CA2033193C - Optoelectronic sensor for an energy consumption meter - Google Patents
Optoelectronic sensor for an energy consumption meterInfo
- Publication number
- CA2033193C CA2033193C CA002033193A CA2033193A CA2033193C CA 2033193 C CA2033193 C CA 2033193C CA 002033193 A CA002033193 A CA 002033193A CA 2033193 A CA2033193 A CA 2033193A CA 2033193 C CA2033193 C CA 2033193C
- Authority
- CA
- Canada
- Prior art keywords
- sensor
- face
- support
- meter
- catch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
- G01D4/008—Modifications to installed utility meters to enable remote reading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
- Optical Transform (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Adjustable Resistors (AREA)
- Details Of Measuring And Other Instruments (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The optoelectronic sensor is intended to be placed in a domestic energy consumption meter which comprises a rotary member whose rotational speed is a function of energy consumption. The sensor is accommodated in a support comprising a tongue allowing it to be fastened by elastic gripping to an existing part inside the meter, the tongue maintaining the sensor at a fixed distance from the rotary member of the motor.
The invention is used especially in electricity consumption meters.
The invention is used especially in electricity consumption meters.
Description
Z033~93 ~Optoelectronic sen~or for an energy consumption meter~.
The present invention relates to an opto-electronlc 6ensor for domestic energy consumption me~ers, such a~ electricity meter~ and ~as meters.
At the pre~ent time, electricit~ and gas meters display on their ~ront face a series of figures which express the ~nsumption of electricity or ga~. ~he~e flgures are read periodically in order to prepare the con~umption invoice. ~he~e periodic read~ngg create 10~erious constraints and involve a high outlay.
Many ~olut~on~ have been p~ovided for doing aw~y with the abovementioned reading6. These solution~ haYe involved placing inside the me~er a ~ensor capable o$
detecting the passage of a reference maxk on a rotary 15di6c during each revolution of the latter.
Whenever the reference mark is detected, an electronic component -associated with the ~ensor supplies an elec~rical ~ignal. These electrical signals can be converte~ into electricity or gas con~umption.
20The reading of the con~umption can thus be carried ou~ remotely.
However, fastening these sen~or~ in~ide the electricity and qa~ meters pre~ents difficulties.
In fact, it is importan~ to place these ~en~ors 25at a constant and exact distance from the rotary disc carrying the reference mark, 80 as to obtain reliable and reproducible measurements.
~he ~olutions provided hitherto are un~atis-factory because they ent~il modifications to the meters 30and excessive a~sem~ly ~imes.
The o~ject of the present invention is to over-come the di~adv~ntages of the abo~ementioned solution~
The invention i~ therefore aime~ at an opto-electronic sensor for a domestic energy con~umption meter 35whiCh comprises a rotary member of which the ro~ational speed is a function o~ the consumption, this sensor being intended to be placed inside the meter in order to detect the passa~e ~f a reference mark of the rotary member during e~ch re~olution of the latter.
Accor~lng to the invention, the sensor is accom-modated in a support comprising means allowing it to be fa~en~d to an existing part inside the meter, the said mesns malntaining the Esensor at a fixed distance from the S rotary me~er of the meter.
Thu~, the mounting of the sensor is very eas~ and can be caxried out in a very ~3hort time, since it ~e-quires ~o modification of the mete~ . The ~eans for ~s~ening the support can consist of a g~ipper capa~le of gripping the said part of the meter ela~ticall~.
The s~lpport in which the ~ensor i~; accl :-dAted make~ it easier to n~anipulate the latter, whilst at the same ~ime protecting it.
Moreover, this support, togethe~ with its ~uick-fastQning meanfi, guarantees a high mounting accuracy ins ide the meter .
According to an advantageous version of the invention, the conductor~ coming from the sen~or are embedded in a ~lexible tape made of an insulating material sufficiently thin to be capable of passing between the co~er of the meter and the body of the latter, w~thout any modification of these.
According to a preferred version of the inven-tion, the optoelectronic sensor can be fastened in an el~ctricity con~umption meter comprising, on the front ~ace of its cover, a~ identification plate ha~ing an ape~ture, behind which a di~ car~ying a refe~ence ~ark is mounted rotatably.
In this case, the support of the sensor preferably comprise~ a face equipped with an elastic tongue capable of covering the edge of the identification plate, thi~ 8ame face of the ~upport having a catch which can be lodged at that end of the aperture o~ ~he iden-tification plate adjacent ~o the edge of the latter covered by the tongue of the suppo~t.
Because the catch i5 engaged in the aperture of the ident~f~cation plate, the ~uppor~ of the sensor i~
wedged in the two longitudinal directions of the aperture, on the one hand by the catch up against the end _ 3 _ 2 0 3 3 1 9 3 of this aperture and on the other hand by the bottom of the groove defined by the tongue which is up against the edge of the plate.
Furthermore, the catch wedges the support in the two directions of width of the aperture. Thus, the fastening of the support in relation to the aperture of the identification plate makes it possible accurately to define the distance between the sensor and the rotary disc carrying the reference mark.
The sensor according to the invention can also be fastened in a gas meter, the body of which comprises a series of graduated wheels driven in rotation, one of these carrying a reference mark.
In this case, the support of the sensor preferably comprises a face equipped with an elastic tongue capable of covering the edge of a wall extending inside the body, another face of the support having a shoulder intended for bearing against a surface of the body of the meter, in order to maintain the sensor carried by the support at a particular constant distance from the wheel carrying a reference mark.
In accordance with the present invention, there is provided optoelectronic sensor for a domestic electricity consumption meter comprising a body, a cover, a rotary member whose rotational speed is a function of the consumption, and an identification plate located on said cover, said identifica-tion plate having an aperture behind which the rotary member is rotatably mounted, said sensor adapted to be placed inside the meter in Grder to detect the passage of a reference mark - 3a - 2033 1 93 of the rotary member during each revolution of the latter, said sensor being accommodated in a support comprising means allowing said support to be fastened to an existing part inside the meter, said means maintaining the sensor at a fixed distance from the rotary member, said support comprising a first face equipped with an elastic tcngue capable of covering and elastically gripping an edge of the identification plate, said first face having a catch which can be lodged at an end of said aperture adjacent to said edge of the identification plate covered by said tongue.
Other particular features and advantages of the invention will also emerge from the following description.
In the accompanying drawings given by way of non-limiting examples:
Figure 1 is an elevation view of one face of a first version of a sensor support for an electrical consumption meter, Figure 2 is a view of the opposite face of the support, Figure 3 is a diagrammatic perspective view of an electrical meter of which the cover has been removed, Figure 4 is a front elevation view showing the support of the sensor in position on the edge of the identifica-tion plate and opposite the rotary disc, Figure 5 is a cut-away perspective view showing the fastening of the support to the identification plate, Figure 6 is a perspective view of the meter ~033193 equipped wlth its ~over, - ~igure 7 is an eleva~ion ~iew of a sensor suppo~t intended to be fastened in a gas consum~tion m-tor, S - Figure 8 is a partial plan view of a gas mete~
wh~ch is without its cover and in which the sensor support i8 fa~tened.
The embodiment of Figures 1 and 2 show an optoelectronic sensor 1 intended to be fastened in an electricity consumption meter which comprises (see Figures 3 to 5) a rotary disG 2 of which the rotational speed is a function of the consumption, the se~sor 1 being intende~ to detect ~he passage of a reference mark 3 of the rotary disc 2 during each revolution of the lS l~t~er.
~he ~ual sen~or 1 comprlses, side by side, a diode emit~Lng inf~ared xadiation 4, for example con-sisting of gallium arsenide, and a phototransistor 5, for example co~sistlng of sili~on of the n-p-n type, thio diode 4 and thi~ photo~ransistor 5 ~eing mounted in a pla~tic body ~.
The diode 4 emits a radiation which Ls reflected on ~ reflecting surface towards to the phototransi~tor 5 which con~e~ts radia~ion recei~ed into an ele~trical 2S signal. So that the xadiation e~itted ~y the diode 4 can be reflecte~ towards to the pho~otransisto~ 5 with accurac~, the reflecting suxface m~st be located at an exact dista~ce from the sensor 1.
Where an electricity consumption meter is con-cerned, the reflecting surface corlsists of the rotary disc ~ which rotates at a ~peed proportional to the elec~cxical powe~ consumption.
This disc 2 from the outset carries a black refererlc:e mark 3 which is thus detected by the sensor 1 during each revolution.
According to the inven~ion, the ~ensor 1 i~
accommodated in a support 7 m~de, for example, of plastic and comprising means allowing it to be fa~tened by elastic gripping to an existing par~ inside the meter, 2033~93 the said means maint~i n i ~g the sensor 1 at a fixed distance d (see figure 4) from the rotary di~c 2 of the meter.
Figure~ 2, 4, 5 and 6 show tha~ the conductors 8, S 9, lO and ll coming from the sensor l are ~--he~QA in a flex~ble tape 11 ~ade of ~nsulating plastic sufficiently thin to be capable of pa68ing ( see Figure 6) between ~he cover 13 o ~he meter and the body 14 of ~he l~tter, without any modification of these.
The elQctricity consumption meter compri~efi, on th front f~ce of its cover 13, an identification p~a~e 15 having a rectangul~r aperture 16, h~in~ which (see ~i~ures 3 and 5) the disc 2 car~ying the black reference ~rk 3 i~ ~ounted rota~ably.
The ~upport 7 of the sen~or 1 comprise~ a face 17 e~uipped with an elastic tongue 18 which extends parallel to this ~ace 17 and which is capable of covering the edge 15a of the identif~cation plate 15, a8 indicated in Piqure 5. Thi~ ~ame face 18 of the ~upport 7 ha~ a catch 19 ~hich can be lodged at that end 16a of the aperture 16 of the identification plate 15 ad~acent to the edge l~a o~ the latter covered by the tongue 18 of the support 7.
The ~ n~ions of the catch l9 correspond to that of the ~aid end 16a of the aperture 16, so that it can fit into the l~tter substant~all~ without play.
Figure 5 also ~hows that the bottom ~Oa of the groove 20 defined betwcen the ~ongue 18 an~ the face 17 of the support 7 i~ located at a di~tance from the catch 19 ~ubstantially equal to the distance between the edge 15a of the plate and the end ~6a of ~he aperture of the latter. Thus, the catch 19 is wedged against the e~ge 16a of th~ aperture, and the bottom 2~a of the groove ~0 i~
~edqed against the edge 15a of the plate.
Moreover, as illustrated in Figure~ 1, 4 and 5, the support 7 ha~ a ~ace 21 perpendicular to that having the tongue 18 an~ the catch 19. This face 21 possesses an orifice 22 communicating with the receptacle of the sensor l. The distance between the catch l9 and the face 21 i~ dete~mined ~o as ~o maintain the senso~ 1 accommodated b~hl~ the ori~ice 22 at a suitable constant distance d from thQ dl~c 2 mounted rotatably in a plane p~llel to the said face 21. This exactly de~e~mi n~
distance d allow~ the radiation e~itted by the diode 4 to S be reflected on the diec 2 and be receive~ by the phototransLstor 5 after re~lection.
Furthermore, the upport 7 has a face 23 which i8 opposite the ~aid face 21 having the orifice 22 and from which emerye tho conductors 8, g, 10 and 11 connected to 1~ the ~en~or 1.
The mounting o~ the support 7 in the electricity consumption meter is ext~emely simple.
It is sufficient to remove the ~over 13 and engage the groove 20 def ined b~ the tongue 18 onto the ed~e 15a of the plate oppo~ite the aperture 16 and then to p~sh the support 7 toward~ this aperture until the catch 19 engages in the end of the apexture.
The tape 12 having the conductors 8, g, 10 and 11 eon~ected to the sen~or 1 i~ subsequentl~ passed over the 2~ edge of the body 14 o~ the meter, and the cover 13 is then sec~red.
~igure 7 illustrate~ a support 25 of the sensor 26 intended to be placed in a gas consumption meter. The body 27 of thL~ meter (see Figure 8) comprises a series 2S o~ ~raduated wheel~ 28 driven in rotation. T~e rotational speed of these wheels 28 is proportional to the con-sumption. The last wheel 28 carries a reference mark 2~
consisting, for example, of a black adhe~i~e tape and intended to be detecte~ by the sensor 26.
The support 25 of the sensor ~6 comprises a face 30 eguipped with an elastic tongue 31 capa~le of covering and gr~pping the edge 3~a of a wall 32 extending inside the body 27. Another face of the support 2S has a shoulder 33 intended to ~ear agains~ a ~u~face 34 of the body 27 ~f the meter (~ee Fi~ure ~, in order to maintain the sensor ~6 carrle~ ~y the support 25 at a particula~
constant dlstan~e d~ from th~ wheel 28 carrying a refe-rence mark 29.
In the exa~ple illux~rated in Figure 8, the ~ody 27 ~f the meter comprlses, opposite the wheel 28 car~yin~
~ refQrence mark 29, a receptacle of a cross-section sub~tantially ln ~-he form of a U open towards the said whe~1 and delimited by three walls 32, 35 and 36 of t~e bo~y. ~t can be seen fxom thi~ Figure 8 that the support ~S o~ the ~ensor has a cross-section matched to the d~mension~ of ~he said ~eceptacle, so as to be capable of f~tting into the latter.
A~ in the embodiment according ~o Figures 1 to 6, the mounting of the suppo~ 25 in the body 27 of the ~s me~er is ~ery easy and requi~es no modifi~at~on of the ~ai~ meter. Likewise, the tape 37 carrying the cond~ctors connected to the sensor 26 can ~e passed between the edge 38 of the body 27 of the ~eter and the cove~ (not shown) lS of t~e latter.
Of course, the invention is n~t limited to the exemplary embodi~ents ~u~t ~escribed, and many modification6 can be made to these, without departing from the scope of the invention.
The present invention relates to an opto-electronlc 6ensor for domestic energy consumption me~ers, such a~ electricity meter~ and ~as meters.
At the pre~ent time, electricit~ and gas meters display on their ~ront face a series of figures which express the ~nsumption of electricity or ga~. ~he~e flgures are read periodically in order to prepare the con~umption invoice. ~he~e periodic read~ngg create 10~erious constraints and involve a high outlay.
Many ~olut~on~ have been p~ovided for doing aw~y with the abovementioned reading6. These solution~ haYe involved placing inside the me~er a ~ensor capable o$
detecting the passage of a reference maxk on a rotary 15di6c during each revolution of the latter.
Whenever the reference mark is detected, an electronic component -associated with the ~ensor supplies an elec~rical ~ignal. These electrical signals can be converte~ into electricity or gas con~umption.
20The reading of the con~umption can thus be carried ou~ remotely.
However, fastening these sen~or~ in~ide the electricity and qa~ meters pre~ents difficulties.
In fact, it is importan~ to place these ~en~ors 25at a constant and exact distance from the rotary disc carrying the reference mark, 80 as to obtain reliable and reproducible measurements.
~he ~olutions provided hitherto are un~atis-factory because they ent~il modifications to the meters 30and excessive a~sem~ly ~imes.
The o~ject of the present invention is to over-come the di~adv~ntages of the abo~ementioned solution~
The invention i~ therefore aime~ at an opto-electronic sensor for a domestic energy con~umption meter 35whiCh comprises a rotary member of which the ro~ational speed is a function o~ the consumption, this sensor being intended to be placed inside the meter in order to detect the passa~e ~f a reference mark of the rotary member during e~ch re~olution of the latter.
Accor~lng to the invention, the sensor is accom-modated in a support comprising means allowing it to be fa~en~d to an existing part inside the meter, the said mesns malntaining the Esensor at a fixed distance from the S rotary me~er of the meter.
Thu~, the mounting of the sensor is very eas~ and can be caxried out in a very ~3hort time, since it ~e-quires ~o modification of the mete~ . The ~eans for ~s~ening the support can consist of a g~ipper capa~le of gripping the said part of the meter ela~ticall~.
The s~lpport in which the ~ensor i~; accl :-dAted make~ it easier to n~anipulate the latter, whilst at the same ~ime protecting it.
Moreover, this support, togethe~ with its ~uick-fastQning meanfi, guarantees a high mounting accuracy ins ide the meter .
According to an advantageous version of the invention, the conductor~ coming from the sen~or are embedded in a ~lexible tape made of an insulating material sufficiently thin to be capable of passing between the co~er of the meter and the body of the latter, w~thout any modification of these.
According to a preferred version of the inven-tion, the optoelectronic sensor can be fastened in an el~ctricity con~umption meter comprising, on the front ~ace of its cover, a~ identification plate ha~ing an ape~ture, behind which a di~ car~ying a refe~ence ~ark is mounted rotatably.
In this case, the support of the sensor preferably comprise~ a face equipped with an elastic tongue capable of covering the edge of the identification plate, thi~ 8ame face of the ~upport having a catch which can be lodged at that end of the aperture o~ ~he iden-tification plate adjacent ~o the edge of the latter covered by the tongue of the suppo~t.
Because the catch i5 engaged in the aperture of the ident~f~cation plate, the ~uppor~ of the sensor i~
wedged in the two longitudinal directions of the aperture, on the one hand by the catch up against the end _ 3 _ 2 0 3 3 1 9 3 of this aperture and on the other hand by the bottom of the groove defined by the tongue which is up against the edge of the plate.
Furthermore, the catch wedges the support in the two directions of width of the aperture. Thus, the fastening of the support in relation to the aperture of the identification plate makes it possible accurately to define the distance between the sensor and the rotary disc carrying the reference mark.
The sensor according to the invention can also be fastened in a gas meter, the body of which comprises a series of graduated wheels driven in rotation, one of these carrying a reference mark.
In this case, the support of the sensor preferably comprises a face equipped with an elastic tongue capable of covering the edge of a wall extending inside the body, another face of the support having a shoulder intended for bearing against a surface of the body of the meter, in order to maintain the sensor carried by the support at a particular constant distance from the wheel carrying a reference mark.
In accordance with the present invention, there is provided optoelectronic sensor for a domestic electricity consumption meter comprising a body, a cover, a rotary member whose rotational speed is a function of the consumption, and an identification plate located on said cover, said identifica-tion plate having an aperture behind which the rotary member is rotatably mounted, said sensor adapted to be placed inside the meter in Grder to detect the passage of a reference mark - 3a - 2033 1 93 of the rotary member during each revolution of the latter, said sensor being accommodated in a support comprising means allowing said support to be fastened to an existing part inside the meter, said means maintaining the sensor at a fixed distance from the rotary member, said support comprising a first face equipped with an elastic tcngue capable of covering and elastically gripping an edge of the identification plate, said first face having a catch which can be lodged at an end of said aperture adjacent to said edge of the identification plate covered by said tongue.
Other particular features and advantages of the invention will also emerge from the following description.
In the accompanying drawings given by way of non-limiting examples:
Figure 1 is an elevation view of one face of a first version of a sensor support for an electrical consumption meter, Figure 2 is a view of the opposite face of the support, Figure 3 is a diagrammatic perspective view of an electrical meter of which the cover has been removed, Figure 4 is a front elevation view showing the support of the sensor in position on the edge of the identifica-tion plate and opposite the rotary disc, Figure 5 is a cut-away perspective view showing the fastening of the support to the identification plate, Figure 6 is a perspective view of the meter ~033193 equipped wlth its ~over, - ~igure 7 is an eleva~ion ~iew of a sensor suppo~t intended to be fastened in a gas consum~tion m-tor, S - Figure 8 is a partial plan view of a gas mete~
wh~ch is without its cover and in which the sensor support i8 fa~tened.
The embodiment of Figures 1 and 2 show an optoelectronic sensor 1 intended to be fastened in an electricity consumption meter which comprises (see Figures 3 to 5) a rotary disG 2 of which the rotational speed is a function of the consumption, the se~sor 1 being intende~ to detect ~he passage of a reference mark 3 of the rotary disc 2 during each revolution of the lS l~t~er.
~he ~ual sen~or 1 comprlses, side by side, a diode emit~Lng inf~ared xadiation 4, for example con-sisting of gallium arsenide, and a phototransistor 5, for example co~sistlng of sili~on of the n-p-n type, thio diode 4 and thi~ photo~ransistor 5 ~eing mounted in a pla~tic body ~.
The diode 4 emits a radiation which Ls reflected on ~ reflecting surface towards to the phototransi~tor 5 which con~e~ts radia~ion recei~ed into an ele~trical 2S signal. So that the xadiation e~itted ~y the diode 4 can be reflecte~ towards to the pho~otransisto~ 5 with accurac~, the reflecting suxface m~st be located at an exact dista~ce from the sensor 1.
Where an electricity consumption meter is con-cerned, the reflecting surface corlsists of the rotary disc ~ which rotates at a ~peed proportional to the elec~cxical powe~ consumption.
This disc 2 from the outset carries a black refererlc:e mark 3 which is thus detected by the sensor 1 during each revolution.
According to the inven~ion, the ~ensor 1 i~
accommodated in a support 7 m~de, for example, of plastic and comprising means allowing it to be fa~tened by elastic gripping to an existing par~ inside the meter, 2033~93 the said means maint~i n i ~g the sensor 1 at a fixed distance d (see figure 4) from the rotary di~c 2 of the meter.
Figure~ 2, 4, 5 and 6 show tha~ the conductors 8, S 9, lO and ll coming from the sensor l are ~--he~QA in a flex~ble tape 11 ~ade of ~nsulating plastic sufficiently thin to be capable of pa68ing ( see Figure 6) between ~he cover 13 o ~he meter and the body 14 of ~he l~tter, without any modification of these.
The elQctricity consumption meter compri~efi, on th front f~ce of its cover 13, an identification p~a~e 15 having a rectangul~r aperture 16, h~in~ which (see ~i~ures 3 and 5) the disc 2 car~ying the black reference ~rk 3 i~ ~ounted rota~ably.
The ~upport 7 of the sen~or 1 comprise~ a face 17 e~uipped with an elastic tongue 18 which extends parallel to this ~ace 17 and which is capable of covering the edge 15a of the identif~cation plate 15, a8 indicated in Piqure 5. Thi~ ~ame face 18 of the ~upport 7 ha~ a catch 19 ~hich can be lodged at that end 16a of the aperture 16 of the identification plate 15 ad~acent to the edge l~a o~ the latter covered by the tongue 18 of the support 7.
The ~ n~ions of the catch l9 correspond to that of the ~aid end 16a of the aperture 16, so that it can fit into the l~tter substant~all~ without play.
Figure 5 also ~hows that the bottom ~Oa of the groove 20 defined betwcen the ~ongue 18 an~ the face 17 of the support 7 i~ located at a di~tance from the catch 19 ~ubstantially equal to the distance between the edge 15a of the plate and the end ~6a of ~he aperture of the latter. Thus, the catch 19 is wedged against the e~ge 16a of th~ aperture, and the bottom 2~a of the groove ~0 i~
~edqed against the edge 15a of the plate.
Moreover, as illustrated in Figure~ 1, 4 and 5, the support 7 ha~ a ~ace 21 perpendicular to that having the tongue 18 an~ the catch 19. This face 21 possesses an orifice 22 communicating with the receptacle of the sensor l. The distance between the catch l9 and the face 21 i~ dete~mined ~o as ~o maintain the senso~ 1 accommodated b~hl~ the ori~ice 22 at a suitable constant distance d from thQ dl~c 2 mounted rotatably in a plane p~llel to the said face 21. This exactly de~e~mi n~
distance d allow~ the radiation e~itted by the diode 4 to S be reflected on the diec 2 and be receive~ by the phototransLstor 5 after re~lection.
Furthermore, the upport 7 has a face 23 which i8 opposite the ~aid face 21 having the orifice 22 and from which emerye tho conductors 8, g, 10 and 11 connected to 1~ the ~en~or 1.
The mounting o~ the support 7 in the electricity consumption meter is ext~emely simple.
It is sufficient to remove the ~over 13 and engage the groove 20 def ined b~ the tongue 18 onto the ed~e 15a of the plate oppo~ite the aperture 16 and then to p~sh the support 7 toward~ this aperture until the catch 19 engages in the end of the apexture.
The tape 12 having the conductors 8, g, 10 and 11 eon~ected to the sen~or 1 i~ subsequentl~ passed over the 2~ edge of the body 14 o~ the meter, and the cover 13 is then sec~red.
~igure 7 illustrate~ a support 25 of the sensor 26 intended to be placed in a gas consumption meter. The body 27 of thL~ meter (see Figure 8) comprises a series 2S o~ ~raduated wheel~ 28 driven in rotation. T~e rotational speed of these wheels 28 is proportional to the con-sumption. The last wheel 28 carries a reference mark 2~
consisting, for example, of a black adhe~i~e tape and intended to be detecte~ by the sensor 26.
The support 25 of the sensor ~6 comprises a face 30 eguipped with an elastic tongue 31 capa~le of covering and gr~pping the edge 3~a of a wall 32 extending inside the body 27. Another face of the support 2S has a shoulder 33 intended to ~ear agains~ a ~u~face 34 of the body 27 ~f the meter (~ee Fi~ure ~, in order to maintain the sensor ~6 carrle~ ~y the support 25 at a particula~
constant dlstan~e d~ from th~ wheel 28 carrying a refe-rence mark 29.
In the exa~ple illux~rated in Figure 8, the ~ody 27 ~f the meter comprlses, opposite the wheel 28 car~yin~
~ refQrence mark 29, a receptacle of a cross-section sub~tantially ln ~-he form of a U open towards the said whe~1 and delimited by three walls 32, 35 and 36 of t~e bo~y. ~t can be seen fxom thi~ Figure 8 that the support ~S o~ the ~ensor has a cross-section matched to the d~mension~ of ~he said ~eceptacle, so as to be capable of f~tting into the latter.
A~ in the embodiment according ~o Figures 1 to 6, the mounting of the suppo~ 25 in the body 27 of the ~s me~er is ~ery easy and requi~es no modifi~at~on of the ~ai~ meter. Likewise, the tape 37 carrying the cond~ctors connected to the sensor 26 can ~e passed between the edge 38 of the body 27 of the ~eter and the cove~ (not shown) lS of t~e latter.
Of course, the invention is n~t limited to the exemplary embodi~ents ~u~t ~escribed, and many modification6 can be made to these, without departing from the scope of the invention.
Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Optoelectronic sensor for a domestic electricity consumption meter comprising a body, a cover, a rotary member whose rotational speed is a function of the consumption, and an identification plate located on said cover, said identification plate having an aperture behind which the rotary member is rotatably mounted, said sensor adapted to be placed inside the meter in order to detect the passage of a reference mark of the rotary member during each revolution of the latter, said sensor being accommodated in a support comprising means allowing said support to be fastened to an existing part inside the meter, said means maintaining the sensor at a fixed distance from the rotary member, said support comprising a first face equipped with an elastic tGngue capable of covering and elastically gripping an edge of the identifica-tion plate, said first face having a catch which can be lodged at an end of said aperture adjacent to said edge of the identification plate covered by said tongue.
2. Sensor according to claim 1, wherein conductors emanating from the sensor are embedded in a flexible tape made of an insulating material sufficiently thin so as to be capable of passing between the cover and the body of the meter, without any modification of these.
3. Sensor according to claim 1, wherein the catch has dimensions which correspond to those of said end of the aperture, so that said catch can fit into said aperture substantially without play.
4. Sensor according to claim 1, wherein a groove defined between the tongue and said first face of the support has its bottom located at a distance from the catch substantially equal to the distance between the edge of the identification plate and the end of the aperture.
5. Sensor according to claim 2, wherein the support has a second face perpendicular to the first face equipped with the tongue and the catch, said second face possessing an orifice communicating with the sensor, the distance between the catch and said second face being determined so as to maintain the sensor accommodated behind the orifice at a suitable constant distance from the rotary member rotatably mounted in a plane parallel to said second face.
6. Sensor according to claim 5, wherein the support has a third face, which is opposite said second face, and from which emerge said conductors connected to the sensor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8908268 | 1989-06-21 | ||
| FR8908268A FR2648906B1 (en) | 1989-06-21 | 1989-06-21 | OPTO-ELECTRONIC SENSOR FOR ENERGY CONSUMPTION METER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2033193A1 CA2033193A1 (en) | 1990-12-22 |
| CA2033193C true CA2033193C (en) | 1996-02-20 |
Family
ID=9382986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002033193A Expired - Fee Related CA2033193C (en) | 1989-06-21 | 1990-06-20 | Optoelectronic sensor for an energy consumption meter |
Country Status (25)
| Country | Link |
|---|---|
| US (1) | US5170051A (en) |
| EP (1) | EP0434803B1 (en) |
| KR (1) | KR940004879B1 (en) |
| AU (1) | AU628607B2 (en) |
| CA (1) | CA2033193C (en) |
| CZ (1) | CZ281870B6 (en) |
| DD (1) | DD298027A5 (en) |
| DE (1) | DE69006587T2 (en) |
| DZ (1) | DZ1426A1 (en) |
| ES (1) | ES2027207T3 (en) |
| FR (1) | FR2648906B1 (en) |
| GR (1) | GR1001083B (en) |
| HU (1) | HU207158B (en) |
| IE (1) | IE65115B1 (en) |
| MA (1) | MA21879A1 (en) |
| MX (1) | MX172159B (en) |
| MY (1) | MY105825A (en) |
| NZ (1) | NZ234158A (en) |
| OA (1) | OA09283A (en) |
| PT (1) | PT94429B (en) |
| RO (1) | RO109981B1 (en) |
| RU (1) | RU2075090C1 (en) |
| TN (1) | TNSN90087A1 (en) |
| WO (1) | WO1990015971A1 (en) |
| YU (1) | YU47150B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5750983A (en) * | 1995-03-20 | 1998-05-12 | Schlumberger Industries, Inc. | Meter sensor light tamper detector |
| US5874731A (en) * | 1995-03-20 | 1999-02-23 | Schlumberger Industries, Inc. | Ambient light filter |
| DE19719459A1 (en) * | 1997-05-07 | 1998-11-12 | Inotech Ges Fuer Entwicklung U | Energy and water usage summation mechanical counter gradation scanner |
| US6885185B1 (en) | 1998-12-01 | 2005-04-26 | Itron Electricity Metering, Inc. | Modular meter configuration and methodology |
| US20050240427A1 (en) * | 2004-04-26 | 2005-10-27 | Crichlow Henry B | Energy management method and process using analytic metrics. |
| CN113466549A (en) * | 2021-05-17 | 2021-10-01 | 活字科技(杭州)有限公司 | Energy consumption monitoring device and electronic equipment |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1476405A (en) * | 1974-06-07 | 1977-06-16 | Vactoric Control Equip | Optical encoder |
| US4037219A (en) * | 1975-12-30 | 1977-07-19 | Westinghouse Electric Corporation | Meter dial encoder for remote meter reading |
| US4182953A (en) * | 1978-01-17 | 1980-01-08 | General Atomic Company | Rotating shaft pulse generating apparatus |
| US4327362A (en) * | 1978-10-23 | 1982-04-27 | Rockwell International Corporation | Meter rotor rotation optical sensor |
| US4638314A (en) * | 1984-01-12 | 1987-01-20 | American Science And Engineering, Inc. | Meter transponder hybrid |
| US4792677A (en) * | 1986-08-29 | 1988-12-20 | Domestic Automation Company, Inc. | System for use with a utility meter for recording time of energy use |
| US4803484A (en) * | 1987-01-16 | 1989-02-07 | Energy Innovations, Inc. | Optically readable and human readable dial |
| FR2614098B1 (en) * | 1987-04-17 | 1989-07-28 | Erji | DEVICE ADAPTABLE TO DIFFERENT COUNTERS FOR SUPPORTING AN OPTICAL SENSOR |
| DE3908932A1 (en) * | 1988-05-25 | 1989-12-07 | Heidenhain Gmbh Dr Johannes | ANGLE MEASURING DEVICE |
-
1989
- 1989-06-21 FR FR8908268A patent/FR2648906B1/en not_active Expired - Fee Related
-
1990
- 1990-06-17 DZ DZ900110A patent/DZ1426A1/en active
- 1990-06-18 MA MA22150A patent/MA21879A1/en unknown
- 1990-06-18 GR GR900100456A patent/GR1001083B/en not_active IP Right Cessation
- 1990-06-18 YU YU118790A patent/YU47150B/en unknown
- 1990-06-20 US US07/635,577 patent/US5170051A/en not_active Expired - Fee Related
- 1990-06-20 PT PT94429A patent/PT94429B/en not_active IP Right Cessation
- 1990-06-20 HU HU905419A patent/HU207158B/en not_active IP Right Cessation
- 1990-06-20 KR KR1019910700193A patent/KR940004879B1/en active IP Right Grant
- 1990-06-20 CA CA002033193A patent/CA2033193C/en not_active Expired - Fee Related
- 1990-06-20 WO PCT/FR1990/000447 patent/WO1990015971A1/en active IP Right Grant
- 1990-06-20 RO RO146955A patent/RO109981B1/en unknown
- 1990-06-20 MY MYPI90001040A patent/MY105825A/en unknown
- 1990-06-20 IE IE223290A patent/IE65115B1/en unknown
- 1990-06-20 TN TNTNSN90087A patent/TNSN90087A1/en unknown
- 1990-06-20 DE DE69006587T patent/DE69006587T2/en not_active Expired - Fee Related
- 1990-06-20 MX MX021241A patent/MX172159B/en unknown
- 1990-06-20 CZ CS903078A patent/CZ281870B6/en not_active IP Right Cessation
- 1990-06-20 NZ NZ234158A patent/NZ234158A/en unknown
- 1990-06-20 EP EP90910136A patent/EP0434803B1/en not_active Expired - Lifetime
- 1990-06-20 RU SU904894863A patent/RU2075090C1/en not_active IP Right Cessation
- 1990-06-20 ES ES90910136T patent/ES2027207T3/en not_active Expired - Lifetime
- 1990-06-20 AU AU59358/90A patent/AU628607B2/en not_active Ceased
- 1990-06-20 DD DD90341886A patent/DD298027A5/en not_active IP Right Cessation
-
1991
- 1991-02-20 OA OA59952A patent/OA09283A/en unknown
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| Date | Code | Title | Description |
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| EEER | Examination request | ||
| MKLA | Lapsed |