Laundry treating apparatus

Patent metadata

Field	Value
Publication number	US-2024026599-A1
Application number	US-202318365632-A
Country	US
Kind code	A1
Filing date	Aug 4, 2023
Priority date	Aug 9, 2018
Publication date	Jan 25, 2024
Grant date	—

Abstract

A laundry treating apparatus includes a cabinet, a drum provided inside the cabinet and formed of a metal material for accommodating a treatment target, and an induction module spaced apart from an outer circumferential surface of the drum at a predetermined interval, inducing and heating the drum, where the induction module includes a base housing for accommodating a coil, a permanent magnet housing coupled with the base housing and provided with a holder in which a permanent magnet is accommodated, and a cover housing coupled with the permanent magnet housing, and the cover housing is coupled to the permanent magnet housing and therefore the permanent magnet is located between the permanent magnet housing and the cover housing. A joint force of the induction module may be enhanced to improve durability, and noise caused by vibration of a tub may be avoided.

First claim

What is claimed is:

1 . A laundry treating apparatus comprising:
a cabinet; a drum provided inside the cabinet and made of a metal material, the drum being configured to accommodate a treatment target; and an induction module spaced apart from an outer circumferential surface of the drum at a predetermined interval, the induction module being configured to heat the drum by induction, wherein the induction module includes:
a base housing that accommodates a coil,
a cover housing that defines a first through portion configured to discharge heat generated from the coil, and
a permanent magnet housing disposed between the base housing and the cover housing, the permanent magnet defining a second through portion in communication with the first through portion of the cover housing jointed to an upper portion of the base housing.

2 . The laundry treating apparatus of claim 1 , wherein the first through portion is defined at an uppermost end of the induction module.

3 . The laundry treating apparatus of claim 2 , wherein the first through portion is defined at a center of the cover housing.

4 . The laundry treating apparatus of claim 1 , wherein the permanent magnet housing comprises holders that accommodate permanent magnets.

5 . The laundry treating apparatus of claim 4 , wherein the permanent magnet housing further comprises a connector that connects the holders.

6 . The laundry treating apparatus of claim 5 , wherein the connector connects an upper portion of the holders.

7 . The laundry treating apparatus of claim 6 , wherein the connector is spaced apart from the base housing to thereby define a space for discharging the heat generated from the coil.

8 . The laundry treating apparatus of claim 7 , wherein the connector defines third through portions.

9 . The laundry treating apparatus of claim 8 , wherein the third through portion is provided to spaces between the holders.

10 . The laundry treating apparatus of claim 1 , wherein a fan is mounted in the first through portion.

11 . The laundry treating apparatus of claim 9 , wherein the cover housing defines an inclined section that is upwardly inclined toward the first through portion and configured to move the heat generated from the coil along the inclined section and discharge the heat to the first through portion.

12 . The laundry treating apparatus of claim 11 , wherein the permanent magnet housing defines an inclined section that is upwardly inclined toward the second through portion of the permanent magnet housing, and
wherein the inclined section of the cover housing is steeper than the inclined section of the permanent magnet housing.

13 . The laundry treating apparatus of claim 12 , wherein the base housing defines an inclined section that is upwardly inclined toward the third through portion of the permanent magnet housing, and
wherein the inclined section of the cover housing is steeper than the inclined section of the base housing.

14 . The laundry treating apparatus of claim 1 , wherein the base housing and the permanent magnet housing include curved surfaces having a same curvature.

15 . The laundry treating apparatus of claim 1 , further comprising a tub that accommodates the drum, wherein the base housing is fixed to the tub while adjoining an outer circumferential surface of the tub.

Assignees

• Lg Electronics Inc

Inventors

• Lee Youngjoo
• Hong Sangwook

Classifications

• D06F58/26 Primary

  Heating arrangements, e.g. gas heating equipment (D06F58/18 takes precedence) · CPC title

• D06F39/04 Primary

  Heating arrangements · CPC title

• D06F58/04

  Details  (controlling or regulating devices D06F34/00) · CPC title

• H05B6/102

  the metal pieces being rotated while induction heated · CPC title

• H05B6/365

  using supplementary conductive or ferromagnetic pieces · CPC title