What is the function of the fuse?

The role of the fuse: overcurrent protection and overheating protection. The fuse used for overcurrent protection is the usual fuse (also called current limiting fuse). Fuses for overheat protection are generally referred to as "temperature fuses". Temperature fuse is divided into low melting point alloy shape and temperature sensing trigger shape and memory alloy shape and so on.

2024-01-12

What kinds of temperature fuse are there? The correct use of temperature fuse

1. Organic type thermal fuse, mainly composed of movable contact, fusible and spring. 2. The porcelain tube type thermal fuse is mainly made of insulating porcelain tube. Square shell type thermal fuse, the fusible alloy wire is wrapped with resin, and then connected to the fuse current. 1. The temperature fuse must be used reasonably within the specified parameters, and must meet the specifications of the fuse type itself. 2. In the actual installation process, in order to avoid transferring stress to the fuse, be sure to pay attention to the displacement and vibration of other accessories. 3. After the fuse is installed, make sure that the ambient temperature will not exceed its maximum operating temperature after the fuse is blown. 4. If the humidity or liquid content of the internal equipment exceeds 95%, it is best not to use a temperature fuse. 5. It is recommended to install two temperature fuses with different fuse temperatures at the same time to deal with various emergency situations.

2024-01-12

What are the types of temperature fuse?

What are the several types of temperature fuse: 1. Organic type temperature fuse It is composed of a movable contact, a meltable and a spring. The working principle is that the current flows when starting, so that the temperature of the working environment rises, the meltable melts, and the elasticity of the compression spring becomes weak, which causes the left lead and the movable contact The current is cut off and the circuit is disconnected. 2. Porcelain tube type temperature fuse This type of fuse is named after it is made of insulated porcelain tube. During the working process, the temperature rises to liquefy the mixture. After reaching the melting point, the surface tension of the molten alloy increases, and immediately shrinks from both ends of the lead, and the current is disconnected. Form a permanent cut-off loop. 3. Square shell type temperature fuse This type of fuse uses a special resin to wrap the fusible alloy wire, which is then connected to the current of the fuse. When working, after the circuit is connected, its temperature rises, the fusible alloy melts, and the surface tension becomes larger. After reaching the rated temperature, the wire is disconnected and the circuit is cut off.

2024-01-12

What is a metal shell temperature fuse

1. what is a metal shell temperature fuse? The metal shell temperature fuse is a protection element based on heat-sensitive material. It is packaged with a metal shell and can automatically disconnect the current when the circuit temperature exceeds a certain threshold, thereby protecting the circuit and equipment. Advantages of 2. metal shell temperature fuse High temperature trigger: The metal shell temperature fuse has high temperature trigger characteristics. When the circuit temperature exceeds the set value, the fuse will quickly respond and disconnect the current to prevent the circuit and equipment from being damaged by excessive temperature. Fast response: The metal shell thermal fuse has a fast response speed and can quickly cut off the current to ensure that the circuit and equipment are protected in time. Safe and reliable: The metal shell temperature fuse has been strictly tested and certified, has reliable power-off and reset performance, provides safety guarantee for electronic equipment, and prevents fire and equipment damage. Long life: The metal shell temperature fuse adopts high-quality heat-sensitive materials and metal shell structure, which has excellent durability and stability, and can maintain good protection performance during long-term use. Application field of 3. metal shell temperature fuse Metal shell temperature fuses are widely used in various electronic devices and circuits. It can be used in household appliances, power equipment, lighting equipment, power tools, as well as automotive electronics, aerospace, medical equipment and other fields to provide reliable temperature protection for various equipment.

2024-01-12

What are the main sales currents? 10A 15A 16A

Surge surge thyristors and discharge tubes can only be used for transient overvoltage protection, while polymer positive temperature coefficient self-recovering fuses can only be used for overcurrent protection? What is the maximum current and voltage they can withstand? Generally speaking, traditional overvoltage protection devices are mainly used for transient overvoltage protection, but they are also suitable for long-term voltage stabilization conditions that do not exceed their rated power. Self-recovery fuse can not only be used for over-current protection, it can also be used for over-temperature protection, or current/temperature protection under the joint action, in addition, can also be used with IC for temperature detection, feedback temperature signal protection. Current self-recovery insurance

2018-05-08

Fuses improve electric toy safety

With the development of science and technology and the progress of society, people pay more and more attention to the intellectual development of infants and young children. Various educational toys are springing up one after another, including electric and non-electric, with thousands of types and quality requirements. When people buy toys, they often consider the play function of toys and ignore the safety of toys. The quality problems of many toys are only paid attention to when an accident occurs, but it is too late and has already caused harm to people, and some injuries may be accompanied by life. It can be seen how important it is to improve the safety of electric toys. In foreign countries, especially developed countries

2018-05-08

What are the main applications of fuses?

It can be lifted and reclaimed at will, saving space, simple and practical, is the development direction of modern family applications, is one of the necessary products for home improvement in the future, and has a good market prospect. The power of the remote control drying rack is driven by a small motor. The weight of different drying racks is different and limited. If the weight of the drying clothes exceeds the limit, the small motor will block and overload, which will quickly burn out the small motor. Therefore, the small motor must design overload and block protection circuits to ensure its reliability and stability. For the protection of the small motor of the drying rack, bimetal thermostat was often used for protection. The circuit of the small motor coil temperature rise is disconnected and the circuit of temperature decrease is disconnected.

2018-05-08

Working principle of thermal fuse

Thermal fuse is also called temperature fuse, temperature fuse, etc. Thermal fuse is a non-resettable one-time protection element, string into a variety of electrical power input, its role for overheating protection. When the use of household appliances appear abnormal temperature, or temperature control failure caused by temperature rise is too high, the thermal fuse quickly break the circuit. In order to ensure the normal use of household appliances, especially electric heating appliances, and improve their safety performance, the new national standard clearly stipulates that household appliances must be installed with thermal fuses to prevent overheating of electrical appliances from causing fires and endangering personal safety. Tamura thermal fuse is widely used in: all kinds of motors, copiers, fax machines,

2018-05-07

Application range of temperature fuse

Thermal fuse is a component used to protect electrical equipment from overheating and overcurrent, and is widely used in various household appliances, industrial equipment and electronic products. The following are some common application ranges of temperature fuses: Household appliances: such as rice cookers, electric pressure cookers, induction cookers, electric water heaters, air conditioners, refrigerators, washing machines, etc. These electrical appliances will generate heat during use. If there is a fault inside the electrical appliance, it may cause the temperature to rise and cause fire and other hazards. The thermal fuse can cut off the circuit in time when the temperature reaches a dangerous value to protect electrical equipment and personal safety. Lighting equipment: such as LED lamps, fluorescent lamps, etc. These lamps emit a lot of heat when they are working. If the circuit inside the lamp fails, it may cause the temperature to rise and cause fire and other hazards. The thermal fuse can cut off the circuit in time when the temperature reaches a dangerous value to protect the lamps and personal safety. Industrial equipment: such as motors, transformers, welding machines, motors, etc. These devices generate a lot of heat when they are working. If the circuit inside the device fails, it may cause the temperature to rise and cause fire and other hazards. The thermal fuse can cut off the circuit in time when the temperature reaches a dangerous value to protect the safety of the equipment. Electronic products: such as notebook computers, mobile phones, tablet computers, etc. These electronic products will generate heat during use. If the internal circuit fails, it may cause the temperature to rise and cause fire and other hazards. The thermal fuse can cut off the circuit in time when the temperature reaches a dangerous value to protect the safety of electronic products. In short, the temperature fuse is a very important safety protection element, and its application range is very wide. It can cut off the circuit in time when abnormal high temperature occurs, prevent the occurrence of dangerous accidents such as fire, and ensure the safety of personal and property.

2018-05-07