MULTIPARALLEL VARIABLE FREQUENCY DRIVE AND CONTROL METHOD THEREOF

    公开(公告)号:EP4485794A1

    公开(公告)日:2025-01-01

    申请号:EP23847894.5

    申请日:2023-12-18

    Abstract: The present invention relates to a multiparallel variable frequency drive (1) without a DC bus connection between power stages (3, 4 i,...,n ) connected in parallel and the control method thereof, which allows eliminating the power loss of the drive derived from increasing the power stages. The drive has a master control module (5) for the master power stage (3) and N-slave control modules (6 i,...,n ) for N-power stages (4 i,...n ). The drive additionally comprises ring control lines (8) and synchronization lines (7). The master control module is configured for controlling the motor to which the drive is connected and sending the control setpoints (voltage and current) to the slave control modules in such a way that all power stages deliver the same voltage and the same current to the motor.

    ACCESS CONTROL SYSTEM
    3.
    发明公开

    公开(公告)号:EP4471238A1

    公开(公告)日:2024-12-04

    申请号:EP23746530.7

    申请日:2023-01-24

    Applicant: Ojmar, S.A.

    Abstract: The present invention relates to an access control system comprising a control circuit (7), a push button (4) movable from a distal position to a proximal position, assisted by an elastic element (4.d) to keep it in the distal opening position, a tab (3), configured to be moved by means of the push button (4), and establish the closure of the access, a locking device (5) for locking the closing position of the tab (3), an access identification element that communicates with the control circuit (7) that locks the closing position of the tab (3) when the control circuit (7) identifies the access element, characterised in that it comprises a rotating element that rotates when the push button (4) is actuated, a clutch mechanism (6.c) that transmits the rotation movement of the rotating element to an energy generating motor (6.a) to power the control circuit (7) when the push button (4) is actuated, avoiding the use of batteries.

    REFRIGERATION CONTAINER
    5.
    发明公开

    公开(公告)号:EP4467906A1

    公开(公告)日:2024-11-27

    申请号:EP22921773.2

    申请日:2022-02-08

    Abstract: The present invention relates to a thermal insulating container that slows the rise in temperature, providing a configuration that increases both the interior insulation of the container and its ability to reflect emissions incident on the exterior of the container, insulating same from external radiation and convection, for which it is characterised by comprising an inner aluminium coating (2) on the entire inner surface of the container and an outer aluminium coating (3) on the entire outer surface of the container (1). The inner (2) and outer (3) coatings comprise one or more sheets of aluminium. Furthermore, the container comprises a lid (4), the outer surface of which is provided with an outer coating (3), and the back surface of which forms part of the interior of the container (1) and is provided with an inner coating (2). The inner (2) and outer (3) coatings are glued to the surface.

    MECHATRONIC METHOD AND SYSTEM FOR CASCADE ACTIVATION

    公开(公告)号:EP4456374A1

    公开(公告)日:2024-10-30

    申请号:EP22910263.7

    申请日:2022-12-15

    Applicant: Ojmar S.A.

    Abstract: The invention relates to a cascade activation method and mechatronic system for simultaneous generation and consumption. The system comprises: a non-return diode connected to an electric generator; a first voltage regulator connected to a microcontroller; a voltage converter; an actuator, which has an activation voltage greater than the first activation voltage of the first voltage regulator, and wherein the actuator is configured to simultaneously consume a portion of the electrical energy generated by the electric generator. The method comprises listing the elements of the mechatronic system that require power; calculating the activation sequence of the elements based on the minimum activation voltage and the activation time interval; selecting the electric generator based on the energy/power that needs to be provided to the mechatronic system; and programming the microcontroller with the activation sequence.

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