Abstract: A ventilation air conditioning structure including a room that has a floor portion to a fourth wall portion, a first wall portion to be a building outer wall in which an air supply opening is formed in a vicinity of a third wall portion, and an air exhaust opening that is formed in a vicinity of the fourth wall portion. The ventilation air conditioning structure also includes an air conditioner that is disposed inside the room and where at least one of air sending openings of a room interior unit is capable of sending air in a direction of a second wall portion, and an external-air conditioner that is disposed outside the room. The external-air conditioner includes heat exchangers that are incorporated in a refrigerant circuit of the air conditioner via a branched pipe that is branched from a refrigerant piping and a casing that houses the heat exchangers.

Abstract: An external-air conditioning apparatus and a ventilation system are provided, the external-air conditioning apparatus includes a fin tube type heat exchanger and a housing that stores this heat exchanger. The housing includes a base body that serves as a back side of the apparatus body and a cover body that serves as a front side of the apparatus body, and the base body and the cover body are dividable and detachable in structure. The base body has a base portion, a partitioning portion, a connecting pipe portion, a heat-exchanger-holding structure portion, and a water receiving portion. The cover body is a structure in which a front wall portion and a three-side peripheral wall portion are formed integrally with each other, and a part in which the peripheral wall portion is not formed is an inlet for external air.

Abstract: A heating element cover component includes a hollow outer shell portion of a required length, having required rigidity and thermal conductivity, a substantially half-pipe shaped abutting portion formed with a required thickness on the outside of the outer shell portion in a longitudinal direction of the outer shell portion, having flexibility and thermal conductivity, and with a slit penetrating in a thickness direction formed over the entire length in the longitudinal direction, a connecting portion having flexibility and thermal conductivity, connecting opposed edges of the abutting portion in the longitudinal direction with the outer shell portion, and an engaging portion constituted with a projecting piece and a projecting piece inserting portion being engaging elements disposed at line-symmetrical positions using a longitudinal straight line located at a widthwise middle of the abutting portion as an axis of symmetry to form a pair structured to be engageable with each other.

Abstract: A heating element cover component includes a hollow outer shell portion of a required length, having required rigidity and thermal conductivity, a substantially half-pipe shaped abutting portion formed with a required thickness on the outside of the outer shell portion in a longitudinal direction of the outer shell portion, having flexibility and thermal conductivity, and with a slit penetrating in a thickness direction formed over the entire length in the longitudinal direction, a connecting portion having flexibility and thermal conductivity, connecting opposed edges of the abutting portion in the longitudinal direction with the outer shell portion, and an engaging portion constituted with a projecting piece and a projecting piece inserting portion being engaging elements disposed at line-symmetrical positions using a longitudinal straight line located at a widthwise middle of the abutting portion as an axis of symmetry to form a pair structured to be engageable with each other.

Abstract: An air conditioning device 1A includes a support frame 21, a heat generating portion 22 having flow pipes for a flowable heating medium which are respectively laterally laid at an interval in an up-and-down direction across an intermediate region of the support frame and outer shell bodies covering the flow pipes, each showing a flat shape or elliptical shape as an outer shape of a cross-section of a peripheral wall, having a structure capable of dissipating to the outside heat transmitted from the flow pipe, and attached so that long axis directions perpendicular to a longitudinal direction are inclined in the same direction, a reflector 23 having a reflecting surface that reflects radiant heat from the heat generating portion and is not permeable to water, and disposed on the back side of the air conditioning device 1A and a gutter-shaped receiving portion 24 disposed under the reflector.

Abstract: [Problem] To provide an air conditioning system which includes a convective indoor machine and a radiant indoor machine to prevent separation of lubricating oil in refrigerant and consequently prevent damage to a compressor, and can prevent lowering in reliability of the compressor. [Solution] The air conditioning system includes: an air conditioner having a compressor 3, an outdoor heat exchanger 4, an expansion valve 5, a convective indoor machine 2 and a refrigerant piping connecting them; and a radiant indoor machine 10 which is arranged between the convective indoor machine 2 and the compressor 3 and has a refrigerant pipe having an inner diameter smaller than that of the refrigerant piping.

Abstract: An air conditioning system, combining an air conditioner and a radiant heat exchanger, is provided with which convection of indoor air is promoted by the radiant heat exchanger to suppress air blowing by a fan of the air conditioner and thereby reduce a draft sensation. An air conditioning system A1 includes an air conditioner, having an outdoor machine and an indoor machine incorporated in a refrigeration cycle, and a radiant heat exchanger, having a heating element, including and arranged from piping through which a refrigerant passes, and having the respective piping making up the heating element connected to a piping connecting the outdoor machine and the indoor machine and passing the refrigerant, the radiant heat exchanger has rectifier plates that are vertically disposed with gaps, through which air passes, provided with respect to the heating element at the front surface side and rear surface side of the heating element, and each rectifier plate has a plurality of radiant heat passing pores.