Oil-free radiator and method for manufacturing the same

Abstract

The disclosure discloses an oil-free radiator and a method of manufacturing the same. The oil-free radiator comprises a housing having a top plate, a bottom plate, two side walls, a front cover and a rear cover, with radiating holes disposed uniformly in the top plate; a cavity enclosed by the housing and with one or more heating elements provided on a bottom in the cavity. The oil-free radiator further comprises a plurality of radiating fins perpendicularly connected to the top plate of the housing and extending to the side walls. The present disclosure can solve simultaneously the technical problem of protecting the top of the oil-free radiator as well as dissipating heat from side faces of the oil-free radiator.

What is claimed is: 
     
         1 . An oil-free radiator, comprising:
 a housing having a top plate, a bottom plate, two side walls, a front cover and a rear cover, with radiating holes disposed uniformly in the top plate;   a cavity enclosed by the housing, with one or more heating elements provided on a bottom in the cavity; and   a plurality of radiating fins perpendicularly connected to the top plate of the housing and extending to the side walls.   
     
     
         2 . The oil-free radiator according to  claim 1 , wherein the radiating fins are parallel to one another in a vertical direction of the side walls and are arranged at an equal distance, and a top of each radiating fin is arc. 
     
     
         3 . The oil-free radiator according to  claim 2 , wherein the side walls and the radiating fins are formed by connecting a plurality of integrally formed side wall-radiating fin units successively. 
     
     
         4 . The oil-free radiator according to  claim 1 , wherein the radiating fins are connected to the surface of the housing by welding, screwing or snap-fitting. 
     
     
         5 . The oil-free radiator according to  claim 3 , wherein the top plate is connected onto upper folded edges at top ends of the side walls, and the bottom plate is connected onto lower folded edges at bottom ends of the side walls. 
     
     
         6 . A method of manufacturing the oil-free radiator according to  claim 1 , comprising:
 a step S 1  of forming the housing and the cavity of the oil-free radiator, and disposing one or more heating elements within the cavity; and   a step S 2  of fixedly connecting the radiating fins to the top plate and the side walls, wherein the top of each radiating fin is perpendicularly connected to the top plate of the housing.   
     
     
         7 . A method of manufacturing the oil-free radiator according to  claim 1 , comprising:
 a step S 1  of passivating an edge of a sheet-like unit by way of cutting the sheet-like unit within the edge along a longitudinal center line, and folding the cut sheet-like unit respectively toward both sides by 90° in order to form a side wall-radiating fin unit;   a step S 2  of forming a radiating fin-side wall assembly of the oil-free radiator by connecting a plurality of side wall-radiating fin units successively; and   a step S 3  of mounting the top plate, the bottom plate, the heating element, the front cover and the rear cover.   
     
     
         8 . The method according to  claim 7 , wherein in the step S 1 , the edge of the sheet-like unit is passivated by curving the edge into a shape of an arc or L. 
     
     
         9 . The method according to  claim 7 , wherein the step S 2  further includes a step of forming an upper folded edge and a lower folded edge, respectively, by folding two longitudinal ends of the side wall of the side wall-radiating fin unit by 90°. 
     
     
         10 . The method according to  claim 9 , wherein the top plate is connected onto the upper folded edges of the side walls, and the bottom plate is connected onto the lower folded edges of the side walls.