When you play 4WD with your little friends as a child, you will find that as long as you have four rechargeable batteries, you can play with your friends without stopping! So, can an electric car also have a spare battery and then continue to drive by replacing the battery?
Then the problem of the brain hole system came: Why can't the electric car replace the battery like the Audi double-drilling four-wheel drive, thus solving the problem of slow charging and endurance?
After you see this problem, you may have the following questions:
How to replace the battery?
How to unify the batteries of different sizes and powers?
How much is the cost of a single change?
What about parking? (This question comes with a sense of joy, some electric car owners are charging for free parking)
In fact, the idea that electric vehicles will continue to drive for a block of battery is not a thing of the past, and it has already been realized. For example, long-distance buses that can be exchanged for the 2008 Beijing Olympic Games, and, for example, Tesla’s US-only power station that is open for reservations, are all electric vehicles. A practical example of a power change mode.
So what is the possibility of changing the electric car in the future? To this end, the author has specially connected the engineers of Xiaopeng Automobile (the name is inconvenient and the number is large, this article is collectively referred to as "automobile engineer") and the Tesla owners to see how they view the power exchange mode.
What is the value of the power exchange mode?Since electric vehicles need to face many problems when replacing batteries anytime and anywhere, why is there a capital for discussion about the power exchange mode?
There are two reasons for the existence of the power exchange mode:
First, it is fast! It takes only 90 seconds to replace the battery with the arm of the Tesla substation, which is equivalent to the speed of refueling;
Second, the power-exchange mode may be able to solve the practical problems of battery life of the electric vehicle and pollution-free recycling of the battery. Although this model may not seem feasible, it is really imaginative!
There is no oil, find a gas station and wait for a while to get back on the road. This is a pleasure that everyone can easily obtain but is easy to ignore. This is a luxury for electric car users. Maybe you can charge for half an hour with an electric car. You can run more than 100 kilometers of data to comfort yourself, but you have to admit the fact that the car can't move in this half hour.
In addition, the life expectancy of electric vehicle batteries is about 5 years, and it is bound to face the problem of recycling in the future. The power-changing mode just forms a unified management mechanism for the battery. Professionals uniformly maintain, charge, and replace the battery, reducing the risk of fire caused by user charging.
Automotive Engineer: "Replacing the battery is also a direction for the development of electric vehicles. Battery standardization requires industry-wide integration. If the sales of a single model is large enough, it is not impossible to promote battery replacement."
Battery standardizationMy Audi double-drill four-wheel drive can only be equipped with a fifth battery, and can not be equipped with a large battery or a small battery.
Battery standardization is the first challenge that is required to change modes. Why can fueling be standardized? Because it only needs to distinguish between oil categories such as No. 93, No. 95, and diesel, there is no need to force the tank size of different brands of cars.
The difficulty of unifying the battery is much greater than the standardization of the fuel tank. In addition to the standardization of the battery, the output power and output voltage of the battery need to be within the defined quantitative standard. The size, shape and contact point of the battery must also be consistent.
How difficult is battery standardization? It is only the appearance of the battery, it is estimated that it involves the complicated system re-adjustment in the car, and also needs to consider the rebalancing distribution of the car's center of gravity. At the same time, battery standardization also involves the ultimate problem of "who made the rules of the game". Is it the government?
With so many countries in the world promoting the popularity of electric vehicles, who should listen to it and listen to market share? Is Tesla? Will other electric vehicle manufacturers really be willing to follow? The problem of the standard of the battery standard is unrealistic at present.
Then a single car company can unify the battery size, capacity, installation location and other standards, so that the electric car produced by itself can easily replace the original original battery, which is all right?
This is also the ultimate goal of not meeting the profits of enterprises. Even if Tesla, which is mixed with electric cars, has a total global sales volume of more than 50,000 in 2015, it is necessary to establish enough replacement stations on the world to be conspicuous. Enterprise benefits, it is better to build more super charging stations to be more practical.
Auto engineers: "Even if two different brands of electric vehicles use the same standard battery, it is not suitable to replace them. Standardization of batteries. Standardization is no more practical than solving the problem of convenient and fast charging, just as mobile phones cannot solve battery standardization. The problem"
How to replace the battery?Rotate the rear twist button of the Audi double-drill four-wheel drive, pick up the car shell, release the battery clip, and replace the battery.
Taking Tesla as an example, the battery pack consisting of more than 6,000 18650 lithium cobalt oxide batteries weighs nearly 900 kilograms. Tesla has madly proved to the world that manpower can also replace batteries. It takes five people to work together and takes ten hours. Minutes to complete the replacement.
There is no doubt that electric cars are not as easy to replace batteries as electric bicycles or electric cars, but rely on smart robotic arms to replace batteries.
Tesla Power Station
Tesla's power station is the best place to change power. The whole process is operated by the machine. The owner does not need to get off the bus and complete the battery replacement within 90 seconds.
Auto engineer: "(Advertising time) may not need to change batteries at all in the future, we have prepared a small electric car that is waiting for you (Jokes)."
Tesla owner: "I don't care if the rented electric car can replace the battery, but a TESLA worth more than 1 million, you can change the battery for free, I don't worry!"
Where should the replacement battery be placed?The battery of an electric car can be said to be a very critical component, taking into account the risk value of the actual driving collision, and the balance of the center of gravity of the vehicle.
Where is the battery placed for easy replacement? Starting from the simplest thinking, of course, the closer to the edge of the car, the intuition comes from the fact that the refueling hole is generally on the side of the car, so whether the front or the rear trunk can be optimally replaced in terms of convenience. What about the battery compartment?
Obviously, the position design of the battery is not so simple. From the construction of Tesla, we know that the battery must be placed in a relatively safe and stable position, so Tesla integrates more than 6,000 18650 small batteries into the brick and rigid frame. The two-in-one is made into a ground. This ingenious design not only reduces the risk of collision of the Tesla battery, but also reduces the center of gravity of the vehicle.
Tesla Power Station
In a small number of documents, we learned that the Tesla power station has a trench structure similar to the repair shop, and the bottom arm is extended into the Tesla chassis to replace the battery.
Automotive Engineer: "It is not recommended to change the battery installation location at will, because the peripheral structure of the battery is carefully designed. The battery pack installed in the electric car is a complicated system. It is difficult to replace it than to solve the fast charge and capacity."
How expensive is it to replace the battery?The mode of changing the electricity will increase the cost of the car for the car companies or the owners. For the car companies, whether it is self-construction or government support, the power station is an extra cost. Tesla is The construction cost of a power station in California is as high as 500,000 US dollars. In addition, the cost of manual maintenance and land rent is a huge amount.
In addition, the industry also proposed a set of data, if you want to implement the power exchange mode, companies need to produce 1.4 times the number of vehicles, as a backup battery for the power station.
For the owner, the cost of changing the battery is also very expensive. The cost of replacing the battery for Tesla users is 60 to 80 dollars.
Automotive Engineer: "The power-changing mode belongs to the heavy capital industry, and people need to pay for the convenience of changing the electricity."
Xiao Bian Comments: Obviously, the current power-switching mode is generally not optimistic, but if you look at it from the perspective of cost, the power-changing mode can solve the two major ills of charging difficulty and battery scrapping. Now the power-changing mode looks like a joke, and maybe it will take some time to make breakthroughs in this area, which will indicate the time when pure electric vehicles will be popularized.
LED Panel lights driver
LED Panel lights, as one energy saving lights in the Daily life, has became more and more popular in the world. We've designed led driver for this type led lights: 12W,18W,21W,24W,36W,48W,72W,85W,95W ect.According to different application, different country's household voltage, and different environment using, we designed suitable dirvers for these different situation.
Our led panel lights driver was made out of different case: aluminum, Iron, plastic ect. With input&output terminals, easy to install, especially for Class P certifed series, esay to combine with your already certified lamps, and then saving a lot cost!
Parameter:
Input voltage: 100-277vac / 100-240vac / 100-130vac / 180-240vac / 100-347V
output voltage: 25-40vdc / 27-42vdc / 35-45vdc / 50-70vdc / 12Vdc / 24vdc
current: 100mA-8000mA.
Power factor: >0.9
Dimming:0-10V / PWM / RX / DALI / Traic.
>=50000hours, 3-5 years warranty.
certificate: UL CE FCC TUV SAA ect.
FAQ:
Question 1:Are you a factory or a trading company?
Answer: We are a factory.Question 2: Payment term?
Answer: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment
can be negotiated.
Question 3: What's the main business of Fahold?
Answer: Fahold focused on LED controllers and dimmers from 2010. We have 28 engineers who dedicated themselves to researching and developing LED controlling and dimming system.
Question 4: What Fahold will do if we have problems after receiving your products?
Answer: Our products have been strictly inspected before shipping. Once you receive the products you are not satisfied, please feel free to contact us in time, we will do our best to solve any of your problems with our good after-sale service.
Driver For Led Lights,Round Panel Lights Driver,Led Transformer
ShenZhen Fahold Electronic Limited , https://www.fahold.com