CN2620279Y

CN2620279Y - Induction single phase electric energy meter capable of successive counting

Info

Publication number: CN2620279Y
Application number: CN 02254501
Authority: CN
Inventors: 翁兴祥; 黄桂祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-12
Filing date: 2002-09-12
Publication date: 2004-06-09
Anticipated expiration: 2012-09-12

Abstract

The utility model discloses an inductive single-phase electric energy meter that can reflect the accumulated electricity consumption as well as the electricity consumption for a certain period of time which is composed of a voltage element, a current element, an aluminum dish, a permanent magnet, a rotary shaft, two sets of identical worm and wheel-worm transmission mechanisms, an accumulated counting character wheel, a successive counting character wheel, a zeroizing key and a zeroized counting character wheel. When using the electricity, the aluminum dish drives the two sets of identical worms and wheel-worms to rotate by the same rotating speed as itself, the rotation of the two sets of worms and wheel-worms respectively drive the accumulated counting character wheel and the successive counting character wheel to rotate and count. The successive counting character wheel is mounted with a zeroizing device, and the number can go back to zero by pressing the key.

Description

The induction type single-phase electric energy meter that can count one by one

Affiliated technical field:

The utility model relates to a kind of electric energy meter, a kind of induction type single-phase electric energy meter that not only can reflect the accumulative total power consumption but also can reflect a period of time power consumption.

Technical background:

At present, single-phase electric energy meter mainly contains three kinds of induction type (claim not only mechanical type), state type (but also claiming electronic type) and mechanical electronic modes, and what the resident in samll cities and towns and rural area generally used is the induction type single-phase electric energy meter.This electric energy meter has only a batch total digit wheel to reflect that this table is from the power consumption of bringing into use accumulative total.The staff of power department will collect the electricity charge or user will understand power consumption the time, must calculate: the electric weight that the power consumption that shows on the counter is deducted last time record when checking meter.Checking meter is regularly sometimes, is irregular sometimes, and this brings some inconvenience with regard to understanding the power consumption of a certain period for managerial personnel and user.

Summary of the invention:

The utility model provides a kind of induction type single-phase electric energy meter, and it both can show the accumulative total power consumption that electric energy meter begins when installing and using, and can show the actual power consumption in certain period again intuitively.

When the utility model was achieved in that electricity consumption, load voltage produced alternating flux and induce eddy current in the aluminium dish in voltage component; The load current that flows through produces alternating flux and induce eddy current in the aluminium dish in current element, the interaction of eddy current produces the moment that the aluminium dish is rotated and makes the aluminium disc spins; The magnetic flux of permanent magnet produces eddy current during the aluminium disc spins, and electromagnetic force and aluminium dish direction of rotation that this eddy current produces make the rotating speed of aluminium dish be directly proportional with the active power of load.In certain period, total revolution of aluminium dish and the electric energy that load is consumed are directly proportional.One rotating shaft is arranged on the aluminium dish, have worm screw to drive a batch total digit wheel in the rotating shaft of existing known induction type single-phase electric energy meter and rotate to demonstrate the electric energy that load is consumed.Two groups of identical Worm and worm-wheel gearings are arranged in the rotating shaft of the present utility model, below one group with stored count character wheel engagement, above one group with count the character wheel engagement one by one.The aluminium dish drives two groups of worm and gears and rotates with same rotational speed simultaneously when rotating, two groups of worm and gears rotate and drive the stored count character wheel respectively and count character wheel rotation and counting one by one.The stored count character wheel can only stored count and can not return-to-zero, counts one by one zero resetting device is installed on the character wheel, when needing return-to-zero, presses this key, and numeral is got back to zero-bit.The number of times return-to-zero counting character wheel that the return-to-zero key is pushed can show, pushes the return-to-zero key after counting the character wheel return-to-zero one by one, return-to-zero counting character wheel transfixion.

Owing to adopted such scheme, this electric energy meter not only can reflect user's accumulative total power consumption, can also show the power consumption of a period of time intuitively, the convenient use.

Description of drawings:

Figure one is a structural drawing of the present utility model.

Figure two is front appearance figure of the present utility model.

Among the figure: 1, return-to-zero key, 2, count character wheel one by one, 3, Worm and worm-wheel gearing, 4, rotating shaft, 5, the stored count character wheel, 6, voltage component, 7, the aluminium dish, 8, permanent magnet, 9, current element, 10, return-to-zero counting character wheel

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing.

During electricity consumption, produce alternating flux in the voltage component (6) and in aluminium dish (7), induce eddy current; The load current that flows through produces alternating flux and induce eddy current in the aluminium dish in current element (9), the moment that the interaction of eddy current produces makes the aluminium disc spins; The magnetic flux of permanent magnet during the aluminium disc spins (8) produces eddy current, and electromagnetic force and aluminium dish direction of rotation that this eddy current produces are directly proportional total revolution of aluminium dish and electric energy that load is consumed.One rotating shaft (4) is arranged on the aluminium dish, two groups of identical Worm and worm-wheel gearings (3) is arranged in the rotating shaft, below one group of worm and gear and stored count character wheel (5) engagement, above one group of worm and gear with count character wheel (2) engagement one by one.The aluminium dish drives two groups of worm and gears and rotates with same rotational speed simultaneously when rotating, two groups of worm and gears rotate and drive stored count character wheel (5) respectively and count character wheel (2) rotation and counting one by one.Stored count character wheel (5) can only stored count and can not return-to-zero, counts one by one zero resetting device is installed on the character wheel (2), when needing return-to-zero, presses return-to-zero key (1), and numeral is got back to zero-bit.The number of times return-to-zero counting character wheel (10) that the return-to-zero key is pushed can show, counts character wheel (2) one by one and pushes return-to-zero key return-to-zero counting character wheel (10) transfixion when being in zero-bit.

Claims

A kind of induction type single-phase electric energy meter by the return-to-zero key, is counted character wheel one by one, Worm and worm-wheel gearing, rotating shaft, stored count character wheel, voltage component, aluminium dish, permanent magnet, current element, compositions such as return-to-zero counting character wheel is characterized in that having in the rotating shaft two groups of identical Worm and worm-wheel gearings, below one group with the engagement of stored count character wheel, above one group with count the character wheel engagement one by one, count one by one zero resetting device be installed on the character wheel.