Power electronics system
First Claim
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1. A power electronics assembly comprising:
- a case; and
an array of power stages disposed within the case in a stack and each including a transistor-based switching arrangement configured to change direct current from a traction battery to alternating current for an electric machine and bonded together via a resin to form a monolithic power module adhered to a case wall of the case, wherein the monolithic power module defines internal coolant passages including chambers interleaved with the power stages and a manifold in fluid communication with the chambers and disposed outside of the stack such that a portion of the resin separates the stack and the manifold.
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Abstract
A power electronics assembly includes a case and an array of power stages disposed within the case. Each of the power stages includes a transistor-based switching arrangement configured to change direct current from a traction battery to alternating current for an electric machine. The power stages are bonded together via a resin to form a monolithic power module adhered to a wall of the case. This disclosure also discloses methods for forming power electronic assemblies.
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Citations
19 Claims
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1. A power electronics assembly comprising:
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a case; and an array of power stages disposed within the case in a stack and each including a transistor-based switching arrangement configured to change direct current from a traction battery to alternating current for an electric machine and bonded together via a resin to form a monolithic power module adhered to a case wall of the case, wherein the monolithic power module defines internal coolant passages including chambers interleaved with the power stages and a manifold in fluid communication with the chambers and disposed outside of the stack such that a portion of the resin separates the stack and the manifold. - View Dependent Claims (2, 3, 4, 5)
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6. A power electronics assembly comprising:
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a case; an array of power stages disposed within the case and each including a transistor-based switching arrangement configured to change direct current from a traction battery to alternating current for an electric machine; and a manifold including a housing disposed against a side of the array and defining at least one fluid passage, wherein each of the power stages are bonded together and bonded to the manifold via a resin forming a monolithic power module adhered to a wall of the case, wherein the monolithic power module defines coolant chambers interleaved with the power stages and in fluid communication with the manifold. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An apparatus comprising:
a power module assembly including; a stack of power stages and dissolvable chamber cores interleaved with the power stages to form placeholders that create internal cavities once dissolved, and a dissolvable manifold core disposed against a side of the stack, extending along a length of the stack to be in contact with the chamber cores, and forming a placeholder that creates a manifold in fluid communication with the internal cavities once dissolved. - View Dependent Claims (15, 16, 17, 18, 19)
Specification