2023.09.19 Customer Annual Factory Audit_Industry Trends_News & Events

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October 07,2023

What is overcurrent Fuses protection.high voltage fuse blown microwave

　　　　What is overcurrent protection - Short circuit protection is characterized by high setting current and instantaneous action. Electromagnetic current releases (or relays) and fuses are commonly used as short-circuit protection components. The characteristics of overload protection are small setting current and inverse time action. Thermal relays and delayed electromagnetic current relays are commonly used as overload protection components. (Related knowledge: What is the relationship between the rated current and the fusing current of a fuse?)　　Fuses are also commonly used as overload protection components without significant impact current.　　What is overcurrent protection - In TN systems, when using fuses as short-circuit protection, the rated current of the melt should be less than 1/4 of the single-phase short-circuit current; When using a circuit breaker for protection, the setting current of the instantaneous action or short delay action overcurrent release of the circuit break

September 12,2023

Analysis of Two Reasons for Blowing of Self Recovery Fuses during Operation.fast blow fuse screwfix

　　　　Self recovery fuses are one of the preferred protective components for many electronic circuits. When a self recovery fuse is in operation, it is inevitable that the circuit will blow. For recoverable fuses that blow in daily use, we must understand the cause in order to solve the problem with the circuit board. Below, we will follow the editor to understand the two situations where self recovery fuses blow during operation:　　Scenario 1: The self recovery fuse is broken in the middle and intact on both sides, which is caused by excessive load current causing the fuse to blow or be damaged, and the melting point to decrease, but the current is not too high.　　Scenario 2: When the self recovery fuse melts, there are burn marks and black and white ash near the fastening screws. This is caused by an instantaneous short circuit of the power supply and a high short-circuit current.　　From the above two situations, it can be concluded that when a self recovery fuse blows during operation, i

November 07,2023

eve temperature balancing mattress protector.Principles for selecting fuses and fuses

　　　　1. Select the model of the fuse according to the circuit requirements and installation conditions. For circuits with small capacity, choose semi enclosed or unfilled enclosed; The choice for high short-circuit current is the enclosed type with fillers; Select fast fuses for semiconductor component protection.　　2. Select the rated voltage of the fuse according to the line voltage.　　3. Select the rated current of the fuse according to the load characteristics.　　4. The selection of different levels of melts requires mutual coordination, with the latter level being smaller than the previous level. The current on the main switch and each branch line is different, and the selection of fuses is also different. If a short circuit occurs in the circuit, the 15A and 25A fuses will fuse simultaneously, and the protection characteristics will lose selectivity. Therefore, only by maintaining a 2-3 level difference between the main gate and the branch can such a phenomenon not occur. If the low-

October 19,2023

normally open vs normally closed.What is a self recovery fuse

　　　　1、 What is a self recovery fuse　　Self recovery fuse is an overcurrent electronic protection component that uses a polymer organic polymer under high pressure, high temperature, and sulfurization reaction conditions　　After mixing with conductive particle materials, it is processed through a special process. Habitually applying PPTC (Polymer Positive Temperature)　　Coefficent, also known as a self restoring fuse. Strictly speaking, PPTC is not a self restoring fuse, and Resettable Fuse is a self restoring fuse.　　2、 Principle of self recovery fuse　　The self recovery fuse is made of high-tech polymer resin and nano conductive grains through special processing. Under normal circumstances, nano conductive grains　　The body forms a chain like conductive path along with the resin based link, and the fuse operates normally; When a circuit experiences a short circuit or overload, the large current flowing through the fuse causes its temperature to increase. When the Curie temperature is reache

August 01,2023

The Application of Lute Technology's Self Recovery Fuse for Overflow Temperature Protection on Intelligent Wearable Devices.ceramic chip fuse

　　In recent years, with the rapid progress of science and technology, the market of intelligent wearable devices has become more and more popular. At present, intelligent wearable devices such as smart bracelets, smart watches, Smartglasses, health wear, ear wear devices and somatosensory control are increasingly popular in the market. Intelligent wearable devices can bring convenience and guarantee to people's lives through software support, data interaction, cloud interaction and other ways. Intelligent wearable devices require direct contact with the user's body, so the safety and stability of the product are crucial. Below, we will provide a detailed introduction to the potential safety hazards and solutions of intelligent wearable devices.　　The safety hazards of intelligent wearable devices include the following three points:　　1. PMIC (Integrated Power Management Circuit) failure　　The product designer will add some overcurrent protection components to the charging port to cope wit

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2023.09.19 Customer Annual Factory Audit

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2023-09