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Direct radiation type electrodynamic loudspeaker system

An electro-dynamic loudspeaker and loudspeaker technology, applied in the field of loudspeaker systems, can solve problems such as lack of technical solutions, and achieve the effects of simplified loudspeaker system, wide application range and simplified circuit system

Inactive Publication Date: 2017-08-18
安徽井利电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a lack of technical solutions for how to provide a direct-radiating dynamic speaker system with simple structure, higher circuit safety, and a more simplified speaker system.

Method used

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  • Direct radiation type electrodynamic loudspeaker system
  • Direct radiation type electrodynamic loudspeaker system
  • Direct radiation type electrodynamic loudspeaker system

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] like figure 1 A direct radiation type dynamic speaker system is shown, including a speaker, including a speaker circuit and a protection circuit, and the speaker circuit includes a power output stage, a low-pass filter, a DC detector, an overcurrent detector, a start-up delay control circuit, a drive and Protection relay, the power output ...

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Abstract

The invention relates to technical field of loudspeaker systems, and in particular relates to a direct radiation type electrodynamic loudspeaker system comprising a loudspeaker circuit and a protection circuit. A low-pass filter is arranged to reduce gain in frequency which may cause vibration, a power electric signal reaches a driver via a direct current detector; the driver after being protected by a protection relay transmits a signal to the loudspeaker; the protection relay is also connected with a power output stage for protecting the power output stage; a filter detector is arranged between the power output stage and the driver for preventing current from being overlarge and thus burning an electric appliance; therefore, security performance of the circuit is higher, and the circuit system is also simplified; sensitivity of the protection circuit is decided by R1, R2 and R3, the sensitivity is adjustable, the operation is more convenient, and the application range is wider. The system provided by the invention is simple in structure, higher in circuit security, simplified in structure, wider in application range, and stronger in creativity.

Description

technical field [0001] The invention relates to the technical field of loudspeaker systems, in particular to a direct radiation electric loudspeaker system. Background technique [0002] Electric speakers are the most widely used, and they are divided into three types: paper cone, horn and dome. When the voice coil in the magnetic field has an audio current passing through it, a magnetic field that changes with the audio current is generated. This magnetic field interacts with the magnetic field of the permanent magnet to make the voice coil vibrate along the axial direction. Due to the simple structure of the speaker and the full bass , soft sound quality, wide frequency band, but low efficiency. [0003] According to Faraday's law, when a current-carrying conductor passes through a magnetic field, it will receive an electromotive force. Its direction conforms to Fleming's left-hand rule. The force is perpendicular to the current and the direction of the magnetic field. P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 张岚曹炯黄金
Owner 安徽井利电子有限公司
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