Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Three-phase inverter conversion device based on LCL filter

A technology of three-phase inverter and conversion device, which is applied in the direction of emergency protection circuit device, protection for under-load or no-load response, electrical components, etc. It can solve the problem of damage to electrical equipment, automatically cut off the circuit, and reduce the inverter Practicality and other issues to achieve the effect of improving safety, improving reliability and preventing fire

Inactive Publication Date: 2022-04-08
广州索尔森技术有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned existing inverters based on LCL filters, it is cumbersome to operate during use, which reduces the practicability of the inverters. At the same time, the existing inverters cannot automatically measure the inverter when it is used for power consumption equipment. The size of the final current, nor can it automatically cut off the circuit when the inverter current is small to avoid damage to the electrical equipment in the low-power state for a long time. At the same time, the existing inverter does not have the function of automatically preventing overheating and fire protection. To achieve the above goals of convenient operation, automatic measurement of inverter current, low current automatic cut-off, and overheat protection, the present invention achieves the following technical solutions: a three-phase inverter conversion device based on an LCL filter, including a casing, The inside of the housing is movably connected with a current conversion mechanism, and the current conversion mechanism includes a switching component for generating alternating current and a protection component for automatic disconnection of current monitoring, and the switching component is movably connected inside the housing, so The protection components mentioned above are movably connected to the outside of the shell

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-phase inverter conversion device based on LCL filter
  • Three-phase inverter conversion device based on LCL filter
  • Three-phase inverter conversion device based on LCL filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see figure 1 - image 3 , a three-phase inverter conversion device based on an LCL filter, including a casing 1, the inside of the casing 1 is movably connected with a current conversion mechanism 2, and the current conversion mechanism 2 includes a switching assembly 21 for generating alternating current, for current The automatic disconnection protection component 22 is monitored, the switching component 21 is movably connected inside the casing 1 , and the protection component 22 is movably connected outside the casing 1 .

[0023] The switching assembly 21 includes an insertion board 211, an adapter board 212, an input terminal 213, a logic circuit 214, and an output end 215. The outside of the housing 1 is fixedly connected with the insertion board 211, and the inside of the housing 1 is fixedly connected with an engagement board 212. An input terminal 213 is fixedly connected to the outside, a logic circuit 214 is fixedly connected to the outside of the connectin...

Embodiment 2

[0027] see figure 1 , Figure 4 , a three-phase inverter conversion device based on an LCL filter, including a casing 1, the inside of the casing 1 is movably connected with a current conversion mechanism 2, and the current conversion mechanism 2 includes a switching assembly 21 for generating alternating current, for current The automatic disconnection protection component 22 is monitored, the switching component 21 is movably connected inside the casing 1 , and the protection component 22 is movably connected outside the casing 1 .

[0028] The inside of the casing 1 is movably connected with a safety mechanism 3 to prevent the casing 1 from overheating and igniting. The safety mechanism 3 includes a tank body 301, an electromagnetic pump 302, an accumulation plate 303, a nozzle 304, a memory metal strip 305, and a power contact 306. The tank body 301 is fixedly connected, the electromagnetic pump 302 is fixedly connected to the outside of the tank body 301, the accumulatio...

Embodiment 3

[0031] see figure 1 - Figure 4, a three-phase inverter conversion device based on an LCL filter, including a casing 1, the inside of the casing 1 is movably connected with a current conversion mechanism 2, and the current conversion mechanism 2 includes a switching assembly 21 for generating alternating current, for current The automatic disconnection protection component 22 is monitored, the switching component 21 is movably connected inside the casing 1 , and the protection component 22 is movably connected outside the casing 1 .

[0032] The switching assembly 21 includes an insertion board 211, an adapter board 212, an input terminal 213, a logic circuit 214, and an output end 215. The outside of the housing 1 is fixedly connected with the insertion board 211, and the inside of the housing 1 is fixedly connected with an engagement board 212. An input terminal 213 is fixedly connected to the outside, a logic circuit 214 is fixedly connected to the outside of the connectin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A three-phase inverter conversion device based on an LCL filter provided by the present invention comprises a shell, the interior of the shell is movably connected with a current conversion mechanism, the current conversion mechanism comprises a switching assembly used for generating alternating current and a protection assembly used for monitoring current magnitude and automatically disconnecting, the switching assembly is movably connected to the interior of the shell, and the protection assembly is movably connected to the interior of the shell. The protection assembly is movably connected to the exterior of the shell; current inversion is efficiently and conveniently achieved by connecting a logic circuit into the input end, the inverted current is conveyed to the electric piece through the output end, then the inverter converts the current more conveniently, meanwhile, the coil is electrically connected with the output end, the size of the inverted current is measured in real time, the coil extends to drive the sliding plate to slide, and the current is accurately and accurately converted. And the sliding plate slides to separate the external plug from the electric sheet through the jacking block, so that the electric equipment can automatically cut off a circuit under low current, and the reliability of the inverter is improved.

Description

technical field [0001] The invention relates to the technical field of inverters, in particular to a three-phase inverter conversion device based on an LCL filter. Background technique [0002] The inverter is a converter that converts DC power into constant-frequency constant-voltage or frequency-modulated voltage-regulated alternating current, generally 220V, 50Hz sine wave. It consists of an inverter bridge, control logic and filter circuit. Widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, existing inverters based on LCL filters It is cumbersome to operate the inverter during use, which reduces the practicability of the inverter. At the same time, the existing inverter cannot automatically measure the magnitude of the inverter current when the inverter current is relatively high. Automatically cut ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/12H02H3/12A62C35/02A62C35/62
Inventor 梁勇
Owner 广州索尔森技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products