Inverter DC bus bar assembly
First Claim
1. A DC bus bar sub-assembly, comprising:
- a negative DC bus bar having a negative input tab and a negative output tab;
a positive DC bus bar, which is nested within the negative DC bus bar, the positive and negative bus bars being spaced apart from one another to form a space therebetween, the positive bus bar comprising a positive input tab and a positive output tab;
wherein the positive and negative input tabs are disposed in a spaced apart and side-by-side relationship to one another, and further wherein the positive and negative output tabs are disposed in a spaced apart and side-by-side relationship to one another;
wherein the negative DC bus bar comprises a negative bar body having a first section and a second section that are disposed orthogonally to one another;
wherein the positive DC bus bar comprises a positive bar body having a first section and a second section that are disposed orthogonally to one another;
wherein the positive output tab and the negative output tab are offset from the second sections of their respective bar bodies; and
wherein the positive and negative output tabs are substantially L-shaped and comprise an aperture for receiving a connection for a power cable.
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Accused Products
Abstract
Power inverter assemblies are provided herein for use with motor vehicles. An inverter assembly may have a symmetrical structure configured to convert DC input power to AC output power. The inverter assembly may include a housing enclosing a symmetrical DC input portion, a symmetrical AC output portion, a DC link capacitor, and a gate drive portion having a pair of power modules. The symmetrical DC input portion can include a DC input bus bar sub-assembly to which the DC link capacitor is coupled, and a second DC bus bar sub-assembly that may electrically couple the DC link capacitor with the power modules. The symmetrical AC output portion may include a three phase output AC bus bar sub-assembly to which the power modules can be electrically coupled. A cooling sub-assembly may be provided for cooling the power modules with fluid transfer using a coolant.
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Citations
13 Claims
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1. A DC bus bar sub-assembly, comprising:
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a negative DC bus bar having a negative input tab and a negative output tab; a positive DC bus bar, which is nested within the negative DC bus bar, the positive and negative bus bars being spaced apart from one another to form a space therebetween, the positive bus bar comprising a positive input tab and a positive output tab; wherein the positive and negative input tabs are disposed in a spaced apart and side-by-side relationship to one another, and further wherein the positive and negative output tabs are disposed in a spaced apart and side-by-side relationship to one another; wherein the negative DC bus bar comprises a negative bar body having a first section and a second section that are disposed orthogonally to one another; wherein the positive DC bus bar comprises a positive bar body having a first section and a second section that are disposed orthogonally to one another; wherein the positive output tab and the negative output tab are offset from the second sections of their respective bar bodies; and wherein the positive and negative output tabs are substantially L-shaped and comprise an aperture for receiving a connection for a power cable. - View Dependent Claims (2, 3, 4)
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5. A DC bus bar sub-assembly, comprising:
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a pair of bus bars that each comprise; an input tab; an output tab; and a bar body, the input tab extending in alignment with a first section of the bar body, the output tab extending normally to a second section of the bar body; and an insulating housing that encloses the first section of both of the pair of bus bars; wherein the input tabs of the pair of bus bars are disposed above the output tabs of the pair of bus bars. - View Dependent Claims (6, 7)
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8. A DC bus bar sub-assembly for an inverter assembly, the DC bus bar sub-assembly comprising:
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a pair of bus bars that each comprise; an input tab; an output tab; and a bar body, the input tab extending in alignment with a first section of the bar body, the output tab extending normally to a second section of the bar body; wherein the first section and the second section of the bar body are disposed at substantially a right angle relative to one another. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification