First, double-rotor compressor
Double-rotor compressor was introduced in p>1988, and frequency conversion double-rotor compressor was introduced in 1993. The double-rotor compressor has short defrosting time and long defrosting interval, and the patented oil return technology is used. Toshiba defrosting starts 3 minutes later, and the defrosting interval is 55 minutes, which has excellent heating effect. In the weather of MINUS 1 degrees, the temperature of air conditioning heating room can reach 2 degrees, Daikin starts 15 minutes later, and the defrosting interval is 25 minutes. The double-rotor oil return and oil spill are small, and the system pipe length can be longer. There is a hidden oil leakage between the fixed scroll and the moving scroll of the scroll compressor, which is easy to burn the compressor. Toshiba's double-rotor inverter compressor has been put into use in Shanghai Metro in 24, with 2, units. Up to now, the compressor has maintained zero failure rate.
Ⅱ. R41 environmental protection refrigerant
In p>1998, R41 new environmental protection refrigerant inverter air conditioner was introduced (R41 refrigerant was developed and marketed by Toshiba, and now inverter air conditioners are all in use). Double-rotor compressor cooperated with R41 refrigerant as the best partner, and the performance was improved by 47%. Daikin, Mitsubishi and other inverter scroll compressors used R41 refrigerant, and the performance was only improved by 1%.
third, full frequency conversion
Toshiba introduced commercial and household frequency conversion air conditioners in 198 and 1981 respectively, becoming the second largest manufacturer of frequency converters in the world and the originator of frequency conversion air conditioners. All compressors and fans of a single machine adopt frequency conversion, and it is the first enterprise in the industry to adopt full frequency conversion design. In 28, Japan Electric Association awarded the "First Achievement Award of Frequency Conversion Technology". Toshiba's frequency conversion accuracy is up to 12, .1HZ.
The use of leading central air conditioning core technology makes the product lighter, has better heating effect, saves electricity and energy, and runs more stably.