A heat exchanger and an air-conditioning apparatus that exhibit high performance, and also provide reliability in strength and corrosion resistance. The heat exchanger includes a plurality of fins each including a fin collar formed in a short cylindrical shape by perforating a flat base plate, the plurality of fins being stacked by serially connecting fin collars of the respective fins, the serially connected fin collars being bonded to form a conduit line and a fin core, the conduit line including a resin layer formed on an inner surface thereof. The heat exchanger also includes a reinforcing member having a length corresponding to a length of the conduit line from one end to the other end thereof, to improve rigidity of the conduit line.

A heat exchanger is provided with a unitary, single-piece structure that can be formed via 3D printing, for example. The heat exchanger includes a main body defining a first fluid inlet port, a first fluid outlet port, a second fluid inlet port, and a second fluid outlet port, wherein each of these fluid ports are integrally formed with the main body. A plurality of plates are stacked and integrally formed with the body. First fluid channels are defined by gaps in the material of the main body and are in fluid communication with the first fluid inlet port. Second fluid channels are defined by gaps in the material of the main body and are in fluid communication with the second fluid inlet port. The first fluid channels and the second fluid channels are interposed between the plates in alternating fashion along the stacked arrangement.

A loop heat pipe includes a metal layer stack of two outermost metal layers and intermediate metal layers stacked between the two outermost metal layers. The metal layer stack includes an evaporator, a condenser, a vapor pipe, a liquid pipe, and an inlet. The metal layer stack forms a flow passage that circulates the working fluid through the evaporator, the vapor pipe, the condenser, and the liquid pipe. At least one of the two outermost metal layers includes a thin wall portion that forms a portion of a wall of the vapor pipe in the flow passage.

The present disclosure may disclose cooling devices, including a cooling plate. One or more cooling pipelines may be formed inside the cooling plate. The cooling pipelines may include an inlet pipe, an outlet pipe and one or more connecting pipes. The inlet pipe and the outlet pipe may traverse the cooling plate along a first direction and one end of each of the inlet pipe and the outlet pipe may be blocked. The one or more connecting pipes may traverse the cooling plate along a second direction and both ends of each of the one or more connecting pipes may be blocked, and the inlet pipe and the outlet pipe may be interconnected with two end portions of each of the one or more connecting pipes, respectively, so that a coolant may flow in the cooling device.

A heat exchanger includes a plurality of heat exchange tubes stacked with a gap through which a first fluid can pass. The heat exchange tube includes: an internal flow path through which a second fluid for exchanging heat with the first fluid and which includes a folded portion; a plurality of slits provided between two flow path portions in the internal flow paths, the two flow path portions each extending from the folded portion and facing each other at an interval; and a plurality of protruding support portions in contact with another adjacent heat exchange tube to form the gap. As viewed in a stacking direction of the plurality of heat exchange tubes, at least one of the plurality of slits extends in a state where a center in an extending direction thereof deviates from a straight line connecting the two adjacent protruding support portions.

The plate-type heat exchanger includes blocks stacked on each other, each of the blocks including a heat exchanger body configured to exchange heat between a first fluid and a second fluid. A connection passage for the first fluid is formed between blocks adjacent to each other of the plurality of blocks, the connection passage allowing the outlet of one of the blocks adjacent to each other and the inlet of the other of the blocks adjacent to each other to communicate with each other, the first fluid in the blocks adjacent to each other having different flow directions between the blocks adjacent to each other, and a second connection passage is provided between at least one pair of blocks adjacent to each other among the plurality of blocks, the second connection passage being configured to cause the first fluid to flow to a position different from the connection passage.

A thermal regenerator apparatus is disclosed including a regenerator medium having a plurality of flow passages extending between first and second ports, the flow passages facilitating back and forth fluid flow in a generally transverse direction between the first and second ports while the medium alternatively receives thermal energy from and delivers thermal energy to the fluid. The regenerator medium includes a plurality of overlying foils, each foil having a plurality of channels extending through the foil, the channels having beveled sidewalls. The channels have a width and spacing in the transverse direction and channels in each adjacent overlying foil are transversely offset such that each channel spans between and is in fluid communication with a pair of channels in the adjacent foils and the beveled sidewalls of the channels redirect fluid flow between channels in adjacent foils to form the flow passages. The channels are elongated along the foil in a longitudinal direction orthogonal to the transverse direction and divided by foil bridges extending transversely, the foil bridges being sized to reduce thermal conduction through the medium in the transverse direction.

Disclosed in the present invention are a distributor for a plate heat exchanger, and a plate heat exchanger. The distributor includes; a tube part having a tube wall and having a first end and a second end; a first flange formed at the first end; and a connecting protrusion. The connecting protrusion projects from the tube wall of the tube part in a direction away from an axis of the tube part, and projects from the first flange at the inside of the outer edge of the first flange in a direction towards the second end of the tube part; the connecting protrusion has a connecting protrusion wall, which has an axial connecting protrusion wall that faces in the axial direction of the tube part and is remote from the first flange, the axial connecting protrusion wall being between the first end and the second end of the tube part, and having at least one through-hole. The distributor and plate heat exchanger according to embodiments of the present invention may reduce the manufacturing difficulty, and not only ensure excellent distribution, but may also avoid the risk of the through-hole being blocked by solder during brazing.

A throttling heat exchange assembly includes a first heat exchange part, a bridge, a second heat exchange part, a throttling element, and a sensing element. The bridge is at least partially located between the first heat exchange part and the second heat exchange part. The bridge includes two holes and/or slots for communication facing towards the first heat exchange part. The bridge includes at least two holes or slots that allow communication with the second heat exchange part. The bridge is further provided with a first mounting part. The sensing element is fitted to the first mounting part. A sensing head of the sensing element is located in an internal space of the bridge.

In one general aspect, a microchannel heat exchanger is disclosed. It includes a cover, a base, and thermally conductive sheets between the cover and the base that each define a series of side-by-side lanes aligned with a flow direction. The lanes each include aligned slots that define microchannel segments and are separated by cross ribs. The sheets are stacked between the base and cover so as to cause at least some of the ribs to be offset from each other and allow the microchannel segments in the same lane in adjacent sheets to communicate with each other along the flow direction to define a plurality of microchannels in the heat exchanger.