Abstract:
A nozzle for a cleaner has a nozzle housing, and first and second rotation cleaning units arranged on a lower side of the nozzle housing and spaced apart from each other. Each of the first and second rotation cleaning units includes a rotation plate coupled to a mop. The nozzle includes a first driving device having a first driving motor to drive the first rotation cleaning unit. The nozzle also includes a second driving device having a second driving motor to drive the second rotation cleaning unit. Further, the nozzle has a water tank mounted on the nozzle housing to store water. The nozzle housing includes driving unit covers arranged to surround each of the driving devices. At least one of the driving unit covers includes a first protruding surface, and a second protruding surface positioned higher than the first protruding surface.
Abstract:
A scroll compressor includes a first scroll including a fixed wrap, a second scroll comprising an orbiting wrap, and a boss portion, a rotating shaft including an eccentric portion inserted into the boss portion of the second scroll to transfer a rotational force, a frame having a shaft hole, a first bearing provided between the shaft hole of the frame and an outer circumferential surface of the rotating shaft, and a second bearing provided between an inner circumferential surface of the boss portion and an outer circumferential surface of the eccentric portion of the rotating shaft, wherein a differential pressure space portion is formed between the first bearing and the second bearing in a radial direction, and has a radial cross section wider than a radial gap between an inner circumferential surface of the second bearing and the outer circumferential surface of the eccentric portion.
Abstract:
A co-rotating scroll compressor is provided in which pressure differences between inner and outer portions of a suction chamber are maintained, back pressures are applied to rear surfaces of end plates of a drive scroll and a driven scroll in directions in which the two scrolls are moved toward each other to prevent compression leakage of a fluid, and a lubricant oil is easily supplied to the two scrolls using the back pressures. The co-rotating scroll compressor may include pressure seals between the rear surfaces of the end plates of the drive scroll and the driven scroll and an inner wall of the suction chamber such that the two scrolls are pressed in directions to be moved toward each other by the back pressures, and the oil is supplied to rotary supports and close contact portions of the two scrolls using the back pressures.
Abstract:
An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include a plurality of units including an outdoor unit and an indoor unit, the plurality of units being distributed at a plurality of layers or levels or floors in a building; and a controller configured to monitor and control the plurality of units. The controller and the plurality of units may include a communication unit configured to transmit/receive data in a wireless communication scheme, respectively. One of the plurality of units may be configured as a master node, and remaining units except for the unit configured as the master node may be configured as slave nodes, respectively, so that the slave node stores information on an upper parent node and a lower child node in a routing table to transmit data.
Abstract:
Disclosed herein are a washing machine that is capable of having a reduced washing time and improved washing performance, and a method of controlling the same. The washing machine includes a tub accommodating wash water, a drum rotatably arranged in the tub and accommodating laundry, a drive unit for rotating the drum, a water supply unit for adjusting an inflow of the wash water, and a control unit, wherein the control unit drives the drive unit and detects an amount of the laundry so as to set a target water level, controls the water supply unit to supply the wash water into the tub such that the wash water is lower than the target water level, drives the drive unit to accelerate the drum at a rotational speed, and controls the water supply unit to supply the wash water into the tub until the target water level.
Abstract:
A device and method for performing inter-device communication are disclosed. The inter-device communication method includes searching for a second device supporting inter-device communication, receiving service information from the searched second device, determining that one of the first and second devices is a group owner and the other is a group client to compare the received service information of the second device with service information of a first device, receiving a group owner intent value of the second device from the second device, and setting a group owner intent value of the first device such that the group owner intent value of the device determined as the group owner is greater than the group owner intent value of the device determined as the group client to compare the group owner intent value of the first device with the group owner intent value of the second device.
Abstract:
A method for manufacturing a solar cell is discussed. The method may include injecting first impurity ions at a first surface of a substrate by using a first ion implantation method to form a first impurity region, the substrate having a first conductivity type and the first impurity ions having a second conductivity type, and the first impurity region having the second conductivity type; heating the substrate with the first impurity region to activate the first impurity region to form an emitter region from the first impurity region; etching the emitter region from a surface of the emitter region to a predetermined depth to form an emitter part from the emitter region; and forming a first electrode on the emitter part to connect to the emitter part and a second electrode on a second surface of the substrate to connect to the second surface of the substrate.
Abstract:
The present invention relates to a wireless communication system. Specifically, the present invention relates to a method for setting a link for Wi-Fi Direct P2P communication and a device for the same, the method comprising the steps of: discovering, by a STA, whether a joinable WFD communication group exists; and setting, by the STA which discovered a new WFD target, a link for joining into a joinable WFD group if the joinable WFD group exists.
Abstract:
A nozzle for a cleaner may comprise a nozzle housing and a rotation cleaning unit rotatably disposed under the nozzle housing. The rotation cleaning unit may comprise a mop configured to clean a floor and a rotation plate coupled to the mop. The nozzle may comprise a driving device disposed in the nozzle housing and comprising a motor configured to drive the rotation cleaning unit, and a water tank mounted on the nozzle housing and configured to store water. The mop may comprise a floor cleaning portion, an attaching portion disposed above the floor cleaning portion to be coupled to the rotation plate, and an upper absorbing portion disposed above the floor cleaning portion and at least partially overlapping the attaching portion. The upper absorbing portion may be sewn to the attaching portion and may be configured to absorb water from the water tank.
Abstract:
A nozzle for a cleaner includes a nozzle housing including a suction flow path through which air including dust flows and at least a portion of which extends in a front and rear direction. First and second rotation cleaning units are arranged on the lower side of the nozzle housing to be spaced apart from each other in a lateral direction. Each of the first and second rotation cleaning units includes a rotation plate adapted for attachment of a mop. A first driving device including a first driving motor drives the first rotation cleaning unit and a second driving device including a second driving motor drives the second rotation cleaning unit. A water tank mounted on the nozzle stores water to be supplied to the mop.