Ultrathin power-driven woofer

Abstract

The invention relates to an ultrathin power-driven woofer. The main technical key points of the woofer are as follows: a sound cone bottom is fixedly connected with a printed circuit board (PCB) in which an electronic wire harness is built; a lead wire is fixedly adhered to a conical cone; the tail end of the lead wire penetrates into a welding hole to be fixedly welded with the electronic wire harness in the PCB; the length of the lead wire in a woofer is more than the distance between a small hole and the welding hole, so that the lead wire in the woofer is of a bent shape; the conical cone comprises a first cone component and a second cone component; the first cone component is of an arced shape and the lowest section of the first cone component is a cylinder; the second cone component is elevated in sequence from inside to outside and adhered to the cylinder of the first cone component by glues; the highest point of the first cone component is connected with a voice coil skeleton; and a paper cone is provided with a height increasing block, and the height increasing block and the paper cone are integrated into a whole, thus increasing the height of the paper cone. The whole thickness of the woofer is not more than 20mm, and the woofer is good in tone quality.

Description

1. Technical field [0001] The invention belongs to the field of loudspeakers, and in particular relates to an ultra-thin electric woofer. 2. Background technology [0002] Ultra-thin TVs (such as LCD, plasma, LED, OLED TV, etc.) are deeply loved by consumers due to their thin thickness and small footprint, and have become the mainstream of the current TV consumer market. How to make TVs more and more Thinness has become the commanding height for various TV manufacturers to seize the market, which has led to more and more limitations in the acoustic design of ultra-thin TVs. The most restrictive problem is how to solve the bass problem of ultra-thin TV speaker systems. The production of bass is mainly driven by the sound cone to drive the axial mechanical movement to generate sufficient sound pressure. At present, the methods to solve the bass problem are all focused on the design of flat speakers, but the distance of axial movement in the design process of flat speakers is d...

AI Technical Summary

Problems solved by technology

According to the calculation, the minimum height of the speaker to produce the bass effect is 18mm. This calculation is based on the minimum value of the U iron, the thickness of the magnetic sheet, the height of the voice coil, and the vibration amplitude. However, if the volume of the speaker located behind or on the top of the flat-screen TV needs to be increased Increase the thickness of the frame or the space behind the TV. This increase will cause the total height of the flat-panel TV to increase to 30-50mm. For this reason, it is necessary to design a speaker in the TV frame, or build a separate speaker system. The thickness of the speaker will increase the thickness of the flat-panel TV, and it will be visible from the side or the back, affecting the overall aesthetics of the ultra-thin TV

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