Structure for enhancing a heat exchange rate of an electric radiator

Abstract

A structure for enhancing a heat exchange rate of an electric radiator is especially used in the electric radiator which applies a mineral oil to transmit the heat, such that a higher heat exchange rate can be achieved at a circulation part of related oil leaf. A relative distance between inner pipe walls of the oil loop is shortened, and a ratio of a long side to a short side of the loop is set to be greater than 6:1, which enables a flowing heat-transmission oil to easily break through a threshold Reynolds number to form a turbulent flow. On the other hand, heat-carrying particles of small specific heat are mixed into the oil body to improve the effect of heat transmission.

1 . A structure for enhancing a heat exchange rate of an electric radiator, used in an oil-leaf electric radiator to improve a heat exchange rate of the oil leaves, comprising an oil leaf, and a longitudinal breadth of which is provided with at least one loop; a circulation zone being defined inward by a periphery of the loop, and an upper and lower end of the loop being connected with oil packages which are penetrated with a heater, so as to form a circulation path for a heat transmission oil; a cross section of the loop installed in the oil leaf being constituted by a long side and a short side to form the loop with a rectangular hole, the long side being parallel to the breadth of oil leaf, and a ratio of the long side to the short side preferring to be 6:1. 
   
   
       2 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein more than two loops are arranged in parallel, and the circulation zone is formed by assembling with the upper and lower oil packages. 
   
   
       3 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein a flow distribution area is located from an outside of the circulation zone to an interior of edging line at a periphery of the oil leaf. 
   
   
       4 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 2 , wherein a flow distribution area is located from an outside of the circulation zone to an interior of edging line at a periphery of the oil leaf. 
   
   
       5 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein the loop is made by assembling two opposite half parts. 
   
   
       6 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein the loop is made by a half part affixed with a front leaf in a shape of flat plate. 
   
   
       7 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 6 , wherein the half part is a trapezoidal hole. 
   
   
       8 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 5 , wherein corners of the short side of loop are connected with the long side in a straight angle. 
   
   
       9 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 6 , wherein corners of the short side of loop are connected with the long side in a straight angle. 
   
   
       10 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 5 , wherein corners of the short side of loop are connected with the long side in a slant angle. 
   
   
       11 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 6 , wherein corners of the short side of loop are connected with the long side in a slant angle. 
   
   
       12 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 5 , wherein corners of the short side of loop are connected with the long side along an arc line. 
   
   
       13 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 6 , wherein corners of the short side of loop are connected with the long side along an arc line. 
   
   
       14 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 12 , wherein the cross section of loop which is made by connecting the long side along the arc line with the short side is a long elliptic hole. 
   
   
       15 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 13 , wherein the cross section of loop which is made by connecting the long side along the arc line with the short side is a long elliptic hole. 
   
   
       16 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 12 , wherein the cross section of loop which is made by connecting the long side along the arc line with short side is a long eye-shape hole. 
   
   
       17 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 13 , wherein the cross section of loop which is made by connecting the long side along the arc line with short side is a long eye-shape hole. 
   
   
       18 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 5 , wherein a breadth of long side of loop is concaved with an enhancing ridge. 
   
   
       19 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 6 , wherein a breadth of long side of loop is concaved with an enhancing ridge. 
   
   
       20 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 18 , wherein the enhancing ridges at a front and a rear side are staggered. 
   
   
       21 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 19 , wherein the enhancing ridges at a front and a rear side are staggered. 
   
   
       22 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein the oil leaf is made by punching a plastic metal plate. 
   
   
       23 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein an outer surface of the oil leaf is provided with a far infrared transformation device. 
   
   
       24 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 23 , wherein the transformation device is formed by covering on a surface of the oil leaf with a layer of coating which is able to transform the far infrared rays. 
   
   
       25 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 1 , wherein an interior of the loop is formed with a rough surface. 
   
   
       26 . A structure for enhancing a heat exchange rate of an electric radiator, used in a loop-type electric radiator within which a heat transmission medium is flowing, to improve an effect of heat transmission, comprising a mineral oil of high vaporization point; an interior of the aforementioned heat transmission oil containing heat-carrying particles which is driven by the oil body. 
   
   
       27 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 26 , wherein the heat-carrying particle is a metallic grain. 
   
   
       28 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 26 , wherein the heat-carrying particle is a metallic oxide. 
   
   
       29 . A structure for enhancing a heat exchange rate of an electric radiator, used in an electric radiator within which a heat transmission medium is flowing, and being provided with a high efficiency of heat transmission and an eco-function, comprising a liquid of low condensing point and high vaporization point as a hot medium which is formed by mixing fresh water with ethylene glycol according to a ratio of about 5:5 to 7:3. 
   
   
       30 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 29 , wherein an interior of the hot medium is added with the heat-carrying particles made by the metallic grains. 
   
   
       31 . The structure for enhancing a heat exchange rate of an electric radiator according to  claim 29 , wherein an interior of the hot medium is mixed with the heat-carrying particles made by the metallic oxide.