Abstract: The present disclosure provides a material conveying module and a material conveying apparatus, where the material conveying module includes a driving part and a sub-controlling module; the driving part is configured to drive a material tray of the material conveying apparatus to move, the sub-controlling module is fixed on the driving part, and an end of the sub-controlling module is signal-connected to the driving part and another end of the sub-controlling module is configured to signal-connect to a master controlling module of the material conveying apparatus, and the sub-controlling module is configured to, under an action of the master controlling module, control the driving part to operate.

Abstract: A leakage transformer is provided. The leakage transformer includes a first plate, a second plate, a plurality of winding pillars, a primary winding, a secondary winding and a plurality of magnetic shunt elements. Each magnetic shunt element is disposed between the two corresponding winding pillars, and there is a gap between every two neighboring magnetic shunt elements. Alternatively, the magnetic shunt element is disposed on the first plate and aligned with the corresponding winding pillar, and there is a gap between the magnetic shunt element and the second plate. A leakage inductance of the leakage transformer is determined by the gap.

Abstract: A magnetic component includes a first housing, a second housing, a magnetic core assembly, a pin and a high-current carrier. The first housing is in a hollow structure and is provided with a first pin socket and a second pin socket. The second housing is snap-fitted with the first housing to form an installation space, and is provided with a first socket and a second socket. The magnetic core assembly is arranged in the installation space, the pin is connected with a leading wire of the magnetic core assembly, and the pin is arranged in the first pin socket or the second pin socket. The high-current carrier passes through the second housing, and includes a connection section for connecting to a circuit board, and the high-current carrier is arranged in the first socket or the second socket.

Abstract: A battery exchange system and a batteries providing method thereof are disclosed. The battery exchange system is configured to perform the method that includes: receiving a request to exchange a target number of batteries; grouping a plurality of batteries in the battery exchange system based on the target number of batteries into a plurality of battery groups; calculating a plurality of scores for the plurality of battery groups based on a plurality of weights and a plurality of characteristic parameters; and selecting an optimal battery group with the optimal score among the plurality of battery groups to provide the target number of batteries based on the plurality of scores. In this way, issues caused by improper battery selection can be effectively improved.

Abstract: A power converter is provided. The power converter includes first to fourth switches electrically connected in series, a flying capacitor and a controller. Positive and negative terminals of the flying capacitor are electrically connected to the second and third switches respectively. The controller operates the first and fourth switches to perform a first complementary switching with a first dead time, and operates the second and third switches to perform a second complementary switching with a second dead time. The controller determines to regulate the first or second dead time by detecting a capacitor voltage of the flying capacitor, such that the capacitor voltage of the flying capacitor is maintained within a balance voltage range.

Abstract: A power conversion circuit for driving motor and a control method thereof are provided. The control method includes: comparing a control command with a carrier wave to acquire a PWM signal; identifying whether a phase difference between the output voltage and current falls within a range; if the phase difference falling within the range, determining whether a zero-sequence voltage is positive or negative according to the output voltage and current; injecting the zero-sequence voltage into the control command to acquire a synthesized command, and detecting maximum and minimum voltage values of the synthesized command after a period; according to the zero-sequence voltage determined to be positive or negative, selecting the maximum or minimum voltage value to perform a logic reversal operation; after stopping injecting the zero-sequence voltage, acquiring an output expected value; and comparing the output expected value with the carrier wave for adjusting a duty ratio of PWM signal.

Abstract: A connector is disclosed and includes a main body, a sleeving component, a conductive terminal and a signal terminal. The main body has an opening end and a sleeved end opposite to each other. An electronic device end is matched with the connector through the opening end. The sleeving component is slidably disposed on the sleeved end, and includes a conductive contact portion and a signal contact portion arranged in parallel. The conductive terminal is fixed to the main body for connecting with the conductive contact portion. The signal terminal is fixed to the main body for connecting with the signal contact portion. When the connector is detached from the electronic device end, the sleeving component is displaced relative to the main body, the signal contact portion is separated from the signal terminal, and the conductive terminal end and the conductive contact portion are maintained in an electrical connection.

Abstract: An immersion cooling system is provided. The immersion cooling system includes a box, an upper cover, plural fixing components, plural latches and a link module. The box has an opening upwardly. The upper cover covers the opening. The fixing components are disposed on the box and arranged adjacent to the outer perimeter of the opening. The latches corresponding to the fixing components are disposed on the upper cover. The link module includes plural crossbars corresponding to the latches. The link module moves downwardly close to the upper cover, scroll-wheels of the latches roll along limiting surfaces of corresponding fixing components and press against the upper cover, the upper cover closes the opening to form an airtight space. The link module moves upwardly away from the upper cover, the scroll-wheels are separated away from the limiting surfaces of corresponding fixing components, allows the upper cover to separate from the opening.

Abstract: A speed reducer comprises a transmission shaft, an eccentric wheel, a first wheel assembly, a rotating wheel and a second wheel assembly. The first wheel assembly comprises a first wheel disc and at least one first roller. The at least one first roller is disposed on the inner wall of first wheel disc. The rotating wheel comprises a main body comprising an outer ring structure and a concave structure. The outer ring structure comprises at least one first tooth. The at least one first tooth is in contact with the corresponding first roller. At least one second roller is disposed within the concave structure. The second wheel assembly comprises a second wheel disc and at least one second tooth. The at least one second tooth is disposed on an outer periphery of the second wheel assembly. The at least one second tooth is in contact with the corresponding second roller.

Abstract: An electrical connector includes a housing having a front end and a rear end, an insulator including a tongue portion disposed at the front end and a base disposed at the rear end, and plural terminals including plural ground terminals, plural power terminals and plural signal terminals. Each of the plural terminals has a first contact portion, a second contact portion and a connection portion connecting the first contact portion with the second contact portion. The first contact portions are disposed on surfaces of the tongue portion in a widthwise direction perpendicular to a direction from the front end to the rear end, and the second contact portions are extended out from the base. Widths in the widthwise direction of the second contact portions of the plural ground terminals and the plural power terminals are larger than a width of the first contact portion respectively thereof.

Abstract: A bobbin structure, a magnetic element and a method for leading out a coil are provided. The bobbin structure includes a main body, a guide part and lead-out sleeve. The main body is used for winding a coil; the guide part is disposed at an end portion of the main body in a vertical direction, where, a guide channel is provided in the guide part; the lead-out sleeve is disposed on the guide part and configured to communicate with the guide channel, the lead-out sleeve includes an accommodating structure with an opening, and the accommodating structure is configured to protrude from the guide part; the guide channel is used to guide a coil end into the accommodating structure, the accommodating structure is malleable and configured to be able to close the opening after being pressed to form a closed annular space for wrapping the coil end.

Abstract: A circular current suppression method, a switch control device, and a power conversion system are disclosed, which convert a difference between a voltage converted from a common-mode current of several input currents of a power factor corrector and a bus-voltage difference into a reference current, convert a difference between a reference voltage and a total voltage into a total DC current, and add cosine even-numbered-harmonic components of the reference current based on the total DC current, a target current, and one of several input currents to calculate a compensation current that is converted into a voltage as one of at least one switching command output to the power factor corrector, thereby suppressing the circular current in a configuration of parallel power conversion modules.

Abstract: An integrated transformer includes: two magnetic cores, wherein each magnetic core includes two magnetic yokes arranged opposite to each other along a first direction and two magnetic columns located between the two magnetic yokes, the two magnetic columns are arranged opposite to each other along a second direction; two short-circuited magnetic blocks, wherein one magnetic yoke in one of the magnetic cores is connected to one magnetic yoke in the other magnetic core through one of the short-circuited magnetic blocks to connect the two magnetic cores in series into a ring; four first windings, wound on four magnetic columns of the two magnetic cores, respectively; and a second winding, wound on the magnetic core or the short-circuited magnetic block, wherein magnetic flux directions generated by the second winding in two magnetic columns of any one of the magnetic cores are the same.

Abstract: The embodiments of the present application provide a detecting method and a power transmitter in a wireless charging system. The power transmitter includes: a signal sampling circuit, configured to sample a signal generated by an oscillation circuit of the power transmitter; and a control circuit, coupled to the signal sampling circuit, configured to: obtain an oscillation waveform based on the obtained sampled values; perform an integral operation on the oscillation waveform and average the result of the integral operation to obtain an integrated average value; obtain a oscillation frequency of the oscillation waveform; and determine whether there is a foreign object or a power receiver approaching the power transmitter, based on the integrated average value and the oscillation frequency. The power transmitter can effectively improve the accuracy of determining whether there is a foreign object or a power receiver approaching the power transmitter.

Abstract: An inverter assembly is disclosed and includes a base, a contact terminal, an output copper busbar and an elastic component. The output copper busbar is disposed on the base. The output copper busbar includes an output portion configured to electrically connect with the contact terminal. The elastic component is disposed on the base and includes an abutting element, an elastic element and an accommodation seat. The accommodation seat is disposed on the base, the abutting element is connected to the accommodation seat through the elastic element along an axial direction. When the base is docked with the contact terminal, the abutting element of the elastic component abuts against the output portion to attach to the contact terminal, and the contact terminal abuts against the abutting element and the elastic element, so that a restoring force provided by the elastic element keeps the output portion abutting against the contact terminal.

Abstract: A photovoltaic energy storage system and a control method for the photovoltaic energy storage system are provided. The photovoltaic energy storage system includes an energy storage unit, a photovoltaic array assembly, an inverter and a rapid shutdown switch. The inverter is electrically coupled to the energy storage unit and the photovoltaic array assembly. The rapid shutdown switch is electrically coupled to the inverter, a power grid and a load. A detecting and controlling circuit of the inverter detects at least two of a first voltage, a second voltage and a third voltage, and determines whether the rapid shutdown switch is turned off according to the detected voltages and a reference value. When it is determined that the rapid shutdown switch is turned off, a connection between the inverter and the energy storage unit and a connection between the inverter and the photovoltaic array assembly are cut off.

Abstract: An electronic device includes: a system board; a load, located on the first side of the system board and including a power supply region, the power supply region includes load pins arranged in a plurality of rows and in a plurality of columns; and at least one column of output capacitors, located on the second side of the system board along a third direction; at least one row of the load pins is a first arrangement row, the first arrangement row includes a plurality of load pin groups arranged sequentially along the second direction, each of the load pin groups includes at least two load pins of a same polarity; and two ends of a vertical projection of each column of the output capacitors on the power supply region are located at two sides of a centerline, in the third direction, of at least one first position pin.

Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a controlling device and a capacitor device. The switching device includes two switching circuit combinations. Each of the switching circuit combinations includes two switching circuits connected in parallel. Each of the switching circuits includes a switching unit. The controlling device is configured for outputting a first control signal and a second control signal to control the switching circuits of the first switching circuit combination and the switching circuits of the second switching circuit combination respectively. The first control signal and the second control signal are out of phase with each other. On a direction, the switching units of the first switching circuit combinations and the switching units of the second switching circuit combinations are alternately arranged, each of a plurality of capacitors of the capacitor device is neighboring to the two adjacent switching units.

Abstract: An adjustable rack assembly, which may be used in a cabinet, includes a rail and a sliding component. The rail extends along a first direction, and includes a rail body, a bent portion and plural positioning grooves. The bent portion protrudes inwardly from an outer edge of the rail body, and the plural positioning grooves are disposed on the bent portion along the first direction. The sliding component includes a sliding body, a limiting portion and a guiding groove. The limiting portion is connected to the sliding body, and the guiding groove and the bent portion are mutually matched. When the sliding component is misaligned with the plural positioning grooves in the first direction, the sliding component is allowed to slide in the first direction. When the sliding component is engaged with the positioning groove, the sliding component is locked on the rail.