Abstract: A necking-flanging roller and a necking-flanging mechanism are disclosed. The necking-flanging roller is used to form the necking portion and the flanging portion on the housing, including a roller body; and a limiting portion, arranged along the axial direction of the roller body and oppositely to the roller body, wherein a gap is formed between the roller body and the limiting portion, and the gap is provided for the free end of the flanging portion to insert therein and restricts the free end from bending and deforming. The technical solution provided in the present disclosure can improve the quality of the battery.

Abstract: The present disclosure relates to a chip-on-film bonding structure, a display module, and a terminal equipment. The chip-on-film bonding structure includes: a chip on film including a first pin, the first pin including a first end and a second end that are arranged to be opposite to each other; and a flexible circuit board including a second pin connected to the first pin, the second pin including a third end and a fourth end that are arranged to be opposite to each other; in which the first end and the third end overlap to form a first active contact region; and the second end and the fourth end respectively extend outward from two opposite sides of the first active contact region, to form a first exposed region at the second end and to form a second exposed region at the fourth end.

Abstract: In the preparation process for a passivated contact battery, preparation of a back surface field passivation structure thereof comprises: growing a tunneling oxide layer on a back surface of a silicon wafer; growing an intrinsic silicon carbide layer on a surface of the tunneling oxide layer; growing a phosphorus-doped silicon carbide layer on a surface of the intrinsic silicon carbide layer; and performing annealing, so as to cause the silicon carbide and the phosphorus in the phosphorus-doped silicon carbide layer to form covalent bonds. The passivated contact battery can be obtained by means of the described preparation process, and same comprises a silicon wafer as well as a tunneling oxide layer, an intrinsic silicon carbide layer, and a phosphorus-doped silicon carbide layer which are sequentially stacked on a back surface of the silicon wafer.

Abstract: The disclosure provides a rock stratum grouting water blocking test device and method under a mining coupling condition, and relates to the technical field of permeability testing. The device includes a solution box, a test box, a pressing plate replacement box, a grouting pump, a recovery pool and a water pump, the solution box is connected with the test box through a liquid injection pipe, the bottom of the test box is connected with the pressing plate replacement box, the pressing plate replacement box is connected with a bottom plate, and the bottom plate is connected with a control panel. The device can be used for testing the influence of the single-factor or multi-factor coupling action of temperature, water quality, water pressure, water flow and grouting pressure on the grouting effect.

Abstract: A self-decoupling wideband antenna system and a terminal device, including: a first end of a first radiation stub that is connected to a first ground point, and the first radiation stub is further connected to a first feed point; a first end of a second radiation stub and a first end of a third radiation stub are connected to a second ground point, and a slot is provided between a second end of the second radiation stub and a second end of the first radiation stub. A distance between the second end of the second radiation stub and the second end of the first radiation stub is less than a distance between the first end of the second radiation stub and the second end of the first radiation stub.

Abstract: A scaling module, and a calibration method and use method therefore, relating to the technical field of reflection detection. The scaling module comprises a three-dimensional scaler (1); the three-dimensional scaler (1) comprises a microwave reflective layer (11) and an optical reflective layer (12); the microwave reflective layer (11) has a first scaling surface, and the optical reflective layer (12) has a second scaling surface; the first scaling surface is divided into a plurality of first scaling areas, the plurality of second scaling surfaces are divided into a plurality of second scaling areas, and the plurality of first scaling areas and the plurality of second scaling areas are arranged in a one-to-one correspondence manner; the microwave reflective layer (11) is used for reflecting microwaves emitted by a synthetic aperture radar, and the optical reflective layer (12) is used for reflecting light to an optical imaging device.

Abstract: The present application provides a necking method, a necking apparatus, and a battery manufacturing device. The necking method is used for forming a necked portion on a shell with an open end. The necking method includes: forming an annular groove on the shell, where the annular groove extends in a circumferential direction of the shell; and expanding a width of the annular groove towards the open end to form the necked portion. The technical solution of the present application can effectively reduce deformation of the shell, ensure safety of an electrode assembly, and improve performance stability of a battery cell. Meanwhile, pre-necking the shell effectively reduce a risk of deformation resilience of the shell after the necked portion is formed, thereby improving machining precision and structural stability of the necked portion.

Abstract: The present disclosure relates to a thermal coupling method for preparing ethylene by ethanol dehydration and device thereof. The device includes an ethanol dehydration reaction system, a quenching compression system, an alkaline washing system, a molecular sieve drying system and an ethylene purification and propylene refrigeration cycle system; ethanol dehydration reaction products in the ethanol dehydration reaction system serve as a heat source for preheating, vaporization and superheating of a raw material of ethanol; tower bottoms of an evaporation tower in the quenching compression system serve as a heat source for preheating of a feed stream of the evaporation tower and heating of an overhead gas of a quenching tower; products of ethylene in the alkaline washing system serve as a cold source for cooling of crude ethylene.

Abstract: The present disclosure provides a cemented filling material with bionic structure, a preparation method and an application thereof, and belongs to the field of structural modification methods of cemented filling materials and research and development of civil materials with ultra-high energy absorption characteristics. The cemented filling material with bionic structure includes a bionic honeycomb skeleton and cemented filling slurry, where the cemented filling slurry is poured in the bionic honeycomb skeleton.

Abstract: A display device includes first and second camera regions, a function integrating region, and an ambient light sensing region. A display panel has a first through hole in the first camera region, a second through hole in the second camera region, and a non-display region between the through holes. A cover panel is provided on the display side of the display panel. A grid glue has an orthographic projection of the first openings of the two camera regions and has an area greater than an orthographic projection of the through holes. A rigid heat dissipating layer has a second opening in all the four adjacent regions, and an orthographic projection of the second openings has an area greater than the orthographic projection of the first openings, and a photosensitive module defines an orthographic projection with an area greater than the orthographic projections of the first openings and the second openings.

Abstract: The disclosure provides a rock stratum grouting water blocking test device and method under a mining coupling condition, and relates to the technical field of permeability testing. The device includes a solution box, a test box, a pressing plate replacement box, a grouting pump, a recovery pool and a water pump, the solution box is connected with the test box through a liquid injection pipe, the bottom of the test box is connected with the pressing plate replacement box, the pressing plate replacement box is connected with a bottom plate, and the bottom plate is connected with a control panel. The device can be used for testing the influence of the single-factor or multi-factor coupling action of temperature, water quality, water pressure, water flow and grouting pressure on the grouting effect.

Abstract: A necking and flanging apparatus includes: an inner mold; a necking piece, disposed around the inner mold, where the necking piece is movable along a radial direction of the inner mold, and the necking piece is configured to coordinate with the inner mold to form a necked portion on a housing; and a press-fit piece, disposed around the inner mold, where the press-fit piece is movable along an axial direction of the inner mold, and the press-fit piece is configured to fit the necking piece to press and flatten the flanged portion of the housing.

Abstract: Method for evaluating electromagnetic performance of a permanent-magnet machine, wherein the method is implemented in a computer processer or in a controller of a permanent-magnet machine, calculating the magnetic field distribution by a sub-domain method; using current density of the equivalent current sheet to represent the boundary condition, iterating by the sub-do-main method and by the magnetic circuit method until a convergent result is obtained, calculating the electro-magnetic performance parameters on basis of the convergent result, so as to evaluate the electromagnetic performance.

Abstract: A method for generating a special effect for social networking interaction in a virtual environment of a game is performed by an electronic device. The method includes: displaying an object presentation interface of a target battle of the game when loading a virtual scene corresponding to the target battle, the object presentation interface being used for displaying a plurality of virtual objects participating in the target battle; receiving a special effect generating instruction for a first virtual object of the plurality of virtual objects, the special effect generating instruction being used for instructing to generate a special effect based on the first virtual object, and the first virtual object corresponding to a user of the electronic device triggering the special effect; and generating the special effect identifying the first virtual object in the object presentation interface.

Abstract: A temperature control system. The temperature control system includes a plurality of liquid pipelines and a multi-port valve. The multi-port valve includes a valve body and a valve core. The valve body has a mounting cavity, and the valve core is mounted in the mounting cavity. The valve body includes a body and a block-shaped additional portion, the mounting cavity is located on the body, and the block-shaped additional portion is attached to at least a part of a side wall of the body. The valve body includes a plurality of vias, and each via penetrates the block-shaped additional portion and a corresponding side wall of the body. Each liquid pipeline is configured to communicate with one via, there is a battery pack on at least one liquid pipeline, and the temperature control system is configured to control a temperature of the battery pack.

Abstract: A heat dissipation apparatus includes at least two heating components, at least two fans, and at least two isolation components. Heat dissipation channels are disposed inside the at least two heating components, and a fan is provided in each heat dissipation channel. An isolation component is coupled to an air inlet and/or an air outlet of the heat dissipation channel. The isolation component may isolate an air inlet or air outlet of each heating component from an air inlet or air outlet of another heating component, so as to avoid forming a loop between a heat dissipation channel in which a working fan is located and a heat dissipation channel in which a non-working fan is located.

Abstract: This application relates to a battery module, including a case, a first electrochemical cell layer, a second electrochemical cell layer, a middle separator, and an air supply unit. A main air duct, a first secondary air duct, and a second secondary air duct are disposed in the middle separator. The main air duct penetrates the middle separator. A first ventilation hole and a second ventilation hole are disposed on the case. In this application, by using the middle separator in the battery module, heat dissipation effect of air intake on three sides and air exhaust on one side may be implemented, and a cooling capability for the first electrochemical cell layer and the second electrochemical cell layer may be improved, thereby reducing a temperature difference of the battery module, and improving a service life of the battery module. This application further relates to a transportation means equipped with the battery module.

Abstract: An energy storage system includes N battery racks and at least two temperature control systems. The at least two temperature control systems are configured to control temperatures of the N battery racks. Two different temperature control systems in the at least two temperature control systems are configured to respectively control temperatures of two different battery racks of the battery racks. Different temperature control systems are independently disposed.

Abstract: An energy storage device includes a first cell, a second cell, and an air channel mechanical part. The first cell and the second cell are disposed outside the air channel mechanical part and are sequentially arranged between the air inlet end and the air outlet end, the air channel mechanical part includes a first air channel region and a second air channel region, the first air channel region is disposed correspondingly with the first cell, the second air channel region is disposed correspondingly with the second cell, and a heat dissipation area per unit volume of the second air channel region is greater than a heat dissipation area per unit volume of the first air channel region, to reduce a temperature difference between the second cell and the first cell.

Abstract: In accordance with an embodiment, an energy storage system includes energy storage container that a temperature control system, a battery cluster, and a controller. The controller determines a specified temperature of the temperature control system corresponding to a maximum difference between an available capacity of the battery cluster and a power consumption of the temperature control system as a target temperature. The determination of the specified temperature is based on: a correspondence between the available capacity of the battery cluster and a plurality of different specified temperatures in a specified temperature set of the temperature control system, and a correspondence between the power consumption of the temperature control system and the plurality of different specified temperatures in the specified temperature set of the temperature control system. The temperature control system is configured to adjust a temperature inside the energy storage container to the target temperature.