After Trump's election, Tesla's fog looks at the sales of new energy vehicles in the US in November.

The US sales of new energy vehicles in November have already been released. It seems to be earlier than in the past. Is it true that the American people are also looking forward to the performance of the US new energy vehicle market after the election? The election was very dramatic. I even suspected that the ballot system was manipulated by hackers and had to recount the votes. However, there was foreign media analysis. Even if the votes were recounted, Hillary’s chances of a turnaround were very slim.

The first ten models of the US new energy vehicle sales were found to be the original formula, familiar taste. A simple form was produced for your reference based on the November sales ranking.

Sales analysis: general growth in November

Compared with October and September, Tesla's sales of the Model S and Model X models have dropped significantly due to several automatic driving accidents. Except for Tesla, the sales volume of other models is relatively stable. Although there are increases and decreases, the magnitude is not very large.

In November and October, in addition to the significant decline in sales of Volkswagen e-Golf, the rest of the models have increased in varying degrees. Tesla Model S has the most obvious increase, reaching 61.85%, but sales are still less than September; followed by BMW i3, an increase of 42.31%. Electric Jun is expected to attract a large number of distributions at the sales terminal after the upgrade of battery capacity. Consumers; the third is Ford Fusion Energi, an increase of 32.43%.

Highlights:

Sales first: Chevrolet Volt

The Chevrolet Voltwa Volt uses an extended-program plug-in hybrid system that uses a dual-motor with improved performance compared to the previous generation. It takes 8.4 seconds to accelerate from standstill to 60 mph (about 97km/h) and has a battery capacity of 18.4. kWh, with a 1.5L engine, because it is an incremental program, Volda's Volt's gasoline engine will still not intervene to drive the vehicle, the function is only to charge the battery when the battery pack is low.

The biggest increase: Tesla Model S

Tesla Model S should be familiar to everyone. The leader of luxury electric vehicles has 6 different powers, different battery life, and different types of driving models. After the auto-driving accident, the sales volume has rebounded sharply. The "veteran" is still old and strong, and it is not impossible to regain the first monthly sales.

Domestic new army: Ford Fusion Energi

The domestic version of Ford Fusion Energi is a hybrid version of Changan Ford Mondeo, which is now domestically produced and just listed at the Guangzhou Auto Show in November. The plug-in hybrid system of the car consists of a 2.0L naturally aspirated engine and electric motor. The maximum power of the system is 145kW, the integrated fuel consumption is 4.2L per 100km, and the lithium-ion battery pack capacity is 1.4kWh, which matches the E-CVT gearbox. In pure electric mode, the new car has a maximum cruising range of 35km and a top speed of 137km/h. Given its sales performance in the US market, its comprehensive performance is worthy of recognition.

Review

In this US election, Trump once expressed opposition to Hillary's promotion of renewable energy. He believes that the current green energy is backward and unreasonable, which is undoubtedly a good start for the new energy industry.

Currently purchasing electric vehicles in the United States can enjoy a tax credit of $7,500. After Trump takes office, he may formulate policies that are conducive to the development of traditional energy sources such as oil and coal. However, the preferential policies for cold energy and electric vehicles may disappear.

US dealers and consumers are rushing to sell and buy new energy vehicles for the last time. This is the reason for the general increase in sales in November. The impact of Trump’s coming to power on new energy vehicles is beginning to take shape. As for the future of new energy vehicles, especially how Tesla will develop in the United States, it will only be announced when Trump introduces a formal policy.

Buried/blind Via Hole PCB

What are the holes in a PCB called?

Generally, there are three types of PCB vias that we often see:
Through Hole: Plating Through Hole abbreviated as PTH, this is the most common one, you only need to pick up the PCB and face the light, the hole that can see the bright light is the "through hole". This is also the simplest type of hole, because when making it, you only need to use a drill or a laser to directly drill the circuit board, and the cost is relatively cheap. But on the other hand, some circuit layers do not need to connect these through holes. For example, we have a six-story house. I bought its third and fourth floors. I want to design a staircase inside that only connects the third floor to the third floor. It's fine between the fourth floor. For me, the space on the fourth floor is invisibly used up by the original staircase connecting the first floor to the sixth floor. So although through holes are cheap, they sometimes use up more PCB space.

Blind Via Hole, which connects the outermost circuit of the PCB with the adjacent inner layer with electroplated holes. Because the opposite side cannot be seen, it is called "blind via". In order to increase the space utilization of the PCB circuit layer, a "blind via" process has emerged. This production method requires special attention to the depth of the drilling (Z axis) to be just right. This method often causes difficulties in electroplating in the hole, so it is almost used by no manufacturer; it is also possible to place the circuit layers that need to be connected in the individual circuit layers in advance. At that time, the holes should be drilled first, and then glued together, but a more precise positioning and alignment device is required. This is Blind Via Hole PCB.

Buried hole: Buried hole, the connection of any circuit layer inside the PCB but not conducting to the outer layer. This process cannot be achieved by drilling after bonding. It must be drilled on the individual circuit layers. After the inner layer is partially bonded, it must be electroplated before it can be fully bonded. Compared with the original "through hole" and "Blind holes" take more time, so the price is the most expensive. This process is usually only used for high-density (HDI PCB) circuit boards to increase the usable space of other circuit layers. This is Buried hole PCB.

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