Heat exchanger for vehicle

摘要

A heat exchanger for a vehicle includes: a heat releasing unit that is stacked with a plurality of plates and that forms connection flow channels to intersect at the inside thereof to inject other working fluids and that exchanges a heat of working fluids that pass through the respective connection flow channels, a bypass unit that is formed in the heat releasing unit to form a plurality of inflow holes and exhaust holes that inject and exhaust the working fluids to the respective connection flow channels and that connects the inflow hole and the exhaust hole that is connected to one of the respective connection flow channels, and a valve unit that is mounted within the heat releasing unit to correspond to the inflow hole that forms the bypass unit and that is selectively opened or closed using a deformation force of bimetal that is deformed according to a temperature of a working fluid that is injected into the inside thereof to inject the working fluid into the heat releasing unit and the bypass unit.

主权项

1. A heat exchanger apparatus for a vehicle, comprising:
a heat releasing unit that is stacked with plates and that has first and second connection flow channels at the inside thereof to inject working fluids and that exchanges a heat of the working fluids that pass through the first and second connection flow channels; a bypass unit that connects an inflow hole and an exhaust hole that are formed in the heat releasing unit, wherein the inflow hole and the exhaust hole are connected to the first and second connection flow channels, respectively and wherein the bypass unit selectively bypasses an injected working fluid therethrough; a valve unit that is selectively open or closed using a deformation member that is deformed according to a temperature of a working fluid that is injected into the inside thereof to inject the working fluid into the heat releasing unit and the bypass unit; wherein the inflow hole includes first and second inflow holes that are each formed at both sides thereof in a length direction of the heat releasing unit; and wherein the exhaust hole is separated from the first and second inflow holes at both sides, in a length direction of the heat releasing unit and include first and second exhaust holes that are connected to respective connection flow channel at the inside of the heat releasing unit; wherein the valve unit includes;
a deformation member deformable according to a temperature of the working fluid;an inner case having a first bypass hole and a first opening hole; andan outer case enclosing the inner case and rotatably supporting the inner case, wherein the outer case includes a second bypass hole and a second opening hole that are selectively fluid-connected to the first bypass hole and the first opening hole according to the inner case rotated by the deformation member; and a fixing member that has a mounting groove at the center of an upper surface and that is fixedly mounted in the heat releasing unit to correspond to the first inflow hole; a rod having a lower end portion that is inserted into the mounting groove of the fixing member and that is rotatably mounted thereto; a mounting cap having an insertion hole at the center in order to receive the rod therethrough and that is mounted in the fixing member; the deformation member that is mounted in the rod in an upper part of the mounting cap and that rotates the rod in a forward direction or a backward direction according to the temperature of the working fluid; the inner case that is fixed to a front end of the rod in an upper part of the fixing member to rotate together with the rod and that has the first bypass hole in the upper part, and that has the first opening hole that is separated from the first bypass hole; and the outer case that rotatably supports the inner case in a state that encloses the outside of the inner case and that has the second bypass hole and the second opening hole that are selectively connected to the first bypass hole and the first opening hole according to the rotation of the inner case and that is fixed to the fixing member; and wherein the deformation member is made of a bimetal material that contracts and expands according to the temperature of the working fluid.