14results about How to "Affect transmission" patented technology

The invention relates to the technical field of perovskite solar cell preparation, in particular to a bulk phase passivation perovskite light absorption layer, a solar cell and a preparation method, the bulk phase passivation perovskite light absorption layer is prepared by adopting a perovskite layer prefabricated liquid, the perovskite layer prefabricated liquid comprises (FA 0.95 MA0.05) 0.95 Cs0.05 Pb (I 0.95 Br0.05) 3 and m-F-PEACl, the molar concentration ratio of the (FA 0.95 MA0.05) 0.95 Cs0.05 Pb (I 0.95 Br0.05) 3 to the m-F-PEACl is 1.5: (0.1-1), m-F-PEACl and (FA < 0.95 > MA0. 05) < 0.95 > Cs0. 05Pb (I < 0.95 > Br0. 05) 3 are matched to form a bulk phase passivated perovskite layer, so that organic cations in the m-F-PEACl interact with uncoordinated lead ions or other defect sites in the (FA < 0.95 > MA0. 05) < 0.95 > Cs0. 05Pb (I < 0.95 > Br0. 05) 3 to form a stable complex or compound, the defect concentration in perovskite is reduced, comprehensive and effective passivation is realized, and the performance of the perovskite is improved. Therefore, the photoelectric property and the stability of the perovskite material are improved. The problem that comprehensive and effective passivation cannot be achieved through a perovskite thin film passivation method in the prior art is solved.

The present application discloses a kind of track flatcar rescue jib device, it is related to railway vehicle field, comprising: upper hanger seat, it is set in the inner side of pillow beam, first round hole is opened in upper hanger seat;Lower hanger seat is set on the side plate of framework, second round hole is opened in lower hanger seat, the direction of first round hole and the direction of second round hole are perpendicular to each other;Jib assembly, two ends are rotatably connected with first round hole and second round hole respectively, jib assembly includes adjusting rod and two jibs, the two ends of adjusting rod are respectively connected with jib by screw thread;The rescue jib device can solve the problem of difficult operation and long time consumption caused by narrow operation space, deflection of bogie and car body, while effectively avoiding damage to bogie accessories during rescue process, and the jib device can also be used for overall lifting during vehicle transportation.

The utility model discloses an adjustable solar photovoltaic support, relates to the technical field of solar photovoltaic supports, and aims to solve the problems that when existing outdoor solar panels are installed, a plurality of panels need to be connected through wires, so that the angle adjustment of the solar panels is limited, most adjustable solar panels can only adjust the horizontal angle, and the installation is inconvenient. And the solar panel cannot be rotated to face the sunlight direction, so that the photoelectric conversion rate is reduced. A bracket chassis is arranged below the rotating bracket; the rotating base is arranged above the support chassis, a supporting bridge plate is arranged in the middle of the rotating base, and a slip ring cable is arranged below the middle of the supporting bridge plate; the rotating clamping ring is arranged at the lower end of the rotating base, a base plate clamping ring is arranged at the upper end of the support base plate, the base plate clamping ring and the support base plate are of an integrated structure, a rotating motor is arranged at the rear end of the upper portion of the rotating base, and a rotating tooth groove is formed in the rear end of the upper portion of the base plate clamping ring.

The invention relates to the technical field of signal transmission, and provides a connector combination for transmitting high-speed signals, which comprises a female plug and a male plug, the outer periphery of the left end of the male plug is inserted into the inner periphery of the right end of the female plug, the male plug comprises an outer shell II, and air cylinders are fixedly connected to the upper parts of the front and rear sides in the outer shell II; and a limiting sliding bin is fixedly connected to the upper end of the inner middle of the second outer shell, the right sides of the front end and the rear end of the limiting sliding bin communicate with the interior of the air cylinder, a second wire holder is slidably connected to the interior of the limiting sliding bin, and a second wire arranging base is fixedly connected to the left end of the second wire holder. In the plugging process, friction between the lower surface of the second electrode and the upper surface of the first electrode does not occur, so that when the female plug and the male plug are plugged, damage caused by friction between the lower surface of the second electrode and the upper surface of the first electrode is avoided, and it is guaranteed that the lower surface of the second electrode and the upper surface of the first electrode can be connected after complete plugging. And thus, high-speed transmission of signals is realized.

The utility model provides a kind of coal chute anti-blocking device, including into coal pipe and the two coal chutes of being connected in the bottom of into coal pipe;The opposite surface of two coal chutes is equipped with shell, and the inside of shell is communicated with coal chute, and the inside of shell is equipped with baffle by telescopic mechanism;The opposite surface of two coal chutes is equipped with electric push rod by moving mechanism;Wherein, telescopic mechanism includes the hydraulic cylinder of being installed in the outer surface of shell, and the end of hydraulic cylinder telescopic end is connected with baffle, and the outer surface of baffle is connected with multiple guide columns. Baffle is moved to the direction of shell by telescopic mechanism, to make the coal chute that originally blocks additional space, so that the coal that blocks easily automatically falls, and cooperate moving mechanism to drive electric push rod to knock the different positions of coal chute, so that the coal that adheres on the inner wall of coal chute can be easily shaken, realize the purpose of fast and efficient clearing, prevent long-time blockage affects production.

The utility model discloses a uniform feeding device for food additives, relates to the technical field of food additives, and aims to solve the problem of non-uniform mixing caused by the fact that the conventional mixing device provided by the background technology cannot uniformly discharge the food additives. Comprising a material collecting bin, a stirring bin shell and a stirring bin base, the material collecting bin is installed at the upper end of the stirring bin shell, the stirring bin base is fixed to the lower end of the stirring bin shell, an output rotating motor is arranged on one side of the stirring bin shell, and the output shaft end of the output rotating motor is connected with an output rotating gear; an output pipeline is rotationally connected to the center of the bottom of the stirring bin base through a bearing, a pipeline rotating gear is arranged at the upper end of the exterior of the output pipeline, the output rotating gear is in transmission connection with the pipeline rotating gear through a bottom transmission belt, a spraying opening is connected to the lower end of the output pipeline, and an internal thread part is arranged in the output pipeline in a threaded mode.

The utility model provides a mechanical arm performance detection system, which comprises a plurality of sampling sensors and a master control end, the sampling sensors are used for acquiring operating parameters of rod walls on a mechanical arm, the master control end is used for receiving and displaying the operating parameters, the sampling sensors are wirelessly connected with the master control end through a first wireless circuit, and each sampling sensor is in one-to-one correspondence with the rod walls of the mechanical arm; the master control end comprises a master control chip, the master control chip is connected with a storage module, a display module and a plurality of second wireless circuits, and the second wireless circuits correspond to the first wireless circuits one by one. According to the utility model, the operation parameters of each rod wall on the mechanical arm can be independently acquired and wirelessly transmitted, and the accuracy of acquired data is prevented from being influenced by a power supply wire and a signal wire.

This invention discloses an exposure method and apparatus for a holographic two-dimensional grating, as well as a method for calculating the exposure beam, relating to the field of holographic two-dimensional grating technology. The method for calculating the exposure beam includes determining the wave vectors k1 and k2 of the exposure beam of the three-dimensional grating vector KG1 and the wave vectors k1 and k3 of the exposure beam of the three-dimensional grating vector KG2 based on the three-dimensional grating vector KG1 and the three-dimensional grating vector KG2. Wave vector k1 is the wave vector of the common exposure beam of the three-dimensional grating vectors KG1 and KG2. An inclined vector is introduced and a vector triangle is constructed for rotation and iterative calculation, thereby realizing the single exposure of three beams of a holographic two-dimensional grating with two three-dimensional grating vectors. The exposure method and apparatus are set according to the parameters of the exposure beam obtained by the calculation method, solving the problem that the fabrication of a holographic two-dimensional grating requires multiple exposures with two beams, which is difficult to operate.

The utility model relates to the technical field of dairy product processing, and discloses a blending tank with a premixing structure, which comprises a base, a blending tank main body is fixedly arranged above the base, and connecting pipes are fixedly arranged at the left end and the right end of the blending tank main body. A feeding hole is formed in the center of the upper surface of the blending tank main body, and a premixing mechanism is arranged above the blending tank main body. According to the blending tank with the premixing structure, milk powder is added into a storage box through a powder feeding hopper and then enters a fixed box through an inclined plate and a powder inlet, a rotating motor is started, an auger is driven to rotate through a rotating chain wheel, and therefore the milk powder entering the fixed box is driven to move towards the middle to enter the blending tank body; warm water is added into the fixing box through the water inlet hopper, the warm water and the milk powder can be slowly added into the blending tank body together to be stirred and mixed, and the situation that the mixing effect is affected by powder blocks caused by one-time adding is avoided.

The utility model discloses a diffraction optical waveguide and a near-to-eye display device, and the diffraction optical waveguide comprises a waveguide substrate, the surface of which is provided with a light coupling function region; the light coupling function area at least comprises a coupling-in area and a coupling-out area; an auxiliary structure is arranged in other areas, except the light coupling function area, of the surface of the waveguide substrate, the auxiliary structure comprises a plurality of auxiliary units, and the auxiliary units are used for cancelling reflected light interference formed when ambient light enters the auxiliary structure. According to the technical scheme provided by the invention, unexpected surface reflection generated on the surface of the diffractive optical waveguide can be reduced.

The utility model discloses a test fixture for a coaxial line type camera module, which comprises a camera module plug connecting piece and a module positioning contraction piece, the camera module comprises a module body, a coaxial line and a connector, one end of the coaxial line is connected with the module body, and the other end of the coaxial line is connected with the connector; a socket is arranged on the plug connecting piece, and the connector is inserted into the socket; the module positioning contraction piece comprises a positioning contraction frame and a guide rail, one end of the guide rail is installed on the plug connecting piece, the positioning contraction frame is connected with the guide rail in a sliding mode, a positioning groove is formed in the positioning contraction frame, and the module body is located on the positioning groove. Thus, when testing is not needed, the positioning contraction frame can move along the guide rail in the direction close to the plug connecting piece, so that the testing device is contracted to the minimum size, and occupied space is reduced.

The utility model discloses an automobile temperature sensor with a protection structure, which relates to the field of automobile temperature sensors and comprises a sensor body and a connector arranged at the upper end of the sensor body, fixing plates are fixedly mounted on the left side and the right side of the connector, a protection mechanism is arranged at the upper ends of the fixing plates and is provided with a clamping plate, and the clamping plate is fixedly connected with the connector. And the clamping plates are located on the inner sides of the upper ends of the fixing plates, and fixing bins are fixedly installed on the outer sides of the fixing plates. According to the automobile temperature sensor with the protection structure, when a circuit and a connector are installed, the circuit can be conveniently embedded into the connector through the inclined shape of the upper end of a clamping plate, when a movable block slides, buffering protection is carried out through the elastic force of a buffering spring arranged on the surface of a positioning rod in a sleeving mode, and in cooperation with damping of a damping rod, reciprocating vibration of the buffering spring is avoided; damping protection of the connection position of the circuit and the connector is achieved, abrasion and damage of the circuit are avoided, and the service life of the automobile temperature sensor is prolonged.

The utility model relates to a dynamic amplitude limiting circuit of a power amplifier and the power amplifier, and the circuit comprises a protection circuit which accesses a sound electric signal and transmits the sound electric signal to a signal conditioning circuit; the signal adjusting circuit receives the sound electric signal transmitted by the protection circuit and adjusts the size; the filter circuit filters the sound electric signal and then transmits the sound electric signal to the amplitude limiting circuit and the power amplifier circuit; the amplitude limiting circuit is used for dividing voltage to limit the voltage of the power amplifier; and the power amplifier circuit converts the sound electric signal into a sound signal. The input point voltage of the amplitude limiting circuit is compared with the VDD output voltage and the VSS output voltage, different triodes are driven to drive a thirteenth triode to be conducted, and an optical coupler is driven to change the resistance value of an output resistor of the optical coupler to carry out voltage division so as to reduce an input voltage signal of the power amplifier circuit. Amplitude limiting is carried out through dynamic detection of VDD voltage and VSS voltage, power supply fluctuation is prevented from influencing transmission of electric signals, adverse effects caused by power supply fluctuation are eliminated, and the power amplifier works more stably.

The invention provides a universal serial bus power supply device and a method for detecting abnormal hard reset. The device comprises a bit detector, a packet start period counter, a reset detector and a flag generator. The bit detector receives and detects an input data signal, and outputs a preamble acknowledgement signal having a first level in response to a preamble bit group in the input data signal. The packet start period counter starts counting when the preamble acknowledgement signal has the second level, and outputs a packet start enable signal having the first level. The reset detector receives and determines whether an input data signal has a code related to hard reset to output an abnormal hard reset signal and a K-code acknowledgement signal. The flag generator receives a packet start enable signal, an abnormal hard reset signal, a K-code acknowledgement signal, and a reset enable signal to output an abnormal hard reset flag to the event recorder.