CN103899541B - draining pump - Google Patents
draining pump Download PDFInfo
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- CN103899541B CN103899541B CN201210582947.9A CN201210582947A CN103899541B CN 103899541 B CN103899541 B CN 103899541B CN 201210582947 A CN201210582947 A CN 201210582947A CN 103899541 B CN103899541 B CN 103899541B
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- wheel shaft
- upper blade
- draining pump
- motor
- joint
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Abstract
The invention discloses a kind of draining pump, comprise water pump shell (1), motor casing (2), impeller (3) and drives impeller (3) rotate with the motor (4) realizing drain function, block water plate (5), it is characterized in that: described impeller (3) comprises centre and is provided with the wheel shaft (31) be connected with the motor shaft of motor (4) (6), with the upper blade (32) being configured in wheel shaft (31) outer circumferential side centered by wheel shaft (31), and around the restrictor ring (34) of described upper blade (32), described upper blade (32) transits to joint (321) by fillet part (322a) or chamfered section (322b), and be connected with wheel shaft (31) by joint (321), the underpart of upper blade (32) is provided with lower blade (33).Draining pump provided by the present invention, can ensure its flow when limiting water level, and noise when low water level can be suppressed to work.
Description
Technical field
The present invention relates to a kind of draining pump, particularly relate to one and be arranged in air conditioner, for the draining pump that the condensed water in condense water disk is discharged.
Background technique
The indoor unit of air conditioner is when carrying out refrigeration operation, moisture in air can also adhere on the heat exchanger in condensation, then slowly drop onto in the condense water disk that is located at below heat exchanger, in order to the condensed water that will accumulate in this condense water disk is discharged, therefore be provided with the draining pump of this suction condensed water.This draining pump is linked together by the motor shaft of drive motor and impeller, when drive motor makes vane rotary, the water accumulated in condense water disk will be inhaled into pump body from the water intake of water pump shell, is discharged under the influence of centrifugal force along water pump shell inwall.This draining pump requires to possess certain lift and flow, and Environmental Conditions has very strict noise requirements to it.This draining pump comes forth in a lot of patent.
Wherein a kind of draining pump disclosed in Chinese patent CN1804403A, comprise underpart and water intake is set, and the pump housing at the mouth of a river is set out in upper side, be placed in the impeller in the pump housing and the motor making vane rotary, impeller comprises upper blade, is positioned at the short impeller between adjacent upper vane, the current stabilization ring surrounding upper blade top outer rim and the short impeller outer edge heart and the wheel shaft be connected with motor output shaft, main, short impeller is radially arranged centered by the axle center of wheel shaft, the inner edge of upper blade is connected on wheel shaft, and the inner edge of short impeller and wheel shaft have a distance.This kind of draining pump also exists such problem, namely after condensed water enters into pump body portion, the moment starting draining can produce larger noise, this is because produce bubble in the liquid around impeller, this bubble hit impeller and water pump shell inwall can produce noise, and this draining lift of pump and flow lower.
Chinese patent ZL95107436.9 was once disclosed a kind of draining pump technological scheme, this draining pump arranges the pump body of discharge opening in upper side by arranging suction port in underpart, the rotatable motor formation being accommodated in the intrinsic solid of rotation of said pump and above-mentioned solid of rotation is rotated, above-mentioned solid of rotation has axle portion, connects the impeller of axis body (comprising the parts such as big leaf's slice, small leaf, disk to form).The blade of above-mentioned draining pump solid of rotation generally all adopts prismatic blade structure, this structure is convenient to Mould Machining manufacture, but it is low to there is manufacturing efficiency, and draining pump high, medium and low each shelves lift noise when draining can not be taken into account, so that produces larger noise when indivedual lift.
Chinese patent ZL01801754.1 illustrates another kind of draining pump structure.This drain pump impeller also adopts prismatic blade form, and in order to reduce noise, this draining pump is provided with condensed water collector ring in the periphery of blade.The draining pump of this structure is owing to taking the impeller of prismatic blade form, and workmanship efficiency is comparatively low, and blade periphery collector ring be arranged so that the efficiency of the outside draining of blade reduces greatly.
Summary of the invention
The object of the present invention is to provide one to solve the problem, under the prerequisite ensureing higher lift and flow, noise is lower, more can meet the requirement of Environmental Conditions, and the draining pump that manufacturing efficiency is higher.
Draining pump provided by the invention, comprise water pump shell, motor casing, impeller and the described vane rotary of driving are to realize the motor of drain function, block water plate, and described impeller comprises centre and is provided with the wheel shaft be connected with the motor shaft of motor, with the upper blade being configured in wheel shaft outer circumferential side centered by wheel shaft, and around the restrictor ring of described upper blade, described upper blade transits to joint by fillet part or chamfered section, and is connected with wheel shaft by joint.
Inside height and the upper blade of described joint and wheel shaft connection place, the ratio range of total height is 0.1 ~ 0.46, and the ratio range of described joint radial length and described upper blade radial direction total length is 0.3 ~ 0.75.
The radian of described fillet part is π/36 ~ π/12, and described chamfered section and horizontal angle α are 35 ~ 65o.
Described upper blade is evenly arranged on the outer circumferential side of wheel shaft, and upper blade is preferably set to 8.
The underpart of described upper blade is provided with lower blade, and the diameter ratio scope of the diameter of described lower impeller and the underpart water intake of water pump shell is 0.6 ~ 0.85.
The hollow portion of motor casing is run through on the top of described wheel shaft, and the ratio range of the internal diameter of the top external diameter of wheel shaft and motor casing hollow portion is 0.6 ~ 0.9.
The gap width scope of described block water plate and motor casing end is 1 ~ 7mm.
Described motor shaft end is provided with straight knurling or hatching knurling, and assembles with wheel shaft.
The invention has the beneficial effects as follows:
Present invention eliminates the metric space between the inner edge of short impeller in existing draining pump and short impeller and wheel shaft, draining pump performance can not only be improved, and obtain higher lift and flow, and noise is lower.
On this basis, find further by test in a large number, repeatedly, inside the height of the joint of upper blade and wheel shaft connection place and upper blade, total height has very large influence to noise reduction, therebetween best ratio range is 0.1 ~ 0.46, select this creationary proportionate relationship that the present invention proposes, can reduce after condensed water is inhaled into, encounter the bubble that upper blade produces, thus play the effect reducing noise.
On this basis, find further by test in a large number, repeatedly again, joint radial length has very large influence with the radial total length of described upper blade to noise reduction is same, therebetween best ratio range is 0.3 ~ 0.75, select this creationary proportionate relationship that the present invention proposes, after condensed water is inhaled into, after encountering upper blade generation bubble, the flowing of bubble can than smoothly, upper blade can not be clashed into always and produce noise, condensed water also can flow to water outlet smoothly, thus noise can be made to reduce.
And joint is extended to top by fillet part or chamfered section, condensed water also can be made can to flow to water outlet smoothly, thus make noise reduce further.
Upper blade is evenly arranged on the outer circumferential side of wheel shaft, although the quantity of upper blade is adjustable, the present invention is preferably set to 8, and the underpart of described upper blade is provided with lower blade, and the outer circumferential side of described upper blade is provided with restrictor ring.Can ensure like this when draining pump is in running order, have better dynamic balancing, performance and noise are stablized,
In addition, the ratio range of the internal diameter of the external diameter on the top of described wheel shaft and described hollow portion is set as 0.6 ~ 0.9, under the prerequisite of the starting time and performance that do not affect draining pump, further can suppresses noise like this.
Further, be 0.6 ~ 0.85 by the diameter ratio range set of the underpart water intake of the diameter of described lower blade and water pump shell, the flow of draining pump when limiting water level can not only be ensured like this, and noise when low water level can be suppressed to work.
The gap width range set of block water plate and motor casing end is 1 ~ 7mm, then when draining pump out-of-work moment, can guarantee that the backwater in waste pipe can not impact motor body, reduce the noise that backwater produces simultaneously, and when meeting applying working condition, the volume of draining pump obtains restriction.
Electric electromechanics machine shaft end is provided with straight knurling or hatching knurling and wheel shaft and assembles, and not only technique is simple, and the two combines the long lifetime that ensure that draining pump reliably.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of draining pump of the present invention.
Fig. 2 is the stereogram of upper impeller of the present invention.
Fig. 3 is the stereogram of impeller bottom of the present invention.
Fig. 4 is the sectional drawing of impeller of the present invention.
Fig. 5 is the first structural representation of upper blade of the present invention.
Fig. 6 is the second structural representation of upper blade of the present invention.
Fig. 7 is the sectional view that motor casing of the present invention coordinates with impeller.
Fig. 8 is the sectional view that block water plate of the present invention coordinates with motor casing.
Fig. 9 is the structural representation that motor shaft of the present invention coordinates with impeller wheel shaft.
Figure 10 is the structural representation of motor shaft straight knurling of the present invention.
Figure 11 is the structural representation of motor shaft hatching knurling of the present invention.
Label in accompanying drawing is:
The joint 321 that water pump shell 1, motor casing 2, impeller 3, motor 4, block water plate 5, motor shaft 6, motor casing hollow portion 21, wheel shaft 31, upper blade 32, lower blade 33, restrictor ring 34, upper blade 32 are connected with wheel shaft 31, straight knurling 61, hatching knurling 62.
Embodiment
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation.
As shown in Figure 1, a kind of draining pump be arranged in air conditioner, comprise water pump shell (1), motor casing (2), impeller (3) and the described impeller of driving (3) rotate with the motor (4) realizing drain function, block water plate (5), be provided with the wheel shaft (31) be connected with the motor shaft of motor (4) (6) in the middle of described impeller (3), the hollow portion (21) of motor casing (2) is run through on the top of described wheel shaft (31).Motor casing top is provided with block water plate (5), and block water plate (5) is 1 ~ 7mm (as shown in Figure 8) with the gap width A scope of motor casing (2) end.
The structure that impeller of the present invention (3) are shown detailed further in Fig. 2 and Fig. 3, as shown in Figures 2 and 3, described impeller (3) comprises wheel shaft (31), with the upper blade (32) being configured in wheel shaft (31) outer circumferential side centered by wheel shaft (31), and around the restrictor ring (34) of described upper blade (32), the underpart of described upper blade (32) is provided with lower blade (33).The diameter ratio of the diameter of described lower blade (33) and the underpart water intake of water pump shell (1) ranges preferably from 0.6 ~ 0.85, and ratio range is more preferably 0.7 ~ 0.8.
Described upper blade (32) is evenly arranged on the outer circumferential side of wheel shaft (31), and described upper blade (32) is preferably set to 8.
And as shown in Figure 4, the inner side of described upper blade (32) is connected with wheel shaft (31) by joint (321), the height (H1) of described joint (321) and wheel shaft (31) joint is 0.1 ~ 0.46 with the ratio range of upper blade (32) inner side total height (H2), preferred ratio range is 0.15 ~ 0.4, preferred ratio range is 0.20 ~ 0.38, and best ratio range is 0.25 ~ 0.3.
Described joint (321) radial length (L1) is 0.3 ~ 0.75 with the ratio range of described upper blade (32) radial total length (L2), preferred ratio range is 0.35 ~ 0.65, preferred ratio range is 0.4 ~ 0.6, and best ratio range is 0.45 ~ 0.55.
As shown in Figure 5, the even width of described upper blade (32) in the vertical direction.But be preferably designed as, joint (321) is the narrowest with the joint of wheel shaft (31), extends and broaden gradually to top.Described upper blade (32) transits to joint (321) by fillet part (322a), and is connected with wheel shaft (31) by joint (321), and the radian of preferred described fillet part (322a) is π/36 ~ π/12.
Also can as shown in Figure 6, described upper blade (32) transits to joint (321) by chamfered section (322b), and is connected with wheel shaft (31), and preferred described chamfered section (322b) and horizontal angle α are 35 ~ 65o.
As shown in Figure 7, the hollow portion (21) of motor casing (2) is run through on the top of described wheel shaft (31), the external diameter (R1) on the top of described wheel shaft (31) is preferably 0.6 ~ 0.9 with the ratio range of the internal diameter (R2) of described hollow portion (21), ratio range is more preferably 0.7 ~ 0.85, and optimum range is 0.75 ~ 0.8.
As shown in figs. 9-11, described motor shaft (6) axle head is provided with straight knurling (61) or hatching knurling (62) and assembles with wheel shaft (31).
Above-described specific embodiment; object of the present invention, technological scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a draining pump, comprise water pump shell (1), motor casing (2), impeller (3) and the described impeller of driving (3) rotate with the motor (4) realizing drain function, block water plate (5), it is characterized in that: described impeller (3) comprises centre and is provided with the wheel shaft (31) be connected with the motor shaft of motor (4) (6), with the upper blade (32) being configured in wheel shaft (31) outer circumferential side centered by wheel shaft (31), and around the restrictor ring (34) of described upper blade (32), described upper blade (32) transits to joint (321) by fillet part (322a) or chamfered section (322b), and be connected with wheel shaft (31) by joint (321), the height (H1) of described joint (321) and wheel shaft (31) joint is 0.1 ~ 0.46 with the ratio range of upper blade (32) inner side total height (H2), described joint (321) radial length (L1) is 0.3 ~ 0.75 with the ratio range of described upper blade (32) radial total length (L2).
2. draining pump according to claim 1, is characterized in that: the radian of described fillet part (322a) is π/36 ~ π/12, and described chamfered section (322b) and horizontal angle α are 35 ~ 65 °.
3. draining pump according to claim 1, is characterized in that: described upper blade (32) is evenly arranged on the outer circumferential side of wheel shaft (31), and described upper blade (32) is set to 8.
4. draining pump according to claim 1, it is characterized in that: the underpart of described upper blade (32) is provided with lower blade (33), the diameter ratio scope of the diameter of described lower blade (33) and the underpart water intake of water pump shell (1) is 0.6 ~ 0.85.
5. draining pump according to claim 1, it is characterized in that: the hollow portion (21) of motor casing (2) is run through on the top of described wheel shaft (31), the external diameter (R1) on the top of described wheel shaft (31) is 0.6 ~ 0.9 with the ratio range of the internal diameter (R2) of described hollow portion (21).
6. draining pump according to claim 1, is characterized in that: described block water plate (5) is 1 ~ 7mm with the scope of the gap width of motor casing (2) end.
7. draining pump according to claim 1, is characterized in that: described motor shaft (6) axle head is provided with straight knurling (61) or hatching knurling (62), and assembles with wheel shaft (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582947.9A CN103899541B (en) | 2012-12-28 | 2012-12-28 | draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210582947.9A CN103899541B (en) | 2012-12-28 | 2012-12-28 | draining pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899541A CN103899541A (en) | 2014-07-02 |
| CN103899541B true CN103899541B (en) | 2016-03-02 |
Family
ID=50991061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210582947.9A Active CN103899541B (en) | 2012-12-28 | 2012-12-28 | draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899541B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151102B (en) * | 2015-04-24 | 2019-03-29 | 浙江三花制冷集团有限公司 | Impeller and draining pump with it |
| CN107299902B (en) * | 2016-04-15 | 2021-06-25 | 德昌电机(深圳)有限公司 | Drain pump and household appliance with same |
| CN108518344A (en) * | 2018-03-28 | 2018-09-11 | 广东知识城运营服务有限公司 | A kind of efficient electric pumping unit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123977A (en) * | 1999-10-27 | 2001-05-08 | Saginomiya Seisakusho Inc | Drainage pump |
| JP2002048092A (en) * | 2000-08-02 | 2002-02-15 | Taisan Kogyo Kk | Drain pump |
| JP2002242885A (en) * | 2001-02-20 | 2002-08-28 | Taisan Kogyo Kk | Drainage pump |
| CN1383476A (en) * | 2000-06-21 | 2002-12-04 | 株式会社鹭宫制作所 | Drainage pump for condensated water |
| CN1936336A (en) * | 2005-09-22 | 2007-03-28 | 株式会社不二工机 | Drainage pump |
| CN1952404A (en) * | 2005-10-21 | 2007-04-25 | 株式会社不二工机 | Dischare pump |
| CN201218227Y (en) * | 2008-06-17 | 2009-04-08 | 唐铃凤 | Fire-resistant impeller of plastic pump |
| CN203009312U (en) * | 2012-12-28 | 2013-06-19 | 常州雷利电机科技有限公司 | Draining pump |
-
2012
- 2012-12-28 CN CN201210582947.9A patent/CN103899541B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001123977A (en) * | 1999-10-27 | 2001-05-08 | Saginomiya Seisakusho Inc | Drainage pump |
| CN1383476A (en) * | 2000-06-21 | 2002-12-04 | 株式会社鹭宫制作所 | Drainage pump for condensated water |
| JP2002048092A (en) * | 2000-08-02 | 2002-02-15 | Taisan Kogyo Kk | Drain pump |
| JP2002242885A (en) * | 2001-02-20 | 2002-08-28 | Taisan Kogyo Kk | Drainage pump |
| CN1936336A (en) * | 2005-09-22 | 2007-03-28 | 株式会社不二工机 | Drainage pump |
| CN1952404A (en) * | 2005-10-21 | 2007-04-25 | 株式会社不二工机 | Dischare pump |
| CN201218227Y (en) * | 2008-06-17 | 2009-04-08 | 唐铃凤 | Fire-resistant impeller of plastic pump |
| CN203009312U (en) * | 2012-12-28 | 2013-06-19 | 常州雷利电机科技有限公司 | Draining pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103899541A (en) | 2014-07-02 |
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