JP4570123B2 - Electric heater - Google Patents

Description

【Technical field】
[0001]
The present invention relates to a heating device, and more particularly to an electric heater used indoors.
[0002]
[Background]
As people's living standards steadily improve, more and more homes use electric heaters. Existing electric heaters include a main body and a heating element mainly having two types of structural forms.
[0003]
One has a reflector located within the body, which radiates the thermal energy generated by the heating element to heat and warm a particular space. Some electric heaters of this type have a fan in the body. This type of electric heater can only raise the temperature of the local space. If the heater is switched on for a while, even if the temperature of the local space is very high, the rise in the space temperature in other parts of the same room is still very limited. People still feel cold when going from a heated local space to the rest of the room. Since this type of electric heater can only heat a limited space and has a low thermal effect, much heat energy is wasted.
[0004]
Another type has a column in the body. There is a hollow space in the column. The hollow space is filled with thermally conductive oil. As the heat conductive oil that is heated rises, the thermal energy generated by the heating element causes heat circulation in the column. Due to the convection action between the columns from the top of the electric heater, a large amount of heat goes out into the room air and the room temperature rises to the required temperature. However, in this form, the electric heater warms up slowly. After switching on, it takes a long time for people to feel warm. Moreover, its structure is complex, large, heavy and difficult to move. Since the column is filled with thermally conductive oil and a high hermetic seal is required, these electric heaters are expensive to manufacture.
[Problems to be solved by the invention]
[0005]
The present invention solves the aforementioned problems.
[Means for Solving the Problems]
[0006]
The present invention relates to an electric heater including a main body in which a heating element and a reflector are arranged. The reflecting surface of the reflector is disposed toward the heating element. The body has a radiation conductive sheet made of heat resistant material. The heating elements are arranged at intervals and pass through holes formed in the radiation conductive sheet.
[0007]
Since the reflector is arranged in the present invention, by the radiation of the reflector, the present invention can be heated quickly a particular space. In addition, since a radiation conductive sheet made of a heat-resistant material is disposed in the present invention , the air in the electric heater starts to convect in the vertical direction due to the principle that the air rises when warmed and descends when cooled. Replace the heat. Continuous heat circulation warms the indoor air and raises the temperature of the entire room.
BEST MODE FOR CARRYING OUT THE INVENTION
[0008]
Hereinafter, with reference to the accompanying drawings, which illustrate several embodiments of the present invention will be described as an example the invention in more detail.
[0009]
Reference example 1
The reference example 1 relates to an electric heater including a main body 1 in which a heating element 11 and a reflector 14 are arranged. The heating element 11 can be an infrared heating element, a halogen heating element, or another heating element that converts electrical energy into heat. The main body 1 includes a left cover 2, a right cover 3, an upper cover 4, and a lower cover 5. The reflecting surface of the reflector 14 is disposed toward the heating element. Within the body is a radiation conductive sheet 12 made of a heat resistant material. The heat resistant material may be stainless steel, copper, aluminum, heat resistant non-metal, or the like. The link rod 13 passes through the radiation conductive sheet 12, as shown in FIG. 5, and both ends of the link rod 13 are bolted to the left and right covers 2 and 3, so that the radiation conductive sheet 12 is As shown in FIGS. 3 and 4, it is fixed to the main body 1. The heating elements 11 are arranged at intervals and pass through holes 19 formed in the radiation conductive sheet 12. The inner diameter of the hole 19 is larger than the outer diameter of the heating element 11. There is always a space of about 0.5 mm to 5 mm between the inner edge of the hole 19 and the outer edge of the heating element 11. The space between the hole 19 and the heating element 11 avoids damage caused by the hot expanded radiating conductive sheet and not only operates the heating element 11 normally, but also provides sufficient vertical convection. . The radiation conductive sheet 12 can be rectangular or other shapes that conform to the shape of the body 1 and can even be irregularly shaped. In order to enhance radiant heat and vertical convection, the radiation conducting sheet 12 can be provided with various diversion grooves and undulations.
[0010]
1 and 4 also have a metal protective net and mesh 18 to prevent the user from inadvertently touching the hot heater.
[Example 1]
[0011]
There is a groove in the body 1. The radiation conductive sheet 12 passed through the opening of the reflector 14 is inserted into the groove of the main body 1 and fixed to the main body without the link rod 13. Other structures are the same as those in Reference Example 1.
[0012]
Reference example 2
The holes 19 drilled in the radiation conductive sheet 12 can be circular sealed or non-sealed slots. Other structures are the same as those in Reference Example 1.
[Brief description of the drawings]
[0013]
FIG. 1 is a three-dimensional view of an electric heater according to the present invention .
2 is a diagram showing an internal structure of Reference Example 1. FIG.
FIG. 3 is a side view in the direction B of FIG. 2;
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a schematic diagram showing an embodiment of a radiation conductive sheet connected to a link rod.
FIG. 6 is a schematic diagram showing an embodiment of a hole drilled in a radiation conductive sheet.
FIG. 7 is a schematic diagram showing another embodiment of a hole (slot) drilled in the radiation conductive sheet.

Claims (4)

A heating body (11) and a reflector (14) are disposed therein, and a reflecting surface of the reflector (14) is disposed toward the heating body (11). 1) The upper part has an opening (18) for smoothing the convection function, and there is a radiation conductive sheet (12) made of a heat-resistant material in the main body (1). ) Are arranged at intervals and pass through holes (19) drilled in the radiation conductive sheet (12), the radiation conductive sheet comprising a heating element (11) and a reflector ( 14) are arranged at appropriate intervals so as not to disturb the heat radiation from, and are provided with undulations on the surface to enhance radiant heat and vertical convection, the body (1) has grooves, radiation conduction The sheet (12) passes through the opening of the reflector (14) and is inserted into the groove of the body (1) and fixed. Electric heating machine, characterized in that. The inner diameter of the hole (19) is larger than the outer diameter of the heating element (11), and there is always a space between the inner edge of the hole (19) and the outer edge of the heating element (11). The electric heater as described. Electric heater according to claim 1, characterized in that the heating element (11) is an infrared heating element, or a halogen heating element, or another heating element that converts electrical energy into heat. Electric heater according to claim 1, characterized in that the hole (19) drilled in the radiation conductive sheet (12) is a circular sealed or unsealed slot.

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