CN204003597U - A kind of high-lift water-discharged pump - Google Patents
A kind of high-lift water-discharged pump Download PDFInfo
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- CN204003597U CN204003597U CN201420469632.8U CN201420469632U CN204003597U CN 204003597 U CN204003597 U CN 204003597U CN 201420469632 U CN201420469632 U CN 201420469632U CN 204003597 U CN204003597 U CN 204003597U
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Abstract
The utility model discloses a kind of high-lift water-discharged pump, include the pump housing, impeller and drive the motor of this wheel rotation; The described pump housing comprises water intake and water outlet; Described impeller is arranged in the pump chamber forming between the pump housing and motor; Described impeller comprises wheel shaft and blade; Described blade taking axle axis as circle center's line, be radial and be evenly distributed on wheel shaft, described blade is from wheel shaft edge toward extension; It is characterized in that, the angle α scope between adjacent blades is 30o-60o.Adopt the technical solution of the utility model, can obviously improve lift, discharge pressure is large, and drainage efficiency is high, the high-lift single-phase permanent-magnet synchronous motor draining pump that security and stability is good.Preferred technological scheme is that the angle α scope between adjacent blades is 30o-60o.
Description
Technical field
The utility model relates to draining pump field, especially a kind of high-lift single-phase permanent-magnet synchronous motor draining pump that is applied to the household electric appliance such as dishwasher, washing machine.
Background technique
Washing machine has two kinds of drainage patterns, descends draining and upper draining, lower draining is to carry out effluent by differential water pressures, and this drainage pattern is generally used on pulsator washing machine; And upper draining is by draining pump, sewage to be discharged, this drainage pattern is generally applied to roller washing machine.Single-phase permanent-magnet synchronous motor draining pump, drives drain pump impeller to rotate by single-phase permanent-magnet synchronous motor, and the sewage after the household electric appliance washings such as washing machine is discharged.This drainage pattern is upper draining, and upper draining is with respect to a remarkable advantage of lower draining, is exactly that the water of discharging can secondary cycle utilization, as rushes toilet, mops floor etc., has greatly saved water resources.Along with the raising of the promotion to energy-conserving and environment-protective and Consumer's using water wisely consciousness, the utilization of washing machine drainage secondary is extensive gradually, also start on the market to occur the secondary utilization device for washing machine drainage, this device comprises a water storage box, the position operated by rotary motion of this water storage box is on certain altitude, facilitate the secondary utilization of water, so just the draining lift of washing machine has been had to certain requirement.
Existing single-phase permanent-magnet synchronous motor draining pump is due to the impact of structure and size, and in the time of work, common discharge pressure is less, and not only drainage efficiency is low, has extended the time of draining, and can not reach desirable lift ability.
Model utility content
The purpose of this utility model is to provide one can obviously improve lift, and discharge pressure is large, and drainage efficiency is high, the high-lift single-phase permanent-magnet synchronous motor draining pump that security and stability is good.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, this high-lift water-discharged pump includes the pump housing, impeller and drives the motor of this wheel rotation; The described pump housing comprises water intake and water outlet; Described impeller is arranged in the pump chamber forming between the pump housing and motor; Described impeller comprises wheel shaft and blade; Described blade taking axle axis as circle center's line, be radial and be evenly distributed on wheel shaft, described blade is from wheel shaft edge toward extension; Angle α scope between adjacent blades is 30o-60o.
Because the angular range between adjacent blades is 30o-60o, impeller blade number within the scope of this can meet the requirement of draining lift and efficiency simultaneously, because along with increasing of the number of blade, blade strengthens the effect of liquid, and larger discharge pressure can be provided, and draining lift is high, if but blade is too much, squeeze seriously, skin-friction loss increases, and efficiency will decline.
Further improve and be, described angle α is 36 °, also be that the draining pump number of blade is 10, comprehensive lift and efficiency are considered the quantity of the blade of design, inventor finally determine through a large amount of experiments the blade that designs number, but not random appointment, checking by experiment, other numbers of blade are compared relatively, and 10 blade row water pumps not only can reach the needs of lift, and can realize the optimization of power of motor.
Further improve and be, described motor is single-phase permanent-magnet synchronous motor.
Further improve and be, the peak of described blade on wheel shaft and motor be in the same side of water outlet center line, and distance A between this peak and water outlet center line is 0-6mm.
The position of impeller blade in pump chamber also can produce to the impact of closing lift, blade is the same side at water outlet center line at the peak of wheel shaft and synchronous machine, and the distance A between this peak and water outlet center line is 0-6mm, under this kind of structure, impeller blade is partial to water outlet centerline direction to the active force of working medium, can reach larger discharge pressure, working efficiency is higher.
Further improve and be, the top edge of described blade from wheel shaft edge outwards and draw close to bottom margin, makes the angle β between top edge and the external margin of blade be greater than 90 °.
Impeller blade top edge and external margin angle β are greater than 90 °, the draining pump of this kind of structure has stronger rejection thing ability, because the distance of blade and pump housing inwall is along with wheel shaft position outwards expands gradually, the foreign matters such as some the fragment rubbish in sewage are got rid of along blade top edge, greatly reduce foreign matter in this interval possibility existing, be difficult for being stuck between impeller and water pump shell, thereby effectively improved the security and stability of draining pump work.
Further improve and be, described angle β is 95-135 °; Comprehensive draining amount and foreign matter are considered the angle of design, and inventor finally determines that through a large amount of experiments the angle of design is 95-135 °, but not arbitrarily specify.
Further improve and be, described blade also includes a horizontal wheel disc, and the bottom margin of described blade is positioned on horizontal wheel disc and with it and offsets.
Make draining pump high-lift under, the stationarity can ensure wheel rotation time, and the impurity such as hair, fiber in can anti-sealing is wrapped on motor shaft, cause stall, and wheel disc, wheel shaft and blade be formed in one, make the location positioning between three, simple in structure, be applicable to batch production.
Further improve and be, the distance of the bottom margin of described blade and water outlet center line is H, and the minimum constructive height of described blade is h, wherein h/H=0.3-0.4; The in the situation that of ceteris paribus, within the specific limits, ratio is larger, and lift is larger, in this ratio range, can realize larger lift.
Further improve and be, the minimum constructive height of described blade is h, and the internal diameter of described water outlet is D1, wherein h/D1=0.2-0.25; The in the situation that of ceteris paribus, within the specific limits, ratio is larger, and lift is larger, in this ratio range, can realize larger lift.
Further improve and be, the minimum constructive height of described blade is h, and the external diameter of described impeller is D, and wherein h/D=0.1-0.15 verifies by experiment, can realize the optimization of lift and efficiency in this number range.
Brief description of the drawings
For content of the present utility model is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail below:
Fig. 1 is the high-lift water-discharged pump structure schematic diagram of the utility model;
Fig. 2 is the plan view of impeller in Fig. 1;
Fig. 3 is the structural representation of impeller in Fig. 1;
Fig. 4 is the structural representation with the impeller of wheel disc in Fig. 1;
Wherein: the 1-pump housing; 11-water intake; 12-water outlet; 2-impeller; 21-wheel shaft; 22-blade; The horizontal wheel disc of 23-; 3-motor; 4-pump chamber; 5-blade top edge.
Embodiment
For scheme of the present utility model is more easily expressly understood, be consistent below in conjunction with the position in embodiment and the accompanying drawing orientation word accompanying drawings such as the utility model is described in more detail, the upper and lower, left and right that below relate to.
High-lift water-discharged pump in the utility model, as shown in Figure 1, includes the pump housing 1, impeller 2 and drives the motor 3 of this wheel rotation; The described pump housing 1 comprises water intake 11 and water outlet 12; Described impeller 2 is arranged in the pump chamber 4 forming between the pump housing 1 and motor 3; Described impeller 2 comprises wheel shaft 21 and blade 22; Described blade 22 taking wheel shaft 21 axis as circle center's line, be radial and be evenly distributed on wheel shaft 21, described blade 22 is from wheel shaft 21 edges toward extension; Angle α scope between adjacent blades is 30o-60o.
As shown in Figure 2, angle α is 36 °, also has, and in the present embodiment, motor 3 is single-phase permanent-magnet synchronous motor.
In Fig. 1, the peak of blade 22 on wheel shaft 21 and motor be in the same side of water outlet center line, and distance A between this peak and water outlet 12 center lines is 4mm; As shown in Figure 3, the top edge of described blade 22 from wheel shaft edge outwards and draw close to bottom margin, make the angle β between top edge 5 and the external margin of blade be greater than 90 °, in figure, be 135 °, as shown in Figure 4, described blade 22 also includes a horizontal wheel disc 23, and the bottom margin of described blade 22 is positioned on horizontal wheel disc 23 and offsets with it.
Passable, the distance of the bottom margin of blade 22 and water outlet 12 center lines is H, and the minimum constructive height of described blade is h, wherein h/H=0.3-0.4.
Passable, the minimum constructive height of blade 22 is h, and the internal diameter of described water outlet 12 is D1, wherein h/D1=0.2-0.25.
Passable, the minimum constructive height of described blade 22 is h, and the external diameter of described impeller 2 is D, wherein h/D=0.1-0.15.
After motor 3 starts, impeller 2 rotates, and drives current to enter from the water intake 11 of the pump housing 1, the impeller 2 of this programme structure, active force to the pump housing 1 interior liquid strengthens greatly, can make the pump housing 1 water outlet 12 reach higher discharge pressure, makes motor 3 have higher water outlet lift and drainage efficiency.
Above-described specific embodiment; the purpose of this utility model, technological scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a high-lift water-discharged pump, includes the pump housing, impeller and drives the motor of this wheel rotation; The described pump housing comprises water intake and water outlet; Described impeller is arranged in the pump chamber forming between the pump housing and motor; Described impeller comprises wheel shaft and blade; Described blade taking axle axis as circle center's line, be radial and be evenly distributed on wheel shaft, described blade is from wheel shaft edge toward extension; It is characterized in that, the angle α scope between adjacent blades is 30o-60o.
2. high-lift water-discharged pump according to claim 1, is characterized in that, described angle α is 36 °.
3. high-lift water-discharged pump according to claim 1, is characterized in that, described motor is single-phase permanent-magnet synchronous motor.
4. according to the high-lift water-discharged pump described in claim 1-3 any one, it is characterized in that, the peak of described blade on wheel shaft and motor be in the same side of water outlet center line, and distance A between this peak and water outlet center line is 0-6mm.
5. high-lift water-discharged pump according to claim 4, is characterized in that, the top edge of described blade from wheel shaft edge outwards and draw close to bottom margin, makes the angle β between top edge and the external margin of blade be greater than 90 °.
6. high-lift water-discharged pump according to claim 5, is characterized in that, described angle β is 95-135 °.
7. high-lift water-discharged pump according to claim 5, is characterized in that, described blade also includes a horizontal wheel disc, and the bottom margin of described blade is positioned on horizontal wheel disc and with it and offsets.
8. high-lift water-discharged pump according to claim 4, is characterized in that, the distance of the bottom margin of described blade and water outlet center line is H, and the minimum constructive height of described blade is h, wherein h/H=0.3-0.4.
9. high-lift water-discharged pump according to claim 4, is characterized in that, the minimum constructive height of described blade is h, and the internal diameter of described water outlet is D1, wherein h/D1=0.2-0.25.
10. high-lift water-discharged pump according to claim 4, is characterized in that, the minimum constructive height of described blade is h, and the external diameter of described impeller is D, wherein h/D=0.1-0.15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469632.8U CN204003597U (en) | 2014-08-20 | 2014-08-20 | A kind of high-lift water-discharged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420469632.8U CN204003597U (en) | 2014-08-20 | 2014-08-20 | A kind of high-lift water-discharged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003597U true CN204003597U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420469632.8U Active CN204003597U (en) | 2014-08-20 | 2014-08-20 | A kind of high-lift water-discharged pump |
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| CN (1) | CN204003597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109196229A (en) * | 2017-04-10 | 2019-01-11 | 日本电产三协株式会社 | Pump installation |
| CN111946658A (en) * | 2019-05-14 | 2020-11-17 | 无锡小天鹅电器有限公司 | Impeller, draining pump and clothes treatment device |
-
2014
- 2014-08-20 CN CN201420469632.8U patent/CN204003597U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109196229A (en) * | 2017-04-10 | 2019-01-11 | 日本电产三协株式会社 | Pump installation |
| US11268517B2 (en) | 2017-04-10 | 2022-03-08 | Nidec Sankyo Corporation | Pump and impeller with auxiliary blades on the underside of the impeller and a permanent magnet rotor |
| CN111946658A (en) * | 2019-05-14 | 2020-11-17 | 无锡小天鹅电器有限公司 | Impeller, draining pump and clothes treatment device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |