EP4053324A1 - Wäschebehandlungsmaschine - Google Patents

Wäschebehandlungsmaschine Download PDF

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Publication number
EP4053324A1
EP4053324A1 EP22155568.3A EP22155568A EP4053324A1 EP 4053324 A1 EP4053324 A1 EP 4053324A1 EP 22155568 A EP22155568 A EP 22155568A EP 4053324 A1 EP4053324 A1 EP 4053324A1
Authority
EP
European Patent Office
Prior art keywords
water
tub
delivery pipeline
pipe
pipeline
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.)
Pending
Application number
EP22155568.3A
Other languages
English (en)
French (fr)
Inventor
Yanhong Chen
Yanglei Zhu
Yongjia Wang
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
Original Assignee
BSH Hausgeraete GmbH
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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP4053324A1 publication Critical patent/EP4053324A1/de
Pending 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 
    • 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
    • D06F39/088—Liquid supply 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state

Definitions

  • the present invention relates to a clothes processing machine, and in particular, to a machine capable of washing clothes.
  • the present invention belongs to the technical field of household appliances.
  • a clothes processing machine generally includes a tub that accommodates clothes.
  • tap water from a public water source needs to be connected to a tub through a pipeline.
  • the tub is filled with a mixed liquid of detergent.
  • a negative pressure may be generated in the pipeline, and the mixed liquid in the tub may be sucked into the pipeline and then may enter an external water source, causing pollution to the public water source.
  • a non-return valve is a means for preventing back suction of the liquid.
  • the non-return valve still has the possibility of failure. If all household clothes processing machines adopt a non-return valve structure, the risk that an urban tap water system is polluted by the mixed liquid of detergent that is sucked back is high. Therefore, product standards of some countries or regions put forward strict requirements for this.
  • a washing-drying machine which includes: a tub, a rotary drum rotatably arranged in the tub and configured to receive clothes, a water inlet branch passage, a water outlet branch passage, a ventilation duct which connects the tub to a surrounding environment of the washing-drying machine, and a drying duct.
  • the drying duct includes: a condenser, the condenser being equipped with a distributed spraying device using a liquid to spray the condenser; a fan configured to drive an airflow from an inlet to an outlet through the drying duct; and a heater configured to heat the airflow, the heater being arranged at a down stream relative to the condenser, and the drying duct being connected into the tub at the inlet and the outlet of the drying duct.
  • the condenser is configured for indirect cooling of the airflow
  • the spraying device includes a free air path separated from the drying duct
  • the ventilation duct is connected to the free air path and a case of a distributor that belongs to the water inlet branch passage.
  • the ventilation duct is connected to the spraying device, and can balance an air pressure in a spraying pipeline, which fundamentally prevents an unclean mixed liquid in the tub from being sucked back into the public water source.
  • the structure still has some limitations and disadvantages.
  • water in the spraying pipeline is easy to enter the ventilation duct, which wastes the water that enters the ventilation duct and weakens the flushing effect.
  • a special design is required, such as increasing a pipe diameter of the spraying pipeline located at a down stream of a joint of the ventilation duct.
  • the pipe diameter of the spraying pipeline is increased, the kinetic energy of water is weakened, and the flushing effect is worsened.
  • the fluid resistance may be caused because the pipe diameter of the water delivery pipeline is small, or the water delivery pipeline is divided into a plurality of pipelines, or the pipeline has a large bending, etc.
  • a purpose of the present invention is to improve an existing clothes processing machine, and in particular, to improve a water delivery system of the clothes processing machine.
  • Embodiments of the present invention include a clothes processing machine, including: a tub which accommodates clothes; and a box which is fluid-connected to the tub and from which a liquid in the box is capable of flowing into the tub under gravity.
  • the tub is capable of accommodating a liquid used for clothes processing, and the box is in communication with ambient atmosphere.
  • a first end of a water delivery pipeline is in communication with an external clean water source through a water valve, and a second end is in fluid communication with the tub.
  • the water delivery pipeline includes a constricted section, in which section the water delivery pipeline has a flow cross-section gradually reduced along a water flow direction.
  • One end of a ventilation pipeline is fluid-connected to the constricted section of the water delivery pipeline or fluid-connected next to a down stream of the constricted section, and the other end of the ventilation pipeline is fluid-connected to the box.
  • the ventilation pipeline is connected to the water delivery pipeline, which can prevent a liquid in a tub from being sucked back into an external clean water source.
  • a flow speed of water increases, and a negative pressure is generated. Under the negative pressure, water is less likely to enter the ventilation pipeline against a pressure direction.
  • a utilization ratio of water is higher, and water resources are saved.
  • a flow speed of water increases after the water passes through the constricted section, which makes it easier to overcome a fluid resistance at a down stream.
  • water outputted from the water delivery pipeline has a better cleaning effect when being used for flushing.
  • technical effects brought by the improved clothes processing machine are very remarkable, which makes a great contribution to the complex problems existing in the existing water delivery system.
  • the tub is connected to a heat exchange chamber, and the second end of the water delivery pipeline is in communication with the heat exchange chamber, to provide water used for cleaning and/or heat exchange.
  • the water valve optionally provides a water flow having a first flow rate that is relatively large or a water flow having a second flow rate that is relatively small; the second end of the water delivery pipeline is connected to a water division device; a first water division pipe and a second water division pipe are connected between the water division device and the heat exchange chamber; and the water division device is arranged to guide the water flow having the first flow rate to the first water division pipe, and guide the water flow having the second flow rate to the second water division pipe according to different flow speeds from the water delivery pipeline.
  • the water flow having the first flow rate that is relatively large may be used for flushing the heat exchange chamber, and the water flow having the second flow rate that is relatively small may exchange heat with process air passing through the heat exchange chamber during a drying process. Since the down stream of the water delivery pipeline is divided into two water pipes, the fluid resistance increases, and improving the kinetic energy of water through the constricted section is particularly advantageous.
  • the box is a treating agent adding box, and is capable of accommodating a clothes treating agent. In this way, there is no need to arrange an additional box in communication with the atmosphere, and the ventilation pipeline is connected to the atmosphere through the existing treating agent adding box.
  • Optional implementations further include: one end of the ventilation pipeline that is connected to the water delivery pipeline is higher than a maximum water level in the tub in a gravity direction. This is particularly necessary because it can be prevented that water in the tub overflows a connection end of the ventilation pipeline and the water delivery pipeline when reaching the maximum water level, causing the air pressure out of balance, and accordingly, a risk of back-suction arising therefrom can be prevented.
  • the maximum water level in the tub may be a water level at which water overflow results from excessive water entering the tub by accident.
  • Optional implementations further include: the water delivery pipeline includes an expansion section at the down stream of the constricted section, the water delivery pipeline has a flow cross-section gradually expanding along the water flow direction at the expansion section, and the ventilation pipeline is connected between the constricted section and the expansion section.
  • the expansion section can reduce a fluid resistance, and can further reduce the amount of water entering the ventilation pipeline.
  • Implementations of the present invention further include: the water delivery pipeline includes a U-shaped water seal formed in a bending manner, and the U-shaped water seal is located between the constricted section and the second end, to cut off a passage between the tub and the box and a passage between the tub and the atmosphere when no water passes through the water delivery pipeline.
  • the U-shaped water seal can prevent wet and hot process air in the tub from overflowing from the machine through the water delivery pipeline and the ventilation pipeline.
  • a function of the constricted section on the water delivery pipeline is thus particularly obvious: due to the function of the constricted section, the flow speed of water flow increases, and the kinetic energy of water flow increases. In the process of water supply, a resistance generated by the U-shaped water seal can be broken through, and overflow from the ventilation pipeline can be reduced.
  • Implementations of the present invention further include: the water delivery pipeline includes a first pipe and a second pipe, the ventilation pipeline includes a third pipe, and a connection pipe component connects the first pipe, the second pipe, and the third pipe, where the constricted section is arranged on the connection pipe component.
  • the connection pipe component is arranged for connecting the water delivery pipeline and the ventilation pipeline, which makes the structure and installation simple and is easy to implement.
  • Implementations of the present invention further include: the connection pipe component is fixed to a casing of the clothes processing machine through a bracket.
  • Implementations of the present invention further include: the bracket and the connection pipe component are formed integrally.
  • FIG. 1 is a schematic diagram of a configuration of a clothes processing machine 1, in particular, a clothes washing-drying machine.
  • the clothes processing machine 1 includes a tub 3 located in a casing 2 and accommodating clothes.
  • the tub 3 may accommodate a liquid used for clothes processing during running of a washing program.
  • a rotary drum 4 which is rotatable is arranged in the tub 3.
  • the rotary drum 4 is in fluid communication with the tub 3, and thus a liquid for washing clothes and air for drying clothes can flow between the two.
  • Clothes are actually located in the rotary drum 4 and move with the rotation of the rotary drum 4. Clothes are soaked in a liquid in the tub 3, in particular, a solution mixed with a treating agent, to remove stains from the clothes.
  • a treating agent adding box 5 is fluid-connected to the tub 3, and a liquid in the treating agent adding box 5 may flow into the tub 3 under gravity.
  • the treating agent adding box 5 is connected to an external clean water source. In the washing program, clean water is supplied into the treating agent adding box 5 and mixed with a treating agent that is added into the treating agent adding box 5 in advance, and then an obtained mixture enters the tub 3 and is used for washing clothes.
  • the treating agent adding box 5 is in communication with ambient atmosphere.
  • the tub 3 is further connected to a heat exchange chamber 6.
  • a fan 7 and an air heating passage 8 are successively arranged at a down stream of the heat exchange chamber 6 along a direction of airflow.
  • process air used for drying clothes enters the heat exchange chamber 6, in which a temperature of the process air decreases, and moisture in the process air is condensed and accordingly separated from the process air.
  • the process air passes through the air heating passage 8 and is heated again. Heated process air enters the tub 3 and heats wet clothes, to evaporate moisture in the clothes.
  • Process air carrying the evaporated moisture re-enters the heat exchange chamber 6. The above operations are repeated in cycles until the clothes are dried.
  • a water delivery pipeline 10 supplies, to the heat exchange chamber 6, a water flow having a first flow rate that is relatively large used for cleaning the heat exchange chamber 6, and a water flow having a second flow rate that is relatively small used for cooling process air.
  • a first end 11 of the water delivery pipeline 10 is in communication with the external clean water source through a water valve 21, and a second end 12 is in fluid communication with the tub 3 through the heat exchange chamber 6.
  • the water delivery pipeline 10 provides water flows having different flow rates through the water valve 21. That is, the water valve 21 optionally provides the water flow having the first flow rate that is relatively large or the water flow having the second flow rate that is relatively small.
  • the second end 12 of the water delivery pipeline 10 is connected to a water division device 13.
  • a first water division pipe 14 and a second water division pipe 15 are connected between the water division device 13 and the heat exchange chamber 6.
  • the water division device 13 is arranged to guide the water flow having the first flow rate to the first water division pipe 14, and guide the water flow having the second flow rate to the second water division pipe 15 according to different flow speeds from the water delivery pipeline 10.
  • the first water division pipe 14 is first connected to the fan 7 and then indirectly connected to the heat exchange chamber 6.
  • the water flow having the first flow rate that is relatively large flushes the fan 7, and then enters the heat exchange chamber 6 slightly lower than the fan 7 under gravity, to flush the heat exchange chamber.
  • the first water division pipe 14 may alternatively be directly connected to the heat exchange chamber 6. After passing through the second water division pipe 15, the water having the second flow rate enters the heat exchange chamber 6, exchanges heat with the process air passing through the heat exchange chamber, and cools the process air to condense the moisture in the process air.
  • the water delivery pipeline 10 may also be understood as including the water division device 13, and the first water division pipe 14 and the second water division pipe 15 at a down stream.
  • the water delivery pipeline 10 may alternatively be directly connected to the fan 7 or the heat exchange chamber 6 without dividing a flow.
  • the water delivery pipeline 10 further includes a first pipe 16, a second pipe 17, and a connection pipe component 30 that connects the first pipe 16 and the second pipe 17.
  • the connection pipe component 30 is formed in a three-way pipe shape, and includes: a first branch pipe 31, a second branch pipe 32, and a third branch pipe 33.
  • the first branch pipe 31 is connected to the first pipe 16, the second branch pipe 32 is connected to the second pipe 17, and the third branch pipe 33 is connected to a ventilation pipeline 40.
  • the other end of the ventilation pipeline 40 is fluid-connected to the treating agent adding box 5.
  • the ventilation pipeline 40 includes a third pipe 41.
  • the third pipe 41 connects the third branch pipe 33 and the treating agent adding box 5.
  • the ventilation pipeline 40 is in communication with the atmosphere, and meanwhile, water that unexpectedly enters the ventilation pipeline 40 can flow into the tub 3 through the treating agent adding box 5.
  • An outlet of the first branch pipe 31 and an inlet of the second branch pipe 32 are arranged facing each other, to make water from the first pipe 16 pass through the first branch pipe 31 and then rush forward into the second branch pipe 32 and the second pipe 17.
  • Advantageous implementations further include: the first branch pipe 31 and the second branch pipe 32 extend coaxially. An extending direction of the third branch pipe 33 intersects the first branch pipe 31 and the second branch pipe at angles. Thus, the water from the first pipe 16 is less likely to enter the third pipe 41.
  • connection pipe component 30 is fixed to a casing 2 of the clothes processing machine 1 through a bracket 34, in particular, to a position on the casing 2 close to the top.
  • the bracket 34 and the connection pipe component 30 are formed integrally, and may be, for example, formed integrally by injection molding.
  • the water delivery pipeline 10 includes a constricted section 18.
  • the constricted section 18 is formed on the first branch pipe 31 of the connection pipe component 30.
  • the water delivery pipeline 10 has a flow cross-section gradually reduced along a water flow direction.
  • the third branch pipe 33 is fluid-connected to the constricted section 18 or fluid-connected next to a down stream of the constricted section 18.
  • an expansion section 19 is included on the second branch pipe 32.
  • the water delivery pipeline 10 has a flow cross-section gradually expanding along the water flow direction.
  • the third branch pipe 33 is connected between the constricted section 18 and the expansion section 19, and thus the ventilation pipeline 40 is connected between the constricted section 18 and the expansion section 19.
  • connection pipe component 30 is arranged at a high position, to meet the requirement of being higher than the maximum water level in the tub 3.
  • the second pipe 17 is arranged to be installed and then partially bent to form a U-shaped water seal 20.
  • the U-shaped water seal 20 is a bent part of the second pipe 17, the bent part is enough to store water that remains after the previous water inflow, and the remaining water blocks the flow of gas in the second pipe.
  • the U-shaped water seal 20 is located between the constricted section 18 and the second end 12 of the water delivery pipeline 10, that is, located between a connection end of the ventilation pipeline 40 and the water delivery pipeline 10 and the second end 12 of the water delivery pipeline 10. Thereby, a passage between the tub 3 and treating agent adding box 5, and a passage between the tub and the atmosphere are cut off when no water passes through the water delivery pipeline 10.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP22155568.3A 2021-03-05 2022-02-08 Wäschebehandlungsmaschine Pending EP4053324A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110244939.2A CN115029888A (zh) 2021-03-05 2021-03-05 衣物处理机

Publications (1)

Publication Number Publication Date
EP4053324A1 true EP4053324A1 (de) 2022-09-07

Family

ID=80445495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22155568.3A Pending EP4053324A1 (de) 2021-03-05 2022-02-08 Wäschebehandlungsmaschine

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EP (1) EP4053324A1 (de)
CN (1) CN115029888A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022209938A1 (de) 2022-09-21 2024-03-21 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken mit einem Siphon in einer Spülleitung für ein Gebläse und Verfahren zum Betreiben des Haushaltsgeräts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101560724A (zh) 2008-04-17 2009-10-21 Bsh博世和西门子家用器具有限公司 具有通风的滚筒的洗涤-烘干机
WO2015083061A1 (en) * 2013-12-05 2015-06-11 Indesit Company S.P.A. Household washing and drying appliance
US20190100864A1 (en) * 2017-09-29 2019-04-04 Samsung Electronics Co., Ltd. Bubble generator and washing machine having the same
EP2902540B1 (de) * 2014-01-30 2020-11-04 Candy S.p.A. Waschmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101560724A (zh) 2008-04-17 2009-10-21 Bsh博世和西门子家用器具有限公司 具有通风的滚筒的洗涤-烘干机
WO2015083061A1 (en) * 2013-12-05 2015-06-11 Indesit Company S.P.A. Household washing and drying appliance
EP2902540B1 (de) * 2014-01-30 2020-11-04 Candy S.p.A. Waschmaschine
US20190100864A1 (en) * 2017-09-29 2019-04-04 Samsung Electronics Co., Ltd. Bubble generator and washing machine having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022209938A1 (de) 2022-09-21 2024-03-21 BSH Hausgeräte GmbH Haushaltsgerät zur Pflege von Wäschestücken mit einem Siphon in einer Spülleitung für ein Gebläse und Verfahren zum Betreiben des Haushaltsgeräts

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