A heating component of an electric heating air gun

Abstract

The invention relates to a heating component of an electric heating blower gun. The heating component comprises a base formed by splicing a plurality of insulating plates, and electric heating wires wound on the base, wherein an insulating support is arranged in a space formed by the adjacent insulating plates and the electric heating wires, the electric heating wires are wound on the insulating support, the insulating plates and the insulating support are provided with structures capable of preventing the electric heating wires from being misplaced, the insulating plates and the insulating support are provided with a plurality of grooves capable of accommodating the electric heating wires; distances between the adjacent grooves are not equal. The heating component has the advantages that the manufacturing cost is not increased, the structure is novel and simple, self temperature of the heating component can be effectively reduced, the heating temperature of workpieces discharged at an air outlet is increased, the heating efficiency is improved, and the service lives of machines are prolonged.

Description

technical field [0001] The invention relates to a heat gun, in particular to a heating component of an electric heat gun. Background technique [0002] In the existing heat gun heating components, since the insulating plate (usually a mica plate) used to support the heating wire and the ceramic bracket supporting the heating wire are only wound by the heating wire to fix the relative position, when the machine is impacted by an external force Or the thermal deformation of the heating wire can easily cause the dislocation of the insulating plate and the ceramic support, resulting in a short circuit between the turns of the heating wire, which affects the shock resistance and drop resistance of the machine and the service life. [0003] Since the cooling air flow of the heat gun is blown out from the fan at the rear of the machine, the heat gradually increases and accumulates step by step with the number of turns of the heating wire. In the current winding of the heating elem...

AI Technical Summary

Problems solved by technology

In the current winding of the heating element of the heat gun, the spacing between each circle is equal. Due to the uneven distribution of the temperature zone, the front part of the air duct is heated far more than the rear part. Easy to fuse and shorten life

In addition, in the entire ventilation section of the air duct, the heating wires of the current hot air guns are arranged in a straight line front and back. Due to the blocking effect of the rear heating wires on the front row, the heating wires reaching the front of the air duct are cooled. The worse the effect, the lower the utilization rate of the fan air volume, and the high temperature of the front heating wire often leads to early damage to the front heating wire, which will cause the outer surface of the front part of the air duct to oxidize and blacken, which will affect the life and appearance of the air duct.

[0004] At present, the rear part of a group of several ceramic brackets in the heating components on the market is the same as the cross-section and a large plane perpendicular to the air flow direction, which greatly increases the drag coefficient and affects the air volume, so that a large part of the air volume is reflected back. Causes air turbulence, which eventually leads to insufficient cooling of the heating wire and affects its life, and also reduces the temperature of the air outlet

Images