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Novel oxide dust prevention PTC (positive temperature coefficient) electric heater element

An electric heater and anti-oxidation technology, applied in the direction of the shape of the heating element, etc., can solve the problems that the heat-dissipating aluminum sheet can not be sprayed evenly, can not completely eliminate aluminum oxide, dust falling off, etc., and achieve the goal of preventing pollution and eliminating aluminum oxide production, quality saving effect

Inactive Publication Date: 2015-05-06
WUHU HENGMEI ELECTRIC HEATING APPLIANCE
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AI Technical Summary

Problems solved by technology

When the heating mode is turned on, when the fan wheel of the air conditioner and the PTC electric heater element are started successively, after the PTC electric heater element is energized due to thermal expansion and contraction, the aluminum oxide dust on the aluminum tube, cooling strip or aluminum strip will fall off , blown to the user's room with the air duct, causing a kind of environmental pollution
[0003] The invention patent application with the application number of 201310724915.2 adopts the measure of spraying Teflon paint on the electric heating element to prevent the pollution of alumina powder. Due to the dense arrangement of aluminum heat sinks, it is not possible to ensure that each heat sink is sprayed evenly during spraying, and The production of aluminum oxide cannot be completely eliminated. This method only reduces the pollution of aluminum oxide to a certain extent, but does not completely eliminate it. Therefore, it is particularly important to solve this problem

Method used

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  • Novel oxide dust prevention PTC (positive temperature coefficient) electric heater element
  • Novel oxide dust prevention PTC (positive temperature coefficient) electric heater element

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Embodiment Construction

[0013] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the examples, which are only used to explain the present invention, and do not constitute a limitation to the protection scope of the present invention.

[0014] Such as figure 1 , 2 As shown, this embodiment provides a new PTC electric heater element for preventing oxidation dust, including a heating core 1, an aluminum tube 2 and a heat dissipation strip 3, and one end of the aluminum tube 2 is provided with a heating core 1, and the The aluminum tube 2 is coated with the heat dissipation strip 3, and a protective layer is arranged on the aluminum tube 2 and the heat dissipation strip 3, and the aluminum tube 2 and the heat dissipation strip 3 are integrated. The protective layer may be an electroplating layer or an oxide layer, the electroplating layer is adhered to the aluminum pipe 2 and the heat dissipation strip 3 after electro...

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Abstract

The invention provides a novel oxide dust prevention PTC (positive temperature coefficient) electric heater element. An electroplated layer or oxide layer is uniformly arranged on each surface of the electric heater element contacting with air, generation of aluminum oxide is effectively stopped, air pollution is prevented, and dust such as aluminum oxide generated on the surfaces of the electric heater element due to direct contact of condensed water and aluminum tubes, radiating strips or aluminum strips is completely eliminated when the PTC electric heater element is used for a long time. Pollution to ambient environments is prevented, the service life is prolonged, and two processes are simple in treatment and low in cost.

Description

technical field [0001] The invention relates to the technical field of electric heating, in particular to a novel PTC electric heater element for preventing oxidation dust. Background technique [0002] At present, PTC electric heater elements have been popularized in the application of air conditioners. In split wall-mounted or cabinet air conditioner indoor units, PTC electric heater elements generally include heating cores, aluminum tubes, heat dissipation strips, etc. When not heating during use, there will be condensed water vapor attached to the PTC electric heater element, especially aluminum tubes and cooling strips will form aluminum oxide and other dust on the surface for a long time under the adhesion of water vapor. When the heating mode is turned on, when the fan wheel of the air conditioner and the PTC electric heater element are started successively, after the PTC electric heater element is energized due to thermal expansion and contraction, the aluminum oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/50
Inventor 张怀国
Owner WUHU HENGMEI ELECTRIC HEATING APPLIANCE
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