Network bridge structure used between frequency converter and controller

The utility model discloses a network bridge structure used between a frequency converter and a controller. The network bridge structure comprises a first data transmission unit, a second data transmission unit, a signal transmission unit and a central processing module. Wherein the signal transmission unit is used for being connected with external equipment and transmitting third data conforming to a set communication protocol, and the third data comprises operation parameters of the frequency converter and adjustment parameters of the frequency converter. The network bridge structure provided by the embodiment of the utility model not only can support data transmission between the frequency converter and the controller, but also can support data transmission between the external equipment and the controller or the frequency converter, and is beneficial for realizing the Internet of Things of the variable frequency motor comprising the frequency converter, the controller and the network bridge structure. 本实用