EP1752606B1 - Drive unit for objects to be wound on to and off a tube - Google Patents

Drive unit for objects to be wound on to and off a tube Download PDF

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Publication number
EP1752606B1
EP1752606B1 EP05291705A EP05291705A EP1752606B1 EP 1752606 B1 EP1752606 B1 EP 1752606B1 EP 05291705 A EP05291705 A EP 05291705A EP 05291705 A EP05291705 A EP 05291705A EP 1752606 B1 EP1752606 B1 EP 1752606B1
Authority
EP
European Patent Office
Prior art keywords
tube
motor
sensor
drive unit
shaft
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 - Lifetime
Application number
EP05291705A
Other languages
German (de)
French (fr)
Other versions
EP1752606A1 (en
Inventor
Klaus Pfendler
Andrej Schneider
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Lucent SAS
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 Alcatel Lucent SAS filed Critical Alcatel Lucent SAS
Priority to DE602005003354T priority Critical patent/DE602005003354T2/en
Priority to AT05291705T priority patent/ATE378493T1/en
Priority to EP05291705A priority patent/EP1752606B1/en
Publication of EP1752606A1 publication Critical patent/EP1752606A1/en
Application granted granted Critical
Publication of EP1752606B1 publication Critical patent/EP1752606B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller

Definitions

  • the invention relates to a drive unit for objects to be wound on to and off a tube according to the preamble of claim 1.
  • Drive units including a combination of a shaft, a brake, a motor, and a gear, the combination being insertable into a tube, normally are called tubular drives.
  • Such drives are for driving objects to be wound on to and off said tube, like sun blinds, roller shutters or cinema screens. It is also known that such drive units are combined with a manual override where the whole drive unit or tubular drive together with the tube is rotated by hand. To this end the currents for the motor and the brake are to be fed via collector rings from a fixed and normally wall-mounted part.
  • Such tubular drive is known e. g. from DE 298 18 023 U1 .
  • the object of the invention therefore is to design the drive unit such that during normal operation also positions between the end positions can be detected and that it is not damaged during a manual override.
  • the basic idea behind is to use an incremental encoder whose (electronic) sensor is attached to the fixed part of the drive unit and where the counterpart of the sensor, which is not an active part, is attached to the moving part.
  • Figure 1 shows a combination of a brake Br, a motor Mo and a gear Ge on a common shaft Sh. It further shows a magnet Mg, two collector rings CR1 and CR2, two Hall sensors HA and HB, and leads +Mo/Br, -Mo/Br, +E1, -El, A, and B.
  • the combination of the brake BR, the motor Mo and the gear Ge is shown as being concentric to the shaft Sh, what is normal for such tubular drives. At the right-hand-side the shaft Sh is foreseen to drive the tube for winding on and off whatever object.
  • motor Mo and brake Br are connected in parallel. They are connected between the leads +Mo/Br and -Mo/Br via the collector rings CR1 and CR2. Short-circuiting this leads activates the brake Bk, applying a DC voltage thereto activates the motor Mo.
  • the two collector rings CR1 and CR2 are shown to lye in a plane, e.g. on a printed circuit board, perpendicular to the shaft Sh and concentric thereto.
  • An other possibility would be to use cylinders concentric to the shaft.
  • the magnet Mg together with the two Hall sensors HA and HB build an incremental encoder.
  • Another possibility of an incremental encoder could be a photo sensor in connection with a raster. In any case we have an active sensor and a passive counterpart thereof.
  • encoders and suitable evaluation circuits They may include one single sensor part or more than one; they may include one single counterpart or more than one.
  • the active sensor here is powered by the leads +El and -El, normally taken from the electronics evaluating the output signals; the output signals are accessible via the leads A and B.
  • the active part of the encoder is unmovable whereas the passive part is rotatable, necessarily the plane carrying the collector rings is traversed.
  • the shaft Sh traverses this plane
  • the leads +E1, -El, A, and B together with some support for the sensor traverse this plane.
  • the choice there between may be made in view of an easy assembly.
  • the plane carrying the collector rings normally is not magnetic, the sensor could even be on one side and the magnet on the other side of this plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

The invention relates to a drive unit for objects to be wound on to and off a tube, like sun blinds, roller shutters or cinema screens, including a combination of a shaft Sh, a brake Br, a motor Mo, and a gear Ge, the combination being insertable into the tube for on the one hand drive the tube and on the other hand being driven by hand together with the tube as a movable part, in case of need, to which end the brake and the motor are connected to a fixed part via collector rings CR1, CR2, where an incremental encoder Mg, HA, HB is used including an active sensor HA, HB and a passive counterpart Mg thereof, and where the sensor HA, HB is attached to the fixed part and the counterpart Mg is attached to the moving part.

Description

  • The invention relates to a drive unit for objects to be wound on to and off a tube according to the preamble of claim 1.
  • Drive units including a combination of a shaft, a brake, a motor, and a gear, the combination being insertable into a tube, normally are called tubular drives. Such drives are for driving objects to be wound on to and off said tube, like sun blinds, roller shutters or cinema screens. It is also known that such drive units are combined with a manual override where the whole drive unit or tubular drive together with the tube is rotated by hand. To this end the currents for the motor and the brake are to be fed via collector rings from a fixed and normally wall-mounted part.
  • Such tubular drive is known e. g. from DE 298 18 023 U1 .
  • Such tubular drives normally are combined with end switches in order to avoid damages. But often it would be desirable not only to detect the end positions but also any position in between.
  • The object of the invention therefore is to design the drive unit such that during normal operation also positions between the end positions can be detected and that it is not damaged during a manual override.
  • This object is solved according to the invention by a drive unit according to the teachings of claim 1.
  • The basic idea behind is to use an incremental encoder whose (electronic) sensor is attached to the fixed part of the drive unit and where the counterpart of the sensor, which is not an active part, is attached to the moving part.
  • The use of incremental encoders in connection with fixed magnetic field sensors and moving magnets as well as the use of concentric collector rings arranged in a plane perpendicular to the shaft is known as such from DE 100 38 285 A1 .
  • Further embodiments of the invention are to be found in the subclaim and the following description.
  • In the following the invention will be described with reference to the accompanying drawings:
    • Figure 1
    shows a first embodiment of a drive unit according to the invention.
    Figure 2
    shows a second embodiment of a drive unit according to the invention.
  • Figure 1 shows a combination of a brake Br, a motor Mo and a gear Ge on a common shaft Sh. It further shows a magnet Mg, two collector rings CR1 and CR2, two Hall sensors HA and HB, and leads +Mo/Br, -Mo/Br, +E1, -El, A, and B.
  • The combination of the brake BR, the motor Mo and the gear Ge is shown as being concentric to the shaft Sh, what is normal for such tubular drives. At the right-hand-side the shaft Sh is foreseen to drive the tube for winding on and off whatever object.
  • In this example motor Mo and brake Br are connected in parallel. They are connected between the leads +Mo/Br and -Mo/Br via the collector rings CR1 and CR2. Short-circuiting this leads activates the brake Bk, applying a DC voltage thereto activates the motor Mo.
  • When using a DC motor, one needs only two collector rings; otherwise at least three collector rings would be necessary.
  • In this example the two collector rings CR1 and CR2 are shown to lye in a plane, e.g. on a printed circuit board, perpendicular to the shaft Sh and concentric thereto. An other possibility would be to use cylinders concentric to the shaft.
  • The magnet Mg together with the two Hall sensors HA and HB build an incremental encoder. Another possibility of an incremental encoder could be a photo sensor in connection with a raster. In any case we have an active sensor and a passive counterpart thereof. There are enough known examples of such encoders and suitable evaluation circuits. They may include one single sensor part or more than one; they may include one single counterpart or more than one.
  • Normally when using such incremental encoders in connection with an electric motor the whole encoder is mounted within the housing of the motor and only the leads thereto are accessible outside. Here it is proposed to attach the sensor to the fixed part of the whole drive unit. The passive counterpart should be attached to the moving part, here the shaft Sh.
  • The active sensor here is powered by the leads +El and -El, normally taken from the electronics evaluating the output signals; the output signals are accessible via the leads A and B.
  • As the active part of the encoder is unmovable whereas the passive part is rotatable, necessarily the plane carrying the collector rings is traversed.
  • In the example of figure 1 the shaft Sh traverses this plane, in the example of figure 2 the leads +E1, -El, A, and B together with some support for the sensor traverse this plane. The choice there between may be made in view of an easy assembly. As the plane carrying the collector rings normally is not magnetic, the sensor could even be on one side and the magnet on the other side of this plane.

Claims (2)

  1. Drive unit for objects to be wound on to and off a tube, like sun blinds, roller shutters or cinema screens, including a combination of a shaft (Sh), a brake (Br), a motor (Mo), and a gear (Ge), the combination being insertable into the tube for on the one hand drive the tube and on the other hand being driven by hand together with the tube as a movable part, in case of need, to which end the brake and the motor are connected to a fixed part via collector rings (CR1, CR2), characterized in, that an incremental encoder (Mg, HA, HB) is used including an active sensor (HA, HB) and a passive counterpart (Mg) thereof, that the sensor (HA, HB) is attached to the fixed part, that the counterpart (Mg) is attached to the moving part, that the sensor includes at least one sensor for magnetic fields (HA, HB) and the passive counterpart thereof includes at least one magnet (Mg), that the collector rings (CR1, CR2) are arranged concentric to the shaft (Sh) and in a plane perpendicular thereto and that the shaft (Sh) with the at least one magnet (Mg) or the at least one magnetic field sensor (HA, HB) is lead through the plane with the collector rings (CR1, CR2).
  2. Drive unit according to claim 1, characterized in, that the motor (Mo) is a DC motor.
EP05291705A 2005-08-09 2005-08-09 Drive unit for objects to be wound on to and off a tube Expired - Lifetime EP1752606B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602005003354T DE602005003354T2 (en) 2005-08-09 2005-08-09 Drive unit for objects that are wound up and unwound on a pipe
AT05291705T ATE378493T1 (en) 2005-08-09 2005-08-09 DRIVE UNIT FOR OBJECTS WINDOWING AND UNWINDING ON A TUBE
EP05291705A EP1752606B1 (en) 2005-08-09 2005-08-09 Drive unit for objects to be wound on to and off a tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05291705A EP1752606B1 (en) 2005-08-09 2005-08-09 Drive unit for objects to be wound on to and off a tube

Publications (2)

Publication Number Publication Date
EP1752606A1 EP1752606A1 (en) 2007-02-14
EP1752606B1 true EP1752606B1 (en) 2007-11-14

Family

ID=35445954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05291705A Expired - Lifetime EP1752606B1 (en) 2005-08-09 2005-08-09 Drive unit for objects to be wound on to and off a tube

Country Status (3)

Country Link
EP (1) EP1752606B1 (en)
AT (1) ATE378493T1 (en)
DE (1) DE602005003354T2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9249623B2 (en) 2010-02-23 2016-02-02 Qmotion Incorporated Low-power architectural covering

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007016283U1 (en) * 2007-11-13 2009-03-26 Arca Beteiligungen Gmbh Drive arrangement for a darkening device
US8575872B2 (en) 2010-02-23 2013-11-05 Homerun Holdings Corporation High efficiency roller shade and method for setting artificial stops
US8659246B2 (en) 2010-02-23 2014-02-25 Homerun Holdings Corporation High efficiency roller shade
US8368328B2 (en) * 2010-02-23 2013-02-05 Homerun Holdings Corporation Method for operating a motorized roller shade
US9194179B2 (en) 2010-02-23 2015-11-24 Qmotion Incorporated Motorized shade with the transmission wire passing through the support shaft
US9018868B2 (en) 2010-02-23 2015-04-28 Qmotion Advanced Shading Systems High efficiency roller shade and method for setting artificial stops
CN109600092B (en) * 2018-12-17 2020-11-27 北京无线电测量研究所 Permanent magnet synchronous motor rotor position monitoring and correcting method and system and motor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3504489A1 (en) * 1985-02-09 1986-08-14 Lothar 7984 Wolpertswende Huber Device for manual operation of the winding shaft, which can be driven by an electric motor, for example of a roller shutter in the case of the electric motor being unpowered
FR2744759B1 (en) * 1996-02-14 1998-04-17 Simu HANDLING DEVICE FOR ROLLING SHUTTER
FR2780090B1 (en) * 1998-06-19 2000-08-11 Deprat Jean Sa DEVICE FOR DRIVING AN ORGAN, ESPECIALLY A ROLLING SHUTTER, AND AN OPENING PROTECTION DEVICE, ESPECIALLY ROLLING SHUTTER, EQUIPPED WITH A DRIVING DEVICE
DE29818023U1 (en) * 1998-10-09 1998-12-24 Ernst Selve GmbH & Co KG, 58513 Lüdenscheid Device for winding and unwinding a curtain
DE10038285A1 (en) * 2000-08-05 2002-02-14 Valeo Auto Electric Gmbh Electrical drive device e.g. for shutters or vehicle screen wipers, has housing cover with openings for accommodating plug and/or holder housings for electrical connection and/or for holding supply and/or detection arrangements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9249623B2 (en) 2010-02-23 2016-02-02 Qmotion Incorporated Low-power architectural covering

Also Published As

Publication number Publication date
ATE378493T1 (en) 2007-11-15
EP1752606A1 (en) 2007-02-14
DE602005003354D1 (en) 2007-12-27
DE602005003354T2 (en) 2008-09-11

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