Thinx S.r.l.

A swivel connecting device (10) comprising at least one connecting element (11), which in turn comprises a first eyelet-shaped portion (11a), and a pair of half-shells (12) between which the at least one connecting element (11) is housed with the first eyelet-shaped portion (11a) protruding externally from a volume delimited by the pair of half-shells (12) and in a rotatable manner around a development axis (A), wherein a second portion (11b) shaped like an elongated stem along the development axis (A) extends from the first eyelet-shaped portion (11a) of the at least one connecting element (11) between the half-shells (12), wherein the connecting element (11) comprises a third enlarged portion (11c) at a free termination of the second portion (11b), the third enlarged portion comprising at least one surface (11c') developing transversal to the development axis (A), wherein each half-shell of the pair of half-shells (12) comprises a respective through opening, wherein each opening defines a seat (14) in which it engages the at least one transversal surface (11c') of the enlarged portion (11c) of the connecting element (11).

A swivel end device (10) for connection to a looped rope end comprising at least one connecting element (11), which comprises a first eyelet-shaped portion (11a), and a pair of walls (12) not orthogonal to a development axis (A) and constrained to each other according to a facing and spaced apart arrangement so as to define a first (12a) and a second housing compartment (16), side by side along the development axis (A), wherein the at least one connecting element (11) is housed in the first housing compartment (12a) in a rotatable manner around a development axis (A) and with the first eyelet-shaped portion (11a) protruding externally from the first housing compartment (12a), and wherein the second housing compartment (16) houses a shaft (17) around which a looped rope end (20) can be constrained, and wherein it comprises a pair of side walls (21b,23) which extend between the pair of facing walls (12) at the lateral ends of the same (12) and laterally delimit at least the second housing compartment (16) in such a way as to define with the pair of facing walls (12) at least one compartment peripherally closed around the development axis (A).

A grid-connection point control method for a photovoltaic power station and a photovoltaic power station is provided. The grid-connection point control method for the photovoltaic power station includes: obtaining sampled electrical signal collected by respective electricity meters; determining target power corresponding to a target device among the at least one device that is connected to a target branch circuit among the one or more branch circuits, based on a first sum of the sampled electrical signals, a first power reference value corresponding to the target branch circuit, and a first capacity of the target device; and controlling the target device based on the target power.

Provided are a power supply circuit, a power supply device, and a power supply system, which belong to the field of power supply technologies. The power supply circuit includes: a bus; a first branch having a first end electrically connected to the bus, and a second end electrically connected to a first port; a second branch having a first end electrically connected to the bus, and a second end electrically connected to a second port; a plurality of third branches, each of the plurality of third branches having a first end electrically connected to the bus, and a second end electrically connected to a corresponding one of power ports, and each of the plurality of third branches being provided with a first switch; and a control circuit connected to a drive terminal of the first switch, the control circuit being configured to control the first switch to be turned on or off. Each of the first port and the second port is configured to be connected to a load or an inverter. Each of the power ports is configured to be connected to a power grid or a power source. Therefore, a supply power of the power supply circuit can be increased to meet a power demand of the load.

The present invention relates to a hydrogen production system (1). The system (1) comprises an electrolyser (10), equipped with an internal tank (101), adapted to produce hydrogen from the electrolysis of water, and a water distribution pipe (62) adapted to connect the internal tank (101) of the electrolyser (10) to a water source (50).Advantageously, the system also comprises an electrolyte tank (20) adapted to contain a quantity of electrolyte equal to or greater than the quantity of electrolyte contained by the internal tank (101) of the electrolyser (10), and a waste tank (30) adapted to contain a quantity of fluid greater than the quantity of electrolyte contained by the internal tank (101) of the electrolyser (10). Furthermore, the system comprises an electrolyte distribution pipe (63) adapted to connect the internal tank (101) of the electrolyser (10) to the electrolyte tank (20), a drain pipe (64) adapted to connect the internal tank (101) of the electrolyser (10) to the waste tank (30), and a water control valve (71) adapted to regulate the flow of fluid in the water distribution pipe (62), an electrolyte control valve (72) adapted to regulate the flow of fluid in the electrolyte distribution pipe (63), and a control valve (73) adapted to regulate the flow of fluid in the drain pipe (64). Finally, the system comprises a control unit (40) connected to the electrolyser (10) and the valves (71-73) to control its operation. In particular, the electrolyser (10) measures at least one operating voltage of the electrolyser (10) and generates at least one electrolyte exhaustion signal based on the at least one measured operating voltage by the electrolyser (10). In addition, the control unit (40):determines an exhaustion of the electrolyte contained in the internal tank (101) as a function of the electrolyte exhaustion signal,forces the electrolyser (10) into a maintenance state,imposes the emptying of the internal tank (101) of the electrolyser (10), by opening the opening of the drain valve (73) for a first drain time,introduces a quantity of rinse water into the internal tank (101) of the electrolyser (10), by commanding the opening of the water control valve (71) for a rinse time, collects the rinse water in the waste tank (30), by commanding the opening of the drain valve for a second drain time, andfills the internal tank (101) of the electrolyser (10) with new electrolyte, by commanding the opening of the electrolyte control valve (72) for a supply time.

A DC-to-DC conversion circuit includes a bridge arm and an on-off module. The bridge arm is connected to a DC input terminal of the DC-to-DC conversion circuit and includes a first sub-bridge arm and a second sub-bridge arm. The first sub-bridge arm includes an active switch. The on-off module is connected in parallel with the first sub-bridge arm. The on-off module is turned on in response to a current of the DC-to-DC conversion circuit being greater than a target current threshold, to shunt a current through the first sub-bridge arm.

The present invention concerns a concealed automatic door closing device (10) comprising an articulation hinge (20) comprising a pair of hinge bodies (21,22) respectively connectable to a leaf and to a fixed structure, wherein the hinge bodies (21,22) are articulated to each other through a pair of arms (23,24) to rotate around a hinge axis (A) between a closed hinge condition and an open hinge condition, and an automatic movement group (30) configured to control a movement of the articulation hinge (20) between the closed hinge condition and the open hinge condition and vice versa between the open hinge condition and the closed hinge condition and intermediate positions configured to act on a first arm (23) of the pair of arms (23,24) wherein the automatic movement group (30) comprises at least one rod (35) translatable along its own longitudinal development axis (B) and constrained to the first arm (23) at a first rod end in such a way that a translation of the at least one rod (35) causes a rotation of the first articulation arm (23) around the hinge axis (A) and, consequently, a movement of the articulation hinge (20) between the closed hinge condition and the open hinge condition, wherein the at least one rod (35) is housed in a corresponding rotatable sleeve (43) and is coupled to the corresponding rotatable sleeve (43) in such a way that a rotation of the rotatable sleeve (43) causes a translation of the rod (35) along the longitudinal axis (B), and a rotary actuator (49) configured to impart rotation to the rotatable sleeve (43), and is characterized in that the rotary actuator (49) comprises a rotating shaft (45) placed in rotation around a rotation axis (R) parallel to the longitudinal axis (B) along which the at least one rod is translatable.

Provided are an inverter system and a control method for the inverter system, and relates to the field of inverter system technologies. The inverter system includes: a direct current-to-alternating current circuit, a phase relay being disposed at a phase line connected to the direct current-to-alternating current circuit; a first capacitor and a second capacitor that are connected in series between a positive bus and a negative bus of the inverter system; and a first switch module, the first switch module having a first terminal connected to inverter-side ground via a current-limiting resistor in an inverter nighttime repair circuit and a second terminal connected to a neutral point between the first capacitor and the second capacitor. The first switch module is configured to, switch, prior to the inverter system being connected to a power grid, to a first operating mode in which the first terminal is connected to the second terminal.

The present invention relates to a concealed automatic door closing device (10) comprising an articulation hinge (20) comprising a pair of hinge bodies (21,22) respectively connectable to a leaf and to a fixed structure, wherein the hinge bodies (21,22) are articulated to each other through a pair of arms (23,24) to rotate around a hinge axis (A); and an automatic recall group (30) connected to a first arm (23) of the pair of arms (23,24) of the articulation hinge (20), wherein the automatic recall group (30) comprises a pair of elastic recall means (31), each mounted between a respective first abutment element (32) fixed in translation with respect to the first hinge body (21) and a respective second abutment element (33) translatable with a movement of the first arm (23) along a longitudinal axis (B); and it is characterized in that the automatic recall group (30) comprises a group (40) for adjusting the preload of the elastic recall means (31) configured to act in a centralised and synchronous manner on both the elastic recall means (31) of the recall group (30) in such a way as to modify the recall force exerted by each elastic recall means (31) by a substantially equal or proportional amount, and in that the adjustment group (40) comprises a central drive interface (41) configured to transfer a rotation imparted thereon (41) to a pair of rotating sleeves (43), wherein, when rotated, each rotating sleeve (43) of the pair of rotating sleeves (43) is configured to impart a movement along the longitudinal axis (B) of a respective second abutment element (33) moving it closer to or away from a corresponding first abutment element (32).

The present invention relates to a method (1000-2000) of controlling an electric energy generation plant (1). The plant comprises a unit for generating electric energy from a renewable energy source (2), an electrolyzer (51) for the generation of hydrogen, a battery (8) connected to the electrolyzer (51), at least one converter (3,4) adapted to supply an available power generated by the electric energy generation unit (2) to at least one of a load and the electrolyzer (51), a control system (6) for controlling the plant (1), and input means (7). The input means are adapted to acquire at least one of input information relating to the operation of the plant (1), meteorological information of a region in which the plant (1) is located and information relating to the operation of further plants located in the vicinity of the plant (1).The method comprises that the control system performs the step of: monitoring (1002) the available power, generated by the renewable energy source (2), andwhen the available power falls below a threshold (1011), the method comprises that the control system performs the step of:estimating (1014-1017) a recovery time interval at the end of which the available power will exceed the threshold,determining (1014-1017) whether the battery is able to supply the electrolyzer (51) for said recovery time interval, and in the affirmative case, supplying (1012) the electrolyzer (51) by means of the battery (8).In particular, the step of estimating a recovery time interval comprises for estimating the recovery time interval as a function of the at least one piece of input information, wherein the input information comprises at least one among a piece of information relating to the operation of the plant (1), a piece of meteorological information of a region in which the plant (1) is located and a piece of information relating to the operation of further plants located within a predetermined monitoring radius centred on the plant (1).