Now when talking about new energy vehicles, we say how many kilometers of range, how fast the acceleration is, how big the screen is, and how smart the autonomous driving is.
These are indeed big changes that we can directly feel.
However, we may rarely think of one problem: these increasingly powerful batteries, motors and chips, like a group of athletes working hard, generate huge heat.
If they are not "cooled" properly, they may "slow stroke" and the car can't run.
Therefore, there is a very important system in Hyundai cars called the thermal management system. It is like the "central air conditioner" and "private doctor" of the vehicle, which is specifically responsible for cooling and dissipating these core components to ensure that they work in the best condition.
The core executors of this system are our invisible electronic water pumps, electronic oil pumps and cooling fans.
They are like fans and compressors that keep rotating in the "air conditioner", sending coolant to places where it needs to be cooled down.
To make these pumps and fans work accurately and vigorously, a stable and reliable "power supply station" is needed, and this small supply station is a capacitor.
Don’t underestimate this inconspicuous small part. Its workin
Now when talking about new energy vehicles, we say how many kilometers of range, how fast the acceleration is, how big the screen is, and how smart the autonomous driving is.
These are indeed big changes that we can directly feel.
However, we may rarely think of one problem: these increasingly powerful batteries, motors and chips, like a group of athletes working hard, generate huge heat.
If they are not "cooled" properly, they may "slow stroke" and the car can't run.
Therefore, there is a very important system in Hyundai cars called the thermal management system. It is like the "central air conditioner" and "private doctor" of the vehicle, which is specifically responsible for cooling and dissipating these core components to ensure that they work in the best condition.
The core executors of this system are our invisible electronic water pumps, electronic oil pumps and cooling fans.
They are like fans and compressors that keep rotating in the "air conditioner", sending coolant to places where it needs to be cooled down.
To make these pumps and fans work accurately and vigorously, a stable and reliable "power supply station" is needed, and this small supply station is a capacitor.
Don’t underestimate this inconspicuous small part. Its working environment in the car can be said to be "dirty".
In the engine compartment, the temperature in summer can easily exceed 100 degrees Celsius, like an oven; in winter, it may drop to minus 30 to 40 degrees Celsius, instantly turning into a large freezer.
At the same time, when the motor starts and stops, the current will instantly soar and fall back like a roller coaster.
Under such a double test of ice and fire and current impact, ordinary capacitors have long been "dead".
Therefore, whether to create a automotive-grade capacitor that can live well and do well in such extreme environments has always been a difficult problem to test a country's industrial manufacturing level.
In the past, we mostly relied on imports of such high-end components.
But the situation is different now. There is a company in China called "Yongming" that has come up with a new product called VHE series in response to this problem, which is a polymer hybrid aluminum electrolytic capacitor.
The name is complicated, but simply put, it is a "special force" tailor-made for the most laborious electronic pumps and electronic fans in the automotive thermal management system.
It is not simply a little better than previous products, but it fundamentally solves many headache-inducing problems. It can be said that it demonstrates the hard-core strength of China's manufacturing in this small component.
First of all, the first unique skill of this new capacitor is that its "internal power" is particularly profound and it performs very stably.
We use one word to measure the internal strength of a capacitor, called ESR, which is equivalent series resistance.
You can understand it as the "internal friction" encountered when the current passes through the capacitor.
The smaller the friction force, the less heat the capacitor generates, the less energy it wastes, and the efficiency of working will naturally be higher.
Many capacitors perform well at room temperature, but once they reach high or low temperature environments, this "friction" cannot be controlled, and the performance is greatly reduced.
The great thing about Yongming's VHE series is that whether it is in the severe cold of minus 55 degrees or in the heat of up to 135 degrees, its "internal friction" can always be maintained at a very low level, about 9 to 11 milliohms, and the fluctuations are very small.
This means that no matter how harsh the external environment is, it can work efficiently consistently without causing trouble or heating, providing an extremely stable foundation for the entire system.
Secondly, it also needs to be equipped with a "golden bell cover iron cloth shirt" that can withstand the huge impact of current.
When the motor is working, it will generate a lot of messy "current noise", which is professionally called "ripples current".
These noises are like waves on a calm lake, which can interfere with other sophisticated electronic devices on the car, such as navigation, audio, and even damage the motor itself.
The function of the capacitor here is to smooth out these "waves" and filter the chaotic current into smooth and clean DC power.
The ability of Yongming VHE series to handle this "current noise" is more than 1.8 times higher than the previous generation of products.
For example, if the capacitors in the past could cope with the current fluctuations of a small water pump, then the VHE series can easily handle the "storm waves" brought by a high-power motor.
It can steadily absorb these violent ripple currents, which not only protects the safety of actuators such as water pumps and fans, but also prevents voltage fluctuations from interfering with surrounding sensitive chips, and ensures harmonious coexistence of the entire vehicle's electrical system.
Let’s talk about its most hardcore ability: high temperature resistance.
As we mentioned earlier, the engine compartment is like a big oven.
The design standard of this VHE series is to live well in this oven.
Its rated operating temperature is as high as 135 degrees Celsius, and it can even withstand the instantaneous high temperature of 150 degrees.
This is not the most critical. The most critical thing is that it can work continuously and stably for 4,000 hours at extreme high temperatures such as 135 degrees.
What is this concept?
Let's do some calculations. If your car drives for an average of 2 hours a day, then this small capacitor can stay at the hottest place in the whole car for more than five years.
This extraordinary reliability allows car designers to make layouts more boldly, no longer have to worry about the heat dissipation of a capacitor, and also allows us ordinary car owners to no longer worry about the vehicle being overheated because a small part is overheated, greatly improving the durability of the vehicle.
Finally, a car is bound to go on bumpy roads and has to go through frequent starts and stops.
Therefore, the parts on the car must not only perform well, but also be "solid and durable".
The VHE series has particularly enhanced its impact resistance and overload resistance in design.
When a vehicle vibrates through the pothole road, or when an emergency brake or acceleration causes the current to instantly increase, it can withstand it steadily without "internal injury".
It is also very resistant to charge and discharge, and can easily adapt to the traffic conditions of stopping and stopping in the city.
Every startup and shutdown is a test for it, and it can withstand thousands of such cycles and still have a long lifespan.
So overall, the VHE series capacitor launched by Yongming is not just an upgrade of small parts.
It solves a big problem for automobile manufacturers through extremely low energy consumption, super current filtration capability, excellent high temperature resistance and extremely high reliability.
This means that our domestic cars can use core components with stronger performance, more reliable, and more cost-effectiveness in the key system of thermal management.
This not only improves the performance and durability of the entire vehicle, but also marks that China is moving from a chaser to a leader in the core automotive industry chain.
What we ordinary consumers end up getting is a car that is more reassuring in any weather or road conditions.
