7results about How to "Realize self-start" patented technology

The present invention provides an auxiliary power supply circuit and method for realizing energy storage battery balancing, including a voltage stabilizing output module, a power supply regulating module and a control module; the input end of the voltage stabilizing output module is electrically connected to the voltage output end of the battery management chip, the first output end of the voltage stabilizing output module is electrically connected to the power supply end of the control module and the auxiliary power bus of the energy storage system at the same time, the second output end of the voltage stabilizing output module is electrically connected to the power supply input end of the power supply regulating module; the enable end of the power supply regulating module is electrically connected to the control output end of the battery management chip, the regulating output end of the power supply regulating module is electrically connected to the output voltage control end of the voltage stabilizing output module; the control signal output end of the control module is electrically connected to the power supply regulating module. The present invention improves the reliability of the auxiliary power supply while realizing active balancing at the battery module level.

The application discloses a multi-adaptive quick-release plug, relates to the technical field of packaging material auxiliary tools and pipe end plugging, and comprises a pair of three-inch plugging pieces and six-inch plugging pieces which are assembled with each other and installed in corresponding paper cores. The three-inch plugging piece comprises a three-inch plug which is plugged at the end of a three-inch paper core, and a circle of three-inch supporting plates is fixedly installed at the end of the three-inch plug. The six-inch plugging piece comprises a six-inch plug which is plugged at the end of a six-inch paper core, and a circle of six-inch supporting plates is fixedly installed at the end of the six-inch plug. An extrusion plate is fixedly installed on the inner wall of each six-inch supporting plate. When the three-inch plugging piece is installed in the six-inch plugging piece, the three-inch supporting plates will be in extrusion contact with the extrusion plates, push the six-inch supporting plates to expand outward, and extrude the three-inch supporting plates to shrink inward. The multi-adaptive quick-release plug disclosed by the application has the effects of being multifunctional, high in strength and stability.

The invention discloses a compact mode-locked fiber laser, which belongs to the technical field of time frequency and comprises a shell, an optical device and an electrical device, the interior of the shell is divided into a space A and a space B; the electrical device comprises a laser adapter plate, a circuit control board and a semiconductor laser driving board; the laser adapter plate and the circuit control board are located in the space A, and the semiconductor laser driving board is located in the space B; the optical device is located in the space A; the optical device comprises a collimator, a half-wave plate, a polarization beam splitter, an optical isolator, a PZT, a semiconductor laser, a wavelength division multiplexer and two 1 / 4 wave plates. The semiconductor laser is mounted on the laser adapter plate; the wavelength division multiplexer is connected with the semiconductor laser, the collimator and the PZT through optical fibers. According to the invention, layout optimization of internal devices of the mode-locked fiber laser is realized, and the influence of temperature during integrated arrangement is solved on the basis of realizing miniaturization, so that the mode-locked stability is ensured.

The motor comprises a rotor, the rotor comprises a rotating shaft, a permanent magnet cage, an air guide structure and a bearing, the rotating shaft is arranged on the axis of the motor, the rotating shaft is axially connected with the permanent magnet cage and the bearing, the permanent magnet cage comprises an end plate, a permanent magnet rod body, a fixing piece and a magnetic isolation body, and the permanent magnet rod body is arranged on the end plate. The end plates are end structures of permanent magnet cages and are axially fixed on the rotating shaft, a plurality of permanent magnet rod bodies are connected between the end plates, the permanent magnet rod bodies are fixed on the end plates through fixing pieces, the permanent magnet rod bodies are circumferentially distributed at the edges of the end plates, the permanent magnet rod bodies are obliquely arranged relative to the axis, and all the permanent magnet rod bodies are arranged in parallel; and the rotating shaft between the end plates is also sleeved with a magnet isolator. Directional arrangement of the magnetic pole direction is realized by arranging a plurality of regularly arranged permanent magnet rod bodies, so that self-starting is realized, and the load is reduced.

The application discloses application of two-dimensional transition metal boride in a saturable absorber and a laser, and the two-dimensional transition metal boride is Mo 4 / 3 B 2‑x T z The application builds a fiber laser based on two-dimensional Mo 4 / 3 B 2‑x T z , optimizes Mo 4 / 3 B 2‑ x T z saturable absorber and a cavity structure of the fiber laser, and after adjusting pump power and a polarization state in the cavity, self-starting of ultrashort and high-repetition-rate mode-locked pulses is realized.

The utility model discloses a device for detecting circular ring products, which belongs to the technical field of circular ring product detection and comprises a base and a rotating shaft, a product positioning seat is connected onto the rotating shaft, a support groove is arranged on the base, the rotating shaft is placed in the support groove, and a detection probe positioned on one side of the rotating shaft is further mounted on the base. A driving assembly used for driving the rotating shaft to rotate is arranged on one side of the base. According to the utility model, the to-be-detected circular ring product is installed on the product positioning seat, the driving assembly drives the rotating shaft to rotate so as to drive the to-be-detected circular ring product to rotate, the detection probe is used for detecting internal cracking and other defects of the to-be-detected circular ring product, and the device has the characteristics of simple structure, high detection efficiency and low manual labor intensity; the first inductive switch corresponding to the driving wheel is installed on the base, the driving wheel is connected with the inductive contact, it is guaranteed that the rotating shaft rotates by more than 360 degrees, and therefore full inspection of circular ring products is guaranteed.

The invention discloses an induction power taking circuit and a control method, and relates to the technical field of power distribution network automation. The induction power taking circuit comprises an energy taking coil, a rectification circuit, an energy storage filter circuit, a protection circuit, a voltage measurement circuit, a voltage comparison circuit, a power supply output control switch, a switch control circuit, an after-switching filter circuit, a switch control auxiliary circuit, a main control peripheral circuit and a main control single-chip microcomputer. Sufficient electric energy can be obtained under low current, circuit self-starting is achieved under the condition that a standby power supply is not needed, meanwhile, after the master control single-chip microcomputer is started, low power consumption of the whole circuit is achieved under the control of software and hardware of the single-chip microcomputer, and stable work of the circuit under the condition that primary current is small is achieved.