Heat exchanger device and heating element holder using same

Abstract

A heat exchanger device of the invention having a body case provided with a first air intake port and a first discharge port for a first environment in a front surface thereof, and a second air intake port and a second discharge port for a second environment in a back surface thereof, an air-blow fan for the first environment provided in the body case, and a heat exchanger inside the body case for exchanging heat between the air in the first environment and the air in the second environment, and is configured such that opposed two surfaces are provided with an air suction port for a first environment and an air suction port for a second environment, respectively, and the other surface is provided with an air blow-off port for the first environment and an air blow-off port for the second environment, respectively. A surface provided with the air suction port for the first environment is directed to the air-blow fan, and a chamber is formed between the second air intake port and the air suction port for the second environment.

1 . A heat exchanger device comprising:
 a body case provided with a first air intake port and a first discharge port for a first environment in a front surface thereof, and a second air intake port and a second discharge port for a second environment in a back surface thereof;   an air-blow fan for the first environment provided in the body case; and   a heat exchanger inside the body case for exchanging heat between air in the first environment and air in the second environment, wherein   the heat exchanger includes a multilayered body having a plurality of parallelogram plate bodies multilayered with predetermined distances,   the multilayered body having the multilayered parallelogram plate bodies is provided with an air suction port for the first environment and an air suction port for the second environment in two opposed surfaces thereof,   the multilayered body having the multilayered parallelogram plate bodies is further provided with an air blow-off port for the first environment in one of the other surfaces formed thereon, and an air blow-off port for the second environment in another surface opposed to the surface having the air blow-off port for the first environment,   the surface provided with the air suction port for the first environment is directed to the air-blow fan,   the air blow-off port for the first environment is placed in contact with the first discharge port formed in the body case, and the air blow-off port for the second environment is placed in contact with the second discharge port formed in the body case, and   the heat exchanger has a chamber formed between the second air intake port and the air suction port for the second environment.   
     
     
         2 . (canceled) 
     
     
         3 . The heat exchanger device according to  claim 1 , wherein the body case comprises a frame body, a front plate and a box body provided in a front surface side of the frame body, and a back plate provided in a back surface side of the frame body, the second air intake port and the second discharge port are formed in the back plate, and the air-blow fan is fixed to the back plate. 
     
     
         4 . The heat exchanger device according to  claim 3 , wherein the box body is provided with a stand for mounting the heat exchanger. 
     
     
         5 . The heat exchanger device according to  claim 3 , wherein
 a back surface side of the frame body constructing the box body is formed into a flange shape protruding to an inner peripheral side,   a packing is attached around an inner surface side of the second discharge port formed in the back plate, and   the second discharge port and the air blow-off port for the second environment are closely attached when fixing the frame body and the back plate to the flange.   
     
     
         6 . The heat exchanger device according to  claim 3 , wherein the back plate is provided with a guide wall around a peripheral edge portion thereof in a manner to come along an outer periphery of the frame body. 
     
     
         7 . The heat exchanger device according to  claim 6 , wherein the front plate is provided with an orifice guiding to a suction port of the air-blow fan, and the guide wall is made higher than a height of the orifice. 
     
     
         8 . The heat exchanger device according to  claim 3  further comprising a cover fixed to the back plate and the flange in a manner to cover the box body, and the cover has a louver formed in a front surface side thereof. 
     
     
         9 - 11 . (canceled) 
     
     
         12 . The heat exchanger device according to  claim 1 , wherein the body case comprises:
 a box body having an opening in a back surface side thereof, and   a back plate provided on the back surface side of the box body,   wherein an inner wall surface of the box body is provided with a rail shaped support stand in contact with a periphery of an air suction port for the first environment of the heat exchanger.   
     
     
         13 . The heat exchanger device according to  claim 12 , wherein the box body is provided with a wedge shaped protruding portion on an inner wall surface thereof by forming a wedge shaped depression having a peak in a back surface side thereof, and an upper side of the wedge shaped protruding portion constitutes a part of the support stand of the heat exchanger. 
     
     
         14 . The heat exchanger device according to  claim 1 , wherein the body case comprises:
 a box body having an opening in a back surface side thereof, and   a back plate provided on the back surface side of the box body,   wherein the box body is provided with a protrusion on an inner portion thereof where the box body is pressed inward at the boundary between a top face and a front surface, and a top portion of the heat exchanger is brought into contact with a corner portion formed by the protrusion and the front surface of the box body.   
     
     
         15 . The heat exchanger device according to  claim 1 , wherein the body case comprises:
 a box body having an opening in a back surface side thereof, and   a back plate provided on the back surface side of the box body,   wherein the back plate has a projection provided in a manner to press the heat exchanger against the front surface side.   
     
     
         16 - 17 . (canceled) 
     
     
         18 . The heat exchanger device according to  claim 1 , wherein the body case comprises:
 a box body having an opening in a back surface side thereof; and   a back plate provided on the back surface side of the box body, and the air-blow fan comprises a centrifugal air blower,   wherein the centrifugal air blower comprises a motor and an impeller encased in a scroll casing having a suction port side plate provided with an ambient air suction port, a side plate opposed to the suction side and a scroll plate, the scroll plate is provided with a control box protruding in a diametrical direction and containing a control circuit for driving the motor, and the control box is separated from a space housing the impeller.   
     
     
         19 . The heat exchanger device according to  claim 18 , wherein the scroll casing comprises a resin integrally molding the suction port side plate with the scroll plate, and fixed to the side plate opposed to the suction side. 
     
     
         20 . The heat exchanger device according to  claim 18 , wherein the motor is fixed to a fixing plate provided on the side opposite the ambient air suction port, and the control circuit is fixed onto the fixing plate. 
     
     
         21 . The heat exchanger device according to  claim 20 , wherein the motor is fixed by the fixing plate and a motor cover sandwiching the motor with the fixing plate. 
     
     
         22 . (canceled) 
     
     
         23 . The heat exchanger device according to  claim 18 , wherein the scroll casing is integrally provided with the control box. 
     
     
         24 . The heat exchanger device according to  claim 23 , wherein the scroll casing is provided with a partition plate separating the space of the impeller from a section having the control box. 
     
     
         25 - 26 . (canceled) 
     
     
         27 . A heating element holder comprising:
 a heat exchanger device according to  claim 1 ;   a cabinet containing therein a heat generating body and forming a second environment; and   a circulating fan provided on a top surface of the cabinet for delivering the air in the cabinet to an air suction port for the second environment of the heat exchanger device,   wherein a fan case enclosing the circulating fan comprises a box body of integrally formed frame body and top surface, and a bottom plate provided with an air suction port for sucking the air in the cabinet.   
     
     
         28 . The heating element holder according to  claim 27 , wherein the bottom plate of the fan case has a bent portion formed by bending a periphery thereof at an acute angle toward the box body side, and the box body side of the fan case has a bonding flange by bending a periphery of a bottom plate side inward in a manner to bond to the bent portion of the bottom plate. 
     
     
         29 . The heating element holder according to  claim 27 , wherein the box body of the fan case is provided with an air blow-off port to the heat exchanger device in one of the side surfaces thereof, and a bonding flange in the periphery of the air blow-off port connecting to the heat exchanger device.