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Semi-anechoic chamber and its floor structure

A semi-anechoic chamber and floor technology, applied in the field of semi-anechoic chamber, can solve the problems of poor grounding effect and low frequency, achieve the best grounding effect and improve the test effect

Active Publication Date: 2022-05-13
李志宏 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the traditional semi-anechoic chamber 100 allows the current I1 to flow to the surrounding wall 102, and then flows to the ground GND through the wall 102, resulting in a poor grounding effect, which in turn affects the test of low frequency (such as 30MHz ~ 300MHz) characteristics

Method used

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  • Semi-anechoic chamber and its floor structure
  • Semi-anechoic chamber and its floor structure
  • Semi-anechoic chamber and its floor structure

Examples

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Embodiment Construction

[0020] image 3 Showing the floor structure 200 of the semi-anechoic chamber of the present invention, Figure 4 show image 3 Sectional view in AA' direction.

[0021] refer to image 3 and Figure 4 , the floor structure 200 includes a reflector 202 and a ground frame 206, the reflector 202 has two metal layers 2022 and 2026 and an insulating layer 2024, the insulating layer 2024 is between the two metal layers 2022 and 2026, the insulating layer 2024 has a through hole 204 , the metal layers 2022 and 2026 are connected through the through hole 204 so that the current I1 on the metal layer 2022 can flow to the metal layer 2026, the metal layers 2022 and 2026 can be but not limited to galvanized steel sheets, and the insulating layer 2024 can be but not limited to wood boards . The ground frame 206 is connected to the reflector 202, so that the current I1 on the reflector 202 flows to the ground GND. In this embodiment, the ground frame 206 is realized by a support frame...

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Abstract

A floor structure of a semi-anechoic chamber, comprising a reflector and a grounding frame, the reflector has a first metal layer, a second metal layer and an insulating layer, the insulating layer has a through hole so that the upper and lower layers of the insulating layer The first metal layer and the second metal layer on both sides can be electrically connected, and the ground structure is connected to the second metal layer so that the current on the first metal layer and the second metal layer can flow to the ground.

Description

technical field [0001] The present invention relates to a semi-anechoic chamber, in particular to a floor structure of the semi-anechoic chamber. Background technique [0002] Electronic devices may be disturbed by the surrounding electromagnetic waves and cannot work normally. In order to solve the problem of electromagnetic interference, electromagnetic compatibility (ElectroMagnetic Compatibility; EMC) testing is usually carried out before the product goes on the market. This test is usually carried out in a laboratory that meets the requirements , such as a semi-anechoic chamber. [0003] figure 1 It shows the top view of the traditional semi-anechoic chamber 100, which is a hexahedral space formed by the wall 102, the ceiling (not shown) and the floor, wherein the wall 102 and the ceiling have materials that absorb electromagnetic waves to prevent electromagnetic waves from being absorbed by the wall 102 or the reflection of the ceiling affects the test results. The f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00B32B21/14B32B15/18B32B21/04B32B15/04B32B3/24B32B33/00
CPCH05K9/0003B32B21/14B32B15/18B32B21/04B32B15/04B32B3/266B32B33/00B32B2307/206
Inventor 李志宏白景元林丁丙
Owner 李志宏