From the perspective of elevator development in the past ten years, my country's elevator production has maintained a steady growth, and the growth rate in 2018 is expected to be between 15%-20%. With the continuous development of technology and the continuous implementation of my country’s energy conservation and emission reduction policies, elevator energy conservation and safety have become the direction of elevator development. In order to cooperate with the implementation of the "Thirteenth Five-Year Plan for Special Equipment Safety and Energy Conservation Development", local governments Elevator replacement or renovation plans have been introduced one after another, and the elevators that need to be replaced are replaced with energy-saving elevators through replacement or technical renovation.　　

The safety of the elevator during operation is the most important, and the use of the backup power system is particularly critical. It can ensure that the elevator can operate normally during power outages and emergencies. According to the "Standard for Construction of Power Supply and Distribution Facilities in Residential Areas", multi-storey The high-rise residential electricity consumption belongs to the first-class load area, and the electricity user should provide its own emergency power supply. However, when high-rise buildings were first constructed, the requirements for this area were not strict enough. Many high-rise residential communities rarely have backup power supply or designed dual-circuit power supply, and few are equipped with self-use generators, and there are not many dual-line power supply facilities. "Without a backup power supply, the elevator operation will face greater safety hazards." The industry insiders said that starting the backup power supply in the event of a power outage can restore the elevator to normal operation, and the community without a backup power supply often has elevators in the event of a power outage. Difficulties and other situations. "Whether it is a dual-circuit power supply or emergency measures such as the configuration of a generator, it needs to be built in advance when the developer designs and builds the house. It will be difficult to install it after the house is built and put into use."　　

So how to make the elevator operate safely without backup power supply becomes particularly important. The emergence of elevator emergency power supply can effectively reduce the hidden safety hazards of elevators. When the elevator encounters a soft failure (non-elevator safety circuit, door lock circuit) or power supply system failure (phase loss, power failure, fire alarm) during use, the elevator emergency device will be automatically put into use and help the elevator continue to run and work. The car runs smoothly to the nearest landing and opens the door, so as to ensure that the passengers in the car can get timely and safe automatic rescue protection.　　

Article 21 of the "Xi'an Elevator Safety Management Measures" implemented on March 4, 2017 stipulates: schools, kindergartens, hospitals, subways, underground passages, stations, shopping malls, stadiums, tourist attractions, exhibition venues, parks Passenger elevators newly installed or relocated in public gathering places and residences, where the power supply system is not equipped with dual-circuit power supply, shall be equipped with a backup power supply or an elevator emergency leveling device.　　

Article 11 of the "Elevator Safety Supervision and Administration Measures of Shaanxi Province" implemented on February 1, 2018 stipulates: 　The construction unit shall entrust the architectural design unit to comply with relevant national and provincial regulations and standards, according to the frequency of use of elevators and the place of use. Factors such as designing the number and parameters of elevators, setting up a dual-circuit power supply system, backup power supply or one of emergency leveling devices, equipped with elevator video monitoring facilities, and comprehensively considering functions such as first aid and barrier-free access.　　

Article 21 stipulates: Passenger elevators and residential elevators in use in public gathering places such as airports, stations, passenger terminals, shopping malls, stadiums, convention and exhibition venues, parks, theaters, schools, kindergartens, hospitals, underground passages, etc. According to the actual situation, the elevator shall be equipped with dual-circuit power supply or backup power supply or emergency leveling device transformation, and elevator video monitoring facilities shall be installed.　　

It can be seen that local governments have begun to increase safety regulations during the use of elevators, and the installation and use of emergency power supplies for elevators has become one of the standard configurations.　

The PFU elevator emergency power supply with power generation function is a new generation of high-tech products developed by Shenzhen Hexing Canada Energy Technology Co., Ltd. This product combines elevator energy-saving feedback and power failure emergency power supply into an elevator emergency power supply with power generation function. The standards used in China and Europe can be adapted to all types of elevators at the same time. PFU uses patented technology to ensure that the elevator stops near the leveling floor or returns to the leveling floor of the first floor and opens the door when the grid power supply is interrupted; when the grid power supply is normal, it is an energy regeneration feedback device that can convert more than 95% of the mechanical energy into renewable electrical energy , Generating 10-20 degrees per day. At the same time, the special battery management of PFU makes the battery life more than three times that of similar products, so that the economic benefits generated by the equipment during the life of the equipment far exceed the investment cost.