CN1165768C

CN1165768C - Digital kilowatt-hour meter

Info

Publication number: CN1165768C
Application number: CNB011210923A
Authority: CN
Inventors: 尹熙兑
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-11
Filing date: 2001-06-11
Publication date: 2004-09-08
Anticipated expiration: 2021-06-11
Also published as: CN1391107A

Abstract

The present invention provides a mechanical digital electric meter. The inner part of a main body is provided with a wireless sending and receiving RF module used for storing data; one side surface of an analog type counter is provided with a switch sensor, and connecting terminals for checking telephone lines, which are installed on both sides of a connection part, are connected with the switch sensor; the connecting terminals for checking telephone lines are also connected with connecting terminals of the RF module so as to transfer a measurement value of the switch sensor to the RF module; a P coil installed at the upper part of a rotary disk is made into a double-coil with a primary coil and a secondary coil. Thus, the minimum voltage generated by the secondary coil of the P coil is provided by a power cable and is used as the power of the RF module.

Description

Digital kilowatt-hour meter

Technical field

The present invention relates to the mechanical type digital kilowatt-hour meter, more particularly, relate to simplify on the structure and be used for radio frequency (RF) module of wireless data transmission and in the side of analog counter switch sensor be set by installing so that utilize the minimum voltage that produces from the secondary coil that is arranged on the P coil in the digital kilowatt-hour meter electric power as the RF module in the inside of digital kilowatt-hour meter, can be through the mechanical type digital kilowatt-hour meter of portable mobile wireless telemetering device remote measurement.

Background technology

In being mainly used in the mechanical type digital kilowatt-hour meter of general family, P coil and C coil are connected by the importation supply and flow out by output in the supply path of electric current, and the revolving force of rotating circular disk is to produce by the magnetic flux that P and C coil are set up, and the revolution of this rotating circular disk is to represent such as the coefficient unit of simulative counter by using.In order to check this traditional mechanical type digital kilowatt-hour meter, meter reading person will directly understand fully the count value of installation digital kilowatt-hour meter at home with his eyes.Therefore, exist meter reading person to want a family to connect the inconvenience of a tame accessing with the position of affirmation digital kilowatt-hour meter and coefficient unit.

Summary of the invention

Therefore, the present invention is directed to the one or more limitation of eliminating prior art basically and the digital kilowatt-hour meter of shortcoming.

Fundamental purpose of the present invention is, a kind of digital kilowatt-hour meter is provided, it not only can use the RF module and need not the particular power source device, and can make the remote measurement inspection effective by its use, this digital kilowatt-hour meter is provided in the following manner: analog counter one side at common mechanical type digital kilowatt-hour meter is provided with switch sensor, and the RF module is installed in its main body, is used to receive from the signal of this switch sensor and with its storage; Wherein, at the concerned power that is used to drive the RF module, the P coil is made twin coil and is used as the electric power of RF module from the minimum voltage of the secondary generation of P coil.

Containedly embodiments of the invention have been described, and have been used for illustrating principle of the present invention with describing in order to provide further understanding of the present invention and to be incorporated in this instructions and to constitute its a part of accompanying drawing.

Description of drawings

In the accompanying drawings:

Fig. 1 describes according to decomposition diagram of the present invention;

Fig. 2 represents exemplary elevation views of the present invention;

Fig. 3 provides the block scheme of expression circuit structure of the present invention;

Fig. 4 illustrates the exemplary plan view of expression P coil of the present invention.

Embodiment

To at length quote most preferred embodiment of the present invention now, the example will be described in the accompanying drawings.

Importation 22 and output 24 are assembled together with the coupling part 20 of main body 10 bottoms, and in body interior, rotating circular disk 30 have been installed, and are provided with P coil 40 on the top of rotating circular disk 30, are provided with C coil 50 in the bottom of rotating circular disk 30.In this structure and in the process that the electric current of supplying with by importation 22 flows out by output 24, in P coil 40 and C coil 50, set up magnetic flux, to rotate rotating circular disk 30 and to carry out the coefficient measurement with the revolution of 60 pairs of rotating circular disks 30 of analog counter.In common mechanical type digital kilowatt-hour meter, the RF module 70 that is used to store data and wireless transmission and reception is installed in main body 10 inside, and switch sensor 80 is arranged on the side of analog counter 60, the latter has connected telephone wire and has checked splicing ear 26, and described telephone wire checks that splicing ear 26 is installed in the both sides that are arranged at the coupling part 20 between switch sensor 80 and main body 10 bottoms.The splicing ear 72 that in splicing ear 26, has also connected RF module 70, so that the measured value of switch sensor 80 is passed to RF module 70, in addition, the P coil 40 that is installed in rotating circular disk 30 tops is made the twin coil that is wound with primary coil 40a and secondary coil 40b, thereby by power cable 42, provide minimum voltage that the secondary coil 40b by P coil 40 produces electric power as RF module 70.

In the present invention based on this structure, in the process that the electric current that the electric wire of the importation 22 by being connected to the mechanical type digital kilowatt-hour meter is supplied with flows out by the electric wire that is connected to output 24, at the P coil 40 that is installed in rotating circular disk 30 tops be installed in the C coil 50 of rotating circular disk 30 bottoms and set up magnetic flux, to rotate rotating circular disk 30.Here switch sensor 80 side that is installed in analog counter 60 is used for the revolution counter to rotating circular disk 30, and in each of the coefficient dish of analog counter 60 is changeed, magnet to the side that is fixed on the coefficient dish is reacted, thereby sends pulse signal.Sort signal is passed to the telephone wire of installing in the both sides of the coupling part 20 of main body 10 bottoms that connect sensor and checks splicing ear 26.Described telephone wire checks that splicing ear 26 is also connected to the splicing ear 72 of RF module 70, so the splicing ear 72 of the pulse signal that switch sensor 80 spreads out of by RF module 70, utilize telephone wire to check that splicing ear 26 sends to

RF module

70, and 70 pairs of signals of receiving of RF module are handled and with it as data storage.

When the coefficient value of counter 60 is stored in the RF module 70 as mentioned above; The meter reading personnel of the check dight of need not calling watt-hour meter is directly seeing analog counter 60 in the digital electric meter, near the portable radiotelephone measurement mechanism of utilization this digital kilowatt-hour meter, send the signal of request msg transmission to RF module 70, then, RF module 70 receives this signal, and send subsequently, the data of the coefficient value of analog counter 60 with storage with wireless mode.Thus, described portable radiotelephone measurement mechanism receives this signal, thereby, not only with the in-plant wireless mode remote measurement of distance digital kilowatt-hour meter the coefficient value of digital kilowatt-hour meter, that is, the use amount of electricity, and when telephone wire is connected to telephone wire inspection splicing ear 26, even, check the coefficient value of analog counter 60 by the pulse signal of telephone wire from distance reception switch sensor 80.

Simultaneously, in order to be used to receive RF module 70 work with the signal of storage switch sensor 80, need electric power.For this reason, P coil 40 is configured to twin coil, wherein be wound with insulator between primary coil 40a and the secondary coil 40b, P coil 40 is provided, utilize the electric current that flows out through output 24 from the importation 22 of main body 10 voltage, set up magnetic flux to rotate rotating circular disk 30 with rotating circular disk 30.In addition, primary coil 40a plays the effect of setting up magnetic flux makes rotating circular disk 30 have revolving force, and the secondary coil 40b that is wrapped in the outside of primary coil 40a separately produces minimum voltage, thereby by these voltages of power cable 42 supply as being installed in the electric power of the RF module 70 of main body 10 inside, and guarantee in addition under the situation that does not have special supply unit this electric power can make 70 work of RF module.

As mentioned, according to the present invention, can even under the situation that does not have special supply unit, install and use RF module 70, thereby utilize the portable radiotelephone measurement mechanism to realize remote measurement.Therefore, have following effect, not only can carry out inspection work more simply, and because the designs simplification of digital kilowatt-hour meter makes that the production of digital kilowatt-hour meter is easier, production cost is lower, throughput rate is higher the consumption of electricity.

It will be obvious to those skilled in the art that, as long as without prejudice to the spirit and scope of the present invention, can do various controls and variation in the present invention, therefore, the invention is intended to comprise, as long as they are in the scope of appended claims and equivalents thereof to various controls of the present invention and variation.

Claims

1. digital kilowatt-hour meter, in well-known mechanical type digital kilowatt-hour meter, the coupling part of importation and output and lower body part is assembled together, and inside in described main body, rotating circular disk has been installed, be provided with the P coil on the top of described rotating circular disk, be provided with the C coil in the bottom of described rotating circular disk, in this structure and in the process that the electric current of supplying with by described importation flows out by described output, in described P coil and described C coil, set up magnetic flux, so that rotate described rotating circular disk and by analog counter the revolution of described rotating circular disk carried out coefficient and measure, described digital kilowatt-hour meter is characterised in that

The RF module that is used to store data and wireless transmission and reception is installed in described body interior; A side at described analog counter is provided with switch sensor, described switch sensor has connected telephone wire and has checked splicing ear, and described telephone wire checks that splicing ear is installed in the both sides that are arranged at the described coupling part between described switch sensor and the described lower body part; Check in the splicing ear at described telephone wire, also connected the splicing ear of described RF module, so that the measured value of described switch sensor is passed to described RF module; And the P coil that is installed in described rotating circular disk top makes the twin coil that is wound with primary coil and secondary coil, thereby provides minimum voltage that the secondary coil by described P coil the produces electric power as described RF module by power cable.