Frequency-modulation advertisement transmitter protective cover

Abstract

The invention discloses a frequency-modulation advertisement transmitter protective cover. The protective cover comprises a shell, a fixed plate, radiating fans and an advertisement transmitter; support legs are arranged at the bottom of the shell; two sliding chutes are arranged at the bottom end in the shell, and the fixed plate is arranged on the sliding chutes through sliding blocks; a tensilehandle is arranged on the front of the fixed plate through a mounting part, a placing slot is formed on the upper surface of the fixed plate, and an advertisement transmitter is arranged in the placing slot; and the radiating fans are arranged on the side walls of the shell at the location of the advertisement transmitter. The frequency-modulation advertisement transmitter protective cover disclosed by the invention is composed of the shell, the fixed plate, the radiating fans and the advertisement transmitters and a series structures, and is more convenient for use in comparison with the traditional frequency-modulation advertisement transmitter protective cover; the advertisement transmitter can be quickly mounted and taken out through the cooperation of the sliding chutes and the sliding blocks; a damping spring can effectively lower or reduce the damage on the advertisement transmitter when the protective cover is in collision through the own buffering performance, and the frequency-modulation advertisement transmitter protective cover disclosed by the invention is worthy of popularizing and using.

Description

technical field [0001] The invention relates to the field of electronic equipment, in particular to a protective cover for an FM advertising transmitter. Background technique [0002] Generally speaking, the FM transmitter is the abbreviation of the FM radio transmitter, which is mainly used to wirelessly transmit the voice and music programs of the FM radio station. Make the frequency of the high-frequency carrier change with the audio signal, and then amplify and excite the generated high-frequency signal, power amplifier and a series of impedance matching, so that the signal is output to the antenna and sent out, and the high-frequency signal is generated effectively Frequency synthesis, PLL, etc., the frequency range of commercial FM broadcasting in my country is 88-108MHZ, 76-87MHZ in campuses, and 70-90MHZ in western countries. The corresponding protective cover is installed on the machine, which not only protects the FM radio transmitter, but also prevents non-staff fro...

AI Technical Summary

Problems solved by technology

[0003] But the FM radio transmitter protective cover of prior art is comparatively lacking, and relatively single, traditional FM radio transmitter basically all is completely exposed to the outside world when operating and using, although the use of the staff is convenient like this, but the exposed FM radio The broadcast transmitter is vulnerable to external collisions, which reduces the service life of the FM broadcast transmitter. At the same time, long-term exposed use will easily lead to a large amount of dust and impurities inside, which will increase the aging time of the electronic components inside the FM broadcast transmitter. , reducing the practicality of

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