EP3533921B1 - Appareil ménager comprenant un élément chauffant et une pompe à chaleur - Google Patents

Appareil ménager comprenant un élément chauffant et une pompe à chaleur Download PDF

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Publication number
EP3533921B1
EP3533921B1 EP19157626.3A EP19157626A EP3533921B1 EP 3533921 B1 EP3533921 B1 EP 3533921B1 EP 19157626 A EP19157626 A EP 19157626A EP 3533921 B1 EP3533921 B1 EP 3533921B1
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EP
European Patent Office
Prior art keywords
heater
temperature
household appliance
compressor
control unit
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
EP19157626.3A
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German (de)
English (en)
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EP3533921A1 (fr
Inventor
Jose Antonio Ruiz Bermejo
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
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Publication of EP3533921A1 publication Critical patent/EP3533921A1/fr
Application granted granted Critical
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Classifications

    • 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
    • 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
    • D06F58/30—Drying processes 
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/08—Humidity
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/58—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to condensation, e.g. condensate water level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/26—Heat pumps
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28—Electric heating
    • 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
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the invention relates to a household appliance comprising a heater and a heat pump including a compressor.
  • the invention relates to a method for operating a compressor of a household appliance.
  • the invention is particularly useful for clothes drying appliances, in particular clothes drying appliances having an ECO mode and a SPEED mode.
  • Clothes drying appliances comprising a heat pump having a compressor are generally known in the art.
  • WO 2007/077084 A1 discloses a domestic appliance for the care of washed articles, in particular a tumble drier.
  • Said appliance comprises a container for receiving the washed articles, a process air supply that is connected to the container, allowing process air to flow through the container, and a first heat exchanger which is coupled to the process air supply and is designed to dehumidify the process air that exits the container.
  • EP 2 985 466 A1 discloses a rotary compressor which comprises a cylindrical housing, a cylindrical roller accommodated in the housing, a motor shaft leading through the roller having a cam for rolling the roller along a side wall of the housing, and a discharge port leading through a bottom cover.
  • a household appliance, in particular laundry care apparatus comprises the heat pump.
  • the components of the heat pump as well as the refrigerant are often at ambient temperature.
  • the heat pump is gradually heating up. Only when a condensing temperature at a condenser of the heat pump has risen high enough, a high dehumidifying capacity is achieved. This heating-up time can stretch from 20 to 50 minutes, depending on the heat pump dryer appliance, the ambient temperature etc.
  • a household appliance comprising a heater and a heat pump including a compressor, wherein the heater is adapted to heat the compressor.
  • the improved dehumidifying effect can be based on that, in the compressor, the time needed for solubilisation of the refrigerant into oil is significantly reduced with higher temperatures.
  • the desired quantity of refrigerant in heat exchangers (condenser and evaporator) corresponding to a stable condition of the refrigerant in the cooling circuit is reached earlier than before.
  • That the heater is adapted to heat the compressor includes that this heater's function is primarily or exclusively to heat or to warm up the compressor.
  • Such a heater can also be regarded as a heater that is dedicated to heat the compressor ("dedicated") heater.
  • other heaters that are not primarily used to warm up the compressor are not regarded to be such dedicated heaters.
  • the heat pump may comprise the compressor, a condenser, an expansion means (e.g. a capillary or an expansion valve), and an evaporator, connected in this order by the fluid conduits carrying refrigerant.
  • the heat pump provides a cooling circuit for the refrigerant flowing through the compressor, the condenser, the expansion means, and the evaporator, in this direction.
  • the fluid conduits may be or comprise pipes etc.
  • the pipes may be made of copper, aluminium etc.
  • the condenser and the evaporator may act as heat exchangers.
  • the refrigerant may, for instance, comprise R290, R1270, R32, R134a, R407C, etc.
  • the compressor may be a BLDC-driven compressor, i.e., a compressor having a BDLC motor.
  • the compressor is an AC rotary compressor, i.e., a compressor having an AC motor.
  • An AC-driven rotary compressor may have a fixed nominal speed. While BLDC-driven compressors have a higher efficiency than AC rotary compressors, they are also more expensive and need additional components like an inverter electronic to be operated.
  • the housing is made of metal to achieve a high thermal conductivity.
  • the type and set-up of such a (dedicated) heater is not limited.
  • the heater may be a non-contact heater positioned in some distance from the compressor.
  • Such a non-contact heater may comprise one or more radiation heat sources like an electrical resistance heater, an IR-lamp, a halogen lamp, etc. It is an advantageous embodiment that the heater is an electric resistance heater.
  • the heater is attached to the compressor. This advantageously gives a particularly effective heat transfer from the heater to the compressor by thermal conduction via contact areas. Particularly in this case, it is an advantageous embodiment that the heater is an electric resistance heater. Generally, it is an advantage if the attachment achieves a proper contact between the heater and the compressor housing, e.g., a continuous contact having a low thermal resistance.
  • the heater is attached to a housing of the compressor.
  • the compressor may be advantageously heated over a large area.
  • the heater may be arranged to effectively heat the whole housing or only part of the housing.
  • the housing may also be called a compressor shell.
  • the attachment may be realized by any suitable means, e.g. gluing, clipping, screwing etc.
  • the heater is attached to an outer side of the housing. This further simplifies attachment of the heater.
  • the electric resistance heater comprises at least one electrically conducting heating band or electric cable wound around the housing. This allows a particularly simple and robust heater arrangement to heat a large surface of the housing with a high heating power.
  • the household appliance further comprises a control unit adapted to control a heating power of the heater, e.g. to switch the heater on and off.
  • a control unit adapted to control a heating power of the heater, e.g. to switch the heater on and off.
  • the operation of the heater may be precisely controlled.
  • the control unit may be coordinated with a central control unit of the household appliance.
  • the heater control unit may be integrated in or connected with the central control unit.
  • the control unit may comprise at least one processor.
  • the heating power of an electric heater may be controlled or set by setting a respective electric power, in particular, a respective electric current, running through the electric heater.
  • control unit is connected to at least one temperature sensor. This advantageously allows the control unit to adapt the operation of the heater based on temperatures measured by the temperature sensor.
  • control unit is adapted to operate the heater until at least one predefined target temperature for the at least one temperature sensor is reached.
  • the target temperature may be associated with a stable condition.
  • the heater is only operated until the stable condition is reached.
  • control unit is adapted to monitor the at least one temperature sensor and to operate the heater each time, the temperature falls under a pre-determined (lower) temperature threshold. The lower temperature threshold is lower than the target temperature.
  • control unit is adapted to switch on a heating power of the heater when the compressor is switched on. In another variant, the control unit is adapted to switch on a heating power before the compressor is switched on and/or after the compressor has been switched off.
  • control unit is adapted to adjust a level of a heating power of the heater. This allows an effective and precise way to heat up the compressor, in particular to avoid a thermal overshoot.
  • the adjustment of the level of the heating power may be time-dependent, in particular only time-controlled, e.g. based on a duration of activation of the heater. This, in turn, saves energy for operating the heater.
  • control unit is connected to a temperature sensor and is adapted to adjust a level of a heating power according to a temperature measured by the temperature sensor. This allows a particularly effective and precise way to heat up the compressor, in particular to avoid a thermal overshoot. Adjusting the level of the heating power may include setting the level of the heating power to one ore more levels larger than zero. The levels may include several distinct levels or steps. Alternatively, the control unit is adapted to continuously or quasi-continuously adjust the level of the heating power. Adjusting the level of the heating power may include setting the level of the heating power to zero.
  • adjusting the level of the heating power may be achieved by varying a resistance value of a series resistor or dropping resistor, thus, e.g., leading to a variation of an electric current flowing through the heater.
  • this may be achieved by repeatedly switching the heater on and off (PWM-like heating); in this case, the electric current running through the electric heater may be constant in the switched-on state (during a pulse).
  • the width of the pulses, their period, and/or their duty cycle may be varied by the control unit.
  • the control unit may be or may comprise a PID (proportional-integral-derivative) controller to imprint the electric power.
  • the at least one temperature e.g. a target temperature and/or a temperature measured by the a least one temperature sensor, may be any temperature associated with the cooling circuit.
  • the household appliance may comprise respective temperature sensors. Additionally or alternatively, the temperatures may be derived from other measurements.
  • the target temperature is a temperature measured at the compressor, in particular at the housing of at a surface of the compressor.
  • the target temperature is a temperature of the refrigerant, e.g. measured at a suitable point of the cooling circuit, e.g. at a discharge port of the compressor and/or at a refrigerant output of the condenser.
  • the target temperature may correspond to an upper temperature threshold.
  • the control unit may be adapted to operate the heater until the at least one target temperature is reached or exceeded.
  • control unit is connected to a temperature sensor for sensing the ambient temperature.
  • control unit is adapted to switch on or activate the heater when the ambient temperature is below a predefined ambient temperature, in particular irrespective of an activation of the compressor, e.g. when the household appliance is at a place having a very cold ambient temperature.
  • control unit is adapted to gradually reduce the heating power over time compared to a highest heating power at the beginning of an operation or activation of the heater. This advantageously allows heating up the compressor in a particularly energy efficient manner by mitigating or avoiding a thermal overshoot.
  • the reduction of the heating power may, e.g., be achieved by using a proportional control or a PID control.
  • the household appliance is a clothes drying appliance.
  • the clothes drying appliance may be a clothes dryer or a washing machine / clothes dryer combination.
  • the clothes drying appliance may be a domestic or household appliance.
  • the condenser and the evaporator may act as heat exchangers positioned in a process air channel (e.g. an open-loop or closed-loop process air channel).
  • a process air channel e.g. an open-loop or closed-loop process air channel.
  • the condenser may act as a heater for process air flowing through the process air channel while the evaporator may act as a cooling device to cool down the process air.
  • the arrangement and working principle of heat pumps for a clothes drying apparatus is generally known and will thus not described in greater detail.
  • the above described invention is particularly effective for a household appliance in which the amount of refrigerant is 200 g or less, in particular 160 g or less, in particular 150 g or less, in particular 140 g or less, in particular 120 g or less, in particular 100 g or less. This is the case, e.g., in clothes drying appliances.
  • the above described invention advantageously allows reducing the amount of refrigerant.
  • the household appliance in a first mode of operation (e.g. called an "ECO mode") of the household appliance, the household appliance is adapted to permanently turn off the heater and, in a second mode of operation (e.g. called an "SPEED mode"), the household appliance is adapted to turn on the heater.
  • a first mode of operation e.g. called an "ECO mode”
  • a second mode of operation e.g. called an "SPEED mode
  • the object is also achieved by a method for operating a compressor of a household appliance comprising a heat pump including a compressor, wherein the compressor is heated by a heater.
  • the method may be embodied in analogy to the household appliance and achieves the same advantages.
  • the heater is operated until at least one target temperature is reached.
  • a heating power is adjusted according to at least one temperature measured by the at least one temperature sensor.
  • the heater is switch on when the ambient temperature is below a predefined ambient temperature.
  • the heating power is gradually reduced over time compared to a highest heating power at the beginning of an operation of the heater.
  • Fig.1 shows a functional block diagram of a clothes drying apparatus 1 according to the invention.
  • the clothes drying apparatus 1 has a closed-loop process air circuit 2 comprising a rotational drum 3 for holding clothes.
  • An output port of the drum 3 is connected to a lint filter 4 via a section of a process air channel 5 (long dashed lines).
  • the lint filter 4 is connected to a first heat exchanger 6 via another section of the process air channel 5.
  • Process air P is guided over a surface of the first heat exchanger 6 where it is cooled down so that the moist process air P from the drum 3 condensates.
  • the resulting condensate 7 may be collected in a tray 8.
  • the collected condensate may be lead to waste or may be re-used, e.g. for cleaning at least the first heat exchanger 6.
  • the heat exchanger 6 is further connected to a second heat exchanger 9 via yet another section of the process air channel 5.
  • the second heat exchanger 9 is connected to a fan 10 for moving the process air P within the process air circuit 2 via yet another section of the process air channel 5.
  • the fan 10 is connected to an inlet port of the drum 3 via yet another section of the process air channel 5.
  • dry and warm process air P is introduced into the drum 3 to dry the clothes.
  • the fan 10 may also be placed at another position within the process air circuit 2, e.g. between the drum 3 and the lint filter 4.
  • the process air circuit 2 may have additional components (not shown) like an additional electric heater, an additional fan, further lint filters etc.
  • the first heat exchanger 6 and the second heat exchanger 9 are also components of a heat pump 11 of the clothes drying apparatus 1.
  • the first heat exchanger 6 corresponds to an evaporator of the heat pump 11 while the second heat exchanger 9 corresponds to its condenser.
  • the heat pump 11 further comprises an AC rotary compressor 12 and an expansion means 13, e.g. a capillary or an expansion valve.
  • a high-pressure side or port of the AC rotary compressor 12 is connected to the condenser (second heat exchanger 9) via a first fluid conduit 14 for refrigerant F.
  • the condenser 9 is further connected to a high-pressure side of the expansion means 13 via a second fluid conduit 15 for the refrigerant F.
  • a low-pressure side of the expansion means 13 is connected to the evaporator (first heat exchanger 6) via a third fluid conduit 16 for the refrigerant F.
  • the evaporator 6 is connected to a low-pressure side of the AC rotary compressor 12 via a fourth fluid conduit 17 for the refrigerant F.
  • the amount of refrigerant may be 200 g or less, in particular 160 g or less, in particular 150 g or less, in particular 140 g or less, in particular 120 g or less, in particular 100 g or less.
  • pressurized refrigerant F flows from the high-pressure side of the AC rotary compressor 12, through the first conduit 14, through the condenser 9, through the second conduit 15, through the expansion means 13 (where it is expanded at its low-pressure side), through the third conduit 16, through the evaporator 6, and through the fourth conduit 17 to the low-pressure side of the AC rotary compressor 12.
  • the refrigerant F is compressed and is then again emitted at the high-pressure side of the AC rotary compressor 12.
  • the refrigerant F is not moved by the AC rotary compressor 12 anymore but may - if not prevented - move to equilibrate pressure between the high-pressure section of the heat pump 11 and the low-pressure section of the heat pump 11.
  • the AC rotary compressor 12 comprises a housing 18 or shell. At the outside of the housing 18 is attached an electrical resistance heater 19 comprising at least one electrically conducting heating band or heating cable 20 wound around the housing 18.
  • the heater 19 is adapted to heat the housing 18 and thus the functional components of the AC rotary compressor 12 housed by the housing 18. Heating or activation of the heater 19 is achieved by sending an electric current through the at least one heating band or heating cable 20. To this effect, the heater 19 may be connected to a current supply (not shown), e.g. via one or more switches (not shown).
  • the clothes drying apparatus 1 also comprises a control unit 21 controlling operation functional components of the clothes drying apparatus 1, e.g. the AC rotary compressor 12, the heater 19, the drum 3 and the fan 10, as well as further functional components.
  • the control unit 21 is adapted to control a heating power of the heater 19. Controlling the heating power may include switching the heater 19 on and off and adjusting the power level in a switched-on state of the heater 19.
  • the control unit 21 is further connected to one or more of the following temperature sensors:
  • control unit 21 may operate the heater 19 based on the temperature measured by one or more of the above temperature sensors 22, 24, 26.
  • the control unit 21 may be adapted to operate the heater 19 until at least one target temperature corresponding to the compressor discharge temperature and/or corresponding to the condenser out temperature is reached.
  • the control unit 21 may switch of the heater 19 if a target temperature of the compressor discharge temperature is reached and/or if a target temperature of the condenser out temperature is reached.
  • control unit 21 may be adapted to adjust a heating power of the heater 19 based on the compressor discharge temperature, the condenser out temperature and/or the ambient temperature.
  • the control unit 21 may further be adapted to switch on the heater 19 - if necessary - when the AC rotary compressor 12 is switched on. An activation of the heater 19 may not be necessary if the at least one target temperature has already been reached.
  • control unit 21 may further be adapted to switch on the heater 19 if the at least one target temperature has not been reached even if the AC rotary compressor 12 is switched off, e.g., at a beginning of a drying program.
  • the control unit 21 may also be adapted to switch on the heater 19 when the ambient temperature is below a predefined ambient temperature.
  • a level of the heating power for such a case may be relatively low, especially if the at least one target temperature has already been reached. This is advantageous if the ambient temperature is very low.
  • the control unit 21 may also be adapted to gradually reduce the heating power over time, especially compared to a highest heating power at the beginning of an operation of the heater 19.
  • the clothes drying apparatus 1 may have no lint filter 4.
  • the clothes drying apparatus 1 may comprise an additional fan for cooling the AC rotary compressor 12.
  • BDLC-driven compressor may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)

Claims (15)

  1. Appareil ménager (1) comprenant une pompe à chaleur (11) incluant un compresseur (12), un chauffage (19), une unité de commande (21) adaptée pour commander une puissance de chauffage du chauffage (19), et au moins un capteur de température (22, 24, 26) connecté à l'unité de commande (21), dans lequel l'au moins un capteur de température (22) est adapté pour mesurer au moins une température, et dans lequel l'unité de commande (21) est adaptée pour faire fonctionner le chauffage (19) jusqu'à ce qu'au moins une température cible associée à l'au moins une température soit atteinte,
    caractérisé en ce que le chauffage (19) a pour fonction exclusive de chauffer le compresseur (12) et en ce que l'au moins un capteur de température (22) est adapté pour mesurer au moins une température parmi le groupe comprenant
    - une température du compresseur (12), en particulier une température de refoulement du compresseur, et
    - au moins une température de l'air de traitement (P) dans un circuit d'air en boucle fermée ou un canal d'air de traitement (5).
  2. Appareil ménager (1) selon la revendication 1, dans lequel le chauffage (19) est fixé au compresseur (12).
  3. Appareil ménager (1) selon la revendication 2, dans lequel le chauffage (19) est fixé à un boîtier métallique (18) du compresseur (12).
  4. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel le chauffage (19) est un chauffage (19) à résistance électrique.
  5. Appareil ménager (1) selon les revendications 2 et 4, dans lequel le chauffage (19) comprend au moins une bande chauffante ou un câble chauffant (20) conducteur d'électricité enroulé autour du boîtier (18).
  6. Appareil ménager (1) selon l'une quelconque des revendications précédentes, comprenant en outre un capteur de température (24, 26) du groupe comprenant :
    - un capteur de température (26) pour détecter la température ambiante, dans lequel l'unité de commande (21) est adaptée pour allumer le chauffage (19) lorsque la température ambiante est inférieure à une température ambiante prédéfinie, indépendamment de l'activation du compresseur (12), et
    - un capteur de température (24) pour détecter la température d'un condenseur (9), en particulier d'une sortie de réfrigérant (25) du condenseur (9).
  7. Appareil ménager (1) selon l'une quelconque des revendications 1 à 5, dans lequel l'au moins un capteur de température (22) est uniquement adapté pour mesurer une température du compresseur (12), en particulier une température de refoulement du compresseur.
  8. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel l'unité de commande (21) est adaptée pour faire fonctionner le chauffage (19) à chaque fois que la température mesurée au moins est inférieure à un seuil de température prédéterminé qui est inférieur à l'au moins une température cible.
  9. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel l'unité de commande (21) est adaptée pour ajuster un niveau de puissance de chauffage en allumant et en éteignant le chauffage de manière répétée selon un procédé PWM, dans lequel une largeur d'impulsions électriques, leur période et/ou leur rapport cyclique peuvent être modifiés par l'unité de commande (21).
  10. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel l'unité de commande comprend un contrôleur PID pour imprimer la puissance électrique.
  11. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel l'unité de commande (21) est adaptée pour réduire progressivement la puissance de chauffage au fil du temps par rapport à la puissance de chauffage la plus élevée au début du fonctionnement du chauffage (19).
  12. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel une quantité de réfrigérant (f) est de 200 g ou moins, en particulier 160 g ou moins, en particulier 150 g ou moins, en particulier 140 g ou moins, en particulier 120 g ou moins, en particulier 100 g ou moins.
  13. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel l'appareil ménager (1) est un appareil de séchage du linge.
  14. Appareil ménager (1) selon l'une quelconque des revendications précédentes, dans lequel, dans un premier mode de fonctionnement de l'appareil ménager (1), l'appareil ménager (1) est conçu pour éteindre en permanence le chauffage (19) et, dans un deuxième mode de fonctionnement, l'appareil ménager (1) est conçu pour allumer le chauffage (19).
  15. Procédé de fonctionnement de l'appareil ménager (1) selon l'une quelconque des revendications précédentes et la revendication 6, dans lequel le chauffage (19) fonctionne jusqu'à ce qu'au moins une température cible associée à au moins une température parmi le groupe comprenant :
    - une température du compresseur (12), en particulier une température de refoulement du compresseur,
    - une température d'un condenseur (9), en particulier d'une sortie de réfrigérant (25) du condenseur (9), et
    - au moins une température de l'air de traitement (P) dans un circuit d'air en boucle fermée ou un canal d'air de traitement (5) est atteinte.
EP19157626.3A 2018-03-02 2019-02-18 Appareil ménager comprenant un élément chauffant et une pompe à chaleur Active EP3533921B1 (fr)

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ES201830208A ES2725686A1 (es) 2018-03-02 2018-03-02 Aparato doméstico que comprende un calentador y una bomba de calor

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CN113531803A (zh) * 2021-06-22 2021-10-22 青岛海尔空调器有限总公司 用于空调器保温棉预热的方法及装置、空调器和空调***

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EP0999302A1 (fr) * 1998-10-21 2000-05-10 Whirlpool Corporation Sèche-linge à tambour avec pompe à chaleur
DE102007016077A1 (de) * 2007-04-03 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Kondensationstrockners mit einem Wärmepumpenkreis, sowie entsprechender Kondensationstrockner
DE102014219457A1 (de) * 2014-09-25 2016-03-31 BSH Hausgeräte GmbH Trockner mit einer Wärmepumpe und einer Zusatzheizung sowie Verfahren zu seinem Betrieb

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JPH08213157A (ja) * 1995-01-31 1996-08-20 Nissei Denki Kk ベルト状発熱体
EP1983095B1 (fr) * 2008-08-08 2012-09-05 V-Zug AG Sèche-linge doté d'un chauffage dans le circuit de pompe à chaleur
US8572865B2 (en) * 2010-10-29 2013-11-05 General Electric Company Apparatus and method for using a hybrid dryer tub for airflow improvement
KR101978170B1 (ko) * 2012-10-22 2019-05-14 엘지전자 주식회사 에너지효율이 표시되는 의류처리장치 및 의류처리장치의 에너지 효율 표시방법
PL2826909T3 (pl) * 2013-07-19 2022-02-14 Electrolux Appliances Aktiebolag Sposób obsługi jednostki generowania pary w suszarce do prania i sposób obsługi suszarki do prania
ITPR20130107A1 (it) * 2013-12-30 2015-07-01 Indesit Co Spa Elettrodomestico di asciugatura.
CN203923743U (zh) * 2014-05-12 2014-11-05 佛山市顺德海尔电器有限公司 一种低温下增加热能的热泵干衣机
EP2990521B1 (fr) * 2014-08-29 2017-03-08 Electrolux Appliances Aktiebolag Sèche-linge
CN106676856B (zh) * 2015-11-06 2021-03-19 无锡小天鹅电器有限公司 干衣机
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EP0999302A1 (fr) * 1998-10-21 2000-05-10 Whirlpool Corporation Sèche-linge à tambour avec pompe à chaleur
DE102007016077A1 (de) * 2007-04-03 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Kondensationstrockners mit einem Wärmepumpenkreis, sowie entsprechender Kondensationstrockner
DE102014219457A1 (de) * 2014-09-25 2016-03-31 BSH Hausgeräte GmbH Trockner mit einer Wärmepumpe und einer Zusatzheizung sowie Verfahren zu seinem Betrieb

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ES2725686A1 (es) 2019-09-26
EP3533921A1 (fr) 2019-09-04
CN110219153A (zh) 2019-09-10
PL3533921T3 (pl) 2023-12-04

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