41results about How to "Reduced Alignment Difficulty" patented technology

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

This utility model discloses a conical drum device for a horizontal decanter centrifuge, relating to the field of horizontal decanter centrifuge technology. It includes a straight drum body and a conical drum body, with a positioning component between them. The positioning component includes an inner positioning groove fixedly formed on the inner wall of the end of the straight drum body, and an outer positioning groove fixedly formed on the outer ring of the end of the conical drum body. The outer and inner positioning grooves are interlocked. This utility model, through the installation of the positioning component, pre-positions the welding area between the straight and conical drum bodies before welding, thereby ensuring the welding quality. This solves the problem in existing horizontal decanter centrifuges where the conical and straight drum bodies cannot be pre-positioned before welding, leading to easy misalignment during welding and affecting the welding quality.

The utility model relates to fan transmission system technical field, and disclose a kind of assembly impeller, including impeller and main shaft, the detachable connection between the impeller and main shaft, at least two symmetrical distribution's protruding tooth is processed in the main shaft end face;The recess matched with the protruding tooth is opened in the impeller body end face, and torque is transferred by the side surface contact of the protruding tooth and recess;The utility model is matched by protruding tooth and recess, and contact area is big, can effectively disperse torque, reduce local stress concentration;Symmetrical distribution's protruding tooth makes stress more balanced, avoids the local failure caused by structural deviation.

The application relates to a quick dismounting structure and method for a heavy mold, and relates to the technical field of mold manufacturing. The quick dismounting structure comprises a mounting mold frame and a heavy mold arranged on the mounting mold frame. The mounting mold frame comprises a lower mold base for supporting the heavy mold, an upper mold frame, and a wedge block assembly wedged between the heavy mold and the mounting mold frame. The heavy mold is provided with an upper mounting portion and a lower mounting portion. The lower mounting portion is provided with a lower guide surface inclined towards both sides of the heavy mold from top to bottom. The upper mold frame is provided with an upper mounting groove matched with the upper mounting portion for locking. The lower mold base is provided with a lower mounting groove matched with the lower mounting portion for locking and a push assembly slidably arranged on both sides of the lower mounting groove. The push assembly comprises an ejection unit arranged on one side of the lower mounting portion and a push-in unit arranged on the other side. The ends of the ejection unit and the push-in unit are respectively parallel to the corresponding lower guide surfaces. The application can improve the quick dismounting effect of the heavy mold and the mold frame support.

This application relates to the field of sensor technology, providing a force sensor and its fabrication method. The force sensor has a disk-shaped structure, including four irregularly shaped elastic beams connected between an outer support ring and a central support platform, and multiple strain gauges on the main surface of the elastic beams. The main surface is parallel or substantially parallel to the disk surface of the disk-shaped structure. Each of the four elastic beams includes four straight arms. The two ends of the first straight arm are orthogonally connected to the second and third straight arms, respectively, and the middle of the first straight arm is orthogonally connected to the fourth straight arm. The fourth straight arm is located on either side of the second and third straight arms. The outer ends of the fourth straight arm and the second and third straight arms are each connected to the central support platform or the outer support ring. Because the irregularly shaped elastic beams include multiple orthogonal straight arms, the strain gauges can be flexibly arranged in a bridging configuration, making the bridging output sensitive only to specific forces or torques, thus improving the decoupling capability of the sensor structure. Simultaneously, placing the strain gauges only on the main surface reduces the mounting difficulty.

This utility model discloses a three-dimensional wound core low-loss intelligent distribution transformer, relating to the field of distribution transformer technology. It includes a transformer body and a docking base plate. A fixed base is provided on the lower surface of the docking base plate. Multiple heat dissipation components are equidistantly installed on the outer wall of the transformer body. The fixed base is provided with a docking mechanism for convenient docking and fixing of the fixed base and the docking base plate. This utility model, through the docking mechanism, enables precise docking between the fixed base and the docking base plate, significantly reducing the alignment difficulty during transformer body hoisting and installation, effectively improving the convenience of docking between the fixed base and the docking base plate. After the transformer body is rotated to the designated position, the docking base plate can be easily engaged, positioned, and locked, ensuring the structural stability of the transformer body after installation and effectively preventing loosening of connections due to vibration and other factors, thereby further improving the efficiency of transformer body installation.

The utility model relates to experimental consumables, in particular to a perforated plate for zebra fish culture, which comprises a plurality of groups of culture holes, each group of culture holes comprises a plurality of culture holes, adjacent culture holes in the same group are communicated through micropores, the diameters of the micropores are matched with those of eggs of zebra fish, and the diameters of the micropores are matched with those of the eggs of the zebra fish. And when the amount of the culture medium added into the culture holes is a preset volume, the culture medium just enters the micropores. By arranging the micropores, the old culture medium does not need to be sucked away first and then the new culture medium is quantitatively added, only the new culture medium needs to be continuously added on the basis of the old culture medium until the culture medium enters the micropores, at the moment, the volume of the culture medium in the culture holes is close to the preset volume, and the excessive part can be automatically transferred to the communicated adjacent culture holes and does not need to be sucked out manually; and the roes with large direct drop cannot pass through the micropores, so that the operation difficulty of exposing and culturing the roes is reduced by adopting the structure.

The utility model discloses a kind of reinforcing structures between steel structure factory building beam column steel frame, including the inclined brace component being arranged between existing steel column and existing steel frame beam, inclined brace component includes inclined brace rod, and column connecting plate and beam connecting plate being arranged at both ends, column connecting plate connects the existing steel column, and beam connecting plate connects the existing steel frame beam;Existing steel column is provided with column reinforcing plate in the region of connecting the column connecting plate, and existing steel frame beam is provided with beam reinforcing plate in the region of connecting the beam connecting plate;Adjacent the existing steel column between being arranged at factory building side wall is further provided with detachable intercolumnar rigid tie rod, and the setting height of the intercolumnar rigid tie rod is not lower than the height of column connecting plate at the position. Through the above setting, the safety and stability of the roof truss beam can be better ensured, the roof permanent load can be increased, the overall structure is simple, and the original structure does not need to be disassembled or adjusted, so the installation and construction are easy.

The utility model discloses a quartz tube sleeve for assembling a bonding wire annealing tube gas sensor, which comprises a tube body, the fixing pipe is used for being inserted into an annealing pipe opening to achieve sleeving connection of the pipe body and the annealing pipe, the limiting protrusion is used for abutting against the end face of the annealing pipe opening, the mounting base is used for mounting a gas sensor, and the limiting protrusion is arranged on the inner circumferential wall of the pipe body. One end of the limiting protrusion is connected between the fixing pipe and the installation base, the other end of the limiting protrusion is arranged in an inclined mode in the direction where the fixing pipe is located, a connecting table is arranged on the side wall of the installation base, and a containing cavity used for containing the sensor body is formed in the connecting table. The gas concentration monitoring device is simple in structure and convenient and reliable to assemble, facilitates monitoring of gas concentration and has a good use effect.

An adjusting pad and a linear guide system for machine tools, belonging to the technical field of machine tool parts, are disclosed. The adjusting pad includes two elongated, sheet-like pads, each fixedly connected at one end by a connecting part. All pads are spaced apart along the length of the connecting part, with a first clearance groove between adjacent pads. The first clearance groove is open at the end furthest from the connecting part. A second clearance groove is provided on the outer side of each pad near the two ends of the connecting part, also open at the end furthest from the connecting part, and open on the side closest to the end of the connecting part. The first and second clearance grooves together provide clearance for all fastening screws. The sides of the second clearance grooves at both ends open simultaneously, eliminating the need for the outermost sheet, reducing the workpiece machining accuracy requirements, and facilitating the insertion and positioning of the adjusting pad, significantly reducing alignment difficulty.

This invention relates to the field of optical technology and provides a short-to-mid-wave infrared broadband achromatic telescope lens. Along the object-to-image direction, it sequentially includes an aperture stop, a first lens, a second lens, a third lens, a fourth lens, a beam splitter, a compensating plate, and a multi-stage micromirror. Incident light passes through the aperture stop, then sequentially through the first lens, second lens, third lens, fourth lens, beam splitter, and compensating plate, before being received by the multi-stage micromirror. The optical path direction is the direction of the incident beam. The first lens is a zero-power tilted lens, the second lens is a negative-power negative meniscus lens, the third lens is a negative-power negative meniscus lens, and the fourth lens is a positive-power biconvex lens. The beam splitter and compensating plate are both 45° tilted flat plates, and are arranged parallel to each other. The entire lens improves the consistency of illumination between the edge and center fields of view, with the edge relative illumination approaching 1, ensuring the accuracy of the spectral information of the measured image.

The utility model relates to the technical field of automation, in particular to an automatic feeding device. According to the automatic feeding device, the material trays on the feeding frame are jacked to the feeding position through the jacking assembly, the material trays at the feeding position are carried to the limiting mechanism through the carrying mechanism to be centered and positioned, the centered and positioned material trays are transferred to the positioning assembly through the transferring assembly to be positioned and fed, and automatic conveying, positioning and feeding of the material trays are achieved; the working efficiency is high; the limiting mechanism is used for centering and positioning the charging tray, so that the position precision of the subsequent charging tray can be ensured, and the alignment difficulty of the charging tray and the positioning assembly is reduced; and the transferring assembly transfers the centered and positioned trays to the positioning assembly for positioning and feeding, so that the trays with the large length-width ratio are effectively prevented from warping or deforming, the trays are kept flat, and the feeding precision is guaranteed.

This utility model belongs to the technical field of duct reinforcement structure, and discloses a reinforcing support structure for a smoke-proof and exhaust composite duct. It includes a support beam, with a duct fixedly connected to its lower surface. The lower surface of the support beam has a slot with insertion holes. An installation block is installed within the slot. A reinforcing beam is fixedly connected to the lower surface of the installation block, and an installation beam is fixedly connected to the lower surface of the reinforcing beam. The installation beam has a slot with a connecting beam installed within it, and a second bolt is installed on the installation beam. Through the cooperation of the installation beam, slot, connecting beam, and second bolt, the two reinforcing beams are connected by the connecting beam, improving overall stability and transforming the independent reinforcing beams into a continuous load-bearing system. This increases the equivalent section modulus, significantly improving resistance to bending moment, shear, and torque. The integrated rigidity distribution reduces stress concentration at local weak sections, and the overall frame stiffness transmission path is more uniform.

The utility model provides a kind of connecting structure of steel structure node, it is related to building steel structure technical field, comprising: fixed column and positioning structure;The side surface of the fixed column is provided with clamping groove, and the outside of fixed column is equipped with positioning structure, and positioning structure contains following components: connecting concave frame: be equipped in one side of fixed column, the side wall of connecting concave frame is fixedly connected with first insert strip, and first insert strip is inserted in clamping groove, and the both ends of connecting concave frame are fixedly connected with first tab, and first tab is provided with first perforation;By setting positioning structure, it realizes the accurate and fast alignment of beam and column, not only greatly reduces the alignment difficulty of worker, more conveniently worker fastens and installs bolt, avoids bolt from being unable to accurately install due to misplacement, significantly improves construction convenience, simultaneously, in the double restraint mechanism of positioning angle frame and bolt, further improves node shear capacity, effectively enhances the overall stability of steel structure, provides reliable guarantee for building safety.

The utility model belongs to the field of electric power overhaul auxiliary equipment, and particularly relates to auxiliary equipment for installing a current transformer. Comprising a placing platform used for placing a current transformer; the placement platform is located on the horizontal centering mechanism, and a transverse movement module and a longitudinal movement module on the horizontal plane are arranged on the centering mechanism; the lifting mechanism is located below the alignment centering mechanism; the current transformer is placed on the placing platform, and rapid installation can be carried out after connecting holes in the upper side and the lower side of the current transformer and installation holes in an installation plate in a switch cabinet are centered through the lifting mechanism and the horizontal centering mechanism. And the placing platform, the horizontal centering mechanism and the lifting mechanism are carried on the walking mechanism. And the traveling mechanism can complete the required transfer in the mounting process.

This application relates to a display panel, a backplane, and a display device. The display panel includes: a packaging structure and a driving backplane; the packaging structure includes: a first substrate, the first substrate including a first side and an opposing second side; a light-emitting unit disposed on the first side of the first substrate; a contact structure formed on the second side of the first substrate; the contact structure includes a plurality of concentrically arranged annular pins, the plurality of annular pins being connected to a plurality of pins of the light-emitting unit through a plurality of conductive vias in the first substrate; the driving backplane includes: a second substrate, one side of the second substrate having a plurality of first limiting portions; the second substrate having a first through hole in the axial direction of the first limiting portions; and first pad structures disposed within the plurality of first limiting portions and formed on the side of the second substrate near the first limiting portions. Using this display panel can reduce the difficulty of mass transfer of light-emitting chips.

This utility model discloses a switch cover and a micro switch assembly, relating to the field of micro switch technology. The switch cover has a guide structure extending along a first direction, adapted to slide with the micro switch. The switch cover is detachably mounted on the micro switch, and when mounted, it at least partially covers the switch spring of the micro switch. According to this utility model, the switch cover is detachably mounted on the micro switch via the guide structure. Before the micro switch is installed in the equipment, the switch cover is mounted on the micro switch, covering the switch spring to prevent accidental contact or pulling during subsequent operation. After the equipment is assembled, the switch cover is removed, thus preventing damage to the micro switch during assembly and ensuring its normal operation after assembly.

The application relates to the technical field of agricultural planting, and discloses a rotary cultivator with adjustable ploughing depth, which comprises a machine body, a depth adjusting mechanism and a rotary cultivator roller, the rotary cultivator roller is provided with a connecting mechanism and a nut limiter, and the rotary cultivator roller is connected with rotary cultivator blades through the connecting mechanism. The rotary cultivator with adjustable ploughing depth is provided with the connecting mechanism, the rotary cultivator blades are preliminarily positioned through the installation box blade installation groove, the oblique angle design of the blades and the butt joint blocks facilitates automatic avoidance during insertion, the spring of the reset device can push the butt joint blocks to be inserted into the butt joint grooves, simultaneously push the blades to the positioning blocks so that the blades are clamped into the positioning grooves, and the pre-fixing is quickly completed; when fastening, the nut limiter fixes the hexagonal nut through the limiting plate and the trapezoidal limiting block, only the bolt needs to be rotated to be locked; when disassembling, the blades can be released from the limiting after the bolt is loosened, two wrenches are not needed to be used by two persons, the operation process is greatly simplified, the blade replacement time is shortened, and the ploughing operation interruption time is reduced.

The invention relates to the technical field of fabricated buildings, and discloses a large-span arched steel corrugated plate structure hoisting alignment device which comprises a plurality of arc-shaped hoisting plates symmetrically arranged front and back, a corrugated steel plate body is placed on the lower sides of the arc-shaped hoisting plates, and matched magnetic hoisting plates corresponding to the arc-shaped hoisting plates are arranged on the inner wall of the corrugated steel plate body. The front side and the rear side of the outer wall of the corrugated steel plate body are each provided with two sets of embedded hollow bolts. The large-span arched steel corrugated plate structure hoisting alignment device can effectively solve the problems that in the prior art, a traditional hoisting tool is difficult to resist external force interference such as hoisting inertia and wind power, so that the hoisting tool shakes, the position of a corrugated steel plate deviates, point contact enables stress to be concentrated on a hoisting point, the hoisting point is sunken and wrinkled, and the integrity of a component is affected; in the prior art, single hoisting needs repeated operations of multiple hoisting, adjusting and falling, so that the hoisting period is greatly prolonged, and the problems of fatigue of a hoisting tool and abrasion of a steel wire rope in the repeated hoisting process are also caused.

The utility model provides a positioning tool for bearing ring end face treatment. The positioning tool comprises a bearing table, a charging barrel, a positioning assembly and a material pushing plate. A mounting hole is formed in the top face of the bearing table, and a rotatable bearing disc is arranged in the mounting hole. The material barrel is detachably arranged on the top face of the bearing table, and a material pushing channel is formed between the bottom end of the material barrel and the top face of the bearing table. The positioning assembly comprises a mounting strip and a positioning strip, the mounting strip and the charging barrel are located on the two sides of the mounting hole respectively, the positioning strip is adjustably arranged on the side, close to the mounting hole, of the mounting strip, and a rotatable positioning roller is arranged on the positioning strip. The material pushing plate is arranged in the material pushing channel in a sliding mode, a V-shaped notch is formed in the side wall, close to the mounting hole, of the material pushing plate, and a material pushing roller is arranged on the inner side wall of the V-shaped notch. According to the positioning tool for processing the end face of the bearing ring, clamping and positioning of the bearing ring can be rapidly achieved, and therefore the processing efficiency of the end face of the bearing ring can be improved.

The utility model discloses an easy-to-process aluminum alloy logistics tray, which belongs to the technical field of logistics transportation facilities, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a plurality of support plates, the bottoms of the plurality of support plates are all provided with notches, the tops of the plurality of support plates are all fixedly connected with anti-slip strips, and the anti-slip strips are fixedly connected with the bottom of the bottom plate. A plurality of rubber pads are installed between the bottom plate and the supporting plate, and lifting fence mechanisms are arranged at the positions, close to the two sides, in the bottom plate. The lifting fence mechanism is designed, lifting at different heights can be carried out according to the requirements of goods of different types, the fixing rod can be adjusted to the proper height by accurately controlling rotation of the motor, the best protection is provided for the goods, and the safety of the goods is improved. The situation that the goods are damaged or fall off due to the fact that the height of the fixing rod is improper is avoided, and high universality and applicability are achieved.

The application discloses a universal joint ball pair locking mechanism and medical equipment, and relates to the field of medical equipment. The universal joint ball pair locking mechanism comprises a ball joint and a locking assembly. The ball joint comprises an inner ball head and an outer ball body which are hingedly connected with each other. The locking assembly comprises a first engaging member, a second engaging member and an unlocking driving member. The application realizes rigid locking through the engagement of the first engaging member and the second engaging member. The locking design is not affected by factors such as changes in the friction coefficient and wear, and can stably maintain the relative angle of the inner ball head and the outer ball body, thereby avoiding adverse loosening caused by friction failure and improving the stability of the locking strength. The locking assembly has two states of locking and unlocking. When unlocked, the inner ball head and the outer ball body can be universally adjusted, thereby meeting the requirement of flexible equipment to reach a target position and angle. When locked, stable support is provided through rigid engagement, and the use requirements of flexible adjustment and reliable locking are considered, so that the application is well applicable to application occasions of the stability of equipment operation.

This disclosure relates to a method and apparatus for aligning the directions of virtual and real lighting, electronic devices, storage media, and program products. The method includes: acquiring physical light source information, the physical light source signal including the lighting direction vectors of multiple physical light sources; acquiring virtual light source information, the virtual light source information including the lighting direction vector of at least one virtual light source with directionality in a virtual scene displayed on a real screen; determining a target physical light source from the multiple physical light sources that has the same lighting direction as each of the at least one virtual light source, based on the physical light source information and the virtual light source information; and illuminating the target physical light source to align the lighting effect in the virtual scene displayed on the real screen with the lighting effect in the foreground area in front of the real screen. Therefore, the alignment of the light and shadow effects of virtual and real lighting in virtual shooting can be automatically achieved, resulting in better lighting direction alignment more efficiently and reducing the difficulty of virtual lighting direction alignment.

The invention provides a base station, cleaning equipment and a cleaning system, the base station is used for the cleaning system, the cleaning system comprises the base station and the cleaning equipment, the base station comprises a body and a pickup assembly, the body is provided with a containing bin, and the containing bin is used for containing the cleaning equipment; and the pickup assembly is arranged above the accommodating bin, is movably arranged relative to the body, and is used for picking up a first battery pack of the cleaning equipment so as to carry out battery replacement on the cleaning equipment. According to the invention, the alignment difficulty of the cleaning equipment during battery replacement can be reduced, so that the alignment requirement of battery replacement operation on the cleaning equipment can be reduced.

The utility model relates to a kind of encapsulation devices with liquid cooling heat dissipation function.The encapsulation devices with liquid cooling heat dissipation function include: substrate, including the front and back of opposite distribution;Chip, mount on the front of substrate, chip includes the first surface towards substrate and the second surface opposite with first surface;Liquid cooling heat dissipation structure, including upper cover, lower support and the heat dissipation channel for transmission cooling liquid, upper cover is located above chip, upper cover includes the lower surface towards substrate and the upper surface opposite with lower surface, lower support mounts on the side of chip and is connected with the lower surface of upper cover, upper cover and chip form heat dissipation channel, upper cover also includes liquid inlet and liquid outlet, which are communicated with heat dissipation channel, and liquid inlet is located on the upper surface of upper cover.The utility model enhances the heat dissipation performance of chip, and simplifies manufacturing process.

This invention relates to the field of automotive body-in-white technology, specifically to a connection structure between a rear floor crossbeam and a rear wheel hump, and an automobile. The structure includes a rear floor and a rear wheel hump located on the outer side of the rear floor. A rear floor crossbeam is provided on the rear floor, and one end of a connector is connected to the rear floor crossbeam. The connector includes a connector body with a first groove, the surface of which is flush with the connector body. The rear wheel hump has a first boss that mates with the first groove, and the surface of the first boss near the first groove is welded to the surface of the first groove near the first boss. This invention uses the first groove of the connector as a reinforcing member, further connecting it to the first boss of the rear wheel hump, optimizing the connection relationship, reducing production costs, simplifying assembly, and improving production efficiency.

The utility model belongs to the field of splicing toys, and disclose a kind of splicing toy convenient to assemble, including bottom plate and the splicing structure assembled in the outside of bottom plate, the left side of bottom plate is equipped with handle structure, the splicing structure includes the rectangular groove of the rectangular array distribution of screw rod being opened in bottom plate top and the two insertion slots in rectangular groove middle part, by the design of splicing structure and handle structure, it is realized that quick assembly and disassembly, two side plates can rotate after rectangular block passes through rectangular groove, so that rectangular block and bottom plate bottom abut, ensure the stable fixing position of side plate, baffle is inserted in the sliding slot in the inner wall of side plate to realize stable installation, and the installation process of pull rod is simple, only need to insert connecting block into connecting groove, then pull two clamping blocks to compress spring, after clamping block releases, the springback force of spring will clamping block firmly fixed in clamping groove, to lock the position of handrail.

The utility model relates to the technical field of curtains, in particular to a T-shaped strip and a windproof curtain. The T-shaped strip comprises an elastic strip and low-friction cloth, the inner side surface of the low-friction cloth is provided with a first adhesive which can be adhered after being heated; the elastic strip is wrapped by the low-friction cloth; the low-friction cloth comprises a cloth main body and a connecting edge extending from the cloth main body; and the connecting edge clamps the splicing edge and is bonded with the splicing edge. The friction force of the low-friction cloth is very small, and the low-friction cloth can easily slide in the sliding groove. During production, the elastic strip is wrapped by the cloth main body, the splicing edge is clamped by the connecting edge extending from the cloth main body, and the cloth main body, the elastic strip and the splicing edge are adhered together under hot pressing in a mold. And the splicing edges on the T-shaped strips are quickly bonded with a windproof curtain, a curtain and the like in an ultrasonic welding manner, so that the working efficiency is higher. And the T-shaped strip is prefabricated and formed firstly, so that the subsequent alignment and splicing of the T-shaped strip and the edges of a windproof curtain, a curtain and the like are facilitated, the alignment difficulty of workers on splicing can be reduced, and the production efficiency is further improved.

The utility model relates to an acousto-optic device, which comprises an acousto-optic medium, and a bottom electrode, a piezoelectric transducer and a surface electrode which are positioned on a first surface of the acousto-optic medium and are sequentially arranged along a first direction deviating from the acousto-optic medium, the surface electrode comprises a working part, a connecting part and a welding part which are sequentially arranged along a second direction parallel to the first surface; the working part has a preset size, and the welding part extends to the first surface along the direction towards the acousto-optic medium; the bottom electrode comprises a groove with an opening opposite to the welding part; the orthographic projection of the working part on the top surface of the piezoelectric transducer is located in the top surface of the piezoelectric transducer right above the bottom electrode, and the orthographic projection of the connecting part on the top surface of the piezoelectric transducer is located in the top surface of the piezoelectric transducer right above the groove. By controlling the size and the relative position of the surface electrode and the bottom electrode, a welding area and a working area are distinguished, the problem that welding is not firm due to the fact that the width of the surface electrode is too narrow is solved, and the contradiction between diffraction efficiency and driving power under the condition is solved.

This application relates to the field of photovoltaic device manufacturing and testing technology, specifically disclosing a rapid testing method for the contact resistance of solar cells based on TLM (Transmission Line Model). To address the problem of large fluctuations and numerous outliers in data measured by domestically produced equipment, the method includes: S1, Sample Preparation: Using a dicing machine, the main grids of the solar cell are removed, leaving the fine grids, to prepare strip-shaped test samples, which are then fixed on a testing platform; S2, Probe Matching and Testing: Based on the fine grid spacing of the strip-shaped test samples, a matching probe model is selected, and multiple fixed strip-shaped test samples are subjected to transmission line model testing to obtain contact resistance and resistivity data; S3, Outlier Data Processing: The dataset obtained in S2 undergoes two-level filtering: significantly large outlier data is deleted; the remaining data is sorted and a trend chart is plotted, deleting step-like jump points that deviate from the overall gradual upward trend. This application effectively solves the core pain point of large data fluctuations and numerous outliers in domestically produced equipment.