Ceramic support of heat gun heating core

Abstract

The invention discloses a ceramic support of a heat gun heating core, and relates to the field of electric tools. The ceramic support is of a cylinder structure, wherein a plurality of installation supports are uniformly arranged on the cylinder, a spiral installation groove is arranged on each installation support, a heating wire is wound on the spiral installation grooves of the installation supports in a spiral manner, one end of the cylinder is an air inlet, an air ducting plane that is an inclined surface with tapered edges is arranged at the air inlet, a wire introduction hole is formedin the air inlet, and the electric heating wire enters the installation supports via the wire introduction hole. The ceramic support of the heat gun heating core provided by the invention has the advantages of improving the temperature of the air outlet of the heat gun, and meanwhile also reducing the surface temperature of the electric wire at the air outlet and reducing the difference between previous and after temperatures of the heating wire and prolonging the service life.

Description

technical field [0001] The invention relates to a ceramic bracket for a heating core of a heat gun in the field of electrical tools. Background technique [0002] A heat gun is a commonly used heating tool. The existing heating element includes an electric heating wire and a ceramic support for installing the electric heating wire. The installation groove on the ceramic support is parallel to the cross section of the ceramic support or forms a certain oblique angle, and the heating wire is generally wound in a spiral form. On the bracket, when the heating wire is installed in the installation groove, the inevitable point contact between the heating wire and the installation groove seriously affects the service life of the heating wire. [0003] The depths of the mounting grooves of the existing heating wire mounting brackets are the same, which causes that when the wind passes through, the front heating wire affects the wind passing through the surface of the rear heating wi...

AI Technical Summary

Problems solved by technology

[0002] A heat gun is a commonly used heating tool. The existing heating element includes an electric heating wire and a ceramic support for installing the electric heating wire. The installation groove on the ceramic support is parallel to the cross section of the ceramic support or forms a certain oblique angle, and the heating wire is generally wound in a spiral form. On the bracket, when the heating wire is installed in the installation groove, the heating wire will inevitably come into contact with the installation groove, which seriously affects the service life of the heating wire

[0003] The depths of the mounting grooves of the existing heating wire mounting brackets are the same, which causes that when the wind passes through, the front heating wire affects the wind passing through the surface of the rear heating wire, and the wind cannot carry the heat on the rear heating wire well. This leads to uneven temperature of the front and rear resistance wires, which affects the service life of the heating wire

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