Protection mechanism for three-level inverter
A technology for three-level inverters and protection mechanisms, applied in the direction of converting irreversible DC power input into AC power output, transforming equipment structural parts, electrical components, etc. Avoid friction, wear, corrosion and other problems, achieve the effect of accurate fence position, improve service life and ensure flexibility
Pending Publication Date: 2020-07-28
MAANSHAN TECHN COLLEGE
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that the existing protection mechanism does not have the functions of liquid isolation, dust isolation and anti-blocking for the three-level inverter, which causes the three-level inverter to be easily rubbed by external devices during operation. Or dust and liquid corrosion, resulting in damage to the three-level inverter, which seriously affects the stability and service life of the three-level inverter during operation; the protection mechanism has poor sealing performance on the periphery of the three-level inverter; The enclosure protection position of the level inverter is not accurate and suitable; and the protection mechanism can only protect the three-level inverter with the same thickness and area, and the protection mechanism can work in a small range; and When the protection mechanism is used, it is easy to cause scratches and wear to the three-level inverter, and a protection mechanism for the three-level inverter is proposed
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[0033] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0034] see Figure 1-7As shown, a protection mechanism for a three-level inverter includes two sets of plates 1 arranged in parallel, a transfer frame 5 and a buckle mechanism 18, and a transfer frame is arranged above the two sets of plates 1. Frame 5, and a hollow movable groove 2 is arranged above the middle part of the cover plate 1, and several protruding teeth 3 are arranged on the inner wall of one side of the movable groove 2, and a first motor 6 is arranged on the bottom of both ends of the transfer frame 5, and th...
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The invention discloses a protection mechanism for a three-level inverter. The protection mechanism comprises two sleeve plates which are arranged in parallel, a moving connection frame, and a buckling and blocking mechanism, wherein the moving connection frame is disposed above a position between the two sleeve plates, and a hollow movable groove is disposed above middle parts of the sleeve plates. The protection mechanism is advantaged in that the bottom of the buckling and blocking mechanism is buckled to an edge of a three-level inverter, the enclosure of a three-level inverter is protected, the three-level inverter is prevented from being scratched or corroded, interfered and damaged by external devices or dust liquid, working stability of the three-level inverter is improved, the service life of the three-level inverter is prolonged, the bottom of the buckling and blocking mechanism is connected with the edge of the three-level inverter through a first rubber pad and a second rubber pad, and the periphery of the three-level inverter is well sealed; in the process that the protection mechanism carries out fence protection of the three-level inverter, a fan works to carry out heat dissipation of the three-level inverter, and working stability of the three-level inverter is improved.
Description
technical field [0001] The invention relates to a protection mechanism, in particular to a protection mechanism for a three-level inverter, and belongs to the technical field of application of the protection mechanism of the three-level inverter. Background technique [0002] The three-level inverter is a pulse width modulation circuit based on three fixed levels, which is frequently used in the field of power electronics. The three-level inverter has large output capacity, high output voltage, and low current harmonic content. advantage. [0003] The three-level inverter protection mechanism is a component used to prevent the three-level inverter from being damaged by external interference when it is working, and is often used in conjunction with the three-level inverter. [0004] There are still many defects in the existing protection mechanism of the three-level inverter. When the inverter is working, it is easy to be rubbed by external components or corroded by dust an...
Claims
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IPC IPC(8): H02M7/42H02M7/00H05K5/06
CPCH02M7/42H02M7/003H05K5/061
Inventor 夏兴国袁传信关越缸明义宁平华童鑫
Owner MAANSHAN TECHN COLLEGE