CN107558093A - Panel assembly, washing machine and cooling method - Google Patents

Panel assembly, washing machine and cooling method Download PDF

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Publication number
CN107558093A
CN107558093A CN201710684210.0A CN201710684210A CN107558093A CN 107558093 A CN107558093 A CN 107558093A CN 201710684210 A CN201710684210 A CN 201710684210A CN 107558093 A CN107558093 A CN 107558093A
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CN
China
Prior art keywords
heat
plate body
panel assembly
body structure
washing machine
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.)
Granted
Application number
CN201710684210.0A
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Chinese (zh)
Other versions
CN107558093B (en
Inventor
刘佳
魏晓磊
张贤
胡威海
熊瑞
欧土盛
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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 Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201710684210.0A priority Critical patent/CN107558093B/en
Publication of CN107558093A publication Critical patent/CN107558093A/en
Application granted granted Critical
Publication of CN107558093B publication Critical patent/CN107558093B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

The invention provides a panel assembly, a washing machine and a cooling method. Panel assembly, panel assembly is used for on the washing machine, includes: a plate body structure; and the heat exchange system is arranged on the plate body structure and is used for carrying out heat exchange with the plate body structure so as to reduce the temperature of the plate body structure. The plate body structure is provided with the heat exchange system, heat exchange is carried out with the plate body structure through the heat exchange system so as to reduce the temperature of the plate body structure, and the problem that the temperature of the panel structure rises quickly is effectively prevented. Thereby making the washing machine with the panel assembly safer and more reliable to use.

Description

Panel assembly, washing machine and the method for cooling
Technical field
The present invention relates to washing machine technology field, in particular to a kind of panel assembly, washing machine and the side of cooling Method.
Background technology
In the prior art, a dry body washer is washed to dry clothing using hot blast.While drying, have not Few heat is dispersed on the panel of washing-drying integral machine.Because panel is to be made of metal, the temperature of panel is often caused to increase Quickly, the damage of the electric elements adjacent with panel body is easily caused, reduces the situation in its life-span.And panel body is for a long time in height Operation in warm environment, the personal safety in life-span and user for washing-drying integral machine, which exists, to be threatened, i.e., using of the prior art The set-up mode of the panel of washing machine, the problem of easily causing personal safety hidden danger.
The content of the invention
It is a primary object of the present invention to provide a kind of panel assembly, washing machine and the method for cooling, to solve existing skill The panel temperature of washing machine rises the problem of fast in art.
To achieve these goals, according to an aspect of the invention, there is provided a kind of panel assembly, panel assembly are used for On washing machine, including:Plate body structure;Heat-exchange system, heat-exchange system are arranged on plate body structure, and heat-exchange system is used for and plate body knot Structure carries out heat exchange to reduce the temperature of plate body structure.
Further, heat-exchange system includes:Heat exchanging pipe, heat exchanging pipe are attached on the surface of plate body structure, heat exchanger tube Road has entrance point and the port of export, and entrance point is used to introduce heat transferring medium, and the port of export discharges the heat transferring medium in heat exchanging pipe.
Further, heat-exchange system also includes:Valve body, valve body are arranged on heat exchanging pipe, and valve body is used to control entrance point It is turned on and off.
Further, heat-exchange system also includes:Draining pump, draining pump are arranged on heat exchanging pipe, and draining pump is used to change Heat transferring medium discharge in pipe line.
Further, offer avoidance through hole in the middle part of plate body structure, heat exchanging pipe be arranged at avoid the edge of through hole with Between the outer edge of plate body structure.
Further, avoid through hole it is rounded, it is oval or square in one kind, heat exchanging pipe along avoid through hole edge Set to form cyclic structure.
Further, heat exchanging pipe is spirally laid on the surface of plate body structure.
Further, panel assembly includes:Locating fastener, locating fastener are connected with plate body structure, and locating fastener is used for Heat exchanging pipe is fixed on plate body structure.
According to another aspect of the present invention, there is provided a kind of washing machine, including panel assembly, panel assembly are above-mentioned face Board component.
Further, washing machine includes:Cabinet, cabinet have working chamber, communicating valve and discharge pipe line are provided with cabinet, Entrance point of the communicating valve respectively with working chamber and the heat exchanging pipe of heat-exchange system is connected, and discharge pipe line is used in working chamber Sewage is discharged, and the port of export of heat exchanging pipe is connected with discharge pipe line.
Further, washing machine includes:Temperature-sensitive bag, temperature-sensitive bag are arranged in cabinet, and temperature-sensitive bag is used to monitor plate body structure Temperature;Controller, controller are arranged in cabinet, and controller electrically connects with the valve body and temperature-sensitive bag of heat exchanging pipe, works as temperature-sensitive When bag monitors that the temperature of plate body structure reaches preset value, controller opens or closes according to preset value application valve body.
Further, washing machine includes:Instrument board, it is arranged on cabinet, the part heat exchanging pipe and instrument of heat-exchange system Plate is disposed adjacently so that instrument board carries out heat exchange with heat exchanging pipe.
According to another aspect of the present invention, there is provided a kind of method of cooling, method are used to enter above-mentioned panel assembly Row cooling, comprises the following steps:Start washing machine and carry out washing and cleaning operation, open the valve body being arranged on panel assembly, make the external world Running water be passed through in the heat exchanging pipe of heat-exchange system the instrument board of plate body structure and washing machine cooled;Washed when being arranged at When temperature-sensitive bag on clothing machine detects that the temperature of plate body structure is reduced to preset value, controller control valve body on washing machine is arranged at Close.
Apply the technical scheme of the present invention, heat-exchange system is set on plate body structure, pass through heat-exchange system and plate body structure Heat exchange is carried out to reduce the temperature of plate body structure, the temperature that effectively prevent panel construction rises the problem of fast.So that It must be used with the washing machine of the panel assembly more safe and reliable.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing a further understanding of the present invention, and of the invention shows Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation at the first visual angle of the embodiment of the panel assembly according to the present invention;
Fig. 2 shows the structural representation at the second visual angle of the embodiment of panel assembly in Fig. 1;
Fig. 3 shows the structural representation of the embodiment of the instrument board of the washing machine according to the present invention.
Wherein, above-mentioned accompanying drawing marks including the following drawings:
10th, plate body structure;11st, through hole is avoided;
20th, heat-exchange system;21st, heat exchanging pipe;211st, entrance point;212nd, the port of export;22nd, valve body;23rd, draining pump.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first ", " second " in the description and claims of this application and accompanying drawing etc. It is for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that the art so used Language can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except illustrating herein Or the order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that Cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment need not limit In those steps or unit for clearly listing, but may include not list clearly or for these processes, method, production The intrinsic other steps of product or equipment or unit.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction " Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and " in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and And respective explanations are made to the relative description in space used herein above.
Now, the illustrative embodiments according to the application are more fully described with reference to the accompanying drawings.However, these are exemplary Embodiment can be implemented by many different forms, and should not be construed to be limited solely to embodiment party set forth herein Formula.It should be appreciated that thesing embodiments are provided so that disclosure herein is thoroughly and complete, and these are shown The design of example property embodiment is fully conveyed to those of ordinary skill in the art, in the accompanying drawings, for the sake of clarity, it is possible to expand The big thickness of layer and region, and make identical device is presented with like reference characters, thus they are retouched by omitting State.
With reference to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, there is provided a kind of panel assembly.
Specifically, as shown in figure 1, the panel assembly is used for washing machine, the panel assembly includes plate body structure 10 and changed Hot systems 20.Heat-exchange system 20 is arranged on plate body structure 10, heat-exchange system 20 be used for plate body structure 10 carry out heat exchange with Reduce the temperature of plate body structure 10.
In the present embodiment, heat-exchange system is set on plate body structure, hot friendship is carried out by heat-exchange system and plate body structure Change to reduce the temperature of plate body structure, effectively prevent panel construction temperature rise it is fast the problem of.Should so that having The washing machine of panel assembly uses more safe and reliable.
Heat-exchange system 20 includes heat exchanging pipe 21.Heat exchanging pipe 21 is attached on the surface of plate body structure 10, heat exchanging pipe 21 have entrance point 211 and the port of export 212, and entrance point 211 is used to introduce heat transferring medium, and the port of export 212 is by heat exchanging pipe 21 Heat transferring medium discharge.The temperature of plate body structure 10 can be effectively reduced by so setting, while add the use of user Experience, wherein, heat transferring medium can be with running water, you can be cooled using the heat exchange mode of water cooling to plate body structure 10.
Wherein, heat-exchange system 20 also includes valve body 22 and draining pump 23.Valve body 22 is arranged on heat exchanging pipe 21, valve body 22 For controlling entrance point 211 to be turned on and off.Draining pump 23 is arranged on heat exchanging pipe 21, and draining pump 23 is used for heat exchanging pipe Heat transferring medium discharge in 21.The heat exchange efficiency of the heat-exchange system 20 can effectively be increased by so setting.
, can be at the middle part of plate body structure 10 in order to avoid the miscellaneous part of the plate body structure 10 and washing machine interferes Open up and avoid through hole 11, heat exchanging pipe 21 is arranged between the outer edge at the edge and plate body structure 10 that avoid through hole 11.Wherein, In order to improve the practicality of the plate body structure 10, can by avoid through hole 11 be arranged to it is circular, oval or square in one kind. Heat exchanging pipe 21 is set to form cyclic structure along the edge for avoiding through hole 11.Heat exchanging pipe and plate body can be increased by so setting The contact area of structure 10, it further increasing the heat exchange efficiency of heat exchanging pipe.
Preferably, in order to further improve the heat exchange efficiency of heat exchanging pipe, heat exchanging pipe 21 can be arranged to spiral Shape is laid on the surface of plate body structure 10.
In order to improve the installation reliability of heat exchanging pipe, locating fastener can be set on panel assembly, locating fastener with Plate body structure 10 is connected, and locating fastener is used to heat exchanging pipe 21 being fixed on plate body structure 10.Preferably, for convenience more Heat exchanging pipe 21 is changed, heat exchanging pipe 21 can be arranged to dismountable form.
Panel assembly in above-described embodiment can be also used for washing machine technology field, i.e., according to the opposing party of the present invention A kind of face, there is provided washing machine.The washing machine includes panel assembly, and panel assembly is the panel assembly in above-described embodiment.Tool Body, the panel assembly includes plate body structure 10 and heat-exchange system 20.Heat-exchange system 20 is arranged on plate body structure 10, heat exchange system System 20 is used to carry out heat exchange with plate body structure 10 to reduce the temperature of plate body structure 10.
In the present embodiment, the washing machine is integrated dry cleaner, and heat-exchange system is set on plate body structure, is by exchanging heat System carries out heat exchange to reduce the temperature of plate body structure with plate body structure, and the temperature that effectively prevent panel construction rises soon Problem.So that the washing machine with the panel assembly use it is more safe and reliable.
Further, washing machine includes cabinet, and cabinet has working chamber, communicating valve and discharge pipe line are provided with cabinet, Entrance point 211 of the communicating valve respectively with working chamber and the heat exchanging pipe 21 of heat-exchange system 20 is connected, and discharge pipe line is used for work Make the sewage discharge in chamber, the port of export 212 of heat exchanging pipe 21 is connected with discharge pipe line.Effectively increase the washing machine Practicality.
Specifically, washing-drying integral machine is dried by the way of heat is dried using the principle of heat exchange.Thermal source produces High temperature air, air flow is driven using blower fan, so as to reach wet clothes moisture evaporation, reaches the effect of drying.Due to drying Machine operationally, inside air channel has the gas of high temperature, and the air duct surfaces heat insulating effect of washing drying device is general, so inside air channel Temperature can be largely dispersed into due to heat exchange outside air channel, because air channel has greatly close to top cover and front panel, these positions The plastic parts and electric elements of amount, substantial amounts of plastic parts and electric elements can largely effect in the environment of high temperature is chronically at The life-span of washing machine and security appliance.
The instrument board 30 of washing machine is arranged on cabinet, and the part heat exchanging pipe 21 of heat-exchange system 20 is adjacent with instrument board 30 Ground is set so that instrument board 30 carries out heat exchange with heat exchanging pipe 21.Operation such as the instrument board 30 in Fig. 3 at A for washing machine is revolved Button installation region, it further increasing the practicality of the panel assembly.
In the present embodiment, washing machine includes temperature-sensitive bag and controller.Temperature-sensitive bag is arranged in cabinet, and temperature-sensitive bag is used to supervise Survey the temperature of plate body structure 10.Controller is arranged in cabinet, and the valve body 22 and temperature-sensitive bag of controller and heat exchanging pipe 21 are electrically connected Connect, when temperature-sensitive bag monitors that the temperature of plate body structure 10 reaches preset value, controller is opened according to preset value application valve body 22 Or close.
Specifically, when washing drying device carries out drying pattern, hot blast constantly flows in air channel, now passes through valve body Constantly to drying air channel return air inlet at enter running water, because tap water temperature is much lower compared with wind duct temperature, because heat exchange reaches To the effect of cooling.Meanwhile cooling pipe of the branched pipe into washing machine front panel and instrument board is connect by same water valve Road water flowing, start when water flowing process starts for heating until drying continues water flowing after terminating, until temperature drops to safety in air channel In the range of detected by the temperature-sensitive bag of washing machine internal, now the master control borad of controller sends the signal of valve body, shutoff valve Body, door lock is opened, so as to realize whole temperature-fall period.
It control for the temperature of panel, can be controlled by regulation valve body and draining pump, can select suitably to flow Amount, to ensure that while cooling drying efficiency can not be influenceed.
Than that described above, it is also necessary to which explanation is " one embodiment ", " another implementation spoken of in this manual Example ", " embodiment " etc., refer to that the specific features, structure or the feature that combine embodiment description are included in the application summary Property description at least one embodiment in.It is not necessarily to refer to same reality that statement of the same race, which occur, in multiple places in the description Apply example.Furthermore, it is understood that when describing a specific features, structure or feature with reference to any embodiment, what is advocated is knot Other embodiment is closed to realize that this feature, structure or feature are also fallen within the scope of the present invention.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment Point, it may refer to the associated description of other embodiment.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (13)

1. a kind of panel assembly, the panel assembly is used for washing machine, it is characterised in that including:
Plate body structure (10);
Heat-exchange system (20), the heat-exchange system (20) are arranged on the plate body structure (10), and the heat-exchange system (20) is used In carrying out heat exchange with the plate body structure (10) to reduce the temperature of the plate body structure (10).
2. panel assembly according to claim 1, it is characterised in that the heat-exchange system (20) includes:
Heat exchanging pipe (21), the heat exchanging pipe (21) are attached on the surface of the plate body structure (10), the heat exchanging pipe (21) there is entrance point (211) and the port of export (212), the entrance point (211) is used to introduce heat transferring medium, the port of export (212) heat transferring medium in the heat exchanging pipe (21) is discharged.
3. panel assembly according to claim 2, it is characterised in that the heat-exchange system (20) also includes:
Valve body (22), the valve body (22) are arranged on the heat exchanging pipe (21), the valve body (22) be used to controlling it is described enter Mouth end (211) is turned on and off.
4. panel assembly according to claim 3, it is characterised in that the heat-exchange system (20) also includes:
Draining pump (23), the draining pump (23) are arranged on the heat exchanging pipe (21), and the draining pump (23) is used for institute State the heat transferring medium discharge in heat exchanging pipe (21).
5. panel assembly according to claim 2, it is characterised in that offer avoidance in the middle part of the plate body structure (10) Through hole (11), the heat exchanging pipe (21) are arranged at the outside at the edge and the plate body structure (10) of the avoidance through hole (11) Between.
6. panel assembly according to claim 5, it is characterised in that it is described avoidance through hole (11) it is rounded, it is oval or One kind in square, edge of the heat exchanging pipe (21) along the avoidance through hole (11) are set to form cyclic structure.
7. panel assembly according to claim 2, it is characterised in that the heat exchanging pipe (21) is spirally laid on On the surface of the plate body structure (10).
8. panel assembly according to claim 2, it is characterised in that the panel assembly includes:
Locating fastener, the locating fastener are connected with the plate body structure (10), and the locating fastener is used for the heat exchange Pipeline (21) is fixed on the plate body structure (10).
9. a kind of washing machine, including panel assembly, it is characterised in that the panel assembly is any one of claim 1 to 8 institute The panel assembly stated.
10. washing machine according to claim 9, it is characterised in that the washing machine includes:
Cabinet, cabinet have working chamber, are provided with communicating valve and discharge pipe line in the cabinet, the communicating valve respectively with it is described Working chamber is connected with the entrance point (211) of the heat exchanging pipe (21) of the heat-exchange system (20), and the discharge pipe line is used for will Sewage discharge in the working chamber, the port of export (212) of the heat exchanging pipe (21) are connected with the discharge pipe line.
11. washing machine according to claim 10, it is characterised in that the washing machine includes:
Temperature-sensitive bag, the temperature-sensitive bag are arranged in the cabinet, and the temperature-sensitive bag is used for the temperature for monitoring the plate body structure (10) Degree;
Controller, the controller are arranged in the cabinet, the valve body (22) of the controller and the heat exchanging pipe (21) Electrically connected with the temperature-sensitive bag, it is described when the temperature-sensitive bag monitors that the temperature of the plate body structure (10) reaches preset value Controller controls the valve body (22) to open or close according to the preset value.
12. washing machine according to claim 10, it is characterised in that the washing machine includes:
Instrument board (30), is arranged on the cabinet, part heat exchanging pipe (21) and the instrument of the heat-exchange system (20) Plate (30) is disposed adjacently so that the instrument board (30) carries out heat exchange with the heat exchanging pipe (21).
13. a kind of method of cooling, methods described is used to drop the panel assembly any one of claim 1 to 8 Temperature, it is characterised in that comprise the following steps:
Start washing machine and carry out washing and cleaning operation, open the valve body (22) being arranged on panel assembly, be passed through the running water in the external world The instrument board (30) of the plate body structure (10) and the washing machine is entered in the heat exchanging pipe (21) of the heat-exchange system (20) Row cooling;
When the temperature-sensitive bag being arranged on the washing machine detects that the temperature of the plate body structure (10) is reduced to preset value, if Being placed in controller on the washing machine controls the valve body (22) to close.
CN201710684210.0A 2017-08-10 2017-08-10 panel assembly, washing machine and cooling method Expired - Fee Related CN107558093B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710684210.0A CN107558093B (en) 2017-08-10 2017-08-10 panel assembly, washing machine and cooling method

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Application Number Priority Date Filing Date Title
CN201710684210.0A CN107558093B (en) 2017-08-10 2017-08-10 panel assembly, washing machine and cooling method

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CN107558093A true CN107558093A (en) 2018-01-09
CN107558093B CN107558093B (en) 2019-10-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112376204A (en) * 2020-11-25 2021-02-19 珠海格力电器股份有限公司 Washing and drying machine and control method of temperature of machine body of washing and drying machine
CN112626814A (en) * 2020-11-16 2021-04-09 珠海格力电器股份有限公司 Door cooling device of clothes treatment equipment, control method and clothes treatment equipment
CN114575092A (en) * 2022-02-16 2022-06-03 珠海格力电器股份有限公司 Washing and drying machine and control method thereof

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Publication number Priority date Publication date Assignee Title
GB2072323A (en) * 1980-03-19 1981-09-30 Anderson B M Heat Exchange Apparatus for the Collection and/or Emission of Heat
JP2004329774A (en) * 2003-05-12 2004-11-25 Tosei Denki Kk Drier
JP3605067B2 (en) * 2001-11-14 2004-12-22 三洋電機株式会社 Drum type washer / dryer
CN101086131A (en) * 2006-06-06 2007-12-12 南京乐金熊猫电器有限公司 Drying machine
JP4750066B2 (en) * 2007-03-29 2011-08-17 シャープ株式会社 Washing and drying machine
WO2014126956A1 (en) * 2013-02-12 2014-08-21 B/E Aerospace, Inc. Active cooling panel for a vehicle galley

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072323A (en) * 1980-03-19 1981-09-30 Anderson B M Heat Exchange Apparatus for the Collection and/or Emission of Heat
JP3605067B2 (en) * 2001-11-14 2004-12-22 三洋電機株式会社 Drum type washer / dryer
JP2004329774A (en) * 2003-05-12 2004-11-25 Tosei Denki Kk Drier
CN101086131A (en) * 2006-06-06 2007-12-12 南京乐金熊猫电器有限公司 Drying machine
JP4750066B2 (en) * 2007-03-29 2011-08-17 シャープ株式会社 Washing and drying machine
WO2014126956A1 (en) * 2013-02-12 2014-08-21 B/E Aerospace, Inc. Active cooling panel for a vehicle galley

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112626814A (en) * 2020-11-16 2021-04-09 珠海格力电器股份有限公司 Door cooling device of clothes treatment equipment, control method and clothes treatment equipment
CN112626814B (en) * 2020-11-16 2023-12-22 珠海格力电器股份有限公司 Door cooling device of clothes treatment equipment, control method and clothes treatment equipment
CN112376204A (en) * 2020-11-25 2021-02-19 珠海格力电器股份有限公司 Washing and drying machine and control method of temperature of machine body of washing and drying machine
CN114575092A (en) * 2022-02-16 2022-06-03 珠海格力电器股份有限公司 Washing and drying machine and control method thereof
CN114575092B (en) * 2022-02-16 2023-02-17 珠海格力电器股份有限公司 Washing and drying machine and control method thereof

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Granted publication date: 20191022