DD297715A5

DD297715A5 - ELEKTRIZITAETSZAEHLER

Info

Publication number: DD297715A5
Application number: DD34414690A
Authority: DD
Inventors: Horst Hoffmann; Eckhard Blumenthal; Friedrich Brueggemann; Dieter Sleur
Original assignee: Licentia Patent-Verwaltungs-Gmbh,De
Priority date: 1989-10-06
Filing date: 1990-09-24
Publication date: 1992-01-16
Also published as: DE3933356A1; EP0421320A2; EP0421320A3

Abstract

Der Elektrizitaetszaehler hat ein aus einer Grundplatte (1) und einer Gehaeusekappe (2) zusammengesetztes Zaehlergehaeuse * Dieses nimmt in seinem Innenraum (3 a) ein der Beglaubigungspflicht unterliegendes Zaehlermeszwerk auf. Es sollen der Beglaubigungspflicht nicht unterliegende Zusatzgeraete raumsparend am Zaehlergehaeuse (3) so untergebracht werden, dasz die Eichgueltigkeit des Elektrizitaetszaehlers auch bei einer Nachruestung oder UEberholung der Zusatzgeraete erhalten bleibt. Zu diesem Zweck ist die Gehaeusekappe (2) in einem Teilbereich mit einer in den Innenraum (3 a) des Zaehlergehaeuses (3) eintauchenden Kammer (2 b) versehen. Diese ist zum Innenraum (3 a) hin geschlossen und an der Vorderseite des Zaehlergehaeuses (3) von auszen her zugaenglich. Nach dem Einbau der Zusatzgeraete (5) ist die Kammer (2 b) mit einem Abdeckteil (4) verschlieszbar. Die zum Innenraum (3 a) hin geschlossene Kammer (2 b) kann unmittelbar durch eine in die Gehaeusekappe (2) eingeformte Trennwand (2 c) gebildet sein, sie kann jedoch auch als separates Teil hergestellt sein, das in einem Ausschnitt der Gehaeusekappe (2) selbsthaltend eingesetzt ist. Insbesondere bei einem Drehstrom-Elektrizitaetszaehler eignet sich die in die Gehaeusekappe (2) integrierte separate Kammer (2 b) zum Einbau von elektronischen Steuer- und Kommunikationsbausteinen wie einem Rundsteuerempfaenger, einem Tarifschaltuhrenbaustein, einem Temex-Modul, einem Bus-Anschluszsystem oder aehnlicher zusaetzlicher Tarifgeraete. Figur 2The Elektrizitaetszaehler has a composed of a base plate (1) and a Gehaeusekappe (2) Zaehlergehaeuse * This takes in its interior (3 a) on the subject of mandatory certification Zaehlermeszwerk on. It should the accomodation not subordinated Zusatzgeraete space-saving on Zaehlergehaeuse (3) are housed so dasz the Eichgueltigkeit of Elektrizitaetszaehlers also remains in a retrofitting or overhaul of additional equipment. For this purpose, the Gehaeusekappe (2) in a partial area with a in the interior (3 a) of the Zaehlergehaeuses (3) dipping chamber (2 b) is provided. This is closed to the interior (3 a) out and on the front of Zaehlergehaeuses (3) from auszen ago accessible. After installation of Zusatzgeraete (5), the chamber (2 b) with a cover (4) can be locked. The chamber (2 b) which is closed towards the interior (3 a) can be formed directly by a dividing wall (2 c) formed in the housing cap (2), but it can also be produced as a separate part which is located in a section of the housing cap (2). 2) is used self-holding. Particularly in the case of a three-phase electricity meter, the separate chamber (2 b) integrated into the housing cap (2) is suitable for installing electronic control and communication components such as a ripple control receiver, a tariff clock module, a Temex module, a bus connection system or similar additional tariff devices , FIG. 2

Description

Fig. 1: zeigt vereinfacht die Frontansicht eines Drehstrom-Zählergehäuses, während Fig. 2: einen Schnitt durch den Elektrizitätszähler gemäß der Linie H-Il schematisch vereinfacht wiedergibt.Fig. 1: shows a simplified front view of a three-phase meter housing, while Fig. 2: shows a section through the electricity meter according to the line H-II schematically simplified.

Der Elektrizitätszähler hat ein aus einer Grundplatte (Hund einer Gehäusekappe (2) zusammengesetztes Zählergehäuse (3), welches in seinem geschlossenen Innenraum (3 a) ein nicht gezeigtes, an der Grundplatte befestigtes Drehstrom-Meßwerk aufnimmt. Dieses Meßwerk, vorzugsweise nach dem Induktionsprinzip mit auf einen Zählerläufer wirkenden Triebsystemen, einem oder mehreren Zählwerken und gegebenenfalls weiteren im Zählerbau üblichen Funktionsgruppen wird vom Hersteller des Elektrizitätszählers eingestellt sowie beglaubigt und nach Aufsetzen der Gehäusekappe mittels Plombierschrauben (3 b) gegen unbefugten Eingriff geschützt. Ein mit der Gehäusekappe fest verbundenes transparentes Sichtfenster (2 a) gibt dabei den Einblick auf ein Typenschild frei, welches auf bekannte Art bedruckt und mit Ausschnitten (2 a') wie angedeutet versehen ist. Unterhalb des Sichtfensters (2a) ist in der Gehäusekappe etwa über deren gesamte Breite vertieft eine Kammer (2 b) eingeformt, die zum Innenraum hin mittels einer Trennwand (2c) berührungssicher abgeschottet ist und dabei dan über dem Meßwerk verbleibenden Freiraum nutzt. Die in Fig.2 gezeigte ebene Trennwand (2c) ist daher nur schematisch dargestellt. Beim fertigen Elektrizitätszähler ist die Trennwand vorzugsweise stufig dem vorhandenen Freiraum optimal angepaßt, so daß zumindest teilweise als Tiefe der Kammer (2 b) nahezu die halbe Gehäusekappenhöhe genutzt werden kann. Die Kammer ihrerseits ist von einer labyrinthartigen Randausbildung (2d) umgeben und mit einem darauf aufliegenden, angepaßten Abdeckteil (4) verschlossen, welches die Außenkonturen der Gehäusekappe nahezu oberflächenbündig vervollständigt. Dabei bilden die Frontseite (4') des mit einem transparenten Fenster (4 a) versehenen Abdeckteiles und der erhabene Bereich (2') der Gehäusekappe vorzugsweise eine ebene glatte Fläche und entsprechen daher räumlich sowie optisch etwa einem herkömmlichen Zählergehäuse. Insbesondere bleibt ein von der Gehäusekappe nicht überdeckter Klemmenblockbereichd a)an der dort vorstehenden Grundplatte (1) wie bisher ungehindert zugänglich.The electricity meter has a composed of a base plate (dog a housing cap (2) counter housing (3) which receives in its closed interior (3 a) not shown, attached to the base plate three-phase current measuring device, this measuring unit, preferably according to the induction principle with Actuator systems acting on a counter runner, one or more counters and optionally other functional groups customary in counter construction are set and authenticated by the manufacturer of the electricity meter and protected against unauthorized interference after the housing cap has been fitted by means of sealing screws (3b). 2 a) releases the view on a nameplate, which is printed in a known manner and provided with cutouts (2 a ') as indicated below the viewing window (2a) is recessed in the housing cap over its entire width deepened a chamber (2 b) formed, the z is sealed off from the inside by means of a partition wall (2c) and thereby uses dan over the measuring mechanism remaining free space. The planar partition shown in Figure 2 (2c) is therefore shown only schematically. In the finished electricity meter, the partition wall is preferably stepwise optimally adapted to the existing free space, so that at least partially as the depth of the chamber (2 b) can be used almost half the height of the housing cap. The chamber in turn is surrounded by a labyrinth-like edge formation (2d) and closed with an adapted, covered cover part (4), which completes the outer contours of the housing cap almost flush with the surface. In this case, the front side (4 ') of the cover part provided with a transparent window (4 a) and the raised area (2') of the housing cap preferably form a flat, smooth surface and therefore correspond spatially and optically approximately to a conventional meter housing. In particular, a terminal block area a) not covered by the housing cap remains accessible unhindered on the base plate (1) projecting there, as hitherto.

In der Kammer (2 b) lassen sich vorzugsweise elektronische Zusatzgeräte unterbringen, beispielsweise ein durch eine Leiterplatte (5) angedeuteter Rundsteuerempfänger. Damit dieser in Wirkverbindung mit dem Meßwerk des Elektrizitätszählers treten kann, ist innerhalb des plombierten Innenraumes (3a) eine lediglich schematisch angedeutete, verschiedene Funktionen erfüllende Schaltungsplatine (6) befestigt. Diese ist beispielsweise mit Kontaktflächen (6a) versehen und in einemIn the chamber (2 b) can be preferably accommodate electronic accessories, such as a by a printed circuit board (5) indicated ripple control receiver. So that it can enter into operative connection with the measuring mechanism of the electricity meter, within the sealed interior (3a) a circuit board (6) fulfilling only different functions is shown. This is provided for example with contact surfaces (6a) and in one

Durchsteckschlitz in der Trennwand (2c) geführt mit den Kontaktflächen in Richtung der Kammer vorstehend angeordnet. Ein rahmenartiges, an den Durchsteckschlitz angepaßtes Dichtelement (6b) liegt eng an der Schaltungsplatine (6) an und ist durch nicht gezeigte Querstege, die beispielsweise über schlitzförmige Ausnehmungen (6c) zwischen den Kontaktflächen (6a) einschiebbar sind, stabilisiert. Nach Aufsetzen der Gehäusekappe (2) bildet das Dichtelement (6b) ein unverschiebliches Labyrinth um den Durchsteckenschlitz, so daß der Innenraum (3 a) gegen die Kammer (2 b) im Sinne eichrechtlicher Vorschriften dicht abgeschlossen ist.Through-slot in the partition (2c) guided with the contact surfaces arranged in the direction of the chamber protruding. A frame-like, adapted to the through-slot sealing element (6b) is close to the circuit board (6) and is stabilized by not shown transverse webs, for example, via slot-shaped recesses (6c) between the contact surfaces (6a). After placing the housing cap (2), the sealing element (6b) forms a non-displaceable labyrinth around the Durchsteckckenschlitz, so that the interior (3 a) against the chamber (2 b) is sealed in accordance with legal requirements.

Bei einem so vorbereiteten beglaubigten Elektrizitätszähler läßt sich auf die vorstehenden Kontaktflächen (6a) ein Steckverbinder (5 a) der Leiterplatte (6) aufschieben, so daß der elektrische Anschluß zwischen der Schaltungsplatine (6) und dem Rundsteuerempfänger hergestellt ist. An seiner Stelle lassen sich in der Kammer auf die gleit he Art beispielsweise auch ein Tarifschaltuhrenbaustein, ein Tomex-Modul oder ein Bus-Anschlußsystem unterbringen. Abschließend wird das Abdeckteil (4) aufgesetzt und vom Hersteller des Elektrizitätszählers oder auch vom EVU durch weitere Plombierschrauben (3c) vor unbefugtem Zugriff gesichert.In such a prepared accredited electricity meter can be on the projecting contact surfaces (6 a) a connector (5 a) of the printed circuit board (6) postpone, so that the electrical connection between the circuit board (6) and the ripple control receiver is made. In its place can be accommodated in the chamber on the slippery way, for example, a tariff clock module, a Tomex module or a bus connection system. Finally, the cover (4) is placed and secured by the manufacturer of the electricity meter or the RU by further Plombierschrauben (3c) from unauthorized access.

Anstelle der fest mit der Gehäusekappe verbundenen Trennwand (2c) läßt sich auch ein sepai is Teil, beispielsweise aus transparentem Werkstoff herstellen, und in einen Ausschnitt der Gehäusekappe so einsetzen, daß ein Teil des Innenraumes des umschlossenen Zählergehäuses - wie vorstehend beschrieben - als besondere Kammer für Zusatzgeräte nutzbar ist. Des weiteren ist die Lage der Kammer, die - wie in Fig. 1 gezeigt - etwa ein Drittel der Gehäusefrontfläche einnimmt, nicht auf das Ausführungsbeispiel begrenzt, sondern diese kann auch ebenso in der Gehäusemitte zwischen den üblicherweisew zwei Triebschichten oder auch an der Oberseite des Zählergehäuses angeordnet sein. In jedem Fall bleibt der I'lemmblockbercirh (1 a) frei, so daß hier beispielsweise zusätzlich ein elektronisches Maximumwerk angeordnet werden kann.Instead of firmly connected to the housing cap partition (2 c) can also be a sepai is part, for example made of transparent material, and insert into a section of the housing cap so that a part of the interior of the enclosed meter housing - as described above - as a special chamber can be used for additional devices. Furthermore, the position of the chamber, which - as shown in Fig. 1 - occupies about a third of the housing front surface, not limited to the embodiment, but this can also in the middle of the housing between the usual two drive layers or at the top of the meter housing be arranged. In any case, the I'lemmblockbercirh (1 a) remains free, so that here, for example, in addition to an electronic maximum unit can be arranged.

Claims

1. Electricity meter with a composed of a base plate and a housing cap counter housing that receives in its interior of the mandatory underlay Meßwerk, and with an attached to the meter housing additional housing, which does not contain the mandatory certification tariff devices or modules, in turn, in operative connection with the measuring unit are located, characterized in that the housing cap (2) in a partial region with a in the interior of the meter housing (3) immersed chamber (2 b) is provided, which closed to the interior (3 a) and at the front of the meter housing (3 ) accessible from the outside for the installation of additional equipment (printed circuit board 6) and with a cover (4) is closed.

2. Electricity meter according to claim 1, characterized in that the chamber (2 b) is formed directly in the housing cap (2).

3. Electricity meter according to claim 1, characterized in that the chamber (2 b) formed as a separate part and then used in a self-retaining manner in a section of the housing cap (2).

4. Electricity meter according to one of claims 1 to 3, characterized in that the chamber (2 b) is designed for installation of a ripple control receiver.

5. Electricity meter according to one of claims 1 to 3, characterized in that the chamber (2 b) is provided with ehern tariff switching module.

6. Electricity meter according to one of claims 1 to 3, characterized in that the chamber (2 b) for receiving electronic communication modules, such as a Temex .Modul, a bus connection system or similar devices is formed.

7. Electricity meter, in particular three-phase meter, according to one of claims 1 to 6, characterized in that the chamber (2 b) over the entire width of the housing cap (2) and is arranged on about one third of the housing length.

8. Electricity meter according to claim 7, characterized ^ indicates that the chamber (2 b) in the lower region of the housing cap (2) between a viewing window (2 a) and a terminal block portion (1 a) is arranged.

9. AIzrizitätszähler according to claim 7, characterized in that the chamber (2 b) between two carriers of the drive system in the housing cap (2) is arranged.

10. Electricity meter according to claim 7, characterized in that the chamber (2 b) on the upper side of the meter housing (3) in the housing cap (2) is arranged.

11. Electricity meter according to one of claims 1 to 10, characterized in that the chamber (2b) circumferentially with a labyrinthine edge formation (2d) is provided.

12. Electricity meter according to one of claims 1 to 11, characterized in that the transition from the cover (4) to the housing cap (2) on the front side of the meter housing (3) is flush with the non-recessed portion (2 ') of the housing cap formed.

13. Electricity meter according to one of claims 1 to 12, characterized in that in the partition (2c) of the chamber (2b) bushings for connectors (5a and 6a) to the interior (3a) of the meter housing (3) are arranged.

14. Electricity meter according to one of claims 1 to 13, characterized in that the chamber (2 b) a through-slot for a in the interior (3 a) of the meter housing (3) arranged, with the measuring unit or the meter terminals in operative connection circuit board (6 ), in which the chamber (2b) protruding part as a plug connection (contact surfaces 6a) is formed.

15. Electricity meter according to one of claims 1 to 14, characterized in that the projecting part of the circuit board (5) between the contact surfaces (6a) has comb-like recesses (6c) serving as clearances for transverse webs of a frame-shaped sealing element which can be pushed onto the circuit board (6) (6b) are formed.

16. Electricity meter according to one of claims 1 to 15, characterized in that the chamber (2 b) is made of a transparent, an optoelectronic scanning of the carrier disc mark enabling material.

17. Electricity meter according to one of claims 1 to 15, characterized in that the material thickness of the partition wall (2 c) between the chamber (2 b) and the interior (3a) of the meter housing (3) is designed for inductive scanning.

18. Electricity meter according to one of claims 1 to 17, characterized in that the cover part (4) made of transparent material i; t.

19. Electricity meter according to one of claims 1 to 18, characterized in that the cover part (4) by means of Plombierschrauben (3c) is itself sealable.

For this 1 page drawings

The invention relates to an electricity meter with a composed of a base plate and a housing cap counter housing that receives in its interior a subject to mandatory certification Meßwerk, and with an attached to the meter housing additional housing, which does not contain the mandatory certification tariff devices or modules, in turn, in operative connection with the measuring unit are located.

From DE 2712918 B2 an electricity meter is known, in which a special meter located in an additional housing is mechanically connected to the counter metering. In this case, the cross through a slot of the meter housing special meter is driven directly by the rotor shaft. To accommodate the additional housing, the housing cap is provided in the upper part with a stepped shoulder over which are freely accessible from the outside for mounting and for driving the special meter serving components of the measuring unit. A change or malfunction in this arrangement usually necessitates interventions on the measuring unit, which entail the loss of the calibration validity of the electricity meter. The invention has the object of providing an electricity meter of the type mentioned above to design that tariff devices and / or other additional components can be accommodated space saving and space-saving under special consideration of legal requirements and thus various types of flexible arrangements of tariff facilities are possible, which also has a significantly reduced overhaul without requiring re-authentication. This object is achieved by an electricity meter with the characterizing features of claim 1. Further developments and advantageous embodiments of the invention are specified in the subclaims. The invention has the advantage that space is created for additional equipment by integrating an additional closed comb number within the housing cap while maintaining the usual envelope dimensions of the meter housing. Thus, in the chamber control and communication modules such as a ripple control receiver, a Tarifschaltuhrenbaustein, a TEM exModul or a bus connection system accommodate, which may also be retrofitted or replaced at the installation of the electricity meter, without this loses its certification. Even with the installation of tariff devices that are to be measured together with the base meter as part of the authentication, the inventive arrangement requires a much lower overhaul and if necessary repair expenditures, since the electricity meter remains closed. Meßtechnische changes do not occur in such a process, so that the re-necessary authentication test is greatly facilitated. A flush-mounted with the nhht part of the housing cap cover part gives the meter housing formally a uniform appearance, with a suitable choice of material of the chamber or by the cover a sampling of the counter rotor is made possible despite spatial separation. As a further advantage, plug-in connections can be arranged directly in the chamber to the interior of the meter, which are guided, for example, with sufficient clearance in a through-slot and covered with a labyrinth seal. Such a multipolar connector in the chamber is synonymous with the puncture of additional terminals and allows the electrical connection between the located in the chamber attachment and the measuring unit and the modules within the enclosed meter housing.
Reference to the drawing, the invention of an embodiment is explained in more detail below.