CN201774686U - Platy electric heating element with equalized temperature - Google Patents

Abstract

The utility model discloses a platy electric heating element with equalized temperature, which consists of an insulating bottom plate, heating bodies and a connecting circuit and is characterized in that the insulating bottom plate is provided with the heating bodies which are regularly arranged in the mode of three rows in the transverse direction and six lines in the vertical direction, wherein the heating bodies are made by adopting electric heating membrane which is made from insulating substrate mica material and has surface modification; the resistance value and unit area power are determined by the thickness of the electric heating membrane layer and the sizes of the heating bodies; the heating bodies are connected by circuits connected in parallel or in series; the power of the lower row of heating bodies occupies 40%-60% of the total power; the power of the middle row of heating bodies occupies 25%-40% of the total power; the power of the upper row of heating bodies occupies 10%-25% of the total power; and the power of the heating bodies in the left line and the right line is 1.5-2 times of the power of the heating bodies in the middle lines. The platy electric heating element has the advantages of realizing the temperature equalizing of the whole panel and reducing the average temperature of the heating panel, thus improving the heat use ratio of the heating panel and prolonging the service life thereof and further achieving the energy-saving purpose. The platy electric heating element is applicable to temperature equalizing on the whole surface.

Description

A kind of tabular electrical heating elements of temperature equalization

Technical field

The utility model belongs to electrical heating elements, particularly a kind of tabular electrical heating elements.

Background technology

At present, existing on the market multiple tabular electrical heating elements; It is little that tabular electrical heating elements has thermal inertia, quick heating, heating characteristics such as even.But existing tabular electrical heating elements when in use vertically placing, because cross-ventilated effect causes whole non-uniform temperature, has influenced the result of use and the heat efficiency because its heating area is big.

Summary of the invention

The purpose of this utility model is a kind of electrical heating elements that makes whole surface temperature equilibrium of design.Guarantee that the heating board surface temperature is even, improve efficiently radiates heat area and radiating effect, reduce the local surfaces temperature, make the temperature equalization of whole plate face, reach more comfortable, more rational heating effect.

The technical scheme that the utility model adopted is: a kind of tabular electrical heating elements of temperature equalization, form by insulating base, heater, connecting circuit, horizontal three rows, the regularly arranged heater of vertical six row are set on the insulating base, heater is made by the Electric radiant Heating Film of insulating substrate mica material surface modification, determine its resistance value and unit are power by Electric radiant Heating Film thicknesses of layers and heater size, connect with series, parallel or series-parallel circuit between the heater;

Tabular electrical heating elements is erect when placing, the power of arranging heater down accounts for 40%～60% of gross power, the power of middle row's heater accounts for 25%～40% of gross power, the power of last row's heater accounts for 10%～25% of gross power: the heater power of each row of left and right both sides is 1.5～2 times of middle each row heater power, gradually reduces power by each row of both sides to each row of centre.

When tabular electrical heating elements heating power, because the effect of natural convection air, hot-air upwards promotes, row's radiating condition is good down for heating board, so increase heating power, arrange power down and account for 40%～60% of gross power, and heated following row through the air-flow of arranging in the heating board, the not following row of the radiating condition of arranging in the heating board, so the power of arranging in the heating board accounts for 25%～40% of gross power, last row is the outlet of hot-air free convection, and its radiating condition is worst position, so the power of arranging on the heating board accounts for 10%～25% of gross power.In the left and right and middle part of heating board, because the influencing each other of heater adstante febre, the heat-sinking capability that is positioned at the heater of middle part can not show a candle to the heater on left and right both sides, and therefore, left and right both sides power is 1.5～2 times of middle part power.

The utility model has the advantages that: changed the mode of heating of tabular electrical heating elements in the past, what tabular in the past electrical heating elements was only considered is the self-heating uniformity, and has ignored service condition.The utility model is exactly the painstakingly inhomogeneities heating that utilizes tabular electrical heating elements, adapts to the difference of service condition, thereby eliminates localized hyperthermia, reduces the temperature difference of plate face, realizes the harmony of the temperature of whole plate face.Reduce the mean temperature of heating board face, heat has been delivered in the space as much as possible goes exactly, thereby improved the heat utilization efficiency of heating board, reached purpose of energy saving, prolonged the useful life of heating board simultaneously.

The utility model is applicable to the tabular electrical heating elements of whole surface temperature equilibrium.

Description of drawings

Below in conjunction with drawings and Examples, the utility model will be further described

Fig. 1 is the tabular electrical heating elements inner heat body combination schematic diagram of a kind of temperature equalization of the present utility model

Among the figure, 1-is row's heater down, and 1-1-is row's 1 row heater down, and 1-2-is row's 2 row heaters down, and 1-3-is row's 3 row heaters down, and 1-4-is row's 4 row heaters down, and 1-5-is row's 5 row heaters down, and 1-6-is row's 6 row heaters down,

Arrange heater among the 2-, row's 1 row heater among the 2-1-, row's 2 row heaters among the 2-2-, row's 3 row heaters among the 2-3-, row's 4 row heaters among the 2-4-, row's 5 row heaters among the 2-5-, row's 6 row heaters among the 2-6-,

The last row of 3-heater, the last row's 1 row heater of 3-1-, the last row's 2 row heaters of 3-2-, the last row's 3 row heaters of 3-3-, the last row's 4 row heaters of 3-4-, the last row's 5 row heaters of 3-5-, the last row's 6 row heaters of 3-6-,

The 4-insulating base, the 5-connecting circuit

Embodiment

As seen from Figure 1, the tabular electrical heating elements of a kind of temperature equalization of the present utility model, by row's heater 3, middle row's heater 2 on the horizontally set on the insulating base 4, arrange heater 1 down and form, heater is made by the Electric radiant Heating Film of insulating substrate mica material surface modification, determine its resistance value and unit are power by Electric radiant Heating Film thicknesses of layers and heater size, connect with series, parallel or series-parallel circuit 5 between the heater;

Tabular electrical heating elements is erect when placing, and wherein the power of the row's of going up heater 3 accounts for 20% of gross power, and middle row's heater 2 accounts for 35% of gross power, and following row's heater 1 accounts for 45% of gross power; Both sides heater power accounts for 25% of this row's heater power, and both sides heater power accounts for this row's heater power 15%, and middle heater power accounts for 10% of this row's heater power; That is: heater 1-1 in the left side accounts for down 25% of row's heater 1 power, is 45% * 25%=11.25% of gross power;

Arrange 25% of heater 2 power during left side heater 2-1 accounts for, be 35% * 25%=8.75% of gross power;

Left side heater 3-1 accounts for down 25% of row's heater 3 power, is 20% * 25%=5.00% of gross power;

Left side heater 1-2 accounts for down 15% of row's heater 1 power, is 45% * 15%=6.75% of gross power;

Arrange 15% of heater 2 power during left side heater 2-2 accounts for, be 35% * 15%=5.25% of gross power;

Left side heater 3-2 accounts for 15% of row's heater 3 power, is 20% * 15%=3.00% of gross power;

Middle heater 1-3 accounts for down 10% of row's heater 1 power, is 45% * 10%=4.50% of gross power;

Arrange 10% of heater 2 power during middle heater 2-3 accounts for, be 35% * 10%=3.50% of gross power;

Middle heater 3-3 accounts for 10% of row's heater 3 power, is 20% * 10%=2.00% of gross power;

Left and right sides power is symmetrically distributed, and promptly 1-1,1-2,1-3 equate with the power of 1-6,1-5,1-4 respectively, and 2-1,2-2,2-3 equate with the power of 2-6,2-5,2-4 that respectively 3-1,3-2,3-3 equate with the power of 3-6,3-5,3-4 respectively.

Using method of the present utility model is: the tabular electrical heating elements of temperature equalization is installed and fixed, insert power supply, heating starting, raising along with temperature of heating plate, and the difference of the heat-sinking capability of its diverse location, whole heating board surface temperature trend is stable, balanced, improves the temperature of entire circumference environment space more quickly and effectively.

Claims (1)

1. the tabular electrical heating elements of a temperature equalization, form by insulating base, heater, connecting circuit, it is characterized in that, horizontal three rows, the regularly arranged heater of vertical six row are set on the insulating base, heater is made by the Electric radiant Heating Film of insulating substrate mica material surface modification, connects with circuit between the heater.

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