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2014年11月19日星期三

The principle and characteristic of frequency conversion air conditioner


 motor Lamination ac motor blender parts 
Specifications
1. Lamination of electric motor 
2. IP54 class F 
3. 100% copper 
4. silicon steel stamping 
5.stunning performance 
In the development of science and technology changes with each passing day today, air conditioner and other high-tech products, also with the acceleration of development ac electric motor trend. Motor variable frequency speed regulation technology development and application of frequency conversion air conditioner development has injected new vitality. In 1964, the German put forward PWM inverter technology such as a. Schonung (Pulse Width Modulation). The core component of the speed regulation control technology is inverter, change the dc into frequency adjustable device for alternating current (ac). As the electronic technology, microelectronics technology, the development of the single Three phase motor chip microcomputer control technology, inverter power, increasingly powerful, cost performance is higher and higher. 


gost motor 7.5kw

Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 

4. low noise and vibtration
Sanyo company from 1974 to start producing frequency conversion air conditioner, the sanyo in Japan in the production of air conditioner, frequency conversion air conditioner production accounts for about 80%. In some developed countries, frequency conversion air conditioning's penetration in the domestic has reached 60%. Frequency conversion air conditioning brands abroad mainly Japanese sanyo, panasonic, Hitachi, daikin, sharp, etc. Domestic frequency conversion air conditioning mainly hisense, haier, midea, gree brand, etc. Because of the complexity of generator set the frequency conversion air conditioner, in learning, frequency conversion air conditioner maintenance knowledge before we start to understand the working principle and characteristics of frequency conversion air conditioner, in a later article focuses on the characteristics of the frequency conversion air conditioner circuit, system and maintenance methods.

2014年10月29日星期三

The matters of attention in the four-way reversing valve application

A) four-way reversing valve of the welding interface should closely, reliable, avoid false welding, and virtual welding etc. Bad phenomenon; B) four-way reversing valve should not appear collisions with other piping, AC synchronous generator components, friction phenomenon, in order to avoid noise and component damage consequences C) shall be fixed tightly four-way reversing valve coil, avoid loose phenomenon, the influence on the reliability of the four-way valve and D) four-way reversing valve in the effective cooling measures must be taken when welding, in case set caused by high temperature in the process of welding deformation of fan motor valve wholesalemotor.blogspot.com core, cause single phase motor price part scrapped; E) used four pillars of four-way reversing valve in the pipeline should be 2 hot cold, such as temperature in little or no difference in temperature, the four-way reversing valve is the high and low pressure has mixes up, four-way reversing valve should be timely replacement.