Variable-frequency power supply
A variable frequency power supply and capacitor technology, applied in the direction of electrical components, power electronics modification, AC motor control, etc., can solve the problems of poor heat dissipation of the module, unstable device operation, high operating temperature of the power supply, etc., to achieve heat dissipation, The module is convenient and the effect of reducing electromagnetic interference
Pending Publication Date: 2020-12-18
上海瑞衡机电有限公司
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a variable frequency power supply, which is used to solve the problem of poor module heat dissipation, high operating temperature of the power supply, and strong electrical signal interference control signal in the existing variable frequency power supply in the prior art. , the device is prone to unstable work and uneven center of gravity, which makes it difficult to move the device
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020]The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
[0021]SeeFigure 1 to Figure 5 . It should be noted that the structure, ratio, size, etc. shown in the accompanying drawings in this specification are only used to match the content disclosed in the specification for the understanding and reading of those familiar with this technology, and are not intended to limit the implementation of the present invention Limited conditions, so it has no technical significance. Any structural modification, proportional relationship change or size adjustment should still fall under the present invention without affecting the effects and objectives that can be achieved by the present invention. The disclosed technical content must be within the scope of coverage. At the same time, the terms such as "upper", "...
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
Login to view more Abstract
The invention provides a variable-frequency power supply, and belongs to the technical field of power distribution equipment. The power supply comprises a cabinet body, an alternating current contactor A, an alternating current contactor B, a direct current filter inductor and a three-phase reactor are sequentially arranged on a left half portion in the cabinet body, an output filter capacitor isarranged on the right side of the alternating current contactor A, a three-phase filter inductor is arranged on the right side of the output filter capacitor, and an output transformer is arranged onone side of the three-phase filter inductor; a driving circuit mounting plate is arranged on one side of an output transformer, an IGBT radiator assembling mechanism is connected below the driving circuit mounting plate, and a circuit supporting plate assembling mechanism is arranged above a left side of the IGBT radiator assembling mechanism. An IGBT radiator layout is beneficial to heat dissipation, installation and module replacement are convenient, and the three-phase filter inductor is placed in the middle. A connection cable from the module output to the inductor is the shortest, an electromagnetic interference can be reduced, the power module and the control circuit are arranged in different areas, and the interference of a strong current on weak current signals is effectively reduced.
Description
Technical field[0001]The invention relates to a variable frequency power supply, belonging to the technical field of power distribution equipment.Background technique[0002]The variable frequency power supply transforms the alternating current in the mains power through AC→DC→AC, and the output is a pure sine wave. The output frequency and voltage are adjustable within a certain range. It is different from the frequency conversion speed controller used for motor speed control, and it is also different from the ordinary AC stabilized power supply. The ideal AC power supply is characterized by stable frequency, stable voltage, zero internal resistance, and pure sine wave (no distortion) in the voltage waveform. The variable frequency power supply is very close to the ideal AC power supply. Therefore, the advanced developed countries increasingly use the variable frequency power supply as the standard power supply in order to provide the best power supply environment for the electrical ...
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
Login to view more Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02M5/458H05K7/20
CPCH02M5/458H02P27/06H05K7/20909
Inventor 江炎聪邓甲礼
Owner 上海瑞衡机电有限公司
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap