188results about How to "Easy to embed" patented technology

The invention belongs to the technical field of lithium ion battery negative electrode materials, and particularly relates to a method for preparing a lithium ion battery negative electrode material from sulfur-doped black phosphorus-carbon. A carbon material and sulfur powder are subjected to ball milling, uniform mixing and vacuum high-temperature calcination to obtain a sulfur-doped carbon material; and uniformly mixing the sulfur-doped carbon material with black phosphorus, and performing high-energy ball milling in an inert atmosphere to obtain the sulfur-doped black phosphorus-carbon composite negative electrode material. According to the preparation method provided by the invention, the black phosphorus, the carbon material and the sulfur are well combined, so that the high capacity of the material is ensured, the structural stability of the composite material can be improved, the polarization of the material is reduced, and the cycling stability and the rate capability of the battery are improved.

The invention relates to the field of disposable hygienic products, in particular to a paper diaper with a fluffy non-woven fabric core body of a net structure and a preparation process of the paper diaper, and mainly solves the problems that in the prior art, macromolecular water-absorbent resin particles of an online water-absorbent paper core body are difficult to enter fluffy non-woven fabric, and the strength is poor. The paper diaper body comprises a liquid-permeable surface layer, an absorption core layer and a liquid-tight bottom layer which are sequentially stacked from top to bottom; the absorption core layer comprises a first fluffy non-woven fabric, a second fluffy non-woven fabric compounded on the lower surface of the first fluffy non-woven fabric and macromolecular water-absorbent resin particles laid on the upper surface of the first fluffy non-woven fabric; at least two material storage areas are arranged on the first fluffy non-woven fabric side by side in the transverse direction, holes are punched or embossed on the first fluffy non-woven fabric in each material storage area, and the macromolecular water-absorbent resin particles comprise first macromolecular water-absorbent resin particles which are distributed in each material storage area.

The invention discloses a positive electrode lithium supplementing agent, a positive electrode plate, a secondary battery and a power utilization device, and belongs to the technical field of batteries, the positive electrode lithium supplementing agent comprises lithium phytate and a lithium supplementing agent, and the lithium supplementing agent comprises at least one of Li5FeO4, Li6CoO4 and Li2NiO2. The lithium phytate and the lithium supplementing agent are combined to serve as the positive electrode lithium supplementing agent, the lithium phytate and the lithium supplementing agent act together, active oxygen and metal ions released by the lithium supplementing agent are adsorbed, side reactions of the electrolyte are reduced, the electrochemical stability of a system is maintained under high voltage, meanwhile, lithium can be completely released under a high-voltage lithium cobalt oxide system, and the service life of the lithium battery is prolonged. The release amount of a lithium source is effectively increased, the lithium consumption of a negative electrode SEI film forming reaction is fully supplemented, the embedding and separating process of lithium ions in a positive electrode material is promoted, the gas expansion of the secondary battery is improved, and the cycle life of the secondary battery is effectively prolonged.

The utility model belongs to the technical field of geogrids, and particularly relates to a reinforced geogrid which comprises first grid strips and second grid strips. A plurality of first grating strips are arranged in parallel at intervals; a plurality of second grid strips are arranged in parallel at intervals in the length direction of the first grid strips; the first grid strips and the second grid strips are perpendicularly staggered to form a plurality of grid chambers, reinforcing parts are arranged at the intersections of the first grid strips and the second grid strips, the thickness of the reinforcing parts is larger than that of the first grid strips and that of the second grid strips, and ground gripping structures and anti-skid structures are arranged on the upper faces and the lower faces of the reinforcing parts correspondingly. The ground gripping structure is used for increasing the ground gripping force of the bottom of the geogrid, and the anti-skid structure is used for increasing the friction force between the top of the geogrid and soil. The strength of the geogrid can be enhanced through the thickened reinforcing part, the geogrid is resistant to tear and deformation, the ground gripping structure and the anti-skid structure can enhance the connecting force between soil on the surface of the geogrid and the geogrid, and the overall stability of a slope can be improved through the geogrid.

The invention relates to a preparation method of a biomass hard carbon negative electrode material and application of the biomass hard carbon negative electrode material in the field of energy storage. The method comprises the following steps: carrying out pretreatment, crushing and pre-carbonization treatment on a biomass raw material to obtain a pre-carbonized material; mixing and stirring the pre-carbonized material and an acid solution, washing and drying to obtain an acid-treated hard carbon material; soaking the obtained acid-treated hard carbon material in an alkaline solution, heating and stirring, washing and drying to obtain an alkali-treated hard carbon material; mixing the obtained alkali-treated hard carbon material with a pore-forming agent, carrying out ball milling, carrying out solid-liquid separation, and carrying out high-temperature carbonization and grinding on the obtained solid phase to obtain a powder sample; and mixing the obtained powder sample with hydrofluoric acid, and carrying out hydrothermal treatment to obtain the biomass hard carbon negative electrode material. The sodium ion battery prepared by taking the biomass hard carbon negative electrode material as a negative electrode material has the characteristics of high initial coulombic efficiency, high low-voltage platform specific capacity and excellent cycle performance and rate capability.

The invention discloses a battery negative electrode material and a preparation method thereof, and relates to the technical field of batteries. The battery negative electrode material comprises an inner core, a titanium dioxide coating layer coated on the surface of the inner core, a lithium titanate coating layer coated on the surface of the titanium dioxide coating layer, a carbon coating layer coated on the surface of the lithium titanate coating layer and a polymer coating layer coated on the surface of the carbon coating layer, the inner core comprises a silicon-based negative electrode material; the polymer coating layer comprises at least one of polyaniline, polythiophene and polypyrrole. Under the action of the four coating layers, the integrity of the silicon-based negative electrode material can be kept, direct contact between the silicon-based negative electrode material and an electrolyte is avoided, side reactions are reduced, the capacity fading of the battery in the charge-discharge cycle process is reduced, and the rate capability and the cycle stability of the battery are improved.

The invention discloses an expanded microcrystalline graphite / Fe2O3 / SnO2 lithium ion battery micro-nano negative electrode material as well as a preparation method and application thereof, and relates to the technical field of new material preparation and new energy. Comprising the following steps: by taking high-purity microcrystalline graphite as a raw material, preparing expanded microcrystalline graphite by adopting an oxidation method and an inert atmosphere heat treatment method, then preparing an expanded microcrystalline graphite / Fe2O3 composite material by adopting a water bath method and an air atmosphere heat treatment method I, and then preparing the expanded microcrystalline graphite / Fe2O3 / SnO2 composite material by adopting a hydrothermal method and the air atmosphere heat treatment method I for the negative electrode of the lithium ion battery. The ternary composite material has the first specific discharge capacity of 1539.9 mAh / g under the current density of 0.1 A / g, the first coulombic efficiency is 70.1%, and the ternary composite material still has the specific discharge capacity of 1003.2 mAh / g after 100 cycles. The expansion effect of the high-purity microcrystalline graphite is remarkable, the lithium storage capacity and the cycling stability of the lithium ion battery negative electrode material are remarkably improved by selecting and adding the nano metal oxide, and a new thought and a new method are provided for developing the high-performance lithium ion battery negative electrode material.

The invention discloses a digital watermark camouflage method based on reverse information entropy tracking, which comprises the following steps: dynamically adjusting the embedding strength and the concealment of a digital watermark by monitoring the local entropy fluctuation of a signal in different processing stages, and monitoring the complexity of the signal through the local entropy change in the signal processing process, the method comprises the following steps of: extracting a variable quantity of a digital watermark, adjusting the camouflage degree of the digital watermark according to the variable quantity, adjusting key parameters in a digital watermark extraction and recovery process in real time through an information entropy feedback mechanism, optimizing the recovery precision of the digital watermark, and optimizing a digital watermark embedding process by adopting a reverse information entropy minimization method in a high-noise environment. And the anti-interference capability of the digital watermark under the noise interference condition is improved. According to the method, the digital watermark embedding and recovering strategy is dynamically optimized, so that effective recovery and stable transmission of digital watermark information are ensured under various noise and signal change conditions.

The invention belongs to the technical field of materials, and relates to a preparation method of a fluorinion-induced manganese oxide composite material and application of the fluorinion-induced manganese oxide composite material as a positive electrode material in an aqueous magnesium ion capacitor. The preparation method comprises the following steps: firstly, preparing a MnO2 precursor from a positive electrode through a hydrothermal method, and annealing to obtain a pure-phase MnO2 nanoflower structure; the preparation method comprises the following steps: preparing MnO2 nanoflowers, adding the prepared MnO2 nanoflowers into polyethylene glycol, adding manganese chloride, potassium fluoride and polyvinylpyrrolidone, carrying out ultrasonic dispersion for 30 minutes, continuously stirring for 1 hour, and transferring the obtained mixed solution into a Teflon reaction kettle for hydrothermal reaction to obtain the MnO2 / Mn2O3 / KMnF3 composite material. The composite material is used as a positive electrode and activated carbon is used as a negative electrode to assemble a water-based magnesium ion capacitor device, and the water-based magnesium ion capacitor device can reach relatively high specific capacitance after an electrochemical test. According to the invention, a hydrothermal method is adopted for synthesis, the process is simple, the material cost is low, and the material is non-toxic and harmless, so that the capacitor has high practical application value and is expected to become a novel green energy storage device.

The invention belongs to the field of sodium-ion batteries, and particularly relates to a preparation method of lotus petiole derived hard carbon as a negative electrode of a sodium-ion battery. Firstly, lotus petiole is subjected to pretreatment such as washing and drying to remove surface impurities, then a pretreated material is obtained by adopting a microwave-assisted and chemical treatment method, and finally, the hard carbon material with good stability is obtained by high-temperature carbonization in a nitrogen atmosphere. The half-cell assembled by the biomass derived hard carbon prepared by the invention has excellent electrochemical performance. In the preparation process, raw materials are cheap and easy to obtain, the cost is low, the method is simple and easy to implement, the preparation efficiency is high, and no template or surfactant exists. A half battery assembled by the prepared hard carbon material has relatively high specific capacity, has the reversible capacity of 342.4 mAh g <-1 > under the current density of 20 mA g <-1 >, and still has the capacity retention rate of 90.2% after 2000 cycles under the current density of 1 A g <-1 >. In addition, the natural lotus petiole is used as the raw material, the material is easy to obtain and low in cost, and comprehensive utilization of biomass waste is achieved.

The application discloses a kind of unmanned plane flight plan pre-dispatching tool and method, wherein the tool includes: information input module, target constraint generation module, dispatching model establishment module, dispatching scheme generation module and dispatching scheme release module;The unmanned plane flight plan pre-dispatching method is realized using the above tool, including the following steps: step 1, receiving various information;Step 2, generating the target constraint of unmanned plane flight plan pre-dispatching;Step 3, establishing the target planning model of unmanned plane flight plan pre-dispatching;Step 4, solving the generation of unmanned plane flight plan pre-dispatching scheme;Step 5, release scheme, complete the unmanned plane flight plan pre-dispatching.The application provides implementation tool and technical basis for low-altitude flight service, urban air traffic management, unmanned plane command control.

The present application discloses a cabinet assembly and a refrigeration device, wherein the cabinet assembly includes a door body, a cabinet and a hinge assembly. During the process of the door body opening from a first opening angle to a second opening angle relative to the cabinet, a first vertical distance from a reference point of the door body to an outer edge gradually decreases, and a second vertical distance to an inner edge gradually increases within a predetermined angle range. A third angle between a first vertical line and a first reference plane gradually decreases within a range of 0 to 90 degrees, and a fourth angle between a second vertical line and the first reference plane gradually increases within a range of 0 to 90 degrees, and exceeds 90 degrees within a predetermined angle range, so as to offset the increase of projection lines of the first vertical line and the second vertical line on the first reference plane and the second reference plane, respectively, thereby reducing the problem of squeezing the cabinet and exceeding the side of the cabinet assembly when the door body is opened.

The utility model discloses a wire feeding positioning mechanism of a mesh welding machine. The wire feeding positioning mechanism comprises a wire feeding positioning device, the wire feeding positioning device is composed of a workbench and a leveling mechanism, a plurality of sets of first wire feeding mechanisms, second wire feeding mechanisms and third wire feeding mechanisms are arranged on the upper side of the workbench, and lifting mechanisms are installed at the bottom ends of the first wire feeding mechanisms, the bottom ends of the second wire feeding mechanisms and the bottom ends of the third wire feeding mechanisms correspondingly. The lifting mechanism is composed of a telescopic rod, a top plate and a guide rod, the bottom end of the guide rod is installed on the upper side of the top plate, and the bottom end of the top plate is installed at the bottom end of the telescopic rod. In the wire feeding process, the first wire feeding mechanism, the second wire feeding mechanism and the third wire feeding mechanism are selected according to the number of welding steel wires, and after determination, the lifting mechanism drives the first wire feeding mechanism, the second wire feeding mechanism or the third wire feeding mechanism to move upwards; and the steel wire is limited through the first wire feeding mechanism, the second wire feeding mechanism or the third wire feeding mechanism.

This invention belongs to the field of hard carbon technology, specifically relating to a bamboo-based and lignin-based hard carbon composite material, its preparation method, and its applications. The process involves pretreating raw materials to obtain pretreated material; pretreating the pretreated material with an acidic oxidant to obtain acidic oxidant pretreated material; pre-oxidizing the acidic oxidant pretreated material to obtain pre-oxidized material; pre-carbonizing the pre-oxidized material under a protective atmosphere to obtain pre-carbonized material; pulverizing the pre-carbonized material to obtain pulverized material; acid washing followed by water washing to obtain purified material; soaking the purified material in acid, filtering, and drying to obtain soaked material; mixing the soaked material with a modifier, and high-temperature coating and carbonizing under a protective atmosphere to obtain bamboo-based coated hard carbon or lignin-based coated hard carbon. Mixing the two types of hard carbon and carbon coating yields a bamboo-based and lignin-based hard carbon composite material, which is used in negative electrode sheets and batteries. When applied to batteries, the hard carbon composite material of this invention can improve battery energy density.

A broadband voltage transformer error compensation method is proposed. First, a broadband test platform is constructed using a signal generator, power amplifier, standard voltage transformer, and high-bandwidth data acquisition system. The ratio and phase errors of the transformer at multiple frequency points are acquired through primary-side excitation and secondary-side synchronous acquisition. Based on the slope, first derivative, and second derivative characteristics of the error curve, the entire frequency band is adaptively divided into segments. Within each segment, multiple candidate models are fitted using a polynomial or exponential-linear combination model. The optimal model is selected based on the coefficient of determination, mean absolute error, and root mean square error. Ratio and phase error compensators are constructed based on the fitting functions of each segment, and error compensation is achieved using a feedforward approach. This method can significantly reduce amplitude and phase errors over a wide frequency range, improving the dynamic measurement accuracy of the voltage transformer.

The utility model relates to the technical field of energy storage cabinet installation mechanisms, and discloses an industrial and commercial energy storage cabinet installation mechanism which comprises an energy storage cabinet body, an opening and closing door is arranged on the front surface of the energy storage cabinet body, and supporting moving mechanisms are symmetrically arranged on the two sides of the energy storage cabinet body. Fixed reinforcing blocks are symmetrically arranged between the top of the supporting and moving mechanism and the two sides of the energy storage cabinet body, connecting and clamping mechanisms are symmetrically arranged at the bottom end of the energy storage cabinet body, and the outer sides of the surfaces of the two connecting and clamping mechanisms are sleeved with a first sleeve block and a second sleeve block respectively. According to the energy storage cabinet, through the arranged supporting moving mechanism, when the whole energy storage cabinet body is installed, the whole energy storage cabinet body can be supported under the action of the supporting moving mechanism, the whole energy storage cabinet body can be conveniently moved, the energy storage cabinet body can be conveniently moved to an installation station, and then the energy storage cabinet body is descended; therefore, grounding installation is carried out and operation is convenient.

The utility model relates to the field of antennas, and discloses a dipole antenna which comprises a connecting base and a supporting arm, a rotating mechanism is fixedly arranged at the center of the upper end face of the connecting base and comprises an upper layer plate, a middle layer plate and a lower layer plate, and a fixing frame is fixedly arranged at the center of the upper end face of the upper layer plate. And a plurality of main body pieces are arranged on the two sides of the outer wall of the fixing frame in a threaded mode, connecting pieces are arranged on one sides of the multiple main body pieces in a threaded mode, and rotating grooves are formed in the centers of the front end face and the rear end face of the connecting base in a penetrating mode. According to the utility model, the effect of rotating the fixing frame is realized through the rotating mechanism, so that the orientation of the main body piece is adjusted, the main body piece is prevented from being scratched with other objects in a relatively long and narrow mounting space, and the rotating angle of the supporting arm can be preliminarily adjusted through the embedding groove and the embedding block; when the oscillator antenna is installed on a side wall and a roof, the orientation of the fixing frame is always upward.

The invention discloses a metal target machining forming device and method, and relates to the technical field of metal target machining, the forming device comprises a workbench, and the workbench is provided with a positioning table used for bearing a metal target; a plurality of groups of grinding rollers for positioning the metal target material are distributed on the positioning table in a circumferential array manner, each grinding roller is connected with a first rotating module for driving the grinding roller to synchronously rotate along the outer edge surface of the metal target material, and each grinding roller is also connected with a second rotating module for driving the grinding roller to rotate; an adjusting module is further arranged on the positioning table and used for adjusting the grinding rollers to synchronously move in the direction close to or away from the axis end of the metal target; a measuring module is further arranged on each grinding roller and is used for detecting the distance between the two groups of grinding rollers which are oppositely arranged in real time; the metal target does not need to be detached for measurement in the forming machining process, the synchronous detection effect can be achieved in the grinding process, and the machining efficiency is effectively improved.

The utility model discloses a kind of deformation self-adapting anti-seepage structures of embankment linking section, including embankment, embankment crossing building, the side pier both sides of embankment crossing building located in embankment are provided with concrete spur wall, concrete spur wall outside and intermediate position are reserved with notch, flat plate type plastic steel sheet pile is horizontally inserted into notch and is set, the undisturbed soil layer of embankment is formed with undisturbed soil layer by in-situ mixing, wave type plastic steel sheet pile is horizontally inserted into undisturbed soil layer by in-situ mixing, flat plate type plastic steel sheet pile and wave type plastic steel sheet pile are flexibly linked to form composite anti-seepage structure type by using lock catch, can solve linking section leakage problem, improve engineering full life cycle safety, with deformation coordination, construction controllability and anti-seepage reliability and other technical features.

The application provides a watermark embedding and extracting method, device, equipment, storage medium and product. The watermark embedding method comprises: performing block processing on an image to be embedded with a watermark to obtain a plurality of image blocks, wherein the plurality of image blocks comprise a first number of first image blocks and a second number of second image blocks, and target feature parameters of the first image blocks and the second image blocks are different; performing transformation processing on the plurality of image blocks respectively to obtain transformation domain features of the plurality of image blocks, wherein the transformation domain features comprise a low-frequency subband and a plurality of high-frequency directional subbands; and based on the transformation domain features of the plurality of image blocks, watermark information is embedded into target low-frequency subbands of the first number of first image blocks and target high-frequency directional subbands of the second number of second image blocks to obtain an image containing a watermark.

This application provides a method and related equipment for preprocessing game trajectory data. The method includes: converting game trajectory data into a first grid sequence; merging high-frequency adjacent grids in the first grid sequence to calculate a second grid sequence; extracting embedding vectors from the second grid sequence to calculate an embedding vector sequence; and using the embedding vector sequence as a training set input to a deep learning model. This application's embodiment, by converting game trajectory data into a first grid sequence, merging high-frequency adjacent grids in the first grid sequence, and then extracting embedding vectors from the second grid sequence, can capture the prior influence of environmental factors on trajectory distribution and the potential contextual semantic information in the trajectory, achieving effective compression of long trajectory data.

The utility model discloses a kind of anchor jaw formula open hole lateral drilling whip-lay, it includes the guide inclined surface of being equipped with guide inclined body, guide inclined body is connected with central rod, the lower part of central rod is sequentially connected with the center tube equipped with anchor jaw retraction mechanism and the guide shoe equipped with ball-throwing press mechanism in proper order;Anchor jaw retraction mechanism is mainly composed of anchor jaw and piston, anchor jaw installed in center tube is connected with connecting pin through connecting rod installed in piston, piston and limit ring are installed in the outer sleeve connected with center tube;Ball seat is provided in ball-throwing press mechanism, and the sealed ball is seated on ball seat. The whip-lay in the utility model greatly improves the vertical anchoring force to open hole well wall. In open hole lateral drilling construction, the construction mode of cement plug as vertical support is avoided, and the whip-lay is directly used for lateral drilling, and the construction efficiency of open hole lateral drilling well and multi-lateral drilling well can be greatly improved.

The invention provides an offshore photovoltaic support foundation construction method, and relates to the field of offshore photovoltaic technologies. The construction method comprises the steps that a pile driving barge and a pile foundation are transported to a first to-be-laid area of the sea surface, the pile driving barge comprises a lifting device, the lifting device comprises a first rigging and a second rigging, and the pile foundation comprises a column body, a first lifting lug arranged at the first end of the column body and a second lifting lug arranged at the second end of the column body; the first rigging is connected with the first lifting lug, and the second rigging is connected with the second lifting lug; the first rigging and the second rigging are lifted to lift the pile foundation to a preset position; the first rigging is lifted, and the second rigging is lowered, so that a preset angle is formed between the pile foundation and the sea surface; and the pile foundation is lowered through the first rigging, so that the pile foundation goes deep into a seabed mud layer corresponding to the first to-be-laid area. According to the construction method, the mounting difficulty of the pile foundation can be reduced, and the mounting efficiency and the mounting stability are improved.

The invention provides a multi-dimensional vibration platform with oppositely-arranged double-sandwich piezoelectric actuators and an excitation method of the multi-dimensional vibration platform, and belongs to the technical field of high-frequency vibration engineering and micro-nano machining.The vibration platform comprises a center platform, the two oppositely-arranged piezoelectric actuators, two end covers and two bolts, wherein the center platform is integrated with the tail end platform, the two flexible hinges and the two amplitude-change poles, and the center platform is slender and is in mirror symmetry about the longitudinal symmetry plane of the tail end platform. The piezoelectric actuator comprises a longitudinal vibration ceramic group, a bending vibration ceramic group around the Y axis and a bending vibration ceramic group around the Z axis, translation along the X / Y / Z axis and rotation around the Y / Z axis can be realized through in-phase or anti-phase excitation different combinations under the condition of not increasing extra driving channels, and five-degree-of-freedom high-frequency micro-vibration output can be achieved at most. The structure has high symmetry, low parasitic vibration, compact size and high integration, and is suitable for precise engineering scenes such as micro-nano processing, laser-assisted manufacturing, cell manipulation and active vibration suppression.

The present invention discloses a high-efficiency solar street lamp lighting device, and relates to the technical field of solar street lamps, comprising a pad, a pole is arranged on the top of the pad, the bottom end of the pole passes through the pad, and a fixing mechanism is arranged, and an LED lamp is fixedly installed on the outer side of the pole near the top, a main control box is movably installed on the outer side of the pole, and a fixing ring is sleeved and fixedly installed on the outer side of the pole near the top, a fixing frame is fixedly connected to the left side of the fixing ring, and a partition is fixedly connected to the inner cavity of the fixing frame. By arranging photovoltaic panels, wind fan blades and wind turbines, photovoltaic panels can be used to absorb solar energy and convert it into electrical energy to provide electrical energy during daily work, and the wind fan blades and wind turbines cooperate to use wind force to push the wind fan blades to a rotating turntable, and cooperate with the wind turbine to provide electrical energy again, thereby improving the efficiency of the LED lamp and avoiding the problem of insufficient power in extreme weather.

The invention discloses a soft carbon coated sulfur-nitrogen co-doped coal-based hard carbon material and a preparation method thereof.The preparation method comprises the steps that firstly, bituminous coal powder and thiourea particles are dissolved in absolute ethyl alcohol, fully stirred and mixed to be uniform, and after drying, bituminous coal-thiourea mixed powder is prepared; carrying out primary carbonization treatment on the bituminous coal-thiourea mixed powder in an inert atmosphere to prepare a sulfur-nitrogen co-doped coal-based hard carbon material; and depositing asphalt on the surface of the sulfur and nitrogen co-doped coal-based hard carbon material, and carrying out secondary carbonization treatment on the product to prepare the soft carbon coated sulfur and nitrogen co-doped coal-based hard carbon material, a sodium ion battery based on the soft carbon coated sulfur-nitrogen co-doped coal-based hard carbon material has high sodium storage specific capacity and first coulombic efficiency and high potential platform area sodium storage capacity proportion.

This invention provides a bracket, a heat exchange component, and an air conditioner. The bracket is disposed on a heat exchanger and is used to fix the sterilization component. The bracket includes: a first bracket; a second bracket; and a connecting rod, which includes a first end and a second end, the first end being connected to the first bracket and the second end being connected to the second bracket. The first bracket is used to rotate around the first end, and the second bracket is used to rotate around the second end. The problem solved by this invention is how to make the sterilization bracket usable in different models of air conditioners. Compared with the prior art, the technical effect achieved by this invention is that by rotating the first and second brackets, the overall length of the bracket is changed, thereby enabling the bracket to adapt to different models of air conditioners.

The utility model discloses a coil winding and embedding device which comprises a bottom plate, a winding mechanism and an embedding mechanism are arranged on the bottom plate, the winding mechanism comprises a vertical column arranged on the bottom plate, a base mold is connected to the vertical column in a sliding mode in the length direction of the vertical column, a first moving assembly driving the base mold to move is arranged at the upper end of the base mold, and a second moving assembly driving the base mold to move is arranged at the lower end of the base mold. The embedding mechanism comprises cutter grooves symmetrically formed in the vertical column, a push-type cutter with one end rotationally connected with the bottom plate is contained in each cutter groove, and a second moving assembly driving the push-type cutter to rotate is arranged on one side of the push-type cutter. According to the utility model, the coil can be embedded into the slot of the stator iron core after being wound, the coil does not need to be taken down and then transferred to another slot embedding equipment, and the winding and embedding functions can be realized by only one piece of equipment, so that the consumed time is reduced, and the processing efficiency is improved.

The utility model provides a fruit and vegetable fresh-keeping device, which relates to the technical field of fresh keeping and comprises a device body. The device body is provided with a fruit and vegetable preservation box, an embedding groove is formed in the top end face of the fruit and vegetable preservation box in a surrounding mode, stress plates are arranged on the tops of the middles of the left end face and the right end face of the fruit and vegetable preservation box, and semicircular heads with front-back through holes are arranged on the tops of the stress plates of the fruit and vegetable preservation box. A left-right through limiting groove is formed in the middle of the end face of the top of a stress plate of the fruit and vegetable preservation box, a sealing air bag strip is embedded into an embedding groove of the fruit and vegetable preservation box, and the whole sealing air bag strip is of a rounded-corner frame-shaped tubular structure, so that the sealing air bag strip is conveniently embedded into the embedding groove of the fruit and vegetable preservation box; the sealing airbag strip can be conveniently extruded through the insertion strip of the fruit and vegetable fresh-keeping cover to achieve sealing, and the problems that due to the fact that the sealing strip of the fresh-keeping box is of a solid type, the stress deformation capacity of the sealing strip is poor, the sealing performance of the fresh-keeping box is prone to being affected, and the sealing strip is inconvenient to be arranged to be of a hollow airbag type to improve the deformation sealing effect are solved.

This invention discloses a composite anti-rotational offset method for a wireless power transmission system for underwater vehicles, including an anti-rotational offset coupling mechanism and an anti-rotational offset power stabilization control strategy. The anti-rotational offset coupling mechanism includes two transmitting coil groups and one receiving coil group. The receiving coil group has a ring structure, consisting of six segmented coils connected in series, with adjacent coils having opposite winding directions. The first and second transmitting coil groups each consist of two coils connected in series, with the two transmitting coils in the same group having the same winding direction. The anti-rotational offset power stabilization control strategy achieves stable output power control by real-time acquisition of output power, calculation of the output power change rate, and adjustment of the phase angles of the two inverters. The first inverter drives the first transmitting coil group, and the second inverter drives the second transmitting coil group. This invention improves the system's rotational offset tolerance and achieves stable output power transmission under different rotational offset angles.