Manifold

Abstract

A manifold wherein a refrigerant flows in a channel formed inside a manifold, the manifold includes a housing wherein a plurality of bottomed holes serving as a channel are formed, and open ends of bottomed holes are positioned on side surface of the housing, and heat exchanger attached to the housing and allows refrigerant flowing through channel to exchange heat.

1 . A manifold through which a refrigerant flows in a channel formed inside the manifold, the manifold comprising:
 a housing in which a plurality of bottomed holes serving as the channel are formed, and open ends of the bottomed holes are positioned on a side surface of the housing; and   a heat exchanger that is attached to the housing and allows the refrigerant flowing through the channel to exchange heat, wherein   the heat exchanger includes a refrigerant inflow port into which the refrigerant flows from the channel, a refrigerant outflow port from which the refrigerant subjected to heat exchange flows out to the channel, a coolant inflow port into which a coolant subjected to heat exchange with the refrigerant flows, and a coolant outflow port from which the coolant subjected to heat exchange flows out,   the refrigerant outflow port is disposed closer to the refrigerant inflow port than the coolant inflow port and the coolant outflow port, and the coolant outflow port is disposed closer to the coolant inflow port than the refrigerant inflow port and the refrigerant outflow port,   the open end of at least one the bottomed hole among a plurality of the bottomed holes is closed by a first device that controls flow of the refrigerant, and   the open end of the bottomed hole, the open end being closed by the first device, is positioned closer to the refrigerant inflow port and the refrigerant outflow port than the coolant inflow port and the coolant outflow port.   
     
     
         2 . The manifold according to  claim 1 , wherein
 a second device different from the first device that controls flow of the refrigerant is disposed in a middle of the channel, and   the second device is positioned closer to the refrigerant inflow port and the refrigerant outflow port than the coolant inflow port and the coolant outflow port.   
     
     
         3 . The manifold according to  claim 2 , wherein, in planar view, the housing is formed so as to be inclined with respect to at least one the bottomed hole among a plurality of the bottomed holes, from the open end of the bottomed hole, and includes an inclined hole serving as the channel. 
     
     
         4 . The manifold according to  claim 3 , wherein three or more the first devices and/or the second devices are disposed along the inclined hole. 
     
     
         5 . The manifold according to  claim 3 , wherein the bottomed hole and the inclined hole have a common the open end. 
     
     
         6 . The manifold according to  claim 1 , wherein
 the heat exchanger includes at least a first heat exchanger and a second heat exchanger,   the first heat exchanger includes a first refrigerant inflow port as the refrigerant inflow port, a first refrigerant outflow port as the refrigerant outflow port, a first coolant inflow port as the coolant inflow port, and a first coolant outflow port as the coolant outflow port,   the second heat exchanger includes a second refrigerant inflow port as the refrigerant inflow port, a second refrigerant outflow port as the refrigerant outflow port, a second coolant inflow port as the coolant inflow port, and a second coolant outflow port as the coolant outflow port, and   the first refrigerant inflow port with respect to the first coolant inflow port, the first refrigerant outflow port with respect to the first coolant outflow port, the second refrigerant inflow port with respect to the second coolant inflow port, and the second refrigerant outflow port with respect to the second coolant outflow port are all disposed on the same side in planar view.   
     
     
         7 . The manifold according to  claim 1 , wherein the first device is an expansion valve. 
     
     
         8 . The manifold according to  claim 1 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         9 . The manifold according to  claim 3 , wherein
 the housing is formed by a die-casting method,   the housing has a gate mark that is a portion serving as a gate when the housing is formed by the die-casting method, and   neither the open ends of the bottomed holes nor the open end of the inclined hole is disposed on a gate side surface of the side surface of the housing, the gate side surface having the gate mark.   
     
     
         10 . The manifold according to  claim 3 , wherein the bottomed holes and the inclined hole are both linear in planar view. 
     
     
         11 . The manifold according to  claim 2 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         12 . The manifold according to  claim 3 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         13 . The manifold according to  claim 4 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         14 . The manifold according to  claim 5 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         15 . The manifold according to  claim 6 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.   
     
     
         16 . The manifold according to  claim 7 , wherein
 the heat exchanger includes an in-exchanger refrigerant channel connecting the refrigerant inflow port and the refrigerant outflow port, and an in-exchanger coolant channel connecting the coolant inflow port and the coolant outflow port, and   both the in-exchanger refrigerant channel and the in-exchanger coolant channel have a U shape in planar view.