EP1299605A2 - Frequency converter for an immersion vibrator - Google Patents

Frequency converter for an immersion vibrator

Info

Publication number
EP1299605A2
EP1299605A2 EP01945340A EP01945340A EP1299605A2 EP 1299605 A2 EP1299605 A2 EP 1299605A2 EP 01945340 A EP01945340 A EP 01945340A EP 01945340 A EP01945340 A EP 01945340A EP 1299605 A2 EP1299605 A2 EP 1299605A2
Authority
EP
European Patent Office
Prior art keywords
converter
frequency converter
housing
socket
voltage
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.)
Granted
Application number
EP01945340A
Other languages
German (de)
French (fr)
Other versions
EP1299605B1 (en
Inventor
Michael Steffen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Construction Equipment AG
Original Assignee
Wacker Construction Equipment AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wacker Construction Equipment AG filed Critical Wacker Construction Equipment AG
Publication of EP1299605A2 publication Critical patent/EP1299605A2/en
Application granted granted Critical
Publication of EP1299605B1 publication Critical patent/EP1299605B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/08—Internal vibrators, e.g. needle vibrators

Definitions

  • the invention relates to a frequency converter for an internal vibrator.
  • Internal vibrators are used to compact concrete that is still liquid.
  • a vibrating bottle belonging to the internal vibrator is immersed in which an electric motor and an imbalance driven by it at high speed are accommodated.
  • the engine To achieve the required engine speed and thus the compression frequency, the engine must be supplied with a special voltage whose frequency (eg 200 Hz) is above the network frequency provided by the public network.
  • the special voltage is provided by a special voltage network or by a frequency converter, which is provided either on the construction site in the form of a larger stationary unit or as an integrated component of the internal vibrator.
  • An internal vibrator with an integrated frequency converter is known from DE G 92 17 854.5.
  • CH 689598 A5 which forms the preamble of claim 1, describes an internal vibrator in which a converter can be separated from a protective tube carrying a vibrating bottle.
  • the protective hose is coupled to the converter via a specially designed electromechanical plug and socket construction, so that not only the special voltage can be transmitted, but a mechanically firm connection between the protective hose and the converter housing is guaranteed.
  • the special design of the electromechanical coupling means that the elements to be coupled must be precisely coordinated. It is not possible to use components that are not equipped for the special coupling.
  • the invention is based on the object of specifying a frequency converter which also makes it possible for internal vibrators without their own integrated frequency converter to use the advantages of internal vibrators with their own frequency converter on request.
  • a frequency converter according to the invention has a mobile converter housing with a converter circuit and is characterized in that a socket is provided which is supplied with the special voltage by the converter circuit and to which a plug part of the internal vibrator can be inserted.
  • a known internal vibrator which does not have its own frequency converter, with its mains plug serving as a plug part into the socket of the frequency converter, the socket being integrated in the converter housing or connected to the converter housing via a further supply line.
  • An internal vibrator without its own frequency converter can be converted into an internal vibrator with a frequency converter without incurring any special additional costs and without having to carry out any special construction work.
  • An advantageous embodiment of the invention is characterized in that the socket can be supplied with mains voltage as an alternative to the special voltage and that a changeover switch is provided for switching over between special and mains voltage.
  • the internal vibrator can also be connected to a special voltage network - as before - without the frequency converter having to be removed from it. This has the advantage that the frequency converter cannot be lost during busy construction site operation.
  • a securing device is provided in the region of the socket, with which the plug part of the internal vibrator is held in the socket. The safety device thus serves as train protection and enables the operator to pull the frequency converter on the internal vibrator behind him.
  • the converter housing advantageously has an elongated outer shape with minimized transverse dimensions, which considerably facilitates the ability of the converter housing to slip on the construction site, which is usually provided with numerous reinforcing bars.
  • the smooth handling of the frequency converter is further improved by a smooth outer skin of the converter housing.
  • An internal vibrator 1 known per se has a vibrating bottle 2 in which an elongated electric motor and an imbalance driven by the electric motor are accommodated.
  • the vibrating bottle 2 is connected to a switch housing 4 via a protective hose 3 of up to several meters in length.
  • the protective hose 3 also serves as an operating hose with which the vibrating bottle 2 is dipped into the concrete to be compacted by the operator.
  • a switch 5 is arranged in the switch housing 4, with which the electric motor in the vibrating bottle 2 can be switched on and off.
  • An electrical feed line 6 is led out of the switch housing 4, which leads into a mains plug 7.
  • Such an internal vibrator 1, known per se is usually connected with the mains plug 7 into a special voltage network or a stationary frequency converter available at the construction site.
  • a frequency converter 8 is provided, into which the power plug 7 is inserted.
  • the frequency converter 8 has a converter housing 9, in which an electronic converter circuit known per se is accommodated. Furthermore, an additional switch can be provided with which the current supply drove can be interrupted.
  • a feed line 10 is led from the converter housing 9 to a mains plug 11.
  • the power plug 11 can be plugged into a common public network available on the construction site.
  • a plug socket 12 is integrated in the converter housing 9, into which the mains plug 7 of the internal vibrator 1 can be inserted.
  • the frequency converter 8 draws the usual mains voltage (230 V or 400 V, 50 Hz) via the mains plug 11, which is led via the feed line 10 to the converter circuit in the converter housing 9. There the mains voltage is converted to a special voltage, which, for. B. can be 42 V with 200 Hz. The special voltage is applied to the socket 12, where it can reach the internal vibrator 1 via the mains plug 7.
  • the socket 12 it is also possible to arrange the socket 12 away from the converter housing 9 and to connect it to the converter housing 9 by means of an additional supply line.
  • the power plug 7 of the vibrator 1 is held in the socket 12 with the aid of a preferred mechanical securing device. It is thus possible for the operator to pull the vibrator 1 together with the frequency converter 8 on the protective tube 3 behind them, without the connection between the mains plug 7 and the frequency converter 8 being released.
  • the converter housing 9 has an elongated, slim outer shape with minimized transverse dimensions and a smooth outer skin in order to be able to be pulled through concrete reinforcements with as little resistance as possible. Inclined end walls 13 on the converter housing 9 further support the ability to slip.
  • the frequency converter 8 is particularly easy easy to handle on the go. Manageability is further supported if the converter housing 9 does not carry a handle that could impair the ability to slip.
  • the frequency converter 8 forms a compact unit together with the internal vibrator 1 and can be easily moved by the operator, conventional internal vibrators without an integrated frequency converter also have the operating advantages that were previously only reserved for internal vibrators with an integrated frequency converter.
  • Another embodiment of the invention enables the socket 12 to be supplied not only with the special voltage, but also optionally with the mains voltage.
  • a switch for switching between special and mains voltage is provided on the converter housing 9. While the current for generating the special voltage is passed through the converter circuit, after the switch is actuated, it is fed directly from the feed line 10 to the socket 12, that is to say only through the frequency converter 8. This makes it possible to connect the combination of internal vibrator 1 and frequency converter 8 to existing special voltage networks at least briefly, without having to separate internal vibrator 1 from frequency converter 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Dc-Dc Converters (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The invention relates to a frequency converter (8) for an immersion vibrator (1), comprising a mobile converter housing (9), and a converter circuit disposed in said converter housing (9) and adapted to convert an electrical supply voltage to a special voltage. The converter is further provided with a feed line (10) that is mechanically linked with the converter housing (9) and electrically connected to the converter circuit. At the end of said feed line facing away from the converter housing (9) a plug part (11) is disposed. The converter circuit feeds a connector (12) with the special voltage, a plug part (7) of the immersion vibrator (1) being insertable into said connector.

Description

Frequenzumformer für einen Innenrüttler Frequency converter for an internal vibrator
Die Erfindung betrifft gemäß dem Oberbegriff von Patentanspruch 1 einen Frequenzumformer für einen Innenrüttler.According to the preamble of claim 1, the invention relates to a frequency converter for an internal vibrator.
Innenrüttler werden zur Verdichtung von noch flüssigem Beton verwendet. Dazu wird in den Beton eine zu dem Innenrüttler gehörende Rüttelflasche eingetaucht, in der ein Elektromotor und eine von diesem mit hoher Drehzahl angetriebene Unwucht untergebracht sind. Zur Erreichung der erforder- liehen Motordrehzahl und damit Verdichtungsfrequenz muss der Motor mit einer Sonderspannung versorgt werden, deren Frequenz (z. B. 200 Hz) über der vom öffentlichen Netz bereitgestellten Netzfrequenz liegt.Internal vibrators are used to compact concrete that is still liquid. For this purpose, a vibrating bottle belonging to the internal vibrator is immersed in which an electric motor and an imbalance driven by it at high speed are accommodated. To achieve the required engine speed and thus the compression frequency, the engine must be supplied with a special voltage whose frequency (eg 200 Hz) is above the network frequency provided by the public network.
Es ist bekannt, dass die Sonderspannung durch ein Sonderspannungsnetz oder durch einen Frequenzumformer bereitgestellt wird, der entweder auf der Baustelle in Form einer größeren stationären Einheit oder als integrierter Bestandteil des Innenrüttlers vorgesehen ist. Ein Innenrüttler mit integriertem Frequenzumformer ist aus der DE G 92 17 854.5 bekannt.It is known that the special voltage is provided by a special voltage network or by a frequency converter, which is provided either on the construction site in the form of a larger stationary unit or as an integrated component of the internal vibrator. An internal vibrator with an integrated frequency converter is known from DE G 92 17 854.5.
In der den Oberbegriff von Patentanspruch 1 bildenden CH 689598 A5 ist ein Innenrüttler beschrieben, bei dem ein Umformer von einem eine Rüttelflasche tragenden Schutzschlauch abtrennbar ist. Die Kopplung des Schutz- schlauchs mit dem Umformer erfolgt über eine speziell ausgestaltete elektro- mechanische Stecker-Buchsenkonstruktion, so dass nicht nur die Sonder- Spannung übertragbar ist, sondern eine mechanisch feste Verbindung zwischen Schutzschlauch und Umformergehäuse gewährleistet ist. Die spezielle Ausgestaltung der elektromechanischen Kopplung bedingt, dass die zu koppelnden Elemente genau aufeinander abgestimmt sein müssen. Eine Nutzung von Bauelementen, die nicht für die spezielle Kopplung ausgerüstet sind, ist nicht möglich.CH 689598 A5, which forms the preamble of claim 1, describes an internal vibrator in which a converter can be separated from a protective tube carrying a vibrating bottle. The protective hose is coupled to the converter via a specially designed electromechanical plug and socket construction, so that not only the special voltage can be transmitted, but a mechanically firm connection between the protective hose and the converter housing is guaranteed. The special design of the electromechanical coupling means that the elements to be coupled must be precisely coordinated. It is not possible to use components that are not equipped for the special coupling.
Innenrüttler mit integriertem Frequenzumformer haben sich in der Praxis hervorragend bewährt. Nach wie vor jedoch werden auf Baustellen auch Innenrüttler eingesetzt, die keinen eigenen Frequenzumformer aufweisen und durch einen externen Frequenzumformer gespeist werden müssen. Diese Innenrüttler zeichnen sich vor allem durch ihre geringeren Einstandskosten aus. Allerdings setzen sie auf Baustellen entweder ein entsprechendes Son- derspannungsnetz mit niedrigem Spannungswert und hoher Spannungsfrequenz voraus, oder einen üblichen Frequenzumformer, der in Form eines sehr schweren Kastens an der Arbeitsstelle zur Verfügung gestellt werden muss. Die Bedienung eines derartigen Innenrüttlers wird dadurch sehr un- handlich.Internal vibrators with an integrated frequency converter have proven their worth in practice. However, vibrators that do not have their own frequency converter and have to be fed by an external frequency converter are still used on construction sites. These internal vibrators are characterized above all by their lower cost of ownership. However, on construction sites they either use a special voltage network with a low voltage value and high voltage frequency, or a conventional frequency converter, which must be provided in the form of a very heavy box at the work site. This makes the operation of such an internal vibrator very unwieldy.
Der Erfindung liegt die Aufgabe zugrunde, einen Frequenzumformer anzugeben, der es auch für Innenrüttler ohne eigenen integrierten Frequenzumformer ermöglicht, auf Wunsch die Vorteile von Innenrüttlern mit eigenem Frequenzumformer zu nutzen.The invention is based on the object of specifying a frequency converter which also makes it possible for internal vibrators without their own integrated frequency converter to use the advantages of internal vibrators with their own frequency converter on request.
Die Lösung der Aufgabe wird erfindungsgemäß durch einen Frequenzumformer gemäß Patentanspruch 1 gelöst. Vorteilhafte Weiterentwicklungen der Erfindung sind den abhängigen Ansprüchen zu entnehmen.The object is achieved according to the invention by a frequency converter according to claim 1. Advantageous further developments of the invention can be found in the dependent claims.
Ein erfindungsgemäßer Frequenzumformer weist ein mobiles Umformergehäuse mit einer Umformerschaltung auf und ist dadurch gekennzeichnet, dass eine von der Umformerschaltung mit der Sonderspannung gespeiste Steckbuchse vorgesehen ist, an der ein Steckerteil des Innenrüttlers ein- steckbar ist. Somit ist es erfindungsgemäß möglich, einen bekannten, keinen eigenen Frequenzumformer aufweisenden Innenrüttler mit seinem als Steckerteil dienenden Netzstecker in die Steckbuchse des Frequenzumformers einzustecken, wobei die Steckbuchse in das Umformergehäuse integriert oder über eine weitere Zuleitung mit dem Umformergehäuse verbun- den sein kann. Ohne dass besondere Mehrkosten entstehen, und ohne dass ein besonderer baulicher Aufwand betrieben werden muss, lässt sich damit ein Innenrüttler ohne eigenen Frequenzumformer in einen Innenrüttler mit Frequenzumformer umrüsten.A frequency converter according to the invention has a mobile converter housing with a converter circuit and is characterized in that a socket is provided which is supplied with the special voltage by the converter circuit and to which a plug part of the internal vibrator can be inserted. Thus, according to the invention, it is possible to insert a known internal vibrator, which does not have its own frequency converter, with its mains plug serving as a plug part into the socket of the frequency converter, the socket being integrated in the converter housing or connected to the converter housing via a further supply line. An internal vibrator without its own frequency converter can be converted into an internal vibrator with a frequency converter without incurring any special additional costs and without having to carry out any special construction work.
Eine vorteilhafte Ausführungsform der Erfindung ist dadurch gekennzeichnet, dass die Steckbuchse alternativ zu der Sonderspannung mit Netzspannung speisbar ist und dass ein Umschalter zum Umschalten zwischen Sonder- und Netzspannung vorgesehen ist. Damit kann der Innenrüttler auch - wie bisher - an ein Sonderspannungsnetz angeschlossen werden, ohne dass der Frequenzumformer von ihm abgebaut werden müsste. Dies hat den Vorteil, dass der Frequenzumformer nicht im lebhaften Baustellenbetrieb verloren gehen kann. Bei einer weiteren vorteilhaften Ausführungsform der Erfindung ist im Bereich der Steckbuchse eine Sicherungseinrichtung vorgesehen, mit der das Steckerteil des Innenrüttlers in der Steckbuchse gehalten wird. Die Sicherungseinrichtung dient somit als Zugsicherung und ermöglicht es dem Be- diener, den Frequenzumformer am Innenrüttler hinter sich herzuziehen. Vorteilhafterweise weist dazu das Umformergehäuse eine langgestreckte Au- j3enform mit minimierten Querabmessungen auf, was die Schlupffähigkeit des Umformergehäuses auf der meist mit zahlreichen Armierungseisen versehenen Baustelle erheblich erleichtert. Durch eine glatte Aussenhaut des Umformergehäuses wird die mobile Handhabung des Frequenzumformers zusätzlich verbessert.An advantageous embodiment of the invention is characterized in that the socket can be supplied with mains voltage as an alternative to the special voltage and that a changeover switch is provided for switching over between special and mains voltage. This means that the internal vibrator can also be connected to a special voltage network - as before - without the frequency converter having to be removed from it. This has the advantage that the frequency converter cannot be lost during busy construction site operation. In a further advantageous embodiment of the invention, a securing device is provided in the region of the socket, with which the plug part of the internal vibrator is held in the socket. The safety device thus serves as train protection and enables the operator to pull the frequency converter on the internal vibrator behind him. For this purpose, the converter housing advantageously has an elongated outer shape with minimized transverse dimensions, which considerably facilitates the ability of the converter housing to slip on the construction site, which is usually provided with numerous reinforcing bars. The smooth handling of the frequency converter is further improved by a smooth outer skin of the converter housing.
Diese und weitere Vorteile und Merkmale der Erfindung werden nachfolgend anhand eines Beispiels unter Zuhilfenahme der begleitenden Figuren näher erläutert. Die einzige Figur zeigt einen erfindungsgemäßen Frequenzumformer mit angeschlossenem Innenrüttler.These and other advantages and features of the invention are explained in more detail below using an example with the aid of the accompanying figures. The single figure shows a frequency converter according to the invention with a connected internal vibrator.
Ein an sich bekannter Innenrüttler 1 weist eine Rüttelflasche 2 auf, in der ein langgestreckter Elektromotor und eine von dem Elektromotor angetriebe- ne Unwucht untergebracht sind. Die Rüttelflasche 2 ist über einen bis zu mehrere Meter langen Schutzschlauch 3 mit einem Schaltergehäuse 4 verbunden. Der Schutzschlauch 3 dient auch als Bedienungsschlauch, mit dem die Rüttelflasche 2 vom Bediener in den zu verdichtenden Beton eingetunkt wird. In dem Schaltergehäuse 4 ist ein Schalter 5 angeordnet, mit dem sich der Elektromotor in der Rüttelflasche 2 ein- und ausschalten lässt. Aus dem Schaltergehäuse 4 ist eine elektrische Zuleitung 6 herausgeführt, die in einen Netzstecker 7 mündet. Üblicherweise wird ein derartiger, an sich bekannter Innenrüttler 1 mit dem Netzstecker 7 in ein an der Baustelle vorhandenes Sonderspannungsnetz oder einen stationären Frequenzumformer angeschlossen.An internal vibrator 1 known per se has a vibrating bottle 2 in which an elongated electric motor and an imbalance driven by the electric motor are accommodated. The vibrating bottle 2 is connected to a switch housing 4 via a protective hose 3 of up to several meters in length. The protective hose 3 also serves as an operating hose with which the vibrating bottle 2 is dipped into the concrete to be compacted by the operator. A switch 5 is arranged in the switch housing 4, with which the electric motor in the vibrating bottle 2 can be switched on and off. An electrical feed line 6 is led out of the switch housing 4, which leads into a mains plug 7. Such an internal vibrator 1, known per se, is usually connected with the mains plug 7 into a special voltage network or a stationary frequency converter available at the construction site.
Erfindungsgemäß wird aber ein Frequenzumformer 8 bereitgestellt, in den der Netzstecker 7 eingesteckt ist.According to the invention, however, a frequency converter 8 is provided, into which the power plug 7 is inserted.
Der Frequenzumformer 8 weist ein Umformergehäuse 9 auf, in dem eine an sich bekannte elektronische Umformerschaltung untergebracht ist. Weiterhin kann ein zusätzlicher Schalter vorgesehen sein, mit dem die Stromzu- fuhr unterbrochen werden kann.The frequency converter 8 has a converter housing 9, in which an electronic converter circuit known per se is accommodated. Furthermore, an additional switch can be provided with which the current supply drove can be interrupted.
Aus dem Umformergehäuse 9 ist eine Zuleitung 10 zu einem Netzstecker 11 geführt. Der Netzstecker 11 lässt sich in ein übliches, auf der Baustelle vor- handenes öffentliches Netz einstecken.A feed line 10 is led from the converter housing 9 to a mains plug 11. The power plug 11 can be plugged into a common public network available on the construction site.
Auf der dem Netzstecker 11 und der Zuleitung 10 abgewandten Seite des Umformergehäuses 9 ist in dem Umformergehäuse 9 eine Steckbuchse 12 integriert, in die sich der Netzstecker 7 des Innenrüttlers 1 einstecken lässt.On the side of the converter housing 9 facing away from the mains plug 11 and the feed line 10, a plug socket 12 is integrated in the converter housing 9, into which the mains plug 7 of the internal vibrator 1 can be inserted.
Der Frequenzumformer 8 bezieht über den Netzstecker 11 übliche Netzspannung (230 V bzw. 400 V, 50 Hz), die über die Zuleitung 10 zur Umformerschaltung im Umformergehäuse 9 geführt wird. Dort wird die Netzspannung auf eine Sonderspannung umgeformt, die z. B. 42 V mit 200 Hz betragen kann. Die Sonderspannung wird an die Steckbuchse 12 angelegt, wo sie über den Netzstecker 7 in den Innenrüttler 1 gelangen kann.The frequency converter 8 draws the usual mains voltage (230 V or 400 V, 50 Hz) via the mains plug 11, which is led via the feed line 10 to the converter circuit in the converter housing 9. There the mains voltage is converted to a special voltage, which, for. B. can be 42 V with 200 Hz. The special voltage is applied to the socket 12, where it can reach the internal vibrator 1 via the mains plug 7.
Alternativ zu der in der Figur gezeigten Ausführungsform ist es auch möglich, die Steckbuchse 12 abseits vom Umformergehäuse 9 anzuordnen und mittels einer zusätzlichen Zuleitung mit dem Umformergehäuse 9 zu verbinden.As an alternative to the embodiment shown in the figure, it is also possible to arrange the socket 12 away from the converter housing 9 and to connect it to the converter housing 9 by means of an additional supply line.
Besonders zweckmäßig ist es, wenn der Netzstecker 7 des Innenrüttlers 1 mit Hilfe einer vorzugsweisen mechanischen Sicherungseinrichtung in der Steckbuchse 12 gehalten wird. Damit ist es dem Bediener möglich, den Innenrüttler 1 zusammen mit dem Frequenzumformer 8 am Schutzschlauch 3 hinter sich herzuziehen, ohne dass die Verbindung zwischen Netzstecker 7 und Frequenzumformer 8 gelöst wird.It is particularly expedient if the power plug 7 of the vibrator 1 is held in the socket 12 with the aid of a preferred mechanical securing device. It is thus possible for the operator to pull the vibrator 1 together with the frequency converter 8 on the protective tube 3 behind them, without the connection between the mains plug 7 and the frequency converter 8 being released.
Das Umformergehäuse 9 weist eine langgestreckte, schlanke Außenform mit minimierten Querabmessungen und glatter Außenhaut auf, um möglichst widerstandslos durch Betonarmierungen gezogen werden zu können. Schrägstehende Stirnwände 13 am Umformergehäuse 9 unterstützen die Schlupffähigkeit noch.The converter housing 9 has an elongated, slim outer shape with minimized transverse dimensions and a smooth outer skin in order to be able to be pulled through concrete reinforcements with as little resistance as possible. Inclined end walls 13 on the converter housing 9 further support the ability to slip.
Durch den elektronischen Aufbau der Umformerschaltung und die schlanke Form des Umformergehäuses lässt sich der Frequenzumformer 8 besonders leicht mobil handhaben. Die Handhabbarkeit wird noch unterstützt, wenn das Umformergehäuse 9 keinen Handgriff trägt, der die Schlupffähigkeit beeinträchtigen könnte.Due to the electronic structure of the converter circuit and the slim shape of the converter housing, the frequency converter 8 is particularly easy easy to handle on the go. Manageability is further supported if the converter housing 9 does not carry a handle that could impair the ability to slip.
Dadurch, dass der Frequenzumformer 8 zusammen mit dem Innenrüttler 1 eine kompakte Einheit bildet und vom Bediener leicht bewegt werden kann, eröffnen sich auch konventionellen Innenrüttlern ohne integriertem Frequenzumformer die Bedienungsvorteile, die bisher nur Innenrüttlern mit integriertem Frequenzumformer vorbehalten waren.Because the frequency converter 8 forms a compact unit together with the internal vibrator 1 and can be easily moved by the operator, conventional internal vibrators without an integrated frequency converter also have the operating advantages that were previously only reserved for internal vibrators with an integrated frequency converter.
Eine in der Figur nicht dargestellte andere Ausführungsform der Erfindung ermöglicht es, dass die Steckbuchse 12 nicht nur mit der Sonderspannung, sondern wahlweise auch mit Netzspannung gespeist werden kann. Dazu ist am Umformergehäuse 9 ein Umschalter zum Umschalten zwischen Sonder- und Netzspannung vorgesehen. Während der Strom zum Erzeugen der Sonderspannung über die Umformerschaltung geführt wird, wird er nach Betätigen des Umschalters direkt von der Zuleitung 10 zur Steckbuchse 12 geführt, also durch den Frequenzumformer 8 lediglich durchgeleitet. Dies ermöglicht es, die Kombination aus Innenrüttler 1 und Frequenzumformer 8 wenigstens kurzzeitig auch an bestehende Sonderspannungsnetze anzu- schliejBen, ohne dass der Innenrüttler 1 vom Frequenzumformer 8 getrennt werden müsste. Another embodiment of the invention, not shown in the figure, enables the socket 12 to be supplied not only with the special voltage, but also optionally with the mains voltage. For this purpose, a switch for switching between special and mains voltage is provided on the converter housing 9. While the current for generating the special voltage is passed through the converter circuit, after the switch is actuated, it is fed directly from the feed line 10 to the socket 12, that is to say only through the frequency converter 8. This makes it possible to connect the combination of internal vibrator 1 and frequency converter 8 to existing special voltage networks at least briefly, without having to separate internal vibrator 1 from frequency converter 8.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Frequenzumformer (8) für einen Innenrüttler (1), mit einem mobilen Umformergehäuse (9); - einer in dem Umformergehäuse (9) angeordneten Umformerschaltung zum1. Frequency converter (8) for an internal vibrator (1), with a mobile converter housing (9); - A converter circuit arranged in the converter housing (9)
Umformen einer elektrischen Netzspannung in eine Sonderspannung; einer mit dem Umformergehäuse (9) mechanisch verbundenen und mit der Umformerschaltung elektrisch gekoppelten Zuleitung (10), an deren dem Umformergehäuse (9) abgewandten Ende ein Steckerteil (11) vorgesehen ist; und mit - einer von der Umformerschaltung mit der Sonderspannung gespeistenConverting an electrical mains voltage into a special voltage; a feed line (10) mechanically connected to the converter housing (9) and electrically coupled to the converter circuit, on the end of which a plug part (11) is provided facing away from the converter housing (9); and with - one fed by the converter circuit with the special voltage
Steckbuchse (12), dadurch gekennzeichnet, dass an der Steckbuchse (12) ein Netzstecker (7) des Innenrüttlers (1) einsteckbar ist.Socket (12), characterized in that a mains plug (7) of the internal vibrator (1) can be inserted into the socket (12).
2. Frequenzumformer nach Anspruch 1, dadurch gekennzeichnet, dass die Steckbuchse (12) in das Umformergehäuse (9) integriert ist.2. Frequency converter according to claim 1, characterized in that the socket (12) is integrated in the converter housing (9).
3. Frequenzumformer nach Anspruch 1, dadurch gekennzeichnet, dass die Steckbuchse (12) über eine weitere Zuleitung mit dem Umformergehäuse (9) ver- bunden ist.3. Frequency converter according to claim 1, characterized in that the socket (12) is connected to the converter housing (9) via a further feed line.
4. Frequenzumformer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Steckbuchse (12) alternativ zu der Sonderspannung mit Netzspannung speisbar ist und dass ein Umschalter zum Umschalten zwischen Sonder- und Netzspannung vorgesehen ist.4. Frequency converter according to one of claims 1 to 3, characterized in that the socket (12) can be fed alternatively to the special voltage with mains voltage and that a switch is provided for switching between the special and mains voltage.
5. Frequenzumformer nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass im Bereich der Steckbuchse (12) eine Sicherungseinrichtung vorgesehen ist, mit der das Steckerteil (7) des Innenrüttlers (1) in der Steckbuchse (12) gehalten wird.5. Frequency converter according to one of claims 1 to 4, characterized in that in the region of the socket (12) a safety device is provided with which the plug part (7) of the internal vibrator (1) is held in the socket (12).
6. Frequenzumformer nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Umformergehäuse (9) eine langgestreckte Außenform mit minimierten Querabmessungen aufweist.6. Frequency converter according to one of claims 1 to 5, characterized in that the converter housing (9) has an elongated outer shape with minimized transverse dimensions.
7. Frequenzumformer nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das Umformergehäuse (9) eine glatte Außenhaut aufweist und eine mobile Handhabung des Frequenzumformers (8) erlaubt.7. Frequency converter according to one of claims 1 to 6, characterized in that the converter housing (9) has a smooth outer skin and a mobile handling of the frequency converter (8) allowed.
8. Frequenzumformer nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass das Umformergehäuse (9) von dem Innenrüttler (1) über den Boden ziehbar ist.8. Frequency converter according to one of claims 5 to 7, characterized in that the converter housing (9) from the internal vibrator (1) can be pulled over the floor.
9. Frequenzumformer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Umformerschaltung eine elektronische Umformerschaltung ist. 9. Frequency converter according to one of claims 1 to 8, characterized in that the converter circuit is an electronic converter circuit.
EP01945340A 2000-07-07 2001-07-05 Frequency converter for an immersion vibrator Expired - Lifetime EP1299605B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10033137 2000-07-07
DE10033137A DE10033137A1 (en) 2000-07-07 2000-07-07 Frequency converter for an internal vibrator
PCT/EP2001/007721 WO2002004764A2 (en) 2000-07-07 2001-07-05 Frequency converter for an immersion vibrator

Publications (2)

Publication Number Publication Date
EP1299605A2 true EP1299605A2 (en) 2003-04-09
EP1299605B1 EP1299605B1 (en) 2007-09-05

Family

ID=7648183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01945340A Expired - Lifetime EP1299605B1 (en) 2000-07-07 2001-07-05 Frequency converter for an immersion vibrator

Country Status (6)

Country Link
US (2) US7498691B2 (en)
EP (1) EP1299605B1 (en)
JP (1) JP2004502887A (en)
DE (2) DE10033137A1 (en)
ES (1) ES2290147T3 (en)
WO (1) WO2002004764A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19913077C2 (en) * 1999-03-23 2003-06-12 Wacker Construction Equipment Internal vibrator with measuring system
DE10033137A1 (en) * 2000-07-07 2002-01-31 Wacker Werke Kg Frequency converter for an internal vibrator
DE10101277B4 (en) * 2001-01-12 2006-11-02 Wacker Construction Equipment Ag High-frequency internal vibrator with cooled electronic frequency converter
EP1316655A1 (en) * 2001-11-28 2003-06-04 Industrias Techno-Flex, S.A. Vibrating device for concrete compacting
ES2243124B1 (en) * 2003-12-30 2006-07-16 Hervisa, S.A. VIBRATOR FOR CONCRETE COMPACTING.
CN110242052A (en) * 2019-05-30 2019-09-17 诸暨市辉煌五金有限公司 Split type vibratory concrete device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2427111A (en) * 1942-04-14 1947-09-09 Remington Rand Inc Converter
US3410528A (en) * 1966-10-17 1968-11-12 Koehring Co Concrete vibrator
JPH0833079B2 (en) * 1988-01-29 1996-03-29 三笠産業株式会社 Concrete vibrator
US5202612A (en) * 1988-01-29 1993-04-13 Sinano Electric Co., Ltd. Concrete vibrator
US5019767A (en) * 1989-02-16 1991-05-28 Nintendo Co., Ltd. Portable power supply
DE9217854U1 (en) * 1992-12-30 1993-03-04 Wacker-Werke Gmbh & Co Kg, 8077 Reichertshofen, De
US5612580A (en) * 1995-10-10 1997-03-18 Northrop Grumman Corporation Uninterruptible power system
DE19722107C1 (en) * 1997-05-27 1998-10-01 Wacker Werke Kg Electrical cable reel with integrated frequency converter esp for concrete compacting
CH689598A5 (en) * 1998-06-09 1999-06-30 Msz Motoren Service Ag Zuerich Converter-fed immersion vibrator for use on building site
DE10033137A1 (en) * 2000-07-07 2002-01-31 Wacker Werke Kg Frequency converter for an internal vibrator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0204764A2 *

Also Published As

Publication number Publication date
JP2004502887A (en) 2004-01-29
US20030012041A1 (en) 2003-01-16
US7498691B2 (en) 2009-03-03
WO2002004764A2 (en) 2002-01-17
WO2002004764A3 (en) 2002-06-20
US7385315B2 (en) 2008-06-10
DE50112968D1 (en) 2007-10-18
DE10033137A1 (en) 2002-01-31
EP1299605B1 (en) 2007-09-05
ES2290147T3 (en) 2008-02-16
US20060158038A1 (en) 2006-07-20

Similar Documents

Publication Publication Date Title
EP0604723B1 (en) Internal vibrator fed by a transformer
EP1165907B1 (en) Internal vibrator with a measuring system
DE19722107C1 (en) Electrical cable reel with integrated frequency converter esp for concrete compacting
EP1163409B1 (en) Poker vibrator with frequency converter
EP1299605B1 (en) Frequency converter for an immersion vibrator
DE102018118563A1 (en) Internal vibrator with DC voltage supply
DE2745109A1 (en) ELECTRIC MACHINE, IN PARTICULAR HAND TOOL MACHINE
DE10164304B4 (en) Cable reel with frequency converter device
EP0916785A1 (en) Vibrator for compacting concrete
CH689598A5 (en) Converter-fed immersion vibrator for use on building site
EP0103145A2 (en) Transportable shower installation for camping or similar purposes
DE3825067C1 (en) Device for making roadwork sites safe
DE19824372A1 (en) Vibrator for concrete compaction
EP3915746A1 (en) Mixer truck with electrically driven mixing drum and device for emergency power supply thereto
DE102021105108A1 (en) Truck mixer with electric drum drive
DE10059467A1 (en) Concrete compacting arrangement with radio controlled external vibrators
CH627001A5 (en) High-voltage test instrument
DE2347555A1 (en) Power supply system for concrete processing appts. - has cables and compressed air pipes on overhanging support of pumping pipeline
DE19903000A1 (en) Frequency converter e.g. for internal vibrators used for concrete compression, has mains socket on housing supplied with mains frequency via mains cable, spooling arrangement for mains cable, separate socket supplied with special frequency
DE3505406A1 (en) Toothbrush having a drive shaft and an electrical plug-in connection
DD244659A5 (en) GENERATORS FOR BUILDING SITES
DE7145754U (en) Battery-powered electronic measuring and / or recording device, in particular electrocardiograph
DE1882323U (en) GRINDING DEVICE FOR MOTORBAND SAW CHAINS.
DD223865A1 (en) DEVICE AND METHOD FOR PRODUCING ELECTRICALLY CONDUCTED TERMINAL CONNECTIONS TO TENANGE MESH
DD218050A1 (en) MULTIPLEXER KC ADAPTER

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020725

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH CY DE ES FR IT LI SE

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RBV Designated contracting states (corrected)

Designated state(s): DE ES FR IT SE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT SE

REF Corresponds to:

Ref document number: 50112968

Country of ref document: DE

Date of ref document: 20071018

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2290147

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20080606

REG Reference to a national code

Ref country code: FR

Ref legal event code: CJ

Ref country code: FR

Ref legal event code: CD

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE

Effective date: 20111205

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: WACKER NEUSON PRODUKTION GMBH & CO.KG

Effective date: 20120208

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50112968

Country of ref document: DE

Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50112968

Country of ref document: DE

Representative=s name: MUELLER HOFFMANN & PARTNER PATENTANWAELTE MBB, DE

Effective date: 20120326

Ref country code: DE

Ref legal event code: R081

Ref document number: 50112968

Country of ref document: DE

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE

Free format text: FORMER OWNER: WACKER NEUSON SE, 80809 MUENCHEN, DE

Effective date: 20120326

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120724

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130705

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20150723

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20150724

Year of fee payment: 15

Ref country code: FR

Payment date: 20150730

Year of fee payment: 15

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160706

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170724

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160706

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181128

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50112968

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190201