Mitsubishi: It is divided into Mitsubishi Heavy Industries and mitsubishi electric. In fact, the main body of Mitsubishi Group is Mitsubishi Heavy Industries, and mitsubishi electric evolved from a branch of an electronics research institute under the Nagasaki Shipyard of Mitsubishi Group. However, because of Mitsubishi's trademark authorization, it has been expanding its market as Mitsubishi for decades, which is a niche, which Mitsubishi Group did not expect at that time. However, the trademark authorization of this company has not been revoked, because only home appliances have little influence on the entire Mitsubishi Group.
Mitsubishi Heavy Industries is the real product of Mitsubishi Group. In the 1990s, users of Mitsubishi Heavy Industries imported slitting machines had the most say in their quality reputation. In recent years, Mitsubishi Heavy Industries' central air-conditioning market has not started because of Haier's market decline. However, after 2009, Mitsubishi Heavy Industries has independently produced its own products and operated its own market, which has little to do with Haier. Moreover, the product production standards are completely in accordance with Japanese JIS industrial standards, and the global products are synchronized, which greatly improves the product quality, far from being comparable to Mitsubishi Heavy Industries Haier. (So friends who want to buy Mitsubishi air conditioners must distinguish between Mitsubishi Heavy Industries, mitsubishi electric and Mitsubishi Heavy Industries Haier. )
Daikin: In China, it is advertised as a sole proprietorship (in fact, it is a joint venture with Shanghai Sewing Machine Factory). It is the only air-conditioning company in the world that integrates air-conditioning equipment production and refrigerant production, and only makes air-conditioning related products. Before 20 12, although Daikin's domestic standard was produced according to China GB, the actual materials and workmanship were really quite good.
However, after 20 12, Daikin became more and more lax in the promotion of new products in order to seize the Gree market in China, modify equipment, reduce production costs, and reduce quality and reputation. For example, Daikin's multi-functional VRV system, which is known as super energy-saving Daikin's high-end product integrating central air conditioning, heating and domestic hot water, was pushed by manufacturers after listing, hoping to change the market structure of central air conditioning. It has been reported all over the country that this product consumes extremely high energy. In Huanhuaxi, Chengdu, a user with 260 square meters of air-conditioning area has a 22-day electricity bill as high as 7,000 yuan. The manufacturer can't solve it. Finally, the customer must install a separate heating boiler and replace the water tank to supply domestic hot water ... after that, the manufacturer will not force the promotion of this product.
Toshiba: There is a saying in the Japanese air-conditioning industry that "technology depends on Mitsubishi, marketing depends on Daikin, and line control depends on Toshiba". The quality should be good.
Hitachi: The only thing that can be realized is the invention of scroll compressor, but the most advanced compressor at present is the 3D scroll compressor developed by Mitsubishi Heavy Industries. Hitachi's quality is average, but the price is really cheap, which is similar to that of domestic Gree.
General Fujitsu, in the China market, has not done it, and the situation is unknown.