Laundry treating apparatus

Patent metadata

Field	Value
Publication number	US-2021017696-A1
Application number	US-202016751291-A
Country	US
Kind code	A1
Filing date	Jan 24, 2020
Priority date	Aug 9, 2018
Publication date	Jan 21, 2021
Grant date	—

Abstract

A laundry treating apparatus includes a cabinet, a drum provided inside the cabinet and formed of a metal material, and an induction module configured to heat the drum, The induction module includes a base housing for accommodating a coil, and a cover housing forming a moving space of heat generated from the coil, jointed to an upper portion of the base housing, the cover housing includes a through portion for discharging the heat by passing through the cover housing up and down, and the cover housing forms a section upwardly inclined toward the through portion to move the heat generated from the coil along the inclined section and discharge the heat to the through portion. It is possible to prevent a temperature of the coil from being excessively increased, and enhance durability and efficiency of the induction module by active discharge of heat generated from the coil.

First claim

What is claimed is:

1 . A laundry treating apparatus comprising:
a cabinet; a drum disposed inside the cabinet and configured to accommodate a treatment object, the drum being made of a metal material; and an induction module that is spaced apart from an outer circumferential surface of the drum and configured to heat the drum by induction, the induction module comprising:
a base housing that accommodates a coil, and
a cover housing that is coupled to an upper portion of the base housing and that defines a guide space configured to transfer heat generated from the coil,
wherein the cover housing defines a through portion that passes through the cover housing in a vertical direction toward the base housing and that is configured to discharge the heat generated from the coil, the cover housing comprising a first inclined section that is upwardly inclined toward the through portion with respect to a horizontal direction, and wherein the cover housing is configured to guide the heat generated from the coil along the first inclined section and discharge the heat to the through portion.

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

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

4 . The laundry treating apparatus of claim 1 , wherein the induction module further includes a magnet housing that is disposed between the base housing and the cover housing and that comprises a holder configured to accommodate a magnet therein.

5 . The laundry treating apparatus of claim 4 , wherein the holder comprises a plurality of holders, and
wherein the magnet housing further comprises a connector that connects the plurality of holders to each other.

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

7 . The laundry treating apparatus of claim 6 , wherein the connector is spaced apart from the base housing to define a gap from the base housing, the gap being configured to discharge the heat generated from the coil.

8 . The laundry treating apparatus of claim 4 , wherein the magnet housing defines a through hole in communication with the through portion of the cover housing.

9 . The laundry treating apparatus of claim 8 , wherein the magnet housing comprises a second inclined section that is upwardly inclined toward the through hole with respect to the horizontal direction, and
wherein the first inclined section is steeper than the second inclined section with respect to the horizontal direction.

10 . The laundry treating apparatus of claim 9 , wherein the base housing comprises a third inclined section that is upwardly inclined toward the through hole of the magnet housing with respect to the horizontal direction, and
wherein the first inclined section is steeper than the third inclined section with respect to the horizontal direction.

11 . The laundry treating apparatus of claim 10 , wherein the base housing and the magnet housing comprise curved surfaces, respectively, the curved surfaces having a same curvature.

12 . A laundry treating apparatus comprising:
a cabinet; a drum disposed inside the cabinet and configured to accommodate a treatment object, the drum being made of a metal material; and an induction module that is spaced apart from an outer circumferential surface of the drum and configured to heat the drum by induction, the induction module comprising:
a base housing that accommodates a coil, and
a cover housing that defines a guide space configured to transfer heat generated from the coil and that is coupled to an upper portion of the base housing,
wherein the cover housing defines a through portion that passes through the cover housing in a vertical direction toward the base housing and that is configured to discharge the heat generated from the coil, and wherein the base housing and the cover housing have bent surfaces, respectively, and wherein the cover housing is configured to guide the heat generated from the coil along the bent surfaces and discharge the heat to the through portion.

13 . The laundry treating apparatus of claim 12 , wherein the induction module further comprises a magnet housing disposed between the base housing and the cover housing, the magnet housing comprising a holder configured to accommodate a magnet therein.

14 . The laundry treating apparatus of claim 13 , wherein the magnet housing and the base housing have curved surfaces, respectively, the curved surfaces having a same curvature.

15 . The laundry treating apparatus of claim 12 , further comprising a tub that accommodates the drum,
wherein the base housing is fixed to an outer circumferential surface of the tub.

16 . A laundry treating apparatus comprising:
a cabinet; a tub disposed inside the cabinet; a drum disposed inside the tub and configured to accommodate a target object, the drum being made of a metal material; and an induction module that is coupled to an outer circumferential surface of the tub and configured to heat the drum by induction, the induction module comprising:
a base housing that accommodates a coil and that faces the outer circumferential surface of the tub,
a cover housing that is disposed vertically above the base housing and that is spaced apart from an upper surface of the based housing to thereby define a guide space configured to transfer heat generated from the coil, and
a magnet housing disposed vertically between the base housing and the cover housing, the magnet housing defining a plurality of holders that pass through the magnet housing and that are configured to accommodate magnets, respectively,
wherein the cover housing defines a through portion configured to discharge the heat from the guide space to an outside of the induction module.

17 . The laundry treating apparatus of claim 16 , wherein the plurality of holders are arranged about a center portion of the magnet housing, and
wherein the through portion is defined at a position corresponding to the center portion of the magnet housing.

18 . The laundry treating apparatus of claim 17 , wherein the magnet housing further defines a center through hole at the center portion of the magnet housing, the center through hole being in communication with the through portion of the cover housing.

19 . The laundry treating apparatus of claim 18 , wherein the magnet housing further defines a plurality of through parts that are arranged about the center through hole and that pass through the magnet housing toward the base housing, each of the plurality of through parts being disposed between the plurality of holders.

20 . The laundry treating apparatus of claim 19 , wherein the cover housing covers the plurality of through parts of the magnet housing.

Assignees

• Lg Electronics Inc

Inventors

• Lee Youngjoo
• Hong Sangwook

Classifications

• H05B6/42

  Cooling of coils · CPC title

• H05B2206/022

  Special supports for the induction coils · CPC title

• D06F37/20

  Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations · CPC title

• D06F58/04

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

• D06F37/267

  Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups (D06F37/206 takes precedence) · CPC title