558 results about "Foreign substance" patented technology

A clothing dryer, and a method performed thereby, to identify the degree of clogging of a filter for collecting foreign substances generated according to a drying operation in a clothing dryer are provided. The clothing dryer includes a display, an expansion valve provided in a heat pump, and a controller identifying the degree of clogging of a filter.

An automatic inspection system for detecting defects in ultra-thin glass is disclosed that includes an edge inspection module for inspecting for chipping and wedge defects caused during laser cutting of the ultra-thin glass into cell units, a surface inspection module for inspecting scratches, cracks, and foreign substances on a surface of the ultra-thin glass, a phase measurement beam deflection (PMD) module for inspecting the surface of the ultra-thin glass for smudges and depressions through phase change measurement, and a Pt-derived ultra-fine defect inspection module for inspecting the ultra-thin glass for Pt-derived ultra-fine defects.

To provide a composition for chemical mechanical polishing and a polishing method that can effectively suppress contamination of foreign matters during manufacturing and can polish the surface of a semiconductor substrate to a flat surface.SOLUTION: The composition for chemical mechanical polishing according to the present invention contains (A) abrasive grains including silica and (B) a liquid medium, in the (A) component, when the peak intensity of 490 cm-1 derived from a 4-membered ring measured by Raman spectroscopy is x and the peak intensity of 800 cm-1 derived from a multi-membered ring measured by Raman spectroscopy is y, x / y is 4.5 to 6.0, and the (A) component has at least one functional group selected from those represented by the following general formulae (1) to (4), -SO3-M+ (1), -COO-M+ (2), -NR1R2 (3), -N+R1R2R3M- (4).SELECTED DRAWING: None

A wireless power transmitting device according to an embodiment of the present specification transmits wireless power to a wireless power receiving device, and includes a power conversion circuit including a primary coil for transmitting the wireless power to the wireless power receiving device and a communication / control circuit for communicating with the wireless power receiving device and controlling the power conversion circuit, wherein, to detect foreign substances between the wireless power receiving device and the wireless power transmitting device, the communication / control circuit stops the transmission of the wireless power for a slot time, detects the foreign substances on the basis of a change in the voltage or current of the primary coil within the slot time, and sets the slot time to start from a point in time when the current of the primary coil is 0.

Provided is a bathing assistance device for an infant, wherein the infant's resistance due to the strong impact noise generated when using a conventional bathing aid can be eliminated, armrests can operate smoothly, the skin of the infant can be prevented from being caught or compressed in a gap between the upper body and the armrests, by making a play means removable, the infant can replace the play means with his / her preferred safe play means or purchase only the bathing assistance device separately, foreign substances such as washing water and feces which flow into the inside of a tread can be quickly discharged, the bathing assistance device can be easily stored and dried in a bathroom, a falling accident in which the infant slips and falls on an upper portion of a lower body part can be prevented.

The invention relates to the technical field of conveying equipment, and particularly discloses a guide and guard assembly guide wheel intelligent suspension conveying system which comprises a guide frame, a guide groove is formed in the inner side of the guide frame, and a conveying assembly is arranged on the inner side of the guide frame groove and comprises a driving rod rotationally connected with the inner side of the guide groove. The outer surface of the driving rod is fixedly connected with a driving wheel, and the upper side of the outer surface of the driving wheel is rotationally connected with a traction suspension cable. By arranging the hanging assembly, the locking buckles and the supporting pipes, multiple sets of guide wheels can be conveyed at the same time, then the conveying efficiency of the guide wheels can be improved, due to the fact that the hanging conveying system is arranged on the lower side of the workshop ceiling, occupation of conveying equipment on the internal space of a workshop can be effectively reduced, and in the guide wheel hanging conveying process, the conveying efficiency is improved. And machining chippings left on the surface of the guide wheel can be shaken off, so that residual foreign matters on the surface of the guide wheel can be reduced to improve the subsequent machining precision.

A cleaner includes a case having an internal path formed therein and an intake motor to draw in air containing foreign substances into the case. The cleaner includes a dust collector on the internal path of the case through which the drawn air flows and rotatable to separate the foreign substances from the drawn air by rotating the drawn air, and a rotation body disposed further downstream than the dust collector in an airflow direction of the drawn air, to rotate by the air passing through the dust collector, and to rotate the dust collector by being combined with the dust collector.

The present disclosure relates to a method of controlling a cleaner system, the method including a differential pressure detection step of detecting a differential pressure between air before passing through a prefilter provided in a cleaner and air after passing through the prefilter, and a cleaner foreign substance removal step of cleaning the prefilter when the cleaner is coupled to the cleaner station when the differential pressure detected in the differential pressure detection step is equal to or higher than a preset reference differential pressure, such that when a degree of contamination of the prefilter is high regardless of the usage period, the degree of contamination may be automatically detected and notified to a user, and the prefilter may be automatically cleaned.

Disclosed is a strainer having a non-powered cleaning function. The present invention enables filtration of foreign substances from fluid by disposing a cylindrical filter mesh inside a main body of the trainer, such that the fluid from an inlet pipe flows through the filter mesh toward an outlet pipe. The present invention also enables cleaning of the filter mesh by disposing a central shaft of a scraper at the center of the filter mesh, and rotating the central shaft such that brushes connected thereto scrape off foreign substances collected on the filter mesh.

A charging device includes: a power transmission coil configured to transmit electric power to a terminal device; a position detection coil that includes a plurality of coils, and is configured to detect a position of a power reception coil of the terminal device; a foreign substance detection coil that includes a plurality of coils corresponding to the plurality of coils of the position detection coil; and a processor configured to supply electric power to a first coil among the plurality of coils of the foreign substance detection coil in a state in which the terminal device is not placed on a placement part, to determine that a conductive foreign substance is present on the placement part in a case in which a variation amount of induced voltage generated in the position detection coil is equal to or larger than a predetermined threshold.

A vacuum cleaner includes a main body, a suction motor in the main body, an extension pipe, a suction head, connected to the suction motor through an extension pipe and including a suction port through which the foreign substances are sucked, a brush inside the suction head, a brush motor configured to rotate the brush, a pressure sensor configured to detect a pressure of air flowing through the suction port, a memory configured to store reference data used to identify the type of surface to be cleaned and a learning model to update the reference data, and a controller configured to determine a suction pressure based on the detected pressure and an atmospheric pressure, and identify the type of surface using the determined suction pressure, a load of the brush motor, and the stored reference data, and to update the stored reference data based on a predetermined update condition.

Disclosed are an apparatus configured for capturing debris generated during laser notching and a debris capture method using the same, and more particularly an apparatus for capturing debris generated when a laser beam is radiated to an electrode supplied to a cylindrical rotary drum so as to be brought into tight contact with an outer surface of the cylindrical rotary drum to notch an edge of the electrode, the apparatus including a debris capture unit having an open surface located so as to face a notched portion of the electrode, the debris capture unit being configured to capture debris, a debris transfer unit located under the debris capture unit, the debris transfer unit being configured to transfer the captured debris, a blowing unit located above the debris capture unit, the blowing unit being configured to blow air downward, and a scrap guide unit configured to guide scrap, generated by notching, downward and outside of the debris capture unit, and a debris capture method using the same.

According to one embodiment of the present invention, a wheel bearing arrangement can be provided which serves to rotatably attach and support a vehicle wheel to the vehicle body.A wheel bearing arrangement according to an embodiment of the present invention can be configured to include: • a wheel hub with a wheel mounting flange and a receiving space for receiving rolling elements of a constant velocity joint, which is formed at a vehicle body-side end section; • at least one inner ring which is press-fitted to an outer circumferential surface of the wheel hub; • an outer ring with a vehicle body-side mounting flange; • a plurality of rolling elements which are configured to rotatably support the wheel hub with respect to the outer ring; • a boot mounting ring which is press-fitted to an outer circumferential surface of the wheel hub; and • a rubber boot which prevents the ingress of foreign substances into the receiving space of the wheel hub.According to an embodiment of the present invention, the boot fastening ring can be configured to be fitted to the outer circumferential surface of the wheel hub with an interference fit, wherein the engagement amount t is greater than a minimum engagement amount a, which is calculated by the following [Formula 1]: a=−0.00005×D+0.0345[D: inner diameter of the boot fastening ring(270)].

To prevent attachment of a foreign substance to a photoconductor drum.SOLUTION: An image forming apparatus forming an image on a recording material has: (i) an apparatus body that includes an ejection part provided with a first opening for ejecting the recording material, and a wall provided on the opposite side of the ejection part with respect to the horizontal direction and provided with a second opening; (ii) a rotatable photoconductor drum that is arranged below the first opening and the second opening with respect to the vertical direction; and (iii) an exposed surface that is exposed toward a first communication path communicating between the first opening and the second opening. The image forming apparatus includes a receiving surface that projects from the exposed surface toward the first communication path and is directed upward in the vertical direction.SELECTED DRAWING: Figure 11

An air conditioner indoor unit is provided. The air conditioner indoor unit includes a filter and a self-cleaning assembly. The filter is configured to filter foreign matter in indoor air. The self-cleaning assembly is configured to remove foreign matter on the at least one filter. The self-cleaning assembly includes a first reel, a second reel, a cleaning brush reel, and a cleaning brush. The first reel is connected to one end of the filter, and the second reel is connected to the other end of the filter. The cleaning brush is installed on the cleaning brush reel and configured to clean foreign matter on the filter. The self-cleaning assembly further includes a position limiting portion and a stopper portion. The position limiting portion is connected to the cleaning brush reel. The stopper portion is provided on an inner wall of the base. The position limiting portion is configured to limit a rotation angle of the cleaning brush by engaging with the stopper portion.

A vacuum cleaner including a cleaner body including a motor configured to generate a suction force and a foreign substance collection chamber; and a suction head connected to the cleaner body. The suction head may include a drum brush, a one-way roller disposed in front of the drum brush, and a housing having a suction port. The drum brush and the one-way roller may be configured so that, when the suction head is moving forward on a surface to be cleaned, the drum brush and the one-way roller rotate so that foreign substances on the surface are suctioned by the suction force into the housing through the suction port to be guided to the foreign substance collection chamber, and when the suction head is moving rearward on the surface, rotation of the one-way roller is restricted to prevent the foreign substances suctioned into the housing from being discharged outside of the housing of the suction head through the suction port.

An inspection apparatus for inspecting an inspection target surface arranged on an inspection plane, includes an X-ray generation tube having a target including an X-ray generation portion that generates X-rays by irradiation with an electron beam, and configured to emit X-rays to the inspection plane, and an X-ray detector configured to detect X-rays emitted from a foreign substance existing on the inspection target surface irradiated with the X-rays from the X-ray generation portion and totally reflected by the inspection target surface. The X-ray detector includes a long X-ray receiver.

A control device of the present disclosure is used in a foreign substance removal device including a removal section configured to pick up and remove a foreign substance from a waste material conveyed by a conveyance device, a dust-proof section configured to perform dust-proofing related to maintenance of the foreign substance removal device with respect to powder dust derived from the waste material, and an imaging section located upstream of the removal section and configured to capture an image of the waste material. The control device executes one or more of control processing of controlling the dust-proof section based on information regarding an amount of waste material obtained from an image captured by the imaging section, and output processing of outputting information regarding the maintenance of the foreign substance removal device based on the information regarding the amount of waste material obtained from the image captured by the imaging section.

A clothing dryer and a method performed by the clothing dryer, according to the present disclosure, are designed to identify the degree of clogging of a filter for collecting foreign substances generated during a drying operation. To this end, the clothing dryer may comprise: a display; an expansion valve provided in a heat pump unit; and a control unit for identifying the degree of clogging of the filter.

An air purifier is provided. The air purifier includes a housing, an inner frame arranged inside the housing, a filter assembly configured to remove foreign substances from air introduced into the housing, and to be detachably mounted on the inner frame, and a detection module configured to detect whether the filter assembly is mounted, wherein the filter assembly includes a dust collection filter detachably mounted on the inner frame in a mounting direction (AX), and a pre-filter detachably mounted on the dust collection filter in a direction parallel to the mounting direction, and is arranged on a flow path that is toward the dust collection filter, and wherein the detection module includes a first sensor provided in the inner frame to detect whether the dust collection filter is mounted, and a second sensor provided in the inner frame to detect whether the pre-filter is mounted.

An electronic device includes a substrate and a die having an active surface disposed on the substrate. A sensor is in communication with the active surface of the die and a ring is disposed on the die and encircles the sensor. The ring includes a cylindrical wall and a cap, where the cylindrical wall has an open top and the cap has a partial circular shape that extends beyond each side of the cylindrical wall, A cover is disposed on the cap such that the cover closes off the open top of the ring to form a cavity inside the ring to prevent foreign substance from entering the cavity. A mold compound covers the die and the cover, and abuts an outer surface of the cylindrical wall.

A surface inspection device (3) includes an image acquisition means (31) of acquiring a plurality of images of an inspected site on a coated surface of a workpiece (100) imaged by an imaging device (2) in a state where a bright and dark pattern of an illumination device (1) that illuminates the inspected site is moved relative to the workpiece (100), a calculation means (32) of calculating a feature representing a surface defect for the plurality of images acquired by the image acquisition means, and an estimation means (33) of estimating a depth from a coated surface of a foreign substance causing the surface defect using change in the feature calculated by the calculation means.

An active energy irradiation device includes a housing, an irradiation unit, a heat conduction member, a first opening that is provided at the housing, and an air introduction unit that deflects air flowing into the housing along a first direction via the first opening to a second direction intersecting the first direction to introduce the air to the heat conduction member. The air introduction unit includes a partition that is provided to face the first opening in the housing, and a filter that is provided between the first opening and the partition, and collects foreign substances contained in the air. The filter includes a first filter portion that is provided on the heat conduction member side to come into contact with the partition without being exposed from the first opening as viewed from the first direction.

Disclosed is a fluorine-based resin film which has a melt viscosity η of 600 Pa∙s to 4,000 Pa∙s inclusive as measured at a measurement temperature of 260°C and a measurement shear rate of 50 s-1. The fluorine-based resin film has a surface roughness height Rz of 0.50 μm or less as measured in accordance with JIS B 0601 (2001), and the number of foreign substances having a size of 100 μm or more is 7 per 0.25 m2 or less, the size being the arithmetic average value of the maximum width and the minimum width when the film is viewed in plan.

To provide a composition for chemical mechanical polishing and a polishing method that can effectively suppress contamination of foreign matters during manufacturing and can polish the surface of a semiconductor substrate to a flat surface.SOLUTION: The composition for chemical mechanical polishing according to the present invention contains abrasive grains including silica and a liquid medium, wherein the surface silanol group density of the abrasive grain component containing silica measured by the Sears method is 4 pcs / nm2 to 15 pcs / nm2 and the CV value is 15 to 50, and the abrasive grain component containing silica has at least one functional group selected from the functional groups represented by the following general formulas (1)-(4), -SO3-M+ (1), -COO-M+ (2), -NR1R2 (3), -N+R1R2R3M- (4).SELECTED DRAWING: None

Electronic devices include a first housing, a second housing, a display arranged between the first housing and the second housing, and a hinge structure of which at least a portion is arranged between the first housing and the second housing to support a hinge operation. A hinge housing is provided in which at least a portion of the hinge structure is receivable. At least one cavity structure defines at least one cavity in at least a partial region of at least one of the hinge housing, the first housing, and the second housing to prevent flowing or diffusion of incoming foreign matter.

Disclosed is a measuring device for measuring the height of a foreign object in a pipe. The disclosed measuring device may include an ultrasonic transmitting unit disposed in the first region of the outer surface of the pipe through which the fluid passes inside thereof, and including an ultrasonic generator generating ultrasounds, a first transmission medium unit disposed between the ultrasonic generator and the first region, the first transmission medium unit, a second transmission medium unit disposed between the first transmission medium unit and the first area and contacting the first area, and a 1-1 ultrasound type conversion unit formed in the second transmission medium unit for converting the type of ultrasound received from the first transmission medium unit.

A foreign substance detection system is disclosed to detect whether foreign substances are attached to an environmental sensor of a vehicle. The foreign substance detection system includes a detection loop through which current selectively flows. In particular, the detection loop includes a controller configured to operatively control a sensor cleaning system configured to clean an environmental sensor of a vehicle, and a power supply unit configured to continuously supply electric power to the controller. The environmental sensor includes a detection device configured to open or close the detection loop on the basis of whether a fluid or a foreign substance is attached.