The tungsten filament in the halogen infrared heating lamp is made into a double helix:
1. Improve the efficiency of luminescence and heating
Increase the luminous area: The double helix structure greatly increases the total length of the tungsten filament, providing a larger luminous surface area in a limited space. This enables more electrical energy to be converted into infrared radiation, improving the output power and heating efficiency of the heating lamp.
2. Enhance stability and life
1. Mechanical stability:
– The double helix structure makes the tungsten filament more durable. It can better withstand the thermal and mechanical stresses during heating and cooling, reducing the possibility of tungsten filament breakage.
– The spiral shape can also provide a certain degree of elasticity, which plays a buffering role when it is impacted by external forces, further improving the mechanical stability of the tungsten filament.
2. Electrical stability:
– The resistance of the double helix tungsten filament is relatively more stable. Due to its special structure, the current is more evenly distributed in the tungsten filament, reducing the risk of resistance mutation and local overheating.
– This stability helps to extend the service life of the heating lamp and reduce power fluctuations and bulb damage caused by resistance changes.
3. Improve heat dissipation performance
1. Increase heat dissipation area: The double helix structure significantly increases the surface area of ​​the tungsten filament, thereby improving heat dissipation efficiency. During the working process, the heat generated by the tungsten filament can be dissipated faster, reducing the working temperature of the tungsten filament.
2. Promote air convection: The double helix shape is conducive to the flow of air inside the heating lamp, forming natural convection, which further enhances the heat dissipation effect. Good heat dissipation performance can reduce the aging and damage of the tungsten filament and extend the service life of the heating lamp.
