CN107100854A - A kind of high-efficient low-noise drainage pump of washing machine - Google Patents
A kind of high-efficient low-noise drainage pump of washing machine Download PDFInfo
- Publication number
- CN107100854A CN107100854A CN201710326632.0A CN201710326632A CN107100854A CN 107100854 A CN107100854 A CN 107100854A CN 201710326632 A CN201710326632 A CN 201710326632A CN 107100854 A CN107100854 A CN 107100854A
- Authority
- CN
- China
- Prior art keywords
- pump
- noise
- impeller
- washing machine
- import
- 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.)
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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
- 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
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
-
- 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
-
- 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
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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)
Abstract
The invention discloses a kind of high-efficient low-noise drainage pump of washing machine, including the pump housing, filter, import choma, radial impeller, stamp axle, synchronous motor.The stamp axle that radial impeller passes through can be rotated forward or inverted according to motor steering by synchronous machine drives.Filter can be filtered to the debris in liquid stream.Import choma is provided with garter spring, rubber peel and steam vent, can reduce the noise of pump startup and idle discharge phase.Arrangement short blade, weakens the bad flowing in runner, and then improve efficiency in radial impeller runner.Impeller and stamp axle are direct-connected, and the shaft coupling between eliminating can further reduce energy consumption.The characteristics of present invention has efficiency high, noise is low, there is preferable application prospect in washing machine drainage equipment.
Description
Technical field
The present invention is a kind of pump configuration, is related to household appliance technical field, refers in particular to a kind of high efficiency, low noise drainage pump of washing machine
Structure.
Background technology
Washing machine turns into a kind of indispensable household electrical appliance, in recent years, with the reinforcement of environmental consciousness, " green home appliance "
Concept gradually proposed, country has promulgated a series of mandatory standards for household appliances, and the index such as low noise, low energy consumption is
Weigh the important indicator of washing machine performance quality.In order to reduce the noise of washing machine, domestic and foreign scholars and washing machine manufacturer
Carried out substantial amounts of research and development, from motor drive mode is updated to the measure such as eliminated the noise using acoustical cotton, the noise of draining pump into
The important indicator controlled for total noise of centrifuge.Current drainage pump of washing machine is mostly using the synchronous brshless DC motor of low noise, open type
Radial blade impeller and annular volute, the need for rotor axis of electric is connected by clutch with impeller to meet driving.With row
The reduction of pump motor noise, the noise of draining pump itself becomes prominent, and it is mainly shown as two ranks of starting period and idle discharge phase
Section.Startup stage, due to having gap inside clutch configuration, even if being contacted between motor shaft and impeller axle by buffer stopper, open
Collision when dynamic can still be brought in obvious impact noise, and pipe-line system causes transient state to imitate because fluid flow state change is too fast
Answer and produce noise.In the idle discharge phase, because remaining water is less, the centrifugal force that impeller is produced is not enough to residual water to be discharged to laundry
Outside machine, the residual water in drainpipe can be returned in draining pump by drainpipe, done work by impeller, between drainpipe and impeller
Periodic reverse motion.Residual water, which hits impeller, can produce periodic buzz, allow people to feel ill.Due to draining pump noise
Middle low frequency phase is in peak value more, and most sound-absorbing material is only effective in the high band stage, is made an uproar for improving draining pump fluid
Sound problem produces little effect.Patent ZL201310142482.X proposes a kind of draining pump and the washing machine with the draining pump, leads to
The relief hole that setting is connected with the intake tunnel on the bottom wall of impeller cavity is crossed, reaches that being effectively reduced the draining pump idle discharge phase makes an uproar
The purpose of sound, but the structure easy processing and not this method increase the energy consumption of draining pump.Through retrieval.
Upper drain washing machine field draining pump has that efficiency is low, noise in the prior art.
The content of the invention
It is an object of the invention to provide a kind of high-efficient low-noise drainage pump of washing machine, used with improving upper drain washing machine field
The draining efficiency of pump is low, reduction noise.
In order to solve the above technical problems, use of the present invention can carry out the synchronous motor of rotating and be set in import
Filter, so as to solve the problem of washing machine drainage impeller of pump is wound by debris；By using motor shaft and impeller axle integration
The method of design, it is more steady when cancelling clutch to reduce loss and impeller rotation, so as to substantially reduce mechanical noise；
By using radial impeller and back blade with short blade, to improve the efficiency and balancing axial thrust of draining pump；By using
The import choma of garter spring is set, its starting period and idle discharge phase flow noise are reduced to improve the whole efficiency of draining pump and reach
Purpose.Concrete technical scheme is as follows：
A kind of high-efficient low-noise drainage pump of washing machine, including filter (1), pump housing outlet (3), annular volute (4), back of the body choma
(5), rear pump cover (6), gland (7), pump housing import (8), radial impeller (9), roller (11), the pump housing import (8), the pump housing go out
Mouth (3) and the integrated manufacture of annular volute (4), it is characterised in that also include：One end of import choma (2) and stamp axle (10)
The output end of synchronous motor is fixed on, the other end is direct with radial impeller (9)；Radial impeller (9) is fixed by carrying on the back choma (5) one end
Position, rear pump cover (6) one end is fixed on back of the body choma (5) other end, and gland (7) is fixed on the other end of rear pump cover (6)；Roller (11)
For radial positioning stamp axle (10)；
Turned to by synchronous motor and rotated forward or inverted so that when blocking occurs in debris winding impeller,
Commutation is shut down to discharge debris；The import choma (2) is connected through a screw thread the outlet for being fixed on filter (1), filter
(1) it is arranged in pump housing import (8) with the big part debris in filtered fluid stream；
The import choma (2) is provided with the crack composition between garter spring, rubber peel, steam vent and rubber peel, to drop
Low pump startup and the noise of idle discharge phase.
Institute's impeller (9) and stamp axle (10) are direct-connected, eliminate shaft coupling, reduce the loss of transmission, improve efficiency.
Short blade is provided with radial impeller (9) runner, short blade is arranged on the centre position of runner, and short blade is radially
The geometrical relationship of position meets D1 '=1.1D1, D2 '=0.9D2；D1 ' is circular diameter where short blade inlet side, and D1 is to come into leaves
Circular diameter where piece inlet side, D2 ' is circular diameter where short blade outlet side, and D2 is circular diameter where linear leaf outlet side；It is short
Blade reduces the divergence loss in runner and secondary flow loss to weaken the axial whirlpool in runner, lifts waterpower
Efficiency；Short blade inlet side, which is inside contracted, can mitigate the ponding of draining pump inlet, short blade outlet side inside contract can reduce it is dynamic
Quiet interference effect, reduces noise.
The radial impeller (9) passes through stamp axle (10) and motor direct-connected, it is to avoid the transmission brought using shaft joint is made an uproar
Sound.
The outlet throat area of annular volute (4) isφ=0.63~0.68, to improve impeller and spiral case
Matching degree, and then improve the hydraulic efficiency of draining pump；F9For throat opening area, unit m2；For discharge coefficient；U2Justify for impeller outlet
Circular velocity, unit m/s.
The present invention the course of work be：After electrical power, rotor starts to start and rotated with moving axis and impeller,
The import of radial impeller 9 forms low-pressure area, and the effect of the fluid pressure difference of pump housing import 8 is flowed slowly into draining pump.It is miscellaneous in fluid
After thing is filtered by filter 1, the rubber peel of mouthful choma 2 is driven on remaining liq top into.With the increase of flow, the tonicity of rubber peel is gradually
It is increased up and opens completely, current gradually smoothly enters the acting of radial impeller 9 region.Radial impeller 9 is rotated clockwise pair
Fluid enters acting, and liquid stream flows out draining pump along the chamber movement of annular volute 4 through pump housing outlet.Segment fluid flow leaves radial impeller 9
Afterwards, into the chamber between back of the body choma 5 and radial impeller 9, by the acting of back blade 12, highly pressurised liquid is formed in rear chamber,
And then balance portion axial force.And in the idle discharge phase, with the reduction of flow, the rubber peel of import choma 2 is gradually closed, weaken
Propagation from idle discharge phase noise to import.When drainpipe reclaimed water flows back, the air in osculum is slowly discharged so that annular volute 4
The water shock impeller of the inside residual is gentler, and then reduces noise.
The beneficial effects of the present invention are：The present invention is eliminated by using the direct-connected scheme of stamp axle and radial impeller
Shaft coupling so that middle transmission link is reduced, so as to improve integrally-built compact and transmission efficiency, the row of reducing
Rotational noise during water pump operation；The present invention is by using the scheme that short blade is set in radial impeller runner so that runner
In axial whirlpool eliminate, reduce hydraulic loss, improve draining pump reliability of operation and corresponding efficiency；Short blade
Inlet side uses and inside contracts scheme so that the blocking of tunnel inlets mitigates, so as to reduce the turbulence of inlet flow；Short blade goes out
Mouth side, which is used, inside contracts scheme so that the stator-rotor interaction effect reduction of impeller, and then reduces the running noises of draining pump；The present invention
Using the scheme that import choma is installed in filter one end so that draining pump startup moment water inlet pipe flow velocity has declined, so that
Inhibit the noise in start-up course；In addition, the program causes the partial air of draining pump idle discharge phase to be discharged from steam vent, go out
The backwater shock impeller of mouth is gentler, so as to reduce the noise of idle discharge phase.
Brief description of the drawings
Fig. 1：The overall structure of the draining pump of the present invention
Fig. 2：Radial impeller structure chart of the present invention
Fig. 3：Pump housing figure of the present invention
Fig. 4：Filter of the present invention
Fig. 5：Import choma of the present invention
In figure：1 filter, 2 import chomas, 3 pump housing outlets, 4 annular volutes, 5 back of the body chomas, 6 rear pump covers, 7 glands, 8 pumps
Body import, 9 radial impellers, 10 stamp axles, 11 bearing housings.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, technical scheme is described in further details.
As shown in Fig. 2 the impeller of the present invention includes linear leaf 13, short blade 14 and the part of back blade 15 3.Radial direction leaf
The back blade 15 of wheel 9 is mainly used to balancing axial thrust.Addition short blade 14, Ke Yixiao is flowed through between impeller linear leaf 13
Axial whirlpool in weak current road, and then the divergence loss in runner and secondary flow loss are reduced, lift hydraulic efficiency.
With reference to Fig. 3, the pump housing of the invention mainly includes import 8, outlet 3 and annular volute 4；The design of annular volute 4
With reference to the design of permanent lifting pump, based on the consideration for the matching degree for improving radial impeller 9 and annular volute 4, annular volute 4 is selected
Throat opening area isWherein F9For throat opening area m2；φ is discharge coefficient；U2Justify for impeller outlet
Circular velocity, m/s；.
With reference to Fig. 4 and Fig. 5, inlet part of the present invention includes filter 1, and import choma 2；Filter 1 is provided with
Two baffle plates of 180 ° of distributions, its radial dimension matches with water inlet end.The baffle plate can effectively prevent radial impeller 9 from blocking,
And effectively prevent the full foreign matter of filter plug 1, and then the effective service efficiency for extending draining pump.Import choma 2 passes through spiral shell
Line is fastened on the outlet of filter 1, is made up of steam vent 19, garter spring 20, rubber peel 22 and corresponding crack 21.Motor
Start moment, the device rubber peel 22 opens along crack 21, current are begun through, and with flow increase aperture become it is big until
Standard-sized sheet, SR is changed with this, is delayed to start the change of moment water inlet pipe flow velocity, is reached and suppress startup stage hydrodynamic
Purpose.The very little that become a mandarin at the idle discharge phase, import does not become a mandarin, due to elastic reaction, and rubber peel can reset to closed state, only
Steam vent 19 is left with air to be connected.So on the one hand be conducive to, by the noise closing of drainage period, weakening noise and propagating to import；
On the one hand the ability that gas flows into, flows out draining pump is reduced, when the water backflow in drainpipe, the air in draining pump can lead to
Cross steam vent 19 slowly to discharge so that the water remained in drainpipe, the process for hitting radial impeller 9 is gentler, so that
Reduce noise.
Claims (5)
1. a kind of high-efficient low-noise drainage pump of washing machine, including filter (1), pump housing outlet (3), annular volute (4), back of the body choma
(5), rear pump cover (6), gland (7), pump housing import (8), radial impeller (9), roller (11), the pump housing import (8), the pump housing go out
Mouth (3) and the integrated manufacture of annular volute (4), it is characterised in that also include：One end of import choma (2) and stamp axle (10)
The output end of synchronous motor is fixed on, the other end is direct with radial impeller (9)；Radial impeller (9) is fixed by carrying on the back choma (5) one end
Position, rear pump cover (6) one end is fixed on back of the body choma (5) other end, and gland (7) is fixed on the other end of rear pump cover (6)；Roller (11)
For radial positioning stamp axle (10)；
Turned to by synchronous motor and rotated forward or inverted, to meet the dewatering needs of different operating modes；The import choma (2)
The outlet for being fixed on filter (1) is connected through a screw thread, filter (1) is arranged in pump housing import (8) with filtered fluid stream
Big part debris；
The import choma (2) is provided with the crack composition between garter spring, rubber peel, steam vent and rubber peel, to reduce pump
Start the noise with the idle discharge phase.
2. a kind of high-efficient low-noise drainage pump of washing machine according to claim 1, it is characterised in that：The impeller (9) and print
Floral axis (10) is direct-connected, eliminates shaft coupling, reduces the loss of transmission, improves efficiency.
3. a kind of high-efficient low-noise drainage pump of washing machine according to claims 1, it is characterised in that：The radial impeller
(9) short blade is provided with runner, short blade is arranged on the centre position of runner, and the geometrical relationship of short blade radial position is met
D1'=1.1D1, D2'=0.9D2；D1' is circular diameter where short blade inlet side, and D1 is circular diameter where linear leaf inlet side,
D2' is circular diameter where short blade outlet side, and D2 is circular diameter where linear leaf outlet side；Short blade is to weaken in runner
Axial whirlpool, and then the divergence loss in runner and secondary flow loss are reduced, lift hydraulic efficiency；Short blade inlet side is inside contracted
The ponding of draining pump inlet can be mitigated, short blade outlet side, which is inside contracted, can reduce stator-rotor interaction effect, reduce noise.
4. a kind of high-efficient low-noise drainage pump of washing machine according to claims 1, it is characterised in that：The radial impeller
(9) stamp axle (10) and motor direct-connected are passed through, it is to avoid the rotational noise brought using shaft joint.
5. a kind of high-efficient low-noise drainage pump of washing machine according to claim 1, it is characterised in that the outlet of annular volute (4)
Throat opening area isφ=0.63~0.68, to improve the matching degree of impeller and spiral case, and then improves the water of draining pump
Force efficiency；F9For throat opening area, unit m2；For discharge coefficient；U2For impeller outlet peripheral speed, unit m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326632.0A CN107100854B (en) | 2017-05-10 | 2017-05-10 | A kind of high-efficient low-noise drainage pump of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326632.0A CN107100854B (en) | 2017-05-10 | 2017-05-10 | A kind of high-efficient low-noise drainage pump of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107100854A true CN107100854A (en) | 2017-08-29 |
| CN107100854B CN107100854B (en) | 2018-12-25 |
Family
ID=59668794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326632.0A Active CN107100854B (en) | 2017-05-10 | 2017-05-10 | A kind of high-efficient low-noise drainage pump of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100854B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109717811A (en) * | 2019-01-10 | 2019-05-07 | 佛山市顺德区美的洗涤电器制造有限公司 | The draining pump of washing facility and washing facility with it |
| CN110094335A (en) * | 2019-06-21 | 2019-08-06 | 江苏大学 | A kind of small-sized draining pump of reliable low noise of energy conservation |
| CN110469541A (en) * | 2018-05-09 | 2019-11-19 | 德昌电机(深圳)有限公司 | A kind of draining pump and the washing machine using the draining pump |
| CN110805572A (en) * | 2019-11-26 | 2020-02-18 | 赵中江 | Anti-blocking impeller of centrifugal pump |
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| CN2578635Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible outward segment |
| JP2011144717A (en) * | 2010-01-12 | 2011-07-28 | Kawamoto Pump Mfg Co Ltd | Pump |
| CN102588352A (en) * | 2012-01-13 | 2012-07-18 | 无锡好力泵业有限公司 | Permanent-magnetic draining pump |
| CN203532273U (en) * | 2013-11-11 | 2014-04-09 | 常州雷利电机科技有限公司 | Low-noise draining pump and filtering screen |
| CN206129710U (en) * | 2016-10-18 | 2017-04-26 | 江门市地尔汉宇电器股份有限公司 | Pump cover inlet tube is provided with drain pump of check valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578634Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible inward segment |
| CN2578635Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible outward segment |
| JP2011144717A (en) * | 2010-01-12 | 2011-07-28 | Kawamoto Pump Mfg Co Ltd | Pump |
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| CN203532273U (en) * | 2013-11-11 | 2014-04-09 | 常州雷利电机科技有限公司 | Low-noise draining pump and filtering screen |
| CN206129710U (en) * | 2016-10-18 | 2017-04-26 | 江门市地尔汉宇电器股份有限公司 | Pump cover inlet tube is provided with drain pump of check valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469541A (en) * | 2018-05-09 | 2019-11-19 | 德昌电机(深圳)有限公司 | A kind of draining pump and the washing machine using the draining pump |
| CN109717811A (en) * | 2019-01-10 | 2019-05-07 | 佛山市顺德区美的洗涤电器制造有限公司 | The draining pump of washing facility and washing facility with it |
| CN110094335A (en) * | 2019-06-21 | 2019-08-06 | 江苏大学 | A kind of small-sized draining pump of reliable low noise of energy conservation |
| CN110805572A (en) * | 2019-11-26 | 2020-02-18 | 赵中江 | Anti-blocking impeller of centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107100854B (en) | 2018-12-25 |
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Effective date of registration: 20220120 Address after: 214000 Renmin West Road, Yangshan Town, Huishan District, Wuxi City, Jiangsu Province Patentee after: WUXI HAOLI PUMPS INDUSTRIAL Co.,Ltd. Address before: No. 301 Xuefu Road, Zhenjiang City, Jiangsu Province, 212000 Patentee before: JIANGSU University |
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