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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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  • Application Information

AI Technical Summary

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 is improved, and it is easier to participate in the indoor air circulation with the air flow of the air conditioning duct, which deteriorates the living environment.

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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Embodiment Construction

[0030] Such as figure 1 , 2 , 3, the adhesive ceramic PTC heater mainly includes a heating element 1 and a cooling device 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 sheets 12 are arranged in a strip array, aluminum powder electrodes are evenly sprayed on both sides of the whole, and the aluminum powder electrodes are The surface is evenly coated with heat-conducting adhesive, and then the electrodes 13 are respectively bonded to the two sides of the PTC sheet 12 through the heat-conducting adhesive, and the contact resistance is 5 ohms; the overall outer surface composed of the PTC sheet 12 and the electrode 13 is coated with heat-conducting adhesive And the whole is wrapped in the insulating film 14; The overall outer surface of the PTC sheet 12, the electrode 13 and the insulating film 14 is coated with a heat-conducting glue and penetrates into the aluminum tube...

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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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