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

Composite busbar and three-phase inverter circuit

A technology of compound busbar and busbar

Active Publication Date: 2014-07-09
CRRC YONGJI ELECTRIC CO LTD
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a composite busbar and a three-phase inverter circuit, which is used to solve the problem of large stray inductance of the three-phase inverter circuit in the prior art, realize the reduction of the stray inductance of the circuit, and reduce the generation of peak voltage

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
  • Composite busbar and three-phase inverter circuit
  • Composite busbar and three-phase inverter circuit
  • Composite busbar and three-phase inverter circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] figure 1 It is the front view of the composite busbar provided by Embodiment 1 of the present invention, figure 2 It is the left view of the composite busbar provided by Embodiment 1 of the present invention, image 3 It is a top view of the composite busbar provided by Embodiment 1 of the present invention. The specific structure of the composite busbar is as follows, including busbar 1 , terminal 2 and connection part 3 .

[0023] The shape of the busbars 1 is flat, at least two of the busbars 1 are stacked together, and the adjacent busbars 1 are filled with high-dielectric-strength materials, so that the gap between the adjacent busbars 1 Keep it insulated. Terminals 2 are arranged on the busbar 1 for connecting circuit devices. The connection part 3 is arranged on the bus bar 1 and is used for connecting a DC input terminal or a circuit device.

[0024] Wherein, the busbar 1 is set in a flat shape, the width of the section is increased, and the thickness of t...

Embodiment 2

[0031] Figure 4 It is a three-dimensional schematic diagram of the composite busbar provided in Embodiment 2 of the present invention, Figure 5 It is a three-dimensional schematic diagram of the composite busbar provided in Embodiment 2 of the present invention, Figure 6 for Figure 4 A schematic diagram of part A, Figure 7 for Figure 4 Part B schematic, Figure 8 The schematic diagram of the three-phase inverter circuit provided by Embodiment 2 of the present invention. This embodiment further optimizes the technical solution of applying the composite busbar to the three-phase inverter circuit on the basis of the above embodiments. The three-phase inverter circuit includes three sets of power devices, energy storage devices, discharge resistors and composite busbars.

[0032] Wherein, the composite busbar is the composite busbar mentioned in the above-mentioned embodiment, and the composite busbar includes three busbars stacked together, and the first busbar 11 and...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a composite busbar and a three-phase inverter circuit. The composite busbar comprises busbar units, terminals and connection portions. The busbar units are flat, at least two busbar units are overlapped, and the position between the adjacent busbar units is filled with high-insulating-strength materials, so that the adjacent busbar units are insulated. The terminals are arranged on the busbar units and used for being connected with circuit devices, and the connection portions are arranged on the busbar units and used for being connected with direct-current input ends or the circuit devices. The composite busbar is used for solving the problem that in the prior art, a circuit is large in stray inductance, reduces the stray inductance of the circuit, and reduces peak voltage.

Description

technical field [0001] The invention relates to electrical technology, in particular to a composite busbar and a three-phase inverter circuit. Background technique [0002] The operating system of an electric locomotive mainly includes traction system and auxiliary system, among which the traction auxiliary converter is an important device to ensure the electric locomotive to achieve electric traction, braking and auxiliary supply, and determines the stability of the high-speed operation of the electric locomotive. [0003] At present, the electrical connection of the key components in the three-phase inverter circuit of the traction auxiliary converter, such as the insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT), the supporting capacitor and the absorbing capacitor, is usually connected by cables or copper bars. connect. In the working state of the traction auxiliary converter, due to the inductance of the IGBT itself and the parasitic inductanc...

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
IPC IPC(8): H01R25/16H01R31/06H02M7/42
CPCH01R25/16H05K7/14329
Inventor 牛勇张丹朱杭杭赵一洁唐子辉
Owner CRRC YONGJI ELECTRIC CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com