EP4375459B1 - Feststellanlage - Google Patents

Feststellanlage Download PDF

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Publication number
EP4375459B1
EP4375459B1 EP23212672.2A EP23212672A EP4375459B1 EP 4375459 B1 EP4375459 B1 EP 4375459B1 EP 23212672 A EP23212672 A EP 23212672A EP 4375459 B1 EP4375459 B1 EP 4375459B1
Authority
EP
European Patent Office
Prior art keywords
coil
supply voltage
control device
electronic control
hold
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.)
Active
Application number
EP23212672.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4375459A1 (de
Inventor
Matthias Hucker
Dominik Böhm
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.)
Geze GmbH
Original Assignee
Geze 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 Geze GmbH filed Critical Geze GmbH
Publication of EP4375459A1 publication Critical patent/EP4375459A1/de
Application granted granted Critical
Publication of EP4375459B1 publication Critical patent/EP4375459B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/002—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means
    • E05F1/006—Closers or openers for wings, not otherwise provided for in this subclass controlled by automatically acting means by emergency conditions, e.g. fire
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/22—Additional arrangements for closers, e.g. for holding the wing in opened or other position
    • E05F3/221—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones
    • E05F3/222—Mechanical power-locks, e.g. for holding the wing open or for free-moving zones electrically operated
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048—Circuits, feeding, monitoring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0072—Operation
    • E05B2047/0076—Current to lock only, i.e. "fail-safe"
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors

Definitions

  • the invention relates to a locking system for locking an open leaf of a door, a window or the like, with an energizable coil which, when energized, is intended to block automatic closing of the leaf by a drive connected to the leaf, and a supply voltage input for the coil.
  • Hold-open systems are designed to hold a sash in an open position and, if necessary, release it from this position.
  • a well-known hold-open system is, for example, in the US3777423A described.
  • Conventional hold-open systems are usually designed for a defined supply voltage applied to the supply voltage input, for example 24V DC, for which the current flowing through the coil corresponds to a defined, specified value within the nominal operating range of the coil. If, on the other hand, the hold-open system is operated with a supply voltage that is too high, for example 48V DC, the coil can be overloaded due to the higher current and high torques outside the permissible standard range can then be required to manually close the leaf.
  • the overload can also lead to the coil burning out and thus to irreversible damage to the hold-open system.
  • the hold-open system may not provide the disengagement torque required to hold the leaf.
  • the invention is therefore based on the object of creating a locking system which reliably performs its function even over a wide range of the supply voltage applied to the supply voltage input.
  • a locking system having the features of claim 1, and in particular by an electronic control device which is designed to measure a supply voltage applied to the supply voltage input when switched on and to regulate the current flowing through the coil to a predetermined value, wherein the current flowing through the coil is measured for current regulation, and wherein the starting value of the current regulation is determined as a function of the measured supply voltage.
  • a standard-compliant holding function of the hold-open system requires that the current flowing through the coil creates a holding torque of the hold-open system that exceeds the closing torque of the drive by 40 Nm to 120 Nm. This allows the sash to be reliably held in its open position, while the operator can manually or by applying their own force overcome the resulting holding force of the hold-open system and close the sash. Since the holding torque of the hold-open system follows the current flowing through the coil extremely sensitively, it is particularly crucial for a standard-compliant holding function that the current flowing through the coil is constant during operation of the hold-open system and that its current intensity corresponds to the specified value, which can vary depending on the required holding torque.
  • the locking system fulfils several functions: Since the hold-open system regulates the current flowing through the coil to the specified value for any supply voltage value when switched on using the electronic control device, the hold-open system can also be used with a wide range of different supply voltages, in particular in a 12V DC network or 48V DC network, can be operated reliably.
  • current control compensates for parameter changes, in particular changes in the ohmic coil resistance due to heating caused by the current flowing through the coil.
  • the last two control interventions represent scenarios that allow the current flowing through the coil to be at a constant, predetermined value, particularly after commissioning, and especially during operation of the hold-open system.
  • a voltage divider can be provided that directly taps the supply voltage applied to the supply voltage input.
  • the electronic control device can then be designed to measure the supply voltage applied to the supply voltage input by means of the voltage divider upon switch-on. This allows the supply voltage applied to the supply voltage input to be measured both in a de-energized and in a energized state of the coil. Measuring in a de-energized state offers the particular advantage that, when the locking system is switched on, the risk of overloading the coil due to excessive current, which could flow through the coil during measurement in the energized state is reduced.
  • the electronic control device can be configured to energize the coil upon power-up and measure the supply voltage present at the supply voltage input based on the current flowing through the coil during power-up and before the start of current regulation. This allows for a simple and cost-effective design of the locking system, since no additional voltage divider is required to measure the supply voltage present at the supply voltage input.
  • a measuring resistor connected in series with the coil is provided, and the electronic control device is configured to measure the current flowing through the coil using the measuring resistor. This allows for a simple current control structure.
  • a parameter input is provided, and the electronic control device is configured to set the predefined value via the parameter input.
  • the predefined value allows the predefined value to be changed quickly and easily. This may be particularly necessary when drives with different closing torques are each to be equipped with a holding device according to the invention. By setting the predefined value, the corresponding required holding torque of the holding device can be set.
  • the locking system comprises an electronic switching element, in particular a field-effect transistor, wherein the electronic control device is designed to control the electronic switching element with a pulse-width modulated signal having a duty cycle and to adjust the duty cycle of the pulse-width modulated signal to control the current flowing through the coil. To regulate the current to the specified value.
  • the combination of the electronic switching element and its control via the pulse-width modulated signal allows for simple, yet fast, precise, and low-loss control of the current flowing through the coil.
  • the starting value of the current control corresponds to a starting duty cycle of the pulse-width modulated signal, which is stored in a lookup table for the measured supply voltage in a memory, in particular in the electronic control device.
  • the starting duty cycle can be calculated by the electronic control device from the measured supply voltage.
  • the electronic control device is configured to compare the current flowing through the coil with the predetermined value in order to adjust the duty cycle of the pulse-width-modulated signal and to adjust the duty cycle of the pulse-width-modulated signal as a function of the comparison in order to regulate the current flowing through the coil to the predetermined value.
  • the electronic control device is configured to reduce the duty cycle of the pulse-width-modulated signal if the current flowing through the coil is greater than the predetermined value and to increase the duty cycle of the pulse-width-modulated signal if the current flowing through the coil is less than the predetermined value.
  • a preset duty cycle is stored in the electronic control device, and the electronic control device is designed to control the electronic switching element with the pulse-width modulated signal with the preset duty cycle upon switching on and before the start of the current regulation.
  • the preset duty cycle is at most 50%. This can prevent the Switching on and current flowing through the coil before the current control starts overloads the coil.
  • the electronic control device for controlling the current flowing through the coil preferably comprises a PID controller. This advantageously minimizes the control deviation.
  • the coil can be designed as part of an electromagnet which is intended to block a sliding block of the drive, which is guided in a slide rail, in the energized state of the coil in order to block automatic closing of the wing.
  • the coil can, for example, also be designed as part of an electro-hydraulic valve, which is intended to assume a closed valve position when the coil is energized in order to interrupt a hydraulic circuit in the drive in order to block automatic closing of the wing.
  • the locking system can be designed for a supply voltage in a voltage range of 10V DC to 70V DC, in particular 20V DC to 56V DC, and the electronic control device can be configured to regulate the current flowing through the coil to the specified value for each supply voltage within the voltage range. This covers all common supply voltages in building technology.
  • the specified value can be within a current range of 20 mA DC to 100 mA DC, in particular 30 mA DC to 80 mA DC. These values have proven particularly suitable for operating the locking system according to the invention.
  • the present invention relates to a door, a window or the like, with a wing, a drive for automatically closing the wing and a locking system according to the invention.
  • the invention also relates to a method for locking an open leaf of a door, window, or the like by means of a locking system, wherein the locking system comprises: an energizable coil which, when energized, is intended to block automatic closing of the leaf by a drive connected to the leaf, a supply voltage input for the coil, and an electronic control device.
  • the method is characterized in that the electronic control device performs the following steps: measuring the supply voltage applied to the supply voltage input upon switching on, regulating the current flowing through the coil to the predetermined value, wherein the current flowing through the coil is measured for current regulation, and wherein the starting value of the current regulation is determined as a function of the measured supply voltage.
  • FIG. 1 A schematic circuit implementation of a locking system 11 for locking an open leaf of a door, window, or the like is shown, comprising an energizable coil 13, a supply voltage input 15 for the coil 13, and an electronic control device 17. Furthermore, the locking system 11 comprises a measuring resistor 21, which is connected in series with the coil 13, and a parameter input 23. Furthermore, the locking system 11 contains an electronic switching element 25, which can be controlled by the electronic control device 17 using a pulse-width modulated signal in order to regulate the current flowing through the coil 13 to a predetermined value. Furthermore, a circuit board 27 is shown, on which the electronic control device 17, the electronic switching element 25, and the measuring resistor 21 are arranged.
  • the electronic control device 17 has a power input 29, which is connected to the supply voltage input 15.
  • the generally higher supply voltage applied to the supply voltage input 15 is converted to the nominal operating voltage of the electronic control device 17 by means of a voltage converter to supply power to the latter.
  • a voltage converter to supply power to the latter.
  • known switching regulators or linear regulators can be used for this purpose, which can provide a defined output voltage of, for example, 3.3V DC or 5V DC as the nominal operating voltage for different input voltages.
  • the electronic control device 17 can also be supplied from a different supply network than the supply voltage applied to the supply voltage input 15.
  • the electronic control device 17 controls the electronic switching element 25 via a signal output 31 with a pulse-width modulated signal with a preset duty cycle, so that a current flow through the coil 13.
  • the current flowing through coil 13 generates a voltage drop across measuring resistor 21, which is detected by electronic control device 17 via a measuring input 19.
  • the preset duty cycle were 100%, the voltage drop across measuring resistor 21 in the stationary state of coil 13 would at least approximately correspond to the supply voltage applied to supply voltage input 15.
  • coil 13 can be overloaded with a preset duty cycle of 100% due to the higher current associated with the higher voltage.
  • a preset duty cycle of only 50% or less, for example 25% is used, so that the current flowing through coil 13 corresponds at most to the current flowing through coil 13 at the nominal voltage of 24V DC.
  • a duty cycle of 20% in the stationary state of coil 13, the voltage drop across measuring resistor 21 is at least approximately a quarter of the supply voltage.
  • electronic control device 17 determines the supply voltage present at supply voltage input 15 based on the detected voltage drop across measuring resistor 21 and the other circuit parameters known to electronic control device 17.
  • the supply voltage applied to the supply voltage input 15 can also be measured by the electronic control device 17 by means of a voltage divider which directly taps the supply voltage applied to the supply voltage input 15 (not shown).
  • the current flowing through the coil 13 is then regulated to the specified value, which can be preset during production and is determined by By applying a corresponding signal to the parameter input 23, to which a further input 33 of the electronic control device 17 is connected, the electronic control device 17 can set it to a different value.
  • the electronic control device 17 In order to start the regulation of the current flowing through the coil 13 following the measurement of the supply voltage, the electronic control device 17 must first determine a starting value for the current regulation, which corresponds to a starting duty cycle of the pulse-width modulated signal.
  • the electronic control device 17 takes the starting duty cycle of the pulse-width-modulated signal from a lookup table stored in a memory, in particular the electronic control device 17, which is stored in the lookup table for the supply voltage applied to the supply voltage input 15 and determined by the previous measurement. Alternatively or additionally, the electronic control device 17 can also calculate the starting duty cycle of the current control from the measured supply voltage. If the lock-opening system 11 is designed for a nominal voltage of 24V DC, for example, the starting duty cycle can be 45%, for example.
  • the electronic control device 17 determines a starting value for the current control that corresponds to a starting duty cycle of the pulse-width-modulated signal of, for example, 90% or 22.5%. After determining the starting duty cycle, the electronic control device 17 controls the electronic switching element 25 with the pulse-width modulated signal corresponding to the starting duty cycle to start the current regulation.
  • the electronic control device 17 measures regularly by means of the measuring resistor 21 via the measuring input 19 the current flowing through coil 13 to regulate the current to the specified value.
  • the electronic control device 17 comprises a PID controller, to which it supplies a control deviation from the measured current value and the predefined value, wherein the control loop is closed by feedback of the measured current value. Based on the manipulated variable output by the PID controller, the electronic control device 17 adjusts the duty cycle of the pulse-width-modulated signal accordingly. The electronic control device 17 then measures the current flowing through the coil 13 again and feeds the control deviation formed from the predefined value and the fed-back, currently measured current value back to the PID controller. As a result of a cycle of the above steps, the electronic control device 17 regulates the current to the predefined value.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Electrical Variables (AREA)
EP23212672.2A 2022-11-28 2023-11-28 Feststellanlage Active EP4375459B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022212732.3A DE102022212732A1 (de) 2022-11-28 2022-11-28 Feststellanlage

Publications (2)

Publication Number Publication Date
EP4375459A1 EP4375459A1 (de) 2024-05-29
EP4375459B1 true EP4375459B1 (de) 2025-06-18

Family

ID=88978554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23212672.2A Active EP4375459B1 (de) 2022-11-28 2023-11-28 Feststellanlage

Country Status (3)

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EP (1) EP4375459B1 (pl)
DE (1) DE102022212732A1 (pl)
PL (1) PL4375459T3 (pl)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792144A (fr) * 1972-01-07 1973-03-16 Rixson Firemark Ferme-porte repondant a certaines conditions
US3771823A (en) * 1972-02-24 1973-11-13 Schlage Lock Co Electrically controlled hold-open device
DE10155969A1 (de) * 2001-11-14 2003-05-22 Bosch Gmbh Robert Vorrichtung zur Ansteuerung eines elektromagnetischen Stellgliedes
DE102008056214B4 (de) * 2008-11-06 2014-09-25 Assa Abloy Sicherheitstechnik Gmbh Arretiereinheit für einen Türschließer, Türschließsystem, Verwendung einer Arretiereinheit und Verfahren zum Arretieren einer Tür
DE102015102924A1 (de) * 2015-03-02 2016-09-08 Dorma Deutschland Gmbh Feststellanordnung für eine Tür
CN110359792B (zh) * 2019-01-15 2020-12-11 大连理工大学 一种智能车门限位及开合系统

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Publication number Publication date
PL4375459T3 (pl) 2025-10-20
EP4375459A1 (de) 2024-05-29
DE102022212732A1 (de) 2024-05-29

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