JPS61121385U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a cross-flow type heat exchanger as an application example of the present invention, FIG. 2 is a perspective view showing the passage element alone, and FIG. 3 is a perspective view showing another embodiment of the present invention. FIG. 4 is a perspective view of the heat exchanger shown in FIG. 4, an explanatory diagram showing the passage element alone, FIG.
The figure is an end view showing another embodiment of the passage element, and FIG. 7 is a perspective view showing a cross-flow type heat exchanger as a conventional example. In the figure, 1 and 1A are heat exchangers, 2
is a plate, 3 is a rib, 4, 4A is a passage element, 5
is a connecting structure, 6 is an upper surface, 7 is a lower surface, 8 is a protrusion, 9
is a small hole. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A heat exchanger in which a passage element is inserted between each of a plurality of flat plates having heat conductivity, and double rows of parallel flow passages formed by the passage elements are formed in multiple stages in the opposing gaps between the plates. Each of the passage elements is an integrally molded ladder-shaped synthetic resin product in which ribs arranged in a row at a predetermined interval are connected in a bridge-like manner at both ends of the ribs by a connecting structure. The outermost part of the plate has a wider contact surface than the other parts, and the lower contact surface has a plurality of protrusions that fit into small holes formed in the plate. exchanger.