Electromagnetic radiation protection method, protection material and preparation method for automobile interior space

Abstract

The invention discloses a method for protecting electromagnetic radiation in an automobile interior space, a protective material and a preparation method thereof. The method for protecting electromagnetic radiation in an automobile interior space comprises the following steps: preparing an automobile electromagnetic radiation protection material; The electromagnetic radiation source is the projection source, and the electromagnetic wave propagation direction emitted by each electromagnetic radiation source is the projection direction, and the local three-dimensional space where the torso of the driver and passengers in the vehicle is located is the target to set the protection projection area; in the projection of each projection source Between the direction and the protection projection area, one or more automobile electromagnetic radiation protection materials are set; the present invention makes it form multiple protection projection areas in the local space of the vehicle through the reasonable setting of the electromagnetic radiation protection material, and realizes the specific protection of the vehicle interior. Absorption and shielding of electromagnetic radiation in a specific local space area of ​​0.9MHz‑1.8GHz frequency band, to meet the requirements of electromagnetic radiation protection for occupants inside the car without affecting normal communication.

Description

technical field [0001] The invention relates to the technical field of electromagnetic protection and materials, in particular to a method for protecting electromagnetic radiation in an automobile interior space, a protective material and a preparation method thereof. Background technique [0002] With the electrification and intelligence of automobiles, more and more electronic equipment such as motors, batteries, electronic controls, electrical appliances, and communications are used in automobiles. The occupants of the automobile are exposed to the electromagnetic environment and will be emitted by various interference sources in the automobile. Influenced by the radiation of electromagnetic waves, its personal safety is threatened to a certain extent, and in electric vehicles with more electronic and electrical equipment, this hazard is particularly serious. [0003] With the wide application of electronic and electrical equipment in various vehicles, especially electric...

AI Technical Summary

Problems solved by technology

[0007] However, the composite wave-absorbing shielding material provided by this patented technology has a total thickness of less than 1mm, which is only suitable for electromagnetic wave absorption and electromagnetic interference suppression in high-frequency and intermediate-frequency bands, and cannot effectively absorb electromagnetic radiation from 0.9MHz to 1.8GHz. and shielding, especially that it cannot provide differentiated protection for specific spatial areas according to the needs of occupants in the vehicle

Since the occupants in the car (sitting in different positions) are exposed to different radiation frequencies and intensities, the protection strengths they need to take are also different; at the same time, occupants often need to use mobile smart phones, wireless earphones ( Bluetooth) and other wireless devices, if indiscriminate electromagnetic shielding is performed on the entire car interior space, it will have a serious impact on the wireless communication signal between 820Mhz-2.4GHz, making the above devices unusable, so it is necessary to protect the car interior space Carry out differentiated protection to protect the safety of the occupants in the car without affecting the normal wireless communication

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