47results about How to "Small surface area" patented technology

The utility model discloses a breathing machine humidifying tank and a breathing machine system, and relates to the field of medical instruments. The breathing machine humidifying tank comprises a tank body, a guide sleeve, a telescopic water bag and an operating rod. The tank main body is provided with a highest water line; the telescopic water bag is located in the tank body and horizontally arranged, the top of the telescopic water bag is higher than the highest water line, the telescopic water bag comprises a telescopic sleeve and a hard end plate, one end of the telescopic sleeve is connected with the tank body, the hard end plate is connected with the other end of the telescopic sleeve, and a water suction and drainage hole is formed in the hard end plate and lower than the highest water line. The guide sleeve and the telescopic water bag are arranged in the same direction, and the guide sleeve is connected with the tank body and corresponds to the telescopic water bag in position. And the operating rod penetrates through the guide sleeve, is matched with the guide sleeve and is sealed with the guide sleeve, and the operating rod is connected with the hard end plate. The breathing machine humidifying tank is installed on the breathing machine main machine, and a temperature and humidity sensor and a push-pull structure are arranged in a matched mode to obtain the breathing machine system. According to the utility model, the temperature and humidity of the humidified air at the patient end can be optimal.

The invention discloses high-density ultra-thin electronic-grade glass fiber cloth, and relates to the technical field of glass fiber cloth preparation, the high-density ultra-thin electronic-grade glass fiber cloth is formed by weaving warp yarns and weft yarns with the monofilament diameter of 4.0 microns, the warp and weft density is 90-100 pieces / inch, an air jet loom is combined with an auxiliary air jet mechanism for plain weaving, and it is guaranteed that fibers are tightly arranged; the preparation method comprises the steps of low-speed warping, weaving, desizing, deep splitting, cleaning and surface treatment. During weaving, through low-tension control and low-pressure airflow assistance, the fabric structure is more compact and uniform; a three-step method is adopted to gradually eliminate most slurry, and the slurry is further removed through liquefaction desizing; splitting and cleaning adopt a water flow and air flow combined mode, so that fiber opening is ensured, and the slurry residue rate is reduced to the minimum; finally, the strength of the high-density ultrathin electronic-grade glass fiber cloth is improved through treatment of a silane coupling agent; and low-tension and extremely low-slurry-residue-rate weaving of the high-density ultrathin electronic-grade glass fiber cloth is realized.

The embodiment of the invention discloses a brush direct current motor control method and device, equipment and a medium. The brush direct current motor control method comprises the following steps: determining the partial voltage of the brush direct current motor; detecting the real-time current of the brush direct current motor; the induced electromotive force is calculated based on the voltage division law by adopting the divided voltage, the real-time current and the impedance characteristic of the brush direct current motor; calculating the real-time rotating speed of the brush direct current motor by adopting the induced electromotive force based on the law of electromagnetic induction; and under the condition that the real-time rotating speed of the brush direct current motor is smaller than a rotating speed threshold value, determining that the brush direct current motor is in a locked-rotor working condition. According to the method for judging whether the brush direct current motor is locked or not, a Hall sensor does not need to be arranged, a connecting pin used for being connected with the Hall sensor and a corresponding signal processing circuit do not need to be arranged in a circuit board used for data processing, the limited surface area of the circuit board is saved, and the utilization rate of the circuit board is improved.

The invention discloses a feeding device for photovoltaic battery piece production and processing, and relates to the technical field of battery piece production and processing, the feeding device comprises a layering plate, the layering plate is used for placing batch photovoltaic battery pieces to be fed in a layering manner, the outer surface of the layering plate is provided with an outer inclined round hole, the outer surface of the layering plate is provided with a square small hole, and the square small hole is provided with a through hole. According to the feeding equipment for production and processing of the photovoltaic battery pieces, a plurality of layering plates are arranged, so that a plurality of stacked photovoltaic battery pieces are placed in a layered mode for feeding; the problems that the number of fed photovoltaic battery pieces is large, the thickness is small, most of the photovoltaic battery pieces are stacked, and the long-time feeding procedure is difficult to conduct manually are solved, and a plurality of outer inclined round holes are formed in a layering plate so that residual dust and other impurities can gradually fall down to the inner side of a concave bottom plate; and residual sundries falling on the layering plate after the photovoltaic cell pieces are placed for multiple times are prevented from being gradually accumulated to influence the subsequent feeding effect.

The invention relates to the field of hemostasis, in particular to an emergency surgery compression type hemostasis device which comprises a support, a supporting plate is fixedly connected to the top end of the support, a screwing rod is fixedly connected to one end of a first threaded rod, a connecting shaft is slidably connected to the other end of the first threaded rod in an embedded mode, and a hemostasis plate is fixedly connected to the bottom end of the connecting shaft. The bottom end of the hemostasis plate is of an arc-shaped structure, an air bag is fixedly connected to the bottom end of the hemostasis plate, gathering assemblies are symmetrically installed on the side wall of the hemostasis plate, a cold compress assembly is installed on the side wall of the air bag, and a connecting assembly is installed between a first threaded rod and the hemostasis plate. According to the compression hemostasis device, the connecting assembly is arranged, and the first wedge-shaped block and the second wedge-shaped block are matched with each other, so that the moving position distance of the hemostasis plate is consistent, the pressure is consistent, the problem that the pressure is inconsistent during compression hemostasis is avoided, compression hemostasis operation is facilitated, and the practicability of the device is improved.

The present invention discloses a clamping device for abrasive flow machining, comprising a machine body, a clamp is arranged in the middle of the inner cavity of the machine body, the clamp comprises a first clamp, a fixing plate is fixedly connected to the top of the inner cavity of the first clamp, a connecting rod is fixedly connected to the inside of the first clamp, and a slide groove is arranged on the right side of the connecting rod. The present invention is provided with a first clamp, a second clamp, a sleeve, a connecting tube and a control bolt, the control bolt is rotated, the connecting tube is extended and retracted in the sleeve, the distance between the first clamp and the second clamp is adjusted, so as to reduce the surface area of ​​the workpiece exposed, the part to be polished is clamped between the first clamp and the second clamp, and polished, so as to reduce the wear on the intact part and prevent the damage of the workpiece, and the agitator plate stirs the abrasive during operation, so as to make the contact between the abrasive and the workpiece more uniform, make the surface processing of the workpiece more uniform, and improve the processing efficiency at the same time.

A power chip, a driving circuit, a discharging unit and the like are integrated through a PCB, the motor controller is divided into an upper cavity and a lower cavity, the middle of the motor controller is of a water channel structure, the power chip board is placed in the upper cavity in a shell attaching mode, a capacitor and filter assembly is encapsulated in the lower cavity, a cavity is formed in the center of an inverter, and the power chip board is arranged in the cavity. And integration with a motor is facilitated. The form stray parameter of the power integrated board card is lower, stepless power expansion is more convenient to realize, and high performance is further realized; meanwhile, due to high integration, the size and the weight are lower, high power density can be achieved, the whole vehicle carrying performance is improved, the process is complex and the transportation cost is high in the mode that original independent parts are produced in various places and then connected through bolts in an assembly factory, the motor controller and the motor can be produced in one place in a concentrated mode, the production process is simplified, and the material cost is lower. The motor controller and the motor are axially installed, the surface area of the motor controller is reduced, the size is reduced, and whole vehicle carrying is facilitated.

The present disclosure relates to a continuous positive airway pressure, CPAP, system comprising: a flow generator including a blower that supplies breathable gas at pressure; a patient interface; and an air delivery conduit interconnecting the flow generator and the patient interface, the air delivery conduit including a conduit portion having an internal diameter of less than 19 mm.

The invention discloses a method for treating the inner surface of a stainless steel gas pipe assembly for a semiconductor. The method for treating the inner surface of the stainless steel gas pipe assembly for the semiconductor comprises the following steps that firstly, the inner surface of the stainless steel gas pipe assembly is subjected to basic pretreatment, so that the surface roughness of the stainless steel gas pipe assembly reaches the precision capable of being subjected to finish machining; secondly, multi-stage mechanical polishing is carried out through grinding materials with the granularity gradually reduced, so that the roughness of the inner surface of the stainless steel gas pipe assembly reaches the target precision; and thirdly, the inner surface of the stainless steel gas pipe assembly is treated through electrolytic polishing, and a high-precision passive film is generated on the inner surface of the stainless steel gas pipe assembly. In this way, the smoothness and corrosion resistance of the inner surface of the stainless steel gas pipe assembly can be effectively improved, the overall service life of the pipeline is prolonged, the influence of the pipeline on high-purity gas is remarkably reduced, and the strict requirement of the semiconductor tip technology manufacturing procedure for gas purity is met.

The present invention relates to a positive electrode active material for a secondary battery which is a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes the nickel (Ni) in an amount of 65 mol% or more and the manganese (Mn) in an amount of 5 mol% or more based on a total amount of transition metals, and at least one particle growth-promoting element selected from the group consisting of strontium (Sr), zirconium (Zr), magnesium (Mg), yttrium (Y), and aluminum (Al), wherein the electrode positive active material is composed of a single particle.

The present invention relates to a preparation method and application of titanium dioxide coated hollow glass microspheres, belonging to the technical field of hollow glass microspheres. 0.1 to 1 parts by weight of a titanate coupling agent is added to 80 to 90 parts by weight of an organic solvent, stirred for 1 to 3 hours, and a titanium solution is obtained; 10 to 20 parts by weight of hollow glass microspheres are added to the titanium solution prepared by S1, stirred for 1 to 3 hours, and a glass microsphere titanium solution is obtained; the organic solvent in the glass microsphere titanium solution prepared in S2 is evaporated by a low-temperature reduced pressure distillation method, and a freeze dryer or a vacuum oven is used for drying to obtain a pre-coated material; the pre-coated material prepared by S3 is sieved and calcined at 400 to 600°C for 2 to 6 hours, and cooled to obtain a titanium dioxide coated hollow glass microsphere product. The present invention has a simple process, is easy to mass produce, and can ensure coating uniformity and performance stability; in addition, the thermal insulation coating to which the titanium dioxide coated hollow glass microspheres of the present invention are added has significant thermal insulation performance, and good water resistance, stain resistance, and corrosion resistance.

The application belongs to the chip packaging technical field, and particularly relates to a running control method based on a heterogeneous optoelectronic chip, steps of which are as follows: S101, obtaining a task quantity of a to-be-calculated task; and judging whether the task quantity is greater than a set first calculation threshold; when the judgment result of step S101 is yes, then step S102 is executed, that is, a type one photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S101 is no, then step S103 is executed, that is, a recommended calculation time consumption of the to-be-calculated task is obtained, and whether the recommended calculation time consumption of the to-be-calculated task is less than a set time length is judged; when the judgment result of step S103 is yes, then step S104 is executed, that is, a type two photonic chip is recommended for the to-be-calculated task to execute calculation; when the judgment result of step S103 is no, then step S102 is executed. The control method can realize flexible switching and stable high-speed running of the optoelectronic chip in an extreme environment.

The present disclosure relates to the technical field of lithium-ion batteries, in particular to a hard carbon composite material and a preparation method and use thereof. The hard carbon composite material of the present disclosure has a core-shell structure. The core comprises hard carbon doped with nitrogen, and the shell comprises a phosphorus-containing compound. The core accounts for 1 %-10% of the shell by mass. In the present disclosure, the core of the hard carbon composite material is doped with nitrogen to increase the conductivity of the composite material; the shell of the hard carbon composite material is doped with the phosphorus-containing compound to improve the specific capacity and initial efficiency of the composite material by relying on the high specific capacity of phosphorus, and meanwhile, by coating the shell with the phosphorus-containing compound, the specific surface area of the porous structure of the core is reduced and thus the overall specific surface area of the hard carbon composite material is reduced. By combining the core with the shell, the obtained hard carbon composite material has excellent electrochemical properties.

The utility model discloses a kind of anti-falling board auxiliary jig structures for small size PCB production, it is related to auxiliary jig technical field, and it includes: substrate bearing plate, multiple support platforms and multiple drainage open area are equipped on the substrate bearing plate, the end of the support platform is provided with clamping point, the lower side notch of the drainage open area extends to the bottom surface of substrate bearing plate, the upper side four corners of the substrate bearing plate are all installed with support seat, adjusting screw is screwed through in the support seat, the inner end of the adjusting screw is rotatably connected with clamping piece, gauze is laid on the substrate bearing plate, and the four corners of the gauze are connected with four clamping pieces respectively. The utility model is cooperatively designed by gauze and drainage open area, and gauze tension offsets water flow impact force, prevents PCB board displacement, and drainage open area accelerates liquid discharge, compared with traditional single anti-falling board structure, reduces the downtime of cleaning process.

The invention relates to a hybrid voltage limiter. According to the invention, the hybrid voltage limiter (1) comprises a first electrode (14), a second electrode (15), flip-flop electronics (10), a thyristor component and a varistor component, the varistor component comprising a varistor (9) and being connected in parallel with the thyristor component, where the thyristor component is electrically connected to the first electrode (14), the thyristor component forming two thyristors (5) connected antiparallel, the gate of an anti-parallel connected thyristor (5) is connected to the flip-flop electronics (10) in such a way as to be able to receive a trigger signal of the flip-flop electronics (10), where the flip-flop electronics (10) are electrically connected to a first electrode (14) and a second electrode (15), where the thyristor component is electrically connected to the second electrode (15) via a first resistivity. The thyristor component is electrically connected to the second electrode (15) by a bypass (6) having a second electrical resistivity, the first electrical resistivity having a higher resistance value than the second electrical resistivity, and the bypass (6) is connected to the second electrode (15) in a spark gap-avoiding manner, and the varistor component is electrically connected to the first electrode (14) and the second electrode (15).

This invention discloses a multi-axis planar motion platform suitable for vacuum environments, comprising: a vacuum chamber, a mounting top plate, an adjusting column, a motion stage, a support platform, a drive assembly, a secondary guide rail, a primary guide rail, and a primary slider. The vacuum chamber is a sealed cavity, with the mounting top plate positioned at the top inner side of the vacuum chamber. The support platform is a hollow square structure connected to the mounting top plate via the adjusting column. The motion stage and secondary guide rail are both located inside the support platform, while the drive assembly is located outside the support platform. The output end of the drive assembly is connected to the secondary guide rail, which extends horizontally through the inner side of the motion stage. Both ends of the secondary guide rail are connected to the primary slider, which slides on the primary guide rail. The primary guide rail is located at the edge of the support platform. Driven by the drive assembly, the secondary guide rail, primary slider, and primary guide rail cooperate to achieve relative sliding of the motion stage within the support platform along the X-axis or Y-axis. This invention has the advantages of compact structure, simple operation, and high motion accuracy.

The application relates to a power supply circuit, a driving device and a power conversion device. The power supply circuit comprises a first step-down conversion circuit, a secondary winding and a first bootstrap circuit; wherein the input end of the first step-down conversion circuit is used for connecting a direct-current power supply, the direct-current output end of the first step-down conversion circuit is connected with the input end of the first bootstrap circuit; the first bootstrap circuit is used for supplying power to the driving circuit corresponding to the floating ground switch tube in the first bridge arm circuit; the direct-current output end of the first step-down conversion circuit is also used for supplying power to the driving circuit corresponding to the ground switch tube in the first bridge arm circuit; the inductive element in the first step-down conversion circuit serves as the primary winding corresponding to the secondary winding, and the secondary winding is used for supplying power to the driving circuit corresponding to each switch tube in the alternating-current side conversion circuit in the power conversion circuit. The power conversion device with a smaller size can be realized by adopting the power supply circuit.

The utility model discloses a kind of vertical perfusion formworks of arc component, belong to concrete pouring mould technical field, including arc inner mould, arc outer mould, end mould, arc bottom die, travelling mechanism and positioning mechanism;The arc inner mould, arc outer mould, arc bottom die and end mould are matched into mould and are poured;The end mould can be rotatably connected in arc outer mould both sides;The arc bottom die is fixedly connected in arc outer mould bottom;The travelling mechanism is used to drive arc inner mould and arc outer mould into mould and stripping;The positioning mechanism is used for accurate positioning when arc inner mould and arc outer mould into mould.The utility model of a kind of vertical perfusion formworks of arc component, can effectively solve the pouring mould platform of prior art is flat mould production, and the component poured out by it is not good control because of the large area of upper surface, lack of vertical perfusion formwork suitable for arc segment and other problems.

The present invention discloses an IVUS and a catheter thereof, wherein the catheter comprises a sheath and an adapter, the adapter comprises a housing for connecting to a socket of a controller and a rotating part in the housing, the rotating part is driven by the socket and drives the driving shaft in the sheath to rotate, thereby driving the ultrasonic transducer to rotate for signal acquisition. An anti-interference circuit is also provided in the rotating part, and the ultrasonic transducer transmits the collected signal to the anti-interference circuit through a signal line, and the anti-interference circuit transmits the signal to the controller for signal processing. It can be seen that the anti-interference circuit in the present application is arranged inside the catheter, and rotates simultaneously with the rotating part in the catheter. Due to the small diameter of the catheter, the Q value of the material through which the signal is conducted is low, and the surface area is small, so the corresponding parasitic capacitance is small, which greatly reduces the risk of introducing parasitic capacitance into the controller. Relative to the prior art, the technical solution of the present application can significantly improve the isolation effect of interference signals.

The invention discloses a device and method for improving the success rate of casting plugs. The structure of plug casting comprises an upper sand box and a lower sand box. The upper sand box is a riser sand box, and the lower sand box is a product plug sand box. A riser cavity is fixed in the upper sand box, and a pouring port is fixed on the riser cavity. A plug sand core is arranged in the lower sand box, and a plug cavity is arranged around the plug sand core. Molten steel passes through casting channels arranged in the upper sand box and the lower sand box and enters the plug cavity along the plug sand core in the lower sand box. A riser sand core is arranged in the riser cavity, and the diameter of the riser sand core is smaller than that of the riser cavity. One or more riser cavities are arranged along the upper sand box. The riser sand core is cylindrical, and a plurality of through holes are arranged in the cylinder from top to bottom. The riser sand core consists of two parts, an upper part and a lower part, which are integrated. The lower part of the riser sand core is a cylindrical structure, and the upper part of the riser sand core is a semicircular body.

The invention relates to a hair trimming blade and tool bit assembly with Y-shaped teeth. The hair trimming blade and tool bit assembly is characterized by comprising at least one face plate making contact with the skin and side plates arranged on the two sides of the face plate; a plurality of blind grooves are formed in the panel, the opening end of each blind groove is communicated with the exterior of the panel, and the depth of each blind groove is larger than half of the width of the panel; by taking the blind groove as a reference, through grooves are formed in the two sides of the blind groove at intervals, and the two ends of each through groove communicate with the exteriors of the two sides of the panel correspondingly, so that a plurality of cutting teeth which are arranged side by side at intervals are formed in the length direction of the panel; from the front projection of the panel, the cutting tooth is provided with two branch teeth and a supporting tooth which are in a Y shape. The beneficial effects of the invention are that the plurality of blind grooves and the through grooves arranged at the two sides of the blind grooves are arranged, so that the surface utilization rate of the panel is improved, and the wool feeding benefit is improved; meanwhile, the surface area of the solid part of the panel is reduced, the friction resistance between the movable cutter and the panel is reduced, the surface temperature rise of the panel is reduced, and the use comfort of the blade is improved.

The invention discloses an evaporator, and relates to the technical field of evaporators, the evaporator comprises an evaporation bin for heat exchange and a separation bin for gas-liquid separation, an annular filter cartridge and a movable filter cover are arranged in the separation bin, and the interior of the annular filter cartridge is used for circulating a gas-liquid mixture; the movable filter casing is connected to the annular filter cylinder in a sliding manner so as to perform gas-liquid separation on the gas-liquid mixture, and the movable filter casing has a first gas-liquid separation state in which the movable filter casing is collected into the annular filter cylinder to form a large thickness and a small surface area, and a second gas-liquid separation state in which the movable filter casing extends out of the annular filter cylinder to form a small thickness and a large surface area. And an air inlet and a heat exchange pipeline are arranged on the evaporation bin. According to the evaporator provided by the invention, when the device normally operates, the movable filter cover is retracted into the annular filter cylinder to form a first gas-liquid separation state; and when the device operates at high power, the movable filter casing extends out of the annular filter cartridge to form a second gas-liquid separation state.

The invention discloses a method for regulating and controlling pathological heart remodeling of an AAC model mouse by succinic acid, and belongs to the field of heart disease treatment. The method comprises the following steps: selecting 8-week-old male C57BL / 6J mice, dividing the mice into a normal temperature group and a slight cold exposure group, and carrying out adaptive feeding; establishing a heart remodeling model through an AAC operation; performing 1.5% succinic acid aqueous solution and / or 1mg / mL broad-spectrum antibiotic intervention on the mouse for 4 weeks; the method comprises the following steps: collecting heart tissues, detecting heart remodeling related indexes through Masson staining, WGA staining, qPCR, Western blot and other methods, and evaluating an intervention effect. According to the invention, succinic acid is used for intervention in a slightly cold exposure environment, so that AAC model mouse pathological heart remodeling is effectively regulated and controlled, and a new method and thought are provided for research and treatment of heart remodeling diseases.

The present invention discloses a composite proton exchange membrane and its preparation method and application, belonging to the field of new energy fuel cell technology. The method comprises the following steps: 1) preparing a proton conductor composed of iodine niobium oxide HNbO(IO3)4, boron phosphate BPO4 and inorganic oxide MO2; 2) mixing the proton conductor prepared in step 1 with a polymer matrix solution and forming a membrane by a casting method; 3) soaking in phosphoric acid to obtain a phosphoric acid-doped proton exchange membrane. Compared with the prior art, the composite proton exchange membrane prepared by the present invention has a higher proton conductivity at 100-200°C, a stronger phosphoric acid retention capacity, and the battery based on membrane assembly can operate stably at 100-200°C.

The invention discloses a KR desulfurization slag curing method and modified desulfurization slag prepared through the KR desulfurization slag curing method, and belongs to the technical field of high-temperature steel slag treatment.The curing method comprises the steps that before slagging-off, a curing agent is added into a ladle, so that the KR desulfurization slag and the curing agent make full contact / are mixed; wherein the curing agent comprises a Na salt and TiO2; and cooling the KR desulfurization slag mixed with the curing agent to a temperature below the phase transition temperature at which beta-phase dicalcium silicate is converted into gamma-phase dicalcium silicate, so as to realize curing treatment of the KR desulfurization slag and obtain the modified desulfurization slag. According to the method, the curing agent is added into the KR desulfurization slag before slagging-off, so that the pulverization phenomenon of the KR desulfurization slag caused by dicalcium silicate phase change expansion can be effectively solved.

The utility model provides a long-service-life stainless steel uniform-temperature plate which comprises a first stainless steel shell, a second stainless steel shell and a third stainless steel shell. The second stainless steel shell is arranged corresponding to the first stainless steel shell, the second stainless steel shell and the first stainless steel shell are subjected to laser welding, and the second stainless steel shell is subjected to high-temperature passivation treatment; the capillary structure is arranged on the first stainless steel shell, the capillary structure and the first stainless steel shell are subjected to high-temperature passivation treatment together, and the capillary structure is fixedly connected with the first stainless steel shell; and the hydrogen removal material is of a non-coated or non-coating structure, is arranged at the condensation end of the stainless steel shell II, and is titanium-plated palladium. A hydrogen removal material with a non-coated or non-coating structure is placed at the condensation end of the stainless steel temperature-uniforming plate, preferably a filamentous or blocky hydrogen removal material, hydrogen generated by contact of iron atoms and water molecules is absorbed, the vacuum degree in the stainless steel temperature-uniforming plate is improved, and therefore the service life of the stainless steel temperature-uniforming plate is greatly prolonged.

The present invention relates to the field of welding technology, and discloses a semi-automatic quartz boat rapid welding device, comprising a welding platform, first clamps are symmetrically installed on both sides of the welding platform, a second clamp is symmetrically installed in the middle of the welding platform, welding tools are installed on the top of the welding platform in a rectangular and equidistant arrangement, and a centering limit assembly for preventing the distance between the slot rod and the nail side plate from being unequal is symmetrically arranged on the outer side of the second clamp, and the slot rod is pushed to the center position by rotating the double-threaded screw and indirectly driving the centering rod to move, thereby ensuring that the slot rod can be automatically and accurately positioned in the middle of the device before welding, eliminating the position deviation occurring during manual placement; the above-mentioned automatic positioning mechanism not only improves the consistency of welding, but also reduces the phenomenon of empty welding caused by human errors. Secondly, the limiting pulling action of the limiting shell and the telescopic rod can prevent the centering rod from excessively pushing against the slot rod, further ensuring the accuracy and stability of the slot rod positioning.

Provided is a zirconium composite oxide containing 5 mass% to 50 mass% yttrium oxide and cerium oxide, the specific surface area after 10 hours of heating at 1250°C being 3.0 m2 / g to 20.0 m2 / g.

This invention belongs to the field of chip packaging technology and relates to an enhanced non-planar packaging system with heat dissipation function. It includes a substrate, a non-planar reconstruction layer, and at least one photonic chip. The non-planar reconstruction layer is disposed above the substrate and includes: at least one silicon bridge, at least one electronic chip, and molding compound. The silicon bridge is disposed on the side of the electronic chip. The molding compound wraps around the silicon bridge and the electronic chip to form a molding area. A first wiring area is provided between the silicon bridge and the inner surface of the molding area. Multiple first-type heat dissipation parts are spaced apart within the first wiring area to form a heat dissipation area. The first-type heat dissipation parts have a first insulating part near the inner surface of the molding area. A second-type heat dissipation part is disposed on the silicon bridge. The photonic chip is disposed on the outer surface of the heat dissipation area. This system vertically stacks multiple electronic chips through the non-planar reconstruction layer, resulting in a small volume and the ability to lay out various linewidths and spacings of wiring, greatly improving the performance, heat dissipation, and strength of the electronic chips.

The heater comprises a support and a heating piece, the heating piece is arranged on the support in a surrounding mode in the circumferential direction of the support, the heating piece is in a strip shape and comprises a planar main body part and linear side parts, and the side parts comprise the windward side part and the leeward side part arranged back to back. The windward side part faces an air inlet of the heater, and the leeward side part faces an air outlet of the heater. The strip-shaped heating element is adopted, the heating element comprises the linear windward side part and the leeward side part which are arranged towards the air inlet and the air outlet of the heater respectively, compared with a conventional cylindrical heating wire, the windward side part and the leeward side part are linear and have extremely small surface area, airflow resistance in the heater is better reduced, and the heating effect is improved. Meanwhile, the planar main body part has a larger heating surface area, so that the airflow flowing through the surface of the planar main body part can be fully heated, and the heating efficiency of the heater and the hot air outlet efficiency of the heater are improved.