A two-pole double-position electromagnetic switch

Abstract

The invention relates to the technical field of a magnetic switch and specifically discloses a bipolar double-station electromagnetic switch, comprising a shell and a blocking sheet, wherein an action rod and bar magnet are arranged in the shell; the upper end of the action rod rotationally penetrates an upper end cover of the shell; the upper end of the action rod is fixedly connected with the blocking sheet; the upper end face of the blocking sheet is equipped with a sealing cushion layer; the blocking sheet and the sealing cushion layer are equipped with corresponding opening and closing holes; the bar magnet is transversely and fixedly at the lower end of the action rod; the shell inner cavity at two sides of the action rod is equipped with magnetic coils; and the magnetic poles of the two magnetic coils are arranged corresponding to two poles of the bar magnet. The switch is reasonable in structure; a magnetic pole is switched through the magnetic coils; the bar magnet is driven to rotate, further the blocking sheet on the action rod is driven to rotate, and the positions of the opening and closing holes are changed, thereby blocking or opening a leakage hole on the loudspeaker; the integrated structure is compact; the action is flexible; the power consumption is low; and the call quality of a mobile phone can be effectively improved.

Description

Technical field [0001] The invention relates to the technical field of magnetic switches, in particular to a two-pole double-station electromagnetic switch. Background technique [0002] At present, there are some mobile phones on the market that have two speakers to produce a surround sound effect. This type of mobile phone usually replaces the earpiece with a speaker on one side. When a call is made, the power of the speaker is reduced by switching the circuit to reduce the volume to a suitable level. The degree of listening close to the ear. However, in order to make the voice not distorted, the effective frequency range of the general earpiece is the low frequency of 300-3400Hz, and the general speaker has serious distortion in this frequency range. Therefore, the speaker is used instead of the earpiece, and there is distortion during the call. For this reason, in some current technologies, a leakage hole is opened in the sound cavity of the speaker to improve the problem of...

AI Technical Summary

Problems solved by technology

However, in order not to distort the voice, the effective frequency range of the general earpiece is 300-3400Hz low frequency, and the general speaker has serious distortion in this frequency range, so the speaker is used instead of the earpiece, and there is distortion during the call

For this reason, in some current technologies, leakage holes are opened on the sound chamber of the speaker to improve the problem of low-frequency distortion, but this leads to the decline of high-frequency sound effect.

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