EP3599327A1

EP3599327A1 - Electric power system applicable to electric door openers

Info

Publication number: EP3599327A1
Application number: EP18000627.2A
Authority: EP
Inventors: Roger Andreu Pallerola
Original assignee: Openers and Closers SL
Current assignee: Openers and Closers SL
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2020-01-29
Anticipated expiration: 2038-07-25
Also published as: ES2880328T3; EP3599327B1; PT3599327T; PL3599327T3

Abstract

The invention relates to an electronic system applicable to electric door openers, comprising: connectors for the main power (a); a rectifying block (1), an energy storage system (2), a voltage regulator (3) that provides power to a microprocessor (5), a conditioning stage (4), a power stage (6) for powering a solenoid (7), a solenoid (7) responsible for locking and unlocking the electric door opener and a microprocessor (5). According to the invention, it comprises: an activity indicator of the system (8) connected to the microprocessor (5) and which indicates the activity of the system monitored by the microprocessor (5) and a Hall effect sensor (9) that, when it detects a magnetic field produced by the solenoid (7), activates a first voltage output (d) or sends a detection signal of said magnetic field to the microprocessor (5), causing the activation of a second voltage output (e).

Description

Technical field

This invention can be applied to the sector of electric door openers that are installed in a fixed leaf or in the frame of a door and that have a swivel latch for locking or unlocking the bolt of a lock placed in a rotating leaf of the door for the purpose of locking it in a closed position and unlocking it when the electronic system of the electric door openers is powered.

Background art

Electric door openers that incorporate an electric actuation device connected to an external connection terminal strip on the inside are currently known; said electric device generally being made up of an actuator or electromagnet that when activated moves a rotation blocking mechanism of a swivel latch of the door opener towards an open position, in which said swivel latch enables the release of the bolt from the lock with the subsequent possibility of opening the door.
These door openers were previously designed to be powered by a specific alternating or direct current having a specific voltage, which was a drawback for both manufacturers and installers who needed to have different door opener models in order to meet the needs of the market, especially with regard to door opener repairs.
To solve this drawback, the owner of the present invention developed an electric door opener, described in utility model U201430862 , which comprises an electrical circuit with a connection terminal strip connected to an alternating or direct power current having a voltage comprised between 6 and 28 Volts and a power output of the actuator or electromagnet with electrical pulses for a predetermined opening time, and afterwards, a current with continuous voltage.
Subsequently, the same applicant of the invention developed an electronic circuit applicable to electronic door openers, described in the Spanish national patent application P201431965 , with characteristics intended to improve control over powering a solenoid that is responsible for actuating a cam or locking/unlocking element of the door opener, initially powering the solenoid with a maximum energy based on input with a range of 6 to 28 V having an alternating or direct current, and afterwards, in a low-power mode, keeping the solenoid activated until disconnecting the main power.
The aforementioned electronic circuit comprises a rectifying block connected by two non-polarised connectors to the main power, a voltage regulator connected to a rectifying block and which provides internal, secure and stable power to a microprocessor that determines the main power level by means of a conditioning stage of the power and provides timing to activate a power stage that initially powers a solenoid with the maximum energy based on the main power, and afterwards, a low-power mode by using pulse width modulation.
However, the aforementioned electronic circuits applicable to electronic door openers has some aspects that can be improved, since they do not have any indicator element that makes it possible to determine by means of simple visual observation whether the circuit is operating correctly or if there are any problems due to, for example, electrical overload or incorrect handling.
Another aspect of these electronic circuits that can be improved is that they do not have specific means that make it possible to control at all times the positioning and state of the solenoid, as well as other aspects such as for example how many times the door has been opened and closed and what is the current state of the door: open or closed.
Therefore, the technical problem posed is the development of an electronic system applicable to electric door openers that enable the mentioned drawbacks to be resolved and, as a result, improve the operation of this type of electronic system for electric door openers.

Description of the invention

The electronic system applicable to electric door openers, object of this invention, comprises a number of known components, included in the preamble of claim 1 and used with the same function in the aforementioned background P201431965; specifically:

non-polarised connectors for introducing main power; within a specified range of amplitude,
a rectifying block of the main power,
an energy storage system coming from the rectifying block and made up of a capacitive element,
a voltage regulator that once the system is powered provides internal, secure and stable power to a microprocessor,
a conditioning stage,
a power stage for powering a solenoid,
a solenoid responsible for locking and unlocking the electric door opener and,
a microprocessor that monitors a conditioning stage, and timing for activating the power stage that initially powers the solenoid with the maximum energy based on the main power voltage, then moving to a low-power mode by using pulse width modulation, the solenoid remaining indefinitely activated during this process and until disconnecting from the main power.

According to the invention, this electronic system comprises an activity indicator of the system, connected to the microprocessor and which indicates by means of a light signal the activity of the system monitored by said microprocessor during the entire operational process.
This electronic system further comprises a Hall effect sensor connected to the microprocessor and powered by the voltage regulator, such that when said Hall effect sensor detects a magnetic field produced by the solenoid, which determines mechanical actuation, it independently activates a first output voltage or, alternatively, sends a detection signal of said magnetic field to the microprocessor causing the activation of a second output voltage by said microprocessor.
This first or second output voltage is connected to an external control switchboard and provides it with a signal of the state of the solenoid, said switchboard providing information on the open or closed state of the door at all times.

Brief description of the content of the drawings

As a complement to the description provided herein, and for the purpose of helping to make the characteristics of the invention more readily understandable, the present specification is accompanied by a set of drawings, which, by way of illustration and not limitation, represent the following:

Figure 1 shows a diagram of an exemplary embodiment of the electronic system for electric door openers according to the invention.

Detailed description of embodiments of the invention

In the exemplary embodiment shown in the attached figure, the electronic system for electric door openers of this invention comprises the elements listed below with the corresponding references.

1: Rectifying block.
2: Energy storage.
3: Voltage regulator.
4: Conditioning stage.
5: Microprocessor.
6: Power stage.
7: Solenoid.
8: Activity indicator of the system (LED).
9: Hall effect sensor.
a: AC/DC main power.
b: Internal, secure and stable power to the microprocessor.
c: Pulse width modulation.
d: First voltage output.
e: Second voltage output.

The AC/DC main power (a) is introduced into the rectifying block (1) through two non-polarized connectors, within the specified range of amplitude (minimum, maximum).
Once the system is powered, the voltage regulator (3) which provides internal, secure and stable power (b) to the microprocessor (5) becomes operational, being supported by an energy storage system (2) made up of a capacitive element.
The microprocessor immediately begins to operate and monitors the conditioning stage (4).
At this point, timing is provided to activate the power stage (6) with the maximum energy based on the main power voltage (a); then moving to low-power mode by using pulse width modulation (c). During this process, the solenoid (7) will be activated indefinitely.
If the electronic system is disconnected from the main power (a), the microprocessor (5) is deactivated and, as a result, the power stage (6) no longer actuates the solenoid (7), which returns to the initial rest state thereof.
During the entire operational process, monitoring of the activity of the system is carried out by means of the light signal of an activity indicator of the system made up of an LED indicator (8) that given the low power thereof is especially suitable for this function.
The electronic system further comprises the implementation of a Hall effect sensor (9) powered by the voltage regulator (3). If the Hall effect sensor detects a magnetic field, produced by the solenoid (7) which determines mechanical actuation, it will independently activate a first voltage output (d). Alternatively, the Hall effect sensor (9) can send a magnetic field detection signal to the microprocessor (5) and this microprocessor will activate a second voltage output (e).
This first voltage output (d) or second voltage output (e) is connected to an external control switchboard (not shown), providing a signal of the state of the solenoid (7), and subsequently, information on the open or closed state of the door at all times.
Having sufficiently described the nature of the invention, in addition to an example of a preferred embodiment, it is hereby stated for the relevant purposes that the materials, shape, size and layout of the described elements may be modified, provided that it does not imply altering the essential characteristics of the invention claimed below.

Claims

An electronic system applicable to electric door openers, comprising:
- non-polarised connectors for introducing main power (a); within a specified range of amplitude,

- a rectifying block (1) of the main power,

- an energy storage system (2) coming from the rectifying block and made up of a capacitive element,

- a voltage regulator (3) that once the system is powered provides internal, secure and stable power (b) to a microprocessor (5),

- a conditioning stage (4),

- a power stage (6) for powering a solenoid (7),

- a solenoid (7) responsible for locking and unlocking the electric door opener and,

- a microprocessor (5) that monitors a conditioning stage (4), and provides timing for activating the power stage (6) that initially powers the solenoid with the maximum energy based on the main power voltage (a), then moving to a low-power mode by using pulse width modulation (c), the solenoid (7) remaining indefinitely activated during this process and until disconnecting from the main power; characterised in that it comprises:
- an activity indicator of the system (8), connected to the microprocessor (5) and which indicates by means of a light signal the activity of the system monitored by said microprocessor (5) during the entire operational process and;

- a Hall effect sensor (9) connected to the microprocessor and powered by the voltage regulator (3), such that when said Hall effect sensor detects a magnetic field produced by the solenoid (7), which determines mechanical actuation, it independently activates a first output voltage (d) or, alternatively, sends a detection signal of said magnetic field to the microprocessor (5) causing the activation of a second output voltage (e) by said microprocessor (5).
The electronic system according to claim 1, characterised in that the activity indicator of the system is an LED diode.
The electronic system according to claim 1, characterised in that the first voltage output (d) or second voltage output (e) is connected to an external control switchboard, providing a signal of the state of the solenoid (7), and subsequently, information on the open or closed state of the door at all times.