Patented technology of scroll compressor for air conditioning
1983, Hitachi invented the world's first scroll compressor for air conditioning and obtained a patent;
In 2003, Hitachi introduced a new high back pressure scroll compressor with internal oil separation function for the first time in the industry.
In 2008, Hitachi applied the leading high-capacity scroll compressor to a new generation of commercial air conditioners.
Leading frequency conversion and control technology
19 10, the first motor in Japanese history came from Hitachi.
1964 The frequency converter, motor and control system of the 6000KW frequency conversion locomotive of Shinkansen in Japan all adopt Hitachi products;
1987, Hitachi pioneered the speed sensorless vector control technology of frequency converter, which has a global patent.
8 degrees won the energy-saving award.
On June 30th, 2008, at 65438+, the awarding ceremony of "Energy Saving Award" was held in Tokyo, Japan. * * * Winner 12, Hitachi inverter air conditioner is the only air conditioner brand that won the award. Hitachi Air Conditioning won this honor for 8 times in the history of air conditioning, which shows the scientific and technological strength of the leader of inverter air conditioning.
A sign of a high quality of life
-Hitachi attaches importance to personalized demand With the change of home concept, people put forward higher requirements for high-quality home air-conditioning environment, such as living comfort, noise level, convenience of installation and use, etc. While paying attention to these concerns, the personalized style has also been highlighted-more unique and more suitable air conditioning space schemes have become increasingly prominent-home central air conditioning has become the most outstanding representative!