CN102995360A - Drainage pump of washing machine and washing machine - Google Patents
Drainage pump of washing machine and washing machine Download PDFInfo
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- CN102995360A CN102995360A CN2011102780343A CN201110278034A CN102995360A CN 102995360 A CN102995360 A CN 102995360A CN 2011102780343 A CN2011102780343 A CN 2011102780343A CN 201110278034 A CN201110278034 A CN 201110278034A CN 102995360 A CN102995360 A CN 102995360A
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- washing machine
- outlet pipe
- return duct
- drainage
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Abstract
The invention discloses a drainage pump of a washing machine, and the drainage pump comprises a pump shell, a water shifting blade, a water inlet pipe, a water outlet pipe, a pump cavity, a filter cavity, and a reflux pipe which connects the water outlet pipe and the filter cavity; the reflux pipe is integrated with the water outlet pipe and the pump shell; and the reflux pipe is arranged obliquely in a manner relative to the water outlet pipe and the pump shell. The invention also relates to a full-automatic washing machine using the drainage pump. Due to the adoption of the technical scheme, the reflux pipe is additionally arranged between the water outlet pipe and the pump shell of the drainage pump of the washing machine and is integrated, the cost is low, the structure is simple and reliable, so that the fault rate is low, and the noise pollution of water drainage is effectively reduced.
Description
Technical field
The present invention relates to a kind of washing machine, particularly relate to the washing machine that uses draining pump and the low noise water discharge pump of this washing machine.
Background technology
Domestic electric washer is divided into pulsator washing machine, roller washing machine, stirring washing machine, and roller washing machine is applied to Europe the earliest, and along with the variation of people's level of consumption and idea, roller washing machine is also accepted by the Asia people more and more widely.Simultaneously along with the continuous improvement of social living environment, the improving constantly of washing machine user family life quality, quietly living environment more and more is subject to everybody attention.Family's electric noise has also become one of major issue of each household electrical appliances manufacturer solution, and wherein the quiet index of washing machine is improving constantly.
Roller washing machine all adopts drainage pattern, and the water in the cylinder is by outside draining pump, the drainpipe discharge machine.Draining pump is subject to that water impact produces in the water pipe circulation noise of " drone---drone " can't not thoroughly solve when draining.After water in the roller washing machine is emptying, because draining pump has the lift about 1.2 meters, the water of this section water pipe internal memory can't be discharged, on the contrary under action of gravitation, constantly impact drain pump impeller downwards, thrown away by impeller again, so just, cause the noise of " drone-drone ", on existing low side washing machine, all adopt the water level switch device, draining pump can only be worked in whole drying process always, even if adopted level sensor at high-end washing machine, though can when low water level, determine lowest water level, stop draining pump work.But the signal of sensor usually can be interfered and drift about, very easily erroneous judgement, and its result or noise is still arranged, otherwise draining is unclean, can not satisfy user's low noise demand.Formerly patent CN201507484 U denomination of invention is in the disclosed technical scheme of low noise pump case of drainage pump of washing machine, set up an explosionproof hole at pump case near the pump chamber of water outlet and the pump Nell wall end face between the filter chamber, but this venting is lower than water discharge outlet, namely in pump chamber, still can form the gas-vapor mix body, can not solve fully and impact the noise that impeller produces when water refluxes in the drainpipe.
Summary of the invention
The present invention is based on above-mentioned defective of the prior art, a kind of low noise water discharge pump and washing machine are provided, in pump chamber, be full of all the time water, avoid the gas-vapor mix body to impact water extraction leaf, effectively reduce the washing machine noise.
In order to realize the object of the invention, the present invention adopts following technical scheme:
A kind of drainage pump of washing machine comprises pump case, water extraction leaf, water inlet pipe, outlet pipe, pump chamber, filter chamber, also comprises the return duct that connects outlet pipe and filter chamber, and the link of return duct and outlet pipe should exceed the distance of pump chamber draining end face.
Described return duct and outlet pipe, pump case global formation.
Described return duct is inclined to set with respect to outlet pipe and pump case, and further, the central axis angular range of the central axis of described return duct and outlet pipe is 20 °-80 °.
As another embodiment, described return duct can be arranged to L shaped connection outlet pipe and filter chamber according to the structure of pump case, and further, L shaped return duct corner is arc transition.
Described diameter of outflow tube is 3-6 times of return duct diameter.
The invention still further relates to a kind of automatic washing machine, comprise water inlet system, contain the drainage system of draining pump, described draining pump comprises pump case, water extraction leaf, water inlet pipe, outlet pipe, pump chamber, filter chamber, also comprise the return duct that connects outlet pipe and filter chamber, the distance that the link of return duct and outlet pipe exceeds pump chamber draining end face is 1-3 times of return duct diameter.Described return duct and outlet pipe, pump case global formation.
By adopting above-mentioned technical scheme, drainage pump of washing machine is set up return duct and one-body molded between outlet pipe and pump case, has water to exist in the pump case always, avoids air to enter, and draining pump can not produce " banging-bang " noise during washing machine dried.Simple and reliable for structure, realize low-cost noise reduction, failure rate is low solves the problem that noise is bothered the consumer in the laundry processes, more hommization.
Description of drawings
Fig. 1 is embodiment of the invention drainage system schematic diagram.
Fig. 2 is another example of the present invention.
Part shown in the figure is: 1. pump case, 2. pump chamber, 3. filter chamber, 4. water extraction leaf, 5. water inlet pipe, 6. outlet pipe, 7. return duct, 8. drain motor, 9. pump chamber water discharge outlet end face.
The specific embodiment
Below in conjunction with accompanying drawing, to drainage pump of washing machine provided by the invention and use the washing machine of this draining pump to be elaborated.
As shown in the figure, the washing machine drainage system comprises and is divided into pump chamber 2 and filter chamber 3 in pump case 1, the pump case 1, and water inlet pipe 5 is communicated with filter chambers 3, and water extraction leaf 4 is arranged in the pump chamber 2, drain motor 8 rotates and drives water extraction leaf 4 work, and the centrifugal force of formation is discharged to water the outlet pipe 6 from pump chamber water discharge outlet end 9.Be provided with return duct 7 at outlet pipe 6 and filter chamber 3, return duct 7 is communicated with outlet pipe 6 and filter chamber 3, return duct 7 and outlet pipe 6, pump case 1 global formation.
When washing machine drainage, the washing machine drum washed water enters from water inlet pipe 5, is filled to filter chamber 3, pump chamber 2, outlet pipe 6, return duct 7, under the effect of water extraction leaf 4 water is being discharged outside the washing machine from outlet pipe 5.When the bucket washed water when emptying, water inlet pipe 5 does not have water to enter filter chamber 3, at this moment, water in the outer drainpipe (not shown) of outlet pipe 5 and washing machine adds in the filter chamber 3 via return duct 7 under Action of Gravity Field, even so the water in the laundry machine barrel is emptying, still be full of water in pump case 1 inside, form one by the partial circulating of outlet pipe 6-return duct 7-filter chamber 3-pump chamber 2-outlet pipe 6, whole process does not have air to enter, and has avoided the noise of " banging-bang ".
In this most preferred embodiment, return duct 7 exceeds pump chamber draining end face with the link of outlet pipe 6, and diameter of outflow tube is 3-6 times of return duct diameter.Return duct 7 is inclined to set with respect to outlet pipe 6 and pump case 1, the central axis angular range of the central axis of return duct and outlet pipe is 20 °-80 °, guarantee that like this having water to be full of in the pump chamber 2 is unlikely to enter air, and unimpeded quick must being back in the filter chamber 3 of return duct 7 backwater.
As another kind of embodiment, referring to shown in Figure 2, also can be arranged to L shaped connection outlet pipe and filter chamber according to the structure return duct of pump case, return duct connects the outlet pipe position and is higher than pump chamber draining end face.
As another embodiment, if when outlet pipe is substantially parallel with filter chamber, return duct can be designed to the straight pipeline shape, and return duct is as long as an end connects outlet pipe, and the other end connects filter chamber, can allow the water of the outer drainpipe of washing machine reflux and just can realize the low noise of pump.
The invention still further relates to a kind of automatic washing machine that uses this draining pump, comprise water inlet system, contain the drainage system of draining pump, described draining pump comprises pump case, water extraction leaf, water inlet pipe, outlet pipe, pump chamber, filter chamber, also comprise the return duct that connects outlet pipe and filter chamber, the link of return duct and outlet pipe exceeds pump chamber draining end face.Described return duct and outlet pipe, pump case global formation.
In sum, by adopting above-mentioned technical scheme, drainage pump of washing machine is set up return duct and one-body molded, the Integral designs such as return duct, pump case between outlet pipe and pump case, no longer add parts, simple and reliable, failure rate is low can not increase any cost, guarantee to have in the pump case in the drainage procedure water to exist always, can not enter air, during washing machine dries, effectively reduce noise pollution.
Certainly, the present invention is not limited to above-mentioned giving an example, the technical scheme that it will be apparent to those skilled in the art that, in the situation that do not break away from the spirit or scope of the present invention, the present invention is made various modifications and changes in claim of the present invention and be equal in the scope of replacement, this technical scheme is not only applicable to roller washing machine, also is applicable to simultaneously rotary drum washing machine, the stirring washing machine of drainage belt draining pump, and then such modification and change are contained in the present invention.
Claims (8)
1. a drainage pump of washing machine comprises pump case, water extraction leaf, water inlet pipe, outlet pipe, pump chamber, filter chamber, it is characterized in that, also comprises the return duct that connects outlet pipe and filter chamber, and the link of return duct and outlet pipe should exceed pump chamber draining end face.
2. drainage pump of washing machine according to claim 1 is characterized in that, described return duct and outlet pipe, pump case global formation.
3. drainage pump of washing machine according to claim 2 is characterized in that, described return duct is inclined to set with respect to outlet pipe and pump case.
4. drainage pump of washing machine according to claim 3 is characterized in that, the central axis angular range of the central axis of described return duct and outlet pipe is 20 °-80 °.
5. drainage pump of washing machine according to claim 2 is characterized in that, described return duct can be arranged to L shaped according to the structure of pump case, and L shaped return duct two ends connect outlet pipe and filter chamber.
6. drainage pump of washing machine according to claim 5 is characterized in that, described L shaped return duct corner is arc transition.
7. each described drainage pump of washing machine is characterized in that according to claim 1-6, and described diameter of outflow tube is 3-6 times of return duct diameter.
8. automatic washing machine comprises water inlet system, contains the drainage system of draining pump, it is characterized in that, described draining pump adopts according to claim 1-7 each described draining pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102780343A CN102995360A (en) | 2011-09-19 | 2011-09-19 | Drainage pump of washing machine and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102780343A CN102995360A (en) | 2011-09-19 | 2011-09-19 | Drainage pump of washing machine and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102995360A true CN102995360A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102780343A Pending CN102995360A (en) | 2011-09-19 | 2011-09-19 | Drainage pump of washing machine and washing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102995360A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017131392A1 (en) * | 2016-01-27 | 2017-08-03 | 엘지전자 주식회사 | Drain pump and washing apparatus including same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0561689A1 (en) * | 1992-03-17 | 1993-09-22 | Societe Electromecanique Du Nivernais - Selni | Centrifugal pumps |
| US5868011A (en) * | 1997-04-04 | 1999-02-09 | General Electric Company | Water traps for washing machines |
| CN1304469A (en) * | 1999-02-08 | 2001-07-18 | 阿塞里克有限公司 | Washing machine with suppressed discharge-pump noise |
| CN1508345A (en) * | 2002-12-17 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Corrugated hose integrated air chamber structure for drum washing machine |
| CN200967895Y (en) * | 2006-08-01 | 2007-10-31 | 博西华电器（江苏）有限公司 | Water discharging device for washing facility |
| CN200999763Y (en) * | 2006-12-21 | 2008-01-02 | 于国强 | Improved centrifugation water discharge pump case |
| CN201507484U (en) * | 2009-09-08 | 2010-06-16 | 常州雷利电机科技有限公司 | Low noise pump shell of washing machine drainage pump |
| CN201598476U (en) * | 2009-12-07 | 2010-10-06 | 无锡小天鹅股份有限公司 | Upper drainage pump arranged in washing machine and used for preventing foreign matters from being sucked |
| CN102062105A (en) * | 2009-11-13 | 2011-05-18 | 浙江三花股份有限公司 | Drainage pump and assembling method thereof, impeller device and heat exchange device |
| CN202284255U (en) * | 2011-09-19 | 2012-06-27 | 海尔集团公司 | Drainage pump of washing machine and washing machine |
-
2011
- 2011-09-19 CN CN2011102780343A patent/CN102995360A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0561689A1 (en) * | 1992-03-17 | 1993-09-22 | Societe Electromecanique Du Nivernais - Selni | Centrifugal pumps |
| US5868011A (en) * | 1997-04-04 | 1999-02-09 | General Electric Company | Water traps for washing machines |
| CN1304469A (en) * | 1999-02-08 | 2001-07-18 | 阿塞里克有限公司 | Washing machine with suppressed discharge-pump noise |
| CN1508345A (en) * | 2002-12-17 | 2004-06-30 | 乐金电子(天津)电器有限公司 | Corrugated hose integrated air chamber structure for drum washing machine |
| CN200967895Y (en) * | 2006-08-01 | 2007-10-31 | 博西华电器（江苏）有限公司 | Water discharging device for washing facility |
| CN200999763Y (en) * | 2006-12-21 | 2008-01-02 | 于国强 | Improved centrifugation water discharge pump case |
| CN201507484U (en) * | 2009-09-08 | 2010-06-16 | 常州雷利电机科技有限公司 | Low noise pump shell of washing machine drainage pump |
| CN102062105A (en) * | 2009-11-13 | 2011-05-18 | 浙江三花股份有限公司 | Drainage pump and assembling method thereof, impeller device and heat exchange device |
| CN201598476U (en) * | 2009-12-07 | 2010-10-06 | 无锡小天鹅股份有限公司 | Upper drainage pump arranged in washing machine and used for preventing foreign matters from being sucked |
| CN202284255U (en) * | 2011-09-19 | 2012-06-27 | 海尔集团公司 | Drainage pump of washing machine and washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017131392A1 (en) * | 2016-01-27 | 2017-08-03 | 엘지전자 주식회사 | Drain pump and washing apparatus including same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160613 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130327 |
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| RJ01 | Rejection of invention patent application after publication |