CN101925747A - Household appliance for washing articles - Google Patents
Household appliance for washing articles Download PDFInfo
- Publication number
- CN101925747A CN101925747A CN2008801257909A CN200880125790A CN101925747A CN 101925747 A CN101925747 A CN 101925747A CN 2008801257909 A CN2008801257909 A CN 2008801257909A CN 200880125790 A CN200880125790 A CN 200880125790A CN 101925747 A CN101925747 A CN 101925747A
- Authority
- CN
- China
- Prior art keywords
- impeller
- center hub
- blade
- electric appliance
- movably
- 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
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Classifications
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/247—Vanes elastic or self-adjusting
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/44—Current or voltage
- D06F2103/48—Current or voltage of the motor driving the pump
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
A household appliance (1) for washing articles having at least one electric pump (8) for circulating or draining water; the electric pump (8) having an outer volute (9) having an inner pumping chamber (9a), an impeller (10) housed in axially rotating manner inside the pumping chamber (9a), and an electric motor (11) connected mechanically to the impeller (10) to rotate it about a rotation axis (A); the impeller (10) in turn having a central hub (17) coaxial with the rotation axis (A), and at least one movable projecting blade (18) fitted to the central hub (17) and movable between a fully retracted position in which the blade (18) is almost totally withdrawn inside the central hub (17), and a fully extracted position in which the blade (18) projects from the central hub (17) so that the outer lateral edge (18a) of the blade is further from the rotation axis (A) than when the blade (18) is in the fully retracted position.
Description
Technical field
The present invention relates to a kind of household electric appliance of washing articles.
More particularly, the present invention relates to a kind of washing machine or dishwasher with electronic draining pump, the description that below relates to this washing machine or dishwasher is undertaken by example fully.
Background technique
As known to, washing machine and dishwasher are equipped with the electric water pump that is used for draining usually.This pump has the impeller that is connected to the motor reel end, and its centre rotational axis around the pump chamber inside with intake pipe and delivery pipe rotates.In known water pump, this impeller by articulated joint or clutch mechanism be connected to motor reel, between described axle and impeller, allow to have certain amount of rotating relatively freely (for example 120 °), so that when motor start-up, it is that idle running is to reduce detent torque and current peak widely basically that motor reel begins.In fact, the high liquid inertia of the motionless water in the described pump chamber begins on described impeller, thereby also is to have produced high drag torque on motor reel.
But the two all has a plurality of shortcomings articulated joint and clutch.Clutch be expensive and noise big, and articulated joint contains a certain amount of grease, this can lose its characteristic on the joint operating life, thereby causes noise or or even the blocking of joint.
The articulated joint or the clutch of cancellation electric water pump have been proposed at present.But, in this case, need quite powerful motor to overcome the high liquid inertia of the motionless water in the pump chamber, thereby increased cost and size widely.
Summary of the invention
The purpose of this invention is to provide a kind of electronic draining pump that is used for washing machine or dishwasher, it has been designed to eliminate above-mentioned shortcoming and has not made the size of pump motor too big.
According to the present invention, provide a kind of described in claim 1, preferably but unnecessarily be household electric appliance at the washing articles described in each dependent claims.
Description of drawings
With reference to the accompanying drawings a non-limiting mode of execution of the present invention is described, wherein:
-Fig. 1 shows the side view according to the washing machine of instruction of the present invention, and the some of them parts illustrate with the cross section, and has for the sake of clarity removed some parts;
-Fig. 2 shows the decomposition side view of the motor-drive pump of Fig. 1 washing machine, and the some of them parts illustrate with the cross section, and has for the sake of clarity removed some parts;
The motor-drive pump that-Fig. 3 and 4 shows Fig. 2 respectively stop with operating condition under the sectional view of front portion.
Embodiment
Referring to Fig. 1, the whole household electric appliance that are used to wash of numeral 1 expression, this electric household appliance are useful on the wash liquid that makes in this equipment hydraulic circuitry mobile and/or that when cycles of washing finishes described wash liquid is discharged from this equipment.
Specifically, in shown example, household electric appliance 1 are domestic washing machines 1, and it comprises the housing 2 that rests on the floor; The washing tube 3 of cylindrical (preferred but inessential), it is suspended on housing 1 inside by a plurality of helical springs 4 (only showing among Fig. 1) with ralocatable mode, and described helical spring 4 is preferably but unnecessarily be combined with one or more vibration damper (not shown); Be contained in the turning barrel 6 to rotate in the described washing tube 3 around its longitudinal axis; And supply water or from the hydraulic circuitry 7 of washing tube 3 drainings to washing tube 3 according to order.
Referring to Fig. 1 and 2, hydraulic circuitry has the motor-drive pump 8 that is used to make water cycle or draining, this motor-drive pump 8 comprises: shell 9, this shell 9 has internal pump chamber 9a, the inlet 8a of this internal pump chamber 9a by defining pump respectively and two openings and the outside UNICOM of outlet 8b are promptly with the water pipe UNICOM of hydraulic circuitry 7; Impeller 10, it is contained in pump chamber 9a inside with axial rotary way, and rotating around rotating centroidal axis A, this centroidal axis A is preferably but unnecessarily consistent with the longitudinal axis of shell 9; And slewing motor 11 (for example permanent magnet synchronous motor or permanent magnetism asynchronous motor, synchronous motor or asynchronous motor), this motor 11 mechanically is connected to shell 9, so that its rotatingshaft 11a and centroidal axis A stretch into pump chamber 9a coaxially and directly also be connected to impeller 10 rigidly so that it rotates around its centroidal axis A.
Referring to Fig. 2, in shown mode of execution, shell 9 is to be made of disk-shaped substantially parts 12 and cup-shaped basically parts 13, wherein, described disc-shaped part 12 is shaped to one with the shell of motor 11, thereby stretch out from the center of disc-shaped part 12 end of rotatingshaft 11a; Described cup 13 is installed on the disc-shaped part 12 in a fluid tight manner removedly, to limit the pump chamber 9a of impeller 10 in inside.
More particularly, disc-shaped part 12 is coaxial, promptly coaxial with centroidal axis A with the longitudinal axis of described frame or shell 9, and rotatingshaft 11a is inserted in the disc-shaped part 12 in the mode of rotatable and fluid-tight.
Referring to Fig. 2,3 and 4, the impeller 10 of motor-drive pump 8 is contained in the cup 13, promptly be contained in the pump chamber 9a, can rotate around centroidal axis A, and comprise: preferably but unnecessarily be the center hub 17 of Gothic arch, center hub 17 and the coaxial extension of centroidal axis A and be installed to the end of rotatingshaft 11a rigidly; And one or more (being four in the example that illustrates) be installed to the bulged blade 18 of center hub 17, and they preferably but unnecessarily around center hub 17 equal angles ground at interval.
Different with other washing machine, each blade 18 of motor-drive pump 8 is being installed to center hub 17 in the mode of moving between retracted position and the complete extended position fully, at described complete retracted position, blade 18 almost completely is withdrawn into the inside (see figure 3) of center hub 17, at described complete extended position, blade 18 stretches out from center hub 17, and the amount of stretching out almost is perpendicular to its whole length (see figure 4) that rotation axis A measures, thereby the outer side 18a that compares blade when being on the complete retracted position with blade 18 is farther apart from rotation axis A.
In addition, referring to Fig. 2, impeller 10 also comprises and is used for controlling the movably position control of the position of bulged blade 18 on center hub 17 according to the instant angular velocity of impeller 10.
Specifically, impeller 10 comprise be used to offset centrifugal force and the angular velocity of center hub 17 drop to setting value make when following each movably bulged blade 18 enter the device of complete retracted position.
Especially, referring to Fig. 2, in shown example, each movably bulged blade 18 be by being that trapezoidal tabular fin 18 constitutes substantially, tabular fin 18 is positioned on the radial plane that overlaps with the rotation axis A of center hub 17, and slidably is inserted among the corresponding radial groove 17a that is molded on center hub 17 bodies; Being used to control movably, the position control of the position of bulged blade 18 comprises a plurality of helical springs 19, each helical spring is contained among the corresponding radial groove 17a on the center hub 17, and second end that each helical spring has first end of the bottom that is installed to radial groove 17a and is installed to the fin body, so that whole fin 18 is moved on the bottom of corresponding radial groove 17a.
In other words, each helical spring 19 be designed to offset centrifugal force and when the angular velocity of center hub 17 just flexibly will be accordingly when setting value is following movably bulged blade 18 remain on the complete retracted position.
Generally speaking from top description, can clearly infer the operation that washing machine 1, no longer need further to have explained.
About motor-drive pump 8, referring to Fig. 3, as long as impeller 10 is motionless or rotates with low-down angular velocity, helical spring 19 will offset described centrifugal force and will be movably bulged blade 18 remain on the complete retracted position of center hub 17 inside, in case produce high drag torque when rotating in the actionless water of uppermost leaf wheel 10 in pump chamber 9a.
On the contrary, referring to Fig. 4, when the angular velocity of impeller 10 reaches setting value (it is decided according to the mechanical property of helical spring 19), described centrifugal force has overcome the elastic force of helical spring 19 and has made blade 18 come out to enter the position of stretching out fully from center hub 17, so impeller 10 can make water pass through shell 9 to flow.
As mentioned above, the use of motor-drive pump 8 has a plurality of advantages.Because the design of impeller 10, motor-drive pump 8 do not need articulated joint or clutch to reduce the required detent torque of motor 11 between a 11a of impeller 10 and motor 11.
In addition, because as long as impeller 10 is motionless, movably bulged blade 18 just remains on the complete retracted position, so when motor-drive pump 8 is turned off, owing to any fine hair or chip in the water no longer are bonded on the impeller 10, so motor-drive pump 8 can not stopped up.
Obviously, can be without departing from the present invention to washing machine 1 and/or motor-drive pump 8 make a change as described herein.
For example, the impeller 10 of motor-drive pump 8 can comprise one or more movably bulged blades 18, and one or more fixing bulged blade 18 that can not move radially that is connected to center hub 17 rigidly.
Obviously, in different mode of executions, household electric appliance 1 can be dishwashers.Under this kind situation, motor-drive pump 8 is used for circulation or discharges dish water.
Claims (8)
1. household electric appliance of a washing articles (1), it has at least one motor-drive pump (8) that is used to circulate or discharges wash liquid; Described motor-drive pump (8) comprising: have internal pump chamber (9a) shell (9) but, be contained in the impeller (10) in the pump chamber (9a) and mechanically be connected to described impeller (10) in the mode of axial rotation so that the motor (11) that described impeller (10) rotates around rotation axis (A);
It is characterized in that: the center hub (17) that described impeller (10) comprises and described rotation axis (A) is coaxial and at least one bulged blade (18) movably that is installed to described center hub (17) and can between complete retracted position and complete extended position, moves, wherein, at described complete retracted position, described bulged blade (18) almost completely is reduced to the inside of described center hub (17), and at described complete extended position, described bulged blade (18) stretches out from described center hub (17), thereby to compare the described rotation axis of outer side (18a) distance (A) of described bulged blade when being in complete retracted position farther with described bulged blade (18).
2. the household electric appliance described in claim 1 is characterized in that, described impeller (10) comprises the device that is used for controlling according to the instant angular velocity of described center hub (17) position of described movably bulged blade on described center hub (17).
3. household electric appliance that are used for washing articles described in claim 2, it is characterized in that, be used to control described movably bulged blade the described device (19) of the position on the described center hub (17) the angular velocity of described impeller (10) drop to setting value make when following described at least one movably bulged blade (18) move to complete retracted position.
4. each described household electric appliance that are used for washing articles in the claim as described above, it is characterized in that, described at least one movably bulged blade (18) be to constitute by tabular substantially fin (18), described fin (18) is positioned on the radial plane that overlaps with the rotation axis (A) of described impeller (10), and is inserted into slide type in the corresponding radial groove (17a) on the body that is formed on described center hub (17).
5. as claim 3 and the 4 described household electric appliance that are used for washing articles, it is characterized in that, the described device (19) that is used to control the position of described movably bulged blade on described center hub (17) comprises at least one resilient member (19), described resilient member is contained in the described radial groove (17a) of described center hub (17), and described resilient member has first end of the bottom that is installed to described radial groove (17a) and is installed to second end of the body of described tabular fin (18), so that described tabular fin (18) is moved on the bottom of described radial groove (17a); Described resilient member (19) is designed to offset centrifugal force and when setting value is following described movably bulged blade (18) is remained on complete retracted position at the angular velocity of described impeller (10).
6. each described household electric appliance that are used for washing articles in the claim as described above is characterized in that described impeller (10) comprises around described center hub (17) equal angles a plurality of movably bulged blades (18) at interval.
7. each described household electric appliance that are used for washing articles in the claim as described above is characterized in that these household electric appliance are washing machine or dishwasher.
8. the household electric appliance that are used for washing articles as claimed in claim 7 is characterized in that, described motor-drive pump (8) is draining pump (8).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08150991A EP2085619B1 (en) | 2008-02-01 | 2008-02-01 | Household appliance for washing articles |
| EP08150991.1 | 2008-02-01 | ||
| PCT/EP2008/010896 WO2009095065A1 (en) | 2008-02-01 | 2008-12-19 | Household appliance for washing articles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101925747A true CN101925747A (en) | 2010-12-22 |
| CN101925747B CN101925747B (en) | 2012-11-28 |
Family
ID=39485111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801257909A Expired - Fee Related CN101925747B (en) | 2008-02-01 | 2008-12-19 | Household appliance for washing articles |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2085619B1 (en) |
| CN (1) | CN101925747B (en) |
| AT (1) | ATE504744T1 (en) |
| DE (1) | DE602008006007D1 (en) |
| PL (1) | PL2085619T3 (en) |
| WO (1) | WO2009095065A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2965775B1 (en) * | 2010-10-11 | 2012-10-26 | Peugeot Citroen Automobiles Sa | PUMP FOR WASHING LIQUID OF MOTOR VEHICLE |
| KR101588137B1 (en) * | 2014-10-24 | 2016-01-22 | 엘지전자 주식회사 | Drain pump assembly and dryer for clothes having the same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2558319A1 (en) * | 1975-12-23 | 1977-07-07 | Daimler Benz Ag | Vehicle water circulation pump - has flow rate reduced at high engine speed by adjusting impeller blade angles |
| DE2616238A1 (en) * | 1976-04-13 | 1977-11-03 | Daimler Benz Ag | Centrifugal water pump impeller - has inner and annular outer portion coupled to disengage above given speed to reduce delivery |
| JPS59115484A (en) * | 1982-12-21 | 1984-07-03 | Toshiba Corp | Rotary sliding structural body |
| DE3420370A1 (en) * | 1984-01-02 | 1985-07-11 | Robert Bosch Gmbh, 7000 Stuttgart | INDUCTION MOTOR |
| FR2711395B1 (en) * | 1993-10-20 | 1997-05-23 | Joel Arnaud | Universal motor or pump for all fluids and especially steam. |
| CN1546868A (en) * | 2003-12-04 | 2004-11-17 | 北京本然科技有限公司 | High potential ratio, inner antifriction, centripetal supercharging centrifugal pump and its combined method of technology and examples |
| DE102004051561A1 (en) * | 2004-10-22 | 2006-05-04 | Siemens Ag | Vane pump |
-
2008
- 2008-02-01 EP EP08150991A patent/EP2085619B1/en not_active Not-in-force
- 2008-02-01 AT AT08150991T patent/ATE504744T1/en not_active IP Right Cessation
- 2008-02-01 PL PL08150991T patent/PL2085619T3/en unknown
- 2008-02-01 DE DE602008006007T patent/DE602008006007D1/en active Active
- 2008-12-19 CN CN2008801257909A patent/CN101925747B/en not_active Expired - Fee Related
- 2008-12-19 WO PCT/EP2008/010896 patent/WO2009095065A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| ATE504744T1 (en) | 2011-04-15 |
| CN101925747B (en) | 2012-11-28 |
| PL2085619T3 (en) | 2011-08-31 |
| EP2085619A1 (en) | 2009-08-05 |
| EP2085619B1 (en) | 2011-04-06 |
| WO2009095065A1 (en) | 2009-08-06 |
| DE602008006007D1 (en) | 2011-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |