CN103899541A - Draining pump - Google Patents
Draining pump Download PDFInfo
- Publication number
- CN103899541A CN103899541A CN201210582947.9A CN201210582947A CN103899541A CN 103899541 A CN103899541 A CN 103899541A CN 201210582947 A CN201210582947 A CN 201210582947A CN 103899541 A CN103899541 A CN 103899541A
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- wheel shaft
- draining pump
- upper blade
- motor
- impeller
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Abstract
The invention discloses a draining pump which comprises a water pump shell (1), a motor shell (2), an impeller (3), a motor (4) and a water retaining piece (5), wherein the motor (4) drives the impeller (3) to rotate to realize a draining function. The draining pump is characterized in that the impeller (3) comprises a wheel shaft (31) in the middle, upper blades (32) and a flow limiting ring (34), the wheel shaft (31) is connected with a motor shaft (6) of the motor (4), the upper blades (32) are configured on the peripheral side of the wheel shaft (31) around the wheel shaft (31), the flow limiting ring (34) surrounds the upper blades (32), the upper blades (32) transits to a connection portion (321) through a rounded portion (322a) or a chamfered portion (322b) and are connected with the wheel shaft (31) through the connection portion (321), and lower ends of the upper blades (32) are provided with lower blades (33). By the arrangement, flow of the draining pump at the water level limit can be guaranteed, and noises during operation at the low water level can be restricted.
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 in the time freezing operation, airborne moisture meeting condensation is also attached on heat exchanger, then dropping onto in the condense water disk that is located at heat exchanger below slowly, for the condensed water accumulating in this condense water disk is discharged, therefore be provided with the draining pump of this suction condensed water.This draining pump links together by motor shaft and the impeller of drive motor, in the time that drive motor makes vane rotary, the water accumulating in condense water disk will be inhaled into pump body from the water intake of water pump shell, under the effect of centrifugal force, is discharged from along water pump shell inwall.This draining pump requires to possess certain lift and flow, and Environmental Conditions has very strict noise requirement to it.This draining pump comes forth in a lot of patents.
The wherein disclosed a kind of draining pump of Chinese patent CN1804403A, comprise that underpart arranges water intake, and set out the pump housing at the mouth of a river in upper side, be placed in impeller and the motor that makes vane rotary in the pump housing, impeller comprises upper blade, is positioned at the current stabilization ring and the wheel shaft being connected with motor output shaft of short impeller, encirclement upper blade top outer rim and the short impeller outer edge heart between adjacent upper blade, main, short impeller is radial arrangement 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 exists such problem, be that condensed water enters into after pump housing part, the moment that starts draining can produce larger noise, this is because produce bubble in impeller liquid around, 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 once disclosed a kind of draining pump technological scheme, this draining pump is the pump body that discharge opening is set in upper side by suction port being set in underpart, the rotation motor formation that is accommodated in the intrinsic solid of rotation of said pump and above-mentioned solid of rotation is rotated freely, above-mentioned solid of rotation has axial region, connects the impeller of axis body (comprising that the parts such as large blade, small leaf, disk 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 exist manufacturing efficiency low, and draining pump high, medium and low each grade of lift noise in the time of draining can not take into account, so that produce larger noise in the time of indivedual lift.
Chinese patent ZL01801754.1 has shown 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 having taked the impeller of prismatic blade form, and workmanship efficiency is comparatively low, and the efficiency that is arranged so that the outside draining of blade of the peripheral collector ring of blade reduces greatly.
Summary of the invention
The object of the present invention is to provide one to address the above problem, ensureing that under the prerequisite of higher lift and flow, noise is lower, more can meet the requirement of Environmental Conditions, and the higher draining pump of manufacturing efficiency.
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, and block water plate, is provided with the wheel shaft being connected with the motor shaft of motor in the middle of described impeller comprises, with the upper blade that is 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 the height of described joint and wheel shaft connection place and upper blade, the ratio range of total height is 0.1 ~ 0.46, and described joint radial length and described the upper blade radially ratio range of total length are 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 underpart water intake of the diameter of described lower impeller and 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 top external diameter of wheel shaft and the internal diameter of 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:
The present invention has cancelled the metric space between inner edge and the wheel shaft of short impeller in existing draining pump and short impeller, not only can improve draining pump performance, and obtain higher lift and flow, and noise is lower.
On this basis, further find 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, ratio range best between the two is 0.1 ~ 0.46, this creationary proportionate relationship of selecting the present invention to propose, after can reducing condensed water and being inhaled into, encounter the bubble that upper blade produces, thereby play the effect that reduces noise.
On this basis, further find by test in a large number, repeatedly again, joint radial length and described upper blade radially total length have a very large influence to noise reduction is same, ratio range best between the two is 0.3 ~ 0.75, this creationary proportionate relationship of selecting the present invention to propose, after condensed water is inhaled into, encountering upper blade produces after bubble, the mobile meeting of bubble is more smooth and easy, can not clash into upper blade always and produce noise, condensed water also can flow to water outlet smoothly, thereby can make reducing noise.
And joint extends to top by fillet part or chamfered section, also can make condensed water can flow to smoothly water outlet, thereby further make reducing noise.
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, is provided with lower blade in the underpart of described upper blade, and the outer circumferential side of described upper blade is provided with restrictor ring.Can ensure like this, in the time that draining pump is in running order, to have better dynamic balancing, performance and noise are stable,
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 to 0.6 ~ 0.9, can, not affecting under the starting time of draining pump and the prerequisite of performance, further suppresses noise like this.
Further, the diameter ratio scope of the underpart water intake of the diameter of described lower blade and water pump shell is set as to 0.6 ~ 0.85, not only can ensures like this flow of draining pump in the time of limiting water level, and can suppress the low water level noise in when work.
The gap width scope of block water plate and motor casing end is set as 1 ~ 7mm, when out-of-work moment of draining pump, can guarantee that the backwater in waste pipe can not impact motor body, reduced the noise that backwater produces simultaneously, and in the situation that meeting applying working condition, the volume of draining pump has obtained 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 is reliably in conjunction with the long lifetime that has ensured draining pump.
Brief description of the drawings
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 of the present invention bottom.
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, straight knurling 61, the hatching knurling 62 that on 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.
Embodiment
For content of the present invention is more easily expressly understood, according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation below.
As shown in Figure 1, a kind of draining pump being arranged in air conditioner, comprise water pump shell (1), motor casing (2), impeller (3) and the described impeller of driving (3) rotate to realize the motor (4) of drain function, block water plate (5), is provided with the wheel shaft (31) being connected with the motor shaft (6) of motor (4) in the middle of described impeller (3), and 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 further detailed structure that impeller of the present invention (3) are shown 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) that is configured in wheel shaft (31) outer circumferential side centered by wheel shaft (31), and around the restrictor ring (34) of described upper blade (32), be provided with lower blade (33) in the underpart of described upper blade (32).The diameter ratio scope of the underpart water intake of the diameter of described lower blade (33) and water pump shell (1) is preferably 0.6 ~ 0.85, ratio range 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) and described upper blade (32) the radially ratio range of total length (L2) are 0.3 ~ 0.75, 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 width of described upper blade (32) in the vertical direction is even.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 be 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) is 35 ~ 65o with horizontal angle α.
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 more preferably 0.7 ~ 0.85, optimum range is 0.75 ~ 0.8.
As shown in Fig. 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; institute is 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 of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a draining pump, comprise water pump shell (1), motor casing (2), impeller (3) and the described impeller of driving (3) rotate to realize the motor (4) of drain function, block water plate (5), it is characterized in that: in the middle of described impeller (3) comprises, be provided with the wheel shaft (31) being connected with the motor shaft (6) of motor (4), with the upper blade (32) that is 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).
2. draining pump according to claim 1, it is characterized in that: 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), and described joint (321) radial length (L1) and described upper blade (32) the radially ratio range of total length (L2) are 0.3 ~ 0.75.
3. 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) is 35 ~ 65o with horizontal angle α.
4. 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.
5. draining pump according to claim 1, it is characterized in that: be provided with lower blade (33) in the underpart of described upper blade (32), the diameter ratio scope of the underpart water intake of the diameter of described lower blade (33) and water pump shell (1) is 0.6 ~ 0.85.
6. 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).
7. 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.
8. 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 true CN103899541A (en) | 2014-07-02 |
| CN103899541B 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) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151102A (en) * | 2015-04-24 | 2016-11-23 | 浙江三花股份有限公司 | Impeller and there is its draining pump |
| CN107299902A (en) * | 2016-04-15 | 2017-10-27 | 德昌电机(深圳)有限公司 | Draining pump and the household electrical appliance with the draining pump |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151102A (en) * | 2015-04-24 | 2016-11-23 | 浙江三花股份有限公司 | Impeller and there is its draining pump |
| 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 |
| CN107299902A (en) * | 2016-04-15 | 2017-10-27 | 德昌电机(深圳)有限公司 | Draining pump and the household electrical appliance with the draining pump |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103899541B (en) | 2016-03-02 |
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