Low-frequency broadband high-power electrodynamic transducer

A transducer and high-power technology, applied in the direction of sensors, electrical components, etc., can solve the problems of low transmission response and low transmission power

Active Publication Date: 2020-01-21
HAIYING ENTERPRISE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-frequency broadband high-power electric transducer to solve the problems of low emission response and small emission power in the low-frequency region of the existing electric transducer

Method used

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  • Low-frequency broadband high-power electrodynamic transducer
  • Low-frequency broadband high-power electrodynamic transducer
  • Low-frequency broadband high-power electrodynamic transducer

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Embodiment Construction

[0021] A low-frequency broadband high-power electrodynamic transducer proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0022] The invention provides a low-frequency broadband high-power electrodynamic transducer, such as figure 1 As shown, it includes a casing 1, a reinforced magnetic circuit mechanism 2, a coil frame 3 and a vibration mechanism 5; the reinforced magnetic circuit mechanism 2 is located at the bottom of the casing 1 and is compressed by a compression nut 16, and the reinforced magnetic circuit mechanism 2 is used to generate a reinforced ma...

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Abstract

The invention discloses a low-frequency broadband high-power electrodynamic transducer, and belongs to the technical field of electrodynamic transducers. The low-frequency broadband high-power electrodynamic transducer comprises a shell, a reinforced magnetic circuit mechanism, a coil rack and a vibration mechanism; the reinforced magnetic circuit mechanism comprises an electrical pure iron core,axial magnetizing magnetic steel, radial magnetizing magnetic steel and a soft iron ring; the magnetic lines of force passing through the air gap are changed into two groups of magnetic lines of forcecontaining the radial magnetizing magnetic steel from the magnetic lines of force generated by the single axial magnetizing magnetic steel. The magnetic induction intensity in the air gap is enhanced, the radiation surface is ensured to be subjected to greater excitation force under the condition of the same emission current, and the low-frequency emission response of the transducer is further improved. The soft iron ring is additionally arranged on the inner wall of the radial magnetizing magnetic steel, so that the uniformity of a magnetic field in an air gap is ensured, the linear intervalof the transducer is further improved, the linearity of a radiation film under the condition of large amplitude at low frequency is ensured, and the broadband effect of the transducer is improved.

Description

technical field [0001] The invention relates to the technical field of electric transducers, in particular to a low-frequency broadband high-power electric transducer. Background technique [0002] The electrodynamic transducer is a common underwater low-frequency broadband transmitting transducer. The principle of the electric transducer is the same as that of the loudspeaker in the air. It is mainly composed of two parts: the magnetic circuit structure part that generates the magnetic field; the vibration system composed of the radiation diaphragm, bracket and coil. Electric transducers generally work in the low-frequency region, and the stroke of the moving coil is relatively large. In order to reduce nonlinear distortion, a large uniform area of ​​air-gap magnetic flux density is required; the volume displacement of low-frequency transducers is large, and it is hoped to provide a large According to Ampere's law F=BiL, when the current and coil length are constant, incre...

Claims

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Application Information

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IPC IPC(8): H04R9/02H04R9/04
CPCH04R9/025H04R9/027H04R9/045
Inventor 刘汉文杨翠虹李勇森卞桦锌陈蔚
Owner HAIYING ENTERPRISE GROUP
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