# US 7,610,771 B2 · Refrigerating apparatus and refrigerator

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- Number: US 7,610,771 B2
- Document ID: US7610771B2
- Status: Granted
- Kind: B2
- Application number: 11/035,293
- Filed: 2005-01-13
- Published: 2005-08-04
- Granted: 2009-11-03
- Earliest claimed: 2004-01-15
- Assignees: Danfoss Compressors GmbH
- Inventors: Carsten Rothmann; Ole Schebel Bachmann
- Web page: https://patentgrep.com/patent/US7610771B2

## CPC

- F25D 29/005: {Mounting of control devices}
- F25D 19/00: Arrangement or mounting of refrigeration units with respect to devices {or objects to be refrigerated, e.g. infrared detectors}
- F25D 23/006: {for mounting refrigerating machinery components}
- F25D 2400/36: Visual displays
- F25D 2400/40: Refrigerating devices characterised by electrical wiring
- H01F 38/50: {Transformers for galvanic isolation}
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

A refrigerating apparatus for a refrigerator has an electrical voltage supply and an electrical interface for connection with components of the refrigerator with the interface having a galvanic isolation between an input arrangement connected with the refrigerating apparatus and an output arrangement connected with at least one component of the refrigerator.

## Claims

### Claim 1

A refrigerating apparatus for a refrigerator comprising:
an electrical voltage supply input arrangement; and
an electrical interface for connection of refrigerating apparatus with components of the refrigerator,
wherein the interface has a galvanic isolation between the input arrangement and an output arrangement connected with at least one of said components of the refrigerator, the output arrangement, including an electrical connector, configured to be
mechanically releasably connected to said at least one component of the refrigerator.

### Claim 2 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the interface includes a transformer.

### Claim 3 (depends on 2)

The refrigerating apparatus according to claim 2, wherein the transformer provides a voltage at the output arrangement which at maximum corresponds to a protective low voltage.

### Claim 4 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the interface has an optical coupler.

### Claim 5 (depends on 1)

The refrigerating apparatus according to claim 1, wherein it is constructed as a functional unit which unit includes a compressor, a condenser and an expansion valve.

### Claim 6 (depends on 5)

The refrigerating apparatus according to claim 5, wherein it includes an electronic control unit.

### Claim 7 (depends on 5)

The refrigerating apparatus according to claim 5, wherein it includes an evaporator.

### Claim 8 (depends on 5)

The cooling apparatus according to claim 5, wherein it includes a heating element.

### Claim 9 (depends on 1)

The cooling apparatus according to claim 1, wherein it includes a gas sensor.

### Claim 10 (depends on 1)

The refrigerating apparatus according claim 1, wherein the output arrangement of the interface has a part of a plug connector.

### Claim 11 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the output arrangement of the interface has power transmitting terminals and/or signal transmitting terminals.

### Claim 12 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the output arrangement has a light emitter.

### Claim 13 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the refrigerating apparatus is detachable.

### Claim 14 (depends on 1)

The refrigerating apparatus according to claim 1, wherein the refrigerating apparatus is housed in a separate housing from the refrigerating section.