The heater part of the PTC heater assembly is located in the lower half of the heater, and is heated by the characteristics of the PTC sheet. The heater is powered by high-voltage electricity, the PTC sheet generates heat, and the heat is transferred to the heat-dissipating aluminum strip, and then the bellows fan blows air, blows across the surface of the heater, takes away the heat, and blows out warm air. The heater is compact in structure, reasonable in layout, and utilizes the space of the heater with maximum efficiency, and the safety, waterproofness, and assembly process of the heater are considered in the design to ensure the normal operation of the heater.
| Rated Voltage | 333V |
| Power | 3.5KW |
| Wind speed | Through 4.5m/s |
| Voltage resistance | 1500V/1min/5mA |
| Insulation resistance | ≥50MΩ |
| Communication methods | CAN |
Vehicle interface
(1)It is completed by the low-voltage area MCU and related functional circuits, which can realize CAN basic communication functions, bus-based diagnostic functions, EOL functions, command issuing functions, and PTC status reading functions.
(2)The power interface is composed of low-voltage area power processing circuit and isolated power supply, and both high- and low-voltage areas are equipped with EMC-related circuits;
Control function
(1)Can realize PTC switch function;
(2)Can realize PTC duty cycle control.
(2)Software protection.
Diagnostic function
(1)Low voltage voltage out of range fault.
(2)Input signal failure.
(3)High voltage area power failure.
(4)High voltage overvoltage and undervoltage fault.
(5)PTC short circuit and open circuit fault.
(6)IGBT short circuit and open circuit fault.
(7)Temperature sensor failure.
(8)Over-temperature fault.
Hebei Nanfeng Automobile Equipment (Group) Co.,Lid is a group company with 5 factories, that specially produce heaters and heater parts for more than 30 years. We are the leading parking heater manufacturers in China.
Our factory's production units are equipped with high tech machineries, strict quality control testing devices and a team of professional technicians and engineers endorsing the quality and authenticity of our products.
In 2006, our company has passed ISO/TS16949:2002 quality management system certification. We also bagged the CE certificate and Emark certificate making us amongst the only few companies in the world acquiring such high level certifications.
Currently being the largest stakeholders in China, we hold a domestic market share of 40% and then we export them around the globe particularly in Asia, Europe and Americas.
Meeting the standards and demands of our customers have always been our top priority. It always encourages our experts to continuously brain storm, innovate, design and manufacture new products, impeccably suitable for the Chinese market and our customers from every nook of the world.
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