- Relay Manufacturing factory
About us
Technological innovation
Relying on 20 years of technical precipitation, break through the high-voltage (1500VDC), small volume, large load and other technical bottlenecks, independent research and development of “new energy special ceramic high-voltage relay” and “charging stack special magnetic protection relay”, the current-carrying capacity of more than 30%, filling the industry Blank.
Talent training
Mingni Tech and Hunan University of Science and Technology to build a joint internship and employment integration base, focusing on new energy technology research and the transformation of production, learning and research, directed to cultivate high-quality engineering talent, and to promote industry innovation and synergistic development of schools and enterprises.
Relay Manufacturing factoryTaorelay
Taorelay is a Relay Manufacturing factory that is the relay brand of Shenzhen Mingni Technology Co., Ltd.(Mingni Tech), Mingni Tech was founded in 2015, is a national high-tech enterprises, specializing in new small and medium-sized enterprises, ploughing into the field of new energy relays for 10 years, focusing on the research and development of charging pile and energy storage relays, production and global applications.
We are committed to providing customers around the world with highly reliable, customized and high-performance new energy relay solutions.
Our Advantages
Relay manufacturing experience
Customers served
Annual output of relays
Patents for inventions









Patents and Certificates
Mingni Tech is headquartered in Shenzhen, covers an area of 1200 square meters, has its own “Mingni laboratory” and fully automated production line, through the ISO9001 and ISO14001 international quality system certification, applied for a total of 5 core invention patents, product coverage of charging piles, energy storage, switching and other scenarios, is committed to providing customers around the world with highly reliable, customized, high-performance new energy relays.




Applications of Relays

EV Charger
Relays are used in key links such as main circuit on-off control, safe power-off, feedback detection, etc. in charging stations. Taorelay's high-voltage relays have high breaking capacity and high insulation performance, and are essential core components of new energy charging systems.

photovoltaic energy storage
Our relays are widely used in the field of photovoltaic energy storage, mainly for inverters, energy storage packages, battery management systems, DC distribution boxes, etc

smart home appliance
Relays are widely used in smart home appliances. As a bridge between control circuits and load circuits, they play a key role in automatic control, safe isolation, and remote operation.

smart grid
As the power grid gradually develops towards digitization, automation, and distribution, the functions of relays are also constantly expanding, extending from traditional power protection to intelligent control fields such as communication, automatic reclosing, and load management.