Abstract: A delivery box stores a delivery item and can be moved to a delivery destination. A management server manages delivery of the delivery item using the delivery box. The delivery box includes a power supply, a temperature adjustment unit adjusting temperature of the delivery item with a power supplied from the power supply, and a transmission/reception unit transmitting/receiving information to/from the management server via a communication network. The management server includes a delivery possibility determination unit executing delivery possibility determination of determining whether temperature of the delivery item can be maintained at a predetermined temperature by the temperature adjustment unit until the delivery item is delivered to the delivery destination. The delivery possibility determination unit executes the delivery possibility determination based on at least the power supply information relating to power supplied from the power supply acquired from the delivery box.

Abstract: A heat exchanger includes tubes arranged in one direction, and a corrugated fin provided between the tubes. The corrugated fin includes joints joined to the tubes, and fin bodies that connect the joints which are located next to each other along the wave shape. The fin body includes a cut-raised portion that has a shape in which a part of the fin body is cut and raised for promotion of heat transfer. The cut-raised portion includes a cut-raised end on at least one end of the cut-raised portion in the one direction. The cut-raised end has recesses and projections on its surface that increase hydrophilicity of the surface of the cut-raised end.

Abstract: A heat exchanger includes a tube, a corrugated fin, and a plurality of grooves. The corrugated fin has a plurality of bent portions and a plurality of fin main bodies disposed between the bent portions. The multiple grooves are arranged at specified intervals from each other and are formed on a surface of the corrugated fin to enhance the hydrophilicity of the surface. The corrugated fin includes a first thick portion in which at least one of the grooves is included and a second thick portion thicker than the first thick portion in a cross-sectional view along an extending direction of the bent portions.

Abstract: An electromagnetic wave utilization system includes an electromagnetic wave device configured to send or/and receive an electromagnetic wave, and a passage part through which passes the electromagnetic wave utilized by the electromagnetic wave device. The passage part includes an inner member provided to face the electromagnetic wave device, an outer member provided on the opposite side to the electromagnetic wave device, and a heat insulating portion disposed between the inner member and the outer member so as to suppress fogging on a portion of the inner member through which the electromagnetic wave passes.

Abstract: An electromagnetic wave utilization system for a vehicle includes an electromagnetic wave device that sends or/and receives an electromagnetic wave, and a passage part through which passes the electromagnetic wave utilized by the electromagnetic wave device. The passage part has a hydrophilic portion having hydrophilicity. Accordingly, it is possible to suppress fogging of the passage part through which the electromagnetic wave passes with a simple configuration.

Abstract: A heat exchanger includes tubes arranged in one direction, and a corrugated fin provided between the tubes. The corrugated fin includes joints joined to the tubes, and fin bodies that connect the joints which are located next to each other along the wave shape. The fin body includes a cut-raised portion that has a shape in which a part of the fin body is cut and raised for promotion of heat transfer. The cut-raised portion includes a cut-raised end on at least one end of the cut-raised portion in the one direction. The cut-raised end has recesses and projections on its surface that increase hydrophilicity of the surface of the cut-raised end.

Abstract: A heat exchanger includes a tube, a corrugated fin, and a plurality of grooves. The corrugated fin has a plurality of bent portions and a plurality of fin main bodies disposed between the bent portions. The multiple grooves are arranged at specified intervals from each other and are formed on a surface of the corrugated fin to enhance the hydrophilicity of the surface. The corrugated fin includes a first thick portion in which at least one of the grooves is included and a second thick portion thicker than the first thick portion in a cross-sectional view along an extending direction of the bent portions.

Abstract: An evaporator has an outer peripheral side held by a holding portion. The evaporator includes a body portion and a packing located on a part of the body portion that faces to the holding portion. The packing includes an inner elastic layer and an outer elastic layer. The inner elastic layer has a water absorbability smaller than that of the outer elastic layer and is made of a closed cell foam member. The outer elastic layer is made of an open cell foam member. The holding portion includes a first rib preventing an air from flowing along the outer peripheral side of the body portion, and a second rib preventing a displacement of the body portion. A thickness of the outer elastic layer in a condition where the outer elastic layer is not held by the holding portion is larger than a protrusion length of the first rib.

Abstract: A first evaporation unit and a second evaporation unit are coupled via a refrigerant interchanging portion having a first communication portion and a second communication portion. A first partition member is provided in a tank portion of the first evaporation unit to define a first tank internal space and a second tank internal space. The first partition member has a first communication hole to let the first tank internal space and the second tank internal space communicate with each other. A second partition member is provided in a tank portion of the second evaporation unit to define a third tank internal space and a fourth tank internal space. The second partition member has a second communication hole to let the third tank internal space and the fourth tank internal space communicate with each other.

Abstract: An evaporator has an outer peripheral side held by a holding portion. The evaporator includes a body portion and a packing located on a part of the body portion that faces to the holding portion. The packing includes an inner elastic layer and an outer elastic layer. The inner elastic layer has a water absorbability smaller than that of the outer elastic layer and is made of a closed cell foam member. The outer elastic layer is made of an open cell foam member. The holding portion includes a first rib preventing an air from flowing along the outer peripheral side of the body portion, and a second rib preventing a displacement of the body portion. A thickness of the outer elastic layer in a condition where the outer elastic layer is not held by the holding portion is larger than a protrusion length of the first rib.

Abstract: A first evaporation unit and a second evaporation unit are coupled via a refrigerant interchanging portion having a first communication portion and a second communication portion. A first partition member is provided in a tank portion of the first evaporation unit to define a first tank internal space and a second tank internal space. The first partition member has a first communication hole to let the first tank internal space and the second tank internal space communicate with each other. A second partition member is provided in a tank portion of the second evaporation unit to define a third tank internal space and a fourth tank internal space. The second partition member has a second communication hole to let the third tank internal space and the fourth tank internal space communicate with each other.

Abstract: A heat exchanger has a rectangular parallelepiped shape in which refrigerant flows. When sides configuring the heat exchanger having the rectangular parallelepiped shape include a first side, a second side, and a third side, a length of the third side is shortest. A surface surrounded by the first side and the second side is a heat exchange surface of the heat exchanger. A fixing structure for fixing the heat exchanger to a case includes at least one fixing portion disposed on at least one of a surface surrounded by the first side and the third side and a surface surrounded by the second side and the third side. The fixing portion is disposed at a position where a composite vibration mode of not greater than 1000 Hz is minimum.

Abstract: In an evaporator unit, a first evaporator is coupled to an ejector to evaporate refrigerant flowing out of the ejector, a second evaporator is coupled to a refrigerant suction port of the ejector to evaporate the refrigerant to be drawn into the refrigerant suction port, a flow amount distributor is located to adjust a flow amount of the refrigerant distributed to the nozzle portion and a flow amount of the refrigerant distributed to the second evaporator, and a throttle mechanism is provided between the flow amount distributor and the second evaporator to decompress the refrigerant flowing into the second evaporator. The flow amount distributor is adapted as a gas-liquid separation portion and as a refrigerant distribution portion for distributing separated refrigerant into the nozzle portion and the second evaporator. Furthermore, the flow amount distributor and the ejector are arranged in line in a longitudinal direction of the ejector.

Abstract: An integrated unit is formed by integrally assembling an ejector, a first evaporator that evaporates refrigerant discharged from the ejector, a second evaporator that evaporates the refrigerant drawn into the ejector, a refrigerant dividing portion that adjusts a flow amount of refrigerant flowing in and divided to the nozzle portion and the second evaporator, and a joint in which a refrigerant inlet and a refrigerant outlet are formed. In the joint, there is formed a gas-liquid separation portion that causes refrigerant flowing therein to swirl to separate it into gas and liquid. The ejector, refrigerant dividing portion and joint are arranged in a longitudinal direction of the ejector.

Abstract: An integrated unit is formed by integrally assembling an ejector, a first evaporator that evaporates refrigerant discharged from the ejector, a second evaporator that evaporates the refrigerant drawn into the ejector, a refrigerant dividing portion that adjusts a flow amount of refrigerant flowing in and divided to the nozzle portion and the second evaporator, and a joint in which a refrigerant inlet and a refrigerant outlet are formed. In the joint, there is formed a gas-liquid separation portion that causes refrigerant flowing therein to swirl to separate it into gas and liquid. The ejector, refrigerant dividing portion and joint are arranged in a longitudinal direction of the ejector.

Abstract: In an ejector unit, an ejector is bonded to a container to define in the container an inlet space in which an inlet of a nozzle portion of the ejector is open, a suction space in which a refrigerant suction port of the ejector is open and an outlet space in which an outlet of a diffuser portion of the ejector is open. The inlet space, the suction space and the outlet space are respectively partitioned from each other by bonding portions between the ejector and the container. The container is provided with a short-circuit detection hole exposed to an exterior of the container at least at one position of a first position between the inlet space and the suction space, and a second position between the suction space and the outlet space. Furthermore, the short-circuit detection hole is enclosed by the bonding portion.

Abstract: In an evaporator unit, a first evaporator is coupled to an ejector to evaporate refrigerant flowing out of the ejector, a second evaporator is coupled to a refrigerant suction port of the ejector to evaporate the refrigerant to be drawn into the refrigerant suction port, a flow amount distributor is located to adjust a flow amount of the refrigerant distributed to the nozzle portion and a flow amount of the refrigerant distributed to the second evaporator, and a throttle mechanism is provided between the flow amount distributor and the second evaporator to decompress the refrigerant flowing into the second evaporator. The flow amount distributor is adapted as a gas-liquid separation portion and as a refrigerant distribution portion for distributing separated refrigerant into the nozzle portion and the second evaporator. Furthermore, the flow amount distributor and the ejector are arranged in line in a longitudinal direction of the ejector.

Abstract: A heat exchanger is provided with a header tank having therein a circulation portion in which fluid flows, and multiple tubes which are stacked in a longitudinal direction of the header tank. The circulation portion is communicated with interiors of the tubes, and partitioned into an inlet side passage and other passages. An inflow port member is arranged at a longitudinal-direction end of the inlet side passage, and provided with multiple openings for causing at least a mainstream flow and a substream flow of fluid introduced toward the tubes. The mainstream flow is substantially evenly flow-divided by the substream flow.

Abstract: A flow passage through which a heat exchange medium flows is formed at least at a part of each airflow duct 3 to 6, and the heat exchange medium flowing through the passage (t) is allowed to cool or heat air flowing through the airflow duct 3 to 6. Alternatively, a heat generation film H is formed at a part of an inner surface of an air passage of each airflow duct 3 to 6 and is allowed to heat air flowing through the airflow duct 3 to 6. Because the airflow ducts 3 to 6 per se are first cooled or heated by the heat exchange medium flowing through the passage (t), the heat exchange loss with the airflow ducts, that has occurred in the prior art, can be eliminated. Because air conditioning wind is cooled or heated inside the airflow ducts 3 to 6, too, instantaneous cooling/warming performance can be improved.

Abstract: A heat exchanger core includes a first tube, a second tube, a first fin, a second fin, and a connection member. The second tube is provided upstream of the first tube in a direction of air flow. The first fin is coupled to an outer surface of the first tube for facilitating heat exchange of the first tube. The second fin is coupled to an outer surface of the second tube for facilitating heat exchange of the second tube. The second fin is located upstream of the first fin to define a clearance therebetween. The connection member connects peaks of the first and second fins or connects valleys of the first and second fins.