Heating device

Patent metadata

Field	Value
Publication number	US-12150229-B2
Application number	US-201917420497-A
Country	US
Kind code	B2
Filing date	Dec 11, 2019
Priority date	Jan 4, 2019
Publication date	Nov 19, 2024
Grant date	Nov 19, 2024

Abstract

Disclosed is a heating device (100), including: a metal cylinder body (110) provided with a pick-and-place opening, a door body (120) configured to open and close the pick-and-place opening, an electromagnetic generating module (161) configured to generate an electromagnetic wave signal, and a radiating antenna (150). The radiating antenna (150) is configured to be electrically connected with the electromagnetic generating module (161) to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal. The heating device (100) further includes an antenna housing (130) made of an insulating material. The antenna housing (130) is configured to separate an inner space of the cylinder body (110) into a heating chamber (111) and an electrical appliance chamber (112), wherein an object to be processed and the radiating antenna (150) are respectively disposed in the heating chamber (111) and the electrical appliance chamber (112), and the radiating antenna (150) is configured to be fixedly connected with the antenna housing (130). The heating device (100) covers and fixes the radiating antenna (150) through the antenna housing (130), which not only can separate the object to be processed from the radiating antenna (150) to prevent the radiating antenna (150) from being dirty or damaged by accidental touch, but also can simplify the assembly process of the heating device (100) to facilitate the positioning and installation of the radiating antenna (150).

First claim

The invention claimed is:

1. A heating device, comprising:
a metal cylinder body, 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;
an electromagnetic generating module, configured to generate an electromagnetic wave signal; and
a radiating antenna, configured to be electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency according to the electromagnetic wave signal, wherein the heating device further comprises:
an antenna housing, made of an insulating material and configured to separate an inner space of the cylinder body into a heating chamber and an electrical appliance chamber, wherein an object to be processed and the radiating antenna are respectively disposed in the heating chamber and the electrical appliance chamber; and
the radiating antenna is configured to be fixedly connected with the antenna housing.

2. The heating device according to claim 1 , wherein the antenna housing comprises:
a clapboard, configured to separate the heating chamber and the electrical appliance chamber; and
a skirt part, configured to be fixedly connected with an inner wall of the cylinder body.

3. The heating device according to claim 2 , wherein the antenna housing is disposed at a bottom of the cylinder body, and the radiating antenna is horizontally fixed on a lower surface of the clapboard.

4. The heating device according to claim 3 , wherein the radiating antenna is disposed at a height of ⅓ to ½ of the cylinder body.

5. The heating device according to claim 3 , further comprising:
a signal processing and measurement and control circuit, disposed in the electrical appliance chamber and located on a rear side or the radiating antenna, comprising:
a detection unit, connected in series between the electromagnetic generating module and the radiating antenna, and configured to detect specific parameters of an incident wave signal and a reflected wave signal passing through the detection unit;
a control unit, configured to calculate an electromagnetic wave absorption rate of the object to be processed according to the specific parameters; and
a matching unit, connected in series between the electromagnetic generating module and the radiating antenna, and configured to adjust a load impedance of the electromagnetic generating module according to the electromagnetic wave absorption rate.

6. The heating device according to claim 5 , wherein the signal processing and measurement and control circuit is integrated on a circuit board, and the circuit board is horizontally disposed.

7. The heating device according to claim 1 , wherein the radiating antenna is configured to be engaged with the antenna housing.

8. The heating device according to claim 7 , wherein
the radiating antenna is provided with a plurality of engaging holes; and
the antenna housing is correspondingly provided with a plurality of buckles, and the plurality of buckles are configured to respectively pass through the plurality of engaging holes to be engaged with the radiating antenna, wherein
each of the buckles is composed of two barbs disposed at an interval and in mirror symmetry; or
each of the buckles is composed of a fixing part perpendicular to the radiating antenna and having a hollow middle part, and an elastic part extending inclining to the fixing part from an inner end edge of the fixing part and toward the radiating antenna.

9. The heating device according to claim 1 , wherein the radiating antenna is configured to be fixed to the antenna housing by an electroplating process.

10. The heating device according to claim 1 , wherein the antenna housing is made of a non-transparent material.

Assignees

• Haier Smart Home Co Ltd
• Qingdao haier special refrigeration electric appliance co ltd

Inventors

• Wang Haijuan
• Zhao Kunkun
• Mu Sen
• Cao Dongqiang

Classifications

• A23B2/82

  Thawing subsequent to freezing · CPC title

• A23B2/08

  using microwaves or dielectric heating · CPC title

• A23B2/001

  Details of apparatus, e.g. pressure feed valves or for transport, or loading or unloading manipulation · CPC title

• H05B6/72

  Radiators or antennas · CPC title

• H05B6/6402

  Aspects relating to the microwave cavity · CPC title