Abstract: The disclosure provides preparation methods of a solid-state battery and a battery array, and a solid-state battery. The above preparation method adopts powder sintering 3D printing manufacturing technology, which can increase the interfacial contact among different materials, and improve the contact interface between the electrode and the solid-state electrolyte, thereby obtaining a better ion conduction path. Through printing, annealing and cooling layer by layer, the internal stress, the interlayer effect and the interface effect are eliminated, and defects are reduced, which makes the structure of the prepared positive electrode, negative electrode, solid-state electrolyte and the entire solid-state battery more stable.

Abstract: A condenser for drying equipment, and drying equipment. The front side wall of a hollow chamber of the condenser includes a first arc structure, a second arc structure, and a flow dividing structure; the flow dividing structure is opposite to an air inlet; the left and right side walls of the hollow chamber are arc-shaped; the flow dividing structure can divide the gas entering from the air inlet into a first airflow and a second airflow, and enable the first airflow and the second airflow to enter the first arc structure and the second arc structure along a tangential direction of the first arc structure and second arc structure, to provide centrifugal and rotational airflow. Since the first airflow and the second airflow rise centrifugally and rotationally, the strokes of the first airflow and the second airflow in a condenser body are lengthened, thus improving the cooling effect.

Abstract: Disclosed is a photo-curing 3D printer comprising a storage unit for accommodating liquid photosensitive resin and a light source disposed underneath the storage unit. Wavelength of light rays emitted by the light source is 420˜460 nm. A bottom of the storage unit is configured to display a pattern composed of a shielding area for shielding the light rays and a transmissive area for passing-through of the light rays. In addition, the disclosure provides a 3D printing method. Due to the limitations of photopolymerization initiators and the LCD display unit currently available, it was unexpected to complete photo-curing 3D printing with a light source with 420˜460 nm wavelength. It is unexpected that a photo-curing 3D printer as provided in the present application not only can ensure the service life of the LCD display unit but also that the curing efficiency is significantly higher than existing devices.

Abstract: Disclosed is a photo-curing 3D printer comprising a storage unit for accommodating liquid photosensitive resin and a light source disposed underneath the storage unit. Wavelength of light rays emitted by the light source is 420˜460 nm. A bottom of the storage unit is configured to display a pattern composed of a shielding area for shielding the light rays and a transmissive area for passing-through of the light rays. In addition, the disclosure provides a 3D printing method. Due to the limitations of photopolymerization initiators and the LCD display unit currently available, it was unexpected to complete photo-curing 3D printing with a light source with 420˜460 nm wavelength. It is unexpected that a photo-curing 3D printer as provided in the present application not only can ensure the service life of the LCD display unit but also that the curing efficiency is significantly higher than existing devices.

Abstract: This utility model provides a type of heat-sink surface-mounted LED luminescent tube, comprising a first electrode pin used as a heat sink, and an LED chip, wherein the first electrode pin is composed of a first horizontal section electrode, a second horizontal section electrode and a protrusion heat sink, which are connected sequentially; the LED chip is mounted on the first horizontal section of the first electrode pin, a first electrode of the LED chip is connected with the first horizontal section, and a second electrode of the LED chip is connected with the third horizontal section through a conducting wire. When the actual patch is welded to this new utility model, the heat sink formed by the protrusion will penetrate a reserved copper hole in the circuit board to be connected with external metal elements, which radiates heat.

Abstract: An LED spotlight includes a light body, a base securely fixed to the light body, and a light cover fixedly connected to the light body. A power supply is disposed on an inside of the base. The light body includes a dissipating heat body firmly connected to the base, a dissipating heat base plate displaced on the dissipating heat body and coupled to the power supply, a plurality of LED lamps fixedly connected to the dissipating heat base plate, and an insulation lamp cup made of glass or transparent plastic disposed over the LED lamps. The lamp cup is provided with at least one lens or reflective bowl, and the lamp cup is integrated with the at least one lens or reflective bowl. The LED spotlight in accordance with the present invention has a simple structure and a low cost, and is safe to use.