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1. The requirements of the indoor temperature: when the projector heat sink heating in winter indoor temperature should be controlled at not less than 18 ℃, the average indoor temperature to achieve 16 ℃, but for the elderly and children, 16 ℃ standard is relatively low, but also shoulds not be too high, too high can let a person have the feeling of discomfort, and indoor and outdoor temperature difference is too large to cause colds and other diseases.
5. Decorate heat sink: decorate projector heat sink should consider to maintain, open hole area should with whole group heat sink can disassemble lift advisable.And adornment component should be mobile type, when heat sink appears problem, can lift conveniently, reveal whole conduit gas slice. The opening of the valve of the riser and branch pipe shall have space for disassembling and replacing the valve.
This is the most common way to dissipate heat. Aluminum fins are used as part of the led heat sink to increase the area of heat dissipation.
Heat-conducting plastic heat sink
Using LED insulation heat dissipation plastic instead of aluminum alloy to make heat dissipation body, can greatly improve the heat radiation ability.
Surface radiation heat dissipation treatment
The surface of the led heat sink do radiation heat treatment, simple is to apply radiation heat paint, can be taken away from the surface of the with radiation.
Air hydrodynamics.
The shape of the led light heat sink is used to create convection air, which is the lowest cost way to enhance heat dissipation.
Fan
Inside the led heat sink, long-life and high-efficiency fan is used to enhance heat dissipation.However, changing the fan is troublesome and not suitable for outdoor use, which is a rare design.
Heat pipe
Heat transfer tube technology is used to channel heat from LED chip to heat sink cooling fin. Large led lights, such as street led lights, are common designs.
Liquid ball bubble
The transparent liquid with high thermal conductivity was filled into the bulb of the led light body by using liquid bulb encapsulation technology. This is in addition to the reflective principle, the only use of LED chip surface heat conduction, heat dissipation technology.
Use of led light holder
In the home type of small power LED light, often use the internal space of the led light cap, the hot drive circuit part or all put in.This can be used as a screw cap such as a larger metal surface of the led light, because the cap is closed to the base of the metal electrode and power line. So some of the heat can be derived from that.
Integration of heat conduction and heat dissipation -- application of high heat conduction ceramics
The purpose of heat dissipation of led heat sink is to reduce the working temperature of LED chip. Due to the large gap between the expansion coefficient of LED chip and the thermal conductivity and heat dissipation coefficient of metal commonly used, the LED chip cannot be directly welded to avoid the damage of LED chip by high and low temperature thermal stress. The latest high thermal conductivity ceramic materials, thermal conductivity close to aluminum, expansion system can be adjusted to sync with the LED chip. In this way, heat conduction and heat dissipation can be integrated to reduce the intermediate link of heat conduction.
High performance Cold Plate has been developed by Friction Stir Welding Porcess; The Copper pipe was embedded in the machined groove of aluminum base plate by using Friction Stir Welding , thermal performance of the Cold Plate are approximately 30% higher than that of the conventional Cold Plate fixed by bolts. Strong bonding between copper and aluminum was established by optimizing the Friction Stir Welding conditions. Lori Quality Engineering was used to seek optimum robust conditions of Friction Stir Welding. Eight control factors were selected from Friction Stir Welding conditions and dimensions of the parts, and noise factors were determined by the gap between the copper pipe and groove of the aluminum base plate. SN ratios of eighteen welded specimens were calculated by thermal performances of specimens. The factorial effects graph was considered from the data of the SN ratios of 18 combinations, the optimum condition was determined by choosing the control factors that had the highest SN ratio. Stable and higher thermal performance was obtained because the Cold Plate was produced under optimum robust condition, even if there were large gaps between copper pipe and aluminum groove before Friction Stir Welding. The Quality Engineering is very effective to seek robust production conditions, many variety of high performance Liquid Cold Plates have been manufactured in short preparation period based on this technique in our company.
Some time ago, many countries have issued a ban on fuel cars timetable, for new energy vehicles is undoubtedly a great benefit, but also to the development of new energy vehicles into a strong power, so the development of new energy vehicles in the future is what? the following cold plate heat sink experts for everyone analysis.
For the development of new energy vehicles, the Chinese government is undoubtedly the most powerful in promoting the development of energy saving and new energy vehicles (2012-2020), which points out that the production capacity of pure electric vehicles and plug-in hybrid electric vehicles in China will reach 2 million by 2020, and the cumulative production and sales volume will exceed 5 million. According to the statistics of water-cooling radiator experts, by the end of 2017, China's new energy vehicle ownership reached 1.53 million, according to the planned development space, the future growth rate will be greater.
In the future, policies on new energy vehicles will be more reasonable. The plan of withdrawing fiscal subsidies for electric vehicles in 2020 has been determined, and the dual-point policy for new energy vehicles will be formally implemented soon. Measures will continue to be taken to expand the sales quota of new-energy vehicles, explore new markets for Shared cars, and improve the construction of charging facilities. In addition to subsidy policies, technical standards on the comprehensive capacity and emission of new energy vehicles will also be improved. Water cooled plate experts also pointed out that the policy innovation for new energy vehicles will be further promoted. In the future, policies will be guided from the perspectives of carbon trading system, electricity price reform, business model innovation, automatic driving planning layout, and diversified power sources.
New energy vehicle technology innovation will become the focus. New energy vehicles pure electric and intelligent is the future of the most important direction of development, in addition to the water cooling radiator experts think the industry will further increase the research and development of fuel cell engine, fuel powered cars will become in addition to power battery cars a bright spot. The future of new energy vehicles will also be combined with the implementation of major artificial intelligence projects, the development of intelligent networking, automatic driving technology platform. New energy vehicles will also evolve into mobile personal application space and interactive terminals. It can be seen that intellectualization will be an important feature of new energy vehicles in the future.
The market for new energy vehicles is very broad.The innovative development of emerging business models such as Shared cars and self-driving rentals will greatly promote the popularization of new energy vehicles. New energy vehicle enterprises will also gradually transform from a single provision of automobile products to a combination of products, services, charging, operation and other links and a new business model. New energy vehicle will develop into a systematic thing.
The development of new energy vehicle related facilities will be more complete. Charging ways, charging interface will form a unified standard further, new energy vehicle in electricity infrastructure system in field of private and public charging charging pile pile will maintain steady growth, the unit interior than charging infrastructure construction to speed up the pace, regional car pile will be further optimized, charging service platform that integrates development, accelerates the development of intelligent at the same time, can be activated at the same time the application of new energy, new energy and form a good interaction.
Power battery is used in new energy vehicles to provide power for the battery, power battery for the general battery for higher technical requirements, higher requirements on the sustainability of the battery, the current domestic power battery manufacturers everywhere, appeared on the surface of comprehensive development, a good scene.Power battery pack liquid cooling heatsink experts believe that the power battery pack industry will be from everywhere to the polarization of the situation into a period of time, power battery enterprise polarization is significant, bibcock with bibcock pattern is basically determined.
Throughout the development of power batteries in China, the battery capacity is expanding rapidly, which leads to the continuous oversupply of lithium batteries in China.From the perspective of quality, there is a lot of low-quality production capacity, but there is still a lack of high-quality production capacity. The concentration degree of power battery industry will be further improved, and it will focus on high-quality and high-level enterprises. The supporting manufacturers of popular models are mainly CATL, byd, guoxuan, lishen, fu neng and other leading enterprises of first and second-line power battery.
Looking into the future, the market will maintain structural excess for a long time, leading enterprises scale effect and technological breakthroughs will achieve a steady decline in costs, profit margins will have a good performance, and medium and low-end battery companies are facing greater shuffling pressure. How to survive in the competition has become a power battery enterprises must think about the problem.
The process technology is very important for the power battery, the power battery preparation link will develop to scale, intelligence, improve product consistency and yield, which is a key to improve the quality. Whether the mass production of power batteries and the transformation and upgrading of intelligent manufacturing can be seen as a window of quality breakthrough.
Power battery enterprises with better technology and technology will be targeted by important international and domestic car enterprises, especially leading enterprises, have basically met the conditions for mass production. Large-scale intelligent production equipment can through digital means, the introduction of big data analysis and the principle and method of artificial intelligence, improving the quality of products at the same time realize the capacity of statistics and product basic diagnostic and traceability, finally realizes the comprehensive monitoring of battery production process, effectively solve the consistency problem of poor and low yield of battery. Power battery package liquid cooling heatsink experts think that this needs to spend a lot of money on technical equipment update and continuous improvement on the process, which is also very test power battery enterprise strength.
Globally, power battery production is mainly concentrated in China, Japan and South Korea, with Japan and South Korea leading the technology for the time being. Chinese enterprises are expected to catch up in the future.Industry giants mainly include South Korea's samsung, LG chemical, Japan's panasonic, ASEC, SONY and China's byd, CATL and so on.From 2016 to 2017, domestic battery manufacturers are in the trend of expanding production across the board. By 2020, the effective production capacity in China will be dominated by three yuan, and the top five power battery companies will occupy more than 80% of the market share.
Although Japan and South Korea power battery enterprises in the technology ahead of China, but Chinese enterprises catch up with the rapid technology and cost advantage highlighted, the current four raw materials have been all independent, the highest barrier of the positive pole, diaphragm has begun to export, lithium key equipment independent, leading intelligent has begun to export. CATL has entered the supply chain of first-class car companies such as BMW. It is foreseeable that there will be 2-3 world-leading power battery brands in China, which will seize the global market share. Experts of power battery package liquid cooling heatsink believe that, especially in the field of high-end power battery, the cost advantage of Chinese enterprises will be further highlighted.