[PConline Information] CES is the most representative exhibition in the science and technology industry. It has a strong standard of strong landing in Shanghai, China. CES Asia will be held in Shanghai New International Expo Center from May 25th to 27th to attract people from More than 200 exhibitors from 15 countries gathered for a technology feast. Audi had brought in their latest automotive black technology products before the start of the exhibition. The Audi Asia Consumer Electronics Show keynote was held in Shanghai. During the keynote speech, Audi launched the Audi R8 e-tron piloted driving. Concept cars.
Audi R8 e-tron piloted driving A debut of the world's first auto-driving car. The R8 e-tron second-generation electric sports car was first introduced at this year's Geneva Motor Show. This time, the R8 e-tron piloted driving is considered to be the R8 e-tron. The vest version of the generation has basically the same appearance and the same parameters. The battery capacity is also 92 kWh, and the cruising range has reached 450km. Both motors on the rear axle of the new car can deliver 170 kW of power and 460 Nm of torque, accelerate 0-100 km into 3.9 seconds, and have a maximum speed of 250 km per hour. As an electric vehicle, the R8 e-tron piloted driving is equipped with a CCS hybrid charging system. DC and AC power can be charged, and the battery can be fully charged in 2 hours. The battery provider is Sanyo, which has a total of 530 units of battery packs.
In addition to the most important R8 e-tron piloted driving, it is more realistic that the Audi Q7 e-tron, which is closer to consumers, is also released in the same period, but this is not a pure electric car but a hybrid car. The Audi Q7 e-tron is powered by a 2.0 TFSI engine and electric motor. It has a maximum power of 185 kW and a maximum torque of 370 Nm. The supporting motor has a rated power of 94 kW, a rated torque of 350 Nm and a battery capacity of 17.3 kWh. Due to different positioning, the parameters are still weaker than the R8 e-tron. The entire hybrid system can provide a combined output power of 270 kilowatts, acceleration of 5.9 seconds per 100 kilometers, and a top speed of 220 kilometers per hour. The battery life in pure electricity mode is only 53 kilometers. However, due to the hybrid system, the fuel economy performance is good. It only consumes 2.5 liters per 100 kilometers.
In addition to these two heavy trucks, Audi also cooperated with domestic Baidu and Huawei Technologies to install the Baidu Carlife vehicle system for Audi and jointly developed the LTE high-speed vehicle network with Huawei, which is regarded as the vehicle for Audi in China. Change.
This time PConline will present the most exciting report feast in these 3 days. Showcasing users of the booth, direct hits, hot manufacturers, industry trends, and on-site trials, the event witnessed Asia's CES event. For more information, please pay attention to PConline CES Asia.
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What is an aluminum PCB?
Aluminum-based circuit board is a circuit board called PCB circuit board production.
PCB aluminum substrate is a unique metal-based copper clad laminate. Aluminum Base Board has good thermal conductivity, electrical insulation performance and mechanical processing performance.
â—Aluminum base board surface mount technology (SMT); Aluminum base board has good heat dissipation performance in the circuit design scheme;
â—Aluminum base board can lower the temperature, improve the power density and reliability of the product, and prolong the service life of the product;
â—Aluminum base board can reduce the volume and reduce the cost of hardware and assembly;
â—Aluminum base board can replace ceramic substrate printed board for better mechanical endurance.
PCB aluminum-based copper clad laminate is a metal circuit board material, which is composed of copper foil, a thermally conductive insulating layer and a metal substrate. Its structure is divided into three layers:
Circuit layer: equivalent to the copper clad laminate of ordinary PCB, the thickness of the circuit copper foil is 1oz to 10oz.
Insulation layer: The insulation layer is a layer of low thermal resistance thermally conductive insulating material. Thickness: 0.003" to 0.006" inches is the core technology of aluminum-based copper clad laminates, which has obtained UL certification.
Base layer: It is a metal substrate, generally aluminum or optional copper. Aluminum-based copper clad laminate and traditional epoxy glass cloth laminate, etc.
The PCB aluminum substrate is composed of a circuit layer, a thermally conductive insulating layer and a metal base layer; the circuit layer (ie, copper foil) is usually etched to form a printed circuit to connect the various components of the assembly. In general, the circuit layer requires a large current-carrying Therefore, thicker copper foil should be used, the thickness is generally 35μm~280μm;
The thermal insulation layer is the core technology of the PCB aluminum substrate. It is generally composed of a special polymer filled with special ceramics. It has low thermal resistance, excellent viscoelasticity, thermal aging resistance, and can withstand mechanical and thermal stress. IMS-H01, IMS-H02 and LED-0601 and other high-performance PCB aluminum substrates thermally conductive insulation layer is the use of this technology, so that it has extremely good thermal conductivity and high-strength electrical insulation performance;
The metal base layer is the supporting member of the aluminum substrate and requires high thermal conductivity. Generally, it is aluminum plate, but copper plate can also be used (copper plate can provide better thermal conductivity), which is suitable for conventional machining such as drilling, punching and cutting. Compared with other materials, PCB materials have incomparable advantages. Suitable for Surface-Mount (SMT) &BGA Assembly of power components. No radiator is needed, the volume is greatly reduced, the heat dissipation effect is excellent, and the insulation performance and mechanical performance are good.
1. Audio equipment: input and output amplifiers, balanced amplifiers, audio amplifiers, preamplifiers, power amplifiers, etc.
2. Power equipment: 4 Layer Power Line Circuits switching regulator, DC/AC converter, SW regulator, etc.
3. Communication electronic equipment: high-frequency amplifier `filtering electrical appliance` transmission circuit.
4. Office automation equipment: motor drives, etc.
5. Automobile: electronic regulator `igniter` power controller, etc.
6. Computer: CPU board, floppy disk drive, power supply device, etc.
7. Power module: converter `solid relay` rectifier bridge, etc.
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