Abstract: A high-power light-emitting diode is made by monolithically integrating multiple miniature light-emitting chips for improved operation voltage, light extraction efficiency and device yield. The light emitting diode includes a plurality of monolithically integrated mini chips, each of the mini chips has a mini n-contact formed on an n-type structure, a mini p-ohmic contact formed on a p-type structure, and a mini light emitting area defined by the mini p-ohmic contact. An n-bridge metal electrically connecting the mini n-contact of the mini chips to an n-bonding pad, the n-bridge metal is formed on the p-type structure and on sidewall of an opening in the p-type structure and on the active-region.

Abstract: A superhydrophobic polypropylene porous film, including a polypropylene porous film substrate, titanium dioxide layers and a surface modifier layer, is disclosed. The titanium dioxide layers are deposited on the surface of the polypropylene porous film substrate by atomic deposition technology; a surface modifier is coated on the titanium dioxide layers; hydrophobic bonds are formed between the titanium dioxide layers and the surface modifier layer; the superhydrophobic polypropylene porous film has a water contact angle greater than 150 degrees, a rolling angle less than 10 degrees, an aperture of 0.1-0.4 ?m, a porosity of 50%-80%, a tensile strength of 30-50 MPa, and an elongation at break of 10%-30%.

Abstract: Battery swapping equipment for an electric vehicle and a positioning method for battery swapping equipment. The battery swapping equipment includes: an unlocking mechanism configured to unlock a battery pack locked onto a fast swapping bracket of the electric vehicle; an image collection module to collect a first actual image containing the lock base during an unlocking process of the battery pack; a storage module configured to store a first standard image collected by the image collection module when the battery swapping equipment is located in a battery swapping position, the first standard image including the lock base; a positioning judgement module to judge whether the battery swapping equipment is located in the battery swapping position according to the first actual image and the first standard image; if not, generating a first moving instruction according to a judged result; a moving mechanism to move according to the first moving instruction.

Abstract: A caliper cover assembly and a production method thereof are provided. The caliper cover assembly includes a first bracket, a second bracket, and buckles; the first bracket and the second bracket are respectively integrally formed with the caliper cover body; the first bracket and the second bracket are symmetrically disposed, and are respectively provided with an installation hole; the buckles are provided in two; the two buckles are symmetrically and separately disposed on the first bracket and the second bracket, and fixedly connected with the first bracket or the second bracket through bolts passing through the installation holes respectively. Therefore, effects of a stable structure, a thermal conductivity, a convenient installation and a safety in use are achieved.

Abstract: A locking device includes a lock base. The lock base includes a lock body, a surface of the lock body being provided with a lock groove recessed towards the interior of the lock body, the lock body being internally provided with a lock tongue groove and a lock tongue movably mounted in the lock tongue groove that is in connection with the lock groove; a lock connecting rod movably connected to the lock base through the lock tongue and including a rod member, the rod member driving the lock tongue to move in the lock tongue groove; and a lock shaft including a shaft seat and a shaft rod perpendicularly arranged to a surface of the shaft seat, the shaft rod being inserted into the lock groove of the lock base to perform locking. A fixing seat and an electric vehicle comprising the locking device are disclosed.

Abstract: An air disinfection device includes: a housing including an inlet port and a disinfection chamber that has a shape of a frustum; and a disinfection head disposed in the inlet port and including a fan for taking air into the housing, a filter for filtering the air; and a light source for generating disinfection light that forms a light frustum and disinfects the air in the disinfection chamber. The air disinfection device further includes a power source that provides electrical power for the disinfection head. The light source is arranged so that the light frustum is coaxial with the chamber frustum, and the light and chamber frusta diverge along the same direction. The lateral surface of the light frustum can coincide with the inner lateral surface of the disinfection chamber and the entire portion of a space defined by the disinfection chamber is located within the light frustum.

Abstract: A large-particle spherical salt with a particle size of 400-950 ?m and a sphericity of 0.5-1.0 is disclosed, which overcomes the existing difficulty in this field for larger particle size as well as higher sphericity. A preparation method of the large-particle spherical salt is also disclosed, wherein in one preparation process, 2% of gum arabic (based on the mass percentage of solute sodium chloride in a sodium chloride saturated solution) is added, and under conditions of an evaporating temperature of 60° C. a stirring rate of 350 rpm, and an evaporating time of 8 hours, a large-particle spherical salt with a particle size of 921.593 ?m and an average sphericity of 0.904 is successfully prepared. The large-particle spherical salt prepared by the method has a uniform particle size distribution and good appearance, can be combined with other substances, adding some extra value to the salt. Meanwhile, the large-particle spherical salt prepared by the method has a high safety grade (e.g.

Abstract: Provided is a lock mechanism, wherein the lock mechanism includes a lock base, the lock base is provided with an opening and a cavity extending from the opening, the opening is used for the lock shaft mounted to the battery pack to enter the cavity, the lock mechanism further includes: a lock assembly, the lock assembly is connected to one side of the lock base opposite the lock shaft, the lock assembly is moveable relative to the lock base, and the side of the lock base opposite the lock shaft extends into the cavity or exits the cavity; wherein, the lock assembly is capable of preventing the lock shaft from exiting the cavity from the opening when the lock assembly extends into the cavity; the lock assembly is capable of allowing the lock shaft to exit the cavity from the opening when the lock assembly exits the cavity.

Abstract: A heat-dissipating car caliper cover comprising a cover body and a fixing member for fixing the cover body to a car caliper, wherein a first arc-shaped side plate is provided on an outer side of the cover body, a second arc-shaped side plate is provided on an inner side of the cover body, the fixing member is provided on the first arc-shaped side plate, a heat transmission assembly is provided on the first arc-shaped side plate, and the heat transmission assembly comprises an elastic pressing sheet and a silicone sheet provided on the elastic pressing sheet; and when the cover body is fixed to the car caliper, the elastic pressing sheet can contact the silicone sheet with a pump body outer side wall of the car caliper, and conducts heat to the cover body for heat dissipation.

Abstract: Disclosed is a mounting platform, comprising: a tray and a fixed plate, the tray is used for carrying a battery, and the tray is provided on the fixed plate and can move horizontally in a first direction relative to the fixed plate; a first guide fork is provided on one side of the fixed plate and the first guide fork can move horizontally in a second direction perpendicular to the first direction; a second guide fork is provided on one side of the tray, and the second guide fork can move horizontally in the second direction. Further provided is a control method, which is used for controlling the mounting platform above. The mounting platform can fit various models of vehicle batteries by providing the first guide fork and the second guide fork which can move in the second direction, thereby achieving universality of a battery replacement station.

Abstract: A battery side electrical connector. The battery side electrical connector including a second mounting seat, a second high-voltage assembly and a second low-voltage assembly, wherein the second high-voltage assembly and the second low-voltage assembly are configured to be inserted through the second mounting seat, the second high-voltage assembly includes a second high-voltage pole, the second mounting seat is provided with a high-voltage mounting hole, wherein the second high-voltage pole is configured to be inserted through the high-voltage mounting hole, wherein outer wall surface of the second high-voltage pole is provided with a positioning section which is used to limit the movement of the second high-voltage pole relative to the second mounting seat along axial direction of the high-voltage mounting hole. By means of the battery side electrical connector, the second high-voltage assembly can be prevented from hard damage.

Abstract: An electrical connection device. The electrical connection device comprises a vehicle side electrical connector comprising a first mounting seat, a first high-voltage assembly and a first low-voltage assembly; and a battery side electrical connector comprising a second mounting seat, a second high-voltage assembly and a second low-voltage assembly. The first high-voltage assembly comprises a first high-voltage pole, a flexible electrical connector and a high-voltage plug, wherein the first high-voltage pole includes an electrical contact end and a wiring end; wherein one end of the flexible electrical connector is in a floating electrical connection with the wiring end of the first high-voltage pole, the high-voltage plug is in a floating electrical connection with the other end of the flexible electrical connector.

Abstract: A pyrazolo[1,5-a]pyridine derivative, and a preparation method and medical use thereof are provided. The pyrazolo[1,5-a]pyridine derivative shown in general formula (I), a preparation method of the derivative, a pharmaceutically acceptable salt of the derivative, and use of the derivative or salt as a therapeutic agent, especially as a rearranged during transfection (RET) inhibitor, are provided.

Abstract: A vehicle side electrical connector. The vehicle side electrical connector comprises a first mounting seat, a first high-voltage assembly and a first low-voltage assembly; wherein the first high-voltage assembly comprises of a first high-voltage pole, wherein the first high-voltage pole includes an electrical contact end and a wiring end, wherein the first high-voltage assembly comprises a flexible electrical connector and a high-voltage plug, one end of the flexible electrical connector is in a floating electrical connection with the wiring end of the first high-voltage pole, and the other end of the flexible electrical connector is in a floating electrical connection with the high-voltage plug; the flexible electrical connector adapts the relative displacement change in axial, radial and all directions between the first high-voltage pole and the high-voltage plug through a flexible cavity. By means of the vehicle side electrical connector, the first high-voltage assembly can be prevented from hard damage.

Abstract: A light emitting device with on-chip optical power readout includes a light emitting mesa and a light detecting mesa formed adjacent to each other on the same substrate of a chip, and a portion of the light emitted from the light emitting mesa is transmitted to the light detecting mesa at least through the substrate. The light emitting mesa and the light detecting mesa have exactly the same epitaxial structure and can be electrically isolated from each other by an insulation layer, or an airgap formed therebetween, or by ion implantation. The light emitting mesa and the light detecting mesa can also share an n-type structure and a common n-electrode while having their own p-electrode, respectively.

Abstract: A display screen lighter and a display screen detection device are provided.

Abstract: A movable battery replacing platform includes a travel-driving portion used for driving the movable battery replacing platform to move on the ground; a lifting portion mounted on the travel-driving portion, for lifting a battery during the replacement of the battery; and a battery mounting portion mounted on the top of the lifting portion, for placing a battery to be replaced or a replaced battery. The battery mounting porting is provided with a battery replacing device. The device can use an unlocking device to unlock a battery locked on the bottom of an electric vehicle, automatically aligning an unlocking point of a battery locking mechanism and realizing automatic unlocking in the movement. The angle of an upper board relative to the battery unlocking position can be adjusted by a movement actuating device, so that the unlocking point of the battery can automatically fit where the movable battery replacing platform remains still.

Abstract: A movable battery replacing platform includes a travel-driving portion used for driving the movable battery replacing platform to move on the ground; a lifting portion mounted on the travel-driving portion, for lifting a battery during the replacement of the battery; and a battery mounting portion mounted on the top of the lifting portion, for placing a battery to be replaced or a replaced battery. The battery mounting porting is provided with a battery replacing device. The device can use an unlocking device to unlock a battery locked on the bottom of an electric vehicle, automatically aligning an unlocking point of a battery locking mechanism and realizing automatic unlocking in the movement. The angle of an upper board relative to the battery unlocking position can be adjusted by a movement actuating device, so that the unlocking point of the battery can automatically fit where the movable battery replacing platform remains still.

Abstract: A movable battery replacing platform includes a travel-driving portion used for driving the movable battery replacing platform to move on the ground; a lifting portion mounted on the travel-driving portion, for lifting a battery during the replacement of the battery; and a battery mounting portion mounted on the top of the lifting portion, for placing a battery to be replaced or a replaced battery. The battery mounting porting is provided with a battery replacing device. The device can use an unlocking device to unlock a battery locked on the bottom of an electric vehicle, automatically aligning an unlocking point of a battery locking mechanism and realizing automatic unlocking in the movement. The angle of an upper board relative to the battery unlocking position can be adjusted by a movement actuating device, so that the unlocking point of the battery can automatically fit where the movable battery replacing platform remains still.

Abstract: Provided are a battery holder, a power transfer device, an electric vehicle and an installation method for electric vehicle. The battery holder includes a fixing bracket, a lock mechanism and a plurality of supporting devices, the lock mechanism is fixed on the fixing bracket, the supporting device is fixed on one side of the fixing bracket facing the battery pack. The electric vehicle includes the battery holder as described above. In the present invention, the weight of the battery pack can be simultaneously distributed on the plurality of supporting devices and the lock mechanism, the force of the fixing bracket is more evenly, the force applied by the battery pack to the lock mechanism is reduced, the force concentration of the lock mechanism on the fixing bracket is prevented, the service life of lock mechanism is improved, and improve the connection strength between battery pack assembly and battery holder.