Analysis of the Types of Heating Elements for Hot Air Blowers
1. PTC ceramic heating element
Features: PTC ceramic heating elements have a positive temperature coefficient characteristic, featuring rapid heating and high thermal efficiency, and can provide stable heat in a short period of time. Its resistance value increases with the rise in temperature, which can automatically limit the temperature increase. It has high safety and constant temperature performance, avoiding safety hazards caused by overheating.
Advantages: Fast heating speed, good safety, long service life, and low maintenance cost.
Applicable scenarios: Suitable for household hot air fans with high requirements for safety and constant temperature performance.
2. Graphene
Features: Graphene has excellent thermal conductivity and high thermal conversion efficiency. The thermal conversion rate of high-quality graphene can reach over 98%, with almost no heat loss. It has strong thermal stability, can quickly heat up and provide stable heat supply. By rapidly raising the temperature with high power and then maintaining the temperature at low power with the material properties, it achieves the effects of rapid heating, high temperature and energy saving.
Advantages: Fast heating speed, high thermal efficiency, and good power-saving effect.
Applicable scenarios: Suitable for users who have high requirements for heating speed and energy efficiency.
3. Heating of aluminum sheets
Features: The aluminum sheet heating method provides gentle and uniform heat, making people feel more natural and avoiding the discomfort caused by excessively high temperatures.
Advantages: Uniform heating and good comfort.
Applicable scenarios: Suitable for users who have high requirements for comfort.
4. Resistance wire
Feature: Resistance wire heating is a relatively traditional method, which generates heat through the resistance heat produced when current passes through the resistance wire. The magnitude of its heat is proportional to the square of the current and the resistance value.
Disadvantages: The resistance wire may oxidize when working at high temperatures for a long time, resulting in a shortened lifespan and relatively low heating efficiency. In addition, resistance wires may emit light at high temperatures, generating certain light radiation, which is not very suitable for some environments that are sensitive to light.
Applicable scenarios: The cost is relatively low, the technology is mature, and it is suitable for some markets that are sensitive to price, such as small desktop warm air fans or simple portable warm air fans.
Tips for choosing a hot air blower
1. Select based on the type of heating element
Pursue high efficiency and safety: Choose hot air fans with PTC ceramic heating elements or graphene heating elements.
Pursuing comfort: Choose a hot air blower with aluminum sheet heating.
Limited budget: Choose a hot air blower with resistance wire heating, but pay attention to its service life and heating efficiency.
2. Pay attention to the power of the hot air blower
Choose the appropriate power according to the size of the usage space. Generally speaking, about 100 watts of power is needed for heating per square meter.
3. Consider the sweeping Angle
Choosing a hot air blower that rotates 360° up, down, left and right to sweep the air can form a three-dimensional wind field, distributing the hot air more evenly throughout the room. It has a better heating effect for large Spaces.
4. Pay attention to safety protection functions
The hot air blower should be equipped with overheat protection and overtilt protection functions, and the casing should be made of flame-retardant materials. When the internal temperature of the heater is too high or it accidentally toppling over, it can automatically cut off the power to prevent fire. Meanwhile, it is best for the shell to have an insulating layer or anti-scald design to prevent accidental burns due to excessive temperature.
5. Consider the control mode
In addition to the basic close-range touch control, you can choose a hot air blower that supports remote control or APP intelligent control, which is convenient for real-time monitoring and operation.
6. Check user reviews and brand reputation
Before making a purchase, check the reviews and feedback from other users to understand the actual usage effect of the product and any possible problems. At the same time, choosing well-known brands and products with good reputations ensures better quality and after-sales service.
