CN2410645Y - Photoelectric digit position counting structure for AC meter - Google Patents

Abstract

The utility model relates to a photoelectric digit position counting structure for AC ammeters, which comprises a metal rotary disc, a light-emitting element, a light sensing element and a signal line, wherein, the board surface of the metal rotary disc is provided with a vertical through hole; the light-emitting element and the light sensing element are respectively and relatively arranged on rotational paths of an upper and a lower hole edges of the vertical through hole of the metal rotary disc. When the metal rotary disc rotates one circle, the light sensing element can receive a light ray signal coming from the light-emitting element for one time, and synchronously transforms the light ray signal into a digit position signal which is then output from the signal line. The whole counting mode can be achieved without recurring to the driving of any mechanical members.

Description

The photoelectricity digitisation counting structure of AC ammeter

The utility model system is relevant with the electricity consumption counting structure in the AC ammeter inside, be meant a kind of electronics numerical digit instrumentation structure that is used on this AC ammeter especially, this structure can convert the power consumption by this AC ammeter to outside the one numerical digit signal, also can be by the output of this numerical digit signal, the counting that makes this AC ammeter is simple and convenient more accurately and more.

Industrial and employed alternating current of family of cash and three-phase current all adopt motor meter to count the electric power that each user consumes, and system comprises an electric current magnet 10 in the inside configuration of the motor meter of commonly using (as shown in Figure 1), one voltage magnet 20, one brake magnet 30 and mechanical type counting structure 40, wherein, this counting structure 40 is made up of a metal rotary disk 41 and a gear train counter 42, and these metal rotary disk 41 central authorities are installed with a central shaft 43, and the bottom of this central shaft 43 system is hubbed on the body shell structure of this AC ammeter, when the user begins electricity consumption, its electric power can flow in this AC ammeter earlier, and make the voltage magnet 20 in this AC ammeter produce a portable magnetic field, and this metal rotary disk 41 is promptly under the induction in the magnetic field of this voltage magnet 20 drives and rotate, and the worm screw on this central shaft 43 of interlock 44 is rotated, and the worm gear 45 on this gear train counter 42 is to be engaged on this worm screw 44, make the rotating speed of this metal rotary disk 41 transmission input to this counter 42, make this counter 42 show with cycle type numeral kenel, make a copy of the electric power that this AC ammeter was consumed in each interval to make things convenient for Utilities Electric Co. to send someone, yet, the surge of electricity consumer causes Utilities Electric Co. all need employ a large amount of meter reading personnel every year because of this year, and causes personnel costs to reduce; Moreover, the structural design mode is to reach the progression counting and switch digital function with plurality of pins train group within the aforementioned counter 42, so by the gear set of these counter 42 outsides and the worm screw 44 on this metal rotary disk 41, the rotating speed of this metal rotary disk 41 is being tossed about in bed through under the so many gear drive, this counter 42 numeral of showing of counting not is to be correct actual power consumption, it is because of being: the various errors when commonly using counting each gear in the structure and not only having machine-building, and all can be in the process of transmission owing to the error of power waste and engagement or the like factor, in each counting process, all there is great error amount and make this commonly use the counting structure, cause numeral via 42 outputs of this gear train counter, can there be error forever with the electricity consumption number of degrees value of real reality, and the error amount that increases one by one for years will be bigger, for a large amount of electricity consumers, be very inequitable loss.

Fundamental purpose of the present utility model provides a kind of photoelectricity digitisation counting structure of AC ammeter, the counting mode of mechanical type transmission is commonly used in structure replacement by the utility model, reduce effectively and commonly use the error of AC ammeter, and then make the counting of this AC ammeter can be more accurate at the transmission counting.Because structure of the present utility model need not with mechanism driving, the inner structure of this AC ammeter of energy effective simplification, and then volume, weight and the cost of this counting structure all can be reduced simultaneously.To export be an electronics numerical digit signal to the structure of the utility model in addition, utilizes this electronics numerical digit signal to be sent on the terminating machine of far-end, the enumeration data that makes Utilities Electric Co. need not to send someone again to make a copy of each counter, thus save meter reading personnel's the cost that employs.

The photoelectricity digitisation counting structure of a kind of AC ammeter of the utility model, system comprises a metal rotary disk, one light-emitting component, one Photosensing Units and a signal wire, wherein, these metal rotary disk central authorities are installed with a central shaft, and the bottom of this central shaft system is hubbed at the engine housing of this AC ammeter, it is characterized in that: the plate face appropriate position of this metal rotary disk is provided with a vertical perforations, this light-emitting component and this Photosensing Units all are fixedly arranged on the engine housing of this AC ammeter, and this light-emitting component system is just corresponding to the wherein plate face of this metal rotary disk, and and this metal rotary disk between have a suitable distance and not being in contact with one another, and the light system that its light emitted end is sent is projeced on the rotation path of this perforation; This Photosensing Units system is positioned at another plate face of this metal rotary disk, and and this metal rotary disk between have a suitable distance and not being in contact with one another, its light receiving end is then corresponding across this metal rotary disk with the light emitted end of this light-emitting component, and this signal wire is then in succession on the signal output part of this Photosensing Units.

Wherein, set up at least one vertical perforation again on the plate face of this metal rotary disk.

The utility model has the advantages that:

One, need not transmission fully, get rid of the mechanical type transmission fully and produce by any mechanical type member

Error and loss, and significantly promote simultaneously the metering precision of this AC ammeter.

Two, owing to need not the transmission of mechanical type member, decapacitation effectively joint is used except that commonly using in the AC ammeter

Outside the members such as gear train counter and worm gear, and then the volume of this AC ammeter, weight are reached

The member cost is more reduced to minimum.

Three, because the numerical digit signal that the utility model is exported system can be in succession to various counting assemblys or far-end

Terminating machine on, make Utilities Electric Co. need not to send someone to make a copy of numerical data on each counter,

Save the meter reading personnel's of Utilities Electric Co. personnel costs fully.

The utlity model has following accompanying drawing:

Fig. 1 is the structural representation that the utility model is commonly used motor meter.

Fig. 2 is the structural representation of the utility model.

Fig. 3 is the structural representation of another embodiment of the utility model.

Number in the figure is as follows:

10 electric current magnet, 20 voltage magnet, 30 brake magnets

40 counting structures, 41,50 metal rotary disk, 42 counters

43,52 central shafts, 44 worm screws, 45 worm gears

51,51 ' perforation, 60 light-emitting components, 61 light emitted ends

70 Photosensing Units, 71 light receiving ends, 72 signal output parts

80 signal wire A engine housings

Now lift preferred embodiment and conjunction with figs. is described as follows:

See also shown in Figure 2, the photoelectricity digitisation counting structure of the utility model AC ammeter, system comprises a metal rotary disk 50, a light-emitting component 60, a Photosensing Units 70 and a signal wire 80, wherein, the plate face appropriate position of this metal rotary disk 50 is provided with a vertical perforations 51, and its central authorities are installed with a central shaft 52, and the bottom of this central shaft 52 system is hubbed on the engine housing A (showing as the imaginary line among Fig. 2) of this AC ammeter, make this metal rotary disk 50 when being subjected to the magnetic field induction rotation, this central shaft 52 can be done synchronous rotation with this metal rotary disk 50; This light-emitting component 60 and this Photosensing Units 70 all are fixedly arranged on the engine housing A of this AC ammeter, and this light-emitting component 60 is just corresponding to the wherein plate face of this metal rotary disk 50, and and 50 of this metal rotary disk have a suitable distance and not being in contact with one another, the light system that its light emitted end 61 is sent is projeced into this vertically on the rotation path of perforation 51; This Photosensing Units 70 is another plate face that is positioned at this metal rotary disk 50, and and 50 of this metal rotary disk have a suitable distance and not being in contact with one another, its light receiving end 71 is then corresponding across this metal rotary disk 50 with the light emitted end 61 of this light-emitting component 60, and 80 of this signal wires are in succession on the signal output part 72 of this Photosensing Units 70.

See also shown in Figure 2, when the user begins electricity consumption, this metal rotary disk 50 promptly is subjected to the field drives of voltage magnet 20 and rotates, this moment, the light that sent of light emitted end 61 of this light-emitting component 60 promptly can be incident upon on the plate face of this metal rotary disk 50 continuously, perforation 51 on these metal rotary disk 50 cards goes to the position of this light-emitting component 60, the light that its light emitted end 61 is sent can penetrate the perforation 51 of this metal rotary disk 50, and the light receiving terminal 71 that order is positioned at this Photosensing Units 70 can receive light signal once, be rotated further and position that its perforation 51 is left this light-emitting component 60 in metal rotary disk 50, the light signal that this light-emitting component 60 is sent promptly is subjected to the blocking of the plate face of this metal rotary disk 50, and make this Photosensing Units 70 no longer receive any light signal, anticipate when promptly this metal rotary disk 50 whenever turns around, this Photosensing Units 70 can receive light signal once, again in these metal rotary disk 50 constantly lasting rotation processes, this Photosensing Units 70 can constantly receive light signal, and the signal that converts a digitisation to exports on this signal wire 80 more synchronously, by this signal wire 80 signal after the digitisation is sent on other the digital electronic unit or the terminating machine of far-end, the process of whole generation digitisation signal need not any mechanical type transmission; Again, this metal rotary disk 50 also can be set up at least one vertical perforation for 51 ' (showing as Fig. 3) again on the plate face path of light emitted end 61 irradiations of this light-emitting component 60, and make this Photosensing Units 70 can receive at least two photocentre line signal at the moving circle of these metal rotary disk 50 revolutions, impel the counting of this output signal can be more in accurately.

Claims (2)

1. structure is counted in the photoelectricity digitisation of an AC ammeter, system comprises a metal rotary disk, one light-emitting component, one Photosensing Units and a signal wire, wherein, these metal rotary disk central authorities are installed with a central shaft, and the bottom of this central shaft system is hubbed at the engine housing of this AC ammeter, it is characterized in that: the plate face of this metal rotary disk is provided with a vertical perforations, this light-emitting component and this Photosensing Units all are fixedly arranged on the engine housing of this AC ammeter, and this light-emitting component system is just corresponding to the wherein plate face of this metal rotary disk, and and this metal rotary disk between have a distance and be not in contact with one another, and the light system that its light emitted end is sent is projeced on the rotation path of this perforation; This Photosensing Units system is positioned at another plate face of this metal rotary disk, and and this metal rotary disk between have one the distance and be not in contact with one another, its light receiving end is then corresponding across this metal rotary disk with the light emitted end of this light-emitting component, and this signal wire is then in succession on the signal output part of this Photosensing Units.

2. according to the photoelectricity digitisation counting structure of the described AC ammeter of claim 1, it is characterized in that: wherein, set up at least one vertical perforation on the plate face of this metal rotary disk again.