaying" phenomenon when the long strip base is under stress, and ensuring the dynamic operational stability when external expansion accessories are connected.

[0171] Universal connection interface: The adapter base 15 facing the functional housing 2 has at least one standardized connection structure, including a linear slide rail / groove for physical guidance, a mechanical interlocking structure, and an embedded magnetic adsorption array (such as N52 neodymium iron boron magnets or ferromagnetic metal sheets) for quick and stable connection with the functional housing 2.

[0172] 3. Component 2B: Replaceable functional housing 2

[0173] This component is a family of independent accessories with different functions but a unified standardized "male" interface. Depending on the strength requirements of the usage scenario, it can be detachably connected to component 1A using any one or a combination of the following three connection logics:

[0174] Logic 1: Magnetic self-alignment connection, suitable for light-load modules (such as the 2B1 data exchange module), automatically adsorbs and aligns when close, supports blind operation and quick assembly / disassembly;

[0175] Logic 2: Mechanical interlock connection, suitable for heavy-load modules (such as 2B3 power bank modules), which achieves physical engagement through interlocking slide rails, T-shaped buckles or elastic claws to ensure anti-pull-out and anti-shear stability;

[0176] Logic 3: Magnetic-assisted mechanical locking combines the advantages of the previous two methods. It achieves automatic centering and primary fixation through magnetic attraction, and then completes secondary locking through mechanical buckles, balancing convenience and structural reliability.

[0177] The three types of core functional modules in this embodiment are designed as follows, corresponding to the exploded view of the modules in the attached drawings of the specification:

[0178] 2B1 Data Exchange Module: The module has an M.2 SSD hard drive bay and an SD / TF card reader slot inside, and a Type-C data interface on the side, which can realize high-speed data reading and writing and storage expansion of the tablet; the outer contour of the module conforms to the trapezoidal steady-state characteristics of the present invention, and can be directly used as a support fulcrum after being connected to the base.

[0179] 2B2 Lighting Module: The module has built-in fill light beads and a power supply battery, which can provide auxiliary lighting for tablet shooting and hand-drawn creation; the outer contour of the module is perfectly matched with the stable support structure, and it does not affect the support stability of the base after being connected.

[0180] 2B3 Power Bank Module: The module has a built-in lithium battery cell and charging / discharging management circuit, which can replenish the power of the tablet. The battery cell is arranged in the low area of ​​the module near the placement plane, and its own weight forms a counterweight effect to further enhance the stable support performance of the base.

[0181] 4. Steady-state reconstruction mechanics rules after combination

[0182] Regardless of the connection method or the functional module selected, after component 1A and component 2B are combined, the following mechanical rules must be followed to ensure that the reconstructed structure fully meets the steady-state support requirements of this invention:

[0183] High-level superposition conservation rule

[0184] Total height of the assembled base It must satisfy the steady-state support inequality calculated for the target device. In this embodiment... .in To accommodate the thickness of the base, This refers to the effective height of the functional housing; in the non-assembled state, the sum of the heights of the two units can be greater than [missing information]. When assembled, the interlocking structure reduces the overall height, balancing the strength of individual structural units with the lightness and thinness of the assembled structure.

[0185] The outer contour support surface of the angle reconstruction consistent rule function receiving part, after being locked with the base, must form a supplementary angle relationship with the preset tilt angle θ. In this embodiment... This ensures the geometric correctness of the support points, allowing the flat plate to form a preset stable viewing angle, corresponding to the support posture diagram in the attached diagram of the instruction manual.

[0186] The distribution of the connection points (magnetic points / mechanical locking points) between component 1A and component 2B along the length direction must meet the following requirements: The large-span lever arm design ensures that the module will not rotate or wobble around the contact point when subjected to lateral operating forces, guaranteeing dynamic operational stability when external expansion accessories are connected.

[0187] 5. Application Scenarios and Steady-State Verification

[0188] Taking the 2B2 lighting module installed on an 11-inch iPad Pro as an example, the total height of the combined base is 36mm, which allows the tablet to maintain a stable viewing angle of 12°. Even under extreme conditions of tilting to 20°, there is no risk of tipping over. The quick-release buckle assembly at the end of the base can be connected to a lanyard, and the interface in the middle anti-tipping area can be connected to a photography tripod and lighting accessories. In an extremely compact size, it achieves multiple functions such as stable support, lighting, and photography expansion, meeting the needs of multiple scenarios.

[0189] Example 4: Magnetic Edge-Mounted Steady Support Base for Mobile Phones

[0190] This embodiment presents a lightweight application of the present invention in small-sized portable electronic devices such as smartphones. It targets the iPhone 15 Pro smartphone with a protective case, clearly differentiating it from the larger, modular designs of embodiments one through three, which are designed for tablet devices. This embodiment addresses the pain points of existing phone stands, such as relatively cumbersome installation, poor portability, lack of precise stable geometry leading to tipping, and inability to simultaneously meet the needs of desktop support and anti-loss. It fully inherits the core design logic of the present invention's center of gravity torque balance, achieving integrated functions of magnetic quick-installation, stable support, and portability and anti-loss. Figure 17 , Figure 18 , Figure 19 , Figure 20 As shown.

[0191] 1. Adaptation to target and core structural parameter design

[0192] This embodiment is a lightweight application solution of the present invention in small-sized portable electronic devices such as smartphones. The target device is the iPhone 15 Pro smartphone with a 1.5mm thick protective case. The steady-state support core logic and steady-state support inequality calculation method of the present invention have been fully and thoroughly described in the foregoing embodiments. This section focuses on describing the exclusive structural parameters and design considerations of this embodiment.

[0193] Based on the application scenario requirements of this embodiment and the aforementioned steady-state support inequality, the final design total height of the rigid main body is determined. The core design considerations for this size are twofold: first, it fully meets the anti-tipping and stable support requirements of the compatible models in this embodiment at a preset tilt angle of 11.5°; second, it reserves sufficient stability performance margin to cover the stable support needs of the upper limit of the conventional size of larger-screen flagship smartphones, achieving cross-model universality of a single base. When users subsequently replace their smartphones with larger ones, they do not need to purchase compatible bases again, greatly improving the product's universality and cost-effectiveness.

[0194] In this embodiment, the cross-section of the rigid body 1 perpendicular to its length direction has a trapezoidal steady-state geometric structure, and the supporting edge in contact with the placement plane forms an angle of 11.5° with the horizontal plane, precisely matching the preset mobile phone support tilt angle; the end of the rigid body 1 away from the placement plane is provided with The rounded corners not only prevent sharp edges from affecting the grip but also reduce the risk of bumps and damage during daily use; the rigid main body 1 has a magnetic structure that can be disconnected and fixed at any time without affecting the daily grip and use of the phone.

[0195] Tests have shown that the base structure of this embodiment fully meets the steady-state support requirements described in claim 1. When used in landscape mode, the phone can be stably tilted at a preset angle of 11.5°. Even under the dynamic load of screen touch, there is no risk of tipping over or shaking.

[0196] 2. Overall structural design

[0197] The base system of this embodiment comprises two parts: a rigid main body 1 (stable support base) and a magnetic adapter fixing part, which completely corresponds to the structural design in the accompanying drawings of the specification:

[0198] 2.1 Rigid Main Structure

[0199] The rigid body 1 can be integrally molded from various materials, including but not limited to high-strength engineering plastics, ABS / PC rigid plastics, food-grade silicone, and lightweight aluminum alloys. Among them, rigid engineering plastics can balance structural strength and lightweight, silicone can improve grip and anti-slip performance, and aluminum alloy can improve product texture. Different materials can fully realize the core functions of stable support and magnetic fixation of this invention.

[0200] The rigid body 1 has a cross-section perpendicular to its length direction, which is a geometric structure with the trapezoidal steady-state characteristics described in this invention. Its outer contour forms a support edge that is in continuous contact with the placement plane to ensure support stability. The body is embedded with an N52 neodymium iron boron magnetic structure, with the magnetic working surface facing the back of the mobile phone. This structure is used to achieve automatic alignment and adsorption with the magnetic adapter fixing part without manual adjustment. Users do not need to repeatedly align the parts; precise installation can be completed simply by placing the phone. The rigid body 1 has an external load interface 4 (lanyard hole) at its end, which can be connected to the lanyard assembly 13 to realize the function of an anti-loss pendant.

[0201] Without altering the core design of the trapezoidal steady-state cross section, magnetic structure installation space, and hanging hole function structure, the appearance of the rigid body 1 can be customized, including but not limited to mini totems, cartoon shapes, IP co-branded pendants, etc., to enhance the product's appearance recognition and consumer appeal while ensuring the core function of steady-state support, and to meet the aesthetic needs of different users.

[0202] 2.2 Magnetic adapter fixing part

[0203] This embodiment provides two full-scenario adaptation solutions that require no modification to the phone itself and cover all brands and models of smartphones:

[0204] Original factory adaptation solution: On the back edge of the iPhone 15 Pro dedicated phone case 9 corresponding to the rigid body 1, there is a built-in magnetic part that matches the polarity of the magnetic structure of the rigid body 1. The base can be brought close together to automatically attach and align, achieving instant installation and removal without additional pasting operations, taking into account both aesthetics and connection reliability.

[0205] Universal compatibility solution: An ultra-thin magnetic adhesive sheet is provided to match the magnetic structure of the rigid body 1. The back of the adhesive sheet is a traceless acrylic pressure-sensitive adhesive layer. Users can stick it to the corresponding position on the back edge of the iPhone 15 Pro ordinary protective case or other brand phone cases 9 to achieve magnetic fixation with the rigid body 1. There is no need to replace the dedicated phone case 9, and the compatibility range is wider.

[0206] 3. Usage and Performance Verification

[0207] 3.1 Steady-state support application scenarios

[0208] When users need to use their phones in landscape mode, they can simply place the rigid body 1 near the lower edge of the back of the phone case 9. The magnetic structure will automatically align and attach the phone, and the phone will be installed. The trapezoidal stable support structure of the rigid body 1 contacts the placement surface, keeping the phone stably at the preset viewing angle of 11.5°. This is suitable for scenarios such as watching videos, video calls, live streaming, and desktop time-lapse photography. No manual alignment is required; the phone can be used immediately after placement and removed for storage after use, without taking up extra space.

[0209] 3.2 Portable anti-loss pendant scenarios

[0210] When carrying the phone daily, simply thread the lanyard through the lanyard hole of the rigid body 1. The rigid body 1 will then attach to the bottom edge of the phone. The lanyard can be worn on the wrist or hung on a bag to prevent the phone from being dropped or lost. The rigid body is mini in size and does not affect the daily grip of the phone or the normal use of the side buttons and charging port. It can be removed or reattached at any time, balancing portability and practicality.

[0211] 4. Explanation of the advantages of the solution

[0212] This embodiment fully inherits the core steady-state support logic of the present invention, while making lightweight optimizations for the portable use requirements of smartphones:

[0213] Strictly following the center of gravity torque balance design of this invention, and combined with the magnetic automatic alignment structure, it achieves reliable anti-tipping and stable support in a mini size, which is "easy to place and easy to install, and stable immediately after installation". This breaks through the industry pain point that existing mini mobile phone holders require repeated alignment and adjustment and cannot quickly achieve stable support.

[0214] The magnetic quick-install design solves the problem of traditional phone holders being cumbersome to install and not readily available. The dual-adaptation solution not only matches the dedicated scenario of iPhone 15 Pro, but also covers general models, making it more adaptable.

[0215] Between the rigid body 1 and the phone case 9, there are mutually compatible positioning protrusions 11 and positioning grooves 10. When the rigid body 1 and the phone case 9 are magnetically connected, the positioning protrusions 11 are embedded in the positioning grooves 10 to achieve magnetic automatic alignment and positioning, thus avoiding installation offset and torsion of the rigid body 1.

[0216] The integrated design achieves the dual functions of desktop support and anti-loss on the go, fully expanding the application scenarios of this invention in small-sized portable electronic devices and further improving the technical solution coverage of this invention.

[0217] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A stable edge support base for an electronic device, comprising a rigid body, characterized in that: The rigid body has a fixing part on the side facing the electronic device for connecting to the electronic device or its protective shell. After the rigid body is connected to the electronic device or its protective shell via the fixing part, the direction perpendicular to the back plane of the electronic device is defined as the height direction of the rigid body, and the installation extension direction connecting to the electronic device or its protective shell is defined as the length direction of the rigid body, which is consistent with the extension direction of the edge on which the electronic device is mounted. The outer contour of the cross-section of the rigid body perpendicular to the length direction has at least one stable support structure. The placement plane is a horizontal support surface for supporting the electronic device and the base. When the rigid body is connected along the back edge of the electronic device or its protective shell via the fixing part, one side of the stable support structure contacts the placement plane, causing the electronic device to form a preset target tilt angle θ with the stable support structure as the fulcrum. The height of the rigid body is... The height The height is the maximum dimension of the rigid body in the direction perpendicular to the plane of the back of the electronic device. The following condition must be met: the center of gravity of the electronic device at the preset target tilt angle θ, as projected onto the placement plane, is always located within the support area between the bottom edge of the electronic device and the outermost edge of the stable support structure of the rigid body.

2. The edge-stabilized support base for an electronic device according to claim 1, characterized in that: The target tilt angle θ of the electronic device is an acute angle, and the height of the rigid body is... The following steady-state support inequalities must be satisfied: , In the formula: This is the maximum dimension of the rigid body in the direction perpendicular to the plane on the back of the electronic device; The width of the target electronic device perpendicular to the mounting extension direction; The thickness of the target electronic device; The preset target tilt angle; The chamfer radius is the end radius of the rigid body, where the end is the supporting end of the rigid body near the placement plane; To ensure stable redundancy, the configuration is set to compensate for manufacturing tolerances and environmental interference, and the value satisfies the following conditions. .

3. The edge-stabilized support base for an electronic device according to claim 1, characterized in that: The rigid body has a cross-sectional outline perpendicular to its length direction. The stable support structure is a geometric structure with trapezoidal stable characteristics. These trapezoidal stable characteristics mean that the geometric structure has support points or support edges that contact the placement plane. The outer outline of the geometric structure extends from the side closest to the electronic device towards the direction away from the electronic device, forming at least one support point or at least one support edge that contacts the placement plane. The support point or support edge, in a direction perpendicular to the back plane of the electronic device, is located on the side of the back plane of the electronic device facing away from the screen. This expands the support area between the bottom edge of the electronic device and the support point or support edge, ensuring that the center of gravity projection always falls within the support area when the electronic device is tilted, thus achieving anti-tipping stable support. The geometric structure can be any one or a combination of rectangles, triangles, trapezoids, parallelograms, multi-level outlines, continuous outlines with rounded corners, and arc outlines.

4. The edge-stabilized support base for an electronic device according to any one of claims 1-3, characterized in that: The fixing part is an adhesive layer. The rigid body has an inwardly recessed mounting groove on the side facing the electronic device. The adhesive layer fills the mounting groove. The thickness of the adhesive layer is greater than the depth of the mounting groove to ensure that, in the connected state, a preset force gap is maintained between the edge of the rigid body and the surface of the electronic device, thereby allowing the fixing part to undergo elastic deformation to absorb external dynamic loads.

5. The edge-stabilized support base for an electronic device according to any one of claims 1-3, characterized in that: The fixing part is a fixing plate adapted to the shape of the magnetic attraction area on the back of the electronic device or the protective case of the electronic device. The rigid body has an inwardly recessed mounting groove on the side facing the back plane of the electronic device. The fixing plate is detachably connected to the rigid body through the mounting groove. The fixing plate has a magnetic attraction structure inside. The magnetic attraction working surface of the magnetic attraction structure faces the back plane of the electronic device and is used to magnetically fix it to the electronic device or the protective case of the electronic device.

6. The edge-stabilized support base for an electronic device according to any one of claims 1-3, characterized in that: The fixing part is a magnetic fixing structure, including a first magnetic module and a second magnetic module; the first magnetic module is disposed in the rigid body, and the second magnetic module is disposed on the electronic device or its protective shell. The second magnetic module is a structure embedded in the electronic device / its protective shell, or a structure fixed to the surface of the electronic device / its protective shell by adhesive connection; the rigid body is fixedly connected to the back edge of the electronic device or its protective shell by mutual attraction between the first magnetic module and the second magnetic module.

7. The edge-stabilized support base for an electronic device according to any one of claims 1-6, characterized in that: The rigid body is provided with at least one external load interface, which is selected from at least one of the following: through hole, blind hole, slot, protrusion, or magnetic attachment. One end of the rigid body along its length is defined as the origin of the coordinate system, and the position of the external load interface along that length is... The following zoning distribution pattern is met: End anchoring zone ( or ) and / or the central anti-roll zone (0.23L≤ ≤0.77L); the vertical height of the geometric center of the external load interface from the bottom surface of the adhesive layer is defined as . , satisfy: Where L is the total length of the rigid body along its length direction, and is the distance from the origin of the coordinate system to the geometric center of the external load interface along its length direction.

8. The edge-stabilized support base for an electronic device according to claim 7, characterized in that: When the external load interfaces are located in the central anti-tipping zone of the rigid body and there are at least two of them, in order to ensure the lateral support stability when external rigid components are connected, the overall distribution span of the external load interface group is [not specified]. satisfy: Where L is the total length of the rigid body along its length direction. Defined as the distance between the geometric center of the leftmost external load interface and the geometric center of the rightmost external load interface.

9. The edge-stabilized support base for an electronic device according to claim 1, characterized in that: The rigid body includes at least one functional housing, which is configured as at least one of the following: a stylus storage module, a power bank module, a magnetic module, a light module, a heat dissipation module, a display module, a digital expansion module, a data exchange module, an interface expansion module, or a physical support component.

10. The edge-stabilized support base for an electronic device according to claim 9, characterized in that: The functional housing is detachable. After the functional housing is removed, the external load interface on the rigid body can still be used normally without affecting its load-bearing function.

11. The edge-stabilized support base for an electronic device according to claim 7, characterized in that: The external load interface can be connected to a connecting component and a functional load carried by the connecting component; wherein the functional load is selected from a lanyard component, a bracket component, a photography component, and at least one extension accessory that is laid out according to the partition distribution pattern of the external load interface.

12. A geometric design method for a steady-state support base at the edge of an electronic device, characterized in that, The edge-stabilized support base of the electronic device is the base as described in any one of claims 1 to 3, and the method includes the following steps: obtaining the width of the target electronic device perpendicular to the mounting extension direction. and the thickness of the target electronic device Set the preset target tilt angle. and stable redundancy According to the formula The minimum physical height threshold of the base is calculated, and the cross-sectional profile of the rigid body is constructed accordingly. The outer profile of the cross-sectional profile has a geometric structure that conforms to the trapezoidal steady-state characteristics described in claim 3.

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