Electromagnetic braille display device

Abstract

The invention relates to the technical field of braille display, in particular to an electromagnetic braille display device. The device comprises a display area, a control area and a transmission area, the display area is provided with at least one row of braille display units, each braille display unit comprises six touch holes, the control area is provided with a page turning button and a switchbutton which are used for controlling switching of braille information on the display area, a motor is arranged in a motor chamber of the transmission area, and a transverse flow centrifugal impelleris arranged in a fan chamber of the transmission area; according to the invention, the display area with the touch holes is designed; a supercharging device is used for controlling the airflow of thelocal touch holes, an outward spraying air column is realized, when a user touches the position of the touch holes, the user can feel the protrusion formed by the air column to replace an original rigid protrusion, so that the situation that normal movement of the lifting structure is affected due to the fact that sweat stains and dust are poured into gaps is effectively avoided, and the device is more convenient to use and does not need much cleaning.

Description

technical field [0001] The invention relates to the technical field of Braille display, in particular to an electromagnetic Braille display device. Background technique [0002] Touch reading is fast and highly recognizable, and is the most important reading method for blind people. However, the special paper for traditional Braille books is expensive, the production process is complicated, and it takes a long time. Moreover, there are few Braille books published, a single variety, information lag, small amount of information, bulky, and inconvenient to carry. These factors make traditional Braille books far It cannot meet the reading needs of the blind. How to use modern technology to develop a barrier-free reading tool for the blind - a braille reader, has increasingly become a focus of social attention. [0003] Therefore, the invention with the application number CN201410632715.9 discloses a layered electromagnetic Braille display device and a Braille reader, which ado...

AI Technical Summary

Problems solved by technology

[0003] Therefore, the invention with the application number CN201410632715.9 discloses a layered electromagnetic braille display device and a braille reader, which adopts the working principle of electromagnetic induction and can display one or more lines of braille characters to meet the reading and learning needs of blind people. The significance to the society is huge. In addition to the electromagnetic braille display device, there are also pneumatic and memory alloy methods. The braille display needs to be displayed in a way that a bump pops up in a groove to facilitate the perception of the bump. However, because it is something that is often touched by hands, sweat and dust will inevitably adhere to the panel, especially for people whose hands are prone to sweating. Most of the products in the prior art are integrated, and the panel is not easy to disassemble and clean. When sweat and dust are adhered to the gap between the bumps and the grooves and gradually accumulate, some bumps may not be able to pop up, and it is difficult to clean them off, so it cannot meet the needs of users

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