Waterproof cover for car horn

Abstract

The invention discloses a waterproof cover for a car horn which can prevent water from entering the cavity of the horn shell and at the same time facilitate sound transmission. The water bar, the section of the water retaining bar is V-shaped or figure eight, and the opening is arranged away from the sound outlet of the horn. In the above solution, the water retaining strip effectively prevents water from entering the speaker housing, and the V-shaped or figure-eight shape not only does not hinder the transmission of sound, but also diverges the sound and improves the pitch of the sound.

Description

technical field [0001] The invention relates to the technical field of automobile parts, in particular to a waterproof cover for automobile horns. Background technique [0002] The volute-type car horn is generally installed at the bottom of the car. When the car is in rainy weather or there is a lot of water on the road, the running of the tires causes the water, mud and impurities on the road to splash around, which is easy to get out of the volute horn. The sound leakage channel enters the inner sound channel of the speaker. In the light of the light, the volute-shaped resonance cavity of the electronic speaker will enter the water or block, which will affect the normal operation of the speaker. [0003] The patent with publication number CN204681582 "Volute-type car horn with waterproof function" discloses: "It includes a double-layer grille type cover plate, and the rectangular sound outlet of the speaker tube is provided with an edge convex body, and the double-layer g...

AI Technical Summary

Problems solved by technology

[0002] The volute car horn is generally installed at the bottom of the car. When the car is in heavy rain or there is a lot of water on the road, the running of the tires will cause the water, mud and impurities on the road to splash everywhere, and it is easy to come from the outside of the volute horn. The sound leakage channel enters the inner sound channel of the speaker. If it is mild, it will cause water to enter or block the volute-shaped resonance cavity of the electronic speaker, which will affect the normal operation of the speaker. If it is serious, the accumulated water entering the resonance cavity will cause a short circuit in the internal circuit.

[0003] Publication No. CN204681582 patent "volute car horn with waterproof function" discloses: "comprising a double-layer grille type cover plate, a rectangular sound outlet of the loudspeaker is provided with a protruding body along the edge, and the double-layer grille type The cover plate is composed of an outer grid plate, an inner grid plate, a limit block and a limit convex body. There are three sealing connection surfaces and an opening surface between the outer grid plate and the inner grid plate. The outer grid plate The grille ribs of the grille and the grille ribs of the inner grille are arranged alternately, the shape of the outer grille and the inner grille is the same as the shape of the rectangular sound outlet of the loudspeaker, ... the double-layer grille cover The grille ribs of the outer grille plate and the grille ribs of the inner grille plate on the board are interlaced, which can effectively prevent rainwater, mud and impurities from immersing into the inner sound channel of the horn from the exposed sound channel opening of the volute speaker, but Since the inner and outer grilles are flat, such as figure 1 As shown, this will inevitably hinder the transmission of sound,

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