WO2006045291A1 - Switch and protective device for an electric motor - Google Patents

Switch and protective device for an electric motor Download PDF

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Publication number
WO2006045291A1
WO2006045291A1 PCT/DE2005/001919 DE2005001919W WO2006045291A1 WO 2006045291 A1 WO2006045291 A1 WO 2006045291A1 DE 2005001919 W DE2005001919 W DE 2005001919W WO 2006045291 A1 WO2006045291 A1 WO 2006045291A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric motor
protective device
electronic unit
switching device
housing
Prior art date
Application number
PCT/DE2005/001919
Other languages
German (de)
French (fr)
Inventor
Petra MÖNIUS
Gerhard Starklauf
Dietrich George
Original Assignee
Conti Temic Microelectronic Gmbh
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 Conti Temic Microelectronic Gmbh filed Critical Conti Temic Microelectronic Gmbh
Priority to DE112005002159T priority Critical patent/DE112005002159A5/en
Priority to EP05813052A priority patent/EP1805875A1/en
Publication of WO2006045291A1 publication Critical patent/WO2006045291A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements

Definitions

  • the invention relates to an electric motor with an electronics unit and a housing.
  • Switching devices consist in the simplest case of relays that control, for example, different power levels of an electric motor.
  • the relays are located either in a relay box, such as a relay box of a vehicle, or in a separate electrical assembly, which in turn is housed in a separate housing.
  • the switching device or electronics of a vehicle includes individual components such as plug contacts to the electrical system, plug contacts to the control unit, plug contacts to the engine and the vehicle ground. Since the electric motor usually already has a compact design, switching device and a necessary protective device can not be integrated into the electric motor.
  • the object of the invention is to develop an electronic unit such that, in addition to a switching device, it also comprises a protective device, which are arranged in a housing.
  • the electronic unit has at least one switching device and at least one protective device.
  • the switching device is used for controlling and / or regulating the electric motor.
  • the protective device detects binding and / or blocking of the electric motor.
  • the switching and protection devices are thus arranged in an electronics unit and a housing.
  • the electronics unit may also contain other electronic components.
  • the electronic unit has a printed circuit board on which the switching electronics and the protective circuit are arranged.
  • further electronic components can be arranged on the printed circuit board.
  • the printed circuit board preferably has connecting elements.
  • the switching device and the protection circuit are connected to each other by means of one of these connecting elements.
  • the housing is sealed against environmental influences, such as dirt or water, and has a pressure compensation element.
  • the electric motor and the electronics unit are firmly connected.
  • a connection may, for example, be a cable element, such as a motor cable.
  • the electric motor is preferably designed as a DC motor, in particular electronically commutated DC motor.
  • the electric motor is provided as a radiator fan motor for installation in a motor vehicle.
  • the integrated switching and protective device protects the electric motor against overload as well as thermal damage or even destruction. Furthermore, the number of interfaces is reduced, since now there is only one interface between the electric motor and the electronics unit. In addition, the assembly effort is reduced because no longer electronics unit and separate protection device are to be mounted, but only one electronic unit.
  • Fig. 1 is a schematic representation of an electronic unit according to the state of
  • Fig. 2 is a schematic representation of an electronic unit with integrated
  • Fig. 3 shows an electric motor according to the invention with electronics unit.
  • Fig. 1 shows a schematic representation of an electronic unit 3 according to the prior art.
  • the electric motor 1 is connected by means of plug 4 with the electronic unit 3, which has the switching device 2.
  • the control of the switching device or electronics 2 via a control signal, which is supplied via the input 5 of the switching device 2.
  • the switching electronics 2 is supplied with the necessary voltage.
  • the ground terminal 7 is shown, with which the electric motor 1 is connected via the plug 4.
  • the electronic unit 3 has no integrated protection circuit.
  • the switching device 2 shows a schematic representation of an electronic unit 3 with integrated switching device 2 and protective device 12.
  • the switching device 2 is used for switching the electric motor 1.
  • the protective device 12 detects binding and / or blocking of the electric motor 1.
  • the switching device 2 and the protective circuit 12 are thus arranged in an electronics unit 3.
  • the electric motor 1 is connected via the connecting element 9 with the electronic unit 3.
  • the control of the switching device 2 via the control signal 5. Via the terminal 6, the switching device 2 is supplied with the necessary voltage. Furthermore, the ground terminal 7 is shown.
  • FIG. 3 shows an electric motor 1 according to the invention with the electronic unit 3.
  • the electronic unit is arranged in the housing 8.
  • the switching and protective devices 2, 12, not shown separately, are thus arranged in an electronic unit 3 and a housing 8.
  • the housing 8 is sealed against environmental influences, such as dirt or water, and has a pressure compensation element, not shown.
  • the electronic components power connector 10 and signal connector 11 are shown.
  • the electric motor 1 and the electronic unit 3 are fixedly connected to each other by means of a connecting element 9, in particular a cable element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)

Abstract

The invention relates to an electric motor (1) with an electronic unit (3) and a housing (8), whereby the electronic unit (3) comprises at least one switch device (2) and at least one protective device (12).

Description

Schalt- und Schutzeinrichtung für einen ElektromotorSwitching and protective device for an electric motor
Beschreibungdescription
Die Erfindung betrifft einen Elektromotor mit einer Elektronikeinheit und einem Gehäuse.The invention relates to an electric motor with an electronics unit and a housing.
Derartige Elektronikeinheiten weisen u. a. Schalteinrichtungen auf. Schalteinrichtungen bzw. Schaltelektroniken bestehen im einfachsten Fall aus Relais, die beispielsweise verschiedene Leistungsstufen eines Elektromotors steuern. Die Relais befinden sich entweder in einer Relaisbox, beispielsweise einer Relaisbox eines Fahrzeuges, oder in einer separaten elektrischen Baugruppe, die wiederum in einem separaten Gehäuse untergebracht ist.Such electronic units have u. a. Switching devices. Switching devices or switching electronics consist in the simplest case of relays that control, for example, different power levels of an electric motor. The relays are located either in a relay box, such as a relay box of a vehicle, or in a separate electrical assembly, which in turn is housed in a separate housing.
Die Schalteinrichtung bzw. -elektronik eines Fahrzeugs beispielsweise umfasst einzelne Komponenten wie Steckkontakte zum Bordnetz, Steckkontakte zur Steuerungseinheit, Steckkontakte zum Motor und zur Fahrzeugmasse. Da der Elektromotor meist bereits eine kompakte Bauweise aufweist, können Schalteinrichtung sowie eine notwendige Schutzeinrichtung nicht in den Elektromotor integriert werden.The switching device or electronics of a vehicle, for example, includes individual components such as plug contacts to the electrical system, plug contacts to the control unit, plug contacts to the engine and the vehicle ground. Since the electric motor usually already has a compact design, switching device and a necessary protective device can not be integrated into the electric motor.
Nachteile derartiger Anordnungen sind somit eine fehlende Schutzeinrichtung gegen Schwergängigkeit und/oder Blockierung des Elektromotors und eine aufwändige Verkabelung mit unter Umständen langen Kabelverbindungen und mehreren Verbindungselementen. Aufgabe der Erfindung ist es, eine Elektronikeinheit derart weiterzubilden, dass sie neben einer Schalteinrichtung auch eine Schutzeinrichtung umfasst, die in einem Gehäuse angeordnet sind.Disadvantages of such arrangements are thus a lack of protection against sluggishness and / or blocking of the electric motor and a complex wiring with possibly long cable connections and several connecting elements. The object of the invention is to develop an electronic unit such that, in addition to a switching device, it also comprises a protective device, which are arranged in a housing.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind den Unteransprüchen zu entnehmen.This object is solved by the features of patent claim 1. Advantageous developments can be found in the dependent claims.
Die Elektronikeinheit weist zumindest eine Schalteinrichtung und zumindest eine Schutzeinrichtung auf. Die Schalteinrichtung dient zur Steuerung und/oder Regelung des Elektromotors. Die Schutzeinrichtung detektiert Schwergängigkeit und/oder Blockierung des Elektromotors. Die Schalt- und Schutzeinrichtungen sind somit in einer Elektronikeinheit und einem Gehäuse angeordnet. Die Elektronikeinheit kann aber noch weitere elektronische Bauelemente enthalten.The electronic unit has at least one switching device and at least one protective device. The switching device is used for controlling and / or regulating the electric motor. The protective device detects binding and / or blocking of the electric motor. The switching and protection devices are thus arranged in an electronics unit and a housing. The electronics unit may also contain other electronic components.
Vorteilhafterweise weist die Elektronikeinheit eine Leiterplatte auf, auf der die Schaltelektronik und die Schutzschaltung angeordnet sind. Auf der Leiterplatte können selbstverständlich noch weitere elektronische Bauelemente angeordnet sein.Advantageously, the electronic unit has a printed circuit board on which the switching electronics and the protective circuit are arranged. Of course, further electronic components can be arranged on the printed circuit board.
Die Leiterplatte weist vorzugsweise Verbindungselemente auf. Dabei sind die Schalteinrichtung und die Schutzschaltung mittels eines dieser Verbindungselemente miteinander verbunden.The printed circuit board preferably has connecting elements. In this case, the switching device and the protection circuit are connected to each other by means of one of these connecting elements.
Das Gehäuse ist gegen Umwelteinflüsse, wie beispielsweise Schmutz oder Wasser, abgedichtet und weist ein Druckausgleichselement auf.The housing is sealed against environmental influences, such as dirt or water, and has a pressure compensation element.
Vorteilhafterweise sind der Elektromotor und die Elektronikeinheit fest miteinander verbunden. Solch eine Verbindung kann beispielsweise ein Kabelelement, wie ein Motorkabel, sein. Der Elektromotor ist vorzugsweise als Gleichstrommotor, insbesondere elektronisch kommutierter Gleichstrommotor, ausgebildet.Advantageously, the electric motor and the electronics unit are firmly connected. Such a connection may, for example, be a cable element, such as a motor cable. The electric motor is preferably designed as a DC motor, in particular electronically commutated DC motor.
Insbesondere ist der Elektromotor als Kühlerlüftermotor für den Einbau in einem Kraftfahrzeug vorgesehen.In particular, the electric motor is provided as a radiator fan motor for installation in a motor vehicle.
Durch die integrierte Schalt- und Schutzeinrichtung wird der Elektromotor gegen Überlastung sowie thermische Schädigung oder gar Zerstörung geschützt. Ferner reduziert sich die Anzahl der Schnittstellen, da nunmehr nur noch eine Schnittstelle zwischen Elektromotor und Elektronikeinheit besteht. Außerdem wird der Montageaufwand reduziert, da nicht mehr Elektronikeinheit und separate Schutzeinrichtung zu montieren sind, sondern nur noch eine Elektronikeinheit. The integrated switching and protective device protects the electric motor against overload as well as thermal damage or even destruction. Furthermore, the number of interfaces is reduced, since now there is only one interface between the electric motor and the electronics unit. In addition, the assembly effort is reduced because no longer electronics unit and separate protection device are to be mounted, but only one electronic unit.
- A -- A -
In der nachfolgenden Beschreibung werden die Merkmale und Einzelheiten der Erfindung in Zusammenhang mit den beigefügten Zeichnungen anhand von Ausführungsbeispielen näher erläutert. Dabei sind in einzelnen Varianten beschriebene Merkmale und Zusammenhänge grundsätzlich auf alle Ausführungsbeispiele übertragbar. In den Zeichnungen zeigen:In the following description, the features and details of the invention in conjunction with the accompanying drawings with reference to embodiments will be explained in more detail. In this case, features and relationships described in individual variants can in principle be applied to all exemplary embodiments. In the drawings show:
Fig. 1 eine schematische Darstellung einer Elektronikeinheit gemäß Stand derFig. 1 is a schematic representation of an electronic unit according to the state of
Technik;Technology;
Fig. 2 eine schematische Darstellung einer Elektronikeinheit mit integrierterFig. 2 is a schematic representation of an electronic unit with integrated
Schalt- und Schutzeinrichtung;Switching and protective device;
Fig. 3 eine erfindungsgemäßen Elektromotor mit Elektronikeinheit.Fig. 3 shows an electric motor according to the invention with electronics unit.
Zur besseren Verständlichkeit der Beschreibung werden für gleiche Elemente in den Figuren gleiche Bezugszeichen verwendet. For better understanding of the description, like reference numerals are used for like elements in the figures.
Fig. 1 zeigt eine schematische Darstellung einer Elektronikeinheit 3 gemäß Stand der Technik. Der Elektromotor 1 ist mittels Stecker 4 mit der Elektronikeinheit 3, die die Schalteinrichtung 2 aufweist, verbunden. Die Steuerung der Schalteinrichtung bzw. -elektronik 2 erfolgt über ein Steuerungssignal, das über den Eingang 5 der Schalteinrichtung 2 zugeführt wird. Über den Anschluss 6 wird die Schaltelektronik 2 mit der notwendigen Spannung versorgt. Weiterhin ist der Masseanschluss 7 dargestellt, mit dem der Elektromotor 1 über die Stecker 4 verbunden ist. Die Elektronikeinheit 3 weist keine integrierte Schutzschaltung auf.Fig. 1 shows a schematic representation of an electronic unit 3 according to the prior art. The electric motor 1 is connected by means of plug 4 with the electronic unit 3, which has the switching device 2. The control of the switching device or electronics 2 via a control signal, which is supplied via the input 5 of the switching device 2. About the connection 6, the switching electronics 2 is supplied with the necessary voltage. Furthermore, the ground terminal 7 is shown, with which the electric motor 1 is connected via the plug 4. The electronic unit 3 has no integrated protection circuit.
Fig. 2 zeigt eine schematische Darstellung einer Elektronikeinheit 3 mit integrierter Schalteinrichtung 2 und Schutzeinrichtung 12. Die Schalteinrichtung 2 dient zur Schaltung des Elektromotors 1. Die Schutzeinrichtung 12 detektiert Schwergängigkeit und/oder Blockierung des Elektromotors 1. Die Schalteinrichtung 2 und die Schutzschaltung 12 sind somit in einer Elektronikeinheit 3 angeordnet. Der Elektromotor 1 ist über das Anschlusselement 9 mit der Elektronikeinheit 3 verbunden. Die Steuerung der Schalteinrichtung 2 erfolgt über das Steuerungssignal 5. Über den Anschluss 6 wird die Schalteinrichtung 2 mit der notwendigen Spannung versorgt. Weiterhin ist der Masseanschluss 7 dargestellt.2 shows a schematic representation of an electronic unit 3 with integrated switching device 2 and protective device 12. The switching device 2 is used for switching the electric motor 1. The protective device 12 detects binding and / or blocking of the electric motor 1. The switching device 2 and the protective circuit 12 are thus arranged in an electronics unit 3. The electric motor 1 is connected via the connecting element 9 with the electronic unit 3. The control of the switching device 2 via the control signal 5. Via the terminal 6, the switching device 2 is supplied with the necessary voltage. Furthermore, the ground terminal 7 is shown.
Fig. 3 zeigt einen erfindungsgemäßen Elektromotor 1 mit der Elektronikeinheit 3. Die Elektronikeinheit ist im Gehäuse 8 angeordnet. Die nicht separat dargestellten Schalt- und Schutzeinrichtungen 2, 12 sind somit in einer Elektronikeinheit 3 und einem Gehäuse 8 angeordnet. Das Gehäuse 8 ist gegen Umwelteinflüsse, wie beispielsweise Schmutz oder Wasser, abgedichtet und weist ein nicht dargestelltes Druckausgleichselement auf. Weiterhin sind die elektronischen Bauelemente Power- Stecker 10 und Signal-Stecker 11 gezeigt. Der Elektromotor 1 und die Elektronikeinheit 3 sind fest mittels eines Anschlusselementes 9, insbesondere eines Kabelelementes, miteinander verbunden. BezugszeichenlisteFIG. 3 shows an electric motor 1 according to the invention with the electronic unit 3. The electronic unit is arranged in the housing 8. The switching and protective devices 2, 12, not shown separately, are thus arranged in an electronic unit 3 and a housing 8. The housing 8 is sealed against environmental influences, such as dirt or water, and has a pressure compensation element, not shown. Furthermore, the electronic components power connector 10 and signal connector 11 are shown. The electric motor 1 and the electronic unit 3 are fixedly connected to each other by means of a connecting element 9, in particular a cable element. LIST OF REFERENCE NUMBERS
1 Elektromotor1 electric motor
2 Schalteinrichtung2 switching device
3 Elektronikeinheit3 electronics unit
4 Stecker4 plugs
5 Steuerungssignal5 control signal
6 Anschluss Betriebsspannung6 Connection operating voltage
7 Anschluss Masse7 connection earth
8 Gehäuse8 housing
9 Anschlusselement9 connection element
10 Power-Stecker10 power plugs
11 Signal-Stecker11 signal connector
12 Schutzeinrichtung 12 protective device

Claims

Patentansprüche claims
1. Elektromotor (1) mit einer Elektronikeinheit (3) und einem Gehäuse (8), dadurch gekennzeichnet, dass die Elektronikeinheit (3) zumindest eine Schalteinrichtung (2) und zumindest eine Schutzeinrichtung (12) aufweist.1. Electric motor (1) with an electronic unit (3) and a housing (8), characterized in that the electronic unit (3) has at least one switching device (2) and at least one protective device (12).
2. Elektromotor (1) nach Anspruch 1 , dadurch gekennzeichnet, dass die Schalteinrichtung (2) und die Schutzeinrichtung (12) auf einer Leiterplatte angeordnet sind.2. Electric motor (1) according to claim 1, characterized in that the switching device (2) and the protective device (12) are arranged on a printed circuit board.
3. Elektromotor (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Leiterplatte Verbindungselemente aufweist.3. Electric motor (1) according to claim 2, characterized in that the printed circuit board has connecting elements.
4. Elektromotor (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schalteinrichtung (2) und die Schutzeinrichtung (12) mittels eines Verbindungselementes miteinander verbunden sind.4. Electric motor (1) according to one of the preceding claims, characterized in that the switching device (2) and the protective device (12) are interconnected by means of a connecting element.
5. Elektromotor (1) nach Anspruch 1 , dadurch gekennzeichnet, dass das Gehäuse (8) zumindest ein Druckausgleichselement aufweist.5. Electric motor (1) according to claim 1, characterized in that the housing (8) has at least one pressure compensation element.
6. Elektromotor (1) nach Anspruch 1 oder 5, dadurch gekennzeichnet, dass das Gehäuse (8) zumindest ein Abdichtungselement aufweist. 6. Electric motor (1) according to claim 1 or 5, characterized in that the housing (8) has at least one sealing element.
7. Elektromotor (1 ) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (1) und die Elektronikeinheit (3) fest miteinander verbunden sind.7. Electric motor (1) according to one of the preceding claims, characterized in that the electric motor (1) and the electronics unit (3) are firmly connected to each other.
8. Elektromotor (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Elektromotor (1) als Gleichstrommotor ausgebildet ist.8. Electric motor (1) according to one of the preceding claims, characterized in that the electric motor (1) is designed as a DC motor.
9. Elektromotor (1) nach Anspruch 8, dadurch gekennzeichnet, dass der Elektromotor (1) als Kühlerlüftermotor für den Einbau in einem Kraftfahrzeug ausgebildet ist. 9. Electric motor (1) according to claim 8, characterized in that the electric motor (1) is designed as a cooling fan motor for installation in a motor vehicle.
PCT/DE2005/001919 2004-10-29 2005-10-26 Switch and protective device for an electric motor WO2006045291A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112005002159T DE112005002159A5 (en) 2004-10-29 2005-10-26 Switching and protective device for an electric motor
EP05813052A EP1805875A1 (en) 2004-10-29 2005-10-26 Switch and protective device for an electric motor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004052967 2004-10-29
DE102004052967.1 2004-10-29

Publications (1)

Publication Number Publication Date
WO2006045291A1 true WO2006045291A1 (en) 2006-05-04

Family

ID=35636683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2005/001919 WO2006045291A1 (en) 2004-10-29 2005-10-26 Switch and protective device for an electric motor

Country Status (3)

Country Link
EP (1) EP1805875A1 (en)
DE (1) DE112005002159A5 (en)
WO (1) WO2006045291A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522183A1 (en) * 1991-06-28 1993-01-13 Siemens Aktiengesellschaft Pressure compensating element sealingly mounted on the board of a carter wall
DE4209167A1 (en) * 1992-03-20 1993-09-23 Siemens Ag Switching and monitoring circuit for ind. electrical drive - uses semiconductor power switches to provide all switching and monitoring functions allowing electrical programming of drive regulation.
US6448676B1 (en) * 1999-05-18 2002-09-10 Siemens Automotive Inc. Pulse width modulated engine cooling fan motor with integrated MOSFET
DE10336376A1 (en) * 2003-08-06 2005-03-10 Bosch Gmbh Robert Module carrier for controlling air blower module in motor vehicle engine cooling system, integrals multiple components and connections to wire harness in one carrier
DE202004010513U1 (en) * 2004-07-06 2005-11-24 Ebm-Papst Mulfingen Gmbh & Co. Kg Electric motor with high degree of protection against the ingress of foreign bodies and moisture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3638269B2 (en) * 2002-03-14 2005-04-13 三菱電機株式会社 Electric power steering device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0522183A1 (en) * 1991-06-28 1993-01-13 Siemens Aktiengesellschaft Pressure compensating element sealingly mounted on the board of a carter wall
DE4209167A1 (en) * 1992-03-20 1993-09-23 Siemens Ag Switching and monitoring circuit for ind. electrical drive - uses semiconductor power switches to provide all switching and monitoring functions allowing electrical programming of drive regulation.
US6448676B1 (en) * 1999-05-18 2002-09-10 Siemens Automotive Inc. Pulse width modulated engine cooling fan motor with integrated MOSFET
DE10336376A1 (en) * 2003-08-06 2005-03-10 Bosch Gmbh Robert Module carrier for controlling air blower module in motor vehicle engine cooling system, integrals multiple components and connections to wire harness in one carrier
DE202004010513U1 (en) * 2004-07-06 2005-11-24 Ebm-Papst Mulfingen Gmbh & Co. Kg Electric motor with high degree of protection against the ingress of foreign bodies and moisture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1805875A1 *

Also Published As

Publication number Publication date
DE112005002159A5 (en) 2007-07-12
EP1805875A1 (en) 2007-07-11

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