EP3783189A1 - Installation d'ombrage - Google Patents

Installation d'ombrage Download PDF

Info

Publication number
EP3783189A1
EP3783189A1 EP20185847.9A EP20185847A EP3783189A1 EP 3783189 A1 EP3783189 A1 EP 3783189A1 EP 20185847 A EP20185847 A EP 20185847A EP 3783189 A1 EP3783189 A1 EP 3783189A1
Authority
EP
European Patent Office
Prior art keywords
motor
width modulation
pulse
curtain
control
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.)
Pending
Application number
EP20185847.9A
Other languages
German (de)
English (en)
Inventor
Hartmut Kaak
Daniel SCHÄFER
Matthias Henschel
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.)
Elero GmbH
Original Assignee
Elero 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 Elero GmbH filed Critical Elero GmbH
Publication of EP3783189A1 publication Critical patent/EP3783189A1/fr
Pending legal-status Critical Current

Links

Images

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
    • 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
    • E06B2009/6809—Control

Definitions

  • the invention relates to a shading system according to the preamble of claim 1.
  • Such a shading system generally comprises a curtain which can be set in an upward or downward movement by means of an electric drive so that the curtain can be moved between an upper and a lower end position.
  • the term shading system generally includes sun protection and privacy protection systems.
  • the shading system can be formed by a roller shutter, a blind, a ZIP curtain or the like.
  • Induction motors of this type rotate at a fixed speed which is permanently coupled to the mains frequency of the voltage supply, that is to say a speed adjustment is not possible with such electrical drives.
  • phase angle control worsens the efficiency of the electrical drive, which also results in faster heating of the electrical drive.
  • phase angle controls controlled electric drives generate clearly audible humming noises, which are typically in the range of around 100 Hz. This is perceived as extremely annoying by the user.
  • the invention is based on the object of providing a shading system of the type mentioned at the outset, which has a high functionality with a structurally simple structure.
  • the invention relates to a shading system with a curtain which can be set in an upward or downward movement by means of an electric drive.
  • the electric drive is designed as an alternating current motor.
  • a control unit which controls the alternating current motor with pulse width modulation is provided.
  • a braking unit is assigned to the AC motor.
  • a significant advantage of the invention is that the pulse-width modulation realizes high-frequency control of the AC motor. This enables high control frequencies to be achieved, which are directly dependent on the switching frequency of the pulse-width modulation. This makes it possible to achieve high resolutions in the control processes, which lead to the AC motor running very smoothly.
  • Another essential advantage of the invention is that the pulse-width modulation of the AC motor results in a significant noise reduction compared to known drive systems for shading systems. This is based on the fact that the control with the pulse-width modulation takes place at high frequencies, the frequency of the pulse-width modulation advantageously being above the frequency range audible to humans.
  • the frequencies of the pulse-width modulation are preferably in the kHz range, in particular in the range of 15-20 kHz.
  • a speed control of the AC motor can preferably be implemented by means of the pulse-width modulation, which results in further advantages for the shading system according to the invention.
  • a user-related advantage arises in particular when multiple arrangements of shading systems are used in an application, for example on a building.
  • the inventive speed control of the AC motor by means of pulse-width modulation enables exact synchronous operation of the curtains of the individual shading systems, which leads to a good overall visual impression when several curtains are arranged side by side, for example on a rail wall.
  • Another advantage of the speed control is that the operation of the shading system is largely independent of the input voltage.
  • the normative requirement that the operation of the AC motor is independent of fluctuations in the mains voltage in the range of ⁇ 10% of the nominal value can be met.
  • the pulse width modulation already makes it possible to avoid the development of heat in the AC motor.
  • a braking unit is assigned to the AC motor.
  • the AC motor pushes the curtain against the braking force of the brake, especially when the curtain is being moved downwards.
  • the braking unit is designed in such a way that energy is supplied to the AC motor in this downward operation of the curtain. This in turn means that the alternating current motor does not generate any heat, that is to say no separate resistors need to be provided in order to destroy the energy generated in the alternating current motor.
  • Energy-optimized operation of the shading system is guaranteed in particular if the braking unit is only activated during the downward movement of the blind, but is deactivated or only activated to a limited extent during the upward movement of the blind.
  • the braking unit is particularly advantageous continuously, that is, activated during the upward and downward movement of the curtain. This enables a particularly simple design of the overall system. In particular, no separate control means need to be provided for time-dependent control of the brake unit.
  • the AC motor is designed as a single-phase asynchronous motor with an auxiliary capacitor.
  • the braking unit also advantageously consists of a hysteresis brake, in particular a magnetic hysteresis brake.
  • the present application can also be used for a horizontal shading system in which the curtain can be moved at least approximately in the horizontal direction between a closed and an open position.
  • a horizontal shading system in which the curtain can be moved at least approximately in the horizontal direction between a closed and an open position.
  • An example of this is an awning.
  • Figure 1 shows a highly schematic embodiment of the shading system 1 according to the invention.
  • the shading system 1 in the sense of the invention includes sun protection and privacy systems of all kinds.
  • the shading system 1 can be designed in the form of a roller shutter, a blind or a ZIP curtain.
  • the shading system 1 comprises a curtain 2, which can be set in an upward or downward movement by means of a drive unit 3 and so on can be moved between an upper and lower end position.
  • Figure 1 shows the curtain 2 in the lower end position.
  • a shaft 4 is set in a rotary movement. Depending on the direction of rotation of the shaft 4, the curtain 2 is wound or unwound on the shaft 4.
  • the drive unit 3 comprises an electric drive in the form of an AC motor 5, a brake unit 6 and a control unit 7.
  • the alternating current motor 5 is formed by a single-phase asynchronous motor with an auxiliary capacitor.
  • a second phase is generated in a known manner, so that two phases are available for generating a rotating field.
  • the braking unit 6 advantageously consists of a hysteresis brake, in the present case a magnetic hysteresis brake.
  • the control unit 7 consists of a processor or the like. In the present case, the control unit 7 is integrated in the drive unit 3. Alternatively, the control unit 7 can also be arranged outside the drive unit 3 and be connected to the drive unit 3 by a cable connection or the like.
  • FIG. 2 shows the activation of the activation of the AC motor 5 of the drive unit 3.
  • the AC motor 5 is integrated into an AC circuit 8.
  • the AC motor 5 is controlled in a known manner with a push-pull control 9, which is part of the control unit 7.
  • the push-pull control 9 controls a switching element 10 in a freewheeling circuit 11, as a result of which a controlled switching on and off of the AC motor 5 and thus a commutation of the AC motor 5 is made possible.
  • the alternating current motor 5 is controlled with a pulse-width modulation.
  • the control unit 7 has a generator 12 which generates a control signal for the pulse-width modulation via a line 13, which control signal is output to an output stage 14 for the pulse-width modulation.
  • the push-pull control 9 outputs a synchronization signal to the output stage 14 via the line 15.
  • the output stage 14 consists of a switch or the like.
  • FIG. 3 The principle of pulse width modulation is shown Figure 3 .
  • a period of the voltage for the AC motor 5 is shown.
  • this period is divided into a large number of control sections, one of these control sections being denoted in FIG. 3 with the reference number a.
  • the voltage supplied to the AC motor 5 can be specified very quickly and precisely.
  • a fast and precise regulation of the alternating current motor 5 can thus be carried out, wherein in particular slow travel of the alternating current motor 5 over longer periods of time can also be specified.
  • Such a pulse-width modulation allows a considerably faster and more precise control of the alternating current motor 5 than would be possible with a known phase control.
  • phase control is shown in the timing diagrams in FIG Figures 4a-c shown. There are only two control sections per phase of the voltage of the AC motor 5 (in the Figures 4b, 4c marked with b).
  • the AC motor 5 can thus be controlled in the kHz range and thus with a frequency that is above the frequency range that is audible to humans. In this way, when the AC motor 5 is activated, there are no disruptive humming noises audible to humans.
  • the heat generated by the alternating current motor 5 is also reduced in particular by the braking unit 6 assigned to the alternating current motor 5, which in the present case is designed in the form of a magnetic hysteresis brake.
  • the braking unit 6 is designed in such a way that it is permanently activated, that is to say both during the upward and also during the downward movements of the curtain 2.
  • the activated braking unit 6 continuously supplies energy to the alternating current motor 5, which means that no potential positional energy of the curtain 2 has to be destroyed during the downward movement. In particular, additional resistors and the like are thus omitted in order to destroy this positional energy.
  • the shading system 1 can also be designed so that the braking unit 6 is only fully activated during the downward movements of the curtain 2, but deactivated or only activated to a limited extent during the upward movements.
  • a speed control which is carried out via the control unit 7, is advantageously provided for the AC motor 5. An operation of the AC motor 5 independent of the mains voltage is thus achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
EP20185847.9A 2019-08-13 2020-07-15 Installation d'ombrage Pending EP3783189A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202019104448.9U DE202019104448U1 (de) 2019-08-13 2019-08-13 Beschattungsanlage

Publications (1)

Publication Number Publication Date
EP3783189A1 true EP3783189A1 (fr) 2021-02-24

Family

ID=71620224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20185847.9A Pending EP3783189A1 (fr) 2019-08-13 2020-07-15 Installation d'ombrage

Country Status (2)

Country Link
EP (1) EP3783189A1 (fr)
DE (1) DE202019104448U1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1503472A2 (fr) * 2003-07-26 2005-02-02 elero GmbH Appareil de commande pour un système d'actionnement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1503472A2 (fr) * 2003-07-26 2005-02-02 elero GmbH Appareil de commande pour un système d'actionnement

Also Published As

Publication number Publication date
DE202019104448U1 (de) 2020-11-19

Similar Documents

Publication Publication Date Title
DE19843106B4 (de) System zur Drehzahlsteuerung von Wechselstrom-Motoren
EP0242387B1 (fr) Moteur c.c. sans collecteur, son circuit d'attaque ainsi que son procede de fonctionnement
EP1499008B1 (fr) Méthode et système de commande pour la commutation électronique d'un moteur DC sans balais
DE19843106A9 (de) System zur Drehzahlsteuerung von Wechselstrom-Motoren
CH648967A5 (de) Verfahren und vorrichtung zum wiederanlaufen eines eine verminderte drehzahl aufweisenden induktionsmotors.
EP1017159A2 (fr) Méthode de régulation d'un moteur électrique monophasé ou polyphasé commandé par un convertisseur tension/fréquence
DE69839038T2 (de) Geräuschverminderung bei Reluktanzmachinen
DE102004045568B4 (de) Steuer- und/oder Regelvorrichtung für eine elektromotorisch betätigbare Verstelleinrichtung zum Verstellen, vorzugsweise zum translatorischen Verschieben, wenigstens eines Möbelteils
WO2006084566A1 (fr) Moteur a aimant permanent a deux phases
DE102013218041A1 (de) Verfahren zum Betreiben eines Elektromotors
EP0859452B1 (fr) Procédé et dispositif de contrÔle de puissance des consommateurs électriques connectés à un réseau d'alimentatin à tension alternative
DE102013005355A1 (de) Verfahren zum Betrieb eines bürstenlosen Motors und Motor
DE102016214103A1 (de) Antriebsumrichter für geschaltete Reluktanzmaschine
EP3783189A1 (fr) Installation d'ombrage
EP3285381A1 (fr) Procédé de fonctionnement d'une machine électrique et machine électrique
DE202019104452U1 (de) Beschattungsanlage
DE19535676C2 (de) Verfahren zur Leistungssteuerung eines Induktionsmotors
DE4019338A1 (de) Treiberschaltung fuer einen buerstenlosen gleichstrommotor
DE4413802C2 (de) Verfahren und Vorrichtung zum Steuern der Drehzahl eines elektrischen Dreiphasen-Asynchronmotors
EP3330466B1 (fr) Système de porte tournante et procédé de fonctionnement d'un système de porte tournante
DE3741133C1 (de) Antriebsvorrichtung
EP0190240B1 (fr) Moteur a courant continu depourvu de collecteur
DE3506651A1 (de) Wechselstrommotor
DE19705907C2 (de) Verfahren und Vorrichtung zur Leistungssteuerung von an ein Wechselspannungs-Versorgungsnetz angeschlossenen elektrischen Verbrauchern
DE10355011A1 (de) Elektronisch kommutierter Elektromotor

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210310

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DIE WEITEREN ERFINDER HABEN AUF IHR RECHT VERZICHTET, ALS SOLCHE BEKANNT GEMACHT ZU WERDEN.

Inventor name: HENSCHEL, MATTHIAS

Inventor name: KAAK, HARTMUT

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HENSCHEL, MATTHIAS

Inventor name: SCHAEFER, DANIEL

Inventor name: KAAK, HARTMUT

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240319