CN208848437U - A kind of permanent magnetism self-locking linear drives type braille contact pilotage display structure - Google Patents
A kind of permanent magnetism self-locking linear drives type braille contact pilotage display structure Download PDFInfo
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- CN208848437U CN208848437U CN201820367214.6U CN201820367214U CN208848437U CN 208848437 U CN208848437 U CN 208848437U CN 201820367214 U CN201820367214 U CN 201820367214U CN 208848437 U CN208848437 U CN 208848437U
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- permanent magnet
- bottom plate
- cover board
- circuit board
- linear drives
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Abstract
The utility model discloses a kind of permanent magnetism self-locking linear drives type braille contact pilotages to show structure.Including touch tablet, cover board, shell, bottom plate and circuit board；Cage connection forms the space for being used to install touch driving unit of inner hollow between cover board bottom surface and plate top surface, and cover board top surface connecting cover plate, bottom plate bottom surface connects circuit board；It touches after driving unit upper end passes through cover board and stretches out touch tablet, touch after driving unit lower end passes through bottom plate and connect with circuit board, touching driving unit includes needle cap, thimble, upper permanent magnet, iron core, electromagnetic coil and lower permanent magnet.The utility model uses solenoid controlled, and drive part fast response time, display module refresh rate is high, low in energy consumption, small in size, light-weight.
Description
Technical field
The utility model relates to a kind of brailles to show structure, more particularly, to a kind of permanent magnetism self-locking linear drives type
Braille contact pilotage shows that structure, main application belong to mechanical engineering field on related braille reader or braille equipment.
Technical background
According to the World Health Organization (WHO) in population in the world data statistics in 2010 the results show that in worldwide
Damage interior, that about 2.85 hundred million people have eyesight different degrees of, wherein damaging more serious blind person's quantity about 39,000,000.
The country most as population in the world, China, while being also the most country of world blind person quantity.Therefore, for so it is huge and
Important blind community, society need give them care about and support, while they also there is an urgent need to obtain good study ring
Border and culture and education.
Due to visual impairment, blind person cannot as person of good sense come normally learn and read, blind person can only rely on tactile,
The eyesight of the sense of hearing and some remnants obtains external environment information, and the tactilely-perceptible touched at present by finger, and blind person can be with
The information such as text or image are obtained, are the main paths that blind person obtains external information.
Blind person is to read books printed in braille by tactile, and the quantity of books printed in braille is also very limited, is unable to satisfy blind person couple
The demand of knowledge.And the cost of manufacture of books printed in braille is relatively high, and fabrication cycle is long, and the requirement to paper is also very stringent,
It is not easy to save for a long time, type and content are also very limited.With the development of society and the progress of science and technology, in order to help blind person can
Preferably read and study, need to research and develop it is a kind of it is at low cost, experience sense is strong, easy to carry, fast response time, it can be achieved that read immediately
Read, can fast refresh, the pixel of vision is substituted for the Braille alphabet reading device of contact.
Braille (Braille), also referred to as braille, type are to design a kind of character read by tactile exclusively for blind person.
Blind person reads text by touching braille salient point, obtains knowledge.Braille is by French blind person Louis Brian earliest
(LouisBraille) in 1824 in Paris utility model, the braille of Louis Brian utility model is international at present
It is known as formal braille, there has also been braille national standard (GB/T15720-2008) at present for China.Braille touches driving unit
Important component part in Braille alphabet reading device, domestic and international researcher have developed different driving knots based on different driving principles
Structure mainly includes the driving methods such as piezoelectric ceramics, electro photoluminescence, memorial alloy, pneumatic, temperature control, electromagnetism and other new materials.
Although having had already appeared the tactile ancillary equipment of many similar functions on the market at present, cost and price are excessively
It is high, and power consumption is also very big, although other small-size equipment cost is controlled, has violated the general touching of blind person
Habit is touched, interactive mode and interactive experience are bad.Therefore, a small power consumption, cheap, safe and reliable braille are developed
The aobvious module of point shows the exploitation of device and popularize to Braille alphabet reading device or braille point provides possibility, has important value.
Utility model content
The utility model is directed to the deficiency of existing braille contact driving mechanism, proposes a kind of permanent magnetism self-locking linear drives
Type braille contact pilotage shows structure, and it is the important component that braille point shows device and Braille alphabet reading device which, which shows module,
It is suitble to the Braille of all languages and form of ownership to generate, while blind person's reading rate not only can be improved in the module, also very
Big degree reduces power consumption.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The utility model includes touch tablet, cover board, shell, bottom plate and circuit board；Cage connection is in cover board bottom surface and bottom plate
Inner hollow is formed between top surface is used to install the space for touching driving unit, and cover board top surface connecting cover plate, bottom plate bottom surface connects
Connect circuit board；Touch after driving unit upper end passes through cover board and stretch out touch tablet, touch driving unit lower end pass through after bottom plate with electricity
The connection of road plate.
The touch driving unit includes needle cap, thimble, upper permanent magnet, iron core, electromagnetic coil and lower permanent magnet；Electromagnetism
Coil is fixed on bottom plate, and iron core lower end is fixed with core bar, and core bar is inserted into electromagnetic coil interstitial hole, and electromagnetic coil lower end is set
It is connect after thering is draw pin, draw pin to pass through bottom plate with circuit board, the bottom plate below electromagnetic coil is equipped with lower permanent magnet, lower permanent magnet position
Immediately below the end of iron core core bar；Cover board bottom surface above iron core is fixed with permanent magnet, and iron core upper end is fixed with thimble, top
Needle and core bar are co-axially mounted, and thimble top is connect after passing through the through-hole on upper permanent magnet and cover board with needle cap, and needle cap is movably
It is placed in the vestibule of touch tablet.Band dynamic iron core moves up and down under electromagnetic coil energization and under no power, and then needle cap is driven to stretch
The vestibule of touch tablet is outer out or to be placed in the hole of touch tablet intracavitary.
For the utility model in working position and under being not powered on, needle cap, which passes through, overcomes gravity to stretch out cover board under magnetic thrust, is maintained at
A high position, formation permanent magnetism is self-locking, drives braille contact pilotage autonomous control.
Two magnetic poles of the upper permanent magnet and lower permanent magnet are arranged along the vertical direction, and magnetic pole arranged direction is opposite.
The electromagnetic coil bottom is embedded in the groove of bottom plate.
The draw pin wears out circuit board after being welded to circuit board behind the draw pin hole of bottom plate.
The upper permanent magnet interference fit ground is in the groove of cover board.
It include eight touch driving units, eight touch driving unit distributions are arranged in 2*4 array, form 8 brailles
Touch-control.
The touch driving unit is all connected with control circuit board, controls the positive counter current of electromagnetic coil by control circuit board
Input so that iron core generates different magnetic poles, according to the principle that identical charges repel each other, there is a natural attraction between the sexes, iron core upper permanent magnet and under
Under the action of permanent magnet, upper and lower movement is realized.
Pitch of holes on the touch tablet corresponds to the distance between each needle cap, while the lifting height of needle cap complies with standard
The requirement of Braille.
The utility model has the beneficial effect that
1, the utility model uses solenoid controlled, and drive part fast response time, display module refresh rate is high, function
It consumes that low, small in size, light-weight, stability is good, high reliablity, power consumption can be substantially reduced, economized on resources.
2, the utility model can random combine arrangement, thus produce it is a kind of with fast refresh, by the pixel of vision
It is substituted for the blind touch cognitive device of contact.
Detailed description of the invention
Fig. 1 is 8 braille display module outside drawings of the utility model folk prescription.
Fig. 2 is 8 braille display module interior views of the utility model folk prescription.
Fig. 3 is 8 braille display module side sectional views of the utility model folk prescription.
Fig. 4 is the utility model single needle structural schematic diagram.
Fig. 5 is the utility model single needle driving principle figure.
Fig. 6 is the utility model Braille alphabet reading device schematic diagram.
In figure: touch tablet 10, cover board 20, needle cap 30, thimble 40, upper permanent magnet 50, shell 60, iron core 70, electromagnetic coil
80, lower permanent magnet 90, bottom plate 100, circuit board 110, draw pin 120.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 3, Figure 4, the utility model include touch tablet 10, cover board 20, needle cap 30, thimble 40, upper permanent magnet 50,
Shell 60, iron core 70, electromagnetic coil 80, lower permanent magnet 90, bottom plate 100, circuit board 110, draw pin 120.Wherein, as shown in Figure 1,
Touch tablet 10, cover board 20, shell 60, bottom plate 100 and circuit board 110 are successively fixedly connected integrally from top to bottom, and shell 60 connects
Connect the space for being used to install touch driving unit that inner hollow is formed between 100 top surface of 20 bottom surface of cover board and bottom plate, cover board
20 top surface connecting cover plates 20,100 bottom surface of bottom plate connect circuit board 110；Mainly installation touches driving unit in shell 60, touches and drives
Touch tablet 10 is stretched out after passing through cover board 20 in moving cell upper end, touches after driving unit lower end passes through bottom plate 100 and connects with circuit board 110
It connects.
As shown in Figure 3, Figure 4, touching driving unit includes needle cap 30, thimble 40, upper permanent magnet 50, iron core 70, electromagnetic wire
Circle 80 and lower permanent magnet 90；Electromagnetic coil 80 is fixed on 60 inner wall of shell, and 70 lower end of iron core is fixed with core bar, and core bar is inserted into electricity
In 80 interstitial hole of magnetic coil, 80 lower end of electromagnetic coil is equipped with draw pin 120, and draw pin 120 connects after passing through bottom plate 100 with circuit board 110
It connects, the bottom plate 100 of the lower section of electromagnetic coil 80 is equipped with lower permanent magnet 90, under lower permanent magnet 90 is located at the end of 70 core bar of iron core just
Side；20 bottom surface of cover board of 70 top of iron core is fixed with permanent magnet 50, and 70 upper end of iron core is fixed with thimble 40, thimble 40 and core bar
It is co-axially mounted, 40 top of thimble is connect after passing through the through-hole on upper permanent magnet 50 and cover board 20 with needle cap 30, and needle cap 30 is movable
Ground is placed in the vestibule of touch tablet 10, and touch tablet 10 is provided with the vestibule moved up and down for needle cap 30.
In specific implementation, lower permanent magnet 90, which respectively corresponds, to be inserted in the lower recess of electromagnetic coil 80, and the two is connected, electromagnetism
The bottom of coil 80 is respectively embedded in the groove of bottom plate 100, is fixed by glue, while guaranteeing that draw pin 120 passes through bottom plate 100
Draw pin hole iron core 70 is inserted into respectively in the interstitial hole of electromagnetic coil 80, upper permanent magnetism convenient for the welding of circuit board 110 later
50 interference of iron is fixed in the groove of cover board 20, in the assembling process of upper and lower permanent magnet, it is ensured that the magnetic pole of upper and lower permanent magnet
Installation is correct, as shown in Figure 5.
Specific implementation is as shown in Fig. 2, a braille contact pilotage display unit shows one " side " of Braille, one " side "
Be eight sags and crests permutation and combination being formed by different height of four rows two column represented by totally eight pieces of contact pilotages together, each piece is touched
Needle is driven by an electromagnetic coil, a total of eight touches driving unit of the module, and eight touch driving unit distributions are in 2*4 times
Column arrangement, forms 8 braille touch-controls.
After the drive part of one " side " all installs, puts on shell 60, shell 60 and bottom plate 100 and connect by the way that glue is fixed
It connecing, covers cover board 20, cover board 20 is fixedly connected with shell 60 by glue, thimble 40 is inserted into the upper grooves of iron core 70,
It being formed and is connected, needle cap 30 is fixed on the top of thimble 40 by glue, cover touch tablet 10, the bottom embedded circuit plate 110 of module,
Wherein guarantee that draw pin 120 passes through the draw pin hole on circuit board 110, and draw pin 120 and circuit board 120 are welded.
The working principle of the utility model is as follows:
As shown in Fig. 3,5, illustrate by taking one of single needle driving structure as an example, by being powered to make to electromagnetic coil 80
It obtains iron core both ends and generates magnetic field, upper end is the pole N at this time, and lower end is the pole S, according to the principle that identical charges repel each other, there is a natural attraction between the sexes, so that iron
70 upper end of core and upper permanent magnet 50 are attracting, and 70 lower end of iron core is repelled each other with lower permanent magnet 90, at both ends under the action of magnetic force, iron core to
Upper movement, push needle cap move upwards, formed salient point, turn-off current, needle cap 30 will not return to lowest order at this time because on forever
Magnet 50, which firmly attracts iron core 70, makes it not fall under gravity, reduces power consumption；When not needing to form work
When making position, then to electromagnetic coil lead to reverse current, upper end is the pole S at this time, and lower end is the pole N, under the influence of a magnetic field, on iron core 70
End is repelled each other with upper permanent magnet 50, and 70 lower end of iron core and lower permanent magnet 90 are attracting, and at both ends under the action of magnetic force, iron core 70 is transported downwards
It is dynamic, so that needle cap 30 moves downward, concave point is formed, this is a duty cycle, and as shown in Fig. 3,5, wherein the left side is indicated in figure
Working position, the right indicate inoperative position.
By the drive control to single needle, the control to " side " 8 display modules is formed, it can shape according to salient point difference
At different Brailles, being finally combined into can show for the permanent magnetism self-locking linear drives type braille contact pilotage that blind person can use
Show module, as shown in Figure 1.The assembly of different reading devices may be implemented eventually by the combination to individual module, here with 5 ×
For 5, as shown in Figure 6.Reading device is touched by the braille that the various combination to module can form M row N column, is shared at this time
8 × M × N number of contact, which not only can read Braille for blind person, but also may also help in blind person and touch reading figure
Picture largely increases the mode that blind person obtains information.
Claims (8)
1. a kind of permanent magnetism self-locking linear drives type braille contact pilotage shows structure, it is characterised in that: including touch tablet (10), cover board
(20), shell (60), bottom plate (100) and circuit board (110)；Shell (60) is connected to cover board (20) bottom surface and bottom plate (100) top
The space for being used to install touch driving unit of inner hollow, cover board (20) top surface connecting cover plate (20), bottom plate are formed between face
(100) bottom surface connection circuit board (110)；It touches driving unit upper end and passes through cover board (20) stretching touch tablet (10) afterwards, touch and drive
Moving cell lower end passes through bottom plate (100) and connect afterwards with circuit board (110).
2. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 1 shows structure, it is characterised in that:
The touch driving unit include needle cap (30), thimble (40), upper permanent magnet (50), iron core (70), electromagnetic coil (80) and
Lower permanent magnet (90)；Electromagnetic coil (80) is fixed on shell (60) inner wall, and iron core (70) lower end is fixed with core bar, and core bar is inserted into
In electromagnetic coil (80) interstitial hole, electromagnetic coil (80) lower end be equipped with draw pin (120), draw pin (120) pass through bottom plate (100) afterwards with
Circuit board (110) connects, and the bottom plate (100) below electromagnetic coil (80) is equipped with lower permanent magnet (90), lower permanent magnet (90) position
Immediately below the end of iron core (70) core bar；Cover board (20) bottom surface above iron core (70) is fixed with permanent magnet (50), iron core
(70) upper end is fixed with thimble (40), and thimble (40) and core bar are co-axially mounted, thimble (40) top pass through upper permanent magnet (50) and
It is connect after through-hole on cover board (20) with needle cap (30), needle cap (30) is movably placed in the vestibule of touch tablet (10).
3. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
Two magnetic poles of the upper permanent magnet (50) and lower permanent magnet (90) are arranged along the vertical direction, and magnetic pole arranged direction is opposite.
4. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
Described electromagnetic coil (80) bottom is embedded in the groove of bottom plate (100).
5. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
The draw pin (120) wears out circuit board (110) after being welded to circuit board (110) behind the draw pin hole of bottom plate (100).
6. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
Upper permanent magnet (50) the interference fit ground is in the groove of cover board (20).
7. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
It include eight touch driving units, eight touch driving unit distributions are arranged in 2*4 array, form 8 braille touch-controls.
8. a kind of permanent magnetism self-locking linear drives type braille contact pilotage according to claim 2 shows structure, it is characterised in that:
Pitch of holes on the touch tablet (10) corresponds to the distance between each needle cap (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820367214.6U CN208848437U (en) | 2018-03-19 | 2018-03-19 | A kind of permanent magnetism self-locking linear drives type braille contact pilotage display structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820367214.6U CN208848437U (en) | 2018-03-19 | 2018-03-19 | A kind of permanent magnetism self-locking linear drives type braille contact pilotage display structure |
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| Publication Number | Publication Date |
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| CN208848437U true CN208848437U (en) | 2019-05-10 |
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| CN201820367214.6U Active CN208848437U (en) | 2018-03-19 | 2018-03-19 | A kind of permanent magnetism self-locking linear drives type braille contact pilotage display structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281070A (en) * | 2018-03-19 | 2018-07-13 | 浙江理工大学 | Permanent magnetism self-locking linear drives type braille contact pilotage shows structure |
| CN112233506A (en) * | 2020-06-03 | 2021-01-15 | 吕虹 | Electromagnetic braille display device |
-
2018
- 2018-03-19 CN CN201820367214.6U patent/CN208848437U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281070A (en) * | 2018-03-19 | 2018-07-13 | 浙江理工大学 | Permanent magnetism self-locking linear drives type braille contact pilotage shows structure |
| CN112233506A (en) * | 2020-06-03 | 2021-01-15 | 吕虹 | Electromagnetic braille display device |
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