CN2225666Y

CN2225666Y - Digital water meter

Info

Publication number: CN2225666Y
Application number: CN 94210324
Authority: CN
Inventors: 任洪周
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-04-26
Filing date: 1994-04-26
Publication date: 1996-04-24
Anticipated expiration: 2004-04-26

Abstract

The utility model relates to a digital water meter, which is composed of a case body, a water flow generate electricity and flow sensor, a microprocessor chip, a micro rechargeable battery and a circuit board of a nixie tube. The utility model solves the problems of the digital display of water flow and uninterrupted power supply under the condition of no need of additionally supplying or replacing a power supply, thus ensuring the water meter can normal operate in a long time, thereby, the utility model becomes a renewal product of the mechanical type water meter.

Description

Digital water meter

The utility model is a kind of new electronic product.Mainly solved industry and domestic water meter and shown and the uninterrupted power supply problem, guaranteed water meter operate as normal use for a long time, made it to become the renewal product of mechanical type water meter in the numeral that does not need to add or change discharge under the condition of power supply.

Industry and domestic water meter all are the mechanical type water meters at present, and water consumption is accumulated indication by one group of pointer gauge, because data are not directly perceived, it is cumbersome to check meter; The water meter that enterprises and institutions use often is installed on the underground pipeline, brings inconvenience for the work of checking meter; The mechanical type water meter can not directly be exported the water consumption electric signal, adopts computer monitor and control work to cause difficulty also for the urban water supply system.Therefore, development new digital formula water meter substitutes the inevitable requirement that traditional mechanical type water meter is the economic technology development.For many years, people are devoted to develop digital water meter, and the existing model machine that has comes out, but not perfect on performance, have not yet to see the report and the data of success.

The utility model provides a kind of new digital formula water meter, and the numeral that it has mainly solved discharge under the condition that need not add or change power supply shows and the uninterrupted power supply problem, thereby guaranteed water meter operate as normal use for a long time.

Invention main points of the present utility model are: the wiring board that this digital water meter is held concurrently flow sensor and microprocessor chip, miniature rechargeable battery and charactron be housed by the generating of housing, current combines.

The housing of this digital water meter comprises that shell 1, face glass 2, table cover 3, all can adopt standard machinery formula water meter (as rotor water gauge) identical pattern and material to make.

The current generatings flow sensor of holding concurrently comprises and is installed in same impeller 5 and rotor permanent magnet 6 (they are all under water) on the rotation axis 4; Stator coil 7 usefulness resin extenders 8 are encapsulated in the seal isolation plate 9; Having externally threaded metal platen 10 screws and is pressed on the seal isolation plate 9; Two leads that stator coil 7 is drawn can pass from the center pit of metal platen 10 and upwards transmit transducing signal and simultaneously can be to battery charge.Rotation axis 4, impeller 5 and seal isolation plate 9 all adopt engineering plastics to make.

Microprocessor chip, miniature rechargeable battery and eight digit number sign indicating number pipe 11 are housed on the wiring board 12.Microprocessor chip can be chosen on market, also can entrust chip production producer to make specially.Miniature rechargeable battery should be selected the reliable high capacity rechargeable battery of performance for use, to guarantee long-term uninterrupted power supply.

The utility model is compared with the mechanical type water meter, has the following advantages:

(1) water consumption intuitive display, accurate is checked meter conveniently.

(2) digital water meter can stay and establish signal output, can directly outwards export the discharge transducing signal, receive and amplify by secondary instrument, not only the meter reading personnel need not jump to again and go in the hole to check meter, and provides the most basic condition for the computer monitor and control of realizing water system.

Accompanying drawing: digital water meter synoptic diagram

Sequence number is among the figure:

Shell 1, face glass 2, table covers 3, rotation axis 4, impeller 5, rotor permanent magnet 6, stator coil 7, resin extender 8, seal isolation plate 9, metal platen 10, charactron 11, wiring board 12.

As shown in drawings, when having current to pass through in the water meter, impeller 5, rotation axis 4 and rotor permanent magnet 6 are rotated together, at this moment in stator coil 7, promptly can produce ac signal with certain umber of pulse, charge towards the miniature rechargeable battery on the wiring board 12 by lead one, microprocessor can be gathered, handle the sensing electric signal simultaneously, is converted into the discharge data storage and also can shows on charactron.Can guarantee not lose not disorderly owing to realized uninterrupted power supply, the discharge data of storage, thereby guarantee water meter operate as normal use for a long time.

Claims

1, a kind of new digital formula water meter, it is made up of critical pieces such as housing 1, rotation axis 4, impeller 5, rotor permanent magnet 6, stator coil 7, resin extender 8, seal isolation plate 9, metal platen 10, charactron 11, wiring boards 12, it is characterized in that: the wiring board that this digital water meter is held concurrently flow sensor and microprocessor chip, miniature rechargeable battery and charactron be housed by the generating of housing, current combines.

2, by the described digital water meter of claim 1, it is characterized in that: the current generating flow sensor of holding concurrently is by rotation axis 4, impeller 5, rotor permanent magnet 6, stator coil 7, resin extender 8, seal isolation plate 9, has externally threaded metal platen 10 and combine.

3, by the described digital water meter of claim 1, it is characterized in that: impeller 5, rotor permanent magnet 6 are contained on the same rotation axis 4.

4, by the described digital water meter of claim 1, it is characterized in that: stator coil 7 usefulness resin extenders 8 are encapsulated in the seal isolation plate 9; Having externally threaded metal platen 10 screws and is pressed on the seal isolation plate 9.

5, by the described digital water meter of claim 1, it is characterized in that: by the ac signal that produces in the stator coil 7 with certain umber of pulse, by microprocessor collection, processing, storage, and through the charactron demonstration, simultaneously again to miniature rechargeable battery charging.