EP2221485A2 - Fluid circulation pump adapted to a household appliance - Google Patents
Fluid circulation pump adapted to a household appliance Download PDFInfo
- Publication number
- EP2221485A2 EP2221485A2 EP10382013A EP10382013A EP2221485A2 EP 2221485 A2 EP2221485 A2 EP 2221485A2 EP 10382013 A EP10382013 A EP 10382013A EP 10382013 A EP10382013 A EP 10382013A EP 2221485 A2 EP2221485 A2 EP 2221485A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- circulation pump
- pump according
- heating device
- capsule
- impeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 54
- 239000002775 capsule Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005406 washing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge 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
- D06F39/04—Heating 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
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/083—Liquid discharge or recirculation arrangements
- D06F39/085—Arrangements or adaptations of pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Definitions
- This invention relates to a fluid circulation pump adapted to a household appliance, such as a washing machine or a dishwasher, and which comprises a built-in heating device.
- Known fluid circulation pumps that include heating devices built into said circulation pumps.
- Known circulation pumps comprise a motor that is assembled on a motor body, a hydraulic body that is fixed to the motor body and which comprises a water inlet pipe and a water outlet pipe, an impeller operated by the motor, which is housed inside the hydraulic body, and a heating device that heats the water entering the fluid circulation pump.
- the hydraulic body which is substantially cylindrical, has a first part through which water enters in its interior and a second part that is fixed to the motor body.
- the heating device is ring-shaped and forms part of the cylindrical wall of the hydraulic body, said heating device being fixed to one end of the first part and to one end of the second part of the hydraulic body.
- Document GB 2427437 A describes a circulation pump in which the heating device is arranged on one end of the hydraulic body with the result that, at least partially, it closes the opening of said hydraulic body, with the heating device comprising a thick-film resistor plate in direct contact with the pumped water.
- document ES 2217864 T3 discloses a device designed to heat the washing fluid of a dishwasher that comprises resistive heating elements that are positioned on the outside of the hydraulic body.
- the hydraulic body comprises a cover and a lower body, which are made of a plastic or metallic material in accordance with the arrangement of the resistive heating elements.
- the object of the invention is to provide a fluid circulation pump adapted to a household appliance, such as a washing machine or a dishwasher, as defined in the claims.
- the circulation pump comprises a motor that is attached to a motor body, a hydraulic body that is fixed to the motor body and which comprises a water inlet pipe and a water outlet pipe, an impeller operated by the motor and which is housed, at least partially, inside the hydraulic body, and a heating device for the water entering the fluid circulation pump comprising at least one heating element and a conducting element in thermal contact with the heating element.
- the heating device is arranged inserted inside the hydraulic body, thereby simplifying the assembly, as said heating device is separated from the motor body.
- the circulation pump comprises a capsule that is connected to the motor body, and which delimits, along with the heating device, an impeller chamber, the impeller being housed at least partially in the impeller chamber.
- the fluid circulation pump 1 adapted to a household appliance such as a washing machine or a dishwasher, comprises a motor body 15 in which is assembled a synchronous electric motor 2 that comprises a stator 3 that is fixed to the outside of the motor body 15 and a permanent-magnet rotor 4 that is housed in a rotor chamber 11 of the motor body 15, said rotor 4 being attached to a drive shaft 9, an impeller 6 connected to the drive shaft 9, a substantially cylindrical and hollow hydraulic body 10, inside which is housed the impeller 6, and a heating device 8, housed inside the hydraulic body 10, which heats the water entering the fluid circulation pump 1.
- a synchronous electric motor 2 that comprises a stator 3 that is fixed to the outside of the motor body 15 and a permanent-magnet rotor 4 that is housed in a rotor chamber 11 of the motor body 15, said rotor 4 being attached to a drive shaft 9, an impeller 6 connected to the drive shaft 9, a substantially cylindrical and hollow hydraulic body 10, inside which is housed the impeller 6, and a heating device 8, house
- the fluid circulation pump 1 comprises a substantially cylindrical and hollow capsule 12, which has a first part 12a that is attached tightly inside the motor body 15 and a second part 12b, coaxial and continuous to said first part 12a, which is housed inside the hydraulic body 10.
- the capsule 12 delimits, along with the heating device 8, an impeller chamber 13 inside of which the impeller 6 is housed at least partially, with said capsule 12 separating the impeller chamber 13 from the rotor chamber 11 of the motor body 15.
- the hydraulic body 10 comprises an inlet pipe 11 b through which water enters the impeller chamber 13, and an outlet pipe 11c through which the heated water exits the impeller chamber 13. Furthermore, the hydraulic body 10 is fixed to the motor body 15 through known fixing means such as bayonet clips or fasteners, a seal 25 being arranged between said hydraulic body 10 and the motor body 15.
- the heating device 8 comprises at least one heating element 22, and a conducting element 23 in thermal contact with the heating element 22.
- the conducting element 23 is substantially flat, disc shaped, and is made of a heat-conducting material, mainly metallic, the conducting element 23 being fixed to the heating element 22 through known manufacturing methods.
- the heating element 22 is arranged substantially orthogonal to the impeller 6 and includes a central hole 23b that is partially passed through by said impeller 6.
- the heating element 22 comprises a thick-film resistor that is deposited on the conducting element 23 by means of known techniques such as silkscreening.
- the heating element 22 may comprise a tubular resistor.
- the hydraulic body 10 comprises a cylindrical outer wall 10b and a cylindrical ring-shaped projection 10c that extends axially in the interior, concentric to the outer wall 10b, from a bottom 10a of said hydraulic body 10.
- the heating device 8 is tightly inserted inside of the hydraulic body 10, between the outer wall 10b and the ring-shaped projection 10c, and supported on the bottom 10a, the heating element 22 being arranged facing said bottom 10a.
- the fluid circulation pump 1 comprises an inner insulating ring 17 that fits between the hole 23b of the conducting element 23 and the ring-shaped projection 10c of the hydraulic body 10, and an outer insulating ring 18 that fits between the outer wall 10b of the hydraulic body 10 and the outer perimeter of the conducting element 23, thereby preventing the water entering the fluid circulation pump 1 from coming into contact with the heating element 22.
- the heating element 22 has a maximum surface that allows it to be inserted in the inside of the hydraulic body 10 so that the water that enters through the inlet pipe 11 b and is forced towards the impeller chamber 13 by the impeller 6 is heated rapidly.
- the water housed in the impeller chamber 13 is thus able to rapidly absorb the heat transferred by the conducting element 23 and is hot when it exits through the outlet pipe 11c towards a corresponding washing chamber not shown in the figures, thereby preventing said water from boiling and the heating element 22 from overheating.
- the heat exchange that takes place in the impeller chamber 13 may be altered by modifying the hydraulic characteristics of the fluid circulation pump 1 and/or by modifying the heat transmission surface of the heating device 8.
- the hydraulic characteristics of the fluid circulation pump 1 are determined by the dimensions and/or the shape of the impeller chamber 13, with the result that by modifying the shape and/or the dimensions of the capsule 12 fluid circulation pumps 1 of different hydraulic characteristics and adapted to the specific needs of each application may be obtained. As a result, fluid circulation pumps of different hydraulic characteristics may be obtained merely by changing the capsule 12.
- the capsule 12 therefore comprises a ring-shaped rib 40, concentric to the capsule 12, which extends axially, from a bottom surface 12c of said capsule 12, to the inside of the impeller chamber 13.
- the ring-shaped rib 40 changes the shape of the impeller chamber 13 and, therefore, the hydraulic characteristics of the fluid circulation pump 1.
- the capsule may include other elements that modify its shape.
- Figure 3 shows a third embodiment of the invention in which the effectiveness of the heat exchange between the pumped water and the heating device 8 is improved by modifying the hydraulic characteristics of the fluid circulation pump 1 and the heat transmission surface of the heating device 8.
- the capsule 12 comprises an auxiliary conducting element 31 that is fixed inside the free end of the second part 12b of said capsule 12, with the ring-shaped auxiliary conducting element 31, which comprises a substantially C-shaped cross-section and is made of a heat-conducting material, being mainly metallic.
- Said auxiliary conducting element 31 modifies the hydraulic characteristics of the fluid circulation pump 1 insofar as the shape of the impeller chamber 13 is changed, and also comes into contact with the conducting element 23 of the heating device 8, thereby increasing the heat exchange surface.
- the hydraulic body 10 and the capsule 12 are made of a plastic material, which allows a light and economical fluid circulation pump 1 to be obtained.
- the capsule 12 is also an interchangeable part, with the result that in order to obtain different fluid circulation pumps with the necessary hydraulic characteristics all that is required is to exchange said capsule 12.
- the motor 2 may also be of any type known in the prior art and used in circulation pumps.
- said circulation pump 1 may include safety switches that prevent the water exiting the impeller chamber 13 from doing so at an excessively high temperature.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- This invention relates to a fluid circulation pump adapted to a household appliance, such as a washing machine or a dishwasher, and which comprises a built-in heating device.
- There are known fluid circulation pumps that include heating devices built into said circulation pumps. Known circulation pumps comprise a motor that is assembled on a motor body, a hydraulic body that is fixed to the motor body and which comprises a water inlet pipe and a water outlet pipe, an impeller operated by the motor, which is housed inside the hydraulic body, and a heating device that heats the water entering the fluid circulation pump.
- In document
US 6,736,598 B2 , the hydraulic body, which is substantially cylindrical, has a first part through which water enters in its interior and a second part that is fixed to the motor body. In addition, the heating device is ring-shaped and forms part of the cylindrical wall of the hydraulic body, said heating device being fixed to one end of the first part and to one end of the second part of the hydraulic body. - Document
GB 2427437 A - Finally, document
ES 2217864 T3 - The object of the invention is to provide a fluid circulation pump adapted to a household appliance, such as a washing machine or a dishwasher, as defined in the claims.
- The circulation pump comprises a motor that is attached to a motor body, a hydraulic body that is fixed to the motor body and which comprises a water inlet pipe and a water outlet pipe, an impeller operated by the motor and which is housed, at least partially, inside the hydraulic body, and a heating device for the water entering the fluid circulation pump comprising at least one heating element and a conducting element in thermal contact with the heating element.
- The heating device is arranged inserted inside the hydraulic body, thereby simplifying the assembly, as said heating device is separated from the motor body.
- In addition, the circulation pump comprises a capsule that is connected to the motor body, and which delimits, along with the heating device, an impeller chamber, the impeller being housed at least partially in the impeller chamber.
- As a result, a compact circulation pump is obtained, the manufacture and assembly of which is simpler than known circulation pumps.
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Figure 1 is a longitudinal section of a first embodiment of a fluid circulation pump according to the invention. -
Figure 2 is a longitudinal section of a second embodiment of a fluid circulation pump according to the invention. -
Figure 3 is a longitudinal section of a third embodiment of a fluid circulation pump according to the invention. - The
fluid circulation pump 1 according to the invention shown inFigures 1 to 3 , adapted to a household appliance such as a washing machine or a dishwasher, comprises amotor body 15 in which is assembled a synchronouselectric motor 2 that comprises astator 3 that is fixed to the outside of themotor body 15 and a permanent-magnet rotor 4 that is housed in arotor chamber 11 of themotor body 15, saidrotor 4 being attached to adrive shaft 9, animpeller 6 connected to thedrive shaft 9, a substantially cylindrical and hollowhydraulic body 10, inside which is housed theimpeller 6, and aheating device 8, housed inside thehydraulic body 10, which heats the water entering thefluid circulation pump 1. - The
fluid circulation pump 1 comprises a substantially cylindrical andhollow capsule 12, which has afirst part 12a that is attached tightly inside themotor body 15 and asecond part 12b, coaxial and continuous to saidfirst part 12a, which is housed inside thehydraulic body 10. Thecapsule 12 delimits, along with theheating device 8, animpeller chamber 13 inside of which theimpeller 6 is housed at least partially, with saidcapsule 12 separating theimpeller chamber 13 from therotor chamber 11 of themotor body 15. - The
hydraulic body 10 comprises aninlet pipe 11 b through which water enters theimpeller chamber 13, and anoutlet pipe 11c through which the heated water exits theimpeller chamber 13. Furthermore, thehydraulic body 10 is fixed to themotor body 15 through known fixing means such as bayonet clips or fasteners, aseal 25 being arranged between saidhydraulic body 10 and themotor body 15. - In addition, the
heating device 8 comprises at least oneheating element 22, and a conductingelement 23 in thermal contact with theheating element 22. The conductingelement 23 is substantially flat, disc shaped, and is made of a heat-conducting material, mainly metallic, the conductingelement 23 being fixed to theheating element 22 through known manufacturing methods. Theheating element 22 is arranged substantially orthogonal to theimpeller 6 and includes acentral hole 23b that is partially passed through by saidimpeller 6. In the embodiments shown inFigures 1 to 3 , theheating element 22 comprises a thick-film resistor that is deposited on the conductingelement 23 by means of known techniques such as silkscreening. In other embodiments not shown in the figures, theheating element 22 may comprise a tubular resistor. - The
hydraulic body 10 comprises a cylindricalouter wall 10b and a cylindrical ring-shaped projection 10c that extends axially in the interior, concentric to theouter wall 10b, from abottom 10a of saidhydraulic body 10. In addition, theheating device 8 is tightly inserted inside of thehydraulic body 10, between theouter wall 10b and the ring-shaped projection 10c, and supported on thebottom 10a, theheating element 22 being arranged facing saidbottom 10a. - In order to obtain the fixing tightness between the
heating device 8 and thehydraulic body 10, thefluid circulation pump 1 comprises aninner insulating ring 17 that fits between thehole 23b of the conductingelement 23 and the ring-shaped projection 10c of thehydraulic body 10, and anouter insulating ring 18 that fits between theouter wall 10b of thehydraulic body 10 and the outer perimeter of the conductingelement 23, thereby preventing the water entering thefluid circulation pump 1 from coming into contact with theheating element 22. - Furthermore, the
heating element 22 has a maximum surface that allows it to be inserted in the inside of thehydraulic body 10 so that the water that enters through theinlet pipe 11 b and is forced towards theimpeller chamber 13 by theimpeller 6 is heated rapidly. The water housed in theimpeller chamber 13 is thus able to rapidly absorb the heat transferred by the conductingelement 23 and is hot when it exits through theoutlet pipe 11c towards a corresponding washing chamber not shown in the figures, thereby preventing said water from boiling and theheating element 22 from overheating. - The heat exchange that takes place in the
impeller chamber 13 may be altered by modifying the hydraulic characteristics of thefluid circulation pump 1 and/or by modifying the heat transmission surface of theheating device 8. - The hydraulic characteristics of the
fluid circulation pump 1 are determined by the dimensions and/or the shape of theimpeller chamber 13, with the result that by modifying the shape and/or the dimensions of thecapsule 12fluid circulation pumps 1 of different hydraulic characteristics and adapted to the specific needs of each application may be obtained. As a result, fluid circulation pumps of different hydraulic characteristics may be obtained merely by changing thecapsule 12. - In the second embodiment of the invention, shown in
Figure 2 , thecapsule 12 therefore comprises a ring-shaped rib 40, concentric to thecapsule 12, which extends axially, from abottom surface 12c ofsaid capsule 12, to the inside of theimpeller chamber 13. The ring-shaped rib 40 changes the shape of theimpeller chamber 13 and, therefore, the hydraulic characteristics of thefluid circulation pump 1. In other embodiments, not shown in the figure, the capsule may include other elements that modify its shape. -
Figure 3 shows a third embodiment of the invention in which the effectiveness of the heat exchange between the pumped water and theheating device 8 is improved by modifying the hydraulic characteristics of thefluid circulation pump 1 and the heat transmission surface of theheating device 8. For this purpose thecapsule 12 comprises an auxiliary conductingelement 31 that is fixed inside the free end of thesecond part 12b of saidcapsule 12, with the ring-shaped auxiliary conductingelement 31, which comprises a substantially C-shaped cross-section and is made of a heat-conducting material, being mainly metallic. Said auxiliary conductingelement 31 modifies the hydraulic characteristics of thefluid circulation pump 1 insofar as the shape of theimpeller chamber 13 is changed, and also comes into contact with the conductingelement 23 of theheating device 8, thereby increasing the heat exchange surface. - The
hydraulic body 10 and thecapsule 12 are made of a plastic material, which allows a light and economicalfluid circulation pump 1 to be obtained. Thecapsule 12 is also an interchangeable part, with the result that in order to obtain different fluid circulation pumps with the necessary hydraulic characteristics all that is required is to exchange saidcapsule 12. - The
motor 2 may also be of any type known in the prior art and used in circulation pumps. In addition, saidcirculation pump 1 may include safety switches that prevent the water exiting theimpeller chamber 13 from doing so at an excessively high temperature.
Claims (15)
- Fluid circulation pump adapted to a household appliance, mainly to a washing machine or dishwasher, which comprises a motor body (15), a motor (2) that is attached to the motor body (15), a hydraulic body (10) that is fixed to the motor body (15) and which comprises a water inlet pipe (11 b) and a water outlet pipe (11c), an impeller (6) operated by the motor (2) and which is housed, at least partially, in the inside of the hydraulic body (10), and a heating device (8) for the water entering the fluid circulation pump (1), comprising at least one heating element (22) and a conducting element (23) in thermal contact with the heating element (22), characterized in that the heating device (8) is arranged inserted inside the hydraulic body (10), the fluid circulation pump (1) comprising a capsule (12) that is attached to the motor body (15) and which delimits, along with the heating device (8), an impeller chamber (13), the impeller (6) being housed at least partially in the impeller chamber (13).
- Circulation pump according to the preceding claim, characterized in that the capsule (12) is interchangeable.
- Circulation pump according to any of the preceding claims, characterized in that the heating device (8) has a disc shape, and is arranged substantially orthogonal to the impeller (6).
- Circulation pump according to any of the preceding claims, characterized in that the heating device (8) is arranged supported on a bottom (10a) of the hydraulic body (10), inserted between an outer wall (10b) and a ring-shaped projection (10c) inside said hydraulic body (10).
- Circulation pump according to the preceding claim, characterized in that it comprises tight fixing means of the heating device (8) to the hydraulic body (10).
- Fluid circulation pump according to the preceding claim, characterized in that the tight fixing means comprise an outer insulating ring (18) that fixes tightly the heating device (8) to the outer wall (10b) and an inner insulating ring (17) that fixes tightly the heating device (8) to the ring-shaped projection (10c).
- Circulation pump according to any of claims 4 to 6, characterized in that the heating element (22) is arranged facing the bottom (10a) of the hydraulic body (10).
- Circulation pump according to any of the preceding claims, characterized in that the capsule (12) comprises at least one rib (40) that extends towards the inside of the impeller chamber (13).
- Circulation pump according to the preceding claim, characterized in that the rib (40) is a ring-shaped rib, substantially concentric to the capsule (12).
- Circulation pump according to any of the preceding claims, characterized in that the capsule (12) comprises at least one auxiliary conducting element (31) fixed inside said capsule (12).
- Circulation pump according to the preceding claim, characterized in that the auxiliary conducting element (31) is arranged in contact with the conducting element (23) of the heating device (8).
- Circulation pump according to any of claims 10 or 11, characterized in that the auxiliary conducting element (31) is a metallic ring.
- Circulation pump according to any of the preceding claims, characterized in that the heating element (22) comprises at least one thick-film resistor that is deposited on the conducting element (23).
- Circulation pump according to any of claims 1 to 12, characterized in that the heating element (22) comprises at least one tubular resistor.
- Circulation pump according to any of the preceding claims, characterized in that the hydraulic body (10) and the capsule (12) are made of a plastic material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200900203A ES2351271B1 (en) | 2009-01-26 | 2009-01-26 | FLUID CIRCULATION PUMP ADAPTED TO AN APPLIANCES. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2221485A2 true EP2221485A2 (en) | 2010-08-25 |
EP2221485A3 EP2221485A3 (en) | 2016-12-21 |
EP2221485B1 EP2221485B1 (en) | 2021-03-10 |
Family
ID=42331041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10382013.0A Active EP2221485B1 (en) | 2009-01-26 | 2010-01-25 | Fluid circulation pump adapted to a household appliance |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2221485B1 (en) |
ES (2) | ES2351271B1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012062839A1 (en) * | 2010-11-10 | 2012-05-18 | E.G.O. Elektro-Gerätebau GmbH | Pump |
DE102012202491B3 (en) * | 2012-02-17 | 2013-08-08 | E.G.O. Elektro-Gerätebau GmbH | Guide wheel for an impeller pump and impeller pump |
EP2549119A3 (en) * | 2011-07-20 | 2013-12-25 | E.G.O. ELEKTRO-GERÄTEBAU GmbH | Pump |
CN104712584A (en) * | 2014-03-28 | 2015-06-17 | 美的集团股份有限公司 | Washing pump and dish washing machine |
US9145901B2 (en) | 2011-04-15 | 2015-09-29 | Johnson Electric S.A. | Heating pump |
WO2015145386A1 (en) * | 2014-03-26 | 2015-10-01 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Centrifugal pump for household appliances |
CN106659353A (en) * | 2014-08-22 | 2017-05-10 | Lg 电子株式会社 | Pump and dishwasher including the same |
EP3212835A1 (en) * | 2014-10-29 | 2017-09-06 | BSH Hausgeräte GmbH | Laundry-care appliance having a detergent-solution pump |
CN108518358A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
US20230044897A1 (en) * | 2021-08-03 | 2023-02-09 | Bleckmann Gmbh & Co. Kg | Pressure Wall for a Fluid Pump and a Pump Including the Pressure Wall |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109209912B (en) * | 2018-09-28 | 2021-01-01 | 佛山市威灵洗涤电机制造有限公司 | Electric pump and dish washing machine |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6736598B2 (en) | 2000-10-25 | 2004-05-18 | Eichenauer Heizelemente Gmbh & Co. Kg | Pump with a heatable housing |
ES2217864T3 (en) | 1998-12-16 | 2004-11-01 | Bsh Bosch Und Siemens Hausgerate Gmbh | DEVICE FOR HEATING THE WASHING LIQUID OF A DISHWASHER. |
GB2427437A (en) | 2005-06-23 | 2006-12-27 | Otter Controls Ltd | Pump incorporating an electric heating element |
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DE19736794C2 (en) * | 1997-08-23 | 2000-04-06 | Whirlpool Co | Dishwasher with lower and upper spray arm and a circulation pump |
DE29825044U1 (en) * | 1998-12-16 | 2004-07-15 | BSH Bosch und Siemens Hausgeräte GmbH | Heater for heating up the washing liquid in a dishwasher has heating arrangement mounted on pump housing in thermally conducting contact with interior of pump housing |
DE10133130A1 (en) * | 2001-07-07 | 2003-01-16 | Miele & Cie | Circulation pump with/without heating device, especially for supplying washing liquid to dishwasher spray arms, has water switch integrated into circulation pump |
EP1595489B1 (en) * | 2004-05-12 | 2007-07-11 | Askoll Holding S.r.l. | Fluid circulation pump with synchronous motor, equipped with heating means of the fluid, in particular for washing-machines |
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-
2009
- 2009-01-26 ES ES200900203A patent/ES2351271B1/en not_active Expired - Fee Related
-
2010
- 2010-01-25 EP EP10382013.0A patent/EP2221485B1/en active Active
- 2010-01-25 ES ES10382013T patent/ES2855153T3/en active Active
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ES2217864T3 (en) | 1998-12-16 | 2004-11-01 | Bsh Bosch Und Siemens Hausgerate Gmbh | DEVICE FOR HEATING THE WASHING LIQUID OF A DISHWASHER. |
US6736598B2 (en) | 2000-10-25 | 2004-05-18 | Eichenauer Heizelemente Gmbh & Co. Kg | Pump with a heatable housing |
GB2427437A (en) | 2005-06-23 | 2006-12-27 | Otter Controls Ltd | Pump incorporating an electric heating element |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2012062839A1 (en) * | 2010-11-10 | 2012-05-18 | E.G.O. Elektro-Gerätebau GmbH | Pump |
CN103477085A (en) * | 2010-11-10 | 2013-12-25 | E.G.O.电气设备制造股份有限公司 | Pump |
CN103477085B (en) * | 2010-11-10 | 2016-09-07 | E.G.O.电气设备制造股份有限公司 | Pump |
US9145901B2 (en) | 2011-04-15 | 2015-09-29 | Johnson Electric S.A. | Heating pump |
EP2549119A3 (en) * | 2011-07-20 | 2013-12-25 | E.G.O. ELEKTRO-GERÄTEBAU GmbH | Pump |
DE102012202491B3 (en) * | 2012-02-17 | 2013-08-08 | E.G.O. Elektro-Gerätebau GmbH | Guide wheel for an impeller pump and impeller pump |
US9388822B2 (en) | 2012-02-17 | 2016-07-12 | E.G.O. Elektro-Gerätebau GmbH | Guide ring for an impeller pump and impeller pump |
WO2015145386A1 (en) * | 2014-03-26 | 2015-10-01 | I.R.C.A. S.P.A. Industria Resistenze Corazzate E Affini | Centrifugal pump for household appliances |
CN104712584A (en) * | 2014-03-28 | 2015-06-17 | 美的集团股份有限公司 | Washing pump and dish washing machine |
CN108518358A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
CN108518359A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
CN108518360A (en) * | 2014-04-24 | 2018-09-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Heat pump and dish-washing machine for dish-washing machine |
CN106659353B (en) * | 2014-08-22 | 2019-03-15 | Lg 电子株式会社 | Pump and the dish cleaning machine including the pump |
CN106659353A (en) * | 2014-08-22 | 2017-05-10 | Lg 电子株式会社 | Pump and dishwasher including the same |
EP3182873A4 (en) * | 2014-08-22 | 2018-05-02 | LG Electronics Inc. | Pump and dishwasher including the same |
US10092161B2 (en) | 2014-08-22 | 2018-10-09 | Lg Electronics Inc. | Pump and dishwasher including the same |
US10368715B2 (en) | 2014-08-22 | 2019-08-06 | Lg Electronics Inc. | Pump and dishwasher including the same |
US10653290B2 (en) | 2014-08-22 | 2020-05-19 | Lg Electronics Inc. | Pump and dishwasher including the same |
US11185210B2 (en) | 2014-08-22 | 2021-11-30 | Lg Electronics Inc. | Pump and dishwasher including the same |
US11684234B2 (en) | 2014-08-22 | 2023-06-27 | Lg Electronics Inc. | Pump and dishwasher including the same |
US12016507B2 (en) | 2014-08-22 | 2024-06-25 | Lg Electronics Inc. | Pump and dishwasher including the same |
EP3212835A1 (en) * | 2014-10-29 | 2017-09-06 | BSH Hausgeräte GmbH | Laundry-care appliance having a detergent-solution pump |
EP3212835B1 (en) * | 2014-10-29 | 2022-08-24 | BSH Hausgeräte GmbH | Laundry care appliance with a drain pump |
US20230044897A1 (en) * | 2021-08-03 | 2023-02-09 | Bleckmann Gmbh & Co. Kg | Pressure Wall for a Fluid Pump and a Pump Including the Pressure Wall |
US11828295B2 (en) * | 2021-08-03 | 2023-11-28 | Bleckmann Gmbh & Co. Kg | Pressure wall for a fluid pump and a pump including the pressure wall |
Also Published As
Publication number | Publication date |
---|---|
EP2221485B1 (en) | 2021-03-10 |
ES2855153T3 (en) | 2021-09-23 |
EP2221485A3 (en) | 2016-12-21 |
ES2351271A1 (en) | 2011-02-02 |
ES2351271B1 (en) | 2011-11-15 |
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