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Integrated capacitor module of 48V BSG motor inverter

A BSG motor and capacitor module technology, applied in the direction of electrolytic capacitors, capacitors, capacitor terminals, etc., can solve the problems of small capacitance, can not meet the needs of BSG system use, low integration, etc., to reduce heat dissipation, take into account shock resistance and Heat dissipation, the effect of avoiding welding parameters

Active Publication Date: 2021-09-17
WEIFANG PRESTOLITE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an integrated capacitor module of a 48V BSG motor inverter to solve the problem that the existing capacitor modules in the background technology have low integration and small capacitance, which cannot be used in high-power commercial vehicle BSG systems. The problem of using requirements

Method used

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  • Integrated capacitor module of 48V BSG motor inverter
  • Integrated capacitor module of 48V BSG motor inverter
  • Integrated capacitor module of 48V BSG motor inverter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this embodiment, reinforcing ribs are provided on the side of the positioning column 63 to increase the structural strength of the bracket. A glue groove 65 is provided at the contact between the capacitor bracket 6 and the heat dissipation shell 7 to increase the bonding effect with the heat dissipation shell, wherein the larger glue groove 65 is provided with a boss, which can accommodate more sealants and improve the bonding effect In addition, when assembled with the heat dissipation shell, it can also play a positioning and supporting role to improve the shock resistance of the overall structure; the electrolytic capacitor 21 is a cylindrical structure, the positive and negative pins are located on the same side, with large capacitance, high temperature resistance, and stable performance. The capacitor mounting position is provided with a capacitor mounting hole 22 for the electrolytic capacitor pin to pass through. The electrolytic capacitor pin needs to pass th...

Embodiment 2

[0036] In this embodiment, the heat dissipation shell 7 is made of aluminum alloy, which effectively improves the heat dissipation of the capacitor. The blind hole is tangent to the outer surface of the electrolytic capacitor 21 . The output screw is a special-shaped screw to ensure stable electrical output; the connecting hole 31 is fixedly connected to the output screw by gluing and thread locking to ensure structural stability and electrical output.

Embodiment 3

[0038] In this embodiment, the blind hole is consistent with the outline of the cross-section of the electrolytic capacitor 21 , and the blind hole is matched with the outer diameter of the electrolytic capacitor 21 with a clearance. The connecting hole 31 is provided with a rib structure 32, which is beneficial to the connection between the positive and negative busbars and the output screw; the connecting hole 31 is fixedly connected to the output screw by welding and screw locking, and the welding methods include spot welding, soldering or brazing Welding is used to ensure structural stability and electrical output.

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Abstract

The invention discloses an integrated capacitor module of a 48V BSG motor inverter, which comprises a positive busbar and a negative busbar, the positive busbar and the negative busbar are formed by adopting a laminated structure, the positive busbar is arranged above the negative busbar, and an insulating layer is arranged between the positive busbar and the negative busbar; one side of the positive and negative busbars is provided with a connecting arm, the other three sides are provided with more than one terminal arm, the connecting arm and the terminal arms are bent to enable the positive and negative busbars to form a box body, and the inner bottom of the box body is a capacitor mounting surface; the terminal arm is U-shaped, the outer end of the terminal arm is provided with a terminal, the connecting arm is provided with a connecting hole, the connecting hole is provided with an output screw, the outer side of the capacitor mounting surface at one side of the connecting arm of the positive busbar is provided with a yielding hole, the positive busbar and the negative busbar are respectively provided with PCB pins at the yielding holes, and the PCB pins of the negative busbar extend out of the yielding hole. More than one capacitor mounting position for mounting the electrolytic capacitor is uniformly arranged on the capacitor mounting surface. The capacitor module is compact in overall structure, small in size and large in capacitance value, has both shock resistance and heat dissipation performance, and can meet the requirements of commercial vehicle BSG system use and small-size light-weight development.

Description

technical field [0001] The invention belongs to the technical field of motor inverters, and in particular relates to an integrated capacitor module of a 48V BSG motor inverter. Background technique [0002] Energy saving and emission reduction is the common responsibility of all mankind, and it is also the strong desire of most members of society. In the context of the depletion of fossil fuels and the rapid development of automobile technology, the country has increasingly stringent requirements on automobile fuel consumption and emissions. Although BSG technology is not as good as fuel cell and pure electric technology in terms of energy saving and emission reduction effect or advanced level, this technology is gradually being favored by industry experts and may occupy the energy saving and reducing power of traditional power vehicles for a long time in the future. The status of the mainstream technology, because any kind of energy-saving and emission-reduction technology...

Claims

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Application Information

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IPC IPC(8): H01G9/26H01G9/008H01G9/08H01G2/08H01G2/04H02M7/00
CPCH01G9/26H01G9/0003H01G9/08H01G9/008H01G2/04H02M7/003
Inventor 郭慧倪鹏韩振
Owner WEIFANG PRESTOLITE ELECTRIC