Anti-impact heating type main control box

Abstract

The invention discloses an anti-impact heating type main control box, and the box is characterized in that the box comprises an outer box body, an inner box body, a sealing sleeve, a blocking head, aPCB, a compression spring, a long-stroke electromagnet, an extrusion mechanism, a vibration heating mechanism, a buffer mechanism, a first one-way valve and a second one-way valve. When the inner boxbody is subjected to a large impact, the inner box body can generate a small displacement; due to the fact that the resistance at an orifice is bigger, non-Newtonian fluid flows into the buffer mechanism after being pressed, when impact disappears, the compression spring pushes the inner box body to reset, the second conical push head arranged in the buffer mechanism pushes the non-Newtonian fluidto enter the extrusion mechanism through the second one-way valve, the non-Newtonian fluid is slowly supplemented between the outer box body and the inner box body through the vibration heating mechanism, and the dynamic balance is achieved. The box is simple in structure, not only can prevent impact from damaging the PCB, but also can perform heating to realize low-temperature starting of the PCB, and has higher practicability.

Description

technical field [0001] The invention relates to a main control box, in particular to an anti-shock heating type main control box. Background technique [0002] Photovoltaic inverters are an essential part of photovoltaic systems. The main function of the photovoltaic inverter is to convert the direct current generated by the solar panel into the alternating current used by household appliances. Through the full-bridge circuit, the SPWM processor is generally used for modulation, filtering, boosting, etc., to obtain the frequency and rated voltage of the lighting load. The sinusoidal alternating current with matching voltage is used by the end users of the system. In the inverter, all kinds of control PCB boards, drive PCB boards and PCB boards of the weak current part are usually installed in the main control box through bolts. Mainly concentrated in the central and eastern regions, therefore, the complete inverter needs to be transported by kilometers, and the vibration g...

AI Technical Summary

Problems solved by technology

In the inverter, all kinds of control PCB boards, drive PCB boards and PCB boards of the weak current part are usually installed in the main control box through bolts. Mainly concentrated in the central and eastern regions, therefore, the complete inverter needs to be transported by kilometers, and the vibration generated by the long-distance transportation often leads to damage to various expensive PCB boards, which greatly increases the cost of grid connection and prolongs the life of the grid. grid cycle

Images