83results about How to "Reduce shading area" patented technology

The utility model relates to the technical field of medical instruments, in particular to a plasma operation electrode tool bit which aims at solving the problem that a plasma operation electrode suction channel in the prior art is prone to being blocked and comprises an insulating base, and the insulating base is provided with an end face and a suction channel penetrating through the end face. The first electrode wires are provided with sinking sections, and the sinking sections are located in the suction channel. According to the scheme, the first electrode wire sinking section is creatively arranged at the inlet, and after the first electrode wire is powered on, tissue at the inlet of the suction channel is cut again under the action of an electric field. Compared with the traditional technical thought that the shielding area of the suction channel is reduced as much as possible, the scheme creatively performs secondary cutting on the blocked tissue by means of the electric field effect, blockage at the inlet of the suction channel is effectively reduced, and normal operation is guaranteed.

The invention discloses a solar cell, and belongs to the field of photovoltaic technology. The solar cell includes: a substrate; the thin grid lines are located on the light receiving side of the substrate, the thin grid lines are distributed at intervals in the first direction and extend in the second direction, the thin grid lines comprise at least one first thin grid line, each first thin grid line is provided with at least one fracture, and the first direction is perpendicular to the second direction; the multiple connecting lines are located on the light receiving side of the substrate, the multiple connecting lines are distributed at intervals in the second direction and extend in the first direction, each thin grid line is connected with at least two connecting lines, the first thin grid line is connected with the connecting lines at at least one end of the fracture, and the second thin grid line is connected with the second thin grid line at least one end of the fracture. And the plurality of fine grid lines and the plurality of connecting lines form a local loop. The cost can be reduced, and the photoelectric conversion efficiency of the solar cell can be improved.

The invention relates to low-temperature conductive silver copper paste and a preparation method and application thereof in the technical field of solar heterojunction cells. The low-temperature conductive silver copper paste comprises the following components in parts by weight: 1-96 parts of silver powder; 1-96 parts of silver coated copper powder; 0.1 to 5 parts of resin; 0.1-5 parts of a curing agent; 1-10 parts of an organic solvent; wherein the resin comprises epoxy resin and acrylic resin, and the mass ratio of the epoxy resin to the acrylic resin is 1: (0.1-1.6). According to the low-temperature conductive silver-copper paste provided by the invention, through reasonable matching of the resin, the surface wettability of powder particles can be effectively improved, the wettability of the paste is improved, the long-term printability is guaranteed, the printability is enhanced, meanwhile, the double-sided rate is excellent, the reliability is excellent, the aspect ratio is excellent, the photoelectric conversion efficiency is excellent, and the overall performance is excellent through production line verification. And meanwhile, the preparation method of the low-temperature conductive silver-copper paste is simple to operate, free of special requirements on equipment, easy to industrialize and wide in application prospect.

The embodiment of the invention provides a photovoltaic cell piece, a preparation method of a grid line of the photovoltaic cell piece and a photovoltaic module, the photovoltaic cell piece comprises a silicon wafer, the silicon wafer comprises a light facing surface and a backlight surface which are oppositely arranged along the thickness direction of the photovoltaic cell piece, and at least one of the light facing surface and the backlight surface is provided with the grid line; the grid line comprises a first surface and a second surface which are oppositely arranged along the thickness direction of the photovoltaic cell, and the first surface is fixedly connected with the silicon wafer; the width of the first surface is smaller than that of the second surface along the width direction of the grid line, so that the shading area of the grid line on the silicon wafer can be reduced, the filling factor, open-circuit voltage and short-circuit current of the photovoltaic cell can be improved, the metal recombination on the surface of the silicon wafer can be reduced, and the photoelectric conversion efficiency and the output power of the photovoltaic cell can be improved; and the performance of the photovoltaic cell is improved.

The invention discloses high-performance silver paste added with nano silver oxide and a preparation method of the high-performance silver paste. The high-performance silver paste comprises the following components: an organic carrier, glass powder, silver powder and an additive, the organic carrier comprises a volatile solvent and non-volatile resin; the non-volatile resin comprises ethyl cellulose, nitrocellulose, acrylic resin, polyamide wax resin and hydrogenated castor oil; the volatile solvent comprises texanol, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether acetate, tributyl citrate, dimethyl oxalate and dimethyl silicone oil; the additive adopts nano silver oxide. The invention relates to the technical field of solar cells. Compared with silver powder, the nano silver oxide is smaller in particle size, large in specific surface area and low in tap density, the viscosity can be improved when the nano silver oxide is added into the paste, the height-width ratio of a printing grid line electrode can be improved, the shading area can be reduced, the current of a battery piece can be improved, and the photoelectric conversion efficiency of the battery piece can be improved.

The utility model discloses a mould manufacturing welding fixture which comprises a fixture table with four supporting legs at the bottom and further comprises a clamping mechanism arranged on the fixture table and used for clamping a mould, the clamping mechanism comprises four skewed slots which are arranged on one side, far away from the supporting legs, of the fixture table, and every two skewed slots are symmetrically arranged. And sliding frames are connected to the four inclined grooves in a sliding mode, the four sliding frames are connected with sliding plates through limiting mechanisms, and the opposite sides of the four sliding plates are connected with L-shaped clamping plates through fixing plates. Through the arrangement of the clamping mechanism, under the driving action of the driving mechanism, the four L-shaped clamping plates are driven to abut against the corners of the mold, and under the abutting action of the four L-shaped clamping plates, clamping and limiting of the mold are achieved, so that the blocking area of the side wall of the mold is reduced while the convenience of clamping operation of the mold is guaranteed, and the mold clamping efficiency is improved. And therefore, the welding operation on the die is further ensured.

The utility model relates to a solar cell printing structure and a solar cell, the solar cell comprises a substrate and a main grid layer and an auxiliary grid layer which are arranged on the substrate, the printing structure comprises a plurality of alignment structures, each alignment structure comprises a first alignment point and a second alignment point, the first alignment point and the second alignment point are arranged on a target layer, and the first alignment point and the second alignment point are arranged on the target layer. The target layer comprises a main gate layer or an auxiliary gate layer; wherein the orthographic projection pattern position, on the substrate, of the second alignment point in the same alignment structure corresponds to the orthographic projection pattern position, on the substrate, of the first alignment point, the first alignment point is used for identifying the printing position of the main gate layer, and the second alignment point is used for identifying the printing position of the auxiliary gate layer. The alignment structure is arranged on the main grid layer or the auxiliary grid layer, so that the shading area of the alignment structure can be reduced, the optical absorption of the solar cell is improved, the conductivity of the grid layer is further enhanced, the utilization rate of metal slurry can be improved while the consumption of the metal slurry is reduced, and the overall working efficiency is improved.

The invention belongs to the technical field of vacuum coating, and discloses a vacuum coating clamp which comprises four clamping mechanisms, each clamping mechanism comprises a clamping plate, an elastic cushion is fixedly connected to the clamping plate, a first rack is fixedly connected to the side, away from the elastic cushion, of the clamping plate, and a second rack is fixedly connected to the side, away from the elastic cushion, of the clamping plate. The side, away from the elastic cushion, of the clamping plate is fixedly connected with a sliding rod and a first spring, and the bottom of the first rack is meshed with a gear. Through cooperation of structures such as a first rack and a gear, a workpiece can be conveniently supported, after a clamping shell drives an elastic cushion on a clamping plate to abut against the side face of the workpiece, the clamping shell continues to move, the side face of the workpiece can extrude the clamping plate at the moment, the clamping plate drives the first rack to move in the direction close to the clamping shell, and therefore the clamping plate is clamped. The first rack moves to drive the gear meshed with the first rack to rotate, and the gear rotates to drive the supporting plate to rotate in the direction close to the clamping plate.

The invention provides a solder strip, a photovoltaic module and a photovoltaic system, the solder strip comprises a light receiving section and a backlight section, and the light receiving section is used for being fixed on a light receiving surface of a first battery piece; the backlight section is used for being fixed to the backlight face of the second battery piece and comprises a plurality of sub welding strips. One backlight section corresponds to one light receiving section, and the plurality of sub welding strips in one backlight section are connected to one end of the corresponding light receiving section. In a battery string formed by connecting the solder strips in series, the number of light receiving sections of the battery string is relatively small, front shading of the battery piece can be reduced, the front light incidence rate can be improved, meanwhile, the number of the sub-solder strips on the back face of the battery piece is relatively large, current shared by each sub-solder strip is reduced, the current density is reduced, and therefore resistance loss is reduced, and the service life of the battery piece is prolonged. And the output power of the battery string is improved. Besides, the less the current shared by each sub-welding strip is, the less the generated heat is, the heat accumulation and the working temperature of the battery piece are reduced, and the service life of the battery piece is prolonged.

The embodiment of the utility model discloses a solar cell, a cell assembly and a photovoltaic system. The solar cell comprises a silicon substrate and an electrode arranged on one side of the silicon substrate, and the electrode comprises a seed layer, a first metal layer and a second metal layer which are sequentially stacked in the direction away from the silicon substrate; the width of the first metal layer is larger than that of the seed layer in the width direction of the electrode. According to the embodiment of the utility model, the photoelectric conversion efficiency of the solar cell can be improved.

The present invention provides a display substrate and a display device, which relate to the field of display technology and are for improving the transmittance of OLED display devices. The display substrate comprises: a substrate and a plurality of sub-pixels arranged on the substrate; the sub-pixels comprise: a reset signal line, an initialization signal line and a first transistor, at least a portion of the reset signal line extends along a first direction; at least a portion of the initialization signal line extends along the first direction; the gate of the first transistor is coupled to the reset signal line, the first electrode of the first transistor is coupled to the initialization signal line, and the orthographic projection of at least a portion of the first electrode of the first transistor on the substrate is located between the orthographic projection of the reset signal line on the substrate and the orthographic projection of the initialization signal line on the substrate. The display substrate provided by the present invention is used for display.

The utility model relates to the technical field of solar cells, in particular to a solar cell and a photovoltaic module. The solar cell comprises a silicon substrate, a first dielectric layer, a doped silicon carbide layer, a patterned first doped polycrystalline silicon layer and a first electrode. The first dielectric layer covers the light receiving surface of the silicon substrate. And the doped silicon carbide layer covers one surface, deviating from the silicon substrate, of the first dielectric layer. And the first doped polycrystalline silicon layer is arranged on one surface, deviating from the silicon substrate, of the doped silicon carbide layer. The first electrode is arranged on one surface, deviating from the silicon substrate, of the first doped polycrystalline silicon layer, the first electrode is in ohmic contact with the first doped polycrystalline silicon layer, and a graphical region of the first doped polycrystalline silicon layer corresponds to a setting region of the first electrode. The light-receiving surface of the solar cell has lower recombination degree and less optical parasitic absorption, and also has better passivation effect and lower transverse resistance, so that the performance of the solar cell is improved.

The invention relates to a battery cell tray and a detection device. The battery cell tray comprises a tray body and at least one battery cell station module, the at least one battery cell station module is installed on the tray body, each battery cell station module comprises a plurality of carrier rollers which are distributed at intervals, every two adjacent carrier rollers jointly form a battery cell station used for clamping a to-be-detected battery cell, every two adjacent carrier rollers can rotate in the same rotating direction, and the battery cell station is used for clamping the to-be-detected battery cell. And the to-be-detected battery cell is driven to rotate. According to the battery cell tray provided by the embodiment of the invention, the two adjacent carrier rollers rotate in the same rotating direction so as to drive the borne to-be-detected battery cell to rotate and perform all-directional detection on the to-be-detected battery cell. The battery cell station is composed of the two carrier rollers, so that the shielding area of the battery cell station on the battery cell to be detected can be reduced, and the quality of a shot image is improved so as to help quality inspection personnel to screen qualified battery cells. In addition, the battery cell tray can load a plurality of battery cells to be detected at the same time, and all the loaded battery cells to be detected can be detected at the same time, so that the loading capacity of the battery cell tray is enhanced.

The application is suitable for the technical field of back contact battery, and provides a back contact battery, a battery assembly and a photovoltaic system. In the back contact battery, a first test part and a second test part for contacting probes of different polarities of a testing device are arranged on a silicon substrate. The first test part is in communication with at least part of the second fine grid through a first bus grid line, and the second test part is in communication with at least part of the first fine grid through a second bus grid line. The area of at least one first test part is smaller than the area of a first pad, and the area of at least one second test part is also smaller than the area of the first pad. Thus, due to the arrangement of the first test part and the second test part, the positive and negative probes of the testing device can form stable contact with the first test part and the second test part, respectively.

The invention discloses a vehicle and a method for controlling the vehicle, and relates to the technical field of automobiles. One specific implementation mode of the vehicle comprises the steps that an eyeball tracking camera obtains the current sight line of a driver and sends the current sight line; the vehicle camera is mounted on the outer side of the vehicle A column and is used for collecting and sending an external image of a visual blind area of the vehicle A column; the electronic control unit recognizes an obstacle based on the external image, and sends a folding instruction to the control motor of the vehicle A column when it is predicted that the future sight of the driver is shielded by the vehicle A column according to the current sight; and the control motor responds to the folding instruction and controls the multiple connecting rod structures to be folded in the width direction of the vehicle A column, so that an unshielded light path is formed between the future sight line of a driver and an obstacle. According to the embodiment, the shielding area of the sight of a driver can be reduced by adjusting the width of the vehicle A column.

The invention relates to a junction box system based on a perovskite photovoltaic module and a photovoltaic system. The junction box system comprises a first junction box which is provided with a first connecting end, a second connecting end, a third connecting end and a fourth connecting end, the first connecting end is connected with a positive electrode of a first preset battery string in the perovskite photovoltaic module, and the second connecting end is connected with a negative electrode of the first preset battery string; the first junction box comprises a first bypass module and a voltage conversion module, the positive electrode of the first bypass module and the negative electrode output end of the voltage conversion module are connected with the third connecting end, and the negative electrode of the first bypass module and the positive electrode output end of the voltage conversion module are connected with the fourth connecting end; the anode input end of the voltage conversion module is connected with the first connecting end, and the cathode input end of the voltage conversion module is connected with the second connecting end; the voltage conversion module is used for converting an output signal of the first preset battery string to obtain a target signal, and the third connection end and the fourth connection end lead out the target signal. The wiring system is simplified.

The present disclosure relates to the field of photovoltaics, and provides a photovoltaic module which can at least improve the connection reliability of the cell and the solder strip, improve the performance of the photovoltaic module, and save the preparation cost of the photovoltaic module. The photovoltaic module comprises a plurality of cell strings, each cell string comprising a plurality of cell pieces arranged along a first direction and a solder strip electrically connecting adjacent cell pieces, each cell piece having a first busbar extending along a second direction, the solder strip being electrically connected to the first busbar, and the plurality of cell pieces comprising a first cell piece and a second cell piece adjacent to each other, the second cell piece being overlapped on the first cell piece. The photovoltaic module further comprises a buffer piece located on the overlapping area of the first cell piece and the second cell piece, and at least part of the buffer piece is located between the first cell piece and the solder strip; wherein, on the first cell piece, the first busbar close to the buffer piece comprises a first part and a second part in electrical contact with the solder strip, and in the first direction, the width of the second part is greater than the width of the first busbar away from the buffer piece.

The present invention provides a solar cell and a solar cell module. The solar cell comprises a silicon wafer and an electrode arranged on the silicon wafer. The electrode comprises a fine grid line arranged on the front of the silicon wafer. The fine grid line is arranged in a polygonal grid shape and is evenly distributed on the front of the silicon wafer. The electrode also comprises at least two front main grids arranged on the front of the silicon wafer and connected to the fine grid line, and a single front main grid is composed of a plurality of point-shaped welding electrodes. The solar cell and the solar cell module of the present invention can not only ensure power output, but also have low cost.

The utility model provides a supporting structure for a phase shifter, which is arranged between a reflecting plate and the phase shifter and comprises a base, a first side arm, a second side arm and a cover plate, the base is in buckling connection with the reflecting plate; the surface of the first side arm protrudes at intervals to form first wire clamping grooves. The surface of the second side arm protrudes at intervals to form second wire clamping grooves. The cover plate comprises a first part and a second part which are vertically connected, after the phase shifter enters the limiting groove, the second part is fixedly connected with the surface of the first side arm, and the wide surface of the first part abuts against the phase shifter, so that the phase shifter is limited in the limiting groove. According to the utility model, through the arrangement of the novel supporting structure, the phase shifter can be installed under the condition that a narrow surface is vertical to the reflecting plate through the action of the first wire clamping groove and the second wire clamping groove on the side surface in the installation process, so that the length of the branch feeder after installation is shortened; and the shielding area of the phase shifter on the back surface of the antenna is reduced.

The utility model provides a kind of high-resolution and light efficiency optimization type display array substrate, by optimizing metal layer wiring, i.e., gate signal line is arranged in third metal layer and is vertically overlapped with TFT gate, reduces light shielding area;Touch signal line is moved to first metal layer, improves touch signal-to-noise ratio, and data signal line is additionally provided in first metal layer, and the data signal line of second metal layer is equipotential, forms double-layer data line driving structure design, without increasing metal layer thickness, metal line width, metal material and the like, data line impedance can be reduced to original half substantially, effectively improves IC driving capability, can support 8K resolution driving at most, breaks through the problem that S-IC driving capability is insufficient due to data line load improvement under high-resolution panel dual Gate driving design.

The utility model relates to the technical field of filtering equipment, in particular to a filter element framework and a filter element, which comprise a frame body in a spiral structure, the section of the frame body is in an S-shaped structure, and the section of the frame body comprises a first fixing part, a first bending part, a second fixing part, a second bending part and a third fixing part which are connected in sequence, and the first fixing part, the second fixing part and the third fixing part are arranged in parallel. According to the utility model, the spiral frame body and the spiral filter membrane jointly form the tube body of the tubular filter element, so that the load can be uniformly distributed, the stress concentration degree of the structure is reduced, and the structural strength and the bearing capacity of the formed tubular filter element are effectively improved; besides, as the tube wall of the tubular filter element is composed of the filter membrane and the frame body simultaneously, compared with a built-in support body, the thickness of the tube wall in the radial direction of the tube body of the tubular filter element is effectively reduced, the consumption ratio of the support body is effectively reduced, and the production cost is further reduced.

The invention relates to the field of photovoltaic module manufacturing, in particular to an insulating glue printing screen plate for a back contact solar cell and a using method thereof.The insulating glue printing screen plate comprises a plurality of discontinuous insulating glue printing units distributed in the extending direction of a main grid, and interval areas without printing patterns are arranged between every two adjacent insulating glue printing units; forming a sectional insulating glue layer on the surface of the battery piece in the silk-screen printing process; wherein the insulating glue printing unit corresponds to an electrical isolation area on the battery piece. The solar cell can reduce the using amount of insulation paste, reduce the warping problem of the cell, reduce the back shading area, improve the double-sided rate, gain back power generation and reduce the cost.

The utility model relates to the technical field of positioning devices, in particular to a positioning device for surface layer machining. According to the technical scheme, the device comprises a bottom table, and lifting electric push rods which are symmetrically arranged are fixedly mounted at the top of the bottom table; and the left-right positioning assembly comprises a lifting block, a screw rod, a second electric push rod and a left-right positioning clamping block, the two ends of the screw rod are rotationally connected with the positioning frame, the rod body of the screw rod is in threaded connection with the lifting block, the second electric push rod is fixedly installed on the side portion of the lifting block, and the left-right positioning clamping block is fixedly installed on the end portion of the second electric push rod. The lifting electric push rod stretches out to enable the positioning frame and the foam heat preservation box to be at the same height, the second electric push rod stretches out to enable the left positioning clamping block and the right positioning clamping block to clamp and position the foam heat preservation box, the lifting electric push rod shrinks to move the positioning frame downwards, the screw rotates to enable the lifting block to move upwards, and the foam heat preservation box stretches out of the top of the positioning frame. And the shielding area of the positioning frame on the foam insulation box is reduced.

The application relates to the technical field of batteries, in particular to a battery compartment mechanism and electronic equipment. The battery compartment mechanism comprises a mounting frame, a containing cavity, and an opening in communication with the containing cavity; a battery replacement assembly arranged on the mounting frame; a limiting assembly connected with the mounting frame and the battery replacement assembly respectively; at least part of the structure of the battery replacement assembly drives at least part of the structure of the limiting assembly to shield the opening when moving away from the containing cavity; at least part of the structure of the battery replacement assembly drives the limiting assembly to reduce the shielding area of the opening when moving towards the containing cavity. The battery compartment mechanism provided by the embodiment of the application can link the taking and placing actions of the battery and the unlocking / locking operation of the battery compartment, can automatically realize locking when the battery is pushed in, and can automatically push out the battery when unlocking, so that the operation complexity is reduced, and the replacement efficiency is improved.

The invention relates to the technical field of photovoltaic electronic paste, in particular to solar cell fine grid paste and a preparation method and application thereof. The fine grid slurry comprises the following components: metal powder, glass powder, an organic carrier, a plasticizer and an organic auxiliary agent, the addition amount of the metal powder in the fine grid slurry is 80-95 wt%, the metal powder comprises nano silver powder and micron silver powder, and the weight ratio of the nano silver powder to the micron silver powder is 1: (3-10). The fine grid slurry can be smoothly printed when the opening of a full-opening steel plate is designed to be 10 microns, the problem of poor material spreading caused by the mirror surface of the full-opening steel plate is solved, the viscosity of the fine grid slurry is improved, and meanwhile the ink penetration effect of the fine grid slurry can be effectively reduced.

This invention relates to the field of antenna protection technology, and more particularly to an easy-to-install antenna protective cover. It includes: a base with a rubber pad embedded in its lower part; a protective shell rotatably connected to the base; symmetrically distributed first ventilation openings on the lower part of the protective shell; a guide rod fixed inside the protective shell; and symmetrically distributed first and second baffles slidably connected to the guide rod; a winding frame rotatably connected inside the protective shell; and a winding wheel located below the winding frame. Connecting ropes are provided between the first baffles and the winding frame, and between the second baffle and the winding wheel. This invention, by adjusting the positions of the first and second baffles, allows the gas inside the protective shell to exchange with the outside environment when the external wind speed is low. This allows the flowing gas to carry away the heat generated by the antenna, ensuring the normal operation of the antenna.

The application is suitable for the technical field of solar cells, and provides a solar cell, a battery assembly and a photovoltaic system. The solar cell comprises a silicon substrate including a doped layer, a passivation layer arranged on the silicon substrate and formed with a plurality of through holes, and a fine grid including a conductive structure and a connecting structure. The conductive structure is electrically connected to the doped layer through the through holes, and the connecting structure connects the conductive structures corresponding to two adjacent through holes. The through holes include a first hole, a second hole and a third hole arranged in sequence along a first direction. The conductive structure includes a first conductive part, a second conductive part and a third conductive part arranged correspondingly to the first hole, the second hole and the third hole. The connecting structure includes a first connecting part and a second connecting part. The first connecting part connects the first conductive part and the second conductive part, and the second connecting part connects the second conductive part and the third conductive part. The center line of the first connecting part is spaced from the center line of the second connecting part in a second direction, and the second direction intersects the first direction.

The utility model discloses a sealing air valve structure. According to the scheme, the valve comprises a valve body, a valve blade assembly and an actuator, and is characterized in that a blocking wing in the valve body is vertically arranged on a limiting layer, and the actuator drives the valve blade assembly to rotate under pushing of a transmission assembly. According to the blocking fin, the problem that gaps exist in the side face when the valve blade assembly is completely scattered in the prior art is solved, the air valve structure can be completely sealed in the closed state, and the rotation angle of the valve blade assembly is limited; according to the valve blade assembly provided by the scheme, the multiple layers of valve blades are stacked, the shielding area of each blade is reduced, the ventilation area is increased, meanwhile, the valve blades are tighter, and the sealing performance is higher.