CN209216368U - Braille point, braille block and the refreshable Braille reader of soft material driving - Google Patents
Braille point, braille block and the refreshable Braille reader of soft material driving Download PDFInfo
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- CN209216368U CN209216368U CN201821554092.8U CN201821554092U CN209216368U CN 209216368 U CN209216368 U CN 209216368U CN 201821554092 U CN201821554092 U CN 201821554092U CN 209216368 U CN209216368 U CN 209216368U
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- China
- Prior art keywords
- braille
- soft material
- drive membrane
- material drive
- sealing film
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Abstract
The utility model provides a kind of braille point of good, easy to use, response quickly soft material driving of tactile comfort level, it is made of silica gel ontology, soft material drive membrane, insulation pressure flow body, sealing film and the braille touch pad being installed on sealing film, the two sides of soft material drive membrane are provided with flexible electrode；Sealing film and soft material drive membrane are respectively arranged in the upper and lower end face of silica gel ontology, and are connected and seal with silica gel ontology；Silica gel ontology is provided with through-hole in the position for corresponding to soft material drive membrane flexible electrode, and through-hole uses up-small and down-big trapezium structure；Pressure flow body is filled in through-hole, and upper and lower ends are respectively acting on sealing film and soft material drive membrane；The flexible electrode of soft material drive membrane two sides is picked out respectively with line lead and column lead；Line lead is used to be connected with the positive and negative anodes of power supply with column lead.The utility model additionally provides a kind of braille block and wearable, the good refreshable Braille reader of comfort being mainly made of M × N number of braille lattice array.
Description
Technical field
The soft material for capableing of downlink or protrusion the utility model relates to a kind of braille touch pad drives braille point, with braille point group
At braille block and braille reader, belong to Braille reading technical field.
Background technique
The problems such as, reading difficulty big for blind person's reading requirement, a kind of refreshable electronic braille reader come into being.
It at dynamic Braille, rapidly reads the text importing in traditional paper book or electronic document greatly convenient for blind person
The text of amount.
The driving method of refreshable Braille reader is broadly divided into 6 kinds: piezoelectric type, memorial alloy formula, electromagnetic type, pneumatic
Formula, electro photoluminescence formula, Temperature Control Type.Currently, refreshable reading aid for blindmen is also in the experimental study stage mostly, small part is commercially available
Product be generally piezoelectric type and electromagnetic type.However, since Research Challenges are more, technology realizes that difficulty is big, researches and develops at high cost, former material
Expect at high cost and fabricate factors, the refreshable Braille reader of commercialization such as at high cost and suffer from extremely high price,
The price of one Braille lattice is probably 100~150 dollars, that is to say, that the price of the braille reader of 40 lattice is
4000~6000 dollars.The so expensive price of braille reader, seriously hinders its promotion and popularization, it is difficult to allow major part
Blind person disadvantaged group are benefited.Meanwhile the comfortably experience of conventional rigid driving method is poor.Therefore, at low cost, volume is developed
Refreshable Braille reader small, wearable, comfort level is good, corresponding speed is fast, noise is small, for realize blind person quickly, without barrier
It reads with hindering, improves the educational level of China blind person, improve the quality of life of the numerous blind person disadvantaged group of number, have great
Meaning.
Summary of the invention
A kind of the purpose of the utility model is to provide tactile comfort levels softwood good, at low cost, easy to use, response quickly
Expect the braille point of driving.
The braille point of soft material driving described in the utility model drives by silica gel ontology, to the soft material of electric field-sensitive
Film, insulation pressure flow body, sealing film and the braille touch pad composition being installed on sealing film, the two of the soft material drive membrane
Side is provided with flexible electrode；
The sealing film and soft material drive membrane are respectively arranged in the upper and lower end face of silica gel ontology, and with silica gel ontology
It is connected and seals；Silica gel ontology position of flexible electrode on corresponding to soft material drive membrane is provided with through-hole, and through-hole uses
Up-small and down-big trapezium structure；The pressure flow body is filled in through-hole, and upper and lower ends are respectively acting on sealing film and soft
Material drive membrane；The flexible electrode of soft material drive membrane two sides is picked out respectively with line lead and column lead；Line lead and column
Lead with the positive and negative anodes of power supply for being connected；
When flexible electrode is connected with the positive and negative anodes of power supply respectively by line lead, column lead, flexible electrode is loaded voltage,
The plane stress of soft material drive membrane reduces, and generates the deformation that area becomes larger, thickness is thinning, and sealing film is pushed away by pressure flow body
Dynamic soft material drive membrane protrusion, while sealing film and braille touch pad downlink flatten；After voltage is removed, soft material drive membrane
Plane stress increases, and pushes braille touch pad convex by pressure flow body.
Above-mentioned braille point, the pressure flow body are compressed airs or have a press liquid.
Above-mentioned braille point is connected as a body outer in silica gel ontology, soft material drive membrane, sealing film and braille touch pad
Surface covers one layer of insulation flexible film for playing safety protection function.
The utility model provides a kind of braille block of soft material driving simultaneously, it can be improved tactile comfort level, reduce
The cost of manufacture of refreshable Braille reader, and have many advantages, such as wearable, easy to use, response quickly.
The braille block of soft material driving described in the utility model, it is blind comprising being made of M row × N column braille point
Literary lattice array, M row switch and N number of column switch, form a character image；
It is drawn positioned at soft material drive membrane side with the same line lead of flexible electrode of a line, is located at soft material drive membrane
The flexible electrode of other side same row with same row lead draw, and each line lead, each column lead respectively with M row of braille block
Switch and the switch connection of N number of column, row switch and column switch are connected respectively to the positive and negative anodes of power supply.
Above-mentioned braille block, all braille points share a silica gel ontology, a soft material drive membrane, a sealing thin
Film.
The utility model, which additionally provides a kind of offer, can be improved tactile comfort level, low manufacture cost, wearable, using just
The refreshable Braille reader of prompt, response quickly soft material driving.
The refreshable Braille reader of soft material driving described in the utility model, the reader include the braille
Block, controller, controller and each row switch, column switch connection, to control the movement of each row switch, column switch, when the row of the i-th row
After the column switch of switch and jth column chooses closing by controller, voltage is loaded into the soft material of the i-th row, the braille point that jth arranges
In drive membrane, so that the braille touch pad downlink or protrusion of each braille point, realize the display of certain braille.
Above-mentioned refreshable Braille reader, it further includes the host computer with controller communication；Host computer is by text information
It being converted to blind text information and is transferred to controller, controller controls the movement of each row switch, column switch according to blind text information,
So that the braille touch pad downlink or protrusion of each braille point, realize the display of the braille word.Preferably, it further includes wireless transmission mould
Blind text information is transferred to controller by wireless transport module by block, host computer.
Above-mentioned refreshable Braille reader, it further includes the interactive module with controller communication, and controller is according to interaction
The sequence and speed that the signal control Braille of module output is shown.
The utility model has the beneficial effects that the soft material drive membrane belongs to current material, it is a kind of electric field-sensitive softwood
Material, can generate the change of stress and strain under electric field action.Soft material two sides at braille hole are provided with flexible electrode.It is soft
Property electrode be the prior art.
The flexible electrode of soft material drive membrane two sides is drawn by lead, and is switched respectively with the row, column of braille block
Connection.When applying the voltage in soft material drive membrane, soft material drive membrane can generate the change that area becomes larger, thickness is thinning
Shape, soft material drive membrane plane stress reduce, then sealing film pushes soft material drive membrane to make its convex by pressure flow body
Out, while the sealing film downlink of the other side flattens.After removing voltage, soft material restores, and makes sealing thin by pressure flow body
Film layer outwardly protrudes.Existing soft material drive membrane has silica gel thin film, acrylate film etc., and sealing film uses elastically deformable
Film, naturally it is also possible to use silica gel thin film, acrylate film.
Text information is converted to braille word by host computer, is transferred to controller by wireless transport module, controller according to
Braille word instruction controls the power on/off of respective flexible electrode in the soft material drive membrane of braille block, so that the braille of each braille point touches
Downlink or protrusion are padded, realizes the display of character.
The braille point of the utility model, braille block are with flexible materials such as soft material drive membrane, flexible electrode, silica gel ontologies
It is made, cylinder can be bent to and be worn on finger.The wireless transport module, control, interactive module, power supply etc. can integrate
For a component, the positions such as arm or palm are fixed on, interactive operation is convenient for.Compared with prior art, which uses
Soft material driving, tactile comfort and safety are good, and power demand is smaller, can dress it is easy to carry, can also as needed into
Row combination display multirow or multiple row braille, solve existing braille reader comfort is poor, power consumption is big, it is at high cost, be difficult to carry
The problem of.
Detailed description of the invention
Fig. 1 is the refreshable Braille reader schematic diagram that the soft material of the utility model drives.
Fig. 2 is that (braille point no applied voltage, soft material drive membrane is in flat for the structural schematic diagram of the braille point of the utility model
Face, sealing film are in protruding state).
Fig. 3 is that (braille point applies voltage, and soft material drive membrane is in convex for the structural schematic diagram of the braille point of the utility model
Out, sealing film is in flat state).
In figure:
1 is braille block；2 be host computer；3 be wireless transport module；4 be controller；5 be interactive module；6 be power supply mould
Block；
1-1 is braille point；1-2 is braille block row switch；1-3 is braille block column switch；1-1-1 is silica gel；1-1-2 is soft
Material drive membrane；1-1-3 is flexible electrode；1-1-4 is insulation pressure flow body；1-1-5 is sealing film；1-1-6 is braille touching
Pad.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, is described in further detail the utility model.It should be appreciated that specific embodiment described herein is used only for solving
The utility model is released, is not used to limit the utility model.
As shown in Figure 1, a kind of refreshable Braille reader of soft material driving includes braille block 1, host computer 2, wireless biography
Defeated module 3, controller 4, interactive module 5, power module 6.
The braille block 1 includes 1-1, M braille block row switch 1-2 of braille point and N number of braille in M N array arrangement
Block arranges switch 1-3, using matrix control method.The row switch 1-2 and column switch 1-3 of the braille block 1 are connected respectively to electricity
The positive and negative anodes in source, on off operating mode are controlled by controller 4.When the row switch of the i-th row and the column of jth column switch selected close
Afterwards, voltage is loaded on the braille point of the i-th row, jth column, and the plane stress of the soft material drive membrane at the braille point reduces,
The deformation that area becomes larger, thickness is thinning is generated, sealing film pushes soft material drive membrane protrusion by pressure flow body, seals simultaneously
Film and braille touch pad downlink flatten；After voltage is removed, the plane stress of the soft material drive membrane at the braille point increases, and leads to
Crossing pressure flow body pushes braille touch pad convex.The outer surface of all braille points is covered with insulation soft material, realizes safeguard protection.
Character to display is converted to corresponding braille control instruction by the host computer 2, passes through wireless transport module 3
It is sent to controller 4, row switch 1-2 is controlled by controller 4 and arranges the on off operating mode of switch 1-3, it is blind to control corresponding braille point
Display of the character on braille reader is realized in the convex and downward movement of literary touch pad.
The interactive module 5 may be microminiature control stick or microminiature button etc., generates signal and inputs to controller 4,
The sequence and speed that controller 4 is shown according to process control character.
The wireless transport module 3, controller 4, interactive module 5, power module 6 can integrate as a component, be fixed on
The positions such as arm or palm, convenient for interacting operation with finger.
As shown in Fig. 2, the braille point 1-1 is by silica gel ontology 1-1-1, soft material drive membrane 1-1-2, flexible electrode 1-1-
3, insulate pressure flow body 1-1-4, sealing film 1-1-5 and braille touch pad 1-1-3 composition.
All braille point 1-1 share one piece of silica gel ontology 1-1-1, silica gel ontology 1-1-1 can be used 3D printing or mold at
Type is disposed with M × N braille hole array on silica gel ontology 1-1-1.All braille point 1-1 share one piece of soft material drive membrane 1-
1-2, the two sides soft material drive membrane 1-1-2 at corresponding silica gel ontology 1-1-1 braille hole are provided with flexible electrode 1-1-3.Institute
State the flexible electrodes of the two sides soft material drive membrane 1-1-2 and drawn respectively with line lead and column lead, with a line line lead with
One row switch 1-2 is in parallel, and the column lead of same row is in parallel with a column switch 1-3.The soft material drive membrane 1-1-2 and
Sealing film 1-1-5 is located at the two sides of silica gel ontology 1-1-1, is connected and seals with silica gel ontology 1-1-1, the pressure flow
Body 1-1-4 is located in the braille hole of silica gel ontology 1-1-1, and both ends act on soft material drive membrane 1-1-2 and sealing film 1-
1-5.The soft material drive membrane 1-1-2 is a kind of electric field-sensitive soft material, when voltage is applied to the flexible electrode 1- of its two sides
When on 1-3, the plane stress of soft material drive membrane 1-1-2 reduces, and plane strain increases, and can generate output bit under external force
Shifting and power output.
The braille hole of the braille point 1-1 class trapezium structure up-small and down-big using diameter, as soft material drive membrane 1-1-2
Certain fluid volume variable quantity, irrespective fluid compression amount, then in sealing film 1- can be generated when generating certain displacement
Same fluid volume variable quantity, since the braille bore dia at sealing film 1-1-5 is small, sealing film are generated at 1-5
The displacement that 1-1-5 is generated is bigger, is conducive to provide clearer tactile.
As shown in Fig. 2, the flexible electrode no applied voltage of the two sides soft material drive membrane 1-1-2 in the braille point 1-1
When, since the plane stress of soft material drive membrane 1-1-2 is larger, soft material drive membrane 1-1-2 is in planar substantially, and this
When sealing film 1-1-5 protruded under the action of pressure flow body, at this time at soft material drive membrane 1-1-2 and sealing film 1-1-5
In a kind of equilibrium state for protruding sealing film 1-1-5.As shown in figure 3, as the soft material drive membrane 1- in braille point 1-1
When the flexible electrode of the two sides 1-2 applies voltage, since soft material drive membrane 1-1-2 subtracts in static pressure effect lower plane stress
It is small, under the action of pressure flow body 1-1-4, push soft material drive membrane 1-1-2 downwardly projecting, while making sealing film 1-1-5
Bigger descending displacement is generated, another equilibrium-like that sealing film 1-1-5 flattens, soft material drive membrane is protruded is now in
State.
The braille block is all made of soft material, can bend to cylinder and be worn on finger.
The refreshable reader of soft material driving includes braille block, host computer, wireless transport module, controller, interaction
Module, power module.The braille block is made of M × N number of braille lattice array, forms a character image.The braille
Point is by the silica gel ontology with braille hole, the soft material drive membrane with flexible electrode to electric field-sensitive, insulation pressure flow body, sealing
Film and the braille touch pad being installed on sealing film form, and all braille points can share one piece of silica gel ontology, soft material driving
The braille hole of film and sealing film, silica gel ontology uses up-small and down-big trapezium structure, to provide clearly tactile.Braille dot matrix
The flexible electrode lead (line lead, column lead) of column soft material drive membrane switched in M × N matrix formula arrangement, respectively with M row and
N number of column switch is connected.The braille point uses static pressure transmission mode: when soft material drive membrane powers off, soft material drive membrane is pushed
Pressure flow body upwards protrudes sealing film and braille touch pad uplink；When soft material drive membrane is powered, the pressure of pressure flow body
Protrude soft material drive membrane, then braille touch pad downlink flattens.The host computer is converted to character to display accordingly
Instruction is sent to controller by wireless transport module, and controller is opened according to instruction control matrix form flexible electrode lead uplink
The disconnection and closure of switch are closed and arranged, realizes display of the character on braille block.The interactive module can be read by manipulation and control
Sequence, speed of reading etc..The wireless transport module, controller, interactive module, power module can integrate as a component, Gu
The positions such as arm or palm are scheduled on, interactive operation is convenient for.Compared with prior art, which is driven using soft material,
Tactile comfort and safety are good, and power demand is smaller, can dress it is easy to carry, can also be combined as needed display it is more
Capable or multiple row braille, solve the problems, such as existing braille reader comfort is poor, power consumption is big, it is at high cost, be difficult to carry.
The preferable specific embodiment of the above, only the utility model.Certainly, the utility model can also have other more
Kind embodiment, without departing substantially from the spirit of the present invention and its essence, anyone skilled in the art,
When various corresponding equivalent change and modification can be made according to the utility model, it all should belong to right appended by the utility model and want
The protection scope asked.
Claims (9)
1. a kind of braille point of soft material driving, it is characterized in that: by silica gel ontology, to the soft material drive membrane of electric field-sensitive, absolutely
Edge pressure flow body, sealing film and the braille touch pad composition being installed on sealing film, the two sides of the soft material drive membrane are set
It is equipped with flexible electrode；
The sealing film and soft material drive membrane are respectively arranged in the upper and lower end face of silica gel ontology, and are connected with silica gel ontology
And it seals；Silica gel ontology position of flexible electrode on corresponding to soft material drive membrane is provided with through-hole, and through-hole is using upper small
Big trapezium structure down；The pressure flow body is filled in through-hole, and upper and lower ends are respectively acting on sealing film and soft material
Drive membrane；The flexible electrode of soft material drive membrane two sides is picked out respectively with line lead and column lead；Line lead and column lead
It is connected for the positive and negative anodes with power supply；
When flexible electrode is connected with the positive and negative anodes of power supply respectively by line lead, column lead, flexible electrode is loaded voltage, softwood
Expect that the plane stress of drive membrane reduces, generate the deformation that area becomes larger, thickness is thinning, sealing film is pushed soft by pressure flow body
Material drive membrane protrusion, while sealing film and braille touch pad downlink flatten；After voltage is removed, the plane of soft material drive membrane
Stress increases, and pushes braille touch pad convex by pressure flow body.
2. braille point as described in claim 1, it is characterized in that: the pressure flow body is compressed air or has a press liquid.
3. braille point as described in claim 1, it is characterized in that: in silica gel ontology, soft material drive membrane, sealing film and braille
The outer surface that touch pad is connected as a body covers one layer of insulation flexible film for playing safety protection function.
4. a kind of braille block of soft material driving, which is characterized in that include the braille point group as described in M row × N column claim 1
At braille lattice array, M row switch and N number of column switch, form a character image；
It is drawn positioned at soft material drive membrane side with the same line lead of flexible electrode of a line, it is another to be located at soft material drive membrane
The flexible electrode of side same row is drawn with same row lead, and each line lead, each column lead are switched with M row of braille block respectively
It switchs and connects with N number of column, row switchs and arrange the positive and negative anodes that switch is connected respectively to power supply.
5. braille block as claimed in claim 4, it is characterized in that: all brailles point shares a silica gel ontology, a soft material
Drive membrane, a sealing film.
6. a kind of refreshable Braille reader of soft material driving, which is characterized in that the reader includes described in claim 4
Braille block, controller, controller and each row switch, column switch connection, to control the movement of each row switch, column switch, when i-th
After the column switch of capable row switch and jth column chooses closing by controller, voltage is loaded into the braille point of the i-th row, jth column
In soft material drive membrane, so that the braille touch pad downlink or protrusion of each braille point, realize the display of certain braille.
7. refreshable Braille reader as claimed in claim 6, which is characterized in that it further includes upper with controller communication
Machine；Text information is converted to blind text information and is transferred to controller by host computer, and controller controls each according to blind text information
The movement of row switch, column switch, so that the braille touch pad downlink or protrusion of each braille point, realize the display of the braille word.
8. refreshable Braille reader as claimed in claim 7, which is characterized in that it further includes wireless transport module, upper
Blind text information is transferred to controller by wireless transport module by machine.
9. refreshable Braille reader as claimed in claim 6, which is characterized in that it further includes the interaction with controller communication
Module, the sequence and speed that the signal control Braille that controller is exported according to interactive module is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821554092.8U CN209216368U (en) | 2018-09-24 | 2018-09-24 | Braille point, braille block and the refreshable Braille reader of soft material driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821554092.8U CN209216368U (en) | 2018-09-24 | 2018-09-24 | Braille point, braille block and the refreshable Braille reader of soft material driving |
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| Publication Number | Publication Date |
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| CN209216368U true CN209216368U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821554092.8U Expired - Fee Related CN209216368U (en) | 2018-09-24 | 2018-09-24 | Braille point, braille block and the refreshable Braille reader of soft material driving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112258942A (en) * | 2020-11-11 | 2021-01-22 | 长春大学 | Layered gas-driven braille display device |
-
2018
- 2018-09-24 CN CN201821554092.8U patent/CN209216368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112258942A (en) * | 2020-11-11 | 2021-01-22 | 长春大学 | Layered gas-driven braille display device |
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Granted publication date: 20190806 Termination date: 20200924 |
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