A method for realizing self-adjustment of support height of a mainboard
By adding support pillars and filling them with non-Newtonian fluid in the area of maximum stress on the motherboard, and using pistons to adjust the support height, the deformation problem of ATX motherboards under vibration and impact was solved, achieving adaptive support of the motherboard under strong impact environments and improving reliability.
Patent Information
- Application Number
- CN202210953481.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-10
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2042-08-10
AI Technical Summary
The ATX motherboard suffers from severe modal deformation during vibration and impact, resulting in excessive stress on the chip solder pads, which affects reliability. Furthermore, the limited number of existing mounting holes cannot effectively solve this problem.
Add support pillars to the area of the motherboard with the greatest stress, and fill the support pillars with non-Newtonian fluid. Use the displacement of the piston in the non-Newtonian fluid to adjust the support height, instantly pull or support the area with the greatest stress, and prevent deformation.
By autonomously adjusting the motherboard support height and utilizing the viscosity changes of non-Newtonian fluids, the motherboard is prevented from undergoing large deformations under strong impacts, thereby improving its reliability and stability.
Smart Images

Figure CN115357100B_ABST
Abstract
Description
Technical Field
[0001] This invention discloses a method relating to the field of ruggedized computer technology, specifically a method for autonomously adjusting the support height of a motherboard. Background Technology
[0002] Rack-mounted computers or servers often use ATX motherboards, characterized by their large size, numerous chips, and complex associated structures. The ATX design standard has fixed the locations of mounting holes, and due to chip layout and PCB design constraints, it's generally impossible to add more mounting holes. Inconsistent support pillar heights caused by chassis manufacturing precision and internal stresses generated during motherboard manufacturing can lead to deformation issues in normal environments. Furthermore, large ATX motherboards experience more severe modal deformation during vibration and impact, with overall deformation sometimes exhibiting a wavy pattern. This can cause excessive stress on chip solder pads, affecting or even severing internal PCB traces, significantly reducing motherboard reliability. Summary of the Invention
[0003] This invention addresses the problems of existing technologies by providing a method for autonomously adjusting the support height of the motherboard. It is characterized by its versatility and ease of implementation, and has broad application prospects.
[0004] The specific solution proposed in this invention is as follows:
[0005] This invention provides a method for autonomously adjusting the support height of a motherboard. It involves performing transient analysis of the motherboard's mechanical properties under impact conditions, extracting the motherboard's deformation, and identifying the area of maximum stress on the motherboard.
[0006] Based on the area of highest stress on the motherboard, motherboard support pillars are added. These pillars are filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the other end of the piston has a limiting component.
[0007] When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
[0008] Furthermore, the transient analysis of the motherboard's simulated mechanics under impact conditions in the method for autonomously adjusting the motherboard's support height includes:
[0009] Based on the area of maximum stress on the motherboard, determine the maximum stress point on the motherboard.
[0010] Furthermore, in the method for autonomously adjusting the motherboard support height, the addition of motherboard support pillars based on the area of greatest stress on the motherboard includes:
[0011] Based on the maximum stress point of the motherboard, add a motherboard support pillar at the maximum stress point.
[0012] Furthermore, in the method for autonomously adjusting the motherboard support height, the motherboard support column is a cylinder comprising a metal casing.
[0013] Furthermore, in the method for autonomously adjusting the motherboard support height, the motherboard support column is fixed to the motherboard by adhesive or threaded fastening.
[0014] This invention also provides a motherboard that enables autonomous adjustment of support height. Transient analysis of the motherboard's mechanical properties under impact conditions is performed to extract the motherboard's deformation and identify the area of maximum stress.
[0015] Based on the area of highest stress on the motherboard, motherboard support pillars are added. These pillars are filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the other end of the piston has a limiting component.
[0016] When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
[0017] The transient analysis of the motherboard under impact conditions, as described in the further described motherboard for realizing autonomous adjustment of support height, includes:
[0018] Based on the area of maximum stress on the motherboard, determine the maximum stress point on the motherboard.
[0019] Further, in the motherboard that enables autonomous height adjustment, the addition of motherboard support pillars based on the area of greatest stress on the motherboard includes:
[0020] Based on the maximum stress point of the motherboard, add a motherboard support pillar at the maximum stress point.
[0021] Furthermore, in the motherboard described in the embodiment of autonomous height adjustment, the motherboard support column is a cylinder and includes a metal casing.
[0022] In a further embodiment of a motherboard that enables autonomous adjustment of support height, the motherboard support column is fixed to the motherboard by adhesive or threaded fastening.
[0023] The advantages of this invention are:
[0024] This invention provides a method for autonomously adjusting the motherboard support height. It utilizes a non-Newtonian fluid support that perfectly conforms to the irregular micro-deformation of the motherboard, creating an adaptive state. Under severe impact, the non-Newtonian fluid support can instantly change its viscosity, thereby preventing large upward or downward deformation of the motherboard by pulling or supporting it, significantly improving motherboard reliability. Attached Figure Description
[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0026] Figure 1 This is a cross-sectional schematic diagram of the piston-equipped, limitable non-Newtonian fluid support column in this invention.
[0027] Figure 2 This is a schematic diagram of motherboard deformation under impact conditions.
[0028] Figure 3 This is a schematic diagram of the stress cloud diagram of the motherboard under impact conditions.
[0029] Figure reference numerals: Piston bolt hole 1, Piston 2, Support column cavity 3, Housing 4, Housing screw hole 5. Detailed Implementation
[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.
[0031] This invention provides a method for autonomously adjusting the support height of a motherboard. It involves performing transient analysis of the motherboard's mechanical properties under impact conditions, extracting the motherboard's deformation, and identifying the area of maximum stress on the motherboard.
[0032] Based on the area of highest stress on the motherboard, motherboard support pillars are added. These pillars are filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the other end of the piston has a limiting component.
[0033] When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
[0034] The method of this invention can allow the motherboard support height to be freely varied in normal environments and to be varied according to needs in high-impact environments. Specifically, it utilizes the special property of non-Newtonian fluids that "strengthen when subjected to strong forces and weaken when subjected to weak forces," meaning that its viscosity does not satisfy Newton's law of viscosity, and uses it as a filling material inside the motherboard support pillar. In normal environments, the support height can be adaptively adjusted according to the deformation of the motherboard itself, while in high-impact environments, it can fully absorb vibrations, prevent the motherboard from undergoing severe modal deformation, and keep the motherboard in a stable shape.
[0035] In specific applications, in some embodiments of the method of the present invention, transient analysis of the simulated mechanics under impact conditions is performed on the motherboard to extract the deformation of the motherboard and obtain the area of maximum stress on the motherboard.
[0036] Furthermore, the transient analysis of the motherboard's simulated mechanics under impact conditions in the method for autonomously adjusting the motherboard support height includes:
[0037] Based on the area of maximum stress on the motherboard, determine the maximum stress point on the motherboard.
[0038] Furthermore, to better support the motherboard and achieve adaptive height adjustment, the method for autonomously adjusting the motherboard support height includes adding motherboard support pillars based on the area of greatest stress on the motherboard, comprising:
[0039] Based on the maximum stress point of the motherboard, a motherboard support pillar is added at that point. The motherboard support pillar is filled with a non-Newtonian fluid, with one end closed and connected to the motherboard. One end of the piston 2 has a limiting element.
[0040] When the motherboard is subjected to a strong impact, the piston 2 moves within a non-Newtonian fluid to adjust the height of the motherboard support column, instantly pulling or supporting the area of the motherboard with the greatest stress, thus preventing the motherboard from deforming.
[0041] Furthermore, the motherboard support column is screw-fixable, and the support column as a whole is a metal shell 4, including a support column cavity 3, which is filled with a non-Newtonian fluid. One end is a piston 2, which is limited by a bolt connected to the top piston bolt hole 1. The other end is closed and connected to the motherboard by a threaded connection through the shell screw hole 5. The support column can adapt to the deformation of the motherboard itself in a static environment. That is, when the motherboard is laid flat, its lowest vertical point is in close contact with the metal shell of the support column, and the piston can be pulled upward from any other position to form a support combination that completely conforms to the deformation shape of the motherboard itself.
[0042] Alternatively, the motherboard support pillar can be freely and adhesively attached to the motherboard. The motherboard support pillar is a cylinder filled with a non-Newtonian fluid. When placed below the max position point, in the event of a strong impact, regardless of whether the deformation is upward or downward, this type of support pillar can instantly change the viscosity of the internal non-Newtonian fluid, supporting the motherboard upward or pulling it downward, thereby resisting the strong impact, protecting the motherboard, and improving reliability.
[0043] This invention also provides a motherboard that enables autonomous adjustment of support height. Transient analysis of the motherboard's mechanical properties under impact conditions is performed to extract the motherboard's deformation and identify the area of maximum stress.
[0044] Based on the area of highest stress on the motherboard, motherboard support pillars are added. These pillars are filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the other end of the piston has a limiting component.
[0045] When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
[0046] The above-described improvements to the motherboard and motherboard support pillars are based on the same concept as the method embodiments of the present invention, and the specific details can be found in the descriptions in the method embodiments of the present invention, and will not be repeated here.
[0047] Similarly, the motherboard of this invention utilizes a non-Newtonian fluid support that can perfectly conform to the irregular micro-deformation of the motherboard itself, forming an adaptive state. Under strong impact conditions, the non-Newtonian fluid support can instantly change its viscosity, thereby preventing the motherboard from undergoing large upward or downward deformation by pulling or supporting it, greatly improving the reliability of the motherboard.
[0048] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.
Claims
1. A method for autonomously adjusting the support height of the motherboard, characterized in that: Transient mechanical simulation analysis of the motherboard under impact conditions is performed, including: extracting the motherboard deformation and identifying the region of maximum stress; and determining the maximum stress point based on the identified region of maximum stress. Based on the area of highest stress on the motherboard, motherboard support pillars are added. This includes adding a motherboard support at the maximum stress point. The motherboard support pillar is cylindrical and includes a metal casing. The motherboard support pillar is fixed to the motherboard using either adhesive or threaded fasteners. The motherboard support pillar is filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the piston end has a limiting component. When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
2. A motherboard that enables autonomous adjustment of support height, characterized in that: Transient mechanical simulation analysis of the motherboard under impact conditions is performed, including: extracting the motherboard deformation and identifying the region of maximum stress; and determining the maximum stress point based on the identified region of maximum stress. Based on the area of highest stress on the motherboard, motherboard support pillars are added. This includes adding a motherboard support at the maximum stress point. The motherboard support pillar is cylindrical and includes a metal casing. The motherboard support pillar is fixed to the motherboard using either adhesive or threaded fasteners. The motherboard support pillar is filled with a non-Newtonian fluid, with one end sealed and connected to the motherboard, and the piston end has a limiting component. When the motherboard is subjected to a strong impact, the motherboard support pillars are used to adjust the height of the motherboard support by moving the piston in a non-Newtonian fluid. This instantly pulls or supports the area of the motherboard with the greatest stress, preventing the motherboard from deforming.
Citation Information
Patent Citations
Shockproof structure of integrated cooker
CN212511338U
Simulation experiment development board based on FPGA
CN213152662U