In order to enable a broader participation of low-voltage electrical appliance professionals in standardization work, to understand standardization policies and trends, the National Low-Voltage Electrical Appliance Standards Committee is organizing a series of events for the 2023 Annual Standardization Conference and Low-Voltage Electrical Appliance Technology Conference from September 24th to 26th in XIAN.
In 2023, under the leadership of the higher authorities and the joint efforts of various committee members, the National Low-Voltage Electrical Appliance Standards Committee actively organized and carried out various standardization activities, achieving fruitful results: earnestly implementing the National Standardization Development Outline, in accordance with the new version of the "National Standard Management Measures," focusing on the construction of the new standard system for distribution and utilization of electrical equipment and systems, and emphasizing the research and formulation of professional and cross-disciplinary technical standards. They organized specialized training, advanced technology seminars, and various standardization activities, promptly communicated international standardization developments, guided product transformation towards green, low-carbon, digital, networked, and intelligent directions with standards, and supported technological reform and innovation in low-voltage electrical appliances.
During this conference, our company's attendees are Mr. Huang Qi Bo, the Chairman, and Mr. Jock Li, the Vice General Manager. As a member of the National Fuse Standardization Technical Committee's Sub-Technical Committee for Miniature Fuses, Mr. Huang Qi Bo has been invited to participate in standardization work meetings held by various units on multiple occasions and has also been involved in the revision of national and industry standards. We believe that through participation in this conference, XuCheng Electronics(Shenzhen)Corp.,LTD will gain a deeper understanding of the development trends in the fuse industry and have clearer goals for the future."
In a switching power supply circuit, the power input terminal generally uses a regular fuse (fuse, fuse resistance) in series with the circuit of the power input terminal. When an overcurrent fault occurs in the power circuit, the fuse will blow, disconnecting the power input circuit to avoid damaging large components. The markings on the circuit board are generally fuses, similar to resistance markings, but the terminal leads pass through a rectangular box (resistance markings do not pass through). I'm not saying you don't have this ability, but electricity is very dangerous. The fuses are all on the side of the mains. If you accidentally turn on the power, and if the machine's malfunction is not resolved, you will replace the fuse, which is likely to explode again. If the fixed value of the fuse you replace is too large, it is not a fuse. The fuse has a resistance value. In fact, there is resistance to the wire, but the resistance of the wire is very small (the nature of the wir
What are the drawbacks of LED driver power? With the development of LED applications, LED driver power has also been widely used. Last week, we talked about the development trend of LED driver power. Today, the editor will briefly explain the shortcomings of LED driver power. Firstly, the technical personnel of companies that produce LED lighting and related products do not have sufficient understanding of switching power supplies. The power supplies produced can work normally, but some critical evaluations and electromagnetic compatibility considerations are not sufficient, and there are still certain hidden dangers; (Related knowledge: The development trend of LED power drive) Secondly, most LED power supply manufacturers have transitioned from ordinary switching power supplies to LED power supplies, and their understanding of the characteristics and use of LEDs is not yet sufficient; However, currently there are almost no standards for LEDs, most of which refer to the standar
The overcurrent protection application of self recovery fuses - There are two optional types of self recovery fuse materials: radial lead packaging and surface mount. The function of self restoring fuses is suitable for various design applications. In daily life, there are many plug and play models of device products, and "plug and play" applications include motherboards and many peripheral devices that can be frequently connected or disconnected from computer ports. For example, devices connected to mice, keyboards, audio, networks, monitors, and USB ports may malfunction, the connecting cables may be damaged, or incorrect connections may occur. The application of self restoring fuses for overcurrent protection - therefore, the ability to reset after correcting incorrect connections is particularly attractive. Some of these applications use radial lead devices, while others are more suitable for surface mount devices. (Related knowledge: Application cases of self recovery fuses)
Air purifiers, also known as air filters, can filter out impurities in the air and output clean air. In this era of industrial pollution and severe smog, air purifiers have become essential equipment widely used in homes, hotels, and other places. It consists of three parts: control circuit, mechanical and detection status indication. The mechanical part involves the fan motor passing indoor air through a filter and circulating impurities to achieve air purification. The core of an air purifier is a small motor. In this transmission system mechanism, small motors are prone to overload or rotation due to problems such as mechanical lack of lubricating oil, bearing wear, rust, dust, etc., ranging from burning out the motor to burning out the motor and wires, and even leading to fire accidents. So it is necessary to design overload protection and gambling protection circuits for the motor to ensure safe operation. Traditional designs often use bimetallic temperature controllers as o
(Thermal Links), also known as: Temperature Control; It is a disposable element connected to the circuit with a very accurate and reliable temperature protection circuit. When the working environment temperature exceeds the rated temperature of the Thermal cutoff, the chemical heat sensitive bean in it will generate high temperature and quickly interrupt the circuit, avoiding the harm caused by overheating. After the temperature control fuse blows, it is necessary to manually replace it with a new one to restore normal operation of the circuit. Temperature control fuses are widely used in: microwave ovens, Water dispenser, disinfection cabinets, electric irons, toasters, barbecue machines, coffee makers, kettles, dryers, refrigerators, electric water heaters and other electrical equipment. The Thermal cutoff has the function of detecting abnormal temperature and cutting off the circuit. It can detect abnormal temperature rise of household or industrial electrical products and qui