PV switch time-controlled

Abstract

PV switch, time-controlled, characterized in that all components are installed in a housing that protects against contact with live parts.

Description

1.) The invention relates to a switching and disconnecting device for photovoltaic systems, which can connect or disconnect one or more solar power generators, such as solar modules, with power consumers, such as inverters, battery storage systems, or power stations. The switching function is implemented by a programmable time switch or timer or an electronic timer module and operates fully automatically after commissioning. 2.) Solar modules and solar cells are currently most often mounted on roofs, garages, carports, open spaces, or balcony railings for the purpose of generating electricity. Due to the less-than-ideal orientation of the solar panels, it often happens that some modules only receive direct sunlight in the morning, while others only receive it in the afternoon and are therefore in the shade in the morning. To achieve the highest possible electricity yield, it is therefore advisable to always connect the solar modules that are receiving the most sunlight to the inverter or storage system. 3.) Currently, only a few and inconvenient switches are available, which also have the major disadvantage of having to be operated manually. This makes optimal and automatic operation impossible. 4.) Based on this need and in response to numerous customer requests, we have developed the time-controlled PV switch, which meets all requirements for a convenient and automatic switching function: a. Switching or completely disconnecting all inputs from the outputs, as with a disconnect switch b. Time-controlled switching with automatic sequence after initial setup c. After successful initial setup, the switching operations occur automatically without any further user intervention. d. Additionally, an emergency power supply may be provided by a power storage device installed in or on the housing, thus ensuring the device's functionality even in the event of a power outage. 5.) In addition to the time-controlled switching function, additional devices for protecting the PV system against overvoltage or overcurrent (overload) can be installed in the housing of the switch, since these devices are part of the normal protection of a PV system and thus an additional housing for these devices can be saved. 6.) Versions of the switch with emergency operation on the device in case of a failure of the home Wi-Fi or internet are possible. Likewise, an additional manual power switch (disconnect switch) on the device for emergencies is possible. 7.) The time-controlled PV switch can be designed in versions for small or larger to large PV systems, whereby, depending on the design, a mains power supply may be required for the device to function. 8.) The inventive step here lies in the clever combination of readily available electrical and electronic components into a device with the functions described above.

Claims

[1] Time-controlled PV switch, characterized by that all components are installed in a housing that protects against contact with live parts. [2] Time-controlled PV switch, characterized by that the case can have different dimensions in length, width and height. [3] Time-controlled PV switch, characterized by that it has 2 or more pairs (positive and negative) solar input connectors on the outside of the housing for connecting at least 1 or more solar modules each. [4] Time-controlled PV switch, characterized by that it has one or more pairs (positive and negative) of solar output connectors on the outside of the housing for connecting one power-consuming device each, such as an inverter, storage device or power station. [5] Time-controlled PV switch, characterized by , that at least one pair of input plugs can be connected to one pair of output plugs by switching. [6] Time-controlled PV switch, characterized by , that the automatable switching function allows different individual solar modules and solar module groups to be connected and disconnected from different power-consuming devices as needed and desired. [7] Time-controlled PV switch, characterized by , that after commissioning and initial setup, fully automatic operation without manual intervention is possible. [8] Time-controlled PV switch, characterized by , that it is also possible to disconnect all input plug pairs from all output plug pairs, i.e., to switch them off (disconnect switch function). [9] Time-controlled PV switch, characterized by that the switching can be controlled by a timer with a daily or weekly program. [10] Time-controlled PV switch, characterized by that the time control is made possible by a time switch or a time relay or an electronic timer module. [11] Time-controlled PV switch, characterized bythat no Wi-Fi or smart home system is required for the function. [12] Time-controlled PV switch, characterized by , that in addition to the smart switching function, devices for overvoltage protection, overcurrent protection (overload protection) or a manual emergency switch (disconnect switch) may be installed in the housing. [13] Time-controlled PV switch, characterized by , that depending on the design of the switch, a mains power supply may be required for the device to function. [14] Time-controlled PV switch, characterized by , that depending on the design of the switch, an emergency power supply via energy storage may be installed in or on the device.