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Method and device for determining grounding performance of shielding case, equipment and storage medium

A determination method and technology for shielding cans, applied in measurement devices, design optimization/simulation, instruments, etc., can solve the problems of long development cycle of shielding cans, inability to evaluate the grounding condition of shielding cans, etc., and achieve the effect of shortening the design and development cycle

Pending Publication Date: 2020-11-27
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology

[0004] However, when using the above-mentioned evaluation of the grounding performance of the shielding case, it is impossible to conduct a complete evaluation of the grounding conditions of different parts on the shielding case, which is not conducive to the subsequent improvement of the design of the shielding case, resulting in a longer design and development cycle of the shielding case

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  • Method and device for determining grounding performance of shielding case, equipment and storage medium
  • Method and device for determining grounding performance of shielding case, equipment and storage medium

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0031] The "plurality" mentioned herein means two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character " / " generally indicates that the contextual objects are an "or" relationship.

[0032] Please refer to figure 1 , which shows a flow chart of a method for determining the grounding performance of a shielding case provided by an exemplary embodiment of the present application. The method includes:

[0033] Step 101, determine sampling points on the shielding cover, and obtain material characteristic parameters at each sampli...

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Abstract

The embodiment of the invention discloses a method and device for determining the grounding performance of a shielding case, equipment and a storage medium, and belongs to the technical field of terminals. The method comprises the following steps: determining sampling points on the shielding case, and acquiring material characteristic parameters of each sampling point; calculating the distributedimpedance of each sampling point through a preset distributed impedance formula according to the material characteristic parameters; constructing a distributed impedance matrix corresponding to the shielding case according to the distributed impedance of each sampling point; and determining the grounding performance of the shielding case according to the distributed impedance matrix. By adopting the method provided by the embodiment of the invention, the complete evaluation of the grounding conditions of different parts on the shielding case can be realized, the subsequent improved design of the shielding case is facilitated, and the design and research and development period of the shielding case is shortened.

Description

technical field [0001] The embodiments of the present application relate to the field of terminal technologies, and in particular, to a method, device, device, and storage medium for determining the grounding performance of a shield. Background technique [0002] With the high-speed development of electronic products, the requirements for Electro Magnetic Compatibility (EMC) of printed circuit boards (Printed Circuit Board, PCB) are getting higher and higher. In PCB design, the grounding of the terminal shield is a complex issue, and good grounding plays a role in protecting the components inside the shield and shielding external electromagnetic interference. [0003] In the related art, an experiment is usually used to evaluate the grounding performance of the shielding case. For example, measure the DC resistance to judge the grounding performance of the shielding cover, or test the radiation sensitivity of the terminal to judge whether the grounding performance of the sh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01R31/00G06F119/14
CPCG01R31/00
Inventor 刘嘉男
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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