EP3237674B1 - Appareil de séchage du linge équipé d'une pompe de vidange de liquide - Google Patents

Appareil de séchage du linge équipé d'une pompe de vidange de liquide Download PDF

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Publication number
EP3237674B1
EP3237674B1 EP14816317.3A EP14816317A EP3237674B1 EP 3237674 B1 EP3237674 B1 EP 3237674B1 EP 14816317 A EP14816317 A EP 14816317A EP 3237674 B1 EP3237674 B1 EP 3237674B1
Authority
EP
European Patent Office
Prior art keywords
liquid
removable unit
liquid pump
housing
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
EP14816317.3A
Other languages
German (de)
English (en)
Other versions
EP3237674A1 (fr
Inventor
Nicola Reid
Giuseppe Rossi
Gabriele Missio
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Publication of EP3237674A1 publication Critical patent/EP3237674A1/fr
Application granted granted Critical
Publication of EP3237674B1 publication Critical patent/EP3237674B1/fr
Active legal-status Critical Current
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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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering 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
    • D06F58/20—General details of domestic laundry dryers 
    • 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 
    • D06F58/22—Lint collecting 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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

Definitions

  • the invention relates to a laundry drying apparatus, in particular a dryer.
  • EP 2 341 183 B1 discloses a laundry drying apparatus having a condensation liquid (water) collector located in the lower part of the laundry drying apparatus.
  • Two pumps are disposed within the liquid collector.
  • a first pump is draining liquid (condensation water) from the liquid collector to a condensation water collection drawer disposed at an upper part of the laundry treatment apparatus.
  • a second pump circulates liquid (condensation water) from the liquid collector to a cleaning device which is using the liquid for cleaning at least one heat exchanger positioned within a drying air circuit of the laundry treatment apparatus. After cleaning the at least one heat exchanger the liquid is loaded with laundry fibers and returns into the liquid collector.
  • the laundry fibers and/or other particles contained in the liquid could affect the functionality and efficiency of the pump which is adapted to drain the liquid from the liquid collector.
  • a laundry drying apparatus - in the following description also denoted in brief "apparatus” - comprises a cabinet and a laundry storing compartment arranged within the cabinet for receiving laundry to be dried.
  • An air channel is arranged within the cabinet and adapted to guide drying air from at least one air outlet of the laundry storing compartment to at least one air inlet of the laundry storing compartment.
  • the apparatus comprises a lint collecting component which is arranged in the air channel, thereby exposed to the drying air and receptive for the deposition of lint carried by the drying air.
  • a wet cleaning unit is provided, having a nozzle for supplying liquid (e.g. water) for washing lint from the lint collecting component. After this washing process, the liquid supplied for washing or cleaning the lint collecting component is collected by a liquid collector arranged within the apparatus.
  • the wet cleaning unit is adapted to wash off the lint collected at the lint collecting component.
  • the liquid collected in the liquid is containing lint (at least under normal operation where lint has been collected at the lint collecting component and has been washed off by the washing liquid).
  • the apparatus comprises a liquid pump having a motor, a liquid conveying element driven by the motor and a conveying element housing wherein the liquid pump is fluidly connected to the liquid collector.
  • the liquid pump is adapted to drain the liquid collected in the liquid collector (e.g. to a condensate container disposed within the apparatus or to a wastewater system). As the liquid collected in the liquid collector (normally) contains lint, consequently the liquid pump is adapted to pump lint-containing liquid out of the liquid collector.
  • the conveying element housing comprises a removable unit forming a section or a part of the conveying element housing.
  • the removable unit is adapted or configured such that it is manually removable, e.g. is manually removable by a user.
  • the removable unit is removed from the liquid pump or its conveying element housing, at least a portion of the conveying element and/or the inner volume of the conveying element housing are exposed for user and/or service personal maintenance.
  • Providing such a liquid pump having a conveying element housing with a removable unit allows easy access to the liquid pump, especially to its liquid conveying element, by a user.
  • lint or foreign objects contained in the liquid to be drained by the liquid pump could be easily removed from the interior of the liquid pump by a user thereby avoiding to require a technically skilled user training or any external service assistance.
  • Permanent blocking the liquid pump's functionality by accumulated lint or other foreign particles/objects can be removed or resolved by providing the removable unit which allows accessibility to the liquid pump by a user in a facile manner. Of course simple maintenance is also provided to professional service.
  • the liquid for washing or cleaning the lint collecting component is preferably condensation water and/or a (specific) washing liquid.
  • the liquid collector is preferably collecting condensation water and/or washing liquid.
  • the lint collecting component is designed or configured to collect lint (fluff) intentionally. This can be made for example by a filter unit which is filtering or catching lint and other particles from the drying air.
  • the lint collecting component is another (in relation to the intended collection) or an additional component that collects or catches lint or other particles unintentionally.
  • Such an embodiment may be any component (e.g. a heat exchanger) within the apparatus whose efficiency is reduced by lint deposition or any particle deposition.
  • the laundry storing compartment is a drum or a rotatable drum.
  • the drum is particularly rotatable around a (or a substantially) horizontal axis.
  • the liquid conveying element comprises or is constituted by a pumping hydraulics, e.g. hydraulic parts of the liquid pump.
  • this pump hydraulics is separated from the motor and/or electrical parts of the liquid pump, e.g. by a sealing, to avoid liquid passing to the electrical parts.
  • no additional measure is needed to prevent any unintended contact and damage with respect to the electrical parts, even if the pump hydraulics and/or the conveying element housing are accessible for a user due to the removed removable unit.
  • the lint collecting component is designed or adapted according to at least one of the following:
  • the filter unit is arranged within the air channel downstream the laundry storing compartment and upstream the heat exchanger in order to implement an efficient filter result.
  • the lint collecting component comprises only a filter unit.
  • the filter unit is the only (intentional) fluff filtering device arranged within the apparatus such that in a cost-saving manner no additional lint filter is necessary at other positions in the apparatus. For example, no lint filter is needed in the region of the loading door or the outlet of the laundry storing compartment.
  • the liquid collector is arranged and adapted to collect the liquid after flowing over the lint collecting element and to guide the collected liquid towards the liquid pump in order to provide a facile fluid connection between the liquid collector and the liquid pump.
  • the nozzle of the wet cleaning unit is arranged such that it directs the liquid flowing out of the nozzle towards the front surface of the filter unit or the front surface of the heat exchanger.
  • the front surface is defined as the surface of the filter unit or the heat exchanger where the drying air flowing in the air channel passes first the filter unit or the heat exchanger, respectively.
  • the filter unit has more than one filter. In such a case the front surface is a or the surface of the first filter.
  • the liquid pump has a rotatable conveying element.
  • the axis of rotation of such a conveying element is particularly in a vertical or horizontal direction.
  • the liquid conveying element is a pump wheel or an impeller.
  • the liquid pump and the removable unit are configured such that during removing or inserting the removable unit from or to the liquid pump the following features are implemented:
  • the removable unit is forming a section or part of the conveying element housing.
  • the removable unit comprises a bottom section or a sidewall section or a bottom and sidewall section of the conveying element housing.
  • the bottom section and/or sidewall section is acting as a partition wall in relation to a filter housing (see below) of the liquid pump filter or to the liquid collector.
  • a sealing surface or sealing element is provided at an abutment surface or abutment edge, which is arranged or formed between the removable unit and the surface or edge where the removable unit abuts at the conveying element housing, when the removable unit is positioned at the conveying element housing.
  • the removable unit comprises at least a portion of an inflow or outflow opening of the conveying element housing.
  • the removable unit is able to provide a controlled liquid flow into or out of the conveying element housing and/or to provide a defined position for the liquid flow into or out of the housing.
  • the inflow or outflow opening can be cost-saving realized in case the removable unit forms at least a part of a partition wall to a filter housing of the liquid pump or to a liquid collector. Then the inflow or outflow opening could be implemented by a hole or a hole-like geometry in the partition wall.
  • the removable unit comprises a liquid filter element which is arranged at an inflow or outflow section or at an inflow or outflow opening of the liquid pump when the removable unit is located in its operational position at the liquid pump.
  • the liquid to be drained is automatically filtered (from lint or other particles) by the liquid filter. This may help to fulfill specific environmental requirements and/or to remove fluff and/or particles from the pumped liquid that could result in unwanted deposition in the liquid path downstream the filter.
  • a or the liquid filter element is arranged at an inflow or outflow section (or opening) of the liquid pump. Further, this liquid filter element is exposed or accessible for maintenance by a user, when the removable unit is removed from the conveying element housing. Consequently, the liquid pump and its conveying element can be kept free from lint and other particles in a user-friendly manner thereby avoiding any professional service assistance.
  • a user-friendly maintenance of the liquid filter element is provided, if the liquid filter element is removably arranged, integrally arranged or mounted at the removable unit. Implementing such a design, the liquid filter element could be automatically removed from the liquid pump by removing the removable unit.
  • the liquid pump comprises a liquid filter housing for receiving a or the liquid filter element.
  • the liquid filter housing and a or the liquid filter element are designed such that the respective liquid filter element is received removably or fixedly at or in the liquid filter housing.
  • the filter housing is connected to the conveying element housing or integrally formed with the conveying element housing.
  • the liquid pump further comprises a separation wall which partially separates the inner volumes of the conveying element housing and the liquid filter housing.
  • the separation wall is arranged at the liquid filter element or the removable unit.
  • the separation wall is portion of the liquid filter element or of the removable unit thus providing a user-friendly maintenance of the liquid pump by handling only a low number of parts.
  • the separation wall is configured and arranged such that it is removable when the removable unit is removed from its operational position.
  • the separation wall can be repaired or replaced in a facile manner, if there should happen any damage on this separation wall thereby avoiding a potential substitution of the whole removable unit.
  • the separation wall particularly comprises a passage between the conveying element housing and the liquid filter housing.
  • the separation wall provides an open passage between the conveying element housing and the liquid filter housing.
  • Such a separation wall contributes to a defined flow path for the liquid into and/or a controlled flow of liquid through the liquid pump thereby providing its efficiency.
  • the removable unit comprises a handle or gripping element which is adapted to be griped by a user, when she/he intends to insert the removable unit to the liquid pump or to remove the removable unit from the liquid pump.
  • the cabinet of the apparatus comprises a cabinet opening through which the removable unit can be removed from the liquid pump or can be inserted to the liquid pump.
  • the cabinet opening may be covered by a door-like element, e.g. a lid, cover, panel, flap or a similar part.
  • This door-like element is arranged at the cabinet particularly as an element separate from other cabinet doors (e.g. dedicated for a filter unit or an air channel).
  • the cabinet opening for receiving the removable unit is provided preferably in the basement of the cabinet. Even if the cabinet opening may be arranged at a front side or rear side of the cabinet, the opening for inserting the unit to the pump and taking it off therefrom is preferably provided at a lateral side (side wall) of the cabinet.
  • the latter arrangement of the cabinet opening allows a user-friendly access to the removable unit and at the same time this cabinet opening does not affect the desired space-saving arrangement of additional cabinet openings and doors (e.g. for a filter unit or an air channel) in the basement region, particularly at its front side.
  • the liquid pump is arranged in a base unit of the apparatus wherein this base unit provides a receptacle for receiving and mounting the liquid pump.
  • the receptacle is open towards to exterior of the apparatus and the removable unit can be removed and inserted through the opening of the receptacle.
  • the 'the receptacle provides space for receiving and mounting the liquid pump does not necessarily mean that the pump is installed through the opening described here through which the removable unit is extracted from and re-inserted to the pump.
  • the receptacle opening is covered by a door-like element (e.g. lid or panel), which forms a part of the apparatus cabinet.
  • the base unit comprises a bottom shell providing the receptacle. This bottom shell provides a stable arrangement for the liquid pump within the base region of the apparatus.
  • the liquid pump is arranged within the apparatus cabinet at a front or rear portion of the cabinet.
  • the liquid pump is arranged at a bottom portion of the cabinet.
  • the bottom portion is provided by a base unit of the apparatus.
  • the liquid pump is preferably arranged adjacent or proximate to an outer wall and/or a (lateral) side wall of the cabinet or of the base unit. Accordingly, the removable unit can be easily arranged adjacent to an outer or side wall of the cabinet thus providing a user-friendly access to the removable unit.
  • a filter unit is removably arranged within the air channel wherein the air channel has a filter unit opening towards the outside of the apparatus cabinet.
  • the removable unit is arranged in its operational position such that it can be removed through the filter unit opening of the air channel.
  • the removable unit is preferably removed when the filter unit is removed from the air channel. Therefore, handling of the filter unit and the removable unit with respect to maintain a filter unit and the liquid pump by the user is possible in a time-saving manner.
  • the removable unit comprises a cover or lid section which is forming a closing cover or closing lid with respect to the conveying element housing and/or to at least one liquid filter housing at the liquid pump.
  • the liquid filter housing is mechanically connected to the conveying element housing.
  • the apparatus comprises a liquid draining member which is arranged in or at a lower portion of the apparatus and which is in fluid connection with the inner volume of the liquid collector or conveying element housing.
  • the liquid draining member comprises a closing element, particularly a valve.
  • the liquid draining member is adapted to be opened and closed by a user. This can be achieved preferably by a valve-function of the closing element (e.g. a valve).
  • Liquid can be drained manually from the liquid collector or from the conveying element housing to the exterior of the apparatus cabinet. Performing such a manual draining of liquid before removing the removable unit for maintenance prevents potential liquid spilling during the maintenance measures.
  • the liquid draining member is integrated with the removable unit. Particularly, it is integrated with a or the cover section or lid section of the removable unit.
  • the liquid draining member is at least partially formed in a or the handle element.
  • This handle element is adapted for being gripped by a user when removing or inserting the removable unit.
  • the liquid draining member is able to have an additional function to handle the removable unit which simplifies a user-friendly handling of the whole liquid pump.
  • the liquid draining member comprises a lever element which is pivotably supported and which is forming part of a valve.
  • the lever element is pivotable between a first angular position and a second angular position which positions correspond with a closed state and an opened state of the valve.
  • the liquid draining member is provided to have a compact design.
  • the removable unit comprises at least one connector element.
  • the conveying element housing or a or the liquid filter housing comprises at least one mating connector element cooperating with the at least one connector element of the removable unit.
  • the removable unit can be removed from the conveying element housing and/or a or the liquid filter housing.
  • the removable unit can be connected to the conveying element housing and/or a or the liquid filter housing.
  • the connector element(s) and the mating connector element(s) are configured in any suitable manner for providing a detachable connection between the removable unit and the conveying element housing (or optionally the liquid filter housing).
  • the connection is provided by at least one screw, clip, clamping element, latch or such like.
  • connection is preferably simultaneously used for providing a bias force on a sealing element between the removable unit and the conveying element housing.
  • the desired sealing functionality is ensured automatically by providing the mechanical connection.
  • the liquid filter housing is fixed or integral part of the conveying element housing in such a manner that connecting the removable unit to the liquid filter housing is realizing the connection between the removable unit and the conveying element housing.
  • the at least one connector element is configured as a screw connector element or bayonet connector element. This element is mating with a corresponding screw connector element or bayonet connector element formed at the conveying element housing, or formed at the liquid filter housing which is in fluid connection to the conveying element housing.
  • the removable unit and the conveying element housing can be connected and released by screw connection or bayonet connection which provides a user-friendly and simple handling of the removable unit.
  • the removable unit comprises at least one alignment element.
  • a corresponding at least one mating alignment element is provided at the conveying element housing or at another component of the apparatus being positionally fixed or stationary connected to the conveying element housing.
  • the removable unit is positionally aligned with the conveying element housing when the removable unit is positioned at the conveying element housing or during a movement of the removable unit for inserting it at the conveying element housing.
  • the guiding function of the corresponding alignment element(s) and mating alignment element(s) provide an appropriate insertion and operational position of the removable unit.
  • the alignment element(s) of the removable unit is/are provided at a grip element or grip section of the removable unit in order to facilitate the handling and aligning of the removable unit.
  • the draining outlet of the liquid pump is connected to
  • the draining outlet is connected or connectable to the inlet and additionally to the draining hose such that there are provided two different draining directions out of the liquid pump.
  • a manual or automatic switching between both draining directions is provided - depending on physical, operational or environmental circumstances.
  • the apparatus has at least one of the following features:
  • FIGS. 12-15 , 22-26 show embodiments with an extra opening for the removable unit of said liquid pump, which concerning said further opening are not part of the invention according to claim 1.
  • Fig.1 shows a schematically depicted laundry drying apparatus 2 which in brief is denoted “apparatus” and in this embodiment is a heat pump tumble dryer.
  • the tumble dryer 2 comprises a partly and schematically depicted cabinet 3 which supports or encloses several components and parts described hereinafter.
  • the cabinet 3 encloses a heat pump system 4, including a closed refrigerant loop 6 which comprises in the following order of refrigerant flow B: a first heat exchanger 10 acting as evaporator for evaporating the refrigerant and cooling drying air, a compressor 14, a second heat exchanger 12 acting as condenser for cooling the refrigerant and heating the drying air, and an expansion device 16 from where the refrigerant is returned to the first heat exchanger 10.
  • the heat pump system 4 forms the refrigerant loop 6 through which the refrigerant is circulated by the compressor 14 as indicated by arrow B.
  • the drying air flow A within the apparatus 2 is guided through a compartment 18 of the home appliance 2, i.e. through a compartment for receiving articles to be treated, e.g. a drum 18.
  • the drum 18 is rotatable.
  • the drum 18 is driven by a motor wherein the drum 18 and the motor are connected by a belt in contact with the circumference of the drum 18.
  • the articles to be treated are laundry 19, textiles or the like.
  • the drying air flow is indicated by arrows A in Fig. 1 and is driven by a drying air blower 8.
  • a drying air channel 20 guides the drying air flow A outside the drum 18 and includes different sections, including the section forming a battery channel 20a in which the first and second heat exchangers 10, 12 are arranged.
  • the drying air exiting the second heat exchanger 12 flows into a rear channel 20b in which the drying air blower 8 is arranged.
  • the air conveyed by the blower 8 is guided upward in a rising channel 20c to the backside of the drum 18 which has a kind of drum inlet 26 or inlet for the drying air.
  • the air exiting the drum 18 through the drum outlet 28 (which corresponds to the loading opening 21 of the drum 18 and wherein the loading opening 21 is covered by a loading door 24) is filtered by an optional lint filter 22 arranged close to the drum outlet 28 in or at the channel 20.
  • the drum outlet 28 is acting as an air outlet of the drum 18.
  • the optional lint filter 22 is arranged in a front channel 20d forming another section of channel 20 which is arranged behind and adjacent the front cover of the apparatus
  • a filter unit 52 having at least one air filter is arranged in the cabinet 3 of the apparatus 2 to catch lint, fluff and other particles from the drying air before this drying air enters the first heat exchanger 10.
  • the filter unit 52 is removably arranged within the air channel 20 downstream the drum 18 and upstream the first heat exchanger 10.
  • the filter unit 52 is arranged in a basement or base unit 5 which is arranged in a bottom region of the apparatus 2.
  • the base unit 5 comprises a bottom shell 33 which may be closed by an upper top shell.
  • the air channel 20 has a channel opening 54 towards a cabinet opening 56 which can be opened and closed by a cabinet door 58.
  • a wet cleaning unit 60 is arranged close to the first heat exchanger 10 and the filter unit 52. It has a nozzle 62 (only schematically depicted) for supplying liquid for washing lint and other particles from the first heat exchanger 10 and/or the filter unit 52.
  • the nozzle 62 is arranged such that it directs the liquid flowing out of the nozzle 62 towards (not explicitly shown) the front surface of the filter unit 52 and/or the front surface of the first heat exchanger 10.
  • the supplied liquid containing lint and possibly other particles is collected by a liquid collector 30 which is connected to an extractable liquid collection drawer 40 via a drain pipe 46, a liquid pump 36 and a drawer pipe 50.
  • the liquid is collected after flowing over the filter unit 52 and/or the first heat exchanger 10 by the liquid collector 30. Further the liquid collector 30 is guiding the collected liquid towards the liquid pump 36. Then the collected liquid can be pumped from the liquid collector 30 to the drawer 40 which is arranged at an upper portion of the apparatus 2 from where it can be comfortably withdrawn and emptied by a user.
  • the drain pipe 46 is connected to a pump inlet 37 whereas a draining outlet 38 of the liquid pump 36 is connected to an inlet of the liquid collection drawer 40.
  • the draining outlet 38 may be additionally or alternatively connected to a draining hose arranged at least partially outside the cabinet 3. Using such a draining hose, the drained liquid can be guided to a domestic liquid sink or to a wastewater system.
  • the draining hose and/or the drawer 40 are provided to drain and/or receive the liquid from the liquid collector 30. Two different draining directions or sinks may be provided and - depending on the circumstances - one of these draining sinks is chosen automatically or manually by a user.
  • Condensate formed at the first heat exchanger 10 is optionally also collected and guided to the liquid collector 30.
  • the condensate of the first heat exchanger 10 and the liquid supplied by the wet cleaning unit 60 are collected each by separate collectors.
  • the filter unit 52 and the first heat exchanger 10 can be each regarded as a lint collecting component.
  • the filter unit 52 is intentionally collecting lint and other particles, whereas the heat exchanger 10 is unintentionally collecting lint and other particles.
  • Arranging the liquid pump 36 can be made at any suitable location within the apparatus 2. For example, different from the schematic illustration in Fig. 1 and depending on the construction design of the liquid pump 36, a drain pipe 46 is not needed and/or the liquid pump 36 is arranged at least partially within the liquid collector 30. In general, it is preferred to arrange the liquid pump 36 in the region of the base unit 5.
  • Fig. 2 shows an embodiment of the liquid pump 36 which comprises an electrical part (section) 64 and a hydraulic part (section) 66.
  • the electrical part 64 has a motor 68 which is driving a liquid conveying element configured as an impeller 70.
  • the impeller 70 has a driven rotor 72 carrying a plurality of blades 74.
  • the liquid conveying element or impeller 70 is surrounded by a conveying element housing 76 which is fluidly connected to the liquid collector 30. This fluid connection is made by a drainage (sucking) hole 78 provided at a disc-like first housing wall 80 of the hydraulic part 66.
  • This drainage hole 78 is acting as the pump inlet 37 ( Fig. 1 ) whereas the impeller 70 drains the liquid through the draining outlet 38.
  • the conveying element housing 76 comprises a removable unit 82 which forms a section or part of the conveying element housing 76.
  • the first housing wall 80 is integral part of the removable unit 82.
  • the removable unit 82 is adapted to be manually removed by a user along a direction orthogonally (horizontally) relative to a (vertical) rotation axis 84 ( Fig. 2 ) of the motor 68.
  • the removable unit 82 comprises a finger slot-like handle 86.
  • the removable unit 82 is carrying as integral part an alignment element 88, which in this embodiment has a hexagonal cross section.
  • the alignment element 88 cooperates with a mating alignment element 89 ( Fig. 8 ) in order to positionally align and guide the removable unit 82 with the conveying element housing 76 and to keep the removable unit 82 in an appropriate operation position, when a user is inserting the removable unit 82 at the conveying element housing 76.
  • the conveying element housing 76 comprises a semi-cylindrical receiving wall 94 having a receiving groove 96 at the pump inlet 37.
  • the receiving groove 96 is receiving the first housing wall 80 in order to close and seal the inlet region of the conveying element housing 76.
  • the first housing wall 80 is acting as a sealing surface or sealing element at the conveying element housing 76.
  • the removable unit 82 comprises a part-cylindrical second housing wall 98 which is arranged between the first housing wall 80 and the handle 86. When the removable unit 82 is in its inserted operation position, the second housing wall 98 completes the desired closed and sealed state of the conveying element housing 76.
  • first and second housing walls 80, 98 are adapted to act as a bottom and sidewall section of the conveying element housing 76. At the same time, both housing walls 80, 98 work as a closing cover of the conveying element housing 76. Both housing walls 80, 98 are operative as a sealing element at an abutment edge 99 where the inserted removable unit 82 abuts at the conveying element housing 76.
  • the impeller 70, particularly its blades 74, and the inner volume 90 of the conveying element housing 76 are accessible and exposed for user or service maintenance ( Fig. 4, Fig. 5 ).
  • the impeller 70 and the inner volume 90 can be easily cleaned from lint, fluff and other particles. Due to the simplicity of removing the removable unit 82 and due to simple access thereto (see below), professional service assistance for maintaining an impeller blocked by fluff or other particles is not mandatory and user servicing may be sufficient.
  • the electrical part 64 Since the liquid pump 36 is installed permanently in a pre-defined mounting position within the apparatus 2, the electrical part 64 is not accessible for a user during removing/inserting the removable unit 82 from/to the liquid pump 36.
  • the electrical part 64 comprises an electrical quick connector 100 which is part of an electrical plug connection (not shown) within the apparatus 2.
  • the electrical connection from and to the liquid pump 36 has not to be disconnected/connected and the mounting position of the liquid pump 36 remains unmodified. Insofar any potential damages of the liquid pump 36 by user maintenance are avoided.
  • the embodiment of the liquid pump 36 according to Figs. 2 to 5 is preferably used in case the accessibility to the conveying element 70 and the inner volume 90 has to be obtained along a horizontal or lateral direction due to a vertical extension of the liquid pump 36 and/or its arrangement close to a collector bottom 31 of the liquid collector 30 ( Fig. 11 ).
  • the dryer 2 comprises a maintenance opening 102 in the region of its base unit 5.
  • the maintenance opening 102 is arranged at a front side 104 of the dryer 2 and closed by a maintenance panel or cover 106.
  • the maintenance cover 106 is pivoted to allow access to the maintenance opening 102 and subsequently to the removable unit 82.
  • the removable unit 82 can be removed in lateral horizontal direction from the liquid pump 36 and can be re-inserted to the liquid pump 36 in a lateral movement ( Figs. 8, 9 ).
  • the removable unit 82 is removed as shown in Fig.
  • the conveying element or impeller 70 and the inner volume 90 are accessible and exposed for maintenance by fingers or another elongate tool by a lateral movement along the bottom 31 of the collector 30. Particularly the impeller 70 and the inner volume 90 are accessible for removing lint and other particles.
  • the removable unit 82 is reinserted to the liquid pump 36, the hydraulic part 66 of the liquid pump 36 is closed and no longer accessible ( Fig. 11 ).
  • a position switch or position detector element may be provided at the apparatus which detects whether the removable element has been correctly returned to its operational position. Such signal is provided to the control unit of the apparatus which in turn may block the operation of the apparatus and/or may indicate the missing or incorrectly aligned removable unit 82.
  • Fig. 8 shows the mating alignment element 89 provided at an interior wall 92 which is essentially extended in a vertical direction.
  • This interior wall 92 is positionally fixed at the base unit 5 and consequently stationary connected to the conveying element housing 76.
  • the mating alignment element 89 is arranged directly at the conveying element housing 76 or the interior wall 92 is part of the conveying element housing 76.
  • Fig. 12 and Fig. 13 show a further embodiment of arranging the liquid pump 36 in the region of the base unit 5 at the bottom shell 33.
  • the cover 106 is preferably provided for allowing access to the liquid collector 30 and/or the heat exchanger 10 front side and/or the filter unit 52.
  • the base unit 5 shown in Figs. 12 to 14 provides a receptacle 108 for removing and re-inserting the removable unit 82 to the liquid pump 36.
  • the receptacle 108 is covered by a pivotable receptacle cover 110 such that the removable unit 82 can be removed/inserted from/to the liquid pump 36 through a receptacle opening 112 ( Fig. 13 , Fig. 14 ).
  • Fig. 15 shows the same principle of handling the removable unit 82 as it is shown in Figs. 12 to 14 .
  • the liquid pump 36 is arranged within the cabinet 3 at the front side 104 of the base unit 5
  • Fig. 15 shows an embodiment in which the receptacle 108 is at least partially arranged outside the cabinet 3 at the rear side 114 of the base unit 5.
  • the removable unit 82 can be taken off from the pump 36 and re-inserted thereto through the opening 112 when the cover 110 is opened.
  • Fig. 16 to Fig. 26 show a second embodiment of a liquid pump 36. Elements of this second embodiment corresponding at least in their function to elements of the first embodiment are indicated by identical reference numerals.
  • This embodiment of a liquid pump 36 according to Fig. 16 is preferred when the liquid pump 36 is arranged in a horizontal-axis configuration, i.e. when the rotation axis 84 of the motor 68 extends in horizontal direction.
  • the second embodiment of the liquid pump 36 has an additional intermediate section, i.e. a liquid filter housing 116.
  • This filter housing 116 is solidly connected to the conveying element housing 76 and provides a lateral inlet pipe (section) 39 having the pump inlet 37.
  • the pump inlet 37 is in fluid connection to the liquid collector 30.
  • the filter housing 116 is connected to a conveying element housing 76 which provides an outlet pipe 41 having the draining outlet 38.
  • the removable unit 82 comprises a cap 118 which has a liquid draining member 120.
  • the cap 118 is operative as a closing cover of the liquid filter housing 116 ( Fig. 16 , Fig. 18 ).
  • the liquid draining member 120 is adapted to be closed ( Fig. 16 , Fig. 18 ) and opened ( Fig. 17 , Fig. 19 ) by a user for manually draining liquid from the liquid collector 30 or the conveying element housing 76 to the exterior of the cabinet 3.
  • the liquid draining member 120 comprises a valve 122 for closing and opening the liquid draining member 120.
  • the valve 122 has a ball head 124 and a valve seat 126 adapted to selectively close or open a drain passage 128 of the cap 118.
  • the ball head 124 is formed at a lever element 130 which is pivotably supported by a pivot bearing 132 providing a pivot axis 134 ( Fig. 16, Fig. 17 ).
  • the lever element 130 is part of the valve 122.
  • the ball head 124 has a through hole which is part of a drain channel 136 at the lever element 130 for guiding residual liquid away from the liquid pump 36.
  • the drain channel 136 aligns with the drain passage 128 for draining residual liquid.
  • the liquid filter housing 116 is surrounding or receiving a liquid filter element 138.
  • the filter element 138 is arranged close to the pump inlet 37.
  • the filter element 138 is exposed for user maintenance and can be cleaned from collected lint, fluff etc. ( Fig. 20 ).
  • the filter element 138 preferably is (particularly integrally) arranged or mounted at the removable unit 82 and preferably is a portion thereof.
  • the filter element 138 has a semi-cylindrical tube-like wall which is perforated by a filter grid 140 in order to catch lint, fluff and other particles when liquid is guided and pumped from the pump inlet 37 to the draining outlet 38.
  • the first housing wall 80 of the removable unit 82 is operative as a separation wall which partially separates the inner volume 90 of the conveying element housing 76 and the inner volume of the liquid filter 116.
  • the first housing wall 80 is arranged at an axial end of the tube-like filter element 138.
  • the first housing wall 80 is portion of the filter element 138 and of the removable unit 82.
  • the first housing wall 80 is formed of two structures or has a double layer material. The material is preferably elastic to provide an elastic membrane as a kind of sealing element between the conveying element housing 76 and the liquid filter housing 116.
  • the lever element 130 is additionally operative as a handle or gripping element to grip the cap 118 by a user. In its closed position ( Fig. 16 , Fig. 18 ), the lever element 130 can be gripped to turn the cap 118 and to remove the removable unit 82 from the liquid pump 36 ( Fig. 20 ). Accordingly, the lever element 130 can be gripped to insert the removable unit 82 to the liquid pump 36 and to mechanically connect the removable unit 82 and the liquid filter housing 116 in order to ensure appropriate insertion and operational position of the removable unit 82 at the liquid pump 36.
  • the removable unit 82 comprises a screw-like, thread-like or bayonet-like connector element 142 which is corresponding with a mating connector element 144. The latter element 144 is formed at an axial end region of the liquid filter housing 116 such that the removable unit 82 and the conveying element housing 76 can be connected and released by a screw-like or bayonet-like connection.
  • Fig. 21 shows the front axial view of the pump, when the removable unit 82 is removed from the liquid pump 36.
  • the receptacle cover 110 is opened to allow access to the liquid draining member 120.
  • the liquid draining member 120 is opened by pivoting the lever element 130 in order to drain manually residual liquid from the liquid pump 36 ( Fig. 24 ) before removing the removable unit 82 from the liquid pump 36 ( Fig. 25 ).
  • the removable unit 82 is removed and subsequently the liquid pump 36 is accessible for cleaning the impeller 70 and the inner volume 90 of the conveying element housing 76 and, if necessary, the inner volume of the liquid filter housing 116.
  • Arranging and mounting the liquid pump 36 according to Fig. 22 to Fig. 26 is - apart from different design and dimensions of the liquid pump 36 - comparable to the embodiment according to Fig. 12 to Fig. 14 . I.e. the liquid pump 36 is mounted at a pre-determined of the bottom shell 33 where the receptacle 108 is provided for receiving the liquid pump 36.
  • the liquid pump 36 is arranged proximate to the drying air channel 20 and the removable unit 82 can be removed through the drying air channel 20 towards the outside of the cabinet 3.
  • the liquid pump 36 and its removable unit 82 are designed and arranged such that in case the filter unit 52 is removed from the channel opening 54 and the cabinet opening 56, the removable unit 82 can be removed through the channel opening 54 and the cabinet opening 56.

Landscapes

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

Claims (16)

  1. Dispositif de séchage du linge, en particulier un sèche-linge (2), comprenant:
    une enceinte (3),
    un compartiment de stockage du linge (18) agencé à l'intérieur de l'enceinte (3) destiné à recevoir le linge (19) à sécher,
    un canal d'air (20) agencé à l'intérieur de l'enceinte (3) et apte à guider l'air de séchage (A) provenant d'au moins une sortie d'air (28) du compartiment de stockage du linge (18) vers au moins une entrée d'air (26) du compartiment de stockage du linge (18),
    un composant collecteur de peluches (10, 52) agencé dans le canal d'air (20) exposé à l'air de séchage (A) et étant prêt à recevoir le dépôt de peluches transporté par l'air de séchage (A),
    une unité de nettoyage humide (60) présentant une buse (62) destinée à alimenter du liquide d'alimentation afin de laver les peluches du composant collecteur de peluches (10, 52),
    un collecteur de liquide (30) apte à collecter le liquide alimenté par l'unité de nettoyage humide (60) afin de laver le composant collecteur de peluches (10, 52), et
    une pompe à liquide (36) comportant un moteur (68), un élément de transport de liquide (70) entraîné par le moteur (68) et un boîtier d'élément de transport (76) qui est raccordé fluidiquement au collecteur de liquide (30),
    la pompe à liquide (36) étant apte à vidanger le liquide contenant des peluches collecté dans le collecteur de liquide (30),
    caractérisé en ce que,
    le boîtier d'élément de transport (76) de la pompe à liquide (36) comprend une unité amovible (82) formant une section du boîtier d'élément de transport (76),
    l'unité amovible (82) est apte à être retirée manuellement par un utilisateur,
    lorsque l'unité amovible (82) est retirée de la pompe à liquide (36), au moins une portion de l'élément de transport (70) ou le volume intérieur (90) du boîtier d'élément de transport (76) est exposé(e) pour une maintenance par l'utilisateur, et
    une unité de filtrage (52) est disposée de manière amovible à l'intérieur du canal d'air (20), le canal d'air (20) présentant une ouverture d'unité de filtrage (54) vers l'extérieur de l'enceinte (3) du dispositif, et l'unité amovible (82) pouvant être enlevée à travers l'ouverture d'unité de filtrage (54).
  2. Dispositif de séchage du linge selon la revendication 1, dans lequel le composant collecteur de peluches est au moins l'un des éléments suivants:
    un échangeur de chaleur (10) disposé à l'intérieur du canal d'air (20) et adapté pour refroidir l'air de séchage (A),
    l'unité de filtrage (52) ayant un filtre à air et étant disposée dans le canal d'air (20) ou au niveau de celui-ci entre le compartiment de stockage du linge (18) et l'échangeur de chaleur (10), et
    une surface de guidage d'air disposée en aval du compartiment de stockage du linge (18) et qui est exposée à un dépôt de peluches.
  3. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel le collecteur de liquide (30) est disposé et adapté pour recueillir le liquide après avoir coulé sur l'élément collecteur de peluches (10, 52) et pour guider le liquide recueilli vers la pompe à liquide (36).
  4. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel la pompe à liquide (36) et l'unité amovible (82) sont configurées de telle sorte que pendant le retrait ou l'insertion de l'unité amovible (82) de/dans la pompe à liquide (36):
    les connexions liquides ou électriques (37 - 39, 41; 100) depuis et à la pompe à liquide (36) ne doivent pas être déconnectées/connectées, ou
    la position de montage de la pompe à liquide (36) dans le dispositif (2) reste inchangée.
  5. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel l'unité amovible (82) comprend une section de fond, une section de paroi latérale ou une section de fond et de paroi latérale (80, 98) du boîtier de l'élément de transport (76) .
  6. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel l'unité amovible (82) comprend au moins une partie d'une ouverture d'entrée ou de sortie (78) du boîtier de l'élément de transport (76).
  7. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes,
    dans lequel l'unité amovible (82) comprend un élément de filtre à liquide (138) qui, lorsque l'unité amovible (82) est située à sa position de fonctionnement sur la pompe à liquide (36), est disposé sur une section d'entrée ou de sortie (37, 39) ou d'ouverture de la pompe à liquide (36), et/ou
    dans lequel, lorsque l'unité amovible (82) est retirée du boîtier de l'élément de transport (76), un ou l'élément de filtre à liquide (138), qui est disposé sur une section d'entrée ou de sortie (37, 39) de la pompe à liquide (36), est exposé pour une maintenance par l'utilisateur.
  8. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel la pompe à liquide (36) comprend en outre un boîtier de filtre à liquide (116) pour recevoir de manière amovible ou fixe un ou l'élément de filtre à liquide (138).
  9. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel l'enceinte (3) comprend une ouverture d'enceinte (102, 112) à travers laquelle l'unité amovible (82) peut être retirée de la pompe à liquide (36) ou insérée dans celle-ci.
  10. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel la pompe à liquide (36) est disposée dans une unité de base (5) du dispositif (2) et l'unité de base (5) fournit un réceptacle (108) pour recevoir et monter la pompe à liquide (36), dans lequel le réceptacle (108) est ouvert vers l'extérieur du dispositif (2) et dans lequel l'unité amovible (82) peut être retirée et insérée à travers l'ouverture (112) du réceptacle (108).
  11. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel la pompe à liquide (36) est disposée à proximité du canal d'air (20) et l'unité amovible (82) peut être retirée par le canal d'air (20).
  12. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel l'unité amovible (82) comprend un couvercle (80, 118) ou une section de couvercle qui forme un couvercle ou couvercle de fermeture du boîtier de l'élément de transport (76) ou un ou le boîtier du filtre à liquide (116) relié au boîtier de l'élément de transport (76).
  13. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, comprenant un élément de drainage de liquide (120) qui
    est disposé dans ou à une partie inférieure (5, 33) du dispositif (2),
    est en liaison fluide avec le volume intérieur (90) du collecteur de liquide (30) ou du boîtier de l'élément de transport (76), et
    comprend un élément de fermeture ou une soupape (122),
    l'élément de drainage de liquide (120) étant adapté pour être ouvert et fermé par un utilisateur pour drainer manuellement le liquide du collecteur de liquide (30) ou du boîtier de l'élément de transport (76) vers l'extérieur de l'enceinte du dispositif (3).
  14. Dispositif de séchage du linge selon la revendication 13,
    dans lequel l'élément de drainage de liquide (120) est intégré à l'unité amovible (82) ou à un ou le couvercle ou une ou la section de couvercle (118) de l'unité amovible (82), et/ou
    dans lequel l'élément de drainage de liquide (120) est au moins partiellement formé dans ou par l'élément de poignée (130), dans lequel l'élément de poignée (130) est adapté pour être saisi par un utilisateur lors du retrait ou de l'insertion de l'unité amovible (82), et/ou
    dans lequel l'élément de drainage de liquide (120) comprend un élément de levier (130) qui est supporté de manière pivotante et qui fait partie d'une soupape (122), dans lequel, en faisant pivoter l'élément de levier (130) entre une première et une seconde position angulaire, la soupape (122) de l'élément de drainage de liquide (120) est fermée et ouverte.
  15. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel l'unité amovible (82) comprend au moins un élément de connexion (142) et le boîtier de l'élément de transport (76) ou un ou le boîtier du filtre à liquide (116) comprend au moins un élément de connexion (144) coopérant avec l'au moins un élément de connexion (142) de l'unité amovible (82), dans lequel, en libérant ou en connectant l'au moins un élément de connexion (142) et l'au moins un élément de connexion apparié (144), l'unité amovible (82) peut être retirée du boîtier de l'élément de transport (76) ou connectée à celui-ci,
    l'unité amovible (82) comprenant en particulier un élément de raccord à vis ou un élément de raccord à baïonnette (142) s'accouplant avec un élément de raccord à vis ou un élément de raccord à baïonnette (144) correspondant formé sur le boîtier de l'élément de transport (76) ou le boîtier du filtre à liquide (116) en liaison fluidique avec le boîtier de l'élément de transport (76) de telle sorte que l'unité amovible (82) et le boîtier de l'élément de transport (76) peuvent être connectés et libérés par raccordement à vis ou à baïonnette.
  16. Dispositif de séchage du linge selon l'une quelconque des revendications précédentes, dans lequel la sortie de vidange (38) de la pompe à liquide (36) est reliée à
    une entrée d'un tiroir de collecte de liquide (40) disposé de manière amovible dans l'enceinte du dispositif (3), ou
    un tuyau de drainage au moins partiellement disposé à l'extérieur de l'enceinte du dispositif (3), dans lequel le tuyau de drainage est adapté pour guider le liquide vers un évier de liquide domestique ou vers un système de traitement des eaux usées.
EP14816317.3A 2014-12-23 2014-12-23 Appareil de séchage du linge équipé d'une pompe de vidange de liquide Active EP3237674B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/079114 WO2016101993A1 (fr) 2014-12-23 2014-12-23 Appareil de séchage du linge équipé d'une pompe de vidange de liquide

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EP3237674A1 EP3237674A1 (fr) 2017-11-01
EP3237674B1 true EP3237674B1 (fr) 2018-12-12

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CN (1) CN107109766B (fr)
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EP3138952B1 (fr) * 2015-09-04 2018-12-05 Arçelik Anonim Sirketi Séchoir à linge
CN110396802B (zh) * 2018-04-24 2022-03-01 青岛海尔洗涤电器有限公司 一种洗干一体机的排水结构及洗干一体机
SI25814A (sl) * 2019-03-20 2020-09-30 Gorenje Gospodinjski Aparati, D.O.O. Kondenzacijski sušilni stroj
CN113873930A (zh) 2019-06-03 2021-12-31 埃科莱布美国股份有限公司 洗碗机水槽和洗碗机设备
CN110552184B (zh) * 2019-08-26 2020-10-23 无锡小天鹅电器有限公司 过滤组件及衣物处理装置
CN113106714A (zh) * 2021-04-16 2021-07-13 江苏友奥电器有限公司 具有自动净水功能的干衣机
KR20230126902A (ko) * 2022-02-24 2023-08-31 삼성전자주식회사 건조기

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IT1237157B (it) * 1989-12-22 1993-05-24 Ocean Spa Metodo realizzativo e macchina asciugatrice a tamburo rotante perfezionata per biancheria
IT236788Y1 (it) * 1995-04-05 2000-08-17 Candy Spa Gruppo integrale di deviazione di flusso a due pompe indipendentie filtro comune per lavatrici e simili
KR20070102056A (ko) * 2006-04-13 2007-10-18 삼성전자주식회사 배수펌프를 구비하는 세탁기
DE102008032800A1 (de) * 2008-07-11 2010-01-14 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Reinigen eines Bauteiles, insbesondere eines Verdampfers einer Kondensatoreinrichtung
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DE102012209826A1 (de) * 2012-06-12 2013-12-12 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Pumpe sowie Verfahren zu seinem Betrieb
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Also Published As

Publication number Publication date
AU2014415237A1 (en) 2017-05-18
WO2016101993A1 (fr) 2016-06-30
CN107109766B (zh) 2019-06-18
AU2014415237B2 (en) 2020-05-21
EP3237674A1 (fr) 2017-11-01
CN107109766A (zh) 2017-08-29

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