Automobile Charging Station Assembly Inductor

Core working principle and functions

Haoer's China Automobile charging station assembly inductor plays a dual core role of voltage boosting and resonant conversion in the automotive charging station system, supporting the efficient conversion of fast charging power:

The BOOST boost inductor is connected in series with the DC-DC boost circuit of the charging station. When the switching tube is conducting, it stores electrical energy; when it is turned off, it releases the energy, converting the low-voltage direct current (such as 300V DC) rectified from the grid into high-voltage direct current (such as 750V-1000V DC) suitable for charging electric vehicles, meeting the fast charging voltage requirements; The high saturation core design can cope with the instantaneous large current impact during the boost process, avoiding the decline in boost efficiency caused by the attenuation of the inductor value.

The LLC resonant inductor function, together with the resonant capacitor and the switching transistor, constitutes the LLC resonant conversion circuit. Through precise matching of the resonant frequency, zero-voltage switching (ZVS) and zero-current switching (ZCS) are achieved, significantly reducing switching losses and enhancing the overall conversion efficiency of the charging station (≥96%). At the same time, it suppresses high-frequency harmonic interference during the resonant process, ensuring the stability of the output current and avoiding impact on the vehicle battery.

The directional heat dissipation function of the radiator quickly discharges the iron loss heat of the core and the copper loss heat of the windings, solving the overheating problem of components under high-power fast charging conditions, ensuring that the inductor maintains stable performance within a wide temperature range of -40℃ to +125℃, and prolonging the service life of the component.

Characteristics

High saturation current-carrying capacity

The saturation flux density of the amorphous alloy magnetic core exceeds 1.5T, capable of withstanding the peak current during fast charging (2-3 times the rated current) and having an inductance value attenuation of ≤10%. It is suitable for the fast charging requirements of dynamic voltage and current adjustment of charging piles.

High frequency with low loss, enhancing fast charging efficiency

The working frequency ranges of Automobile Charging Station Assembly Inductor from 50kHz to 200kHz (the mainstream resonant frequency range for fast charging chargers), with the total loss of the magnetic core and the winding loss being ≤ 0.8%. This significantly reduces system energy consumption and minimizes heat generation during the operation of the fast charging charger.

The radiator efficiently dissipates heat, ensuring continuous operation of high-power devices.

The combined design of fin-type aluminum radiator and conductive silicone gel increases the heat dissipation efficiency by 60% compared to the no-radiator solution. This enables the assembly to maintain a temperature rise of less than 35°C under a 200kW high-power fast charging condition, preventing the need for the power charger to reduce power due to overheating.

Integrated integration, reducing the size of the charging station

Integrating the functions of BOOST and LLC dual inductors, compared to the independent component solution, it reduces the installation space by 40%, adapting to the design trend of miniaturization and high power density of charging stations, while simplifying the internal wiring and reducing the failure rate.

Vehicle-grade reliability, suitable for harsh environments

Automobile Charging Station Assembly Inductor meets AEC-Q200 vehicle-grade certification, with vibration resistance up to 10G, operating temperature range of -40℃ to +125℃, capable of withstanding extreme conditions such as high-temperature exposure, low-temperature coldness, and humid salt fog in outdoor charging station installations.

The radiator-equipped BOOST+LLC combination component, with its core advantages of high power, low loss and strong heat dissipation, has become a key magnetic component for the efficient, stable and safe operation of automotive fast-charging chargers. It provides core technical support for the large-scale application of charging infrastructure for new energy vehicles.

Company strength

Guangdong Haier Electronics Co., Ltd. has multiple production bases in places such as Foshan, Guangdong Province and Tingxian, Guangxi Province. The total factory area exceeds 10, 000 square meters, and the number of employees has exceeded 1, 000. The company has a strong production capacity of over 100 million transformers, filters, and inductors per year. The company has experienced employees and a professional and efficient management team, ensuring that every link from research and development to production meets high standards. Haier Electronics always adheres to the principles of "technological innovation, quality priority, service first, and win-win cooperation", continuously deepening its focus on the magnetic component field, striving to grow and become a benchmark enterprise in the industry.

The "inductor coil" is applied in the following industries: new energy and energy storage, automotive electronics and electrification, industrial automation and power supply, information and communication technology, consumer electronics and household appliances; its application locations include: the energy storage and output filtering positions of DC-DC circuits, the common-mode/differential-mode choke coil positions at the power input end, the transmitting and receiving coils of wireless charging devices, and the matching network and bias circuit of RF power amplifiers; its application under working conditions includes: high current, strong magnetic field, and high temperature.

Certificate

Cooperative Brands

Little Bear, Delmar, Meishel, Dongling Weiyou, Yaxuel, Lianrui, Jiewei, Yingke, Yu Long, Tuohao