Abstract: An auxiliary heat exchange unit of a heat exchanger has a first auxiliary heat exchange region and a second auxiliary heat exchange region. A main heat exchange unit has a first main heat exchange region, a second main heat exchange region, a third main heat exchange region, and a fourth main heat exchange region. The auxiliary heat exchange unit and the main heat exchange unit are configured to cause refrigerant to flow successively through the first auxiliary heat exchange region, the second auxiliary heat exchange region, the first main heat exchange region, the second main heat exchange region, the fourth main heat exchange region, and the third main heat exchange region when the heat exchanger functions as an evaporator.

Abstract: A heat exchanger includes: a plate-like fin having one end and an other end in a first direction; and a first heat transfer tube and a second heat transfer tube that each extends through the fin and that are adjacent to each other in a second direction. A portion to which the fin and the first heat transfer tube are connected and a clearance portion that separates between the fin and the first heat transfer tube are disposed between the fin and the first heat transfer tube. The clearance portion is disposed at one end side in the first direction relative to an imaginary center line that passes through a center of the first heat transfer tube in a long side direction and that extends along a short side direction.

Abstract: A refrigeration cycle apparatus includes a refrigerant circuit, by pipes, connecting a compressor, a flow switching device, a first heat exchanger, an expansion device, and a second heat exchanger. As refrigerant to be circulated through the refrigerant circuit, any one of a refrigerant having saturated gas temperature under standard atmospheric pressure that is higher than that of R32 and a refrigerant mixture mainly composed of the refrigerant is used. The refrigerant circuit includes an internal heat exchanger configured to exchange heat between the refrigerant flowing through a refrigerant-inlet side of the second heat exchanger and the refrigerant flowing through a refrigerant-outlet side of the second heat exchanger.

Abstract: A dust collecting attachment removably attachable to a power tool that includes a housing and a spindle: a covering part formed such that a drive axis of a spindle passes through the inside of a suction hole in the attached state of the power tool and at least partially covers a periphery of the tool mounting part; a discharging part connected to the covering part and configured to discharge dust from the inside of the covering part; and at least one elastically deformable engagement piece connected to the covering part and having a claw configured to engage with the housing at a predetermined position of the housing.

Abstract: An object is to provide a refrigeration cycle apparatus capable of reducing freezing in a lower part of a heat exchanger in which drainage water tends to accumulate and reducing an amount of refrigerant in a refrigerant circuit. The refrigeration cycle apparatus includes the refrigerant circuit 1 connecting, by refrigerant pipes, a compressor, a first expansion device, and a first heat exchanger configured to serve as evaporator during heating operation. The first heat exchanger is provided with a first heat exchange unit and a second heat exchange unit connected to the first heat exchange unit in series in the refrigerant circuit. The first expansion device is connected in parallel with the second heat exchange unit in the refrigerant circuit, and the second heat exchange unit is placed at a position lower than a position of the first heat exchange unit.

Abstract: A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.

Abstract: A compression molding device, which can obtain a high compression molding force without lowering the efficiency of article production, and whose molding means has a long service life, is provided. In the compression molding device, a one-side mold assembly moving means (58) includes a toggle link mechanism including two links (62) and (64), and a toggle link mechanism operating means (60), while an opposite-side mold assembly moving means (108) includes a hydraulic cylinder mechanism. When a one-side mold assembly (16) and an opposite-side mold assembly (18) are to be brought from an open state into a closed state, the one-side mold assembly (16) is first moved to a nearly closed state by the one-side mold assembly moving means (58), and then the opposite-side mold assembly (18) is moved from the nearly closed state to the closed state by the opposite-side mold assembly moving means (108).

Abstract: A heat exchanger includes a fin having a first through hole into which a first heat transfer tube is inserted and a second through hole into which a second heat transfer tube is inserted and including a first end portion and a second end portion, in which a virtual straight line passing through end portions on the first end portion side of the first heat transfer tube and the second heat transfer tube is a first virtual straight line, a virtual straight line passing through end portions on the second end portion side of the first heat transfer tube and the second heat transfer tube is a second virtual straight line, a region between the first end portion and the first virtual straight line is a first drainage region, a region between the second end portion and the second virtual straight line is a second drainage region, and a region enclosed by the first heat transfer tube, the second heat transfer tube, the first virtual straight line and the second virtual straight line is a water introducing region, a fir

Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus improve a heat exchange performance, a discharge performance, and a frosting resistance, and each include: a flat tube; a fin formed in the shape of a plate having a plate surface extending in a longitudinal direction of the fin that is perpendicular to a width direction thereof, coincides with an up/down direction, and crosses the tube axis of the flat tube; and a first water conveyance member provided below the fin.

Abstract: Several means 71, 72, 73, 74, and 75 are provided for restricting a relative displacement in a separating direction of half-split housings 50L, 50R. At one or more of several screw-connection parts 60 of the left and right half-split housings 50L, 50R, a press-fitting protrusion 71a is provided in an insertion hole 62a of a boss-receiving part 62 into which a screw-boss part 61 is inserted. By press-fitting the screw-boss part 61 to the boss-receiving part 62, a separation resistance may be introduced between the left and right half-split housings 50L, 50R.

Abstract: An auxiliary heat exchange unit of a heat exchanger has a first auxiliary heat exchange region and a second auxiliary heat exchange region. A main heat exchange unit has a first main heat exchange region, a second main heat exchange region, a third main heat exchange region, and a fourth main heat exchange region. The auxiliary heat exchange unit and the main heat exchange unit are configured to cause refrigerant to flow successively through the first auxiliary heat exchange region, the second auxiliary heat exchange region, the first main heat exchange region, the second main heat exchange region, the fourth main heat exchange region, and the third main heat exchange region when the heat exchanger functions as an evaporator.

Abstract: A pretreatment kit includes a container (10) for particle manipulation, nucleic acid capture particles (70) capable of selectively binding to nucleic acid, aqueous-phase separation medium (21, 22, 23), a plurality of kinds of aqueous liquids (35, 31, 32, 38), and a nucleic acid for individual identification. The nucleic acid for individual identification is contained in at least one of the plurality of kinds of aqueous liquids or is bound onto the surfaces of the nucleic acid capture particles. The base sequence of the nucleic acid for individual identification contains an identification sequence including a base sequence noncomplementary to the nucleic acids contained in the biological sample. The pretreatment kit is used for separating nucleic acids from biological samples that contains nucleic acids and contaminants.

Abstract: An object is to provide a heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus in which frost melt water is inhibited from reaching an upper surface of a header and the heat exchange performance and the reliability are improved. The invention includes: a plurality of heat transfer tubes arranged in parallel with each other; a fin connected to at least one of the plurality of heat transfer tubes; and a header having a header end surface being a surface along a direction in which the plurality of heat transfer tubes are arranged in parallel with each other, the header being connected to one end portions of the plurality of heat transfer tubes.

Abstract: An oxygen-shielding container lid according to the present invention comprises a high density polyethylene cap shell 1 having a skirt section 7 and a top plate section 5 provided with an inner ring 9 for intimate contact with an inner surface of a container mouth; and an in-shell molded body 3 provided in a portion of an inner surface of the top plate section which is surrounded with the inner ring 9. The in-shell molded body 3 is composed of a primary molded body 3a which has been formed by in-shell molding on the inner surface of the top plate section and which has an oxygen shielding function; and a secondary molded body 3b which has been formed on the primary molded body 3a by in-shell molding so as to cover the primary molded body 3a and to be fused and fixed to the inner surface of the top plate section at the peripheral edge of the primary molded body. A resin composition used for formation of the secondary molded body 3b contains linear low density polyethylene, and has a melt flow rate at 190° C.

Abstract: A heat exchanger includes a plurality of flat tubes provided to extend in a first direction, and a plurality of plate-shaped fins having respective surfaces extending in a second direction. The surface has a windward edge and a leeward edge. The plurality of flat tubes include a first flat tube disposed most windward in the second direction, and a second flat tube spaced apart from the first flat tube and disposed most leeward in the second direction. In the second direction, a distance between the leeward edge and a center of a flat shape of the second flat tube is at least one-third of a width between the windward edge and the leeward edge.

Abstract: An outdoor heat exchanger of an outdoor unit includes a main heat exchanger portion and an auxiliary heat exchanger portion. In the main heat exchanger portion, refrigerant path groups are formed. In the auxiliary heat exchanger portion, refrigerant paths are formed. The refrigerant path in the auxiliary heat exchanger portion, which is located closest to the main heat exchanger portion, is connected to the refrigerant path group in the main heat exchanger portion, which is disposed in a region where a wind velocity of the outdoor air passing through the main heat exchanger portion is relatively high. In addition, the refrigerant path is connected to the refrigerant path group. The refrigerant path is connected to the refrigerant path group. The refrigerant path is connected to the refrigerant path group.

Abstract: An outdoor heat exchanger includes: a main heat exchange area; a sub heat exchange area; and a connecting pipe and a connecting pipe interconnecting the main heat exchange area and the sub heat exchange area. The main heat exchange area has a main heat exchange channel and a main heat exchange channel. The sub heat exchange area has a sub heat exchange channel, a sub heat exchange channel, and a sub heat exchange channel. The connecting pipe connects the sub heat exchange channel and the sub heat exchange channel to the main heat exchange channel while the sub heat exchange channels are joined together. The connecting pipe interconnects the sub heat exchange channel and the main heat exchange channel.

Abstract: A refrigeration cycle apparatus includes a refrigerant circuit which allows refrigerant to circulate therethrough, and an outdoor heat exchanger which exchanges heat between the refrigerant and outdoor air. The outdoor heat exchanger has first to third heat exchange sections. The second heat exchange section is located below the first heat exchange section, and the third heat exchange section is located below the second heat exchange section. In a refrigerant passage connecting the second and third heat exchange sections, a first pressure reducing device reduces a pressure of the refrigerant flowing through the refrigerant passage. In an operation mode in which the first and second heat exchange sections each serve as an evaporator, the third heat exchange section is located upstream of the second heat exchange section in the flow of the refrigerant, and refrigerant having a temperature higher than that of the outdoor air flows through the third heat exchange section.

Abstract: A refrigeration cycle apparatus includes a refrigerant circuit, by pipes, connecting a compressor, a flow switching device, a first heat exchanger, an expansion device, and a second heat exchanger. As refrigerant to be circulated through the refrigerant circuit, any one of a refrigerant having saturated gas temperature under standard atmospheric pressure that is higher than that of R32 and a refrigerant mixture mainly composed of the refrigerant is used. The refrigerant circuit includes an internal heat exchanger configured to exchange heat between the refrigerant flowing through a refrigerant-inlet side of the second heat exchanger and the refrigerant flowing through a refrigerant-outlet side of the second heat exchanger.

Abstract: A refrigeration cycle apparatus includes a refrigerant circuit and a controller for controlling the refrigerant circuit. The refrigerant circuit includes a compressor, a condenser, a pressure-reducing device and an evaporator. Refrigerant circulating through the refrigerant circuit contains propane or propylene. The controller sets a degree of superheat of refrigerant at an entrance port of the compressor to be a value greater than or equal to 10 degrees.