18results about How to "Keep it compact" patented technology

The invention belongs to the technical field of production of special materials for electrical equipment, and provides a carbon ceramic resistor and a preparation method and application thereof in view of problems existing in the prior art. Composite conductive particles are uniformly dispersed in a ceramic matrix of the carbon ceramic resistor; the composite conductive particles comprise conductive carbon and aluminum oxide and are provided with hierarchical pores; the conductive carbon is constructed in the hierarchical porous composite conductive particles, and the dispersion of the carbon material is adjusted into the dispersion and distribution of the composite conductive particles in the ceramic matrix, so that the carbon material is more uniformly distributed in the carbon ceramic resistor; the phenomenon that conductive filler is prone to agglomeration due to the fact that a conductive carbon material is directly mixed with a ceramic material in a traditional method is avoided, meanwhile, due to the existence of aluminum oxide, interface bonding of the composite conductive particles and the ceramic matrix is tighter, and the overall conductive performance, strength and stability of the carbon ceramic resistor can be improved.

The utility model discloses a vacuum generator with an improved structure, which comprises a vacuum generator body, an inner cavity is arranged in the vacuum generator body, two ends of the vacuum generator body are respectively provided with an air inlet and an air outlet which are communicated with the inner cavity, and the vacuum generator further comprises a noise reduction assembly. The noise reduction assembly is arranged on the outer side of the vacuum generator body, the noise reduction assembly is detachably connected with the exhaust port in a sealed mode, and the noise reduction assembly is used for reducing noise generated by the exhaust port when the vacuum generator operates. The noise reduction assembly is arranged on the outer side of the vacuum generator body, so that the whole vacuum generator body is kept small, exquisite and compact, and the vacuum generator is more beneficial to being used in application occasions with limited space. And meanwhile, the noise reduction assembly and the exhaust port are in detachable sealing connection, so that the maintenance complexity and cost are reduced.

The utility model discloses a multi-contact line-to-board connector, and belongs to the technical field of connectors. A multi-contact line-to-board connector comprises a plug and a socket which are matched with each other, and further comprises a pair of first conducting strips which are arranged in the socket, contact elastic pieces are fixedly arranged at one ends of the first conducting strips, a connecting groove is formed between the contact elastic pieces, a second conducting strip is arranged in the plug, and the outer walls of the top and the bottom of the second conducting strip abut against the contact elastic pieces; according to the utility model, the pair of first conducting strips with the contact elastic sheets are arranged in the socket, the connecting grooves with small openings and large interiors are formed between the contact elastic sheets, reliable connection between the second conducting strips and the first conducting strips can be ensured under the elastic action of the contact elastic sheets, and due to the elastic effect of the connecting grooves, the reliable connection between the second conducting strips and the first conducting strips can be ensured after multiple times of plugging. The compact effect between the second conducting strip and the connecting groove can still be kept, the situation of loosening or falling off is reduced, and the reliability and stability during use are guaranteed.

The invention discloses an intelligent surgical exterior mirror system which comprises a working trolley, a pneumatic mechanical arm, an intelligent multi-light-path imaging system arranged at the tail end of the pneumatic mechanical arm, a 3D display device and an auxiliary control device. The working trolley comprises a box body, a display rotating bracket, a four-star foot base and universal trundles; the pneumatic mechanical arm comprises a pneumatic mechanical large arm, a pneumatic mechanical small arm, a pneumatic camera branch arm and a spherical joint; the intelligent multi-optical-path imaging system comprises a plurality of integrated zoom imaging optical paths, an intelligent focusing controller and an annular integrated chip. The 3D display device comprises a polarization type 3D main screen, a polarization type 3D auxiliary screen and a head-mounted display device. The head-mounted display equipment comprises VR glasses and AR glasses; the auxiliary control device comprises a pressure-sensitive pedal. According to the system, the requirements of modern surgical operations are met, and more intelligent services, more efficient signal transmission and more comfortable use experience are provided.

The miniature unmanned aerial vehicle comprises a force bearing rack, a first rotor wing unit and a second rotor wing unit, the first rotor wing unit comprises at least two upper rotor wing assemblies arranged on the first face of the force bearing rack, and a height difference exists between paddle rotating planes of the adjacent upper rotor wing assemblies; the horizontal projections of the blade rotation tracks of the adjacent upper rotor assemblies form a first overlapping area; the second rotor wing unit comprises at least two lower rotor wing assemblies arranged on the second face of the force bearing rack, the first face and the second face are oppositely arranged, the lower rotor wing assemblies and the upper rotor wing assemblies are arranged in a staggered mode, and a height difference exists between paddle rotating planes of the adjacent lower rotor wing assemblies. And the horizontal projections of the blade rotation tracks of the adjacent lower rotor assemblies form a second overlapping area. The upper rotor wing assembly and the lower rotor wing assembly with the height difference are arranged on the force bearing rack, and the overlapped area design of the assemblies on the horizontal projection is adopted, so that the space utilization efficiency is improved.

The present application provides an objective lens, an objective lens system, a photolithography machine, and a design method of a voltage-stabilizing structure for an objective lens, and belongs to the technical field of photolithography machines. The present application can effectively convert a transient pressure drop into a steady-state pressure drop by arranging a voltage-stabilizing tube section at the gas outlet of the objective lens body. As a result, the gas pressure fluctuation inside the objective lens will be greatly reduced, thereby reducing the refractive index change caused by the pressure fluctuation, improving the stability of the optical performance, and due to the stability of the gas pressure, the change of the refractive index will also be effectively controlled.

The invention discloses a magnetic easy-to-separate Fe3O4-SnO-SiO2 composite catalyst and preparation and application thereof.The composite catalyst is of a core-middle layer-shell layer three-layer core-shell structure, a shell comprises a coating layer, the core comprises a magnetic core, the middle layer comprises an active layer, and the active layer is evenly adsorbed to the surface of the magnetic core; the magnetic core is Fe3O4; the active layer is any one or more than two of SnO, ZrO2 and TiO2; the coating layer is made of SiO2 and wraps the outer side of the active layer. The problems that efficient catalysis, convenient magnetic separation, long-acting circulation stability and precise regulation and control of a product structure cannot be synchronously solved in the prior art are solved. The conversion rate of the catalyst for catalytic synthesis of trimethylolpropane trioleate reaches 94.32%; the friction coefficient of the product is stabilized at 0.09-0.10, the wear volume is reduced by more than 68%, and the magnetic separation recovery rate is 98%.

According to the heating type humidifier, the first assembling cavity is formed in the humidifier body, the water tank can be assembled and disassembled in the first assembling cavity through the assembling opening, by means of the design, a user can take out the water tank from the first assembling cavity in the humidifier body to add water or clean the water tank after disassembling the assembling part from the assembling opening, and in addition, the heating type humidifier is convenient to use. When the water tank is assembled, the water tank added with water or cleaned can be reassembled into the first assembly cavity from the assembly opening, the whole machine body does not need to be moved, the water tank is allowed to be easily assembled and disassembled, water adding or cleaning of the water tank is facilitated, and the labor intensity of a user is greatly relieved; by means of the design, the humidifier keeps a certain compactness and attractiveness. Moreover, the heating assembly and the water tank are separated, so that the water tank does not need to be provided with an assembly connection position for assembling the heating assembly, the interior and the exterior of the water tank are relatively smooth, and the water tank is convenient to clean.

The invention relates to the field of intelligent wearable devices, and discloses a dimmable dice wearable device which comprises a dice shell, a main control circuit board is arranged in an inner cavity of the dice shell, and a central processing unit, an LED dot matrix module, a near-field induction unit, a wireless communication unit, an audio conversion unit and an electric power storage unit are integrated on the main control circuit board; the central processing unit is connected with the LED dot matrix module, the near-field induction unit, the wireless communication unit, the audio conversion unit and the power storage unit through an electrical loop. Through cooperation of the integrated LED display module and the light guide composite material shell, dynamic and digital adjustment of the wearable device is realized, and the wearable device integrates LED, audio playing, communication and user interaction functions. Different LED colors can be switched and corresponding audios can be played according to the emotion of a user, and meanwhile, emotion data can be transmitted and received through wireless communication.

The utility model relates to the technical field of line card, and disclose a line card, including lower cover and upper cover, the left side of lower cover and upper cover is provided with rotating component, and the right side of lower cover and upper cover is provided with buckle assembly, and the movable clamping relation between lower cover and upper cover is set up, and the wire fixing component is set up in the cavity of lower cover and upper cover, the rotating component includes side ear and first turnover seat, second turnover seat, and the side of two groups of side ear close to each other is fixed with first convex post and second convex post respectively installs, the utility model discloses through setting up wire fixing component, through setting up downside wire slot, first downside wire slot and second downside wire slot on the lower cover, setting up wire hole and upside wire slot on the second backplate, constitute multiple channels, support cable horizontal, vertical and oblique and pass, greatly facilitate the cable into line card and the layout of inside different directions, adapt complex wiring demand.

The invention provides a cup cover assembling device and an adapter, the cup cover assembling device comprises a cover body and the adapter, a liquid outlet of the cover body is provided with a first connecting feature, an inlet area of the adapter is provided with a second connecting feature, and the first connecting feature and the second connecting feature are in wedge-shaped combination, so that the cover body is connected with the adapter; the liquid outlet of the cover body and the inlet of the adapter are matched with a two-way limiting mechanism, the first connecting feature and the second connecting feature are combined to be in a locking state, the two-way limiting mechanism is stopped at the locking limiting point, the first connecting feature and the second connecting feature are separated from each other, and the two-way limiting mechanism is stopped at the splitting limiting point. According to the connecting system, wedge-shaped locking matching is adopted, specifically, a two-way limiting mechanism is additionally arranged, and a wedge-shaped locking point position and a limiting stop point position are separated, so that stress areas are differentiated, stress concentration is eliminated, fatigue damage caused by connecting characteristics is avoided, it is guaranteed that the cover and the adapter are assembled in place, the mounting precision, tightness and firmness can be kept, and the service life of the cover and the adapter is prolonged. The service life is prolonged.

The invention belongs to the technical field of surface modification of positive electrode materials of lithium ion batteries, and relates to an oxygen capture and thermal stability compound coating for a positive electrode material and application thereof, the oxygen capture and thermal stability compound coating comprises positive electrode active material particles and a compound functional coating covering the surfaces of the positive electrode active material particles, and rare earth elements comprise at least one of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu; the transition metal element comprises at least one of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co and Ni; the thickness of the composite functional coating ranges from 1 nm to 200 nm. The double functions of oxygen capture and thermal barrier are achieved through the composite functional coating; lattice oxygen release of the positive electrode material in a high-voltage and high-temperature environment can be remarkably inhibited, the side reaction of an electrolyte or solid electrolyte interface is reduced, the cycle life is prolonged, and the safety performance is improved.

The invention provides an in-vivo mineralization self-growth method of a double-layer protective coating, the corresponding double-layer protective coating and a preparation method of the double-layer protective coating, which can be applied to the technical field of preparation of medical implantable medical instruments such as oral cavities, orthopedics and heart stents. According to the method, the magnesium metal surface is subjected to in-vivo biomineralization, then rich calcium sources and phosphorus sources in body fluid are dynamically converted into a mineral substance protection layer on the magnesium metal surface in situ under the in-vivo biomineralization effect, through the reasonable structural design, new mineral substances can be continuously deposited in the coating, defects in the coating are repaired, and the compactness and integrity of the coating are kept. As the newly generated mineral substances are self-generated in a body fluid environment, the newly generated mineral substances can better adapt to a body fluid corrosion environment and keep good stability in the body fluid, so that durable and self-adaptive protection of magnesium-based metal in a complex body fluid corrosion environment is realized, and the magnesium-based metal has good biocompatibility and biological activity.

The application discloses a few-sample fraud type identification method of spectrum adaptive prompt and related devices, belonging to the field of electric digital data processing, the method comprises the following steps: after pre-processing the unlabeled graph data, extracting the high and low frequency characteristics of the nodes by using the Chebyshev model, training the spectrum perception model by adaptive weighting comparison learning through the node level spectrum weight coefficient, calculating the high frequency energy proportion of the downstream graph data, introducing the adapter to generate the enhanced filter coefficient, extracting the high and low frequency characteristics and weighting fusion, combining the clustering constraint optimization, and only updating a small amount of parameters. The application realizes the dynamic adaptation and efficient migration of pre-training spectrum knowledge to few-sample downstream tasks, significantly reduces the dependence on labeled data, alleviates the few-sample overfitting problem, and improves the fraud identification accuracy and generalization ability.

The invention discloses a B1-level flame-retardant optical cable and a manufacturing method thereof, and relates to the field of flame-retardant optical cables, the B1-level flame-retardant optical cable comprises an outer sheath, a flame-retardant layer is installed in an inner cavity of the outer sheath, a steel belt is installed in an inner cavity of the flame-retardant layer, an aluminum belt is installed in an inner cavity of the steel belt, and an aluminum belt armor layer is installed in an inner cavity of the aluminum belt. Glass fiber yarn is installed in an inner cavity of the aluminum strip armor layer, the inner cavity of the glass fiber yarn is filled with ointment, a filling assembly and a loose tube are installed in the inner cavity of the glass fiber yarn, and a cushion layer is installed in the center of the inner cavity of the glass fiber yarn. According to the B1-level flame-retardant optical cable and the manufacturing method thereof, the optical cable is mainly used in a service environment with definite requirements on heat released during combustion, a peak value and smoke production in scenes such as railways, buildings and traffic, and the situation that combustion drippings and toxic gas generated in the combustion process cause great threats to escape of personnel and safety of equipment can be effectively avoided.

The invention provides a preparation method of heat insulation silica gel foam, and belongs to the technical field of organic silicon foam. According to the raw material formula, the silica gel foam is prepared from two components in equal mass, by adding the modified aerogel composite material, the thermal conductivity of traditional silica gel foam is further reduced, good heat insulation and flame retardant effects are achieved, the flame retardant grade can reach V0, and therefore the silica gel foam has good application prospects as a heat insulation device in a new energy battery pack.

The application provides an earphone battery compartment structure and an earphone. The earphone battery compartment structure comprises: a battery compartment inner shell having a first accommodating groove, the first accommodating groove having a first opening facing a first direction and a second opening facing a second direction, the first direction being non-parallel to the second direction; a battery compartment outer cover having a second accommodating groove, the second accommodating groove having a third opening facing a direction opposite to the first direction and a fourth opening facing a direction opposite to the second direction; the battery compartment outer cover is covered on the battery compartment inner shell, the first opening and the third opening are oppositely arranged, and the second opening and the fourth opening are oppositely arranged, so that the first accommodating groove and the second accommodating groove form an accommodating cavity; and a battery is located in the accommodating cavity. The earphone battery compartment structure makes the installation and dismounting process of the battery more convenient. Not only the use experience of the user is improved, and the difficulty of replacing the battery is reduced, but also the service life of the earphone is prolonged, and the convenience and maintainability of the earphone are met.