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Spraying membrane heater for porous ceramic block

A technology of porous ceramics and heaters, used in electric heating devices, ohmic resistance heating, ohmic resistance heating components, etc., can solve the problem of large space occupation, achieve high heating efficiency, realize power changes, and increase the effect of area

Pending Publication Date: 2018-02-16
WUHU ALDOC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heating efficiency of this electric heating structure is improved, and the heating speed is accelerated. However, due to the limitation of the surface area of ​​the substrate, the power of this heater can only be limited to a certain range. To achieve high-power heating, the volume of the substrate needs to be large enough , has the disadvantage of taking up a lot of space

Method used

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  • Spraying membrane heater for porous ceramic block
  • Spraying membrane heater for porous ceramic block
  • Spraying membrane heater for porous ceramic block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to figure 1 , The main body of the heater of the present invention is a ceramic base material 1, and the ceramic base material 1 preferably adopts ninety-five alumina porcelain. The ceramic base material 1 can be in a regular shape such as a square, a truncated cone, a sphere, or an irregular shape.

[0026] Perforations 2 are distributed on the ceramic substrate 1 . The setting method of the perforation 2 can be flexibly changed and set according to the required heating effect. Specifically, the distribution position and distribution number of the through holes 2 on the ceramic base material 1 , the shape and area size of the through holes 2 can be flexibly changed. For example, for the distribution position, the perforation 2 can be as attached figure 1 As shown in the embodiment of the present invention, it is distributed on the entire ceramic substrate 1, and may also be different from the structure of this embodiment, and is only distributed on a part or s...

Embodiment 2

[0032] refer to figure 2 , The main body of the heater of the present invention is a ceramic base material 1, and the ceramic base material 1 preferably adopts ninety-five alumina porcelain. The ceramic substrate 1 is elongated, and the ceramic substrate 1 is distributed with perforations 2 . The perforations 2 are distributed on the entire ceramic substrate 1 . The perforations 2 are arranged at intervals, and the number of the perforations 2 is small; the perforations 2 are rectangular. This kind of structural setting can increase the specific surface area, and the ceramic base material 1 with a small volume can achieve the effect of high-power heating, and improve the space utilization rate; the injection mold in the hole is convenient.

[0033] The shape and area of ​​perforation 2 are exactly the same.

[0034] A heating film 3 is spray-coated on part or all of the inner wall surfaces of part or all of the perforations 2 and part or all of the surface of the ceramic sub...

Embodiment 3

[0041] refer to image 3 , The main body of the heater of the present invention is a ceramic base material 1, and the ceramic base material 1 preferably adopts ninety-five alumina porcelain. The ceramic substrate 1 is elongated.

[0042] Perforations 2 are distributed on the ceramic substrate 1, and the perforations 2 are distributed on the entire ceramic substrate 1. The perforations 2 are arranged at intervals, and the number of the perforations 2 is small; the perforations 2 are square, and the shape and area of ​​the perforations 2 are exactly the same.

[0043] A heating film 3 is spray-coated on part or all of the inner wall surfaces of part or all of the perforations 2 and part or all of the surface of the ceramic substrate 1 .

[0044] There are 6 electric electrodes 4, which are A, B, C, D, E and F respectively. The six power-connecting electrodes 4 are respectively connected to the heating film 3 , and the resistance between two power-connecting electrodes is affec...

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Abstract

The invention discloses a spraying membrane heater for a porous ceramic block. The spraying membrane heater comprises a ceramic base material and at least two electricity connection electrodes arranged on the surface of the ceramic base material. Through holes are formed in the ceramic base material. Heating films are sprayed one part or all inner wall surfaces of one part or all of the through holes and one part or all of the surfaces of the ceramic base material. The heating films are connected as one piece, the heating films are connected with the electricity connection electrode. The areaof the heating films is greatly increased, so that the heater can realize the high-power heating function at a small volume. Therefore, the heater is high in heating efficiency. Different electricityconnection electrodes are arranged to be connected with a power supply, and the resistance value of heating films between the electricity connection electrodes can be changed. Therefore, the change ofthe power is realized. The porous shape enables the heat transmission to be more efficient.

Description

technical field [0001] The invention belongs to electric heating structure technology, in particular to a porous ceramic block spray film heater. Background technique [0002] Electric heaters are widely used in various heating appliances and household appliances. Traditional electric heaters are generally made of electric heating wires, PTC heating sheets or heating tubes. This kind of heater has the disadvantages of simple structure, low heating efficiency, slow heating speed, and large thermal inertia. Now some electric heaters are realized by electric heating film. Specifically, the heating film is sprayed on the surface of the substrate, and the heating film is heated by supplying power to the heating film during operation. The heating efficiency of this electric heating structure is improved, and the heating speed is accelerated. However, due to the limitation of the surface area of ​​the substrate, the power of this heater can only be limited to a certain range. To a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/02H05B3/03H05B3/20
CPCH05B3/02H05B3/03H05B3/20
Inventor 周初效胡如国刘涛
Owner WUHU ALDOC TECH CO LTD
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