# US 10,481,651 B2 · Integrated PCU and GPU cooling system

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- Number: US 10,481,651 B2
- Document ID: US10481651B2
- Status: Granted
- Kind: B2
- Application number: 15/834,173
- Filed: 2017-12-07
- Published: 2019-06-13
- Granted: 2019-11-19
- Earliest claimed: 2017-12-07
- Assignees: Toyota Motor Engineering & Manufacturing North America, Inc.
- Applicants: Toyota Motor Engineering & Manufacturing North America, Inc.
- Inventors: Ercan M. Dede; Jongwon Shin
- Web page: https://patentgrep.com/patent/US10481651B2

## CPC

- G06F 1/20: Cooling means
- G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C)
- H05K 7/20927: {Liquid coolant without phase change}
- B60Y 2306/05: Cooling
- G06F 2200/201: Cooling arrangements using cooling fluid
- H05K 7/209: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20909 takes precedence)}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

## Abstract

An electronics control system includes a power control unit disposed above a graphics processing unit and thermally connected to a cooling assembly inside. The system also includes a graphics processing unit disposed below the power control unit and thermally connected to the cooling assembly, an auxiliary DC-DC converter disposed below the power control unit and thermally connected to the cooling assembly, and a cooling assembly disposed at a predetermined location and configured to simultaneously transfer heat away from a power control unit, graphics processing unit, and auxiliary DC-DC converter via fluid circulation are presented.

## Claims

### Claim 1

An electronics control system, comprising:
a cooling assembly;
a power controller thermally connected to a first side of the cooling assembly via a thermal interface material;
a processor thermally connected to a second side of the cooling assembly opposite the first side, the processor and the power controller are separated by at least one thermal spacer; and
an auxiliary DC-DC converter thermally connected to each of the cooling assembly and the processor, and the auxiliary DC-DC converter disposed between the cooling assembly and the processor, wherein
the cooling assembly is to simultaneously transfer heat away from the power controller and the processor, and
the auxiliary DC-DC converter and the cooling assembly are separated by the at least one thermal spacer, and the auxiliary DC-DC converter and the processor are separated by at least one heat sink thermally connected to the processor.

### Claim 2 (depends on 1)

The electronics control system of claim 1, further comprising:
a thermal transfer structure connecting the at least one heat sink and the at least one thermal spacer.

### Claim 3 (depends on 2)

The electronics control system of claim 2, wherein the processor is a graphical processor.

### Claim 4 (depends on 1)

The electronics control system of claim 1, wherein the processor is not independently powered.

### Claim 5 (depends on 1)

The electronics control system of claim 1, wherein the auxiliary DC-DC converter powers the processor.

### Claim 6 (depends on 1)

The electronics control system of claim 1, wherein the cooling assembly is to simultaneously cool the power controller, the processor, and the auxiliary DC-DC converter.

### Claim 7 (depends on 1)

The electronics control system of claim 1, wherein the processor is a graphical processor.

### Claim 8 (depends on 1)

The electronics control system of claim 1, further comprising:
a housing that houses the cooling assembly, the power controller, the processor, and the auxiliary DC-DC converter.