Abstract: An oil pump includes an oil outlet part, a hollow oil conveying pipeline, an oil pumping part, and a sealing part. An oil outlet opening is defined in the oil outlet part. The oil conveying pipeline is provided with a first liquid channel. A first oil pumping opening is defined in the oil pumping part. The oil pumping part is connected to the oil outlet part through the oil conveying pipeline. The oil pumping part, the oil conveying pipeline, and the oil outlet part are in communication with each other. The oil pumping part is provided with an oil pumping housing and a driving motor. The driving motor is positioned inside the oil pumping housing. The driving motor is connected to the oil pumping housing. The driving motor is a brushless motor. The sealing part is configured for sealing and covering the first opening to seal the first installation cavity.

Abstract: A multi-sided work light includes a light head system, a light body system and a magnetic valve control system, the light body system includes a side lighting assembly, a lamp body component and a power supply component, the light head system and the side lighting assembly are connected to the lamp body component, the power supply component is electrically connected to the side lighting assembly and the light head system, the magnetic valve control system is arranged to control operation of the light head system and the side lighting module through a rotation operation.

Abstract: A rotary folding lamp includes a base assembly, a folding mechanism, a control unit and a lamp assembly including a first lamp body, a second lamp body and a third lamp body, wherein the first lamp body is connected between the base assembly and the second lamp body, the third lamp body is arranged at a front end of the second lamp body, the folding mechanism is arranged at both ends of the first lamp body to control folding of the first lamp body and the second lamp body, and the control unit is electrically connected to the lamp assembly.

Abstract: This application provides a non-coplanar parallel resistance-reducing circuit structure, including a first circuit layer, a first insulating layer stackedly fixed to the first circuit layer, a second circuit layer stackedly fixed to the first insulating layer, a first electroplated copper layer attached and fixed to a side of the first circuit layer away from the first insulating layer and a second electroplated copper layer stackedly fixed to a side of the second circuit layer away from the first insulating layer. The circuit structure further includes one or more via holes running through ends of the first circuit layer, the first insulating layer and the second circuit layer in sequence, and a wall of the via hole is copper-plated to enable parallel connection of the first circuit layer with the second circuit layer.

Abstract: The present disclosure provides a composite board material and a flexible printed circuit. The composite board material includes a first material layer, and two second material layers attached to top surface and bottom surface of the first material layer opposite to each other, respectively. The first material layer is bonded to the two second material layers by adhesive layers. The first material layer includes at least one sublayer, and a material of the at least one sublayer includes polyethylene terephthalate. A material of the two second material layers includes polyimide. In this composite board material, polyethylene terephthalate material functions as inner layer(s), and polyimide material functions as outer layers. In this way, the flatness, hardness, and cost of materials can be balanced, thereby making the obtained flexible printed circuit adaptive to various application scenarios and improving the cost performance of the products.

Abstract: The present disclosure discloses a circuit board including a substrate layer and a conductive layer attached to one side of the substrate layer, the conductive layer being divided into a copper-plated area and a non-copper-plated area adjacent to the copper-plated area, the conductive layer having a greater thickness in the copper-plated area than in the non-copper-plated area, a boundary pattern being formed at the demarcation between the copper-plated area and the non-copper-plated area. In the direction from the non-copper-plated area toward the copper-plated area, the distance between the border pattern from the middle outward and the edge of the corresponding side of the non-copper-plated area gradually decreases. When the platen roller reaches the boundary pattern position, the air can be squeezed from the middle to both sides along the boundary pattern, thus reducing the air bubbles at the junction of copper-plated and non-copper-plated areas.

Abstract: The present disclosure discloses a circuit board including an intermediate layer and two protective layers wrapped on opposite sides of the intermediate layer, the intermediate layer including a substrate layer in the middle, the substrate layer having a through hole, wherein the intermediate layer further includes a first line layer and a second line layer respectively provided on opposite sides of the substrate layer, a first overlay layer and a second overlay layer respectively provided on opposite sides of the substrate layer and a guide member embedded in the through hole and connecting the first and second line layers, the first line layer being embedded in the first overlay layer and the second line layer being embedded in the second overlay layer. The flexible printed circuit of the present disclosure can avoid the risk of dry film breakage when laminating the overlay film and hole breakage defect when etching.

Abstract: Disclosed is a combined process for preparing zirconium oxide, methyl chlorosilane and/or polycrystalline silicon and a combined system comprising: preparing zirconium oxide by using zircon sand, carbon, chlorine gas, silicon, and hydrogen chloride as raw materials, the products separated during preparing zirconium oxide include gas phase products and liquid phase products, methyl chlorosilane is prepared from the gas phase separated during preparing zirconium oxide, and polycrystalline silicon is prepared by using the liquid phase products as raw materials.

Abstract: The disclosure discloses a circuit board, as well as a backlight module and a display device including the circuit board. The circuit board includes a copper exposure region which is covered with a conductive ink. By means of the copper exposure region and the conductive ink thereon, the function of conducting electrostatic charges for the circuit board can be realized at low cost in high efficiency, thereby reducing the risk of subjecting the electrical elements on the circuit board to electrostatic breakdown.

Abstract: The disclosure discloses a circuit board, as well as a backlight module and a display device including the circuit board. The circuit board includes a copper exposure region which is covered with a conductive ink. By means of the copper exposure region and the conductive ink thereon, the function of conducting electrostatic charges for the circuit board can be realized at low cost in high efficiency, thereby reducing the risk of subjecting the electrical elements on the circuit board to electrostatic breakdown.

Abstract: An autonomous or semi-autonomous vehicle and maneuvering method for a vehicle for overcoming an obstacle may include detecting the obstacle in front of and/or behind the motor vehicle by a detection device, moving the motor away from the obstacle to come to a standstill at a defined distance x, wherein the running direction of a wheel is facing towards the obstacle. The method may also include accelerating the motor vehicle toward the obstacle within a power-limiting range of a drive unit of the vehicle. The power-limiting range may be a power-limiting range of an electric motor powering the vehicle.

Abstract: Systems and methods are provided for an engine wherein one group of cylinders is active and a second group of cylinders is switchable, such that under low loads the second group of cylinders is deactivated, and under high loads the second group of cylinders is activated. Following deactivation of the second group of cylinders a throttling element in an intake line for the second group of cylinders is gradually closed. The closing of the throttling element may reduce pumping losses and thus increase engine efficiency.

Abstract: Methods and systems are provided for reducing pumping losses during a partial deactivation. In one example, a method may include applying negative pressure to a deactivated cylinder group to remove gases trapped therein while an activated cylinder group continues to combust.

Abstract: The present application discloses a miniature speaker. The miniature speaker includes a vibration system including a diaphragm, a voice coil for driving the diaphragm, and a suspension connected to the voice coil; a magnetic circuit system interacting with the voice coil for driving the diaphragm to radiate sound waves; and a frame for accommodating the vibration system and the magnetic circuit system. The suspension includes an outer edge connecting to the frame, an inner edge engaging with the voice coil, and a plurality of spring arms connecting the outer edge to the inner edge. The suspension includes a first isolative layer, a second isolative layer, and a conductive layer. The first isolative layer forms a mounting surface out of which at least part of the conductive layer exposes for connecting to the voice coil.

Abstract: Methods and systems are provided for reducing pumping losses during a partial deactivation. In one example, a method may include flowing vacuum to a deactivated cylinder group to remove gases trapped therein while an activated cylinder group continues to combust.

Abstract: Methods and systems are provided for an internal combustion engine having at least two cylinders configured in such a way that they form two groups, at least one cylinder of a first group being a cylinder which is operational in the event of a partial deactivation of the engine, and at least one cylinder of a second group being formed as a load-dependently switchable cylinder. An inlet-side throttle element is provided with at least one intake line of the switchable cylinder, by means of which the size of the flow cross section of the intake line can be varied, whereby the charge-air flow rate supplied to the deactivated cylinder in the event of a partial deactivation of the engine can be adjusted. Each outlet opening of a load-dependently switchable cylinder is equipped with a partially variable valve drive, with an outlet valve which opens or shuts off the outlet opening.

Abstract: An autonomous or semi-autonomous vehicle and maneuvering method for a vehicle for overcoming an obstacle may include detecting the obstacle in front of and/or behind the motor vehicle by a detection device, moving the motor away from the obstacle to come to a standstill at a defined distance x, wherein the running direction of a wheel is facing towards the obstacle. The method may also include accelerating the motor vehicle toward the obstacle within a power-limiting range of a drive unit of the vehicle. The power-limiting range may be a power-limiting range of an electric motor powering the vehicle.