CN201548263U - Gas meter with double-display mode - Google Patents
Gas meter with double-display mode Download PDFInfo
- Publication number
- CN201548263U CN201548263U CN2009202001732U CN200920200173U CN201548263U CN 201548263 U CN201548263 U CN 201548263U CN 2009202001732 U CN2009202001732 U CN 2009202001732U CN 200920200173 U CN200920200173 U CN 200920200173U CN 201548263 U CN201548263 U CN 201548263U
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- gas
- hall element
- meter
- character wheel
- gas meter
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Abstract
The utility model belongs to the field of instruments, in particular to a gas meter. The gas meter with a double-display mode comprises a meter body, wherein a print wheel is arranged in the meter body, the print wheel is arranged on a print wheel support, a magnetic steel is arranged on the print wheel, a Hall element is fixed on the print wheel support, the Hall element is connected with a single chip microcomputer system for metering gas, and the single chip microcomputer system is connected with a display module. The gas meter adopts the double-display mode, reserves the print wheel display of a mechanical gas meter, simultaneously increases liquid crystal display, accurately achieves the consistency of a mechanical counter and an electronic counter, can simultaneously displays various gas information, and is convenient for users to manage gas use.
Description
Technical field
The utility model belongs to the instrument field, particularly a kind of gas meter, flow meter.
Background technology
Gas meter, flow meter is a kind of metering device that uses combustion gas that is used to measure.Common gas meter, flow meter connected mode is that an end connects gas pipeline, and the other end is connected on the kitchen range, and when the user used combustion gas, combustion gas entered kitchen range from gas pipeline through gas meter, flow meter, connecting tube; General diaphragm gas meter is by being arranged on the mechanical type meter in the gas meter, flow meter to the metering of using combustion gas, it is combustion gas promotes to be arranged on the gear train drive mechanical counter in the gas meter, flow meter through gas meter, flow meter time the character wheel rotation, when combustion gas stops to flow, character wheel rotates and also stops operating, finally be to determine what of gas consumption by the numeral of the demonstration on the counter, but this gas meter, flow meter can only explicit user have been installed total gas consumption since the gas meter, flow meter, have no idea to show the flow when gas meter, flow meter is flat, other combustion gas information such as the use amount of every month and storage, it is not too convenient that the user management combustion gas is used.
Summary of the invention
The utility model provides a kind of character wheel of existing mechanical gas table to show that electronic display screen displays is arranged again at the problems referred to above, can show multiple combustion gas information, makes things convenient for the gas meter, flow meter of two display modes of user management combustion gas use.
The technical solution of the utility model is: the gas meter, flow meter of a kind of pair of display mode, comprise the table body, be provided with character wheel in the table body, character wheel is arranged on the character wheel support, described character wheel is provided with magnet steel, be fixed with Hall element on the described character wheel support, Hall element connects the Single Chip Microcomputer (SCM) system that is used for metering gas, and Single Chip Microcomputer (SCM) system connects display module.
As preferably, described Hall element is 2, is installed in the both sides of character wheel respectively; Adopt two Hall elements anti-shake, anti-interference.
As preferably, the surface of described Hall element and the diameter of character wheel are perpendicular; Can make magnetic field to greatest extent by the surface of Hall element like this, triggering precision is improved.
As preferably, described Single Chip Microcomputer (SCM) system is connected with warning system; Output alarm signal when single-chip microcomputer collects undesired signal forces to close valve.
As preferably, described display module adopts LCDs.
The utility model gas meter, flow meter adopts two display modes, the character wheel that has promptly kept the mechanical gas table shows, has increased liquid crystal display simultaneously, has accurately realized the consistency of reading of mechanical counter and electronic counter, simultaneously can show multiple combustion gas information, make things convenient for that the user management combustion gas uses gas meter, flow meter; And the two display modes of gas meter, flow meter employing Hall element realization, Hall element has many advantages, their sound construction, and volume is little, in light weight, the life-span is long, and is easy for installation, and power consumption is little, frequency height (can reach 1MHZ), vibration resistance, the pollution or the corrosion of not being afraid of dust, greasy dirt, steam and salt fog etc.
Description of drawings
Fig. 1 is the Hall effect schematic diagram;
Fig. 2 is the installation site synoptic diagram of magnet steel on character wheel;
Fig. 3 is the Hall element installation site synoptic diagram of device on character wheel of winning the confidence;
Fig. 4 is the hall element output signal oscillogram.
Embodiment
Hall effect is the theoretical foundation that the Hall technology is used, as shown in Figure 1, when the wafer that is connected with little electric current placed magnetic field, the charge carrier in the semiconductor was deflected by the effect of Lorentz force, make the semiconductor both sides produce electric potential difference, this electric potential difference is Hall voltage U
H, U
HWith magnetic induction density B and Control current I
CBe directly proportional, formula (1) relation arranged through theoretical calculate,
U
H＝(R
H/d)×B×I
C (1)
In the formula: B is a magnetic induction density; I
CBe Control current; R
HBe Hall coefficient, by the character decision of semiconductor material, R
H=μ * ρ, promptly Hall coefficient equals the product of the electricalresistivity and the electron mobility μ of Hall plate material, and d is a semiconductor thickness.
In the formula (1), if the retentive control electric current I
CConstant,, can extrapolate the size of magnetic induction density under certain condition by measuring Hall voltage, set up getting in touch of magnetic field and voltage signal thus.According to this relational expression, people have developed the semiconductor devices that is used to measure magnetic field, i.e. Hall element.
As shown in Figure 2, magnet steel 3 is fixed on the character wheel 4, if the accuracy requirement of reading is 0.1, then magnet steel is installed on 0.01 character wheel; If the accuracy requirement of reading is 0.01, then magnet steel is installed on 0.001 character wheel, by that analogy; Fig. 2 is the mode of gas meter, flow meter 0.01 counting.
As shown in Figure 3, magnet steel 3 is installed on the character wheel 4, character wheel 4 is installed on the character wheel support 5, Hall element support 6,7 is set respectively on the character wheel support 5, Hall element is installed on the Hall element support 6,7, Hall element 1 is arranged on the Hall element support 6 of character wheel 4 tops, Hall element 2 is arranged on the character wheel 4 below Hall element supports 7, the surface of Hall element 1,2 and the diameter of character wheel 4 are perpendicular, can make magnetic field to greatest extent by the surface of Hall element like this, triggering precision is improved; The signal of 2 groups of Hall element collections is exported to single-chip microcomputer.When the user uses gas, gear 8 drives character wheel 4 and rotates, magnet steel 3 on the character wheel 4 rotates with character wheel, magnet steel rotates 1 circle, be that magnet steel 3 is when turning over the magnetic induction scope of Hall element 1 and Hall element 2 successively, Hall element is adhesive successively, single-chip microcomputer is judged counting 0.01 according to the signal of this variation, and can calculate gas meter, flow meter current flow when flat according to the frequency that changes, just realized with gas meter, flow meter flow when flat by gathering this count signal, the accumulation use amount, information such as storage are informed to the user in the mode of liquid crystal display.
As shown in Figure 4, Hall element output high level when static, when magnet steel turned to Hall element adhesive scope, Hall element changed output low level.So the waveform of Hall element output is a prescription ripple signal.When flow was constant, the waveform of Hall element output was one group of periodically variable square wave.
Claims (5)
1. the gas meter, flow meter of two display modes, comprise the table body, be provided with character wheel in the table body, character wheel is arranged on the character wheel support, it is characterized in that described character wheel is provided with magnet steel, be fixed with Hall element on the described character wheel support, Hall element connects the Single Chip Microcomputer (SCM) system that is used for metering gas, and Single Chip Microcomputer (SCM) system connects display module.
2. the gas meter, flow meter of a kind of pair of display mode according to claim 1 is characterized in that, described Hall element is 2, is installed in the both sides of character wheel respectively.
3. the gas meter, flow meter of a kind of pair of display mode according to claim 1 and 2 is characterized in that, the surface of described Hall element and the diameter of character wheel are perpendicular.
4. the gas meter, flow meter of a kind of pair of display mode according to claim 3 is characterized in that, described Single Chip Microcomputer (SCM) system is connected with warning system.
5. the gas meter, flow meter of a kind of pair of display mode according to claim 4 is characterized in that, described display module adopts LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202001732U CN201548263U (en) | 2009-11-12 | 2009-11-12 | Gas meter with double-display mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202001732U CN201548263U (en) | 2009-11-12 | 2009-11-12 | Gas meter with double-display mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548263U true CN201548263U (en) | 2010-08-11 |
Family
ID=42603438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202001732U Expired - Fee Related CN201548263U (en) | 2009-11-12 | 2009-11-12 | Gas meter with double-display mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201548263U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346062A (en) * | 2010-10-09 | 2012-02-08 | 上海复展照明科技有限公司 | Method and system for adjusting counting deviation by using integrated circuit (IC) card |
| CN102494729A (en) * | 2011-11-25 | 2012-06-13 | 杭州先锋电子技术股份有限公司 | Intelligent gas meter metering device and signal processing system |
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN111954794A (en) * | 2019-10-31 | 2020-11-17 | 欧健 | Gas meter with data transmission function |
| CN114493927A (en) * | 2022-04-07 | 2022-05-13 | 山东拙诚智能科技有限公司 | Method for guaranteeing safe operation of gas by setting flow increment forbidden interval |
| CN114673932A (en) * | 2022-04-07 | 2022-06-28 | 威海同天信息科技有限公司 | Method for guaranteeing gas safety by setting flow forbidden interval |
-
2009
- 2009-11-12 CN CN2009202001732U patent/CN201548263U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346062A (en) * | 2010-10-09 | 2012-02-08 | 上海复展照明科技有限公司 | Method and system for adjusting counting deviation by using integrated circuit (IC) card |
| CN102494729A (en) * | 2011-11-25 | 2012-06-13 | 杭州先锋电子技术股份有限公司 | Intelligent gas meter metering device and signal processing system |
| CN102620790A (en) * | 2012-03-21 | 2012-08-01 | 山东潍微科技股份有限公司 | Counting device for controlling turn-on and turn-off of singlechip by using sensing signal |
| CN111954794A (en) * | 2019-10-31 | 2020-11-17 | 欧健 | Gas meter with data transmission function |
| CN114493927A (en) * | 2022-04-07 | 2022-05-13 | 山东拙诚智能科技有限公司 | Method for guaranteeing safe operation of gas by setting flow increment forbidden interval |
| CN114673932A (en) * | 2022-04-07 | 2022-06-28 | 威海同天信息科技有限公司 | Method for guaranteeing gas safety by setting flow forbidden interval |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131112 |