EVLINK S PTC Electric Heaters For Electric Bus Heating Solutions

EVLINK Automotive Water Heater Innovations

Introduction

In recent years, with increasingly stringent environmental policies and the continuous development of new energy technologies, electric buses have gradually gained a foothold in the market due to their unique advantages. Compared to traditional diesel buses, electric buses not only have significant environmental benefits but also offer cost savings in long-term operations for enterprises.
The advantages of electric buses are mainly reflected in two aspects. Firstly, from an environmental perspective, electric buses can significantly reduce exhaust emissions, contributing positively to air quality improvement. This is especially important today, given the frequent occurrences of heavy pollution weather. Secondly, although the initial purchase cost of electric buses is higher, their operating costs are lower. Over the long term, the total cost is significantly lower than that of diesel buses.
 
 
 

 
EVLINK's PTC electric heaters play a critical role in electric buses. These 20kW PTC liquid heaters can provide sufficient heating power, enabling electric buses to quickly increase the cabin temperature even in extremely cold environments.

High Voltage and High Power Design

Maximum Power and Voltage

• PID Power: 20kW, sufficient to meet the heating needs of most cold areas, with PID regulation to save electricity.
• Maximum Rated Voltage: DC 1050V, EVLINK's high-voltage PTC heaters can be customized for special voltage conditions.

Innovations

PTC Modular Design

• Unique modular insulated ceramic heater design, ensuring stable and safe heating with high-voltage PTC heaters.
• Custom heating cores ensure good voltage resistance and low-temperature start-up performance, even at -40°C.

Matrix Arrangement Structure

• Special heater structure with internal relays, fuses, and independent IGBT cooling to improve heat dissipation efficiency, holding invention patents.
• High-quality alumina ceramic substrates are used as insulation materials, solving the problems of traditional polyimide films being prone to scratches and insulation issues. EVLINK's high-voltage coolant heaters maintain performance with a five-year warranty.

Copper Busbar Connection

• Modular copper busbar connections ensure a simple and safe internal structure, solving the issues of short circuits or leakage in traditional HVCH heaters.

High Voltage Coolant Heater

• Designed to handle high voltage systems in electric vehicles, ensuring rapid heating of coolant.
• High voltage coolant heaters are essential for maintaining optimal battery temperatures and ensuring the longevity of electric vehicle components. TMS is gradually shifting from air cooling to liquid cooling solutions.

Commercial Vehicle Heaters

• Specifically designed for commercial vehicles, providing reliable performance under various operating conditions.
• Advanced PTC technology ensures rapid heating and stable temperature control.

Safety Precautions

Surge Current Management

• Using PTC chips with good low-temperature start-up performance to smooth the current curve and reduce surge current.
• Staggered start-up reduces overall current.

High-Temperature Risk Control

• Combining mechanical temperature control switches with glass-sealed NTC thermistors to ensure safety under high temperatures.

Control Logic

Soft Start

• Grouped start-up with independent IGBT control and special step-by-step start-up logic for smooth start-up.

PID Regulation

• Collaborating with customers to debug PID regulation, optimizing energy-saving strategies based on temperature, keeping the battery healthy.

No-Load Switching

• Combining contactors with IGBTs to ensure minimal impact on contactors during switching, preventing adhesion.

Product Description

EVLINK's PTC coolant heaters are electric heating devices that use electricity as an energy source to heat the coolant and provide thermal energy for vehicles. They are widely used in electric and hybrid vehicles for heating passenger cabins, defrosting, and dehumidifying windows, or activating battery thermal management systems (TMS) to replace batteries, meeting relevant regulatory and functional requirements.

Specifications

Conclusion

EVLINK's automotive water heaters offer efficient and reliable heating solutions through innovative PTC modular design, robust safety precautions, and precise control logic. These innovations not only enhance product performance but also further solidify EVLINK's leading position in the automotive thermal management field. The integration of high voltage coolant heaters and commercial vehicle heaters ensures comprehensive thermal