Refrigerating and freezing device

Patent metadata

Field	Value
Publication number	US-11971211-B2
Application number	US-202017425078-A
Country	US
Kind code	B2
Filing date	Jan 20, 2020
Priority date	Jan 30, 2019
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

A refrigerating and freezing device includes a cabinet defining at least one storage compartment, at least one cabinet door configured to respectively open and close the at least one storage compartment, a refrigerating system configured to provide cooling capacity to the at least one storage compartment, and a heating unit. The heating unit includes a container body disposed in one storage compartment and provided with a pick-and-place opening, a door body configured to open and close the pick-and-place opening, an electromagnetic generating system configured to generate electromagnetic waves in the container body to heat an object to be processed and a cabinet door detection device configured to detect open and closed states of the cabinet door corresponding to the storage compartment provided with the container body; wherein the electromagnetic generating system stops generating electromagnetic waves when the corresponding cabinet door is in an open state.

First claim

The invention claimed is:

1. A refrigerating and freezing device, comprising:
a cabinet, defining at least one storage compartment;
at least one cabinet door, configured to respectively open and close the at least one storage compartment;
a refrigerating system, configured to provide cooling capacity to the at least one storage compartment; and
a heating unit, wherein the heating unit comprises:
a container body, disposed in one of the storage compartments and provided with a pick-and place opening;
a door body, disposed at the pick-and-place opening and configured to open and close the pick-and-place opening; and
an electromagnetic generating system, at least a part of which is disposed in the container body or accessed into the container body, so as to generate electromagnetic waves in the container body to heat an object to be processed; and the refrigerating and freezing device further comprising:
a cabinet door detection device, configured to detect open and closed states of the cabinet door corresponding to the storage compartment provided with the container body; and the electromagnetic generating system stopping generating electromagnetic waves when a corresponding cabinet door is in an open state;
wherein the heating unit further comprises a door body detection device, configured to detect open and closed states of the door body; and the electromagnetic generating system stopping generating electromagnetic waves when the door body is in an open state;
wherein the electromagnetic generating system comprises:
an electromagnetic generating module, configured to generate an electromagnetic wave signal;
a radiating antenna, disposed at a bottom of the container body and electrically connected with the electromagnetic generating module so as to generate electromagnetic waves in the container body; and
a signal processing and measurement and control circuit, disposed at the bottom of the container body and located on a rear side of the radiating antenna, and configured to receive electrical signals of the cabinet door detection device and the door body detection device and enable the electromagnetic generating module to stop working when it is determined that the corresponding cabinet door is in an open state or the door body is in an open state;

wherein the heating unit further comprises a housing configured to separate an inner space of the container body into a heating chamber and an electrical appliance chamber, the heating chamber being configured to place the object to be processed, and the electrical appliance chamber being configured to place the radiating antenna and the signal processing and measurement and control circuit;
wherein a rear part of the housing is configured to protrude upward to form an enlarged space below the housing; and
wherein the door body detection device is fixed to a front wall of an upward protruding part of the housing.

2. The refrigerating and freezing device according to claim 1 , wherein the pick-and-place opening is formed in a front wall of the container body; and the heating unit further comprises: a drawer, configured to be slidably connected with two lateral side walls of the container body and fixedly connected with the door body.

3. The refrigerating and freezing device according to claim 2 , wherein the door body detection device is a travel switch disposed at a rear part of the container body and configured to be triggered by a rear wall of the drawer when the door body is in a closed state.

4. The refrigerating and freezing device according to claim 1 , wherein one of the cabinet doors is provided with an interactive module configured to receive a heating start command and transmit the command to the electromagnetic generating system.

5. The refrigerating and freezing device according to claim 4 , wherein
the electromagnetic generating system is configured to start generating electromagnetic waves when the corresponding cabinet door and the door body are closed and the heating start command is received.

6. The refrigerating and freezing device according to claim 1 , wherein the electromagnetic generating system is configured to start generating electromagnetic waves when the corresponding cabinet door and the door body are closed and a heating start command is received.

7. The refrigerating and freezing device according to claim 1 , further comprising: a buzzer, configured to start working when the electromagnetic generating system stops generating electromagnetic waves, so as to prompt a user that heating has stopped.

Assignees

• Qingdao haier special refrigerator co ltd
• Qingdao haier refrigerator co ltd
• Haier Smart Home Co Ltd

Inventors

• Wang Haijuan
• Mu Sen
• Li Peng
• Zhao Kunkun

Classifications

• A23B2/82

  Thawing subsequent to freezing · CPC title

• F25D23/12 Primary

  Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove · CPC title

• A23L3/365

  Human Necessities · mapped topic

• F25D11/02

  with cooling compartments at different temperatures · CPC title

• F25D29/005

  Mounting of control devices · CPC title