Adhesive type ceramic PTC (positive temperature coefficient) heater and manufacturing method

A heater and ceramic technology, applied in the direction of the shape of the heating element, can solve the problems of deteriorating the living room environment, etc., and achieve the effect of high heat transfer efficiency and improved heating effect

Inactive Publication Date: 2013-01-16
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The lead pollution caused by this cannot be underestimated. During the user's use, the PTC heater works at a relatively high temperature, the activity of lead

Method used

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  • Adhesive type ceramic PTC (positive temperature coefficient) heater and manufacturing method
  • Adhesive type ceramic PTC (positive temperature coefficient) heater and manufacturing method
  • Adhesive type ceramic PTC (positive temperature coefficient) heater and manufacturing method

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Example Embodiment

[0030] like figure 1 , 2 , 3, the adhesive ceramic PTC heater mainly includes a heating element 1 and a heat sink 2, such as Figure 4 As shown, the heating element 1 includes an aluminum tube 11, a PTC sheet 12, an electrode 13 and an insulating film 14; after the PTC sheet 12 is arranged in a strip-shaped array, the aluminum powder electrodes are uniformly sprayed on both sides as a whole, and the aluminum powder electrodes are placed on the aluminum powder electrodes. The surface is evenly coated with thermally conductive adhesive, and then the electrodes 13 are adhered to both sides of the PTC sheet 12 through the thermally conductive adhesive, and the contact resistance is 5 ohms; the overall outer surface formed by the PTC sheet 12 and the electrode 13 is coated with thermally conductive adhesive. And the whole is wrapped in the insulating film 14; the overall outer surface composed of the PTC sheet 12, the electrode 13 and the insulating film 14 is coated with thermall...

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Abstract

The invention discloses an adhesive type ceramic PTC (positive temperature coefficient) heater and a manufacturing method. The ceramic PTC heater comprises a heating body and heat radiators, wherein the heat radiators are adhered on two sides of the heating body via conductive adhesives, and the heating body and an internal aluminum bar as well as the internal aluminum bar and heat radiator fins and an external aluminum bar are directly connected by conductive adhesives. Original brazing welding mode is improved, processing is simpler and higher in efficiency, lead pollution caused by brazing welding is avoided and the adhesive type ceramic PTC heater is more environment-friendly. The adhesive type ceramic PTC heater is used as an auxiliary electric heater on a split indoor unit of an air conditioner, a cabinet air conditioner, a movable air conditioner and an air heater. Due to the fact that channels which are originally air gaps are compactly filled by the conductive adhesives, thermal transmission efficiency is higher and heating effect is obviously improved as compared with that of other common PTC heaters.

Description

technical field [0001] The invention belongs to the field of electric heating for air conditioners, in particular to an adhesive ceramic PTC heater with positive temperature coefficient characteristics and a manufacturing method. Background technique [0002] At present, ceramic PTC heaters used for auxiliary heating of air conditioners are mainly formed by brazing and welding of aluminum tubes and heat sinks, aluminum strips and heat sinks by Al-Si based brazing filler metals. [0003] In order to ensure low melting point of solder, good wetting performance and excellent mechanical properties, adding lead has become the main choice for most solders. Although lead-free solder is also being continuously researched and developed, "lead-free" does not mean that the solder does not contain any lead element, but only controls the lead content within a certain range. [0004] The lead pollution caused by this cannot be underestimated. During the user's use, the PTC heater works a...

Claims

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Application Information

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IPC IPC(8): H05B3/50
CPCH05B3/50H05B3/52H05B2203/023H05B2203/017F24H3/0405F24H9/1827
Inventor 陈保平许行臻
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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