1373results about How to "Reduce thickness" patented technology

The invention provides a back contact battery, a battery assembly and a photovoltaic system. The back contact battery comprises a battery substrate, a plurality of first fine grids and a plurality of second fine grids; the battery substrate comprises a first edge area and a middle area which are sequentially arranged along a first direction; the first fine grids and the second fine grids extend along a second direction, and the second direction is crossed with the first direction; in the middle region, the first fine grids and the second fine grids are alternately arranged along the first direction; in the first edge region, the plurality of first fine grids are sequentially arranged along the first direction; and the second fine grid avoids the first edge region. According to the back contact battery provided by the embodiment of the invention, the second fine grid avoids the first edge region, so that when the back contact battery is applied to the battery assembly, the bus bar can be arranged in the first edge region, the battery assembly does not need to arrange an isolating strip between the bus bar and the back contact battery, and the thickness of the battery assembly can be reduced.

The invention relates to the field of batteries, in particular to a negative plate and a battery comprising the negative plate. The negative plate comprises a negative current collector, a bottom coating and a negative active material layer, the bottom coating and the negative active material layer are positioned on one side or two sides of the negative current collector, the bottom coating is positioned between the negative current collector and the negative active material layer, the bottom coating comprises a three-dimensional structure formed by a first conductive binder, the first conductive binder comprises a first carbon nano tube, and the first carbon nano tube comprises a second carbon nano tube. The negative plate meets the following relational expression: 1.2 < = B / K < = 3.4, B is the length-diameter ratio of the first carbon nanotube, and K is the tensile strength of the negative current collector. According to the negative plate, the thickness of the priming coat can be greatly reduced, and the energy density of the battery is increased; the binding power between the negative electrode current collector and the negative electrode active material layer can be enhanced, the structural stability of the active material layer can be improved, the pole piece deformation and powder falling in pole piece processing and battery circulation can be improved, and the circulation expansion can be inhibited; the conductivity of the pole piece is improved and the fast charging performance of the battery is improved.

The invention belongs to the technical field of welding, and discloses a dissimilar metal power modulation galvanometer laser welding method which comprises the following steps: finely cleaning a 6061 aluminum alloy and a 304 stainless steel plate by using acetone, and then airing for more than 20 minutes; the aluminum steel sheet is assembled, pressed and fixed on a welding test platform in a steel-up-aluminum-down mode; the position of the welding test platform is adjusted, argon serves as welding protection gas, and a protection gas nozzle is arranged to be aligned with a welding pool area; laser welding parameters are set, a laser power modulation mode is set to be a gradient power mode, and the gradient power mode is to regulate and control phase point laser power in a circular scanning track in the advancing direction of a welding seam; a welding test is carried out in the mode that a galvanometer laser head is fixed and a welding test platform is moved, and a laser and the welding test platform are synchronously started and stopped; and the protective gas is started 5 seconds before the laser is started, and after the laser is stopped, the protective gas is stopped lagging for 10 seconds so as to continuously protect the welding seam and prevent oxidation.

The invention discloses a packaging method and structure of an LPCAMM memory module, and relates to the technical field of memory modules. The method comprises the following steps: cutting an original wafer to obtain a plurality of bare chips; obtaining a carrier substrate, and inversely arranging a plurality of bare chips on the carrier substrate to form a recombined wafer; forming a dielectric layer on the surface of the recombined wafer; a transparent filter membrane is attached to the surface of the dielectric layer; exposing and developing the dielectric layer to form a redistribution pattern and a heat dissipation pattern; a rewiring layer is formed at the rewiring pattern through electroplating, and a heat dissipation layer is formed at the heat dissipation pattern through electroplating; cutting the recombined wafer to obtain a plurality of single bare chips after rewiring; obtaining a PCB (Printed Circuit Board), and connecting the bare chip with the PCB to form an LPCAMM memory module; the LPCAMM memory module is connected with the detachable connecting piece, and the detachable connecting piece is detachably connected with the control mainboard. According to the method, the thickness of the LPCAMM memory module can be reduced.

The invention provides an unfavorable geological section treatment structure of an underground high-pressure gas storage and a design method of the unfavorable geological section treatment structure. The treatment structure comprises replacement concrete arranged between a weak structural layer and backfill concrete. The section of the replacement concrete in the radial direction of the gas storage is an isosceles trapezoid, the upper bottom edge of the isosceles trapezoid is connected with the weak structure layer, the lower bottom edge of the isosceles trapezoid is connected with the backfill concrete, the two waist edges of the isosceles trapezoid are connected with the surrounding rocks on the two sides of the replacement concrete respectively, and the length L3 of the upper bottom edge is smaller than the length L1 of the lower bottom edge. The treatment structure can prevent the safety problem of the gas storage caused by the characteristics of low strength, easy deformation and the like of the weak structural layer.

The invention relates to the technical field of lithium cell spot welding, and particularly discloses a spot welding device for lithium cell processing and production, which comprises a workbench, a working frame is fixed on the top of the workbench, a moving frame is arranged on the surface of the working frame, a spot welding head is arranged on the surface of the moving frame, and a cell part is arranged on the top of the workbench. Connecting sheets are uniformly distributed at the top of the battery core piece; the device further comprises a placing assembly and a weight monitoring part, the placing assembly is arranged on the surface of the workbench, the number of the battery cells is judged by monitoring the weight of the battery cells, the purpose of monitoring the number of the battery cells is achieved, the advancing direction and position of the spot welding head are detected in advance through the pressure monitoring part, and monitoring of the spot welding direction of single-row and double-row battery packs is facilitated; manual direction observation and an intelligent numerical control mode are replaced, stability and simplicity are achieved, meanwhile, the spot welding pressure needed by the spot welding head is judged according to the thickness, monitored by the abutting base, of the connecting piece, and current can penetrate through materials to enable the welding portion to reach the needed melting temperature.

The invention discloses foldable electronic equipment. The foldable electronic equipment comprises a hinge mechanism, a shell assembly, a flexible display screen and a flexible transmission piece, the hinge mechanism comprises a base frame assembly, a supporting assembly and a connecting rod component. The flexible display screen at least partially covers the shell assembly and the hinge mechanism. The flexible transmission piece penetrates through the hinge mechanism so that the two ends of the flexible transmission piece can be arranged on the two sides of the base frame assembly respectively. And when the hinge mechanism is in an unfolded state, the at least two groups of supporting assemblies and the at least two groups of connecting rod components are matched with the base frame assembly to form a supporting structure for supporting the flexible display screen. When the hinge mechanism is in a folded state, the other end of the first rotating piece and one end of the second rotating piece are arranged at intervals with the base frame assembly in the thickness direction of the base frame assembly, so that the at least two sets of supporting assemblies, the at least two sets of connecting rod components and the base frame assembly form a containing space, and the flexible display screen is bent in the containing space. The foldable electronic equipment has the advantages of being light and thin.

The invention relates to a semiconductor device and a manufacturing method thereof, and the method comprises the steps: providing a substrate, forming a mask layer on the substrate, and enabling the mask layer to expose an area, where a high-resistance structure needs to be formed, in the substrate; injecting ions into the region by adopting an ion injection process; and removing the mask layer and carrying out an annealing process, forming an insulating buried layer in the region, and forming a crystal layer on the insulating buried layer so as to form a high-resistance structure comprising the insulating buried layer and the crystal layer. The semiconductor device comprises a substrate and a high-resistance structure, and the high-resistance structure comprises an insulating buried layer located in the substrate and a crystallization layer located on the insulating buried layer. According to the invention, the high-resistance structure is formed in the substrate, the resistance uniformity of the high-resistance structure is improved, the thickness of an interlayer dielectric layer formed subsequently is reduced, and the parasitic capacitance and the power consumption of the semiconductor device are reduced.

The utility model relates to a bendable electrochromic device, and belongs to the field of electrochromic devices.The bendable electrochromic device comprises a first transparent base material layer, a first bonding layer fixedly bonded to the lower surface of the first transparent base material layer and a first transparent conductive layer arranged on the lower surface of the first bonding layer, and a reinforcing toughness assembly is arranged on the lower surface of the first transparent conductive layer; the reinforcing toughness assembly comprises a plurality of transverse reinforcing ribs which are fixedly connected to the lower surface of the first transparent conductive layer, and the outer portions of the transverse reinforcing ribs are fixedly connected with a plurality of vertical reinforcing ribs. According to the bendable electrochromic device, the transverse reinforcing ribs and the vertical reinforcing ribs are arranged, so that the toughness of the electrochromic device body during bending is improved, the electrochromic device body is prevented from being broken or damaged in the bending process, and the mechanical durability of the electrochromic device body is good; the performance and the attractiveness of the electrochromic device body are guaranteed, and the advantage of being bendable is achieved.

The utility model provides a mechanical arm based on closed-loop belt transmission, which comprises a driving unit, a big arm unit, a small arm unit and an end effector, a rotating outer shaft and a rotating inner shaft which are coaxially arranged are arranged on the driving unit, a first closed-loop belt wheel mechanism is arranged in the big arm unit, and a second closed-loop belt wheel mechanism is arranged in the small arm unit; wherein the big arm unit is connected with the front joint part of the small arm unit through the transmission end of the first closed-loop belt wheel mechanism, the driving end of the second closed-loop belt wheel mechanism is connected with the rear joint part of the big arm unit, and the end effector is connected with the transmission end of the second closed-loop belt wheel mechanism; a rotating outer shaft of the driving unit is connected with a front joint part of the large arm unit, and a rotating inner shaft of the driving unit is connected with a driving end of the first closed-loop belt wheel mechanism. The thickness of the mechanical arm is reduced, and slipping of the transmission belt is avoided.

The invention particularly relates to a polyethylene / aramid fiber composite fiber asphalt mixture as well as a preparation method and application thereof. The polyethylene / aramid fiber composite fiber asphalt mixture is prepared from the following raw materials in percentage by weight: 5.8 to 6.0 percent of asphalt, 0.05 to 0.1 percent of polyethylene / aramid fiber, 40 to 59 percent of coarse aggregate, 36 to 53 percent of fine aggregate and 5 to 7 percent of mineral powder. The coarse aggregate is pre-mixed in a layered manner, the ultra-high molecular weight polyethylene fiber and the aramid fiber are co-doped into the asphalt mixture, and the ultra-high molecular weight polyethylene fiber is dissolved in hot asphalt, so that the electrostatic phenomenon of the aramid fiber is reduced, and sufficient dispersion space exists among the coarse aggregate; the aramid fibers can be dispersed in the blending process of the ultra-high molecular weight polyethylene fibers, the dispersity of the aramid fibers is improved along with the friction effect among aggregates, and a three-dimensional network stable structure can be formed more easily. The asphalt mixture obtained by adopting the process has relatively high high-temperature stability, fatigue resistance and aging and cracking resistance.

The invention provides a base station antenna, the base station antenna comprises a reflecting plate and a phase shifter, the reflecting plate is provided with a groove, the phase shifter comprises a phase shift circuit, a phase shift medium and a radio frequency ground, the phase shift circuit is covered on an opening of the groove in an insulation manner, the groove wall of the groove forms the radio frequency ground, and the radio frequency ground is arranged in the groove. The phase shift medium comprises a first sliding medium, the first sliding medium is arranged in the groove, and the first sliding medium moves relative to the phase shift circuit to adjust the phase. According to the base station antenna, the phase shifter is integrated on the reflecting plate, and particularly, the phase shifting medium is arranged in the groove in the reflecting plate, so that the size of the antenna is remarkably reduced, the antenna is more compact and light, and the internal space layout of the antenna is optimized.

The utility model provides a light and small laser wind-finding radar device for an aerostat platform, and the device comprises a laser light source which is used for generating a pulse light beam with preset energy and preset frequency; the transmitting-receiving optical system comprises a step-shaped wedge mirror or a holographic optical element, is arranged on an emergent path of the pulse light beam and is used for transmitting the pulse light beam according to a forward conical scanning mode and receiving an echo signal of the pulse light beam; and the laser detector is arranged on an incident path after the echo signal passes through the transceiving optical system, and is used for detecting the echo signal to obtain the frequency shift of the echo signal.

The utility model relates to an integrated building module based on a combined formwork component, and belongs to the technical field of modular buildings. Comprising an integrated building module with a combined formwork vertical component and an integrated building module without a combined formwork vertical component. The integrated building module with the combined formwork vertical components is composed of the combined formwork vertical components, combined formwork beams, a bottom plate, a top plate and partition walls. The integrated building module without the combined formwork vertical component is only composed of a combined formwork beam, a bottom plate, a top plate and a partition wall. The integrated building module can effectively solve the problems that in the existing assembly type technology, an integrated building module is large in dead weight and poor in anti-seismic performance, the wall is large in thickness, the indoor area is occupied, integration, assembly and production are tedious, and cost is high.

The invention discloses a heat-proof and heat-insulating coating, a coating and a preparation method thereof, and relates to the field of heat-proof and heat-insulating coatings. The self-made functional modified light heat-insulating filler, the ceramic forming filler and the photosensitive modified matrix film forming matter are mixed and cured to obtain the heat-proof and heat-insulating coating. A coating layer obtained from the prepared coating is based on the functional modified light heat insulation filler, large-size coating forming and uniform forming can be achieved on the basis that the excellent three-dimensional structure and performance are kept, high-strength combination with a base material is achieved, and the temperature resistance and heat insulation performance of the material are improved.

The invention belongs to the technical field of polytetrafluoroethylene microporous membranes, and relates to an Al2O3 / PTFE composite microporous membrane and a preparation method and application thereof.The Al2O3 / PTFE composite microporous membrane is composed of Al2O3 nanoparticles and PTFE resin, the porosity is 65%-95%, the thickness is 3-25 microns, the average pore size is 0.10-1.5 microns, the transverse and longitudinal tensile strength is larger than or equal to 20 MPa, and the water contact angle is smaller than or equal to 90 degrees. According to the invention, the Al2O3 / PTFE composite microporous membrane is endowed with good surface wettability and excellent mechanical property by utilizing self-humidifying and in-situ reinforcement of Al2O3 nanoparticles, and the Al2O3 / PTFE composite microporous membrane is mainly applied to a reinforcing material of a proton membrane. The preparation process is simple, and industrial popularization is easy to realize.

The invention relates to the technical field of shell-and-tube heat exchangers, in particular to a turbulent flow assembly and a heat exchange tube. The invention provides a turbulent flow assembly which comprises first turbulent flow pieces and second turbulent flow pieces, the first turbulent flow pieces and the second turbulent flow pieces extend spirally, the central axes of the first turbulent flow pieces and the central axes of the second turbulent flow pieces are overlapped, and the first turbulent flow pieces and the second turbulent flow pieces are arranged in a staggered mode to form a double-spiral structure. Drainage surfaces are arranged in the extension directions of the first spoiler and the second spoiler and are used for guiding the flow direction of working medium liquid; the first turbulent flow piece and the second turbulent flow piece are provided with flow channels in the axial direction, the flow channels communicate with the drainage face, and the flow channels penetrate through the axial direction of the first turbulent flow piece and the axial direction of the second turbulent flow piece. More vortex structures can be generated to disturb the temperature boundary layer, so that the thickness of the thermal boundary layer is reduced on the whole, and the heat exchange performance is improved.

The utility model provides a negative pressure suction valve and an endoscope, relates to the technical field of endoscopes, and solves the problem that in the prior art, the passing ability of fluid or particulate matter in a suction valve is poor. The endoscope comprises a negative pressure suction valve, wherein the negative pressure suction valve comprises a valve body and a valve core; one end of the valve body in the axial direction is connected with a first pipe connector used for being connected with a suction pipe, and the first pipe connector is arranged at the eccentric position of the valve body. The valve element is coaxially installed on the valve body and can move along the axis of the valve body to open and close the negative pressure suction valve. Under the condition that the first pipe connector arranged at the shaft end of the negative pressure suction valve and the valve element are in an offset relation, the blocking effect of the valve element on fluid or particulate matter sucked by the first pipe connector is smaller, so that the fluid or the particulate matter can bypass one side of the valve element more easily, passing of the particulate matter is particularly facilitated, and the service life of the valve element is prolonged. And therefore, the passing ability of fluid or particulate matters can be improved.

The invention relates to the technical field of flue gas treatment, in particular to an anti-blocking spraying device for SNCR (selective non-catalytic reduction) denitration treatment of waste incineration flue gas, which comprises an incinerator, a smoke exhaust channel is arranged at the upper end of the incinerator, a flow dividing assembly is arranged in the smoke exhaust channel, the flow dividing assembly comprises a spraying mechanism and a rotational flow mechanism, and the spraying mechanism comprises a flow dividing block, a flow dividing hole and a spray head. The flow dividing block is installed in the smoke discharging channel, the multiple flow dividing holes are formed in the upper end of the flow dividing block, the pair of rotating frames are installed in the flow dividing holes, the spraying pipe is rotationally connected into the rotating frames, and the multiple spraying heads are all installed on the spraying pipe; the cyclone mechanism comprises flow guide discs and cyclone blades, the flow guide discs are all installed on the circumferential face of the spraying pipe, and the cyclone blades are installed at the lower ends of the flow guide discs. Flue gas is divided, the size of each flue gas is reduced, after the flue gas passes through a water curtain formed by three layers of reaction liquid, the flue gas can make full contact with the reaction liquid, and therefore the reaction liquid can be fully separated, and the reaction effect is improved. The denitration effect on the flue gas is improved.

The invention relates to the technical field of sewage treatment, in particular to photocatalytic water treatment equipment which comprises a box body, a connecting frame used for bearing an ultraviolet lamp, a plurality of treatment mechanisms used for conducting photocatalytic treatment on sewage and two suction mechanisms, supports are fixedly connected to the two opposite sides of the box body, and the box body is of a structure with an opening in the bottom end; the inner side of the bottom opening of the box body is fixedly sleeved with a glass plate, and the connecting frame is fixedly connected to the bottom end of the box body. According to the sewage treatment device, sewage and hydrogen peroxide are mixed and then injected into a plurality of treatment mechanisms, so that the sewage thickness of the treatment mechanisms is reduced, ultraviolet rays can conveniently penetrate through the sewage to irradiate a catalyst layer, and the influence of long-time flushing of the sewage on the service life of the catalyst layer is reduced by containing the sewage; meanwhile, the treatment mechanism is started, so that sewage in the treatment mechanism is in full contact with the catalyst layer, the photocatalytic efficiency is improved, and the treatment mechanism can intermittently wipe the catalyst layer to remove sediments on the catalyst layer, so that the photocatalytic water treatment efficiency is improved.

The invention relates to the technical field of tactile immersion, and provides a tactile display architecture based on a beam network, the tactile display architecture comprises a beam device, a driving device and a distance limiting device, the beam device comprises a supporting part and an action beam, at least one end of the action beam is slidably connected with the supporting part, and the supporting part is provided with a plurality of first position points; the driving device drives the end part of the action beam to slide; the distance limiting device comprises first pulling ropes and a first winding and unwinding mechanism, and the position, opposite to each first position point, on the action beam corresponds to one first pulling rope so as to limit displacement of the corresponding position on the action beam. Thus, the shape output of the action beam can be accurately controlled through the driving device and the distance limiting device, the distance limiting device is arranged to be in the form of a traction rope, it can be guaranteed that the action beam has large displacement, and the position of the first retracting and releasing mechanism can be conveniently arranged. The action beam serves as a display area, the first folding and unfolding mechanism can be arranged outside the display area, the influence of the distance limiting device on the thickness of the display area is avoided, sufficient force feedback is ensured, and the light and thin design is promoted.

The invention relates to the field of tents, in particular to a car roof tent convenient to close, which comprises a top shell, a middle frame, a base and tent cloth, one side of the middle frame is rotatably connected to the base, the other side of the middle frame is rotatably connected with the top shell, and a supporting assembly is connected between the base and the middle frame or / and between the middle frame and the top shell. A first collision lock device is arranged between the top shell and the middle frame, and a second collision lock device is arranged between the middle frame and the base; locking can be achieved through the first collision lock device by rapidly covering the top shell on the middle frame once, locking can be achieved through the second collision lock device by rapidly covering the middle frame on the base once, and the locking efficiency of the top shell and the middle frame and the locking efficiency of the middle frame and the base are effectively improved; and in the process, fingers of a user are prevented from being pinched, so that the use is safer.

The knitting needle comprises a needle body, one side face, close to the head, of the needle body is provided with a guide groove with an opening in the lower portion, and the groove wall, away from one side of the tail, of the guide groove is obliquely lifted until the groove wall is smoothly connected with the surface of the needle body; the needle rod is provided with a first end and a second end, the first end is connected with the head of the needle body, one side of the needle rod is sunken inwards to form a needle turning groove with an opening in the lower portion, and the needle turning groove is communicated with the guide groove; the needle hook is connected to the second end of the needle rod; the needle latch is connected to the second end of the needle rod in a turnover mode, and one side of the needle latch protrudes towards the side where the groove bottom of the needle turning groove of the knitting needle opposite to the needle latch is located, so that after the needle hook enters the needle turning groove, the needle latch is jacked open by the lower edge of the groove bottom of the needle turning groove of the knitting needle opposite to the needle latch. According to the scheme, the guide groove and the needle turning groove are formed, so that the function of the spring piece is replaced, the thickness of the knitting needles is reduced by eliminating the application of the spring piece, and the arrangement density of the knitting needles in the needle plate assembly is improved.

The bionic wallboard unit comprises a heat preservation layer, a bearing layer, a heat insulation layer and a protection layer, and a plurality of honeycomb cavities are formed in the outer side of the heat preservation layer; the bearing layer is arranged on the outer side of the heat preservation layer, and a plurality of parallel reinforcing protruding ribs are arranged on the outer side of the bearing layer. The heat insulation layer is sprayed on the outer side of the bearing layer and is used for bonding the bearing layer and the protection layer, so that the connection between the heat insulation layer and the bearing layer and the connection between the heat insulation layer and the bearing layer are jointly ensured by the chemical bonding force between the heat insulation layer and the bearing layer and the mechanical occlusal force formed by the reinforcing convex ribs; the protection layer is arranged on the outer side of the heat insulation layer, and a plurality of grooves matched with the reinforcing protruding ribs are formed in the inner side of the protection layer in parallel. Each layer structure of the wallboard unit provided by the embodiment is connected in parallel, the function is independent, and the function failure of the whole wallboard caused by the failure of a single layer structure can be avoided; the partition design of the inner cavity structure and the outer heat insulation coating reduces the heat transfer coefficient of the wallboard, and simultaneously reduces the thickness of the cavity and the thickness of the coating, so that high heat preservation is realized by the thin wallboard.

The invention provides a display panel and a display device, which are used for enabling the display panel to support a peep-proof mode and a sharing mode and can simplify the preparation process of the display panel while ensuring the peep-proof display effect and the sharing display effect of the display panel. In the display panel, a light-emitting unit layer comprises a plurality of first-color light-emitting units, and the plurality of first-color light-emitting units at least comprise first light-emitting units and second light-emitting units; the plurality of light filtering units comprise a plurality of first color light filtering units and second color light filtering units which are different in color, and the first color light filtering units and the first color light emitting units are at least partially overlapped in the direction perpendicular to the plane where the substrate is located; the light shielding layer comprises a first light shielding part, a first opening and a second opening, and the first light shielding part at least comprises a first color light filtering unit and a second color light filtering unit which are arranged in a stacked mode.