CN102357494B - Washing machine magnetic cleaning method for same and washing machine - Google Patents

Washing machine magnetic cleaning method for same and washing machine Download PDF

Info

Publication number
CN102357494B
CN102357494B CN201110239270.4A CN201110239270A CN102357494B CN 102357494 B CN102357494 B CN 102357494B CN 201110239270 A CN201110239270 A CN 201110239270A CN 102357494 B CN102357494 B CN 102357494B
Authority
CN
China
Prior art keywords
outer barrel
particle
washing machine
cleaning
granulation mass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201110239270.4A
Other languages
Chinese (zh)
Other versions
CN102357494A (en
Inventor
梁海山
李海涛
许升
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Drum Washing Machine Co Ltd
Original Assignee
Haier Group Corp
Qingdao Haier Drum Washing Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Haier Group Corp, Qingdao Haier Drum Washing Machine Co Ltd filed Critical Haier Group Corp
Priority to CN201110239270.4A priority Critical patent/CN102357494B/en
Publication of CN102357494A publication Critical patent/CN102357494A/en
Application granted granted Critical
Publication of CN102357494B publication Critical patent/CN102357494B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of washing machine magnetic cleaning method for same, cleaning particle is had between outer barrel in washing machine, cleaning particle is made up of rubber or plastics and magnetic metal material, outer barrel outer wall is equipped with calutron, in washing procedure or rinsing program, be provided with particle between interior outer barrel, form cleaning step S2 between inner and outer barrel wall of the forming step S1 of granulation mass, granulation mass and granulation mass breakdown procedure S3.The invention still further relates to a kind of washing machine using this magnetic cleaning method for same.Present invention achieves while laundry, energy-saving high efficiency completes cleaning outer barrel in washing machine, solves the problem of dirty secondary pollution clothing between interior outer barrel.

Description

Washing machine magnetic cleaning method for same and washing machine
Technical field
The present invention relates to washing machine and cleaning method for washing machine, particularly relate to a kind of method and the automatic washing machine that utilize outer barrel in magnetic force cleaning washing machine.
Background technology
Domestic electric washer is divided into pulsator washing machine, roller washing machine, stirring washing machine.No matter for which kind of washing machine, due to the limitation of washing machine structure and the particularity of environment for use, in washing machine internal between outer barrel owing to being that a closed environment only has current to pass through, so understand bind dirt between interior outer barrel, through associated mechanisms qualification after use 3-5, washing machine internal can grow bacterium in various degree, and the bacterium overwhelming majority of growing is harmful, Related Bacteria such as Escherichia coli often cause severe diarrhea and septicemia to baby, and the symptom of people after ehec infection is stomachache, vomits, suffers from diarrhoea and heating.Staphylococcus: easy infection skin, also can cause fascitis, a kind of infection in subcutaneous diffusion.Especially the baby after birth in six weeks.The Staphylococcal skin infections of two kinds of especially severes is toxic epidermal necrolysis and flaky skin syndrome, and these two kinds of diseases all can cause skin bulk to be peeled.Mould: after mould encounters water, sporocyst discharges, and is attached on clothing, easily causes skin disease.Along with the raising of people's living standard and the raising that requires quality of life, the solution of the hygienic issues of washing machine is aobvious very urgent.It is the scheme of placing ball in the middle of interior outer barrel at first patent ZL200820183308.4, the method forms friction between outer barrel by a ball independent role in washing machine, play cleaning effect method and in washing machine, form friction between outer barrel by a ball independent role, play cleaning effect, the method can only be applied to the type of new production, and can only in plant produced.In addition, technical scheme described in ZL200820183308.4 places silica-gel sphere in interior outer barrel to wash, but the relative hardness of this ball is larger, finds that the clean effect played of the internal outer barrel of the thing of hard is very little in test.And its quantity is that 20-80 easily produces very large noise in washing process especially dehydration, increases the energy consumption of washing machine, affects the life-span of washing machine simultaneously.ZL03155336.2 denomination of invention is in the patent of invention of cleaning method for washing machine; disclose a kind of cleaning method for washing machine cleaning the foreign matters such as the mildew produced in washing machine, be provided with: with the cleaning fluid containing cleaning agent, outer barrel, interior bucket etc. are carried out the cleaning stroke cleaned; With the rinsing stroke carried out after described cleaning stroke.Wherein clean stroke to carry out successively: formed in washing tub and outer barrel the cleaning fluid of normal concentration, along with described impeller interrupted counter-rotational immersion and there is the rinsing stroke of draining of being discharged by the cleaning fluid in washing tub.This method need set up cleaning procedure separately, uses cleaning agent, and power consumption water consumption consuming time, bring certain wasting of resources, while cannot laundry washer being solved, solve the problem of outer barrel in cleaning.
Summary of the invention
The present invention is based on above-mentioned defect of the prior art, for solving the problem, the invention provides one and establishing washing machine magnetic cleaning method for same and washing machine.
The object of the invention is, is provided with magnetic force cleaning device and control method, and while laundry, high efficiency completes cleaning outer barrel in washing machine, economize energy.
In order to realize the object of the invention, the present invention adopts following technical scheme:
A kind of washing machine magnetic cleaning method for same, cleaning particle is had between outer barrel in washing machine, cleaning particle is by rubber or plastic material and magnetic metal material forms and density is less than water, outer barrel outer wall is equipped with calutron, in washing procedure or rinsing program, be provided with particle between interior outer barrel, form cleaning step S2 between inner and outer barrel wall of the forming step S1 of granulation mass, granulation mass and granulation mass breakdown procedure S3.
Further, what also comprise described cleaning particle adds step S0.
The diameter of described particle is greater than the through-hole diameter on inner barrel wall, and described cleaning particle contains magnetic metal core by rubber or plastics and forms.
Described granulation mass forming step S1, comprises following operation: S11: washing of drum type washing machine or rinsing inflow start, and calutron is energized; S12: between interior outer barrel, particle is floating under the effect of water; S13: floating particle is piled up at the outer barrel inwall that calutron is corresponding.
Described granulation mass cleaning step S2 comprises following operation: S21: the sliding system action of calutron, and electromagnetic block pumps along outer barrel outer wall; S22: meanwhile, granulation mass pumps at outer barrel inwall adaptably with electromagnetic block; S23: moving up and down simultaneously of granulation mass, carries out cleaning inner and outer barrel wall.
In described granulation mass cleaning step S2 between the height of water level of the reciprocating altitude range of granulation mass at the bottom of outer barrel and set by program.
Described granulation mass breakdown procedure S3 comprises following operation: S31: draining starts, calutron power-off, and granulation mass is disintegrated, and particles float is between interior outer barrel; S32: particle under gravity and flow action, is discharged to the drain pipe port that screen pack is housed in drainage procedure; Or in the groove of particle packing at the bottom of outer barrel, the discharge outlet place of groove is provided with screen pack.
The invention still further relates to a kind of washing machine using magnetic cleaning method for same, comprise outer barrel, interior bucket, control system, transmission system, also comprise cleaning particle, cleaning particle contains metal-cored composition by rubber or plastic material, outer barrel outer wall is equipped with calutron, the instruction of calutron receiving control system, in washing procedure or rinsing program, particle forms granulation mass between interior outer barrel.
The proportion of described cleaning particle is less than the proportion of water, and the diameter of described particle is greater than the through-hole diameter on inner barrel wall, and described outer barrel covers and has particle and add hand-hole, and drain pipe port is provided with the screen pack for reclaiming particle.
Described calutron comprises electromagnet, step dynamic motor, belt, and electromagnet, under step moves motor effect, pumps along belt.
By adopting above-mentioned technical scheme, structure is simple, and solid and reliable, operation is simple and feasible for method, and cleaning problem between the interior outer barrel solving washing machine, avoids because dirt between interior outer barrel is to the issuable secondary pollution problem of clothing.
Accompanying drawing explanation
Fig. 1 is outer barrel most preferred embodiment schematic diagram in washing machine of the present invention;
Fig. 2 is magnetic cleaning method for same schematic flow sheet of the present invention.
Number in the figure:
1. outer barrel, bucket 2., 3. impeller, 4. outer bung, 41. particles drop into hole, 5. calutron, 51. pulleys, 52. belts, 53. electromagnet, 54. motors, 6. particle, 7. drainpipe, 8. filter screen.
Detailed description of the invention
Below in conjunction with accompanying drawing, washing machine magnetic cleaning method for same provided by the invention and washing machine are described in detail.
Kind washing machine magnetic cleaning method for same described in the embodiment of the present invention, comprises particle and drops into step, granulation mass forming step, granulation mass slip step and granulation mass disintegration collection step.The diameter of particle is greater than the through-hole diameter on inner barrel wall, is less than the diameter that outer barrel covers particle input port.Granulation mass is formed and comprises: washing of drum type washing machine or rinsing inflow start, and calutron is energized; Between interior outer barrel, particle is floating under the effect of water; Floating particle is piled up at the outer barrel inwall that calutron is corresponding.Granulation mass cleaning comprises following operation: the sliding system action of calutron, and electromagnetic block pumps along outer barrel outer wall; Meanwhile, granulation mass pumps at outer barrel inwall adaptably with electromagnetic block; Moving up and down simultaneously of granulation mass, carries out cleaning inner and outer barrel wall, further, in granulation mass cleaning process between the height of water level of the reciprocating altitude range of granulation mass at the bottom of outer barrel and set by program.Granulation mass breakdown procedure comprises: draining starts, calutron power-off, and granulation mass is disintegrated, and particles float is between interior outer barrel; Particle is in drainage procedure under gravity and flow action, and be discharged in the drain pipe port that screen pack is housed and again collect, particle is reusable.
The invention still further relates to a kind of washing machine using this magnetic cleaning method for same, embodiment as shown in Figure 1, comprise outer barrel 1, interior bucket 2, control system, transmission system, impeller 3, outer bung 4, outer bung 4 there is particle input port 41, cleaning particle 6, contain magnetic metal core by rubber or plastic material to form, or described cleaning particle makes by adding metal particle in rubber or plastics in proportion.Outer barrel 1 outer wall is equipped with calutron 5, the instruction of calutron 5 receiving control system, and in washing procedure or rinsing program, particle forms granulation mass between interior outer barrel, and calutron 5 comprises pulley 51, belt 52, electromagnet 53, motor 54.Bottom outer barrel 1 fluted 9, groove 9 connects drainpipe 7, and the end of drainpipe 7 is provided with filter screen 8, for collecting the particle flowed out with drainage procedure.Particularly, the method that the present invention cleans inner and outer barrel wall is the action principle that water draw and solid particle mixture motion get up to have cleaning container, imitative sand washing principle.The present invention only needs on the outer bung 4 by washing machine, an aperture slightly larger than washing granule is increased above gap between interior outer barrel, drop into hole 41 as particle, increase the filter screen 8 of a collecting granules at the water outlet of washing machine sewer pipe 7, so that recycling particle 6.Particle 6 by outsourcing one deck lighter weight unshakable in one's determination and more wear-resisting material form, can be the rubber of foaming, or polyurethane or TPU or other density be lower than the material of water.Bead make rear than important lower than water, can swim on the water surface.Outside outer barrel of washing machine, place a magnet according to the position of washing, bead can be adsorbed on outer barrel inwall by the magnetic force of magnet, and is deposited in and forms granulation mass together.In washing process, due to impeller ceaselessly forward and reverse rotation, water sport in driving in bucket, interior bucket rub to assemble granulation mass, similarly rubbing on sand drift, can remove the dirt of adsorption, moves about in the gap of bead between interior outer barrel being subject to interior bucket rubbing action, assemble again with time near water movement to magnet, and rub again and clean interior bucket.The particle self be placed between interior outer barrel has antibacterial and antimildew function, particle itself has certain elasticity and plasticity, compressive hardness controls within limits, particle has certain life-span, and it is very wear-resisting, technique controls it can not fall to consider foam to be worth doing, the shape of particle can be varied, cylinder, cuboid, spheroid, square etc.Granule interior encloses iron core, can be gathered into " sand drift " shape, utilize the power on/off adsorption particle of electromagnet under the effect of magnetic force, is deposited in particle friction washing machine drum wall together.For the ease of cleaning inner barrel wall up hill and dale, granulation mass is followed electromagnet 53 and is pumped, and cleans more thorough.A kind of mode that granulation mass moves up and down has been shown in Fig. 1, and after calutron energising, electromagnet 53, motor 54 are energized, and belt 52 is at pulley 51 move under influence, and belt 52 is with motor magnet 53 to move, then granulation mass can move up and down thereupon.
As another kind of embodiment (illustrating) of the present invention, do not use external filter screen, groove can be set at washing machine bottom yet, and utilize electromagnet to carry out collecting granules.Or groove is deepened, and the discharge outlet place of groove arranges filter screen, is stored in washing machine by particle.
In sum, by adopting above-mentioned technical scheme, carrying out the clean of interior outer barrel while user washes clothes, washing at any time, clean at any time, do not stay dirt, totally relieved, thoroughly solve the problem of washing machine due to the dirty secondary pollution clothing of interior outer barrel.
Certainly, the present invention is not limited to above-mentioned citing, the technical scheme that it will be apparent to those skilled in the art that, without departing from the spirit or scope of the present invention, make various amendment to the present invention and change in the claims in the present invention and equivalent scope of replacing thereof, then such amendment and change are contained in the present invention.

Claims (6)

1. a washing machine magnetic cleaning method for same, cleaning particle is had between outer barrel in washing machine, it is characterized in that: cleaning particle is by rubber or plastics and magnetic metal material forms and density is less than water, outer barrel outer wall is equipped with calutron, in washing procedure or rinsing program, be provided with particle between interior outer barrel, form cleaning step S2 between inner and outer barrel wall of the forming step S1 of granulation mass, granulation mass and granulation mass breakdown procedure S3;
Wherein, described granulation mass forming step S1, comprises following operation:
S11: washing of drum type washing machine or rinsing inflow start, and calutron is energized;
S12: between interior outer barrel, particle is floating under the effect of water;
S13: floating particle is piled up at the outer barrel inwall that calutron is corresponding;
Wherein, described granulation mass cleaning step S2 comprises following operation:
S21: the sliding system action of calutron, electromagnetic block pumps along outer barrel outer wall;
S22: meanwhile, granulation mass pumps at outer barrel inwall adaptably with electromagnetic block;
S23: moving up and down simultaneously of granulation mass, carries out cleaning inner and outer barrel wall;
Wherein, described granulation mass breakdown procedure S3 comprises following operation:
S31: draining starts, calutron power-off, granulation mass is disintegrated, and particles float is between interior outer barrel;
S32: particle under gravity and flow action, is discharged to the drain pipe port that screen pack is housed in drainage procedure; Or in the groove of particle packing at the bottom of outer barrel, the discharge outlet place of groove is provided with screen pack.
2. washing machine magnetic cleaning method for same according to claim 1, is characterized in that: also comprise described cleaning particle particle joined between interior outer barrel from washing machine and add step S0.
3. washing machine magnetic cleaning method for same according to claim 1 and 2, is characterized in that: the diameter of described cleaning particle is greater than the through-hole diameter on inner barrel wall, and described cleaning particle contains magnetic metal core by rubber or plastics and forms.
4. washing machine magnetic cleaning method for same according to claim 3, is characterized in that: in described granulation mass cleaning step S2 between the height of water level of the reciprocating altitude range of granulation mass at the bottom of outer barrel and set by program.
5. a washing machine, comprise outer barrel, interior bucket, control system, transmission system, it is characterized in that: also comprise cleaning particle, cleaning particle is by rubber or plastic material and magnetic metal material forms and density is less than water, outer barrel outer wall is equipped with calutron, the instruction of calutron receiving control system, in washing procedure or rinsing program, particle forms granulation mass and cleans between interior outer barrel; Described calutron comprises electromagnet, step dynamic motor, belt, and electromagnet, under step moves motor effect, pumps along belt.
6. washing machine according to claim 5, is characterized in that: the diameter of described cleaning particle is greater than the through-hole diameter on inner barrel wall, and described outer barrel covers and has particle and add hand-hole, and drain pipe port is provided with the screen pack for reclaiming particle.
CN201110239270.4A 2011-08-19 2011-08-19 Washing machine magnetic cleaning method for same and washing machine Active CN102357494B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110239270.4A CN102357494B (en) 2011-08-19 2011-08-19 Washing machine magnetic cleaning method for same and washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201110239270.4A CN102357494B (en) 2011-08-19 2011-08-19 Washing machine magnetic cleaning method for same and washing machine

Publications (2)

Publication Number Publication Date
CN102357494A CN102357494A (en) 2012-02-22
CN102357494B true CN102357494B (en) 2016-03-30

Family

ID=45582906

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110239270.4A Active CN102357494B (en) 2011-08-19 2011-08-19 Washing machine magnetic cleaning method for same and washing machine

Country Status (1)

Country Link
CN (1) CN102357494B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103820974A (en) * 2012-11-16 2014-05-28 海尔集团公司 Automatic cleaning washer
CN106637817A (en) * 2013-12-02 2017-05-10 张太平 Scale removal washing machine
CN105525481B (en) * 2014-09-29 2019-10-01 青岛海尔滚筒洗衣机有限公司 A kind of automatically cleaning roller washing machine
CN106676819B (en) 2015-11-11 2019-07-30 青岛海尔洗衣机有限公司 A kind of automatically cleaning washing machine gets rid of water controling method
CN106676820B (en) * 2015-11-11 2019-10-01 青岛海尔洗衣机有限公司 A kind of automatically cleaning washing machine gets rid of water controling method
CN108568437A (en) * 2017-03-09 2018-09-25 青岛海尔洗衣机有限公司 A kind of cleaning ball and washing machine
CN107350237A (en) * 2017-07-13 2017-11-17 杭州科技职业技术学院 A kind of rotating cylinder quick descaling device using vacuole technology
CN107520671B (en) * 2017-07-13 2023-10-13 浙江工业职业技术学院 Multi-station floating balance abrasive particle magnetorheological cleaning system
CN107350236A (en) * 2017-07-13 2017-11-17 浙江工业大学之江学院 Adhesion greasy filth recovery system in a kind of oil-piping
CN107389485A (en) * 2017-07-13 2017-11-24 浙江工业大学之江学院 A kind of slag slurry mechanical seal end wear fatigue detecting skid structure
CN107327320B (en) * 2017-07-13 2023-11-17 浙江大学城市学院 Movable cleaning device for inner wall of lubricating oil pipeline of steam turbine
CN109957918B (en) * 2017-12-25 2022-08-19 青岛胶南海尔洗衣机有限公司 Washing tub cleaning method for laundry treating apparatus
CN108816990A (en) * 2018-08-23 2018-11-16 芜湖职业技术学院 Magnetic cleaning device and clean method
CN110052462A (en) * 2019-06-03 2019-07-26 陕西理工大学 The inner wall automatic rinser of the big chamber nonmetallic vessel of osculum
JP2021101902A (en) * 2019-12-25 2021-07-15 青島海爾洗衣机有限公司QingDao Haier Washing Machine Co.,Ltd. Washing machine
CN111359943A (en) * 2020-03-23 2020-07-03 杭州迪肤科技有限公司 Special plastic mechanical part cleaning equipment with complicated inner hole
CN112717698A (en) * 2020-12-09 2021-04-30 温州职业技术学院 Self-cleaning filter device
CN113123079A (en) * 2021-05-11 2021-07-16 江苏海狮机械股份有限公司 Particle recycling device in particle washing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201354426Y (en) * 2008-12-17 2009-12-02 任世斌 Washing ball
CN201358374Y (en) * 2008-12-16 2009-12-09 王鑫 Barrel set washing machine with inter-barrel cleaning function
CN201386211Y (en) * 2009-03-13 2010-01-20 王鑫 Rotary washing machine with barrel washing function
CN201454938U (en) * 2009-03-25 2010-05-12 河南省绿色电源新技术研究院 Negative-pressure oscillation washing machine
CN102061588A (en) * 2009-11-16 2011-05-18 海尔集团公司 Washing machine, washing method and washing barrel
CN102154801A (en) * 2011-01-11 2011-08-17 海尔集团公司 Water-saving cylinder washing machine and washing method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6440096A (en) * 1987-08-07 1989-02-10 Mitsubishi Electric Corp Drum type washing machine
US6612137B2 (en) * 2001-02-07 2003-09-02 Marc S. Smulowitz Magnetic/electromagnetic apparatus and process for laundering garments in an industrial, commercial or residential medium
JP3998449B2 (en) * 2001-10-12 2007-10-24 株式会社リコー Cleaning media cleaning device and cleaning media cleaning method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201358374Y (en) * 2008-12-16 2009-12-09 王鑫 Barrel set washing machine with inter-barrel cleaning function
CN201354426Y (en) * 2008-12-17 2009-12-02 任世斌 Washing ball
CN201386211Y (en) * 2009-03-13 2010-01-20 王鑫 Rotary washing machine with barrel washing function
CN201454938U (en) * 2009-03-25 2010-05-12 河南省绿色电源新技术研究院 Negative-pressure oscillation washing machine
CN102061588A (en) * 2009-11-16 2011-05-18 海尔集团公司 Washing machine, washing method and washing barrel
CN102154801A (en) * 2011-01-11 2011-08-17 海尔集团公司 Water-saving cylinder washing machine and washing method

Also Published As

Publication number Publication date
CN102357494A (en) 2012-02-22

Similar Documents

Publication Publication Date Title
CN102357494B (en) Washing machine magnetic cleaning method for same and washing machine
US10316448B2 (en) Washing method with polymer solid particles
CN102154801B (en) Water-saving drum washing machine and clothes washing method
US9404210B2 (en) Washing machine and washing method
CN105671864B (en) A kind of automatically cleaning roller washing machine
US20160201249A1 (en) Washing machine with circulated water treatment function and control method therefor
KR100857460B1 (en) Soft water washing machine capable for auto regenerating
CN103820975A (en) Washing machine and inter-tub cleaning method thereof
JP6749340B2 (en) Washing machine and control method
CN105839360B (en) A kind of drainer for washer, washing machine and control method
CN102733145A (en) Method for collecting and controlling cleaning particles of washing machine with self-cleaning function and washing machine
CN102471981A (en) Water-bearing household appliance having a filter device in the pumping-away section and storage tank
JP6802259B2 (en) Control method of washing machine with washing water circulation function and washing machine
CN102071551A (en) Washing machine
WO2013181901A1 (en) Self-cleaning washing machine and control method
CN109402951A (en) A kind of cleaning ball and washing machine of cleanable washing machine interlayer
JP6723352B2 (en) Controlling drainage and dehydration of automatic washing and washing machines
CN204251891U (en) A kind of full-automatic pulsator washing machine
CN1796646A (en) Washing methods of automatic washing machine and automatic washing of using the method
CN107177953B (en) Flocculation washing machine and control method
CN105200730A (en) Drainage device of washing machine and washing machine
CN210002105U (en) cleaning balls capable of cleaning interlayer of washing machine and washing machine
CN205775389U (en) A kind of device for washing machine
CN209098303U (en) Integrated form biological rotating disk sewage treatment equipment
CN201208245Y (en) Magnetic cleaning drying dishwasher

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160613

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: Qingdao Haier Drum Washing Machine Co., Ltd.

Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China

Patentee before: haier group corporation

Patentee before: Qingdao Haier Drum Washing Machine Co., Ltd.