Heat Exchanger of a Ventilation Apparatus

Abstract

A heat exchanger of a ventilation apparatus including a first positioning disk, a second positioning disk, a fixing module and a plurality of guiding pipes is disclosed. The first positioning disk has a first fixing portion and a plurality of first positioning portions. The second positioning disk has a second fixing portion and a plurality of second positioning portions. The fixing module connects with the first and second fixing portions of the first and second positioning disks to separate the first and second positioning disks by a distance. The plurality of guiding pipes is arranged between the first and second positioning disks. A first end of each guiding pipe couples with a respective one of the first positioning portions of the first positioning disk, and a second end of each guiding pipe couples with a respective one of the second positioning portions of the second positioning disk.

What is claimed is: 
     
         1 . A heat exchanger of a ventilation apparatus, comprising:
 a first positioning disk having a first fixing portion and a plurality of first positioning portions;   a second positioning disk having a second fixing portion and a plurality of second positioning portions;   a fixing module connecting with the first and second fixing portions of the first and second positioning disks to separate the first and second positioning disks by a distance; and   a plurality of guiding pipes arranged between the first and second positioning disks, wherein a first end of each guiding pipe couples with a respective one of the first positioning portions of the first positioning disk, and a second end of each guiding pipe couples with a respective one of the second positioning portions of the second positioning disk.   
     
     
         2 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , wherein each of the first and second positioning disks has a first surface and a second surface opposite to the first surface, wherein the first surfaces of the first and second positioning disks face each other, and wherein the first and second positioning portions of the first and second positioning disks are positioning holes for the first and second ends of the guiding pipes to insert and couple with. 
     
     
         3 . The heat exchanger of the ventilation apparatus as claimed in  claim 2 , wherein one of the positioning holes of the first positioning portions comprises an inner surface having a first positioning shoulder, one of the positioning holes of the second positioning portions comprises an inner surface having a second positioning shoulder, and one of the guiding pipes abuts against the first and second positioning shoulders by the first and second ends, respectively. 
     
     
         4 . The heat exchanger of the ventilation apparatus as claimed in  claim 2 , wherein an outer surface of each guiding pipe has two outer flanges respectively adjacent to the first and second ends of the guiding pipe, with each outer flange abutting against a respective one of the first surfaces of the first and second positioning disks. 
     
     
         5 . The heat exchanger of the ventilation apparatus as claimed in  claim 2 , wherein a rim of any one of the positioning holes has a round portion, with the rim connecting with the first surface. 
     
     
         6 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , wherein each of the first and second positioning disks has a first surface and a second surface opposite to the first surface, wherein the first surfaces of the first and second positioning disks face each other, and wherein the first and second fixing portions of the first and second positioning disks are fixing holes. 
     
     
         7 . The heat exchanger of the ventilation apparatus as claimed in  claim 6 , wherein the fixing module comprises a shaft and two fixing members, wherein two ends of the shaft respectively extend through the fixing holes, and the two fixing members are respectively fixed with said two ends of the shaft. 
     
     
         8 . The heat exchanger of the ventilation apparatus as claimed in  claim 7 , wherein each of said two ends of the shaft has a thread hole, and the fixing members are screws for coupling with the thread holes of the shaft. 
     
     
         9 . The heat exchanger of the ventilation apparatus as claimed in  claim 7 , wherein the fixing members are hidden within the fixing holes and below the second surfaces of the first and second positioning disks. 
     
     
         10 . The heat exchanger of the ventilation apparatus as claimed in  claim 7 , wherein the fixing hole of the first fixing portion has an inner surface forming a first fixing shoulder, the fixing hole of the second fixing portion has an inner surface forming a second fixing shoulder, and the shaft of the fixing module abuts against the first and second fixing shoulders in the fixing holes of the first and second positioning disks by the two ends respectively. 
     
     
         11 . The heat exchanger of the ventilation apparatus as claimed in  claim 6 , wherein a rim of any one of the fixing holes has a round portion, with the rim connecting with the first surface. 
     
     
         12 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , wherein the first and second ends of each guiding pipe are openings communicating with each other. 
     
     
         13 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , further comprising an additional fixing module, wherein each of the first and second positioning disks has an additional fixing portion for connecting with the additional fixing module, a reference plane including a center axis of any one of the first and second positioning disks and dividing this positioning disk into two parts is defined, and the two fixing modules connect to the two parts respectively. 
     
     
         14 . The heat exchanger of the ventilation apparatus as claimed in  claim 13 , wherein the two fixing modules are symmetrically arranged about the reference plane. 
     
     
         15 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , further comprising three additional fixing modules, wherein each of the first and second positioning disks has three additional fixing portions for connecting with the three additional fixing modules, a first reference plane and a second reference plane perpendicular to each other and both including a center axis of any one of the first and second positioning disks is defined, two of the four fixing modules are arranged on two sides of the first reference plane, and the other two of the four fixing modules are arranged on two sides of the second reference plane, wherein the first and second reference planes intersect each other to form four areas on each of the first and second positioning disks, with each area provided with a respective one of the four fixing modules. 
     
     
         16 . The heat exchanger of the ventilation apparatus as claimed in  claim 15 , wherein the two fixing modules arranged on two sides of the first reference plane are symmetrically arranged about the first reference plane, and the two fixing modules arranged on two sides of the second reference plane are symmetrically arranged about the second reference plane. 
     
     
         17 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , further comprising two additional fixing modules, wherein each of the first and second positioning disks has two additional fixing portions for connecting with the two additional fixing modules, wherein a reference plane including a center axis of any one of the first and second positioning disks and dividing this positioning disk into two parts is defined, wherein two of the three fixing modules connect to the two parts respectively, and the other one of the three fixing modules is arranged in the reference plane. 
     
     
         18 . The heat exchanger of the ventilation apparatus as claimed in  claim 1 , wherein each positioning disk has an outer peripheral surface whereon a sealing ring is formed.