# US 12,601,501 B2 · Cooking appliance

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- Number: US 12,601,501 B2
- Document ID: US12601501B2
- Status: Granted
- Kind: B2
- Application number: 17/943,540
- Filed: 2022-09-13
- Published: 2023-05-04
- Granted: 2026-04-14
- Earliest claimed: 2021-10-28
- Assignees: LG Electronics Inc.
- Applicants: LG Electronics Inc.
- Inventors: Dongmin Lee; Jaewon Byun; Ugjin Kim
- Web page: https://patentgrep.com/patent/US12601501B2

## CPC

- F24C 15/006: {Arrangements for circulation of cooling air}
- F24C 15/02: Doors specially adapted for stoves or ranges
- F24C 7/085: {on baking ovens}
- H04N 7/183: {for receiving images from a single remote source}
- H05B 6/6414: {Aspects relating to the door of the microwave heating apparatus}
- H05B 6/642: {Cooling of the microwave components and related air circulation systems (H05B6/6473 takes precedence)}
- H05B 6/6435: {Aspects relating to the user interface of the microwave heating apparatus}
- H05B 6/76: Prevention of microwave leakage, e.g. door sealings
- H05K 7/20145: {Means for directing air flow, e.g. ducts, deflectors, plenum or guides}
- H05K 7/20972: {Forced ventilation, e.g. on heat dissipaters coupled to components}
- H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
- H04N 23/90: Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
- F24C: DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B); DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A cooking appliance is provided that may include a main body having a cavity, and a door that opens and closes the cavity. The door may include a display module including a display unit disposed in front of the door, and a cooling flow path unit disposed behind the display module, and having a flow path formed therein through which air for cooling flows. The cooling flow path unit may include an air guide configured to guide a flow of the air introduced into the door, and a blower mounted on the air guide. The air guide may include at least one inlet disposed on an upper portion, and through which external air is introduced, and a mounting hole formed under the inlet, and in which the blower mounted.

## Claims

### Claim 1

A cooking appliance comprising a main body in which a cavity is formed, and a door that opens and closes the cavity, wherein the door includes:
a display module; and
a cooling flow path unit disposed behind the display module, and having a flow path formed therein through which air for cooling flows, wherein the display module includes:
a display unit disposed in front of the door and configured to display videos or images; and
an outer panel disposed behind the display unit and on which the display unit is mounted, wherein the cooling flow path unit includes:
an air guide configured to guide a flow of air introduced into the door, a blower mounted on the air guide; and
an inner panel disposed behind each of the air guide and the outer panel, wherein the air guide is coupled to the inner panel to form the flow path of air, wherein the inner panel is mounted on the outer panel, and wherein the air guide is disposed between the outer panel and the inner panel.

### Claim 2 (depends on 1)

The cooking appliance of claim 1, wherein the air guide includes at least one inlet disposed on an upper portion thereof, and through which external air is introduced, and a mounting hole formed under the at least one inlet, and in which the blower is mounted, and wherein the at least one inlet is formed in an upward-downward direction of the air guide, and the mounting hole is formed in a frontward-rearward direction of the air guide.

### Claim 3 (depends on 2)

The cooking appliance of claim 2, wherein the blower includes:
a casing disposed in the mounting hole; and
a fan rotatably mounted in the casing, and blowing air from a rear to a front of the air guide.

### Claim 4 (depends on 3)

The cooking appliance of claim 3, wherein the outer panel includes:
a first outlet disposed on an upper portion to discharge the air blown by the blower to the outside; and
a second outlet disposed on a lower portion to discharge the air blown by the blower to the outside.

### Claim 5 (depends on 4)

The cooking appliance of claim 4, wherein the air forcibly blown by the fan is introduced from the at least one inlet to flow in a downward direction of the door to be introduced into the fan, passes through the fan in a frontward-rearward direction of the door, and is branched in an upward-downward direction in front of the air guide, and wherein a first portion of the air flows in an upward direction of the door to be discharged through the first outlet, and a second portion of the air flows in the downward direction of the door to be discharged through the second outlet.

### Claim 6 (depends on 2)

The cooking appliance of claim 2, wherein at least one first aperture into which external air flows is formed at a location corresponding to the at least one inlet on an upper surface of the outer panel.

### Claim 7 (depends on 4)

The cooking appliance of claim 4, wherein the air guide and the inner panel form a first space in which the at least one inlet is formed, and a second space disposed under the first space and in which the blower is mounted.

### Claim 8 (depends on 7)

The cooking appliance of claim 7, wherein a third space through which the air passing through the fan is introduced and distributed to flow toward the first outlet and the second outlet is formed between the air guide and the outer panel.

### Claim 9 (depends on 8)

The cooking appliance of claim 8, wherein a cross-sectional area of the first space increases from a bottom toward a top of the door, and a cross-sectional area of the third space increases from the bottom toward the top of the door at a boundary point between the first space and the second space.

### Claim 10 (depends on 9)

The cooking appliance of claim 9, wherein the second space and the third space communicate via the mounting hole, and wherein the fan blows the air from the second space to the third space.

### Claim 11 (depends on 9)

The cooking appliance of claim 9, wherein the air guide includes an inclined portion inclined in an upward-downward direction to increase the cross-sectional area from a bottom toward a top of the air guide.

### Claim 12 (depends on 8)

The cooking appliance of claim 8, wherein air introduced into the door flows in the first space in the upward-downward direction of the door and then flow in the frontward-rearward direction of the door in the second space due to a change in the flow path to pass through the mounting hole of the air guide.

### Claim 13 (depends on 12)

The cooking appliance of claim 12, wherein the air introduced into the third space through the mounting hole is branched to flow upward and downward, and branched air is discharged to an outside of the door through the first outlet and the second outlet.

### Claim 14 (depends on 4)

The cooking appliance of claim 4, wherein air flows into the at least one inlet and flows along the flow path to cool the rear surface of the display unit, and then flows along the flow path and is discharged to the outside through the first outlet and the second outlet.

### Claim 15

A cooking appliance comprising a main body in which a cavity is formed, and a door that opens and closes the cavity, wherein the door includes:
a display module including a display unit disposed in front of the door; and
a cooling flow path unit disposed behind the display module, and having a flow path formed therein through which air for cooling flows, wherein the cooling flow path unit includes:
an air guide configured to guide a flow of air introduced into the door, and a blower mounted on the air guide, wherein the air guide includes:
at least one inlet disposed on an upper portion thereof, and through which external air is introduced; and
a mounting hole formed under the at least one inlet and passing through the air guide in a frontward-rearward direction, and wherein the blower includes:
a casing disposed in the mounting hole; and
a fan rotatably mounted in the casing.

### Claim 16 (depends on 15)

The cooking appliance of claim 15, wherein the display module includes:
the display unit on which videos or images are displayed; and
an outer panel disposed behind the display unit, and on which the display unit is mounted, and wherein the cooling flow path unit includes:
an inner panel disposed behind the outer panel, and mounted on the outer panel, and wherein the air guide is disposed between the outer panel and the inner panel, and coupled to the inner panel.

### Claim 17 (depends on 16)

The cooking appliance of claim 16, wherein the outer panel includes:
a first outlet disposed on an upper portion to discharge the air blown by the blower to the outside; and
a second outlet disposed on a lower portion to discharge the air blown by the blower to the outside.

### Claim 18 (depends on 17)

The cooking appliance of claim 17, wherein the air forcibly blown by the fan is introduced from the at least one inlet to flow in a downward direction of the door to be introduced into the fan, passes through the fan in a frontward-rearward direction of the door, and is branched in an upward-downward direction in front of the air guide, and wherein a first portion of the air flows in an upward direction of the door to be discharged through the first outlet, and a second portion of the air flows in the downward direction of the door to be discharged through the second outlet.
