KR100566968B1 - An electric heater of natural air convection type - Google Patents

Abstract

The present invention relates to an electric heater, and its object is to provide a natural convection type electric heater configured to heat the indoor air by using a natural convection phenomenon, so that the size of the device can be reduced and the structure can be simplified. Is in.

In the present invention, a plurality of air inlet holes are formed on the lower surface and a plurality of air outlet holes are formed on the upper surface, a plurality of heating plates installed inside the case and heated by an external power supply, and between the heating plate. The air flow path is formed, and is provided on the outside of the case, characterized in that consisting of a switch unit for intermittent the power supplied to the heating plate.

By providing a natural convection type electric heater as described above, unlike the conventional one can effectively utilize the space of the room, and has the effect of providing a heating effect to the entire room.

Description

An electric heater of natural air convection type

1 is a perspective view showing an embodiment of the present invention.

2 is a longitudinal sectional view according to FIG. 1;

3 is a cross-sectional view according to FIG. 1.

※ Explanation of codes for main parts of drawing

10: case

   11: air inlet hole 12: air outlet

   13: protrusions

20: heating plate 21: spacing area

30: air flow path

40: switch unit

   41: first switch 42: second switch

50: power cable

60: guide stand

   61: guide portion 62: blocking portion

The present invention relates to an electric heater, and more particularly, to a natural convection type electric heater installed on the wall surface to heat the air by heating in a natural convection method.

In general, electric heater is a kind of heating device configured to increase the temperature of the room by heating the air by using electric heat.It is simpler to install, cheaper to maintain, and less dangerous to fire than heating device using fossil fuel as a heat source. It is a situation that is widely used in everyday life because it has a small advantage.

Accordingly, although a conventional heating coil such as a nichrome wire is provided and a high temperature radiant heat emitted therefrom is reflected by using a reflector, an electric heater of a method of heating ambient air has been released. Since the heating coil was exposed to the outside, there was a risk of fire and burns due to careless handling, and there was a severe temperature difference between the direction in which radiant heat was reflected and other spaces.

In addition, a fan heater that raises the temperature of the room by forcibly circulating the air after inhaling and heating the indoor air has been released, but such a fan heater has the advantage of increasing the temperature of the room within a short time, Various components including a fan are provided, and thus, the device is large and complicated, so that movement and installation are not free.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the object of the configuration is to heat the indoor air by using the natural convection phenomenon, the size of the device and at the same time structure To provide a natural convection type electric heater to simplify the.

Another object of the present invention is to be able to control the temperature of the discharged air.

Another object of the present invention is to guide the direction of the air so that the supply and supply of air can be made more smoothly, and at the same time to prevent foreign matter from contacting or entering the air inlet and air outlet. .

In order to achieve the above object, the present invention provides a case in which a plurality of air inlet holes are formed on the bottom surface and a plurality of air outlet holes are formed on the top surface, a plurality of heating plates installed inside the case and heated by an external power supply; And an air flow path formed between the heating plate and a switch unit provided on an outer side of the case to control the power supplied to the heating plate, and the switch unit includes a plurality of switches to selectively control the heating plate. In the natural convection type electric heater, the upper and lower ends of the case is provided with a guide stand, the guide stand is formed to be inclined guide portion for inducing the flow of air, the end of the guide portion the air inlet hole and air outflow It characterized in that the blocking portion is formed to cover the ball.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of the present invention, Figure 2 is a longitudinal cross-sectional view according to Figure 1, Figure 3 is a cross-sectional view according to FIG.

As shown, the electric heater according to the present invention is installed in the case 10 and a plurality of heating plate 20 is heated by an external power supply, and provided on the outside of the case 10 and the heating plate It is composed of a switch unit 40 to control the power supplied to the (20), a plurality of air inlet hole 11 is formed on the lower surface of the case 10 and a plurality of air outlet hole 12 is formed on the upper surface do.

At this time, the heating plate 20 is fixed in a state spaced apart from each other by a predetermined interval between the plurality of interval holding spheres 21, the air introduced into the air inlet hole 11 is raised between the air outlet hole ( An air flow path 30 is formed to reach 12).

In addition, a power cable 50 for supplying power to the heating plate 20 is provided, the power cable 50 is introduced into the case 10 and then connected to the switch unit 40, the After branching from the switch unit 40, the heating plate 20 is grounded.

Accordingly, the cold air of the room introduced into the air inlet 11 is heated by the heat emitted from the heating plate 20 while rising through the air flow path 30 formed between the heating plate 20, The warm air formed in the process expands and continues to rise due to natural convection to be discharged into the room through the air outlet 12, thereby naturally raising the temperature of the room.

In addition, while the heating plate 20 dissipates heat, the above-mentioned natural convection phenomenon is repeated repeatedly, and the heating speed is slower than that of the conventional fan heater, but the size of the device can be reduced and the structure can be simplified. There are advantages to it.

In this case, when the switch unit 40 is divided into first and second switches 41 and 42 so as to turn on / off the heating plate 20 by half, that is, the heating plate 20 is formed. When configured to selectively intermittent, it is possible to operate the appropriate number of heating plates as needed to control the temperature of the room.

In addition, the upper and lower end of the back of the case 10 is provided with a guide base 60, the guide base 60 is formed to be inclined guide portion 61 to induce the flow of air, the guide portion ( The end of the 61 is characterized in that the blocking portion 62 is formed to cover the air inlet hole 11 and the air outlet hole (12).

Accordingly, the guide unit 61 collects cool air in the lower side of the case 10 into the air inlet hole 11 so as to smoothly supply and supply air and discharge the warm air from the air outlet hole 12. Preventing dispersion can be smoothly supplied to the room, and the blocking portion 62 can cover the air inlet hole 11 and the air outlet hole 12 to prevent foreign matter from contacting or inflowing.

In addition, a plurality of protrusions 13 are formed on the upper and lower rear surfaces of the case 10, so that they can be easily installed on the wall by fixing members such as nails or bolts.

As described above, the present invention is configured to heat the indoor air by using natural convection, so that the size of the device can be reduced and the structure can be simplified. And it has the effect of providing a heating effect throughout the room.

In addition, it is configured to selectively control a plurality of heating plate, has the effect of adjusting the temperature of the discharged air.

In addition, by providing a guide consisting of a guide portion and the blocking portion, it is possible to provide a smoother supply and supply of air to provide a quick heating effect, in addition to the foreign inlet or contact the air inlet and air outlet Since it can prevent the inflow, it has the effect of preventing the risk of failure and fire.

Claims (3)

delete delete A plurality of air inlet holes 11 are formed on the bottom surface, and a plurality of air outlet holes 12 are formed on the upper surface of the case 10, and a plurality of cases installed inside the case 10 and heated by external power supply. Switch unit for intermittent power supply to the heating plate 20, the air flow path 30 formed between the heating plate 20, the heating plate 20, the case 10 and supplied to the heating plate 20 In the natural convection type electric heater composed of a number 40, the switch unit 40 is provided with a plurality so as to selectively control the heating plate 20, Guide bases 60 are provided at upper and lower ends of the rear surface of the case 10, and guide units 61 are formed to be inclined at the guide bases 60 to induce the flow of air. At the end of the natural convection type electric heater, characterized in that the blocking portion 62 is formed to cover the air inlet hole 11 and the air outlet hole (12).

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