Is it more expensive to change TV screens than to buy a new TV? Insiders: overhaul of digital products is not recommended.

  Recently, a video about the price of changing TV screens exceeded that of buying a new TV, which attracted attention. Many consumers are puzzled that the cost of changing TV screens has reached 70% to 80% or even exceeded the price of the whole TV. In this regard, some people in color TV companies said that it is normal to change the screen more expensive than buying a new TV. Especially for low-end TVs with lower prices, the screen cost accounts for a higher proportion of the whole machine price. If you add increasing labor costs, the screen change price will exceed the price of new machines.

  Professionals also remind consumers that from a technical point of view, it is not recommended to replace the core components of digital products separately, and it is not recommended to change the screen of TV sets that have been used for a long time.

  Why does it cost 4600 yuan to change the screen of a TV bought for 2700 yuan?

  Recently, a video of "2,700 yuan to buy a TV replacement screen actually needs 4,600 yuan" has attracted attention. The author said in the video that he spent 2700 yuan to buy a 75-inch TV set, but the accidentally broken screen needs to be replaced. After contacting the official customer service of the manufacturer, the price of changing the screen was as high as 4600 yuan. Consumers are dissatisfied with this. "Why is the price of changing a screen so much more expensive than buying a new machine?" The consumer said that he understood the fact that the TV screen can account for 70% to 80% of the cost of the whole TV set, and he could accept it if he spent more than 2,000 yuan on maintenance, but why did he quote as much as 4,000 yuan?

  In this regard, the Beijing Youth Daily reporter got in touch with the relevant personnel of a color TV manufacturer. The other party said that it is true that the TV screen can account for 70% to 80% of the cost of the whole TV set, but consumers ignored the labor cost of changing the TV screen. In the era of intelligent production, it is not surprising that the labor cost of the same process is much higher than that of automatic production. According to industry practice, the labor cost of changing the screen of 75-inch TV will not be less than 2000 yuan.

  TV LCD screen accounts for 70% to 80% of the total cost.

  It is understood that TV screen is the biggest cost in TV production. Since the popularization of LCD TV, the cost of LCD screen can account for 60% to 70% of the total cost of the whole machine. If the module cost closely related to the screen is added, the proportion will even exceed 80%. In recent years, with the development of technology, although the proportion of screens has declined, it is still an absolute big head.

  With the continuous promotion of panel localization, the cost of LCD screen has dropped rapidly, and the market price of LCD TV has also dropped sharply. This is why the 75-inch LCD TV only sells for more than 2,000 yuan, which is only equivalent to the price of a low-end mobile phone. However, this has also caused new problems, that is, the ratio of labor cost to TV price in TV after-sales maintenance is getting higher and higher, so consumers often complain that TV maintenance price is even higher than buying a new machine.

  The reporter of Beiqing Daily inquired from the Internet that in recent years, consumers have repeatedly vomited or complained about this matter online. In May last year, Shaoxing consumer Ren Shifu spent 3,450 yuan to buy an LCD TV. Because the inner screen was broken, it needed to be changed. As a result, he was told that it would cost 3,400 yuan to change the screen. In December, 2021, Ms. Wang, a consumer in Chengdu, reported to the media that the Xiaomi TV she bought just had a three-year warranty, and there was a screen splash phenomenon. In the after-sales process, Ms. Wang was told by Xiaomi TV maintenance personnel that "only the screen can be changed", and the overall cost was over 3,000 yuan, accounting for about 80% of the original price of the TV. "It’s too exaggerated, which is to let consumers give up maintenance."

  Digital products often have the problem that the maintenance price exceeds the new machine.

  In fact, it is not a TV "patent" that the maintenance price exceeds the new machine. In the interview, the reporter of Beiqing Daily learned that there are many similar problems in digital products with high degree of automatic production, especially the replacement of core components with high cost, and the total price often reaches or even exceeds the price of buying new machines. For example, the price of replacing the motherboard with notebooks, mobile phones and digital cameras will be significantly higher than the price of new machines.

  China electronic chamber of commerce Consumer Electronics Survey Office has paid attention to such issues as "the price of replacing lenses is almost 1,000 yuan" and "the price of screen maintenance exceeds that of new machines". However, in the survey, it was found that most of the digital products repaired by consumers were old products that had been used for several years, and the components of the old models were in short supply, and the production cost at that time was more expensive. If consumers compared with the same products with better performance now, the "cost performance" would definitely be uneconomical. Consumer Miss Zhang bought a 3,000-yuan digital camera in early 2018. After four years of use, there was an unusable fault, which was displayed as a motherboard fault according to the error code. When she found the seller who bought the camera at that time, she got the answer that she could only repair it at her own expense after the shelf life, and the total price exceeded 2,000 yuan. "Now the digital camera of the same grade only costs 2000 yuan, but I am used to this machine and I really can’t bear it." Miss Zhang is in a dilemma.

  Digital products that have been used for a long time are not recommended for maintenance, and it is more appropriate to directly replace them with new ones.

  Some digital manufacturers told the reporter of Beiqing Daily that for such digital products that have been used for a long time, it is actually not recommended for consumers to choose maintenance, and it is more appropriate to directly replace them with new ones. "This is not only a cost consideration, but also a technical suggestion. The first is the matching degree between various components. According to this person, in the product design, manufacturers will take the service life of each component into account as a whole, and the service life is matched with each other as a whole, thus avoiding the cost waste caused by the fact that some components have reached the service life and other components can operate normally for a long time. Take an ordinary digital camera as an example. If we don’t consider the outdated performance indicators, it is recommended to use a machine for about six years. If the motherboard fails after four years of use, we may encounter problems with other components two years later. "At that time, if you give up maintenance and replace it directly, it is equivalent to the fact that this new motherboard was laid off in only two years, which actually caused more waste." Of course, he also said that if it is only a minor fault of non-core components, it is worthwhile to spend a lower cost on maintenance.

  On the other hand, the precision integration of digital products is high, and the precision and standardization of manual maintenance and installation are definitely not as good as integrated manufacturing. Theoretically, there are also cases where the service life and performance of the same parts after manual installation are not as good as the original ones. Therefore, consumers are advised to be cautious about the overhaul of the core components of digital products.

  Text/Reporter zhangqin Coordinator/Chi Haibo

Pack fruit, cooked food, leftovers … Are you using the plastic wrap correctly?

Products such as plastic wrap and fresh-keeping bag can be seen everywhere. We are used to tearing off a piece of plastic wrap to seal the cut watermelon and other fruits, and opening a fresh-keeping bag to repackage dishes to prevent cross-taste.

What gives these materials the ability to "keep fresh"? What should I pay special attention to when using it?

Types of plastic wrap

Pe (polyethylene) cling film

The main component of pe cling film is polyethylene resin, which is mainly used for packaging ordinary fruits and vegetables.

Pe plastic wrap is considered as a safe packaging material, which can package foods that come into direct contact.

Pe plastic wrap has good waterproof and air permeability, and is suitable for packaging fresh vegetables and frozen foods. However, due to its good air permeability, it is not suitable for packaging foods with high oil content and easy to be spoiled by oxygen.

Pvc (polyvinyl chloride) preservative film

Pvc is a kind of polymer compound formed by addition polymerization of vinyl chloride monomer, which has the characteristics of good transparency, high viscosity and good elasticity, but these characteristics are based on its great harm to people.

The monomer vinyl chloride of pvc has anesthetic effect, teratogenicity and carcinogenicity at the same time. Long-term contact will cause harm to human nervous system, liver and embryo, and its human safety limit is 1 mg/kg body weight.

At the same time, the thermal stability of pvc preservative film is poor, and heating or microwave treatment will cause it to crack and produce toxic vinyl chloride.

In addition, in order to make pvc material into a soft and transparent preservative film, it is inevitable to add plasticizer to change its property state during manufacturing.

Some pvc cling films may contain ethylhexylamine (deha) as a plasticizer, which will destroy the endocrine system of human body, be carcinogenic, and be easily separated from the packaging materials and enter the human body with food.

Therefore, the General Administration of Quality Supervision, Inspection and Quarantine requires food preservative film manufacturers to indicate the material and scope of application on the product packaging, and it is forbidden to use deha in the production of pvc preservative film, and it is also forbidden to directly package meat, cooked food and oily food with pvc preservative film.

Pvdc (polyvinylidene chloride) cling film

Pvdc cling film is composed of polyvinylidene chloride, a small amount of plasticizer, stabilizer and other additives, which is mainly used for packaging some cooked food, ham and other products. It has the characteristics of good freshness, firmness and easy attachment, and can prevent water evaporation. It is superior to pvc preservative film in heat resistance and safety.

Pvdc cling film can be used for both refrigerator preservation and microwave heating, and its temperature range can reach -60℃~140℃.

Plastic wrap is not everything.

Plastic wrap has the advantages of preventing food from cross-flavor, reducing bacterial pollution and maintaining food nutrients.

It has certain air permeability and limits the loss of water, can adjust the oxygen content and water content around food, and at the same time block dust and bacterial pollution to a certain extent, thus prolonging the shelf life of food.

But it is not a "universal product" for food preservation.

Plasticizer will dissolve into food in water or oil above 60℃, so it is best not to keep cooked food and food containing a lot of oil with plastic wrap.

Fruits and vegetables with high moisture content are more suitable for preservation with plastic wrap, such as apples, pears and watermelons.

It is recommended to choose pe plastic wrap, especially when it is used for meat, fruit and other foods.

Pvdc plastic wrap has better moisture retention, and can provide longer fresh-keeping time compared with pe plastic wrap.

When buying plastic wrap, you should pay attention to the specific name or chemical formula on the package, and at the same time, you must choose products marked with the words "food use".

ShangguanNo. Author: Shanghai Huangpu

New energy vehicles go to the countryside to speed up again

  Source: Ministry of Industry and Information Technology Cartography: Wang Zheping

  Recently, new energy vehicles have repeatedly received favorable policies for going to the countryside. The the Political Bureau of the Communist Party of China (CPC) Central Committee meeting stressed that it is necessary to boost large-scale consumption such as automobiles, electronic products and homes; The "Measures on Restoring and Expanding Consumption" proposes to implement policies such as building a high-quality charging infrastructure system, supporting new energy vehicles to go to the countryside, and continuing and optimizing vehicle purchase tax reduction and exemption for new energy vehicles; The National Development and Reform Commission and the National Energy Administration issued opinions, calling for accelerating the construction of charging infrastructure and better supporting new energy vehicles to go to the countryside and rural revitalization; The Ministry of Commerce made it clear that the "Consumption Boosting Year" would focus on key areas, and organized the activity of new energy vehicles going to the countryside in thousands of counties and towns … …

  What is the implementation of relevant policies? How to better meet the needs of the masses? How to build a supporting service system? The launching ceremony of this year’s new energy vehicles going to the countryside was held in Jingmen, Hubei Province a few days ago. The reporter conducted an investigation here.

  — — Editor

  "I deliberately got up early on weekends, and there are still many people watching cars!" The 4S shop was crowded, and Li Chengwu and his wife followed the salespeople closely. The newlyweds, who live in Levin Town, Shayang County, Jingmen City, planned to buy a new energy car at the beginning of the year, so they have to make a good choice when they go to town this time.

  In June this year, the Ministry of Industry and Information Technology, the National Development and Reform Commission, the Ministry of Agriculture and Rural Affairs, the Ministry of Commerce, and the National Energy Administration simultaneously launched the 2023 new energy vehicles going to the countryside in Wuxi, Jiangsu, Qionghai, Hainan, and Jingmen, Hubei. The model that Mr. and Mrs. Li Chengwu are interested in happens to be among them, and there are many discounts.

  The construction of charging piles goes ahead, and the market demand in counties and townships continues to be released.

  Why is China-Italy new energy vehicle? Li Chengwu and his wife calculated the account: buy a model with a battery life of 200 kilometers and charge it once a week to meet the daily travel needs; Using public fast charging facilities can save three or four thousand yuan a year compared with fuel vehicles.

  Convenient and affordable, it has become the main consideration for many customers to buy cars. Haodi Company is BYD’s general agent in Jingmen area. Chen Quan, sales manager, told reporters: "Recently, the company’s monthly turnover has stabilized at more than 200 vehicles, and many more customers have bought cars from counties and villages." It is understood that BYD originally had only two 4S stores in Jingmen, and now it is planning to open new stores in county-level cities such as Jingshan and Zhongxiang.

  Why should we promote new energy vehicles to the countryside? According to the study of electric vehicle travel in rural areas of China, by 2030, there will be nearly 160 vehicles with 1,000 people in rural areas of China, with a total of over 70 million vehicles, and the market scale may reach 500 billion yuan. Peng Yong, deputy director of Jingmen Economic and Information Bureau, said that the market penetration rate of pure electric vehicles and plug-in hybrid vehicles is 15.9% and 10.4% in counties and villages of the city, which still has great growth potential compared with the central city.

  What is the first problem to be solved to stimulate growth potential? Cui Dongshu, secretary general of the National Passenger Car Market Information Association, believes that the construction of charging piles must be laid out in advance for new energy vehicles going to the countryside.

  When the reporter came to Levin Town, he met Dai Feilong, a new energy owner, in a parking lot: "Two years ago, there was a slow-filling pile in the town, and I bought a pure electric car. Now a new fast-filling pile has been built, which can be fully charged in less than an hour, which is more convenient. "

  Since 2021, State Grid Jingmen Power Supply Company has built charging facilities in 52 towns and villages in the city. This year, it has completed upgrading and expansion, and built 58 DC fast charging stations, equipped with 112 fast charging piles and 120 slow charging piles, which is the first in the province to achieve full coverage of fast charging piles in towns and villages. From January to June this year, the charging capacity of charging piles in Jingmen township increased by 182.33% year-on-year, ranking first in the province.

  "The charging piles at the entrances and exits of township expressways and popular tourist villages are used frequently, and we have added fast-filling piles." Huang Kai, head of the electric vehicle business of State Grid Jingmen Power Supply Company, believes that the charging infrastructure should be built in front, so that consumers can have no worries.

  When new energy vehicles enter the village, the demand for personal charging piles is greater. Not long ago, Yu Liangrui, a villager from Zengmiao Village, Zilingpu Town, Dongbao District, Jingmen City, applied for charging pile installation business on his mobile phone. On the same day, the staff of State Grid visited the site to complete the on-site investigation; Two days later, the charging pile was electrified. "Many families in rural areas have single-family houses and have enough space to install personal charging piles. This advantage makes it difficult for towns to compete. " Huang Kai said.

  Demand upgrade leads product iteration, and vehicle functionality is continuously enhanced.

  Set up tents, put up banners and put gifts … … In Macheng Town Square, Duodao District, Jingmen City, the off-line tour of new energy vehicles attracts residents to experience.

  For several years, Chen Quan first drove the demo car to the boundary far away from the city. "In less than half a day, the contact information of several interested customers has been added." Chen Quan said that there will be more exhibitions in towns and villages.

  Xiao Liu, a staff member of Macheng Industrial Park, bought a plug-in hybrid car two years ago. Now he is a little annoyed. "I should have bought pure electricity at the beginning." She found that the touring models not only have longer cruising range and faster charging speed, but also add practical new functions such as smart parking and digital keys.

  Compared with the early years when cars went to the countryside to mainly solve the problem of "whether there is", now with the improvement of consumption level, new energy vehicles have to solve the problem of "whether it is good or not". Chen Jintao, deputy director of the Economic and Information Bureau of Duodao District, exemplified that some middle-aged consumers are facing the demand for vehicle redemption, and whether the cruising range is sufficient is the main consideration; For young people who buy the first car, the new "gameplay" related to assisted driving and intelligent network connection is more attractive.

  The reporter consulted the catalogue of four rounds of new energy vehicles going to the countryside and found that only 10 companies and less than 20 models initially participated in the countryside, most of which were traditional car companies. This year, the number of models going to the countryside has increased to 69, which has opened up the distinction in terms of price, function and power, and some mid-to high-end models have also been included.

  Products are iterative with the upgrading of demand, and so are commercial vehicles. According to the data of the Ministry of Industry and Information Technology, in 2022, the sales of new energy commercial vehicles in China accounted for about 1/10 of the total sales of commercial vehicles. The reporter learned that among commercial trucks, the micro-closed van that the masses call "micro-surface" is the mainstream model and is often used for short-distance logistics transportation.

  Liu Jun is a pure electric micro-surface user of Dongfeng Motor, who lives in Tuanlinpu Town, Duodao District. In the early morning, he drove agricultural products to the vegetable market in the city. In his spare time, he took orders to distribute food and department stores on the group buying and pulling platform, and traveled more than 100 kilometers every day. However, occasionally receiving a list of decoration building materials made him quite puzzled: "It is not easy to put a water pipe three or five meters long in the car. If only the cargo compartment were bigger. "

  For Liu Jun, the car should not only run fast but also save money and be reliable. Pan Chonggang, deputy director of the commodity planning department of Dongfeng Motor Co., Ltd. said that the pure electric micro-surface currently sold by Dongfeng is based on the original passenger micro-surface "oil to electricity", and the loading capacity is limited. To this end, they decided to upgrade the product line and design a brand-new pure electric micro-surface model.

  The R&D team was stationed in rural areas of Zhejiang and Hubei to investigate the use scenarios such as express delivery into the village. "We found that the hillside into the village is slippery, and the car should have good handling stability and sufficient power; In order to facilitate loading and unloading, the volume of the cargo compartment should be increased to at least 5 to 6 cubic meters, and spacious side doors and tailgates are needed. " Pan Chonggang said, "The new pure electric micro-surface car has been tested and is planned to go on the market next year."

  The supply of affordable vehicles needs to be strengthened, and shortcomings such as after-sales maintenance need to be filled.

  From urban areas to counties, towns and villages, with the gradual sinking of the market, consumers need different models. The reporter found in the interview that the cruising range of 300 kilometers is too short for some urban consumers, but it may be too long in the village — — Many villagers make a living by farming or small businesses, and are unwilling to pay for miles they don’t need.

  Zheng Peng, secretary-general of Hubei Electric Vehicle Circulation Association, said that the models purchased by county and township consumers are mainly A00-class mini new energy vehicles and A0-class small new energy vehicles, accounting for about 60% to 70%, and the price ranges from 50,000 to 80,000 yuan.

  "For some consumers who only need to travel instead of walking, electric three-wheeled and four-wheeled vehicles are more attractive; For fellow villagers with production needs, the cargo capacity of new energy trucks is generally small, and there are not many optional brands of commercial vehicles such as pickup trucks, light trucks and micro-noodles. " Zheng Peng suggested that relevant enterprises should reduce costs and increase efficiency from product design, supply chain and other aspects, develop more "explosive" products for the rural market, and constantly explore the market "blue ocean".

  What aspects can be improved to promote new energy vehicles to the countryside?

  The charging facilities in township areas are scattered, and the construction and management costs are high. Huang Kai opens the monitoring page of the charging station in the operation center of State Grid Vehicle Networking Platform on the computer, and four colored circles indicate the utilization rate, failure rate, offline rate and charging success rate of the station. He admits that in the past year, the supply of slow filling piles in towns and villages in the city has exceeded demand, and the utilization rate is generally not high; However, in the peak period of returning home such as the Spring Festival, the demand for fast filling piles is in short supply.

  According to estimates, according to the calculation of adding 6,000 new energy vehicles every year in Jingmen City, the centralized charging load in the city will reach 250,000 kilowatts in 2030. "There are more and more users installing personal charging piles now. Adding a slow-filling pile is equivalent to adding four 1.5-horse air conditioners, which greatly improves the requirements for transformer capacity. " Huang Kai is worried that the relatively weak rural power grid is difficult to load.

  At the same time, the blocking point of after-sales maintenance also needs to be cleared. Some car owners report that many auto repair shops can’t repair new energy vehicles. Zheng Peng introduced that the maintenance of fuel vehicles is mainly mechanical maintenance, while the maintenance of new energy vehicles is mainly in battery circuits, and having an electrician’s operation certificate is the basic threshold. At present, there is a market gap of more than 40% for technicians who are proficient in "three electricity" maintenance such as batteries, motors and electronic control systems.

  Focusing on the bottleneck problem that restricts new energy vehicles from going to the countryside, relevant measures are being improved from top-level design to local practice. The "Implementation Opinions on Accelerating the Construction of Charging Infrastructure to Better Support New Energy Vehicles to the Countryside and Rural Revitalization" puts forward 11 specific measures in three aspects, and strives to promote new energy vehicles to the countryside by moderately advancing the construction of charging infrastructure and optimizing the purchase and use environment of new energy vehicles. "Some vocational schools in Hubei Province have set up new energy auto repair majors, and the Provincial Electric Vehicle Circulation Association is also carrying out new energy auto repair technician training business, and plans to jointly develop and launch new energy vehicle battery maintenance standards with insurance companies." Zheng Peng said that the road will be smoother when new energy vehicles go to the countryside.