WO2007049909A1

WO2007049909A1 - An electric heating radiator

Info

Publication number: WO2007049909A1
Application number: PCT/KR2006/004361
Authority: WO
Inventors: Doo Nyun Kim
Original assignee: Chunyul Energy Co., Ltd.
Priority date: 2005-10-25
Filing date: 2006-10-25
Publication date: 2007-05-03

Abstract

The present invention relates to an electric heating radiator having electric heating wires installed in a heat radiating pipe. An electric heating radiator comprises: a heat radiating pipe on which a plurality of heat radiating fins with a corrugated surface are radially formed; a sealing device coupled to both ends of the heat radiating pipe and having an air permeable stopper; a plurality of electric heating wires fixed around an insulator built in the heat radiating pipe; a predetermined length of a sealed tube installed in the heat radiating pipe; and a cover having a temperature controller mounted on an end portion of the heat radiating pipe. Therefore, after heating the heating medium of the radiator filled in the heat radiating pipe with a high amount of heat within a short time by operating a number of electric heating wires in an early stage of the operation of the radiator so as to reach a predetermined temperature, the radiator can maintain a heating temperature almost constantly with the low and reasonable amount of heat by controlling the number of the operating electric heating wires by a temperature controller, improving the effect of heat radiation by increasing the heat radiation area in a given space occupied by the radiator.

Description

AN ELECTRIC HEATING RADIATOR Technical Field

[1] The present invention relates to an electric heating radiator, and in particular, relates to an electric heating radiator that performs heating a room by installing electric heating wires in a heat radiating pipe. Background Art

[2] The conventional electric heating radiator for room heating had a problem because a plurality of heat radiating fins radially formed around a heat radiating pipe are of a flat plate shape, therefore, the width of the heat radiating fins must be extended in a diametric direction to increase the amount of heat radiation in the space in which the radiator is installed, thereby necessitating the requirement of a larger space for the radiator.

[3] Besides, the conventional electric heating radiator has an exhaust valve on one end of a heat radiating pipe that opens to release the over-pressure from inside the heat radiating pipe to prevent the heat radiating pipe from being expanded, however, whenever the exhaust valve opens, the liquid phase of the heating medium filled in the heat radiating pipe leaks out together with gas so that the area surrounding the radiator is stained and the amount of the heating medium thus lost has to be supplemented, which is a cumbersome process.

[4] Furthermore, in the case of the conventional electric heating radiator, to heat the heating medium in the radiator, a single electric heater that emits the maximum heat is installed inside the heat radiating pipe. Then, after the radiator is heated to a predetermined temperature, the power supply to the electric heater is switched to an intermittent supply mode to control the room temperature. However, it took a long time to return to a desired temperature from the lowered temperature even with the latent heat of the heating medium that remained. Moreover, the resultant fluctuation of the room temperature is too big to maintain steady temperature in the room. Disclosure of Invention

Technical Problem

[5] It is an object of the present invention to provide an electric heating radiator for room heating comprising: a heat radiating pipe on which a number of heat radiating fins with corrugated surface are radially formed; a sealing device having an air permeable stopper through which only gaseous phase molecules can pass through mounted on both ends of the heat radiating pipe; a plurality of electric heating wires that each run around and fixed to a round insulator built in the heat radiating pipe; and a cover having a temperature controller mounted on one end of the heat radiating pipe.

[6] It is another object of the present invention to provide a radiator capable of maintaining a heating temperature steadily by stably maintaining the temperature of th e radiated heat almost constantly, improving the effect of heat radiation with its increased surface of the heat radiating fins, making it possible to release the gas from inside the heat radiating pipe to prevent the heat radiating pipe from being expanded or ruptured, thereby ensuring safety of the radiator in use. Technical Solution

[7] The present invention provides an electric heating radiator for room heating consisting of a heat radiating pipe on which a number of heat radiating fins with corrugated surface are radially formed; a sealing device having a stopper through which only gas phase molecules can pass through mounted on both ends of the heat radiating pipe; a plurality of electric heating wires that each run around and fixed to a round insulator built in the heat radiating pipe; a sealed tube of a certain length installed inside the heat radiating pipe and with water filled in the heat radiating pipe, and a cover having a temperature controller mounted on one end of the heat radiating pipe.

[8] In the present invention, the sealing device having a stopper through which only gas phase molecules can pass through employs the same 'sealing device' in the registered Korean Utility Model registration no. 20-0326909 (published on September 19, 2003) issued to the applicant of the present application, and employs the same round insulator that fixes the electric heating wire built in the heat radiating pipe in the Korean Patent No. 0518072 issued to the applicant of the present application.

[9] Since the plurality of the electric heating wires are installed in the heat radiating pipe of the radiator of the present invention, the radiator is capable of heating the heating medium, which is filled between heat radiating pipe and the sealed tube, generating high amount of heat of a predetermined level within a short time by supplying power to a plurality of the electric heating wires at the initial stage of the operation of the radiator. After the temperature reached the predetermined desired level, the number of the operating electric heating wires may be reduced by the control of the temperature controller to maintain the heating with reduced heat energy so as to maintain the room temperature steadily.

[10] Also, since the heat radiating fins of the radiator of the present invention have corrugated surface, the heat radiating area is further increased in the same space occupied by the radiator so that heat radiation effect is enhanced. Furthermore, as the width of the heat radiating fins can be formed smaller under the same amount of heat radiation, the outer diameter of the radiator can be made smaller so that an installation space for the radiator can be reduced.

[11] Besides, since the air permeable stopper is provided in the sealing device mounted on both ends of the radiator, gas within the heat radiating pipe can be discharged outward through the air permeable stopper when the inner pressure of the heat radiating pipe rises, preventing the heating medium from leaking out and preventing the over-pressure in the heat radiating pipe, thereby ensuring safety of the radiator without the risk of expansion and rupture of the heat radiating pipe due to overpressure.

Advantageous Effects

[12] After heating the water or the heating medium filled between the heat radiating pipe and a predetermined length of the sealed tube installed inside the heat radiating pipe with a high amount of heat for a short time by the plurality of the electric heating wires in an early stage of the operation of the radiator in order to reach a predetermined temperature, the radiator of the present invention can keep a heating temperature steadily by reducing the amount of heat by controlling the number of the operating electric heating wires by the temperature controller, whereby improving the effect of heat radiation by increasing the radiation area in the given space occupied by the radiator. Furthermore, the radiator of the present invention enables the user to use the radiator safely and usefully without the risk of expansion and rupture of the heat radiating pipe by releasing gas from inside the heat radiating pipe when necessary.

[13] In particular, since the volume of the heating medium can be increased or decreased by increasing or decreasing the diameter of the sealed tube in the heat radiating pipe depending upon the requirement of the volume of heat radiation, the effect of the heat radiation can be maximized, minimizing the time required for heating a room.

[14] Moreover, since the electric heating wires are fixed to the round insulator, the bent portion of the electric heating wires are protected by the insulator thereby preventing the risk of stripping off the insulating coating material from the electric heating wires.

[15] Therefore, the radiator of the present invention is efficient in availability of heat energy as well as in safety compared with the conventional radiator, so that it can be used advantageously in indoor heating, garden heating, and other industrial heating, etc.

Brief Description of the Drawings

[16] FIG. 1 is a cross-sectional view of a radiator of the present invention.

[17] FIG. 2 is an enlarged cross-sectional view showing one side end of a radiator of the present invention. [18] FIG. 3 is a transversal cross-sectional view showing a corrugated heat radiating fin of the heat radiating pipe of the present invention. [19] [DESCRIPTIONS FOR KEY ELEEMNTS IN THE DRAWINGS]

[20] 1 : heat radiating pipe If : heat radiating fin

[21] It : rib Iw : wave

[22] 2, 3 : sealing device 2a, 3a : body

[23] 2b, 3b : cap screw tube Is, 2s, 3s : screw portion

[24] 2t, 3t : air permeable stopper 4 : electric heating wire

[25] 4t : insulator 5 : cover

[26] 5a : support plate 5b : flange

[27] 5s : screw portion 5c : temperature controller

[28] R : radiator 6 : sealed tube

Best Mode for Carrying Out the Invention

[29] The present invention provides an electric heating radiator (R) consisting of a heat radiating pipe (1) on which a number of heat radiating fins (If) with corrugated surface are radially formed; a sealed tube (6) of a certain length installed via support pieces (7) inside the heat radiating pipe (1), a sealing device (2, 3) having a stopper through which only gas phase molecules can pass through mounted on both ends of the heat radiating pipe; a plurality of electric heating wires (4) that each runs around and fixed via a ring (4a) to a round insulator (4t) installed in the heat radiating pipe (1); a sealed tube (6) of a certain length installed inside the heat radiating pipe (1), with heating medium such as water filled in the space between the heat radiating pipe (1) and the sealed tube (6); and a cover having a temperature controller (5c) mounted on one end of the heat radiating pipe (1), as shown in Fig. 1.

[30] In the present invention, the sealed tube (6) inside the heat radiating pipe (1) is fixed to the heat radiating pipe (1) via support piece (7) around the sealed tube (6) and a plurality of the electric heating wires (4) run through the space between the heat radiating tube (1) and the sealed tube (6), the space between the heat radiating pipe (1) and the sealed tube (6) being filled with heating medium such as water. Because the volume of the heating medium can be increased or decreased by increasing or decreasing the diameter of the sealed tube (6) in the heat radiating pipe (1) depending upon the requirement of the volume of heat radiation, the effect of the heat radiation can be maximized, minimizing the time required for heating a room.

[31] The heat radiating pipe (1) in the radiator (R) of the present invention is formed with waves (Iw) in the corrugated surface of the heat radiating fins (If) with respect to a radial direction in the intermediary portions of the plurality of the heat radiating fins (If) radially formed on the outer circumference of the heat radiating pipe (1) as shown in FIG. 3. Further, on the outer ends of the heat radiating fins (If) of the radiator (R) of the present invention, there are T-shaped ribs (Ir) as shown in FIG. 3. The radiating area of the heat radiating fin is increased by the wave (Iw) in the given space occupied by the heat radiating fin (If) so that the amount of heat radiation increases accordingly. The physical strength of the heat radiating fin is increased by the T-shaped rib (Ir).

[32] Besides, with the above-noted structure of the heat radiating fins (If), the same amount of heat radiation can be made available as in the case of a conventional radiator even if the width of the heat radiating fin (If) is made smaller, therefore, the outer diameter of the radiator (R) can be reduced and an installation space of the radiator may be reduced accordingly.

[33] In the present invention, As shown in Fig. 1 and Fig. 2, each of the sealing devices

(2, 3) mounted on either end of the heat radiating pipe (1) of the radiator (R) comprises a body (2a, 3a) having a screw portion (2s, 3s) coupled to a screw portion (Is); an air permeable stopper (2t, 3t) installed in the body (2a, 3a); a cap screw tube (2b, 3b) fixing the air permeable stopper (2t, 3t); and a cap (2c, 3c) coupled to the end of the cap screw tube (2b, 3b). The cap (2c, 3c) and the air permeable stopper (2t, 3t) of the sealing device (3) is formed with a through-holes (3h) for the power supply wires (e) to pass through and for the gas to pass through.

[34] As shown in Fig. 2, in the cover (5) in the present invention, a support plate (5a) mounted on the end of the heat radiating pipe (1) of the radiator (R) is fixed by the body (2a, 3a) of the sealing device (2, 3) screw-coupled to each end of the heat radiating pipe (1), and the screw portion (5s) of the cover (5) on which the temperature controller (5c) is formed is screw-coupled to a flange (5b) of the support plate (5a). The external power supply wires (e) are coupled to the plurality of the electric heating wires (4) through the through-holes (3h) of the cap (3) and the stopper (3t) through the temperature controller (5c). Although the cover (5) is mounted only on one side of the radiator as shown in Fig. 1, the cover (5) may be mounted on both sides of the heat radiating pipe (1). The temperature controller (5c) is a switch type controller turning on or off a plurality of operating power supply wires, not controlling current or a voltage of the power source.

[35] Since the plurality of the electric heating wires (4) are installed in the space between the inner wall of the heat radiating pipe (1) and the outer periphery of the sealed tube (6) connected to the inner wall of the heat radiating pipe (1) by the support piece (7), the radiator (R) in the present invention is capable of heating the heating medium filled between the heat radiating pipe (1) and the sealed tube (6) with a high amount of heat generated with the heat generation of the entire electric heating wires installed, the ceiling of the heat generation temperature of each electric heating wire being 8O⁰C for the sake of safety, within a short time by supplying power to the plurality of electric heating wires (4) in an early stage of the operation of the radiator (R) in order to reach a predetermined temperature (about 6O⁰C), and after reaching the predetermined temperature, the number of the operating electric heating wires (4) is controlled by the temperature controller (5c) so that the heating medium is continuously heated maintaining a lower, steady and reasonable level of heat and temperature.

[36] In addition, since the heat radiating fins (If) of the radiator (R) of the present invention have waves (Iw) in a corrugated shape, the effect of heat radiation is further improved so that the heat can be easily radiated from the heat radiating pipe (1). Besides, since the T-shaped ribs (Ir) are formed on the ends of the heat radiating fins (If), physical durability of the heat radiating fins (If) is improved so that the heat radiating fins (If) are not easily deformed or damaged by an external impact.

[37] In addition, since the width of the radius of the heat radiating fins (If) can be formed to be smaller in the same amount of heat radiation, an outer diameter of the radiator (R) can be made smaller and thus an installation space of the radiator (R)can be further reduced.

[38] In addition, since the air permeable stopper (2t, 3t) is installed in the sealing device

(2, 3) coupled to each of the two ends of the radiator of the present invention, when pressure inside the heat radiating pipe (1) increases by the heated gas inside the heat radiating pipe (1), the gas with over-pressure can be discharged through the air permeable stopper (2t, 3t) and the heating medium is prevented from leaking out as in the case of the conventional exhaust valve to prevent over-pressure in the heat radiating pipe, ensuring safety in use without having the risk of expansion and rupture of the heat radiating pipe.

[39] Further, since the electric heating wires (4) of the present invention are fixed to the round insulator (4t) by a ring (4a), the bent portion of the electric heating wires (4) is protected by the insulator so that safety is enhanced without having risk of stripping the insulating coating material from the electric heating wires.

[40] As noted above, the radiator of the present invention is highly efficient in the availability of heat energy and in safety compared with the conventional radiator, so that it can be used advantageously in indoor heating, garden heating, and other industrial heating.

[41] In the present invention, since the heat radiating fins of the heat radiating pipe in the radiator are formed with the waves (Iw) in a corrugated form and with the T-shaped ribs, heat radiation area is increased, an outer diameter of the heat radiating fin can be made smaller, and the physical durability of the heat radiating fins (If) is improved.

[42] In addition, since the sealing device of the heat radiating pipe in the radiator of the present invention has the air permeable stopper therein, only gas phase molecules can be discharged outward preventing the leakage of the liquid phase of the heating medium thereby preventing the risk of expansion and rupture of the heat radiating pipe. [43] Further, the radiator of the present invention has an excellent advantage over the radiator in the prior art, because the sealed tube is installed in the heat radiating pipe with support pieces and the plurality of the electric heating wires are installed outside the sealed tube, the heating medium, such as water, between the heat radiating pipe and the sealed tube can reach a set temperature within a short time in an early stage of the operation of the radiator, then after arriving at the predetermined temperature, the number of the operating electric heating wires is controlled so as to maintain the heating temperature at a reasonable level, and the radiator can be used safely and efficiently. Industrial Applicability

[44] A radiator of the present invention is an electric heating radiator for heating a room or any chosen space with an electric heat of small energy by installing it in an industrial plant, for instance, keeping a steady temperature in a laboratory, in a hotel or a youth hostel, or in a green-house. Sequence Listing

[45] radiator, heat radiating pipe, heat radiating fin, sealing device, cover, temperature controller, sealed tube.

Claims

[1] An electric heating radiator comprising: a heat radiating pipe (1) on which a number of heat radiating fins (If) with corrugated surface are radially formed; a sealed tube (6) installed via support pieces (7) inside the heat radiating pipe (1), a sealing device (2, 3) having a stopper through which only gas phase molecules can pass through mounted on both ends of the heat radiating pipe; a plurality of electric heating wires (4) that each runs around and fixed via a ring (4a) to a round insulator (4t), said electric heating wires (4) being installed in the space between the inner wall of the heat radiating pipe (1) and the outer periphery of the sealed tube (6); and a cover (5) having a temperature controller (5c) mounted on one end of the heat radiating pipe (1).

[2] An electric heating radiator as claimed in claim 1, wherein the sealing device (2,

3) comprises: a body (2a, 3a) having a screw portion (2s, 3s) coupled to a screw portion (Is) on each end of the heat radiating pipe (1); an air permeable stopper (2t, 3t) installed in the body (2a, 3a); a cap screw tube (2b, 3b) fixing the air permeable stopper (2t, 3t); and a cap (2c, 3c) coupled to the end of the cap screw tube (2b, 3b).

[3] An electric heating radiator as claimed in claim 1, wherein the cover (5) installed at the end portion of the heat radiating pipe (1) comprises: a support plate (5a) mounted on the end of the heat radiating pipe (1) of the radiator (R) and is fixed by a sealing device (3); and a temperature controller (5c) which is screw-coupled to a flange (5b) of the support plate (5a).

[4] An electric heating radiator as claimed in claim 1, wherein the a plurality of electric heating wires (4) installed in the heat radiating pipe (1) and fixed around an insulator (4t) via a ring (4a) are connected with power supply wires (e) in such a way that the number of operating electric heating wires (1) are controlled by a temperature controller (5c).

[5] An electric heating radiator as claimed in claim 1 wherein the sealed tube (6) is fixed via support pieces (7) to the inner wall of the heat radiating pipe (1) in which the plurality of electric heating wires (4) are installed fixed by a round insulator (4t).