Housing assembly and cooking appliance

Patent metadata

Field	Value
Publication number	US-11141018-B2
Application number	US-201716492169-A
Country	US
Kind code	B2
Filing date	Dec 6, 2017
Priority date	Mar 9, 2017
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

The present disclosure provides a housing assembly and a cooking appliance. The housing assembly includes a metal housing and an insulating member. The metal housing takes the shape of a disconnected ring on the whole, with a notch formed at a disconnected portion of the metal housing; the insulating member connects a disconnected end of the metal housing and covers the notch so that the housing assembly forms a closed-loop open circuit structure. According to the housing assembly provided by the present disclosure, as the metal housing is disconnected, and the disconnected portion of the metal housing is connected by the insulating member, so that the housing assembly is disconnected on the circuit, therefore, the magnetic field induction of the metal housing can be weaken to reduce the temperature rise.

First claim

What is claimed is:

1. A cooking appliance, comprising:
an electromagnetic induction heating device;
a liner, wherein a magnetic line of flux produced by the electromagnetic induction heating device can penetrate the liner, so that the liner performs induction heating; and
a housing assembly for the electromagnetic induction heating device, the housing assembly being sleeved on the outer side of the liner of the cooking appliance, wherein the housing assembly comprises:
a metal housing which is an annular housing on the whole with one or a plurality of disconnected potions, with one or a plurality of notches correspondingly formed at each of the disconnected portions of the metal housing, each notch having a width along the circumferential direction of the metal housing that is greater than or equal to 2 mm; and
one or a plurality of insulating members, each connecting two ends of one of the disconnected portions of the metal housing and covering the notch correspondingly formed by the one of the disconnected portions so that the housing assembly forms a closed-loop open circuit structure.

2. The housing assembly according to claim 1 , wherein a buckle is arranged on one of the metal housing and each insulating member, a clamping hole is formed in the other of the metal housing and each insulating member, and the buckle is matched with the clamping hole, so that the metal housing is clamped with each insulating member.

3. The housing assembly according to claim 1 , wherein at least one locating rib matching with each notch is arranged on each insulating member.

4. The housing assembly according to claim 3 , wherein the number of the locating ribs at each notch is plural, and a plurality of the locating ribs are arranged in parallel along the axial direction of the metal housing.

5. The housing assembly according to claim 1 , wherein the metal housing is an insert, each insulating member is made of plastic, and each insulating member and the metal housing are integrally formed by injection molding.

6. The housing assembly according to claim 5 , wherein a through hole in which each insulating member is partially embedded is formed in the metal housing; and/or,
a stopper protrusion is arranged on the metal housing, and the stopper protrusion is embedded in each insulating member.

7. The housing assembly according to claim 1 , wherein the number of the insulating members is equal to the number of the notches, and the insulating members correspond to the notches one by one.

8. The housing assembly according to claim 7 , wherein a clamping hole is formed in one of the metal housing and each insulating member, a clamping member is arranged on the other of the metal housing and each insulating member, and the clamping member is matched with the clamping hole, so that each insulating member is clamped with the metal housing.

9. The housing assembly according to claim 8 , wherein the clamping member is a n L-shaped buckle, and the L-shaped buckle penetrates the clamping hole and abuts against the one of the metal housing and the insulating member.

10. The housing assembly according to claim 9 , wherein the number of L-shaped buckles is plural and are divided into two groups, and the two groups of L-shaped buckles are respectively located on two sides of the notch; and
the two groups of L-shaped buckles face to the same direction; or
the L-shaped buckles are located on the insulating member, and the two groups of L-shaped buckles face to the notch; or
the L-shaped buckles are located on the metal housing, and the two groups of L-shaped buckles face away from the notch.

11. The housing assembly according to claim 10 , wherein a barb is arranged at the tail of at least one of the L-shaped buckles in each group of L-shaped buckles, a bump is arranged on one of the metal housing and the insulating member, and the barb is hooked on the bump.

12. The housing assembly according to claim 8 , wherein the clamping member comprises a plurality of elastic buckles, and
the plurality of elastic buckles are arranged back to back and enclose an elastic column buckle; or
the clamping member comprises a connecting column with a radial through hole and a spring latch matched with the radial through hole, wherein the connecting column penetrates the clamping hole, and the spring latch penetrates the radial through hole and is clamped on the connecting column.

13. The housing assembly according to claim 8 , wherein a rim for protecting the clamping member is arranged on the peripheral edge of the clamping hole.

14. The housing assembly according to claim 7 , wherein a through hole is formed in one of the metal housing and each insulating member, and a connecting column having the ability of plastic deformation is arranged on the other of the metal housing and each insulating member;
the connecting column penetrates the clamping hole, a portion of the connecting column protruding from the through hole deforms into a stopper projection with a section size being greater than the size of the through hole, and the stopper projection abuts against the one of the metal housing and each insulating member, so that each insulating member is fixedly connected with the metal housing.

15. The housing assembly according to claim 14 , wherein when the connecting column is arranged on the metal housing, and the connecting column is a hollow connecting column.

16. The housing assembly according to claim 7 , wherein through holes are formed in both of each insulating member and the metal housing, a fastener penetrates the through holes in each insulating member and the metal housing, so that each insulating member is fixedly connected with the metal housing; or
a jagged through hole is formed in one of the metal housing and each insulating member, a connecting column is arranged on the other of the metal housing and each insulating member, and the connecting column penetrates the jagged through hole and is limited in the jagged through hole, so that each insulating member is fixedly connected with the metal housing.

17. The housing assembly according to claim 7 , wherein a folded plate is arranged on the metal housing, a connecting hole matched with the folded plate is formed in each insulating member, and the folded plate is pressed on each insulating member after penetrating the connecting hole, so that each insulating member is fixedly connected with the metal housing.

18. The housing assembly according to claim 17 , wherein a boss is further arranged on each insulating member, the boss is located on an edge of the connecting hole, and the folded plate is firstly bent and pressed on the boss and then is bent and pressed on each insulating member.

Assignees

• Foshan Shunde Midea Electrical Heating Appliances Mfg Co Ltd

Inventors

• Wu Yuquan
• Zhu Chuanbin
• Yuan Wei
• Qu Yuehong
• Chen Wei
• Chen Xianhuai
• Fu Zhengting
• Zhu Linbo
• Luo Zhixiao

Classifications

• H05B2206/02

  Induction heating · CPC title

• A47J36/02

  Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay · CPC title

• A47J27/004 Primary

  with integral electrical heating means (drinking cups with integral heating means A47J36/2466) · CPC title

• A47J27/002 Primary

  Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels · CPC title

• H05B6/12

  Cooking devices · CPC title