Abstract: The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc.

Abstract: The present invention relates to an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations. The present invention provides an inhalation toxicity testing chamber device for nanoparticles having a plurality of concentrations, which: can supply nanoparticles having different concentrations to particle exposure modules by stacking a plurality of particle exposure modules inside a single chamber housing and by allowing each particle exposure module so as to form an independent space from each other; can perform inhalation toxicity testing of nanoparticles having a plurality of concentrations through a single chamber housing by being capable of exposing the test animals put into each particle exposure module to nanoparticles having different concentrations; can easily perform inhalation toxicity tests of nanoparticles in a small scale laboratory etc.

Abstract: A high load switch for a vehicle includes a case having an opening formed at an upper side of the case; a first contact unit disposed at a lower side in the case; a second contact unit disposed at a lower side in the case and disposed directly above the first contact unit; and a contactor having one end fixed to one side in the case, and the other end disposed between the first contact unit and the second contact unit, in which a portion of the contactor between the one end and the other end is continuously formed, and the contactor includes a pusher unit formed by being bent upward so that an intermediate portion thereof penetrates the opening and protrudes, and a reinforcement bead formed on a surface of the contactor, thereby preventing deformation in the contactor and enhancing durability.

Abstract: The present invention relates to a high load switch for a vehicle, including: a case which has an opening formed at an upper side of the case; a first contact unit which is disposed at a lower side in the case; a second contact unit which is disposed at a lower side in the case and disposed directly above the first contact unit; and a contactor which has one end fixed to one side in the case, and the other end disposed between the first contact unit and the second contact unit, in which a portion of the contactor between the one end and the other end is continuously formed, and the contactor includes a pusher unit which is formed by being bent upward so that an intermediate portion thereof penetrates the opening and protrudes, and a reinforcement bead which is formed on a surface of the contactor, thereby preventing deformation in the contactor and enhancing durability.

Abstract: A cross-flow fan that variably maintains a distance between a blade and a fluid flow guide by varying a height of an outer edge and an air conditioner having the cross-flow fan are provided. Therefore, a noise and a peak value of a spectrum between the blade and the outer edge can be reduced.

Abstract: An indoor unit for an air conditioning apparatus is provided. The indoor unit includes a cross flow fan having a structure that can reduce noise and flow resistance of air passing through a heat exchanger in the indoor unit.

Abstract: A cross-flow fan that variably maintains a distance between a blade and a fluid flow guide by varying a height of an outer edge and an air conditioner having the cross-flow fan are provided. Therefore, a noise and a peak value of a spectrum between the blade and the outer edge can be reduced.

Abstract: An air conditioner includes a fan and a rear guide which guides air to the fan. A recess is formed in a side surface of the rear guide which faces the fan.

Abstract: An air conditioner is disclosed which includes a case having one or more air intake portions, a heat exchanger inside the case, a fan in a vicinity of the heat exchanger, and an intake amount reducing member at one of the air intake portions that reduces an intake amount of introduced air.

Abstract: A fan of an air conditioner is provided. A discharge portion of a hub of the fan increases in outer diameter toward a discharge end of the hub such that air can diverge from the hub. The hub accommodates a portion of a motor such that the fan can vibrate less when the motor operates.