7results about How to "Easy to parallel" patented technology

The invention discloses a charging pile power system, an expandable full-matrix flexible charging pile and a power distribution method. The charging pile power system comprises eight charging modules and thirty-two high-voltage direct-current contactors. The eight charging modules form a rectangular framework, each charging module is connected with the other seven charging modules through seven high-voltage direct-current contactors, and four charging modules on one side of the rectangular framework are all connected with one high-voltage direct-current contactor towards the outside of the rectangular framework. The four charging modules on the other side of the rectangular framework are provided with connecting ports towards the outside of the rectangular framework. The device is small in size, low in noise and small in occupied area, and can be placed in a charging station more flexibly.

The invention relates to the technical field of high-voltage cascade energy storage systems, and discloses a high-voltage cascade energy storage system based on nested power modules and a control method thereof.The high-voltage cascade energy storage system comprises three phases of chain type energy storage bridge arms connected with three phase lines of a power grid respectively, and each phase of chain type energy storage bridge arm comprises a plurality of cascaded nested power modules; each nested power module comprises a plurality of direct-current chain type energy storage units and an H-bridge circuit, the plurality of direct-current chain type energy storage units are connected in parallel and then are connected with the direct-current side of the H-bridge circuit, and the alternating-current side of the H-bridge circuit is connected with an alternating-current switch; the direct current chain type energy storage unit comprises a plurality of energy storage modules, an electric reactor and a direct current switch, the plurality of energy storage modules are cascaded and then are sequentially connected with the electric reactor and the direct current switch, each energy storage module comprises a battery pack and a half-bridge circuit connected with the battery pack, and the half-bridge circuit is used for charge state balance control of the battery pack. According to the invention, any battery pack can be bypassed after a fault, and the operation reliability of the high-voltage cascade energy storage system is improved.

The utility model relates to the technical field of energy storage, and discloses a battery pack and an energy storage system. The energy storage system comprises a battery pack, the battery pack comprises a box body and a battery module, a first panel of the box body is provided with a first connector lug and a second connector lug, and the first connector lug and the second connector lug are located on the two sides of the first panel in the first direction respectively; the battery module is arranged in the box body and comprises a plurality of battery cells arranged in series, the battery cell located at the head end of a series loop is connected with a first output row, the battery cell located at the tail end of the series loop is connected with a second output row, and the first output row and the second output row are located on the two sides of the battery module in the first direction respectively; the first output bar is electrically connected with the first connector lug, and the second output bar is electrically connected with the second connector lug. The first connector lug and the second connector lug are separately arranged on two sides, so that when a plurality of battery packs are connected in parallel, clear and regular wiring can be ensured, parallel installation is facilitated, misconnection between positive and negative electrodes is not easy to occur, and the risk of short circuit is reduced.

The utility model discloses a kind of deburring is used to polishing device for aluminium ingot, it includes: the inner diameter of upper cover is same with the inner diameter of placing frame, and the upper end surface of upper cover and placing frame is threadedly connected;Several fender strips are divided into two groups and are respectively fixedly connected on the inner side surface of placing frame and the inner side surface of upper cover;The two sides of placing frame are rotatably connected with two supports respectively;Placing frame is rotatably connected with support by rotating motor;Two fixed screws are respectively placed on the front and rear end surfaces of placing frame, and the end of fixed screw is placed in the interior of placing frame after passing through the outer side surface of placing frame, and fixed screw is threadedly connected with placing frame;Abrasive grain flow generator is placed in the side of placing frame;Lifting cylinder is fixedly connected with the upper end surface of abrasive grain flow generator;The lifting rod of lifting cylinder is fixedly connected with the upper end surface of injection disc after passing through the upper end surface of abrasive grain flow generator.The beneficial effects of the utility model are: the process of deburring does not need to be constantly disassembled and installed, and the purpose of more time saving.

The utility model relates to a frequency synchronizing signal circuit for wired parallel operation of inverters, which is used for transmitting and receiving frequency synchronizing signals of two inverters in parallel operation and comprises a signal transmitting circuit and a signal receiving circuit, and the output end of the signal transmitting circuit and the input end of the signal receiving circuit are the same pair of connecting ends. A frequency synchronizing signal output by the host micro-control unit is transmitted to the slave synchronizing signal end through the signal transmitting circuit, and then is transmitted to the slave micro-control unit through the slave synchronizing signal end, so that the frequency synchronization of the slave and the host is realized. The signal transmitting circuit and the signal receiving circuit realize bidirectional transmission of frequency synchronization signals, and can transmit the frequency synchronization signals and receive the frequency synchronization signals. And meanwhile, the transmitting end and the receiving end of the signal are isolated through the photoelectric coupler, so that the circuit has good electric insulation capability and anti-interference capability. The circuit is built through discrete components, parallel operation of analog signals can be achieved, and the circuit cost is reduced.

The utility model discloses a shear type doubling device, which comprises a first holding rod, a second holding rod and a thread guide, the second holding rod is rotatably arranged on the first holding rod, and the second holding rod and the first holding rod are arranged in a shear mode; the fan-shaped rack is integrally formed at the top of the second holding rod; the connecting cylinder is integrally formed and arranged at the top of the first holding rod; the containing groove is formed in the circumference of the inner wall of the connecting cylinder in a circular shape; an outer cylinder of the damping bearing is arranged in an inner cavity of the accommodating groove; and the rotary assembly is arranged in the inner cylinder of the damping bearing, and the rotary assembly and the fan-shaped rack are mutually meshed and matched together. According to the shear type doubling device, the function of doubling through manual operation is achieved, the shear type doubling device is very convenient to use, does not depend on electric drill driving, improves use diversity and flexibility, and is convenient to carry.

The utility model relates to a centralized scheduling control terminal for an energy station. The centralized scheduling control terminal comprises a terminator and a mounting plate, the bottom end of the mounting plate is fixedly connected with a rotating shaft, the axis of the rotating shaft is in butt joint with the corner of the bottom end of the terminator, and the terminator moves around the axis of the rotating shaft when rotating; a first groove is formed in the face, facing the terminal device, of the mounting plate, and a second groove is formed in the face, facing the mounting plate, of the terminal device. Position adjusting assemblies are arranged at the corners of the mounting plate, the two position adjusting assemblies on the same side can be combined into one position adjusting assembly according to actual requirements, and each position adjusting assembly mainly comprises a first positioning seat, a second positioning seat and a mounting pad. And by rotating a second threaded rod, the positions of the mounting pads are changed, under the action of a flexible pad, the situation that protrusions exist on the surface of the wall can be handled, the multiple mounting pads are located at different depths, the mounting plate is kept in the horizontal state, and the face of a worker is parallel to the face where the terminal device is located conveniently.