Abstract: The present disclosure relates to a rotor module, and more specifically, to a rotor module with a cooling structure. The rotor module with a cooling structure of the present disclosure may include a rotor core formed in a cylindrical shape in which a hollow hole passing through a central portion is formed, a cooling flow path unit in which a cooling fluid flows and which cools the rotor core, and an end plate provided so that one surface is in contact with both ends of the rotor core in an axial direction and having oil storage, spreading, and transmission functions at both ends of the rotor core. Accordingly, the rotor module with the cooling structure of the present disclosure uses oil cooling the existing end coil to directly cool a rotor assembly and further cools a stator, thereby effectively resolving heat generation and demagnetization issues.

Abstract: The present invention relates to a cooling system applied to a motor for cooling components of the motor, and more particularly, to an end coil cooling system for a motor configured to improve the cooling performance of end coils among the coils wound on a stator of the motor.

Abstract: A wafer lapping device may include a lower platen, an upper platen disposed on the lower platen in conjunction with the lower platen to lap a wafer, a cylinder configured to move the upper platen up and down via a rod, a detection target part configured to descend together with the upper platen, a plurality of position sensors configured to detect the detection target part that descends together with the upper platen to detect a descending position of the upper platen, a displacement sensor configured to detects the detection target part that descends together with the upper platen to detect a descending displacement of the upper platen, and a controller configured to control a descending speed of the upper platen based on the descending displacement of the upper platen and the descending position of the upper platen.

Abstract: Provided is a motor cooling structure including: a motor housing having a hollow cylinder shape; a stator core accommodated in the motor housing, and including a plurality of concentric ring-shaped split cores stacked therein; and a cooling pipe receiving cooling fluid flowing from the outside, and providing cooling fluid to the stator core, wherein the split core includes a plurality of passage parts which are recessed in an outer circumference and through which the cooling fluid flows, and a plurality of press-fit parts protruding from the outer circumference, and the passage parts communicate with each other not to form a straight line when the plurality of split cores are stacked.

Abstract: The present disclosure relates to a rotor module applied to a vehicle. The rotor module with a cooling structure comprises a rotor core disposed in a hollow cylindrical shape, a rotor shaft fixedly inserted into a center of the rotor core and rotates about a center axis of the rotor core and a cooling flow path unit disposed in the rotor core and the rotor shaft and through which cooling oil flows, wherein the cooling flow path unit includes at least one first flow path recessed in a groove shape in an outer surface of the rotor shaft and extending in an axial direction of the rotor shaft.

Abstract: The present disclosure relates to a housing assembly applied to an off-axis (lay-shaft) type reducer. The housing assembly with an improved oil churning function to which a plurality of gears of a vehicle reducer are coupled comprises: a cover housing including one surface coupled to a differential gear and a first counter gear, a middle housing including one surface that is coupled to an input gear and a second counter gear coupled to the first counter gear, wherein the one surface is provided to face the one surface of the cover housing, and lower end communicates with a sump space and an oil guide part machined and disposed on the cover housing and the middle housing to guide a flow direction of churned oil.

Abstract: A display device and an electronic device are provided. The display device includes, a substrate, a plurality of light-emitting elements on the substrate and each including a first electrode, a light emitting layer, and a second electrode, an encapsulation film on the plurality of light emitting elements, a color filter layer on the encapsulation film, and a first pixel and a second pixel each including the plurality of light emitting elements, wherein the first electrodes of each of the first pixel and the second pixel include a plurality of concave portions on an upper surface of each of the first electrodes and having a concave shape toward the substrate, and a pattern of the plurality of concave portions included in the first electrode of the first pixel is different from a pattern of the plurality of concave portions included in the first electrode of the second pixel.

Abstract: The objective of the present disclosure is to provide an oil-cooled drive motor including a replaceable oil filter equipped with an opening/closing device on the oil flow path to prevent oil leakage during oil filter replacement. More specifically, the disclosure provides an oil-cooled drive motor including a replaceable oil filter equipped with an inlet opening/closing device capable of sealing the oil inlet for supplying oil to the oil filter space during oil filter replacement, and an outlet opening/closing device capable of blocking the oil flow path through which filtered oil flows. Particularly, the disclosure provides an oil-cooled drive motor including a replaceable oil filter wherein the inlet opening/closing device and the outlet opening/closing device are configured to open or block the oil inlet and the oil flow path in conjunction with the rotation of the oil filter during replacement.

Abstract: The disclosure relates to a rotor assembly, and more particularly to a rotor assembly with the cooling structure. The rotor assembly with the cooling structure according to the disclosure has been conceived to solve the foregoing problems, and the disclosure rotor assembly with the cooling structure has effects on cooling a rotor core more intensively as a cooling bar formed extending in an axial direction is inserted into the rotor core, reducing the torque loss of a motor significantly as the demagnetization of a magnet embedded in the rotor core is decreased, and cooling the rotor core without using the interior of a shaft when a motor shaft and a drive shaft have the same axis like an on-axis casing.

Abstract: The present disclosure relates to a lubricant supply system, and more specifically, to a lubricant supply system applied to a motor for a vehicle. The lubricant supply system of the present disclosure includes a carrier that fixes the carrier bearing adjacent to the needle bearing to the motor housing, secures the flow path along which lubricant is supplied to one surface of the carrier, and includes the oil guide that stores the supplied lubricant during high-speed rotation and supplies the lubricant to other parts during low-speed rotation, thereby minimizing forced lubrication compared to conventional lubricant supply systems and smoothly supplying oil to the needle bearing and the carrier bearing even during high-speed rotation using a centrifugal force and wind power generated naturally from the on-axis rotors.

Abstract: A method and an apparatus for registering motion of a user tracked by heterogeneous sensors are disclosed. The method includes initializing the first sensor so that an origin of a first sensor coordinate system is adjacent to an origin of a device coordinate system, wherein the device coordinate system is a three-dimensional coordinate system with a current position of the device as the origin; and determining a calibration parameter for transforming coordinates of the plurality of feature points according to the first sensor coordinate system to coordinates according to a second sensor coordinate system, based on the position and orientation of the device in the second sensor coordinate system.

Abstract: The present disclosure relates to a lubricant supply system, and more specifically, to a lubricant supply system applied to a motor for a vehicle. According to the lubricant supply system of the present disclosure, by including the flow path along which lubricant is supplied to the shaft, the oil spreader coupled to the shaft, and the carrier that receives oil dispersed from the oil spreader and inserting the pin that stores and supplies lubricant into the carrier, it is possible to minimize forced lubrication compared to conventional ones and allow oil to be smoothly supplied to a needle bearing and a carrier bearing even during high-speed rotation using a centrifugal force and wind power generated naturally by an on-axis rotors.

Abstract: A method and an apparatus for registering motion of a user tracked by heterogeneous sensors are disclosed. The method includes initializing the first sensor so that an origin of a first sensor coordinate system is adjacent to an origin of a device coordinate system, wherein the device coordinate system is a three-dimensional coordinate system with a current position of the device as the origin; and determining a calibration parameter for transforming coordinates of the plurality of feature points according to the first sensor coordinate system to coordinates according to a second sensor coordinate system, based on the position and orientation of the device in the second sensor coordinate system.

Abstract: The present disclosure relates to an oil suction device applied to a sump space of a vehicle. According to the oil suction device of the present disclosure, by adding the flow control unit for controlling suction resistance of oil suctioned to the supply pipe, it is possible to reduce a difference in oil level, reduce no-load loss and loss during rotation of the rotor by reducing a rise in oil level of the end plate, improve cooling performance of the motor by keeping the sump space from running out of oil, and at the same time, maintain the reduction effects for reducing the cost and reducing the packing size and weight, which are the trend of conventional motors.

Abstract: Disclosed is a cooling structure of an electric motor, and more particularly to a stator core having a cooling structure to cool a central portion of the stator core of a motor. An aspect of the disclosure is to provide a stator cooling structure of the motor to efficiently cool the central portion of the stator core of the motor.

Abstract: A display device includes a panel layer including a display area, a light-blocking layer above the panel layer, and defining a light-blocking area surrounding at least a portion of the display area, and an input-sensing layer between the panel layer and the light-blocking layer, defining a sensing area, and including a first conductive layer including a first constant voltage electrode layer, at least a portion of which being in a non-light-blocking area between the light-blocking area and the display area, a second conductive layer including a second constant voltage electrode layer, at least a portion of which being in the non-light-blocking area, and electrically contacting the first constant voltage electrode layer through first through holes in the non-light-blocking area, and a sensing-insulating layer between the first conductive layer and the second conductive layer, and defining the first through holes, wherein distances between adjacent first through holes vary.

Abstract: Disclosed are a secondary battery and a secondary battery case. According to one aspect of the present invention, provided is a case for a secondary battery including: a first recess part having a recessed shape; a second recess part opposite the first recess part and having a recessed shape; a circumferential part configured to surround a circumference of each of the first recess part and the second recess part when the case is unfolded; and a connection part provided between the first recess part and the second recess part to connect the first recess part to the second recess part, wherein, when the case is unfolded, the connection part includes: a first connection surface inclined in a first direction from one end of the first recess part; and a second connection surface inclined in the first direction from one end of the second recess part.

Abstract: A versatile space telescope for quantum key distribution and adapted for interfacing with a spacecraft and an instrument module. The telescope includes diamond turned aluminum mirrors at its entrance and exit, adjacent the spacecraft and instrument module, respectively.

Abstract: Methods, apparatus and systems are described that relate to in-situ and in-process assembly of segmented optical component with high accuracy. One example method for assembling an optical component with multiple segments includes positioning the multiple segments to an initial state conforming to an alignment or positioning requirement, measuring positions of the multiple segments at the initial state, initiating a fusing process to fuse the multiple segments of the optical element together, measuring the positions of the multiple segments after commencement of the fusing process, and determining whether a change in the positions of the multiple segments has occurred that causes a deviation from the initial state. Upon a determination that the deviation is not within a tolerance value, the method includes adjusting a position of at least one of the multiple segments to maintain the deviation within the tolerance value.

Abstract: A display device includes a panel layer including a display area, a light-blocking layer above the panel layer, and defining a light-blocking area surrounding at least a portion of the display area, and an input-sensing layer between the panel layer and the light-blocking layer, defining a sensing area, and including a first conductive layer including a first constant voltage electrode layer, at least a portion of which being in a non-light-blocking area between the light-blocking area and the display area, a second conductive layer including a second constant voltage electrode layer, at least a portion of which being in the non-light-blocking area, and electrically contacting the first constant voltage electrode layer through first through holes in the non-light-blocking area, and a sensing-insulating layer between the first conductive layer and the second conductive layer, and defining the first through holes, wherein distances between adjacent first through holes vary.