# US 10,455,746 B2 · Hybrid cooling system having a Freon heat exchanger

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- Number: US 10,455,746 B2
- Document ID: US10455746B2
- Status: Granted
- Kind: B2
- Application number: 15/411,996
- Filed: 2017-01-21
- Published: 2018-06-07
- Granted: 2019-10-22
- Earliest claimed: 2015-02-06
- Assignees: Electronic Power Design, Inc.
- Applicants: Electronic Power Design, Inc.
- Inventors: Brent Baker; Charles Sutherland
- Web page: https://patentgrep.com/patent/US10455746B2

## CPC

- H05K 7/20945: {Thermal management, e.g. inverter temperature control}
- H02M 1/32: Means for protecting converters other than automatic disconnection
- H02S 40/42: Cooling means
- H05K 7/20927: {Liquid coolant without phase change}
- H02M 1/327: {against abnormal temperatures}
- H02S 40/32: comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
- Y02E 10/50: Photovoltaic [PV] energy
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- H02S: GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES (obtaining electrical energy from radioactive sources G21H1/12; light sensitive inorganic semiconductor devices H10F; light sensitive organic semiconductor devices H10K30/00; thermoelectric devices H10N10/00; pyroelectric devices H10N15/00)
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A hybrid cooling system is disclosed including but not limited to an array of solar cells electrically connected to inverters for producing electricity from the sun; a chiller controller processor in data communication with the inverters and a non-transitory computer readable medium; a chiller in data communication with the chiller controller processor and in thermal communication with inverters in a sealed enclosure, wherein the inverters are cooled by an inverter coolant fluid; an array of solar cells attached to the inverters for producing power from the sun; a free cooler in data communication with the chiller controller processor and in thermal communication with the inverter cooling fluid; a Freon loop positioned a water pipe carrying the inverter cooling fluid from the invert to the chiller; and a temperature sensor apparatus in thermal communication with the inverter cooling fluid; a switch for controlling an on off state for the chiller and the cooler, where in the processor for turns the chiller on and the cooler off when the inverter cooling fluid is above a predetermined temperature. A method is disclosed for using the system.

## Claims

### Claim 1

A system comprising:
a drive inside of a drive housing;
a water to air heat exchanger the proved water to the drive;
a chiller heater that receives the water from the water to air heat exchanger through a first conduit;
a second section of conduit that routes the water from the chiller heater to the drive;
a third section of conduit that routes the water from the drive to the water heat exchanger; and
a freon loop that sends hot freon gases from a compressor in the chiller heater through the water from the drive wherein the heat from the freon loop heats the water from the drive.

### Claim 2

A method comprising:
circulating water though a drive inside of a drive housing;
providing water to the drive from a water to air heat exchanger;
receiving the water at a chiller heater from the water to air heat exchanger through a first conduit;
routing the water from the chiller heater to the drive through a second section of conduit that routes;
routing the water from the drive to the water heat exchanger through a third section of conduit; and
sending hot freon gases from a compressor in the chiller heater though a freon loop that runs through the water from the drive wherein the heat from the freon loop heats the water from the drive.