1 Can a TV be as thin as a mobile phone and not matter? Back to the top [PConline Talk] In life, most of us think that it is a good thing to be heavy (except for weight). For example, to buy watermelons, we like to savor the whole one to squat and feel whether it is thick enough. To buy a rice cooker and lift it up, if there is a large volume but it is much heavier, we generally think that it is heavier. That will only be better, at least in the heart will think heavier material more full, heavier will certainly be better? Is it the same for household appliances that everyone lives in? Here's to talk about the "heavy" of home appliances. Are televisions getting bigger and thinner and thinner and more meaningful? Previously old-fashioned TVs were very bulky. A 21-inch CRT TV had a weight of 25 kilograms, but now a 60-inch LCD TV has a weight of 25 kilograms. Of course, the structure of the television has changed. The previous CRT television display principle was to emit electrons through a cathode electron gun in a vacuum tube, and to radiate to the fluorescent screen under the action of the high voltage of the anode to make the phosphor powder emit light. The depth of space required for this structure is very large, and it all reacts under high voltage conditions. The vacuum tube needs a very strong material composition. The television industry has gone through for nearly half a century. Nowadays, high-end LCD TVs and OLED TVs can already be very light and thin. In 15 years, Sony released 4.9mm X9000C LCD TVs. In 16 years, LG is offering 2.57mm. G6P OLED TV. It can be found that the entire TV industry continues to pursue extreme thinness. But is the TV really thinner? From the display point of view, light and beautiful appearance is more important. TVs are not often mobile home appliances. Once they are fixed, they will rarely be moved. In particular, TV screens are getting larger and larger. They are not necessarily limited to a fixed location for viewing. The mobile TV needs are even smaller. In terms of aesthetics, of course, the lighter the better the TV. The simple and slim TV and modern interior design can be better integrated. Coupled with the current wave of augmented reality technology is unstoppable, the future appeal to the screen may gradually weaken. It is reported that LG is currently developing wallpaper TV, it is the use of OLED can do very thin features, the technology and the environment better together. The best technology is to make you feel the existence of technology. Judging from the display effect, LCD should be heavier. OLED itself does not have the structural characteristics of the backlight, it is destined to be a thin and light product. However, LCD TVs change the backlight mode and reduce the backlight power consumption to achieve ultra-lightness, which does not help the picture quality. The well-known side-entry backlight is a compromise product of the transition from downlight to downsizing. Direct-lit backlight is to evenly distribute the LED to the rear of the LCD panel. The backlight can be transmitted to the entire screen very evenly. Generally, the brightness and darkness of the backlight can be independently adjusted by dividing the LED area. Sony's latest release of the Z9D is more like this. The direct-lit backlight achieves independent control of each LED. The actual display effect is outstanding. The disadvantage is that it is very heavy and consumes a lot of power. The side-entry backlight only needs to distribute the LED around the screen, and the light guide plate transmits the light to the entire screen. One problem that is difficult to solve with such backlighting is that the backlight is uneven, even in high-end side-into LCD TVs. The advantage is that the energy consumption is low and it can be made very light and thin. So, if you buy a LCD TV, if you really look at the picture quality, I'm still more inclined to a thicker direct-lit LCD TV. From the aspect of appearance material, the emphasis on design appeal is greater than the functional requirement. The current TV housing structure can be roughly divided into five parts, a screen, a frame, a base, a back board, and a back cover. The weight of the same size screen is almost the same. In addition to other parts of the rear cover, the general high-end TV will use alloy material. Especially the base, this most intuitive highlights the difference. For functional requirements, what material is used for the pedestal is not important. The important thing is its mechanical design and the fit between the structures. Of course, the use of a heavy metal base will give people a very solid feel. A very important functional purpose of the panel frame and border is to protect the screen. The design without a panel frame can bring better visual effects, but the protection of the screen itself will be weaker. Although there is no functional requirement for the border material, but for the sake of beauty, the design of the border is also a place where manufacturers focus on research. The back plate and back cover actually have a very important role - heat dissipation, there is also an important requirement, that is, flame retardant, corrosion resistance. Because the LCD TV's main board, power board, and LCD driver board are all concentrated in the back, and the heat generated by the LCD screen will also be transmitted to the backplane in large quantities. The use of a metal back plate is very beneficial to heat dissipation. The back cover is at least the engineering plastic that needs to be flame-retardant and corrosion-resistant. In general, the outer shell material of the TV is not necessarily the heavier the better, but definitely not the lighter the better. From the aspects of display effect, appearance design, screen size, materials used, etc., if we encounter the TV of the same size and screen material at the moment, there is a clear distinction between the severity of the TV, and we can make a good comparison of the heavier ones. Whether or not to do better in the appearance of materials and product design work, this is also a kind of benign inference for consumers to buy television. 2 The heavier and more stable the washing machine, but the heavier one is better? Back to the top Washing machine is heavier because there are "bricks"? Recently, several men in the group have been frustrated by several washing machines. Not because the washing machine is not good, but because there are more washing machines recently. We all realize how heavy the washing machine is! In particular, the weight of many high-end drum washing machines is between 150-200 pounds. Moving up, the heart really feels that these things are really "genuine" and full of materials! So is the washing machine really heavier? From the aspect of running stability, the heavy-duty washing machine will run more stable and quiet. In particular, many drum washing machines will also be equipped with weight blocks inside the fuselage to balance the weight distribution of the washing machine in order to achieve a more stable operation. . E-commerce website can also buy weight blocks In various e-commerce channels, we can buy a variety of counterweights for various types of washing machines. Some large counterweights can grow up to 40 cm and weigh up to 10 kilograms. A counterweight can add 20 pounds to the washing machine. Can the washing machine be heavy? Metal shells increase weight but make the machine more stable Not to mention the weights, the weight of the washing machine is mainly concentrated in the internal motor, the metal inner barrel, and the surrounding shell. The same washing capacity of the drum washing machine, from the size, materials, motor, inner barrel, whether it can be dried in several aspects, the total weight may differ by more than 30 pounds, which is a very large weight difference. The lighter washing machine products that we usually use are generally 6kg-8kg washing capacity washing machines. The same washing capacity of the pulsator washing machine and drum washing machine, pulsator washing machine weight is only half of the drum washing machine, in addition to the weight difference caused by different structural design, there is no need to configure the cast iron or cement in the fuselage of the pulsator washing machine. The counterweights stabilize the barrels of the washing machine, which reduces the weight of the internal "bricks" and naturally weighs a lot. In general, for washing machine products, if you are purchasing a drum washing machine, the heavier products will have better stability and noise control performance. It will be difficult for ordinary consumers to distinguish the internal motors when they purchase them. The good and bad and the overall durability. Therefore, if you are in need of a product that knows where to go to the store to purchase data, when purchasing a washing machine, you may wish to take out the weight data of the washing machine to compare several products in your mind, and then combine the brand's Word of mouth and some referenceable internal hardware introduction to analyze what products to choose. 3Refrigerator air conditioner weight may be ignored, what to look at? Is the refrigerator as heavy as possible? When the refrigerator is running, it does not need to have a high-speed rotating inner drum like a washing machine. Therefore, the refrigerator does not need some weights to increase the stability, and its overall weight is not particularly exaggerated. Some refrigerators with internal volume exceeding 300 liters The weight may not be comparable to a 9KG high-end washing machine. Inside the shell around the refrigerator is a foam layer for insulation. These materials are relatively light. The weight of the refrigerator mainly comes from the compressor of the refrigerator, the material covered by the door wall plate, and some internal metal or plastic parts. Compared with refrigerator products of almost the same volume, the heavier it will be, the better it will be. For this problem, we still have to look at it comprehensively. Heavier machines, the difference in internal materials that we can discern with the naked eye is actually not much, the same volume, the heavier refrigerator, the weight of the internal compressor may be larger, it may be the refrigerator door The density of the foam material in the stencil is greater, and these are all possible. Therefore, when we buy refrigerators, we can also compare the weight of refrigerators, we can also observe the door wall version, switch the refrigerator door to determine the overall work, internal compressors need our brand reputation and warranty maintenance policy Learn to indirectly determine quality. The weight of the air conditioner may not be concerned Cabinet air conditioner interior It is estimated that in everyday life, when people buy air conditioners, basically no one will pay attention to the weight of air conditioners, and an ordinary household air conditioner is composed of internal and external machines. The entire air conditioning system involves compressors, condensers, outdoor fan systems, and indoor fans. Such as the main components, the various components may involve the design and material density, and ultimately lead to differences in weight, simply comparing the weight of the product does not directly explain the quality of air conditioning. 4 Small Home Appliances Are Small, But Affect the Experience? Back to Top Electric toothbrushes: Weight does not necessarily affect the experience The electric toothbrush can be penetrated into the blind area more effectively than the traditional manual toothbrush to remove dental plaque and protect the oral health. It has gradually been recognized by consumers. And if you want to say weight, electric toothbrushes are definitely heavier than traditional toothbrushes because of the design principle. If you are using electric toothbrush for the first time, it may be a little uncomfortable. Since the brushing method is not changed first, it means that the strength needed to take the handle is very obvious. Then, it should be pointed out that the weight of the electric toothbrush is not a necessary and sufficient condition for the use experience. If the electric toothbrush is a rotating vibrating or sonic vibrating toothbrush, if the handling is not good and the handle is also vibrating when the bristles are vibrating, even if the handle is only 10g, it is lighter than the conventional manual toothbrush, and the brushing experience is very bad. Here we have to insert an advertisement for the Philips Sonicare, because in this experience, the Philips sonic toothbrush handles very well, even if its brush frequency is as high as 31000 times, but the handle vibration is hardly felt when brushing. When the weight factor can basically be ignored. Xiaobian pro-test, in fact, after using it, the weight is basically negligible, not to mention its toothbrush is generally about 140g, strictly speaking, it does not affect the experience. Sweeper: weight is also an important indicator For the sweeper, most people will focus on cleaning ability, intelligence and endurance, but the weight is also an important indicator for sweeping robots. To a certain extent, we can position the sweeper as a "vehicle" that sweeps the ground. Therefore, this involves the issue of balancing the fuselage. In addition to its own weight to ensure the balance of the machine during operation, it can give people the impression that this product is weight, the structure inside is solid, will not cut corners. On the other hand, if the body weight of the sweeping machine is too light, in addition to being affected by too weak collision capacity, it will also have a certain degree of negative impact on climbing and crossing wire barriers. But then again, although the body needs to have a certain weight, it does not mean that the heavier the better. Once the weight of the sweeper's airframe is set too heavy, heavy loads will cause a significant increase in power consumption, which will affect the machine's endurance. Judging from the products on the market, the weight of the current mainstream sweeping machine is generally 3kg-4kg. This is currently a more scientific weight value for sweepers! Buying home appliances is not suitable for "only weight theory" When purchasing home appliances, the idea of ​​"only weight theory" is not scientific. A heavy product does not mean that the final quality and material of the product are absolutely good. Almost all household electrical appliance materials should meet the needs and safety features of home appliances, such as fire protection, corrosion protection, and high strength. Therefore, the purchase of home appliances should be scientific to analyze whether the components of home appliances should be plastic or metal. Such as the washing machine feeding box, due to the need for long-term placement of laundry detergent or washing powder, corrosion resistance must be stronger, simply using metal not only increases the weight, and long-term, the metal is more likely to be corroded, replaced by ordinary corrosion-resistant plastic material This will not only reduce the overall weight of the product, but also increase the durability of the product. Buying cost-effective home appliances can be used as a reference factor in comparison with product weight. Cheaper products must be cost-reduced in terms of materials or design. The principle of a penny-and-delivery product is in most homes. The electrical appliance is still talking. Compared with the high-end drum washing machine and the drum washing machine in the lot, we can see a big difference from the internal counterweight. The high-end drum washing machine basically uses cast iron weights, and the low-end drum washing machine is likely to use cement. The counterweights, these two counterweights may not have much weight difference, but the product is used for a long time, the cement counterweight may appear to be shattered, which will affect the stability of the inner bucket operation, washing machine operation The noise will increase and it may be more prone to failure. The full text concludes: When purchasing appliances, we still have to consider a product in multiple dimensions. The weight can be used as an understanding, but do not simply judge the quality of the product with the weight of the product. Use the most suitable one in the right place. Materials, coupled with a more scientific design, so that regardless of whether the product is really heavy, can bring better quality and better user experience.