A PTC heating component is equipped with a safety device. When used abnormally, it will automatically cut off the power to maintain safety.
Heating components that integrate together exhibit moderate heating effects. When used for heaters, individual PTCs (500 watts, 800 watts) can be controlled independently, or a dual (W, W) or triple (W, W) PTC can be implemented, which saves electricity costs and extends product life.
The electrode and the connector are connected with spot welding, preventing the electrode from becoming loose and causing resistance to increase temperature when heated, contracting when cold or expanding when hot.
The outer edge of the PTC heating component is designed with individual and dual insulation. Connecting with metal will not cause electric shocks or short circuits.
The heating component is sealed, and the electrode is not exposed, making it more suitable for use in bathrooms or areas with high humidity.
Equipped with a double insulated heating device, it can be used underwater without causing electric leakage or short circuits. When heated dry, it will not crack or burn the container.
No odor, no radiation, and will not oxidize or deplete oxygen when used for extended periods.
Fast thermal response time, low starting current. It will not cause fire sparks or flames with sudden electric supply or when in contact with flammable materials like sulfur, cotton, or paper.
Temperature controls do not require a variety of heat levels. Constant heating reduces product costs and effectively saves electricity.
The heating component can be utilized not just in heater fans but also its individual components can be applied in general home appliances.
Both AC or DC current can be applied to meet customer requirements, and special specifications can be developed according to customer needs.
Here’s what the RT curve explains for a PTC heater:
- Initial Resistance and Temperature Increase: At low temperatures, the PTC material shows relatively low resistance, allowing higher current to flow, generating heat. This part of the curve is relatively flat, indicating stable resistance over a wide temperature range. This region behaves more like a traditional resistor.
- Sharp Increase in Resistance: When the temperature reaches a certain point, known as the Curie temperature or switching temperature, the resistance of the PTC material increases dramatically. This section of the RT curve is steep, indicating that even a slight rise in temperature causes a significant increase in resistance. This is the effect of the positive temperature coefficient, which names PTC.
- Self-Regulating Region: After reaching the Curie temperature, the resistance stabilizes again, and the rate of change in resistance decreases. Here, the self-regulating property of PTC materials becomes more apparent. High resistance reduces current flow, limiting heat generation. Hence, the temperature stabilizes, preventing the material from reaching high temperatures.
- Cooling Phase: If the PTC material cools down, its resistance decreases, allowing higher current to flow, thereby increasing heat production again. This frequency effect helps maintain a relatively stable temperature.
In applications like PTC heaters, the RT curve is essential for determining the operational temperature range and ensuring safe and efficient performance. It assists engineers and designers in selecting the appropriate PTC materials for applications requiring precise thermal control and safety from thermal spikes.
Patents
United States, Taiwan, China, France, Germany, Britain
Typical Applications
- DC current can be utilized in vehicles to provide warm air, alleviate moisture, raise temperature, maintain temperature, etc., where continuous power is supplied.
- AC current can be used in general household electronic devices for hand drying, drying clothes, drying linens, drying shoes, drying dishware, moisture storage, alleviating humidity, air conditioning, ironing, electronic spoons, etc.
Notes
- We have a structure cover for the heater -W for the hot air device, front and back mesh parts available for our customers.
- We can provide technical support for developing heaters and related products.
For more information, please visit PTC Heater Supply and Wholesale.
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