CN108199706A - Explosion-proof intrinsic safety type button and its keyboard - Google Patents
Explosion-proof intrinsic safety type button and its keyboard Download PDFInfo
- Publication number
- CN108199706A CN108199706A CN201711463921.1A CN201711463921A CN108199706A CN 108199706 A CN108199706 A CN 108199706A CN 201711463921 A CN201711463921 A CN 201711463921A CN 108199706 A CN108199706 A CN 108199706A
- Authority
- CN
- China
- Prior art keywords
- baffle
- cylinder
- intrinsic safety
- explosion
- safety type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/90—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of galvano-magnetic devices, e.g. Hall-effect devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
Abstract
The invention discloses explosion-proof intrinsic safety type button and its keyboards, including housing, first baffle, second baffle, button, spring and wiring board, the cylinder of wherein button extends outward to form block from top, and the bottom end outward bending of block, bending part are connected to the inside of first baffle for being acted in non-pressing keys by elastic force；Spring is socketed on cylinder, and one end is connected in block, and the other end is connected to the upper surface of second baffle；The bottom of cylinder is provided with magnet, and during pressing keys, cylinder passes through second baffle to be connected to the upper surface of housing, corresponding with the position of the Hall sensor on the wiring board of housing opposite side.The present invention uses novel explosiveproof isolation mode, improves intrinsic safety characteristic, convenient for safeguarding and replacing, reduces installation complexity and extends keyboard service life.
Description
Technical field
The present invention relates to explosion-proof intrinsic safety type equipment more particularly to a kind of explosion-proof intrinsic safety type buttons and its keyboard.
Background technology
Many equipment need the connection interface of human-computer interaction, and keyboard is most commonly seen man-machine interaction mode, either
The control of equipment, the setting of parameter, the input of instruction and the debugging of program all this human-computer interaction interfaces of too busy to get away keyboard.By
Under the particular surroundings for having requirement of explosion proof in oil gas, dust, hazardous chemical etc., need to use intrinsically safe equipment, i.e., originally
Install it is standby, intrinsic safety keyboard meet using function while, it is necessary to there is good safeguard function.
At present, the intrinsic safety keyboard that most of intrinsic safety equipment use is to press thin film again with long flange frame on including keyboard
Or hole structure part, to achieve the purpose that protection.In order to which the issuable electric spark of wiring board is prevented to be transmitted to dangerous show
Field side, is needed to be made long by key length, to achieve the purpose that flame proof, as shown in Figure 1.The design structure is complicated, cost is high,
Assembling is difficult, button touch feeling is poor, overall structure is very thick and maintainable is greatly reduced.
Invention content
Of the existing technology in order to solve the problems, such as, the present invention proposes a kind of explosion-proof intrinsic safety type button and its keyboard,
The structure of intrinsic safety button is simplified, enhance isolation strength and reliability and improves the service life of button.
The technical solution adopted in the present invention is：
Explosion-proof intrinsic safety type button, including housing, first baffle, second baffle, button, spring and wiring board, wherein described
The cylinder of button extends outward to form block, and the bottom end outward bending of the block from top, and bending part is used to not press
The inside of the first baffle is connected to during the button by elastic force effect；The spring is socketed on the cylinder, and one end is supported
It is connected in the block, the other end is connected to the upper surface of the second baffle；The bottom of the cylinder is provided with magnet, pressing
During the button, the cylinder passes through the second baffle to be connected to the upper surface of the housing, and another positioned at the housing
The position of Hall sensor on the wiring board of side is corresponding.
Preferably, when the bottom end of the cylinder is connected to the upper surface of the housing, the bending part is connected to described
The upper surface of two baffles, the top of the block are concordant with the upper surface of the first baffle.
Preferably, the magnet is embedded in the bottom of the cylinder, and with the bottom flush of the cylinder.
Preferably, the cylinder is hollow structure.
Preferably, the housing is groove structure, the first baffle and the second baffle are located in groove, and described
The upper surface of first baffle and the top flush of the housing.
Preferably, one end of the spring is fixedly connected in the block, the other end is fixedly connected on the second gear
The upper surface of plate.
Preferably, the block is adapted through the first baffle and with the shape of the first baffle；The cylinder
It is adapted through the second baffle and with the shape of the second baffle.
Explosion-proof intrinsic safety type keyboard, including above-described explosion-proof intrinsic safety type button.
Compared with prior art, the method have the benefit that：
Explosion-proof intrinsic safety type button and its keyboard provided by the invention meet intrinsic safety requirement of shelter, are caused suddenly by changes of magnetic field
You carry out explosiveproof isolation at the variation of sensor output level, improve intrinsic safety characteristic；This invention simplifies button and its knots of keyboard
Structure reduces installation complexity, convenient for safeguarding and replacing and extend button and its service life of keyboard.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Description of the drawings
Fig. 1 is the structure diagram of the intrinsic safety keyboard of the prior art；
Fig. 2 is the explosion-proof intrinsic safety type button of one embodiment of the invention and its structure diagram of keyboard.
In figure, 10- blocks；11- cylinders；12- springs；13- stop nuts；14- mechanical keys；15- wiring boards；30- shells
Body；31- first baffles；32- second baffles；33- blocks；34- cylinders；35- springs；36- magnet；37- Hall sensors；38-
Wiring board.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the present invention
The mode of applying is explained in detail.
As shown in Fig. 2, explosion-proof intrinsic safety type button, including housing 30, first baffle 31, second baffle 32, button, spring 35
With wiring board 38, the wherein cylinder 34 of button extends outward to form block 33, and the bottom end outward bending of block 33 from top, curved
Folding part is connected to the inside of first baffle 31 for being acted in non-pressing keys by elastic force；Spring 35 is socketed on cylinder 34,
One end is connected in block 33, and the other end is connected to the upper surface of second baffle 32；The bottom of cylinder 34 is provided with magnet 36, presses
When pressing key, cylinder 34 is connected to the upper surface of housing 30 across second baffle 32, with the wiring board positioned at 30 opposite side of housing
The position of Hall sensor 37 on 38 is corresponding.In the present embodiment, button and wiring board 38 by housing 30 carry out physics every
From the Hall sensor 37 on button and wiring board 38 is located at the corresponding position of 30 both sides of housing；When pressing key instantly, cylinder 34
The magnet 36 of bottom senses changes of magnetic field so as to change output level close to Hall sensor 37, Hall sensor 37；Work as pine
During open button, button returns to original state under the elastic force effect of spring 35.
In one embodiment of the invention, when the bottom end of cylinder 34 is connected to the upper surface of housing 30, bending part abuts
In the upper surface of second baffle 32, the top of block 33 is concordant with the upper surface of first baffle 31.In the design, bending part abuts
In the upper surface of the second baffle 32, on the one hand play the role of limiting, the bottom end of another aspect cooperation cylinder 34 is supported
It is connected on the upper surface of housing 30.
In one embodiment of the invention, magnet 36 is embedded in the bottom of cylinder 34, and equal with the bottom of cylinder 34
Together.In the design, magnet 36 is connected with the mode that cylinder 34 is interference fit, plays the role of fastening magnet 36.
In one embodiment of the invention, cylinder 34 is hollow structure.In the design, 34 convenience of cylinder of hollow structure
Mold and be conducive to maintain the uniformity of 34 structure of cylinder.
In one embodiment of the invention, housing 30 is groove structure, and first baffle 31 and second baffle 32 are located at recessed
In slot, and the upper surface of first baffle 31 and the top flush of housing 30.In the design, first baffle 31 and second baffle 32
Mode for detachable installation is arranged in the groove of housing 30, can be that first baffle 31 and second baffle 32 are fixed and connected
It connects, first baffle 31 is fixed by screws on housing 30, and but not limited to this.
In one embodiment of the invention, one end of spring 35 is fixedly connected in block 33, and the other end is fixedly connected
In the upper surface of second baffle 32.The design is the stability in order to increase the connection of spring 35, so as to ensure key press process
Stability.
In one embodiment of the invention, block 33 is mutually fitted through first baffle 31 and with the shape of first baffle 31
Match；Cylinder 34 is adapted through second baffle 32 and with the shape of second baffle 32.In the design, the shape of block 33 can be
Rectangle, circle, ellipse or other any structures, and the through-hole of respective shapes is set on first baffle 31, between block 33
Gap coordinates.The shape of cylinder 34 can be rectangle, circle, ellipse or other any structures, and be set on second baffle 32 corresponding
The through-hole of shape, with 34 clearance fit of cylinder.
The present invention also provides explosion-proof intrinsic safety type keyboards, use explosion-proof intrinsic safety type button of the present invention.
In one embodiment of the invention, magnetic key and Hall sensor 37 are physically isolated and one by housing 30
One corresponds to arrangement, plays isolation explosion-proof.
In one embodiment of the present of invention, first baffle 31, second baffle 32, housing 30 and wiring board 38 pass through structural member
It is assembled together.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of the claims
Subject to.
Claims (8)
1. explosion-proof intrinsic safety type button, which is characterized in that including housing, first baffle, second baffle, button, spring and wiring board,
The cylinder of wherein described button extends outward to form block from top, and the bottom end outward bending of the block, bending part are used for
The inside of the first baffle is connected to by elastic force effect when not pressing the button；The spring is socketed in the cylinder
On, one end is connected in the block, and the other end is connected to the upper surface of the second baffle；The bottom of the cylinder is provided with
Magnet, when pressing the button, the cylinder passes through the second baffle to be connected to the upper surface of the housing, and positioned at described
The position of Hall sensor on the wiring board of housing opposite side is corresponding.
2. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that the bottom end of the cylinder is connected to the shell
During the upper surface of body, the bending part is connected to the upper surface of the second baffle, the top of the block and the first gear
The upper surface of plate is concordant.
3. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that the magnet is embedded in the bottom of the cylinder
Portion, and with the bottom flush of the cylinder.
4. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that the cylinder is hollow structure.
5. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that the housing is groove structure, described the
One baffle and the second baffle are located in groove, and the upper surface of the first baffle and the top flush of the housing.
6. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that one end of the spring is fixedly connected on institute
It states in block, the other end is fixedly connected on the upper surface of the second baffle.
7. explosion-proof intrinsic safety type button according to claim 1, which is characterized in that the block through the first baffle and
It is adapted with the shape of the first baffle；The cylinder is mutually fitted through the second baffle and with the shape of the second baffle
Match.
8. explosion-proof intrinsic safety type keyboard, which is characterized in that including the explosion-proof intrinsic safety any in claim 1 to claim 7
Type button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463921.1A CN108199706B (en) | 2017-12-28 | 2017-12-28 | Explosion-proof intrinsic safety type key and keyboard thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711463921.1A CN108199706B (en) | 2017-12-28 | 2017-12-28 | Explosion-proof intrinsic safety type key and keyboard thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108199706A true CN108199706A (en) | 2018-06-22 |
| CN108199706B CN108199706B (en) | 2021-02-23 |
Family
ID=62585575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711463921.1A Active CN108199706B (en) | 2017-12-28 | 2017-12-28 | Explosion-proof intrinsic safety type key and keyboard thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108199706B (en) |
Citations (12)
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|---|---|---|---|---|
| CN2391962Y (en) * | 1999-10-13 | 2000-08-16 | 冯文佳 | Push key type puzzle anti-theft lock |
| JP3335280B2 (en) * | 1996-09-10 | 2002-10-15 | 新晃電機株式会社 | Pushbutton switch and pushbutton switch device using the pushbutton switch |
| CN2518211Y (en) * | 2002-01-16 | 2002-10-23 | 游聪谋 | Switch structure able to regulate resilience |
| CN2561076Y (en) * | 2002-06-04 | 2003-07-16 | 达方电子股份有限公司 | Key cap with multi-layer structure |
| CN2672833Y (en) * | 2003-12-05 | 2005-01-19 | 张圣光 | Double push-buttom type on-and-off switch |
| US20080128252A1 (en) * | 2004-11-11 | 2008-06-05 | Joerg Meyer | Actuating Device with Push Buttons |
| CN202217604U (en) * | 2011-09-28 | 2012-05-09 | 机械工业第三设计研究院 | Energy-saving illumination switch with fire-fighting forcible startup function |
| CN102473543A (en) * | 2009-07-29 | 2012-05-23 | 伊莱克斯家用产品股份有限公司 | Push button switch assembly |
| CN203617183U (en) * | 2013-12-04 | 2014-05-28 | 湖南威铭能源科技有限公司 | Waterproof keyboard of intelligent water meter |
| CN204596682U (en) * | 2015-04-27 | 2015-08-26 | 马鞍山市牛魔王科技发展有限公司 | A kind of insertion type Multifunctional electromagnetic shielding keyboard |
| CN106910657A (en) * | 2017-04-10 | 2017-06-30 | 合肥梦飞电器有限公司 | Two-way button |
| CN206595180U (en) * | 2017-04-11 | 2017-10-27 | 东莞市凯龙硅胶制品有限公司 | A kind of macromolecule silica gel electronic key |
-
2017
- 2017-12-28 CN CN201711463921.1A patent/CN108199706B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3335280B2 (en) * | 1996-09-10 | 2002-10-15 | 新晃電機株式会社 | Pushbutton switch and pushbutton switch device using the pushbutton switch |
| CN2391962Y (en) * | 1999-10-13 | 2000-08-16 | 冯文佳 | Push key type puzzle anti-theft lock |
| CN2518211Y (en) * | 2002-01-16 | 2002-10-23 | 游聪谋 | Switch structure able to regulate resilience |
| CN2561076Y (en) * | 2002-06-04 | 2003-07-16 | 达方电子股份有限公司 | Key cap with multi-layer structure |
| CN2672833Y (en) * | 2003-12-05 | 2005-01-19 | 张圣光 | Double push-buttom type on-and-off switch |
| US20080128252A1 (en) * | 2004-11-11 | 2008-06-05 | Joerg Meyer | Actuating Device with Push Buttons |
| CN102473543A (en) * | 2009-07-29 | 2012-05-23 | 伊莱克斯家用产品股份有限公司 | Push button switch assembly |
| CN202217604U (en) * | 2011-09-28 | 2012-05-09 | 机械工业第三设计研究院 | Energy-saving illumination switch with fire-fighting forcible startup function |
| CN203617183U (en) * | 2013-12-04 | 2014-05-28 | 湖南威铭能源科技有限公司 | Waterproof keyboard of intelligent water meter |
| CN204596682U (en) * | 2015-04-27 | 2015-08-26 | 马鞍山市牛魔王科技发展有限公司 | A kind of insertion type Multifunctional electromagnetic shielding keyboard |
| CN106910657A (en) * | 2017-04-10 | 2017-06-30 | 合肥梦飞电器有限公司 | Two-way button |
| CN206595180U (en) * | 2017-04-11 | 2017-10-27 | 东莞市凯龙硅胶制品有限公司 | A kind of macromolecule silica gel electronic key |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108199706B (en) | 2021-02-23 |
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