CN204464112U - A kind of all-closed explosion insulated button - Google Patents
A kind of all-closed explosion insulated button Download PDFInfo
- Publication number
- CN204464112U CN204464112U CN201520191501.2U CN201520191501U CN204464112U CN 204464112 U CN204464112 U CN 204464112U CN 201520191501 U CN201520191501 U CN 201520191501U CN 204464112 U CN204464112 U CN 204464112U
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- CN
- China
- Prior art keywords
- magnetic
- button
- bipolarity
- induction part
- signal
- Prior art date
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- Expired - Fee Related
Links
- 238000004880 explosion Methods 0.000 title claims abstract description 12
- 230000006698 induction Effects 0.000 claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 230000008054 signal transmission Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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- Push-Button Switches (AREA)
Abstract
The utility model discloses a kind of all-closed explosion insulated button, comprise flameproof enclosure, bipolarity magnetic induction part, signal-processing board, spring, magnetic button, pressure ring, wherein bipolarity magnetic induction part is connected with signal-processing board and is all located at flameproof enclosure side; Magnetic button is arranged in the groove of flameproof enclosure opposite side; Magnetic key inside is provided with magnet steel; Spring to be located between bottom portion of groove and magnetic button for magnetic by reciprocating motion under bond energy outside power and spring action, thus makes bipolarity magnetic induction part place produce the magnetic line of force to overturn and produce omicronff signal transmission in signal-processing board, and then completes switching function; Pressure ring is located at the opening part of groove for blocking magnetic button.The utility model adopts bipolarity magnetic induction part as magnet-sensitive element, rely on the magnetic circuit direction formed during magnet steel motion to convert switching function, totally-enclosed gapless, fail safe, reliability, accuracy are higher, lighter than mechanical key when using simultaneously, operation of being more convenient for.
Description
Technical field
The utility model relates to a kind of press-key structure, especially a kind of all-closed explosion insulated button.
Background technology
In the equipment such as conveying, processing, storage of oil gas and various industrial chemicals, need to use instrument and meter test parameters such as flow, pressure, temperature and control, owing to being in explosive atmosphere, the requirement of explosion-proof specification must be met.But the operation push-button of the existing instrument and meter used in explosive atmosphere; owing to there is mechanical movement; in the equipment protected by flameproof enclosure " d "; certain explosion-insulation surface must be met require and must take measures to prevent the gap during normal use caused because wearing and tearing from increasing or adopting intrinsic safe explosion-proof measure; add technical difficulty and the cost of realization; the button of Magnetic isolation so be born; utilize the mutual exclusion characteristic of same polarity magnet steel, the power of button is delivered on inner sensitive switch and realizes switching function.But owing to being the mechanical movement carrying out transmitting force by the magnetic line of force, easily because magnet steel magnetic force weaken or the loose contact of contact affects reliability and the accuracy of product.
Utility model content
For solving above-mentioned the problems of the prior art, the utility model provides a kind of all-closed explosion insulated button.
The technical solution adopted in the utility model is: a kind of all-closed explosion insulated button, comprises flameproof enclosure, bipolarity magnetic induction part, signal-processing board, spring, magnetic button, wherein:
Described bipolarity magnetic induction part is connected with signal-processing board and is all located at flameproof enclosure side;
Described magnetic button is arranged in the groove of the opposite side of flameproof enclosure;
Described magnetic key inside is provided with magnet steel;
Described spring is located to make described magnetic move back and forth in a groove by under bond energy outside power and spring action between bottom portion of groove and magnetic button, thus makes the bipolarity magnetic induction part place being arranged in flameproof enclosure opposite side produce the upset of the magnetic line of force and produce omicronff signal transmission to signal-processing board.
Further, described bipolarity magnetic induction part is magnetoresistive transducer or Hall element.
Further, the slot opening place of described flameproof enclosure is also provided with for blocking magnetic button in order to avoid the pressure ring that drops out of magnetic button.
Further, the two poles of the earth of described magnet steel are provided with the pole shoe for improving magnetic circuit distribution.
Further, described magnetic button comprises magnetic key casing and magnetic button cap, and described magnetic key casing and magnetic button cap are combined into dismountable hollow structure.
Principle of the present utility model is: adopt bipolarity magnetic induction part as magnet-sensitive element, by explosion-resistant enclosure bipolarity magnetic induction part and magnetic button kept apart thus make to form enclosed construction in instrument, wherein bipolarity magnetic induction part is positioned at gauge internal, and magnetic button is located at gauge external, magnetic button moves back and forth under external force and spring action, thus the upset of the magnetic line of force is formed at bipolarity magnetic induction part place, mechanical movement signal is transformed in order to magnetic field variation signal, bipolarity magnetic induction part senses the upset of the magnetic line of force and then produces switching signal and be transferred to signal-processing board, thus realize switch control functions.
The beneficial effects of the utility model are:
1. the mechanical movement signal outside closed instrument is changed into inner magnetic field energizing signal by the utility model, and do not need direct Mechanical Contact can realize switch, controlling functions, more existing mechanical key is reliably safer.
2. the utility model uses bipolarity magnetic induction part as magnet-sensitive element, utilize it to the sensitiveness of magnetic direction, the magnetic line of force direction conversion formed when being moved by magnet steel is produced control signal, completes switching function, just can not lose effect because the magnetic of magnet steel weakens, thus reliability and accuracy are all higher than existing Magnetic isolation button;
3. the utility model is non-contact type key switch control inputs, and simpler than mechanical key structure, operability is stronger;
4. the utility model is provided with the pole shoe improving magnetic circuit distribution at the two poles of the earth of magnet steel, makes the magnetic induction of bipolarity magnetic induction part more responsive, accurate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-flameproof enclosure, 11-groove, 2-bipolarity magnetic induction part, 3-signal-processing board, 4-spring, 5-magnetic button, 51-magnetic key casing, 52-magnetic button cap, 6-pressure ring, 7-magnet steel, 8-pole shoe.
Embodiment
By reference to the accompanying drawings and embodiment the technical solution of the utility model is further illustrated.
As shown in Figure 1, the utility model comprises flameproof enclosure 1, bipolarity magnetic induction part 2, signal-processing board 3, spring 4, magnetic button 5, pressure ring 6, magnet steel 7, pole shoe 8, wherein:
Described bipolarity magnetic induction part 2 is connected with signal-processing board 3 and is all located at the side of flameproof enclosure 1, and described bipolarity magnetic induction part 2 is magnetoresistive transducer;
Described magnetic button 5 is arranged in the groove 11 of the opposite side of flameproof enclosure 1, and described magnetic button 5 comprises magnetic key casing 51 and magnetic button cap 52, and described magnetic key casing 51 and magnetic button cap 52 are combined into dismountable hollow structure.
The opening part of groove 11 is also provided with for blocking magnetic button 5 in order to avoid the pressure ring 6 that drops out of magnetic button 5;
Described magnetic button 5 inside is provided with magnet steel 7, and the two poles of the earth of magnet steel 7 are provided with the pole shoe 8 for improving magnetic circuit distribution;
Described spring 4 to be located at bottom groove 11 and between magnetic button 5 to make described magnetic button 5 can move back and forth in groove 11 under external force and spring 4 act on, thus make bipolarity magnetic induction part 2 place being arranged in flameproof enclosure 1 opposite side produce the upset of the magnetic line of force and produce omicronff signal transmission to signal-processing board 3.
The utility model adopts bipolarity magnetic induction part as magnet-sensitive element, and the magnetic button being built-in with magnet steel moves back and forth under the effect of external force and spring, thus produces magnetic line of force upset at bipolarity magnetic induction part place, thus completes switch control functions.The utility model adopts non-contact type key switch control inputs, totally-enclosed gapless, and fail safe, reliability, accuracy are all higher, more lighter than mechanical key when using simultaneously, operation of being more convenient for.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. an all-closed explosion insulated button, is characterized in that: comprise flameproof enclosure (1), bipolarity magnetic induction part (2), signal-processing board (3), spring (4), magnetic button (5), wherein:
Described bipolarity magnetic induction part (2) is connected with signal-processing board (3) and is all located at flameproof enclosure (1) side;
Described magnetic button (5) is arranged in the groove (11) of the opposite side of flameproof enclosure (1);
Described magnetic button (5) inside is provided with magnet steel (7);
Described spring (4) is located to make described magnetic button (5) can move back and forth in groove (1) under external force and spring (4) act between groove (11) bottom and magnetic button (5), thus makes bipolarity magnetic induction part (2) place being arranged in flameproof enclosure (1) opposite side produce the upset of the magnetic line of force and produce omicronff signal transmission to signal-processing board (3).
2. a kind of all-closed explosion insulated button as claimed in claim 1, is characterized in that: described bipolarity magnetic induction part (2) is magnetoresistive transducer or Hall element.
3. a kind of all-closed explosion insulated button as claimed in claim 1, is characterized in that: groove (11) opening part of described flameproof enclosure (1) is also provided with for blocking magnetic button (5) in order to avoid the pressure ring (6) that drops out of magnetic button (5).
4. a kind of all-closed explosion insulated button as claimed in claim 1, is characterized in that: the two poles of the earth of described magnet steel (7) are provided with the pole shoe (8) for improving magnetic circuit distribution.
5. a kind of all-closed explosion insulated button as claimed in claim 1, it is characterized in that: described magnetic button (5) comprises magnetic key casing (51) and magnetic button cap (52), described magnetic key casing (51) and magnetic button cap (52) are combined into dismountable hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520191501.2U CN204464112U (en) | 2015-03-31 | 2015-03-31 | A kind of all-closed explosion insulated button |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520191501.2U CN204464112U (en) | 2015-03-31 | 2015-03-31 | A kind of all-closed explosion insulated button |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464112U true CN204464112U (en) | 2015-07-08 |
Family
ID=53670962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520191501.2U Expired - Fee Related CN204464112U (en) | 2015-03-31 | 2015-03-31 | A kind of all-closed explosion insulated button |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464112U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130531A (en) * | 2016-08-12 | 2016-11-16 | 连云港远洋流体装卸设备有限公司 | Quantifying and loading controller magnetic control button |
| CN107017120A (en) * | 2017-05-18 | 2017-08-04 | 捷开通讯(深圳)有限公司 | A kind of electronic equipment and its key device |
| CN109599284A (en) * | 2018-11-29 | 2019-04-09 | 维沃移动通信有限公司 | A kind of key and terminal |
| CN111223701A (en) * | 2018-11-27 | 2020-06-02 | 光宝电子(广州)有限公司 | Key structure |
-
2015
- 2015-03-31 CN CN201520191501.2U patent/CN204464112U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106130531A (en) * | 2016-08-12 | 2016-11-16 | 连云港远洋流体装卸设备有限公司 | Quantifying and loading controller magnetic control button |
| CN107017120A (en) * | 2017-05-18 | 2017-08-04 | 捷开通讯(深圳)有限公司 | A kind of electronic equipment and its key device |
| CN111223701A (en) * | 2018-11-27 | 2020-06-02 | 光宝电子(广州)有限公司 | Key structure |
| US11670465B2 (en) | 2018-11-27 | 2023-06-06 | Lite-On Electronics (Guangzhou) Limited | Key structure |
| CN109599284A (en) * | 2018-11-29 | 2019-04-09 | 维沃移动通信有限公司 | A kind of key and terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |