CN101896660B - Household appliance comprising a first air conduit and a heat pump - Google Patents
Household appliance comprising a first air conduit and a heat pump Download PDFInfo
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- CN101896660B CN101896660B CN2008801202126A CN200880120212A CN101896660B CN 101896660 B CN101896660 B CN 101896660B CN 2008801202126 A CN2008801202126 A CN 2008801202126A CN 200880120212 A CN200880120212 A CN 200880120212A CN 101896660 B CN101896660 B CN 101896660B
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- heat
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- household electrical
- airduct
- air
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/206—Heat pump arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/24—Condensing arrangements
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F58/00—Domestic laundry dryers
- D06F58/20—General details of domestic laundry dryers
- D06F58/26—Heating arrangements, e.g. gas heating equipment
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- Textile Engineering (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a household appliance (1) comprising a housing (2), a drying chamber (3) for drying wet articles (6) therein, a first air conduit (7) for guiding process air drawn into said housing (2) to dry the articles (6) and a heat pump (12, 13, 14, 15, 16, 17), said heat pump (12, 13, 14, 15, 16, 17) comprising a heat sink (14) for transferring heat into said heat pump (12, 13, 14, 15, 16, 17), a heat source (13) coupled to said first air conduit (7) for transferring heat from said heat pump (12, 13, 14, 15, 16, 17) into the process air, and a heat transfer device (12, 15, 16, 17) for transferring heat from said heat sink (14) to said heat source (13). The heat sink (14) is coupled to a second air conduit (18) for guiding secondary air drawn into said housing (2), for transferring heat from the secondary air into said heat pump (12, 13, 14, 15, 16, 17).
Description
Technical field
The present invention relates to household electrical appliance, these household electrical appliance comprise shell, be used to dry article wet in it drying chamber, be used for the process air guiding is entered first airduct and the heat pump that described shell is dried wet article (wet article), described heat pump comprises and is used for heat transfer unit (HTU) that heat is sent to the heat sink of described heat pump, will will be sent to the thermal source of described process air and will be used for the heat from described heat sink is sent to described thermal source from the heat of described heat pump with described first airduct being used for of coupling.
Background technology
Included and the relevant summary of day disclosure JP 2004089415A in the abridgments of specifications database according to Japan, such household electrical appliance are conspicuous.
According to EP 0 467 188 B1, the household electrical appliance that are used to dry wet article and comprise heat pump are conspicuous.The document comprises and is configured to be used for the detailed description of oven dry as the household electrical appliance of the dryer of the article of wet wash (laundry).The document relates to many details of these household electrical appliance, and these details are essential when making or using this electrical equipment or are favourable at least.Therefore, be incorporated herein by reference at this full content the document.
According to document WO 2006/029953 A1, DE 197 38 735 C2, EP 1 672 294 A2 and EP 1 672 295 A2, the prior art of household electrical appliance is conspicuous, wherein document WO2006/029953A1 is with respect to drying and washing machine or washing machine of combining and dryer, specifically described dish-washing machine, document D E 197 38 735 C2 disclose the household electrical appliance with dissimilar heat pumps, and document EP 1 672 294 A2 and EP 1 672 295 A2 the two air-conditioning equipment with cooling circuit is disclosed, this cooling circuit is similar to some heat pump of considering in some respects herein.
Wet article in the oven dry household electrical appliance require the moisture on these wet article of evaporation, and utilize the flowing of process air (process air) after the heating to pass away the steam that forms thus.This process air that is loaded with steam can be discharged from household electrical appliance, perhaps experiences condensation process comes to recover liquid form from steam moisture, to be used for collection and to handle.This condensation process requires to cool off this process air subsequently, extracts heat thus.This heat can be discharged from household electrical appliance once more simply.Yet, low for energy consumption is remained, expectation be to recover above-mentioned heat at least to a certain extent.For this reason, household electrical appliance have been improved to and have comprised heat pump, and this heat pump is used for recovering the energy obtained from process air.For this reason, this heat pump comprises heat sink (heat sink), and this heat sink is used to and utilizes the moisture that comprises in this heat sink to come the cooling operations air, extracts heat from process air thus.In addition, this heat pump comprises thermal source, this thermal source be used to process air is delivered to pick up moisture on the object that will be dried before, heat this process air.At last, this heat pump comprises heat transfer unit (HTU), is used for the heat from heat sink is sent to thermal source, and the expectation of finishing thus heat recovers.
In the also known typical heat pump according to above-mentioned document, heat transfer unit (HTU) comprises the heat transfer loop, and this heat transfer loop comprises heat transfer agent or cold-producing medium, and this heat transfer agent or cold-producing medium circulate repeatedly by heat sink and thermal source.Come vaporized heat transfer fluid heat sink by utilization from the heat that the process air that flows through extracts, and on thermal source, compress this heat-transfer fluid subsequently and heat is discharged back process air from this heat-transfer fluid, operate heat pump.The above-mentioned release of heat is made the heat-transfer fluid of gasification condense or liquefies.Guide heat-transfer fluid after the liquefaction reducing its interior pressure by nozzle, and the heat-transfer fluid after this liquefaction is guided the resorption thermic devices at last, picks up to carry out another time evaporation and heat.Except according to the above-mentioned household electrical appliance of knowing about the summary of JP 2,004 089 415 A, process air is maintained in the circuit or process air loop of complete closure usually, wherein guides process air by open loop.Although described in EP 0 467 188 B1, at least occasionally the process air loop of open closed be favourable or or even require, but relevant IEC standard-required dryer keeps below any moisture of 20% of existing total moisture and reveals, and this dryer is required and recovers moisture by condensing.Include time cycle that problem that this household electrical appliance of heat pump still can run into suitable needs such as laundry loadings that are high manufacturing cost, oven dry grow relatively and the possible environmental hazard of in this household electrical appliance, using that heat-transfer fluid brought.In order to reduce characteristic or inflammability and main these disasters relevant with depletion of the ozone layer or greenhouse effects that are used to strengthen these compounds, the chlorohydrocarbon that the past is often used is owing to relevant law and in the current use that is under an embargo.In order to carry out quantitative estimation to the greenhouse effects possibility of cold-producing medium commonly used, the reference coefficient that is called as " global warming potential " (hereinafter, abbreviate " GWP coefficient " as) be assigned to each cold-producing medium known or commonly used usually, wherein the GWP coefficient of carbon dioxide or R744 is defined as equaling 1.
Only be heated to when surpassing any normal ambient temperature, be preferably when being heated to above 60 ℃ temperature, utilize this process air to come to pick up moisture and be only effectively from the object that will be dried at process air.Because evaporation process, this temperature will drop to the temperature of low spot a little.In any case, the porch of evaporation heat interchanger approximately or be higher than 35 ℃ temperature may give use heat-transfer fluid as mentioned above and according to refrigerating field in the heat pump of known practical knowledge design bring following problems, compressor and cryogenic fluid (being collectively referred to as " heat-transfer fluid " in this article) in the promptly conventional refrigeration practice are not suitable for above-mentioned purpose.Considered to realize remedying (relief) by being returned to cold-producing medium with very high critical-temperature, for confirmation they up to the function under 60 ℃ the operating temperature, but up to now, also do not have complete analysis and instruct available.Be used to and realized that other measures remedy are by discharging the process air of heat with colder air exchange the time, and comprise that the additional heat interchanger takes away a large amount of heats by suitable additional heat interchanger from heat-transfer fluid, from described electrical equipment, discharge a large amount of heats.Yet more complexity and cost have been introduced in all these measures.
At H.Buchwald, J.Hellmann, H.
Listed the details of the GWP coefficient of generally well-known refrigeration compound in the second edition of the textbook of publishing in August, 2000 with C.Meurer " Solkane-Product Manual Refrigeration and Air-ConditioningTechnology ".As for the quantification classification of aspect hanging down the inflammability of being explained in the inflammability classification coefficient, cold-producing medium being carried out at cold-producing medium, with reference to the 4.2nd edition the European standard document IEC60335-2-40 " Household and Similar Electrical Appliances-Safety-particularRequirements for Electrical heat Pumps; Air-Conditioners and Dehumidifiers " that publish in July, 2005, appendix BB-shows BB.1.The relevant information of cold-producing medium or heat-transfer fluid also can obtain in Unite States Standard ASHRAE 34, comprises particular term and the safety of these compounds and the classification of toxicity of these compounds.
Disclosed dryer has the open airduct that is used for process air in aforesaid Japanese patent abstract, this process air is introduced in the dryer, thermal source heating by heat pump is guided through the clothing that will be dried, and rolls in cylinder (rotating drum).Subsequently, process air is guided through the heat sink of heat pump, is used for the cooling operations air and recovers moisture by condensing from process air.At last, process air is discharged dryer.Although this dryer provides the part of the moisture that will recover with liquid form that extracts at least from this clothing, this dryer requires operator's action to handle the liquid that is recovered.In any case this is unusual, and may be that the operator who is unaccustomed to pay close attention to the processing of any residue of producing in the general drying and washing machine with open process air airduct does not expect.Except the problem of above-mentioned treat liquid residue, disclosed dryer will require special-purpose cotton linters filter to remove fibrous or dirt shape residue from the process air of discharging laundry wheel in this Japanese patent abstract, be known as velveteen usually.After by the oven dry of process air stream, common washing clothes always discharges a certain amount of velveteen, velveteen will be deposited on any guiding structural that process air passed through or other assemblies that carries this velveteen, and simultaneously owing to the moisture from this process air precipitation sticks to the there.Block heat sink for fear of velveteen, special-purpose cotton linters filter need be placed on the upstream of heat sink, so that catch velveteen as much as possible, and this filter also needs the operator to participate in removing to be collected in velveteen there.This will cause even reduce more the value of this dryer.
Summary of the invention
Correspondingly, an object of the present invention is to specifically describe the household electrical appliance that define in the foreword chapters and sections of this paper, these household electrical appliance have heat pump, and this heat pump is specified as and makes it possible to alleviate the problems referred to above, and allow with suitable expense drying article quickly.Particularly, an object of the present invention is to specifically describe the household electrical appliance that are defined as above, these household electrical appliance avoid producing coagulating liq at least certain degree.Similarly, an object of the present invention is to specifically describe household electrical appliance as defined above, these household electrical appliance needing to avoid cotton-wool to filter.
The invention provides the technical scheme of specific implementation in the household electrical appliance that in as independent claims, limit.The preferred embodiments of the present invention limit in the dependent claims.
According to the present invention, a kind of household electrical appliance have been specifically described, these household electrical appliance comprise shell, be used to dry article wet in it drying chamber, be used for the process air guiding is entered first airduct and the heat pump that described shell is dried wet article, described heat pump comprises the heat sink that is used for heat is sent to described heat pump, the thermal source that couples with described first airduct, be used for being sent to described process air from the heat of described heat pump, and the heat transfer unit (HTU) that is used for the heat from described heat sink is sent to described thermal source.Wherein, described heat sink couples with second airduct that is used for auxiliary air is guided into described shell, is used for the heat from described auxiliary air is sent to described heat pump.
The present invention benefits from the following fact: extract heat from the auxiliary air of obtaining from the external environment of household electrical appliance, usually will cause than extracting the coagulating liq that heat produces much less from process air, this process air is loaded with specially and is in or near the moisture of heap(ed) capacity.
In addition, can obtain benefit from the following fact: it is cold that the air ratio of introducing household electrical appliance from the external environment of household electrical appliance is discharged the process air of the drying chamber with the article that will be dried, usually, this will carry at least a portion and be loaded into heat on this process air by heating before process air enters drying chamber.Correspondingly, the invention provides the qualification heat leak of household electrical appliance, this limit heat leak with balance because thermokinetics philosophy and the too much heat that generates by heat pump.Thus, the present invention helps stablizing the process of drying article by utilizing from the household electrical appliance heat radiation to carry out balance to generate too much heat household electrical appliance.In the Main Stage of drying course, this is very important, has wherein finished any initial heating to household electrical appliance and assembly thereof, and drying course is supposed to move in quasi-static mode.
In addition, after only once flowing through drying chamber and flowing around the article that will dry, process air is discharged from household electrical appliance, and may not need any other the active functional unit through household electrical appliance.Correspondingly, there is not the obstruction danger of considering that causes owing to velveteen, and therefore, do not need special-purpose cotton linters filter usually.Be placed under the situation in drying chamber downstream possible something unexpected happened at the hair-dryer that is used to drive process air.Yet what can expect is that the turbulent flow of process air is by this hair-dryer, and this turbulent flow will prevent the precipitation of velveteen in hair-dryer at least to a certain extent.
According to a preferred embodiment of the invention, described heat transfer unit (HTU) comprises the heat transfer loop, and this heat transfer loop comprises the heat-transfer fluid that will cycle through described heat transfer loop; Compressor is used to compress described heat-transfer fluid and makes described heat-transfer fluid cycle through described heat transfer loop; And nozzle, described heat-transfer fluid is used to decompress.In addition, described heat sink is provided to as evaporimeter, be used for the heat from described process air being sent to described heat-transfer fluid by evaporating described heat-transfer fluid, and described thermal source is provided to as liquefier, is used for by the described heat-transfer fluid that liquefies the heat from described heat-transfer fluid being sent to described process air.Correspondingly, this heat pump is known compression type heat pump, its be used for cooling off with freezing household electrical appliance in especially known, this fact makes the heat-transfer fluid that uses in this heat pump be designated as " cold-producing medium " usually.
According to the further improved preferred embodiment as above preferred embodiment, described heat-transfer fluid comprises the fluorinated hydrocarbons compound.Particularly, described heat-transfer fluid is selected from the group that comprises refrigerant R134a, R152a, R290, R407C and R410A.
R134a and R152a are monomer fluorinated hydrocarbons compounds, and R407C and R410A are the mixtures of this compound.It is alkane or simple hydrocarbon that R290 or its substitute name propane.It has relevant physical characteristic, and this physical characteristic makes the application that it is very suitable for considering herein.Particularly, the GWP coefficient that propane had is 3, is 1300 to compare with the GWP coefficient of traditional heat-transfer fluid R134a, and this GWP coefficient 3 is very low.Certainly, use the privacy protection that the propane that is highly combustible will require system is prevented fire.For inflammability level and relative low GWP coefficient in conjunction with reduction a little, R152a is particularly preferred selection.
According to another preferred embodiment of the invention, described drying chamber is a rotary drum.
According to another preferred embodiment of the present invention, described household electrical appliance are configured to be used to dry the dryer of wet washing clothes.Consideration is according to other embodiment of household electrical appliance of the present invention, that is, and and as being used to wash and dry the drying and washing machine of washing clothes or the embodiment of dish-washing machine.
According to another preferred embodiment of the present invention, described second airduct and described heat transfer unit (HTU) couple, and the heat that is used for distributing from described heat transfer unit (HTU) is sent to described auxiliary air.This embodiment has utilized the existence of cold auxiliary air, and the assembly that this cold auxiliary air is used to the heat pump that drives thermodynamic process provides cooling, and therefore is used for importing the necessary additional-energy of this process of driving.For this reason, more preferably, described second airduct is arranged and makes auxiliary air pass through described heat sink before passing through described drive unit.Another preferred, described first airduct and described second airduct are combined into single blast pipe, are used for described process air and described auxiliary air are discharged described shell.In this embodiment, described blast pipe can comprise single hair-dryer, is used to discharge described process air and described auxiliary air.
According to another preferred embodiment of the present invention, described shell is made air flow into described shell by opening, and described second airduct has the air inlet that is arranged in the described shell.When the air inlet of second airduct was arranged in the enclosure, the air that can pick up some heats that the assembly (parts that comprise drying chamber, thermal source and first airduct) from household electrical appliance distributes was inhaled into second airduct, to be cooled off by heat sink.Because heat that heat sink extracted turns back to drying course by thermal source, help recovering the heat that distributed so this heat returns, and correspondingly improve the efficient of drying course.In addition, the heat that is distributed owing to the air utilization in the shell obtains preheating to a certain degree, so when household electrical appliance are placed in the cold relatively external environment, can realize more benefit.In this external environment, the cold auxiliary air that sucks from this external environment can be reduced to the temperature of this auxiliary air below 0 ℃, and causes on heat sink or form on every side icing.This ice may damage the operating efficiency of heat sink then.Near the looking younger of preheating auxiliary air alleviated any adverse effect that ice formation is caused when degree ground to a certain extent.
According to still another embodiment of the invention, described second airduct has two air inlets, wherein first air inlet is gone to (be directed toward) described heat transfer unit (HTU), and wherein second air inlet is gone to and is used for drive arrangement at first hair-dryer of described first airduct be arranged in the motor of second hair-dryer in described second airduct.Thus, the heat that is distributed by two main sources can recover by near the air these sources is drawn in described second airduct.Even more preferably, described drying chamber is will be by the rotary drum of described revolution.Thus, only motor is provided to drive the movable-component except heat transfer unit (HTU) in the described household electrical appliance, the too much heat that this device that helps concentrating generation to pass through to be paid close attention to subsequently correspondingly recovers.According to another more preferred embodiment of the present invention, the preferred exemplary of this device of being paid close attention to is limited by described second hair-dryer as double-current hair-dryer, and this double fluid hair-dryer has two streams, and each air inlet is arranged in the respective streams place in these streams.
According to another preferred embodiment of the present invention, described household electrical appliance comprise bypass duct and switching device shifter, described bypass duct connects described first airduct and described second airduct, described switching device shifter is used for by described bypass duct, optionally the described process air of a part is routed in described second airduct.More preferably, described bypass duct is connected to described first airduct between described thermal source and described drying chamber, and described bypass duct is connected to described second airduct in described heat sink upstream.More preferably, described household electrical appliance comprise temperature sensor and control device, and described temperature sensor is used to detect the temperature at described heat sink place, and described control device is connected to described temperature sensor and described switching device shifter.In addition, described control device is arranged controls (engage) described switching device shifter, with when the detected temperature of described temperature sensor is lower than the preset limit temperature, the part of described process air is routed to described second airduct.More preferably, described household electrical appliance comprise the coagulum sensor that is arranged in described second airduct, described coagulum sensor is connected with described heat sink, be used to detect the coagulum that forms at described heat sink place, wherein said control device is connected to described coagulum sensor and described heat pump, and described control device is arranged to the testing result that receives in response to from described coagulum sensor, operates described heat pump.More preferably, described control device is connected to the included drive unit of described heat pump, and described control device is arranged to by operating described drive unit and operates described heat pump.
The household electrical appliance that comprise above-mentioned bypass duct can be so that the variation of its operator scheme and the surrounding environment in when operation adapts.Under the situation of low-down peripheral environment temperature, the part of the mobile described process air that can go out with the upstream branch from described drying chamber of auxiliary air is mixed, so that avoiding flowing through the main flow of the process air of heat sink is low temperature, the main flow that flows through the process air of heat sink is that low temperature will cause at heat sink place formation ice, to make second airduct shrink and form ice at the heat sink place, and the operation of infringement heat pump.In addition, described bypass duct can be used for carrying out deicing operation, the operation that can turn off heat pump in deicing operating period, and after will guiding to bypass duct through the process air of thermal source, make process air through heat sink, to be melted in the ice that the heat sink place forms.This deicing operation can also be used for by bypass duct being passed through in warm process air guiding and through heat sink, before the beginning drying course heat sink carrying out some The pre-heat treatment.This warm process air can come process air heated and obtains by for example additional heater as described below.Except avoid forming the ice in household electrical appliance, described bypass duct can also be used for preventing forming coagulum as what may occur too much at the heat sink place under warm and moist relatively external environmental condition.Identical as mentioned above supporting process can be used to control the temperature at heat sink place, to avoid occurring too much condensing.The application of these supporting processes can and use aforesaid sensor special to control by the control device of household electrical appliance.
According to another preferred embodiment of the present invention, described household electrical appliance comprise the heater that is arranged in described first airduct that is in described drying chamber upstream end, are used for optionally heating described process air.
Different heaters can be used in the rapidly pre-warming of realizing during heating period of operation household electrical appliance, and the steady-state process that can be used in operation provides some additional heating.These additional heating are useful, so that avoid just as mentioned above when using simultaneously with bypass duct, at heat sink place formation ice or too much coagulum.
Description of drawings
With reference now to accompanying drawing,, describes exemplary preferred embodiment of the present invention in detail.Described accompanying drawing comprises the schematic diagram of household electrical appliance.Particularly,
Fig. 1 shows first embodiment of household electrical appliance;
Fig. 2 shows the configuration of assembly of second embodiment of household electrical appliance;
Fig. 3 shows the configuration of assembly of the 3rd embodiment of household electrical appliance; And
Fig. 4 shows some features of the 4th embodiment of household electrical appliance.
The specific embodiment
Fig. 1 shows household electrical appliance 1, and these household electrical appliance 1 comprise shell 2, and shell 2 comprises will be at all component of household electrical appliance 1 described below, and is disposed in the suitable family expenses external environment.Described household electrical appliance 1 also comprise drying chamber 3, and this drying chamber 3 provides with the form of the cylinder 3 that the moving axis 4 that can rotate rotates.This cylinder 3 can enter by door 5, is used for the article 6 that will be dried of filling form for wet washing clothes 6.After oven dry, can also be by door 5 unloading washing clothes 6.
In order to dry washing clothes 6, utilization can suck household electrical appliance 1 by first airduct 7 with air by first hair-dryer 8 of motor 9 operations.In order to prevent that dust and other booty from staining washing clothes 6, in first airduct 7, be provided with filter 10.The process air that sucks by first airduct 7 can be heated by electric heater 11.According to the relevant knowledge in the drying and washing machine field, electric heater 11 can be replaced by the heater of operating by the burning of liquid or gaseous fuel.In this example, heater 11 only is an accessory assembly therefor, and the heating of process air is mainly finished by heat pump 12,13,14,15,16,17, and this heat pump comprises thermal source 13, and thermal source 13 constitutes the part of first airduct 7.According to relevant knowledge, household electrical appliance 1 can be specifically described to being the discharge type drying and washing machine, because by utilizing first airduct 7 to be drawn into household electrical appliance 1, only once by article 6, and discharge from household electrical appliance 1 subsequently, guide in the open circulation mode by the process air that first airduct 7 is carried.
The heat sink 14 that couples except thermal source 13 with second airduct 18, heat pump 12,13,14,15,16,17 comprises heat transfer unit (HTU) 12,15,16,1712, this heat transfer unit (HTU) 12,15,16,17 comprises heat transfer loop 12, this heat transfer loop 12 comprises that this compressor 15 is driven by compressor motor 16 by the heat-transfer fluid of compressor 15 and nozzle 17 circulations.For the operation of this heat pump 12,13,14,15,16,17, can be with reference to those skilled in the art's relevant knowledge.In any case, can be that heat-transfer fluid one of among refrigerant R134a, R152a, R290, R407C and the R410A will enter heat sink 14 with the form of liquid, evaporate by obtaining heat from the auxiliary air that flows through second airduct 18 that heat sink 14 belongs to.After evaporation in heat sink 14, heat-transfer fluid will flow through compressor 15, and compressor 15 compression heat-transfer fluids are to increase the interior pressure and the temperature of heat-transfer fluid.Then, the heat-transfer fluid after the compression enters thermal source 13, and liquefies in thermal source 13 by heat being discharged to the process air that flows through first airduct 7.After leaving thermal source 13, the heat-transfer fluid after the 12 guiding liquefaction of heat transfer loop is by nozzle 17, and at nozzle 17 places, the internal drop of the heat-transfer fluid after the liquefaction is low.Nozzle 17 will be understood that it is the representative of a plurality of suitable devices, comprises the nozzle 17, capillary and the check-valves that adopt suitable form.In nozzle 17 downstreams, the heat-transfer fluid that has after the liquefaction of interior pressure of reduction is guided resorption thermic devices 14, to finish its circulation by heat transfer loop 12.Correspondingly, by operation heat pump (12,13,14,15,16,17), flow through the heat heating that the process air of first airduct 7 is extracted from the auxiliary air that flows through second airduct 18.Correspondingly, be from the external environment of household electrical appliance 1, to extract heat, this heat is sent in the process air, so that heating comes the washing clothes 6 that held in the drying roller 3.
Be noted that the heat pump shown in Fig. 1 and the subsequent drawings should be considered to be used to the representative that the heat from auxiliary air is sent to other configurations of process air, the example of these configurations is parts of relevant knowledge.As example, except other, can enumerate thermoelectric heatpump and adsorption type heat pump.
Because heat sink 14 has cooled off auxiliary air to a great extent, so can reckon with moisture the condensing on heat sink 14 that is comprised in such auxiliary air.Correspondingly and meet relevant knowledge, heat sink 14 is designed so that can be collected these coagulums and these coagulums are directed in the coagulum gatherer 21, handles after finishing drying course being used for.
In the downstream of cylinder 3 and quencher moiety 22, first airduct 7 and second airduct 18 are combined into single blast pipe 23 respectively.First hair-dryer 8 is positioned at blast pipe 23, to suck process air and to suck auxiliary air by second airduct 18 by first airduct 7 simultaneously.
For the operation to household electrical appliance 1 provides to a certain degree control, temperature sensor 24 is placed on heat sink 14 places, to detect the local temperature at heat sink 14 places.Similarly, coagulum sensor 25 is placed on coagulum gatherer place, so that can be to monitoring in the coagulative generation at heat sink 14 places.Utilize these sensors 24 and 25, can control,, occur low temperature at heat sink 14 places and may cause in second airduct 18, forming ice with the low temperature of avoiding not expecting in the appearance of heat sink 14 places to the operation of heat sink 14.Temperature sensor 24 can be used to the temperature of direct monitoring heat sink 14, and coagulum sensor 25 can be used for monitoring indirectly via the coagulative estimation that the operating period at household electrical appliance 1 is produced the mode of operation of heat sink 14.In the above details is specifically described.It should be noted shown sensor 24 and 25 and do not mean that it is in household electrical appliance 1, to exist and be used for providing whole to the sensor of the control fully of household electrical appliance operation.With reference to the temperature that can be used for monitoring washing clothes 6 and control the relevant knowledge of other sensor of the operation of household electrical appliance 1 thus, particularly for the sensor in first airduct 7.In any case, can carry out this control by control device 26, this control device 26 is connected to all operations and the controlled assembly of household electrical appliance 1 by connection line 27, and wherein according to circumstances, connection line 27 is used for power supply or received signal.
Fig. 2 shows the improvement of the embodiment among Fig. 1, wherein only shows those important assemblies in the context that is presented.Be noted that in the present embodiment second airduct 18 is not the inside suction air from shell 2, but direct external environment suction air from household electrical appliance 1.Very important assembly is a bypass duct 28, and this bypass duct 28 connects first airduct 7 and second airducts 18, and tells from first airduct 7 in the downstream of thermal source 13, particularly in the downstream of heater 11 but in the upstream of cylinder 3.Correspondingly, bypass duct 28 allows after by thermal source 14 and 11 heating of optional heater, and the part of process air is transmitted to second airduct 18.The benefit of doing like this is for example can be by raising in the temperature of the auxiliary air at heat sink 14 places, avoids occurring at heat sink 14 places and monitor by temperature sensor 27 low temperature of not expecting.Similarly, can come to close second airduct 18 by the switching device shifter 29 (being illustrated as air flap (flap) 29) at operation bypass duct 28 places from its normal air inlet 19, to suck only by the air of thermal source 13 and/or heater 11 heating, thereby during the heating period of drying course, preheat closing on partly and heat sink of second airduct 18.This preheating can also be carried out in the steady-state process of drying course, in this case, should stop the normal running of heat pump 12,13,14,15,16,17, to avoid further cooling at heat sink 14 places, but by using the residual heat that in thermal source 13, comprises, the air after at least temporarily still can obtaining to heat.Utilize here or any method of above describing, for the mode of operation of avoiding at heat sink 14 places of not expecting, bypass duct 28 is very useful.Certainly, the embodiment shown in Fig. 2 also includes control device 26, is used for operating each mentioned assembly here by suitable connection line 27.
Fig. 3 shows the alternative embodiment of household electrical appliance 1, and this alternative embodiment is characterised in that to keep first airduct 7 and second airduct 18 separated from one another.It should be noted that this embodiment can also be improved to bypass duct 28 and the switching device shifter 29 that comprises shown in Fig. 2.As for first airduct 7, it should be noted that exhaust hose 30 is connected with the gas outlet 31 of first airduct 7.In general, the process air of discharging from first airduct 7 will comprise the moisture of a great deal of.Correspondingly, this process air should not be discharged in the external environment at once of household electrical appliance 1, to avoid this moisture of precipitation in this external environment.Under household electrical appliance 1 were placed on situation in the building, some guiding devices that provide commonly used can conduct building with these process airs by this guiding device.Then, this guiding device will comprise more or less flexible hose 30 usually, be used to be connected to household electrical appliance 1.Certainly, when being placed on the household electrical appliance 1 shown in Fig. 1 or Fig. 2 in the building, also should consider such flexible pipe 30.
Separate with first airduct 7 because second airduct 18 is most of at least, pass through so second airduct 18 comprises the auxiliary air that second hair-dryer 32 of separation drives in second airduct.It should be noted, may expect to utilize the single-motor 9 shown in Fig. 1 drive hair- dryer 8 and 32 both.The quencher moiety 22 that is also to be noted that second airduct 18 is a box by specific implementation, wherein is furnished with the drive unit 15 and 16 of heat pump 12,13,14,15,16,17, is specially compressor 15 and compressor motor 16.
Fig. 4 shows some example details of household electrical appliance 1,, is arranged in some assemblies on the bottom of household electrical appliance 1 that is.Household electrical appliance 1 have shell 2, and comprise all its functional units that are arranged in the shell 2, these functional units comprise first airduct 7, are arranged in first hair-dryer 8, motor 9 and various other assemblies in first airduct 7, these various other assemblies comprise some following assemblies that belong to heat pump 12,13,14,15,16,17: thermal source 13, in this example, this thermal source 13 has also defined the air inlet of first airduct 7; Be arranged in the heat sink 14 in second airduct 18; And compressor 15.With single current radially first hair-dryer 8 made of the form of hair-dryer with process air after by thermal source 13 heating, upwards be delivered to the cylinder of arranging on the configuration shown in Figure 43 (referring to other accompanying drawings).At process cylinder 3 with after being arranged in the wet washing clothes that wherein is used to dry, process air turns back to the part of the upper right quarter that is positioned at Fig. 4 in first airduct 7, and discharges household electrical appliance 1 by blast pipe 23.Second airduct 18 has two air inlets 19, and these two air inlets 19 are positioned at the corresponding air inlet place of second hair-dryer 32, and this second hair-dryer 32 is formed in radially hair-dryer of double fluid that opposite side has two air inlets.Thus, second hair-dryer 23 can be near the of compressor 15 and near the suction auxiliary air of motor 9, and this motor 9 drives first hair-dryer 8 and second hair-dryer 32 by single driving shaft 33.The given advantage of this configuration is to remove from the too much heat of compressor 15 and from the too much heat of motor 9 by second airduct 18, wherein further advantages are the auxiliary air that will cool off in heat sink is carried out some initial heating, and this can prevent to form too much curd or even formation ice in heat sink 14.After passing through heat sink 14, auxiliary air is guided blast pipe 23, and in blast pipe 23, auxiliary air and process air merge together.For further simplification and corresponding benefit are provided, can also dispatch motor 9 and utilize belt and driving wheel 34 head rolls 3, this belt hangs around (slingaround) on cylinder 3, and driving wheel 34 is arranged on the driving shaft 33.
In any case the household electrical appliance that are shown specifically are characterised in that and comprise that certain degree ground at least recovers the heat that uses in drying course, keep being designed all relevant positive feature of the conventional discharge type household electrical appliance that are used to dry simultaneously herein.
Reference numerals list:
1 household electrical appliance, dryer
2 shells
3 drying chambers, cylinder
4 turning cylinders
5
6 wet article, washing clothes
7 first airducts
8 first hair-dryers
9 motors
10 filters
11 heaters
12 heat transfer unit (HTU)s, the heat transfer loop
13 liquefiers, thermal source
14 evaporimeters, heat sink
15 heat transfer unit (HTU)s, compressor
16 heat transfer unit (HTU)s, compressor motor
17 heat transfer unit (HTU)s, nozzle
18 second airducts
The air inlet of 19 second airducts
Slit in 20 shells
21 coagulum gatherers
22 quencher moieties
23 blast pipes
24 temperature sensors
25 coagulum sensors
26 control device
27 connection lines
28 bypass ducts
29 switching device shifters, air flap
30 exhaust hoses
The gas outlet of 31 first airducts
32 second hair-dryers
33 driving shafts
34 driving wheels
Claims (20)
1. household electrical appliance (1) comprising:
Shell (2),
Drying chamber (3) is used to dry the wet article (6) in it,
First airduct (7), the process air guiding that is used for sucking enters described shell (2) dries described article (6), and
Heat pump (12,13,14,15,16,17), described heat pump (12,13,14,15,16,17) comprising:
Heat sink (14) is used for heat is sent in the described heat pump (12,13,14,15,16,17),
With the thermal source (13) that described first airduct (7) couples, be used for the heat from described heat pump (12,13,14,15,16,17) is sent in the described process air, and
Heat transfer unit (HTU) (12,15,16,17) is used for the heat from described heat sink (14) is sent to described thermal source (13),
It is characterized in that described heat sink (14) couples with second airduct (18) that the auxiliary air that is used for sucking is guided into described shell (2), is used for the heat from described auxiliary air is sent in the described heat pump (12,13,14,15,16,17).
2. household electrical appliance as claimed in claim 1 (1), wherein, described heat transfer unit (HTU) (12,15,16,17) comprising:
Heat transfer loop (12), described heat transfer loop (12) comprises the heat-transfer fluid that will cycle through described heat transfer loop (12);
Compressor (15) is used to compress described heat-transfer fluid and makes described heat-transfer fluid cycle through described heat transfer loop (12); And
Nozzle (17), the described heat-transfer fluid that is used to decompress,
Described heat sink (14) is to be used for by evaporating described heat-transfer fluid the heat from described process air being sent to the evaporimeter (14) of described heat-transfer fluid, and described thermal source (13) is the liquefier (13) that is used for by the described heat-transfer fluid that liquefies the heat from described heat-transfer fluid being sent to described process air.
3. household electrical appliance as claimed in claim 2 (1), wherein, described heat-transfer fluid comprises the fluorinated hydrocarbons compound.
4. described household electrical appliance of claim (1) in the claim as described above, wherein, described heat-transfer fluid is selected from the group that comprises refrigerant R134a, R152a, R290, R407C and R410A.
5. described household electrical appliance of claim 1 (1) as described above, wherein, described drying chamber (13) is cylinder (3).
6. described household electrical appliance of claim 1 (1) as described above, described household electrical appliance (1) are configured to be used to dry the dryer (1) of wet washing clothes (6).
7. described household electrical appliance of claim 1 (1) as described above, wherein, described second airduct (18) couples with described heat transfer unit (HTU) (12,15,16,17), and the heat that is used for distributing from described heat transfer unit (HTU) (12,15,16,17) is sent to described auxiliary air.
8. household electrical appliance as claimed in claim 7 (1), wherein, described second airduct (18) is configured to make described auxiliary air passing through compressor (15) and compressor motor (16) before, earlier by described heat sink (13).
9. as the described household electrical appliance of claim (1) in claim 7 and 8, wherein, described first airduct (7) and described second airduct (18) are incorporated in the single blast pipe (23), and described single blast pipe (23) is used for described process air and described auxiliary air are discharged described shell (2).
10. household electrical appliance as claimed in claim 9 (1), wherein, described blast pipe (23) comprises single hair-dryer (8), is used to discharge described process air and described auxiliary air.
11. described household electrical appliance of claim 1 (1) as described above, wherein said shell (2) has opening, be used to make air to flow into described shell (2), and wherein said second airduct (18) have at least one air inlet (19) that is arranged in the described shell (2).
12. household electrical appliance as claimed in claim 11 (1), wherein, described second airduct (18) has two air inlets (19), wherein first air inlet (19) is gone to described heat transfer unit (HTU) (12,15,16,17), and wherein second air inlet (19) is gone to and is used for drive arrangement at first hair-dryer (8) of described first airduct (7) be arranged in the motor (9) of second hair-dryer (32) in described second airduct (18).
13. household electrical appliance as claimed in claim 12 (1), wherein, described drying chamber (3) is the cylinder (3) that rotates by described motor (9).
14. as the described household electrical appliance of claim (1) in claim 12 and 13, wherein, described second hair-dryer (32) is the double-current hair-dryer (32) with two streams, and each air inlet (19) is arranged in the correspondence stream place in these streams.
15. described household electrical appliance of claim 1 (1) as described above comprising:
Bypass duct (28) is used to connect described first airduct (7) and described second airduct (18); And
Switching device shifter (29) is used for by described bypass duct (28), and optionally the part with described process air is routed in described second airduct (18).
16. household electrical appliance as claimed in claim 15 (1), wherein, described bypass duct (28) is connected to described first airduct (7) between described thermal source (13) and described drying chamber (3), and described bypass duct (28) is connected to described second airduct (18) in the upstream of described heat sink (14).
17. as the described household electrical appliance of claim (1) in claim 15 and 16, comprise the temperature sensor (24) that is used to detect the temperature that described heat sink (14) locates, and comprise control device (26), described control device (26) is connected to described temperature sensor (24) and described switching device shifter (29), described control device (26) is arranged controls described switching device shifter (29), with when the detected temperature of described temperature sensor (24) is lower than the preset limit temperature, the part of described process air is routed in described second airduct (18).
18. household electrical appliance as claimed in claim 17 (1), comprise the coagulum sensor (25) that is arranged in described second airduct (18), described coagulum sensor (25) is connected with described heat sink (14), be used for detecting the coagulum of locating to form at described heat sink (14), described control device (26) is connected to described coagulum sensor (25) and described heat pump (12,13,14,15,16,17), and described control device (26) be arranged to the testing result that receives in response to from described coagulum sensor (25), operate described heat pump (12,13,14,15,16,17).
19. household electrical appliance as claimed in claim 18 (1), wherein said control device (26) is connected to described heat pump (12,13,14,15,16,17) included compressor (15) and compressor motor (16) in, and wherein said control device (26) is arranged to by operating described compressor (15) and described compressor motor (16) is operated described heat pump (12,13,14,15,16,17).
20. the described household electrical appliance of claim 1 (1) comprise the heater (11) that is arranged in described first airduct (7) that is in described drying chamber (3) upstream as described above, are used for optionally heating described process air.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07380356.1 | 2007-12-11 | ||
| EP07380356A EP2071069A1 (en) | 2007-12-11 | 2007-12-11 | Household appliance comprising a first air conduit and a heat pump |
| EP08001957 | 2008-02-01 | ||
| EP08001957.3 | 2008-02-01 | ||
| PCT/EP2008/066214 WO2009074455A1 (en) | 2007-12-11 | 2008-11-26 | Household appliance comprising a first air conduit and a heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101896660A CN101896660A (en) | 2010-11-24 |
| CN101896660B true CN101896660B (en) | 2011-12-28 |
Family
ID=40404118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801202126A Expired - Fee Related CN101896660B (en) | 2007-12-11 | 2008-11-26 | Household appliance comprising a first air conduit and a heat pump |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100263225A1 (en) |
| EP (1) | EP2235249B1 (en) |
| CN (1) | CN101896660B (en) |
| EA (1) | EA017367B1 (en) |
| PL (1) | PL2235249T3 (en) |
| WO (1) | WO2009074455A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1921201A3 (en) * | 2006-11-08 | 2010-07-21 | LG Electronics Inc. | Exhaust structure for clothes dryer in apartment building |
| EP1964965A1 (en) * | 2007-03-02 | 2008-09-03 | BSH Bosch und Siemens Hausgeräte GmbH | Household appliance with heat pump |
| EP2053159A1 (en) * | 2007-10-25 | 2009-04-29 | BSH Electrodomésticos España, S.A. | Household appliance containing a heat transfer fluid |
| EP2058427A1 (en) * | 2007-11-06 | 2009-05-13 | BSH Electrodomésticos España, S.A. | Household appliance having a heat pump unit and means for cooling a component thereof |
| EP2385169A1 (en) * | 2010-05-03 | 2011-11-09 | Electrolux Home Products Corporation N.V. | A laundry machine with heat pump system and a method for operating the laundry machine |
| EP2489775A1 (en) * | 2011-02-18 | 2012-08-22 | Electrolux Home Products Corporation N.V. | A heat pump laundry dryer and a method for operating a heat pump laundry dryer |
| FR2972787B1 (en) * | 2011-03-16 | 2013-03-29 | Pierre Brun | WET AIR TREATMENT DEVICE AND METHOD THEREOF |
| CN102505436B (en) * | 2011-11-18 | 2016-08-31 | 青岛海尔滚筒洗衣机有限公司 | A kind of heat pump washing-drying integral machine and drying mode |
| CN104105436B (en) | 2011-12-13 | 2016-09-14 | 艺康美国股份有限公司 | Dish-washing machine |
| CN102560986B (en) * | 2011-12-30 | 2017-06-09 | 青岛海尔滚筒洗衣机有限公司 | Washing-drying integral machine and its drying control method with adjusting heat pump burden functional |
| KR102009277B1 (en) * | 2012-10-22 | 2019-08-09 | 엘지전자 주식회사 | Clothes treating apparatus with a heat pump and operating method thereof |
| KR102094340B1 (en) | 2014-03-17 | 2020-03-30 | 삼성전자주식회사 | Household appliance having drying apparatus |
| CN104840167A (en) * | 2015-06-04 | 2015-08-19 | 广州铭圣环保科技有限公司 | Drying equipment of dish washing machine |
| CN106480682B (en) * | 2015-08-31 | 2019-11-05 | 青岛海尔洗衣机有限公司 | A kind of efficient straight-line heat pump clothes dryer |
| WO2019192879A1 (en) * | 2018-04-02 | 2019-10-10 | Arcelik Anonim Sirketi | A laundry washer/dryer |
| WO2021112705A1 (en) * | 2019-12-04 | 2021-06-10 | Общество С Ограниченной Ответственностью "Роторно-Поршневые Компрессоры Инжиниринг" | Cooling system for rotary piston compressor |
| EP4116482A1 (en) * | 2021-07-08 | 2023-01-11 | Arçelik Anonim Sirketi | A heat pump dryer comprising a heater group |
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| CN1906451A (en) * | 2004-04-09 | 2007-01-31 | 松下电器产业株式会社 | Drying equipment |
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| US3736981A (en) * | 1971-08-20 | 1973-06-05 | Minnesota Mining & Mfg | Device and method for storing and cooking foodstuffs in a refrigerated environment |
| US4065253A (en) * | 1976-08-20 | 1977-12-27 | W. M. Cissell Manufacturing Company | Laundry dryer |
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- 2008-11-26 EA EA201070688A patent/EA017367B1/en not_active IP Right Cessation
- 2008-11-26 CN CN2008801202126A patent/CN101896660B/en not_active Expired - Fee Related
- 2008-11-26 PL PL08860807.0T patent/PL2235249T3/en unknown
- 2008-11-26 WO PCT/EP2008/066214 patent/WO2009074455A1/en active Application Filing
- 2008-11-26 US US12/746,188 patent/US20100263225A1/en not_active Abandoned
- 2008-11-26 EP EP08860807.0A patent/EP2235249B1/en active Active
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| DE4330456C1 (en) * | 1993-09-08 | 1995-03-16 | Blomberg Werke Gmbh | Tumble dryer |
| CN1906451A (en) * | 2004-04-09 | 2007-01-31 | 松下电器产业株式会社 | Drying equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100263225A1 (en) | 2010-10-21 |
| EP2235249A1 (en) | 2010-10-06 |
| PL2235249T3 (en) | 2016-11-30 |
| EA017367B1 (en) | 2012-11-30 |
| EA201070688A1 (en) | 2011-04-29 |
| CN101896660A (en) | 2010-11-24 |
| EP2235249B1 (en) | 2016-05-25 |
| WO2009074455A1 (en) | 2009-06-18 |
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| 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 | ||
| C56 | Change in the name or address of the patentee |
Owner name: BSH HOME APPLIANCES CO., LTD. Free format text: FORMER NAME: BSH BOSCH SIEMENS HAUSGERAETE |
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| CP01 | Change in the name or title of a patent holder |
Address after: Munich, Germany Patentee after: BSH Household Electrical Appliance Co., Ltd Address before: Munich, Germany Patentee before: BSH Bosch Siemens Household Appliances Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20191126 |