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Air Purifier Solution
Air purifiers are also known as "air cleaners", air fresheners, and purifiers. Air purifiers are becoming a "coveted" sunrise industry. At present, the household ownership rate of air purifiers in my country is less than 1‰, and there is huge room for industrial development. Some businessmen even believe that with the public's concern and attention to air quality, it will become a "standard equipment" for families in the future like color TV, bringing an output value of tens of billions of yuan every year. However, compared with the carnival of merchants, consumers have more doubts in their hearts. After comparing for a long time, I can't see why. Is it useful to spend so much money?
At present, the prices of air purifiers sold on the market vary greatly, ranging from a few hundred yuan for cheap to tens of thousands of yuan for expensive. People in the industry bluntly said that the cost of purifiers is not high, and the price tag is several thousand yuan or even more than ten thousand yuan, and the price is falsely high. There are currently two main types of purifiers on the market, active and passive. Active purifiers remove smoke, sterilize, and remove odors by releasing purification factors. However, this method is controversial internationally, because removing low-concentration pollutants in the air will release ozone, which is likely to cause secondary pollution. Passive purifiers adopt the original purification method, which physically adsorbs pollutants in the air through the filter screen, which is basically used in European and American countries. Either way, the cost will not be very high.
1. Brief introduction of air purifier solution
1. The meaning of air purifier
Sandstorms, smog and other phenomena seriously pollute the air and threaten people's health. The concentration of suspended particulate matter in the urban atmospheric environment generally exceeds the standard, the total amount of motor vehicle exhaust pollutants has increased rapidly, sulfur dioxide pollution has been at a high level, and nitrogen oxide pollution is showing aggravating trends. There are many types of pollutants in indoor air, mainly including physical pollution (particles, dust, pollen, animal dander, etc.), biological pollution (bacteria, viruses, mold spores, etc.) and chemical pollution (NOx, SOx and volatile organic compounds wait).
Air purifiers are used in home, medical, and industrial fields. In the home field, stand-alone household air purifiers are the mainstream products in the market. The main function is to remove particulate matter in the air, including allergens, indoor PM2.5, etc., and it can also solve the problem of volatile organic compounds in indoors, underground spaces, and cars caused by decoration or other reasons. Due to the persistent and uncertain characteristics of the release of air pollutants in relatively closed spaces, the use of air purifiers to purify indoor air is one of the internationally recognized methods to improve indoor air quality.
2. Functional characteristics of the air purifier
Air purifiers can absorb, decompose or transform various air pollutants, effectively improving air cleanliness. At present, household and commercial air purifiers are mainly used to remove indoor air pollution. By classifying and sorting out the product functions of mainstream brands of air purifiers at home and abroad, the functions of air purifiers can be divided into two aspects: purification function and additional function. The five core functions of the air purifier are dust removal, odor removal, formaldehyde removal, PM2.5 removal and sterilization. Common additional functions include: humidification, intelligent air monitoring (smoke detection/oxygen detection), timing, remote control, etc.
3. Related technologies of air purifiers
Existing air purifiers use a variety of different technologies and media to provide users with clean and safe air. Air purifiers can be roughly divided into three categories: 1) Passive purification type (filter purification type) uses a fan to draw air into the machine, and filters the air through the built-in filter, which can mainly filter dust, odor, toxic gas and kill some bacteria. 2) Active purification type (no filter type) can be divided into silver ion technology, negative ion technology, low temperature plasma technology, photocatalyst technology and net ion group ion technology according to the active sterilization principle of these products. 3) Double purification (active purification + passive purification). At present, most air purifiers use multiple purification technologies and material media for purification at the same time.
2.The purification principle of the air purifier
For fine particles, what the air purifier needs to do is to let the fine particles stay on the filter in some way. There are many ways to intercept particulate matter, and they can be summed up in two ways: the particulate matter hits itself, or the filter screen absorbs the particulate matter through some force.
The former method is naturally more effective for larger particles, while the latter is more effective for smaller particles. The combination of the two methods is difficult to filter out, that is, those particles that are not too big or small—that is, the standard fine particles (particles with an aerodynamic diameter of 0.3 microns) used to calibrate the filter efficiency.
Purifiers using consumable filters apply both of these filtration principles; while for high-voltage electrostatic filters without consumables, adsorption is the main method, and only one of the methods is applied.
For gaseous pollutants, the currently feasible method is basically only activated carbon. A possible improvement method is to add a catalyst on the basis of activated carbon adsorption, so that the adsorbed gaseous organic substances such as formaldehyde can be decomposed partly, thereby increasing the cumulative purification capacity of the filter.
In short, for different pollutants, the basic principle of the air purifier is to continuously circulate the indoor air, and use some means to absorb the pollutants in the air on the filter, and then discharge the filtered air, and the cycle goes back and forth to Achieve the purpose of resisting pollution sources and purifying indoor air.
3. Air purifier solution development technology
The air purifier is mainly composed of motor, fan, air filter and other systems. Its working principle is: the motor and fan in the machine circulate the indoor air, and the polluted air passes through the air filter in the machine to remove various pollutants. Or adsorption, some types of air purifiers will also install a negative ion generator at the air outlet (the high voltage in the negative ion generator generates DC negative high voltage during operation), continuously ionizes the air, generates a large number of negative ions, and is sent out by the micro fan. Form a negative ion airflow to achieve the purpose of cleaning and purifying the air.
In terms of the working principle of the air purifier, it is mainly divided into three types: passive, active, active and passive hybrid (double purification). According to air purifiers for the removal of particulate matter in the air, there are mainly mechanical filter type, electrostatic electret filter type, high-voltage electrostatic dust collection, negative ion and plasma method, etc.
1. Passive adsorption filtration purification technology (filter purification technology)
The technical principle of the passive air purifier is: use a fan to draw air into the machine, and filter the air through the built-in filter, which can mainly filter dust, odor, toxic gas and kill some bacteria. The filter is mainly divided into: particulate filter and organic filter. The particle filter is divided into a coarse filter and a fine particle filter. The quality of the fan and filter screen of this type of product determines the effect of air purification, and the location of the machine and the layout of the room will also affect the purification effect.
2. Active purification technology (no filter purification technology)
The fundamental difference between the technical principle of active air purifiers and the principle of passive air purification is that active air purifiers get rid of the restrictions of fans and filters, instead of passively waiting for indoor air to be pumped into the purifier for filtration and purification. , but effectively and actively release the purification and sterilization factors into the air, and through the characteristics of air diffusion, it reaches every corner of the room to purify the air without dead ends.
The technologies for purifying and sterilizing factors on the market mainly include silver ion technology, negative ion technology, low-temperature plasma technology, photocatalyst technology and ion group ion technology, etc. The biggest defect of this type of product is the problem of excessive ozone release.
3. Double purification technology (active purification + passive purification)
This kind of purifier is actually a combination of passive purification technology and active purification technology.
4. Suggestions on the purchase of brands of air purifiers
1. Famous brands of air purifiers
At present, there are many brands of air purifiers on the market, and the quality is also uneven. Which brand of air purifier is better? The top ten brands of air purifiers that people often say include, Philips, Sanyo, Midea, Gree, Panasonic, Sharp, Emmett, Yuanda, Honeywell, Yadu, etc. There is also a new air purifier product on the market : Negative ion air purifier. At present, some domestic manufacturers also manufacture air purifiers. When purchasing air purifiers, you should not one-sidedly look for foreign air purifier brands.
When purchasing an air purifier, you should choose from the price, function, brand and after-sales service. If you don’t know enough about air purifiers, you might as well choose the air purifier brands recommended above, some domestic air purifier brands The price/performance ratio is still relatively high.
2. Remote purchase skills of air purifiers
(1) Choose an air purifier according to the area of your home. When choosing a purifier, only scientific purification can better care for the health of the family. Generally speaking, a room of 20 square meters is suitable for using an air purifier of 270m or more, while a room of 40 to 50 square meters should choose an air purifier of 540m device.
(2) Choose according to the principle of the air purifier. The principles of air purifiers mainly include physical purification methods, electrostatic purification methods, chemical purification methods, negative ion purification methods and composite purification methods. Generally speaking, the purification effect of the air purifier with the composite purification method will be better.
(3) Choose according to the after-sales service of the air purifier. When purchasing a purifier, try to choose a purification filter with a regeneration function. Such an air purifier is more convenient to maintain.
(4) The layout of the room affects the purification effect. The air inlet and outlet of the air purifier have a 360-degree circular design, and there are also one-way air inlet and outlet. If the product placement is not limited by the room layout, you should choose a product with a circular air inlet and outlet design.
Different environments and different groups of people have different functional requirements for air purifiers. In the process of designing an air purifier, we must first understand the existing products on the market, the user's demand for the product, and clarify the positioning of the product. Applicable to the environment and target groups, and fully familiar with the corresponding technologies corresponding to different functions.
After clarifying the product positioning, define the functions of the product in a targeted manner according to the needs of users, arrange them according to the priority order of the functions, finally determine the functions of the product, and select the technology corresponding to the functions. Through this process, the air purifier we designed has a clearer target market, meets the needs of target users, and is conducive to the later promotion and marketing of the product.
The above are the details of the air purifier solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have electronic function development needs for household air purifiers and car air purifiers, you can trust us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and material prices as soon as possible. We are the agent of many domestic and foreign chips, including MCU, voice IC, bluetooth IC and module, wifi module. Our development capabilities cover PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development and other hardware and software design. It can also undertake the research and development of smart electronic products, household appliances scheme design, beauty equipment development, Internet of Things application development, smart home scheme design, TWS scheme development, Bluetooth audio development, children's toy scheme development, and electronic education product development.
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