CN113327488B - Array valve and assembly method - Google Patents
Array valve and assembly method Download PDFInfo
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- CN113327488B CN113327488B CN202010130340.1A CN202010130340A CN113327488B CN 113327488 B CN113327488 B CN 113327488B CN 202010130340 A CN202010130340 A CN 202010130340A CN 113327488 B CN113327488 B CN 113327488B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B21/00—Teaching, or communicating with, the blind, deaf or mute
- G09B21/001—Teaching or communicating with blind persons
- G09B21/003—Teaching or communicating with blind persons using tactile presentation of the information, e.g. Braille displays
- G09B21/004—Details of particular tactile cells, e.g. electro-mechanical or mechanical layout
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention relates to the technical field of valves, in particular to an array valve, which comprises: the plurality of isolation plates are arranged at intervals, and at least one male plug or female plug is arranged on each isolation plate; the electrode assembly is arranged on two sides of the separation plate by taking the separation plate as the center, and is provided with at least one female plug matched with the male plug or at least one male plug matched with the female plug; the two adjacent isolating plates and the electrode assemblies at the two sides jointly enclose a valve channel which allows electrorheological fluid to flow. Thereby providing a lower cost array valve. The invention also provides an assembling method of the array valve.
Description
Technical Field
The invention relates to the technical field of valves, in particular to an array valve and an assembly method.
Background
Braille is the only literal medium for the vision-impaired group to learn knowledge and obtain information freely. The braille is the phonogram, the three-party braille displays a Chinese character, only a single-row braille point display is arranged on the market, the display content is less, the price is high, and the braille is difficult to popularize in visually impaired people; and because the single-row braille point display bears less information, the learning efficiency of visually impaired people is also affected. The key technology of multi-row braille display is to realize independent control of the array braille convex points. The cross section size of the controller or the valve is in millimeter level or even sub-millimeter level limited by the Braille standard, and meanwhile, the structure and the layout of the controller or the valve are more challenged, but the realization technical difficulty is high, so that the production cost of a feasible scheme is high and is not low, and the controller or the valve is hardly accepted by the blind group; at the same time, this is also an important reason why multi-line area array braille display devices are not marketed at a later time.
The principle model machine of the HyperBraille (super Braille) area array Braille display, which is developed in Germany, adopts a piezoelectric bimorph as an actuator for driving Braille bumps, and has 7200 points in total, and the pre-selling price is up to about 37 ten thousand yuan of RMB. Therefore, the low-cost area array Braille display is a fundamental way for solving the problem of no obstacle of the information of visually impaired people.
Disclosure of Invention
Therefore, the invention aims to overcome the defect of higher manufacturing cost of the Braille point display in the prior art, thereby providing an array valve with lower cost and an assembly method.
In order to solve the above technical problems, the present invention provides an array valve, including:
the plurality of isolation plates are arranged at intervals, and at least one male plug or female plug is arranged on each isolation plate;
an electrode assembly which is arranged on two sides of the separation plate by taking the separation plates as the center, and is provided with at least one female plug matched with the male plug or at least one male plug matched with the female plug; the two adjacent isolating plates and the electrode assemblies at the two sides jointly enclose a valve channel which allows electrorheological fluid to flow.
Further, the male plug is a protrusion formed on the partition plate; the female plug is a blind hole formed in the electrode assembly.
Further, the male plug is a protrusion formed on the partition plate; the female plug is a through hole formed in the electrode assembly.
Further, the male plug has four ends respectively disposed on opposite sides of the partition plate.
Further, the electrode assembly includes a support plate and electrode layers disposed at both sides of the support plate.
Further, the electrode layer is a conductive sheet or a conductive film.
Further, the isolation plate and the support plate are made of insulating materials; the electrode layer is made of non-insulating materials.
Further, fixing pieces for fixedly connecting the electrode assembly are coated on the separator and the male plug.
The invention also provides an assembling method of the array valve, which comprises the following steps: arranging a plurality of isolating plates at preset intervals, arranging electrode assemblies on two sides taking the isolating plates as the center, inserting at least one male plug on each isolating plate into at least one female plug of the electrode assembly, or inserting at least one male plug on the electrode assembly into at least one female plug on the isolating plate, so that two adjacent isolating plates and the electrode assemblies on two sides jointly enclose a valve channel allowing electrorheological fluid to flow, and thus the assembly is completed.
Further, the specific method for installing the separator and the electrode assembly is as follows: and fixing pieces for fixedly connecting the electrode assembly are coated on the separator and the male plug, and then the male plug is inserted into the female plug so that the surface of the separator is in full contact with the surface of the electrode assembly.
The technical scheme of the invention has the following advantages:
1. the invention provides an array valve, comprising: the plurality of isolation plates are arranged at intervals, and at least one male plug or female plug is arranged on each isolation plate; the electrode assembly is arranged on two sides of the separation plate by taking the separation plate as the center, and is provided with at least one female plug matched with the male plug or at least one male plug matched with the female plug; the two adjacent isolating plates and the electrode assemblies at two sides form a valve channel which allows electrorheological fluid to flow. By inserting the separator into the electrode assembly, connection between the separator and the electrode assembly is achieved, thereby forming a stacked structure. The electrorheological fluid flows in a valve channel in the stacked structure, so that when the electrorheological fluid does not apply an external electric field, the electrorheological fluid keeps the fluid property, and the acting force for operating the braille convex point can be transmitted through the hydraulic action; under the condition of applying an external electric field, the electrorheological fluid is converted into a solid-like state, so that certain yield stress is reflected, the hydraulic pressure for operating the Braille salient points can be blocked, and the Braille salient points are kept unchanged in the original state; both of the above cases facilitate reading by the user. The isolating plate and the electrode assembly can be processed by adopting a batch type industrial production process, so that the processing cost is low and the price is low, and the cost of the manufactured array valve is low, and compared with a Braille display manufactured by a piezoelectric bimorph, the cost is greatly reduced.
2. The invention provides an array valve, wherein the male plug is a bulge formed on a separation plate; the female plug is a blind hole formed in the electrode assembly. The blind holes are arranged, so that the electrorheological fluid can be prevented from penetrating and leaking to the adjacent valve channels opposite to the support plate where the blind holes are arranged.
3. According to the array type valve provided by the invention, the male plug is a protrusion integrally formed on the isolation plate; the female plug is a through hole formed in the electrode assembly. The arrangement of the protrusions and the through holes facilitates the mutual engagement of the separator and the electrode assembly, and the separator and the electrode assembly are assembled into an integral piece. Meanwhile, the processing method of the bulge and the through hole is simple and convenient, and the cost can be further reduced in the processing process.
4. According to the array type valve provided by the invention, the isolation plate and the support plate are made of insulating materials; the electrode layer is made of non-insulating materials, so that electric insulation is formed between the two electrodes, and the insulation of the electrorheological fluid valve and the working electric field intensity value of an externally-applied electric field are not affected due to short circuit or insufficient insulation intensity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an array valve;
FIG. 2 is a schematic diagram of an array valve with a single row of individual electrode layers;
FIG. 3 is a schematic diagram of an array valve with multiple rows of independent electrode layers;
FIG. 4 is a schematic diagram of a Braille bump display;
reference numerals illustrate:
1-a separator; 11-male insertion; 2-electrode layers; 3-supporting plates; 31-female insertion; 4-valve channels; 5-electrorheological fluid; 6-a piston; 7-braille convex points; an 8-electrode assembly;
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 1 to 4, a specific implementation manner of an array valve provided by the embodiment of the invention includes a separator 1 and an electrode assembly 8.
The plurality of isolation plates 1 are arranged at intervals, and at least one male plug 11 is arranged on each isolation plate 1;
the electrode assembly 8 is arranged on two sides of the separator 1 by taking a plurality of separators 1 as the center, at least one female plug 31 matched with the male plug 11 is arranged on the electrode assembly 8, and two adjacent separators 1 and the electrode assemblies 8 on two sides jointly enclose a valve channel 4 allowing the electrorheological fluid 5 to flow.
In the braille display, the assembly is performed using a plurality of sets of the separator 1 and the electrode assembly 8. In the present embodiment, taking two electrode assemblies 8 provided on both sides of a plurality of separators 1 as an example, the separators 1 are inserted into the electrode assemblies 8, connection between the separators 1 and the electrode assemblies 8 is achieved, and a stacked structure is formed. And, the valve channel 4 formed by surrounding the gap between two electrode assemblies 8 and two adjacent isolation plates 1 provides a storage space for electrorheological fluid 5, and the electrorheological fluid 5 enters the valve channel 4 from the bottom inlet. Wherein the top of the valve channel 4 is the outlet of the valve channel 4.
As shown in fig. 4, the plurality of valve passages 4 communicate with one main valve passage 4, and a piston 6 is provided at an inlet of the main valve passage 4, so that one piston 6 can operate the plurality of valve passages 4. When no external electric field is applied, the electrorheological fluid 5 maintains the fluid property, and the acting force for operating the Braille convex points 7 can be transmitted through the hydraulic action; when an external electric field is applied, the electrorheological fluid 5 is converted into a solid-like state, a certain yield stress is reflected, and the hydraulic pressure for operating the Braille salient points 7 can be blocked, so that the Braille salient points 7 keep unchanged in the original state; both of the above cases facilitate reading by the user. The isolation plate 1 and the electrode assembly 8 can be manufactured by a batch processing method, so that the cost is low, and compared with a Braille display manufactured by a piezoelectric bimorph, the cost of the manufactured array valve is greatly reduced.
Wherein the male plug 11 is a protrusion formed on the partition plate 1; the female plug 31 is a blind hole formed in the electrode assembly 8. The arrangement of the blind holes can prevent electrorheological fluid from penetrating and leaking to the adjacent valve channels 4 opposite to the support plate where the blind holes are arranged. However, in the actual assembly process, a small amount of glue is required to seal the gap between the isolation plate 1 and the support plate 3 due to processing errors such as flatness.
If the viscosity of the electrorheological fluid is high, the electrorheological fluid can achieve a very high sealing effect by means of the assembly pressure seal under the action of the assembly pressure.
If the viscosity of the electrorheological fluid is low, the electrorheological fluid is difficult to obtain a good sealing effect only by assembling pressure sealing, and a separate sealing element is needed to ensure absolute sealing.
As an alternative embodiment, the male plug 11 is a protrusion integrally formed on the partition plate 1; the female plug 31 is a through hole formed in the electrode assembly 8. The provision of the protrusions and the through-holes facilitates the mutual engagement of the separator 1 and the electrode assembly 8, and is assembled as a single piece. Meanwhile, the processing method of the bulge and the through hole is simple and convenient, and the cost can be further reduced in the processing process. In the assembly process, an adhesive is required to be added for curing and sealing so as to ensure the tightness of the two valve channels 4 connected with the same through hole by assembling pressure sealing, and the electrorheological fluid permeation in the adjacent valve channels 4 connected with the through hole is prevented, so that the blocking property of the valve is influenced.
The specific installation position of the male plug 11 is not particularly limited, and may be provided in the middle of the partition board 1, or may be provided at both end portions of the partition board 1.
In the present embodiment, the number of the separators 1, the distance between two adjacent separators are not particularly limited, and are set by themselves according to the length of the actual electrode assembly 8; when applied to a braille display, the distance between two adjacent spacers 1 should meet the braille standard.
As an alternative embodiment, a female plug 31 may also be provided on the separator 1, and at least one male plug 11 adapted to the female plug 31 may be provided on the electrode assembly 8.
In this embodiment, the male plug 11 has two ends respectively disposed on opposite sides of the partition plate 1. The specific number of the male plugs 11 is not specifically limited, and is set according to practical situations.
In this embodiment, the electrode assembly 8 includes a support plate 3 and electrode layers 2 disposed on both sides of the support plate 3.
As an alternative embodiment, it is also possible to obtain the electrode layer 2 by increasing or growing the thickness of the electrode layer 2 on the support plate 3 by electroplating or coating, spraying, depositing a thin film, or the like on the surface of the support plate 3 corresponding to the separator 1.
As shown in fig. 2-3, the support plate 3 and the electrode layer 2 may also be two separate pieces, wherein the electrode layer 2 may be a conductive sheet or film and is mounted on the support plate 3 by press-fitting.
As an alternative embodiment, the electrode layer 2 and the support plate 3 may also be sealed with glue, an elastic membrane.
In the present embodiment, the isolation plate 1 and the support plate 3 are made of an insulating material; the electrode layer 2 is made of non-insulating materials, so that electric insulation is formed between the two electrodes, and the insulation of the electrorheological fluid valve and the working electric field intensity value of an externally-applied electric field are not affected due to short circuit or insufficient insulation intensity.
Fixing pieces for fixedly connecting the electrode assembly 8 are coated on the separator 1 and the male plug 11. In this embodiment, the fixing member is glue, and by coating a small amount of glue on the partition plate 1 and the male plug 11, after the whole assembly is completed, the glue is compressed and cured, so that the sealing effect between the partition plate 1 and the electrode layer 2 and between the partition plate 1 and the support plate 3 is fully ensured, and the sealing performance between the valve channels 4 is ensured, so that the electrorheological fluid 5 between the valve channels 4 is further ensured to flow only between the inlet and the outlet of the valve channels 4, and penetration, leakage and flow between the valve channels 4 are not generated any more.
The invention also provides an assembling method of the array electrode structure, which comprises the following steps: the assembly is completed by arranging a plurality of separators 1 at predetermined intervals, arranging electrode assemblies 8 on both sides of the centers of the plurality of separators 1, inserting at least one male plug 11 on each separator 1 into at least one female plug 31 of the electrode assembly 8, or inserting at least one male plug 11 on the electrode assembly 8 into at least one female plug 31 on the separator 1, coating fixing pieces for fixedly connecting the electrode assemblies 8 on the separators 1 and the male plugs 11, and inserting the male plugs 11 into the female plugs 31 so that the surfaces of the separators 1 and the surfaces of the electrode assemblies 8 are completely contacted, so that the adjacent two separators 1 and the electrode assemblies 8 on both sides jointly form a valve channel 4 allowing the electric current to flow through. The method has simple assembly steps, only the isolation plate 1, the electrode layer 2 and the support plate 3 are assembled into an integral piece at one time, and a valve channel 4 is formed between two adjacent isolation plates 1 and the electrode layer 2 and the support plate 3; the cost of the array valve assembled by the assembly method is greatly reduced.
The specific assembly method comprises the following steps: first, a plurality of separators 1 are laid on one electrode assembly 8, then electrode layers 2 and support plates 3 are sequentially laid on the upper surfaces of the plurality of separators 1, so that a stacked structure is formed, during stacking, a small amount of glue can be coated on the surfaces of the separators 1 and the surfaces of the male inserts 11 in advance, then the male inserts pass through the electrode layers 2 and are inserted into the female inserts 31 on the support plates 3, and after the whole assembly is completed, the assembly is compressed and cured, so that the electrorheological fluid 5 between the valve channels 4 is further ensured to flow only between the inlet and the outlet of the respective valve channels 4, and penetration, leakage and flow between the valve channels 4 are prevented. Meanwhile, the tolerance fit between the male plug 11 and the female plug 31, the difference of the elastic modulus between the material of the isolation plate 1 and the support plate 3, or the difference of the deformation capability caused by the difference of the elastic modulus between the material of the isolation plate 1 and the material of the electrode layer 2 can be utilized, and in the assembly process, the sealing effect of the contact surfaces of the isolation plate 1 and the electrode layer 2 and the isolation plate 1 and the support plate 3 is achieved by means of the engagement force of the female plug 31 and the male plug 11 or the assembly pressure, so that the sealing performance among the valve channels 4 is maintained, and the electrorheological fluid 5 only flows between the inlet and the outlet of the valve channel 4.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (8)
1. An array valve, comprising:
the plurality of isolation plates (1) are arranged at intervals, and at least one male plug (11) or female plug (31) is arranged on the isolation plates (1);
an electrode assembly (8) which is arranged on both sides of the separator (1) with a plurality of separators (1) as the center, wherein at least one female plug (31) matched with the male plug (11) is arranged on the electrode assembly (8), or at least one male plug (11) matched with the female plug (31) is arranged on the electrode assembly (8); two adjacent isolating plates (1) and two electrode assemblies (8) on two sides are enclosed together to form a valve channel (4) which allows the current flowing through of the electrorheological fluid (5);
the electrode assembly (8) comprises a supporting plate (3) and electrode layers (2) arranged on two sides of the supporting plate (3);
fixing pieces for fixedly connecting the electrode assembly (8) are coated on the isolation plate (1) and the male plug (11).
2. An array valve according to claim 1, wherein the male insert (11) is a protrusion formed on the partition plate (1); the female plug (31) is a blind hole formed in the electrode assembly (8).
3. An array valve according to claim 1, wherein the male insert (11) is a protrusion formed on the partition plate (1); the female plug (31) is a through hole formed in the electrode assembly (8).
4. An array valve according to any one of claims 1-3, wherein the male insert (11) has four ends, one at each of opposite sides of the partition (1).
5. An array valve according to claim 1, characterized in that the electrode layer (2) is a conductive sheet or film.
6. The array valve according to claim 5, characterized in that the spacer plate (1) and the support plate (3) are made of insulating material; the electrode layer (2) is made of non-insulating materials.
7. A method of assembling an array valve comprising the steps of: arranging a plurality of isolation plates (1) at preset intervals, arranging electrode assemblies (8) on two sides of the isolation plates (1) serving as centers, inserting at least one male plug (11) on each isolation plate (1) into at least one female plug (31) of the electrode assembly (8), or inserting at least one male plug (11) on the electrode assembly (8) into at least one female plug (31) on the isolation plate (1), so that two adjacent isolation plates (1) and the electrode assemblies (8) on two sides jointly enclose a valve channel (4) allowing current flowing through the current flowing liquid (5), and thus completing assembly.
8. The method of assembling an array valve according to claim 7, wherein the specific method of mounting the separator (1) with the electrode assembly (8) is: fixing pieces for fixedly connecting the electrode assembly (8) are coated on the separator (1) and the male plug (11), and then the male plug (11) is inserted into the female plug (31) so that the surface of the separator (1) is in complete contact with the surface of the electrode assembly (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130340.1A CN113327488B (en) | 2020-02-28 | 2020-02-28 | Array valve and assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130340.1A CN113327488B (en) | 2020-02-28 | 2020-02-28 | Array valve and assembly method |
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| CN113327488A CN113327488A (en) | 2021-08-31 |
| CN113327488B true CN113327488B (en) | 2023-06-23 |
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| CN202010130340.1A Active CN113327488B (en) | 2020-02-28 | 2020-02-28 | Array valve and assembly method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165636A (en) * | 2021-12-13 | 2022-03-11 | 中国科学院电工研究所 | Electrorheological valve with mesh electrode structure and braille convex point linkage structure |
| CN114233912A (en) * | 2021-12-17 | 2022-03-25 | 中国科学院电工研究所 | Array type electrorheological valve with embedded runner and processing method thereof |
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