CN105927550A - Draining Pump - Google Patents
Draining Pump Download PDFInfo
- Publication number
- CN105927550A CN105927550A CN201510900573.4A CN201510900573A CN105927550A CN 105927550 A CN105927550 A CN 105927550A CN 201510900573 A CN201510900573 A CN 201510900573A CN 105927550 A CN105927550 A CN 105927550A
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- CN
- China
- Prior art keywords
- pump
- mentioned
- draining pump
- rotor
- blade
- 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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/14—Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A draining pump provided by the present invention can restrain the eruption of the bubbles inside the blades of a pump rotor, and can reduce the noise while enables the cutout lift rises. The draining pump of the present invention comprises a suction port, a discharging port, a pump casing of a rotor accommodating chamber, the pump rotor of large-diameter blades which can be configured in the rotor accommodating chamber of the pump casing rotatably and applies centrifugal force on the flow fluid introduced in by the suction port, a rotation driving mechanism of rotating the above pump rotor, an annular outer wall surrounding the above large-diameter blades, and a or a plurality of inner-outer diameter connecting part which forms a part of the outer wall in a manner of surrounding the peripheries of the upper edges of the above large-diameter blades, and of which the widths are less than 0.5 mm.
Description
Technical field
The present invention relates to draining pump, particularly relate to can higher keeping quite property, simultaneously cutout can be made to raise
The draining pump of Cheng Shangsheng.
Background technology
In air-conditioning equipment, it is known that the draining that the water by lodging in drain pan etc. are discharged to outside and arranged
Pump.In such draining pump, utilize that motor makes to be contained in pump chamber has big footpath blade and path blade
Pump rotor rotates, and utilizes the centrifugal force produced because of the collision with big footpath blade to make to be picked up by path blade
Water disperses to blade profile direction, and discharges from outlet.
In recent years, sought the minimizing of operation noise in air-conditioning equipment, and also sought to make to be arranged at this air-conditioning equipment
The operation sound of draining pump and be accompanied by this and the type of various noises that produces also reduces.Such as, even
Produce because of the action of draining pump small stir the underwater sound and also can become problem.
In conventional draining pump, known following technology: as Patent Document 1, by big footpath blade
Profile portion arranges ring (outer ring), it is possible to the expansion of the air layer of suppression blade interior, thus prevents from sky
Being involved in of the air of gas-bearing formation, and then noise when reducing big footpath blade agitation water.
Further, also known following technology: as shown in Figure 25, Figure 39 of patent documentation 2, by outer ring
A part window frame is set, make the water of the high pressure near blade outer ring flow out in pump accommodating chamber, it is thus possible to
Cutout lift is enough made to rise (H-Max).
Prior art literature
Patent documentation 1: No. 3254325 description of Japan Patent
Patent documentation 2: Japanese Unexamined Patent Publication 08-210289 publication
But, in the technology shown in patent documentation 2, if excessively increasing window frame, then the balance of pressure is deteriorated,
Thus have the problems such as noise penalty from window frame generation bubble.
Summary of the invention
Therefore, it is an object of the invention to provide the expansion of the air layer of the blade interior that can suppress pump rotor
Greatly, the draining pump that noise makes cutout lift rise simultaneously can be reduced.
In order to solve above-mentioned problem, the draining pump of the present invention is characterised by possessing: pump case, and it has
Suction inlet, outlet and rotor accommodating chamber；Pump rotor, it can be configured at said pump housing rotationally
In above-mentioned rotor accommodating chamber, and have and give the big of centrifugal force to the fluid that is imported into by above-mentioned suction inlet
Footpath blade；And rotary drive mechanism, it makes said pump rotor rotate, and said pump rotor is also equipped with: ring-type
Outer wall, it surrounds around above-mentioned big footpath blade；And one or more internal-and external diameter interconnecting part, it is arranged
In a part for the above-mentioned outer wall formed in the way of surrounding the periphery of the upper limb of above-mentioned big footpath blade, width is
Below 0.5mm.
Further, above-mentioned internal-and external diameter interconnecting part can also be two.
Further, the section of above-mentioned internal-and external diameter interconnecting part can also be rectilinear form.
Further, the section of above-mentioned internal-and external diameter interconnecting part can also be cone-shaped.
Further, the section of above-mentioned internal-and external diameter interconnecting part can also be step shape.
Further, by above-mentioned internal-and external diameter connected component from the part of above-mentioned outer wall can also be by above-mentioned big footpath leaf
Sheet supports.
Further, the parting line of the metal pattern forming above-mentioned internal-and external diameter interconnecting part can also be located at above-mentioned big footpath leaf
Sheet.
And, it is also possible to it is the air conditioning system possessing above-mentioned draining pump.
The effect of invention is as follows.
According to the present invention, it is possible to provide the expansion of the air layer of the blade interior of pump rotor can be suppressed, reduce and make an uproar
Sound can make the draining pump that cutout lift rises simultaneously.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of an embodiment of the draining pump representing the present invention.
Fig. 2 is the top perspective view of the pump rotor of the draining pump shown in Fig. 1.
Fig. 3 is the front sectional view of the pump rotor of the draining pump shown in Fig. 1, and Fig. 3 (a) is that sundstrand pump turns
Son and metal pattern and the front sectional view that represents, Fig. 3 (b) is the enlarged drawing shown in the IIIb of Fig. 3 (a),
Fig. 3 (c) is the figure of the slit representing the tapered shape of section, and Fig. 3 (d) is to represent that section is step shape
The figure of slit.
Fig. 4 is the front view of an embodiment of the pump rotor representing the draining pump constituting the present invention.
Fig. 5 is the front view of other embodiments of the pump rotor representing the draining pump constituting the present invention.
Fig. 6 is the slit width figure with the relation of noise of the draining pump representing the present invention.
Fig. 7 is the slit width figure with the relation of noise of the dual slit part of the draining pump representing the present invention.
Fig. 8 is the structure chart of the example of the air conditioning system representing the draining pump employing the present invention.
In figure:
100 draining pumps, 110 lower houses, 110a suction inlet, 110b rotor receiving portion, 110c
Minor diameter part, 110d outlet, 111,411,511 pump rotors, 111a comb blade (big footpath leaf
Sheet), 111b, 411b, 511b outer wall, 111c supporting mass, 111d cross shape portion (path leaf
Sheet), 111e armature spindle, 112,312,322,412,512a, 512b slit (internal-and external diameter connect
Portion), 120 upper shells, 121 drive motors, 121a output shaft, 122 bracket for mounting, 123
O, 800 air conditioning systems, 801 indoor heat exchangers, 802 expansion valves, 803 outdoor heat
Switch, 804 compressors, 805 drain pans, 806 draining pumps, 807 discharge outlet, 808 controls
Panel processed.
Detailed description of the invention
Hereinafter, referring to the drawings embodiments of the present invention are illustrated.
Fig. 1 is the figure of the structure of an embodiment of the draining pump representing the present invention.
In Fig. 1, draining pump 100 includes that lower component such as is constituted as staple: lower house 110；Energy
Enough pump rotors 111 being configured at rotationally in lower house 110；Formed together with the inner peripheral portion of lower house 110
The upper shell 120 of rotor accommodating chamber；It is configured at the top of upper shell 120 and drives the driving of pump rotor 111
With motor 121；And at inner containment drive motor 121 and be fixed on outside together with upper shell 120
Bracket for mounting 122.
Lower house 110 is formed as having: the suction inlet 110a that tubular ground extends to the lower section of central part bottom；
Rotor receiving portion 110b extended to funnel-form centered by suction inlet 110a；From rotor receiving portion 110b
The minor diameter part 110c that extends to the direction orthogonal with the central axis of suction inlet 110a of upper portion side wall；And
Outlet 110d from the extension of minor diameter part 110c side further out.As described later, lower house 110
One end of suction inlet 110a is such as configured at drain pan 805 (with reference to Fig. 8), outlet 110d such as with row
Outlet 807 (with reference to Fig. 8) connects.
It is formed at the cylindrical portion of lower end of upper shell 120 via O 123 and the pump of lower house 110
The opening of the upper end of receiving portion 110b connects, by par and the lower house of the lower end of upper shell 120
Pump receiving portion 110b of 110 forms pump accommodating chamber.Central shape in the par of the lower end of upper shell 120
Become through hole 120a.The armature spindle 111e of pump rotor 111 described later is inserted from below towards through hole 120a,
And the output shaft 121a of drive motor 121 described later is had from top connection.Therefore, pump case become by
Lower house 110 and upper shell 120 are formed.
Drive motor 121 such as can use the DC of the platypelloid type of applied voltage 12V or 13V brushless
Motor, it is supported on the top of upper shell 120.Further, the output shaft 121a of drive motor 121
Rotating speed also is able to control by control panel 802 (with reference to Fig. 8) described later according to delivery flow.Further,
Though the diagram of omission, but upper shell 120 has air connectivity hole in multiple positions.Additionally, drive motor
121 are not limited to above-mentioned example, it is also possible to be other DC motor, the band coding that can control rotating speed
AC motor, other the motors such as the shaded-pole motor of device.
Fig. 2 is the top perspective view of the pump rotor 111 of the draining pump 100 shown in Fig. 1, and Fig. 3 is Fig. 1 institute
The front sectional view of the pump rotor 111 of the draining pump 100 shown, Fig. 3 (a) is sundstrand pump rotor 100 He
Metal pattern 300 and the front sectional view that represents, Fig. 3 (b) is the enlarged drawing shown in the IIIb of Fig. 3 (a),
Fig. 3 (c) is the figure of the slit 312 representing the tapered shape of section, and Fig. 3 (d) is to represent that section is step
The figure of the slit 322 of shape.
As shown in Figure 1 to Figure 3, pump rotor 111 is such as integrally formed by resin material, and is formed as possessing:
Constitute the comb blade 111a of multiple quadrangular shapes of the big footpath blade of convection cell imparting centrifugal force；With many
The surrounding of individual comb blade 111a is adjacent to the ring-type outer wall 111b carrying out surrounding；To multiple comb blades
The lower end of 111a and outer wall 111b carries out the supporting mass 111c of the circular cone shape supported；Towards supporting mass
111c central authorities bottom extend cross shape body and be constitute stirred fluid and pick up the path of fluid
The cross shape portion 111d of blade；To supporting mass 111c central authorities top extend cylindrical shape body and
It is the armature spindle 111e that is connected of the output shaft 121a with drive motor 121.Resin material is the most transparent
Property material, or can also be black, the resin material of white or be mixed with the material of other colors.
Multiple comb blade 111a are such as by resin material and a bodily form such as supporting mass 111c, outer wall 111b
Become, and there is rectangular section.Further, multiple comb blade 111a configure the most at substantially equal intervals, and
It is configured to the interval from armature spindle 111e with regulation.Further, the height of multiple comb blade 111a is formed
Be positioned in common plane for position, respective the top, the length of multiple comb blade 111a be formed as from
Peripheral part is longer towards center.Additionally, the big footpath leaf being made up of multiple comb blades 111 of present embodiment
The diameter of sheet isThe diameter of the minor diameter part 110c of discharge path isBut do not limit
Due to this.Further, the sidewall of pump receiving portion 110b of lower house 110 and the outer wall 111b of pump rotor 111
Interval be 0.5～2.0mm, but be not limited to this.
Additionally, in the present embodiment, multiple comb leaves of quadrangular shape are employed as big footpath blade
Sheet 111a, but it is not limited to this, it is possible to use cylindrical shape, multiple comb blades of other shapes,
And multiple comb blade can not certainly be used, and use multiple vane plates in big footpath.Big by replacing
The vane plate in footpath and use multiple comb blade, have hole when can reduce rotation, when can reduce operating
The effect of noise.Further, as path blade, employ the blade of cross shape, but be not limited to
This, it is possible to use other shapes, and if fluid can be picked up with big footpath blade, then it is of course possible to not shape
Path blade is become to keep cylindrical shape.
Outer wall 111b is the expansion of the air layer in order to suppress blade interior and arranges, be therefore prevented from from
Being involved in of the air of air layer, thus the minimizing of noise is contributed to when big footpath blade agitation water.Specifically,
In the case of there is not outer wall 111b, due to after the blade that stirred out by big footpath blade the fluid of stream by court
Outer extruding, so causing pressure to decline, as result, is involved in air from the air layer of blade interior.Because of volume
Enter air and produce bubble, or the bubble produced ruptures in a large number, thus easily produce vibration, noise.With this
Relatively, in the case of there is outer wall 111b, due to flow after reducing the blade stirred out by big footpath blade
The pressure of fluid declines, it is possible to reduce the phenomenon being involved in air from air layer, as a result, it is possible to press down
Make the noise during blade agitation water of big footpath.Herein, the height of outer wall 111b is to make with as big footpath blade
Multiple height identical for comb blade 111a, if but the position higher than comb blade 111a, then can
Enough keeping quite property.
In the draining pump 100 of the present invention, it is provided with slit 112 at the outer wall 111b of pump rotor 111.Slit
112 parts being located at outer wall 111b, become the inside and outside internal-and external diameter connection of connection outer wall 111b
Portion.Slit 112 produces jet flow from the inside outward portion of outer wall 111b.Thus, the sidewall of pump accommodating chamber with
The pressure in the gap between the outer wall 111b of pump rotor 111 rises, in being pushed back by the air layer of blade interior
Side, and the expansion of the air layer of blade interior can be suppressed such that it is able to prevent the air from air layer
It is involved in, it is possible to reduce the noise during blade agitation water of big footpath further.Further, owing to utilizing jet flow to make blade
The water of the high pressure near outer ring is thus able to make cutout lift increase towards outflow in pump accommodating chamber.
As shown in Fig. 3 (a), in the case of at pump rotor 111, slit 112 is set, except not shown from
Use two the segmentation moulds caved in from left and right outside the metal pattern combined up and down semicirclely, arrange in its front end
The projection compareed with the shape of slit 112, it is also possible to shape with four metal patterns.Slit 112 can also
Arranging throughout complete cycle, in this case, the part of the outer wall 111b separated by slit 112 is by external diameter leaf
Sheet supports.Further, the parting line of the metal pattern forming slit 112 can also be located at big footpath blade.This situation
Under, owing to the burr in typing portion do not cover internal-and external diameter interconnecting part, so produce prevent hinder fluid flowing this
One effect.Further, as shown in Fig. 3 (b), the upper support of the slit 112 of outer wall 111b is in multiple combs
Tingia sheet 111a contacts the part of outer wall 111b.Further, the shape of slit can also replace Fig. 3 (b)
The slit 112 of shown rectilinear form, and as shown in Fig. 3 (c), it is the slit 312 of cone-shaped, or
It can also be the slit 322 of step shape as shown in Fig. 3 (d).
It follows that the relation of slit width with noise is illustrated.
Fig. 4 is the front view of an embodiment of the pump rotor representing the draining pump constituting the present invention.Such as figure
Shown in 4, it is provided with slit 412 at pump rotor 411 throughout the complete cycle of outer wall 411b.Use the pump shown in Fig. 4
Rotor 411, the width of change slit 412, and determine the result of noise as shown in Figure 6.
As the condition of the mensuration in Fig. 6, delivery flow is 400cm3/min.As shown in Figure 6, it is known that,
In the case of not having slit 412, noise uprises, if arranging slit 412, noise decrease, if making slit
The width ratio 0.5mm of 412 is big, and (in Fig. 6, more than 0.6mm) then noise uprises again.
Fig. 5 is the front view of other embodiments of the pump rotor representing the draining pump constituting the present invention.Such as figure
Shown in 5, it is provided with two slits 512a, 512b at pump rotor 511 throughout the complete cycle of outer wall 511b.Use
Pump rotor 511 shown in Fig. 5, the width of change slit 512a, 512b, and determine the result of noise
As shown in Figure 7.
As the condition of the mensuration in Fig. 7, delivery flow is 400cm3/min.As shown in Figure 7, it is known that,
In the case of not having slit 512a, 512b, noise uprises, if arranging slit 512a, 512b, noise subtracts
Few, if making big (in Fig. 7, more than 0.6mm) then noise of width ratio 0.5mm of slit 512a, 512b
Again uprise.
Above, as use Fig. 4 to Fig. 7 to illustrate, if at the outer wall of pump rotor 111,411,511
111b, 411b, 511b arrange slit 112,312,322,412, the peace of 512a, 512b then draining pump
Static stability uprises.Further, the bar number of slit be one, two or more all there is effect.Further, may be used
Know if slit width is below 0.5mm, then there is effect.
Additionally, by experiment: if slit 112,312,322,412, the position of 512a, 512b
The position more consistent with slit centrage than outlet centrage CL (Center Line) is top, and compares outer wall
The upper end of 111b, 411b, 511b on the lower, then suppresses the ejection of the bubble of blade interior, reduces noise, with
Time make cutout lift increase.Therefore, if the draining pump of present embodiment 100 also meets this condition, then obtain
Further effect.
Fig. 8 is the structure chart of the example of the air conditioning system representing the draining pump employing the present invention.In Fig. 8,
Air conditioning system 800 possesses indoor heat exchanger 801, expansion valve 802, outdoor heat exchanger 803 and pressure
Contracting machine 804.As well-known, air conditioning system 800 for can to cooling operation, heat operating switching ground
The indoor air conditioner (RAC) connected and constitute or air-conditioning box (PAC) etc..But, shown below
Drain pan 805 and draining pump 806 be only used for cooling operation, thus also be able to be only used for freeze cycle.
Air conditioning system 800 is also equipped with: is arranged at the vicinity of indoor heat exchanger 801, catches to condense and hand in Indoor Thermal
Change planes 801 the drain pan 805 of water droplet etc. of steam pipe arrangement etc.；Pick up the water droplet lodging in drain pan 805
Deng draining pump 806 (corresponding with the draining pump 100 of the present invention.)；Outlet 110d with draining pump 806
Connect and to externally drained discharge outlet 807；And be connected with draining pump 806 and drive draining pump 806
Control panel 808.
Owing to being configured at indoor heat exchanger 801 for the draining pump 806 of air conditioning system 800 as constructed as above
Vicinity, it requires the minimizing of operation noise, the draining pump 100 of the present invention also requires Gao An such
The environment of static stability uses.
As it has been described above, according to the present invention, it is possible to provide following draining pump: arrange by the outer wall at pump rotor
Bar or multiple slit, and to make slit width be below 0.5mm, thus suppress the air layer of blade interior
Expansion, reduce noise make cutout lift increase simultaneously.
Claims (8)
1. a draining pump, it is characterised in that possess:
Pump case, it has suction inlet, outlet and rotor accommodating chamber；
Pump rotor, it can be configured in the above-mentioned rotor accommodating chamber of said pump housing rotationally, and have right
The fluid being imported into by above-mentioned suction inlet gives the big footpath blade of centrifugal force；And
Rotary drive mechanism, it makes said pump rotor rotate,
Said pump rotor is also equipped with:
Ring-type outer wall, it surrounds around the blade of above-mentioned big footpath；And
One or more internal-and external diameter interconnecting part, it is arranged to surround the periphery of the upper limb of above-mentioned big footpath blade
A part for the above-mentioned outer wall that mode is formed, width is below 0.5mm.
Draining pump the most according to claim 1, it is characterised in that
Above-mentioned internal-and external diameter interconnecting part is two.
Draining pump the most according to claim 1 and 2, it is characterised in that
The section of above-mentioned internal-and external diameter interconnecting part is rectilinear form.
4. according to the draining pump described in any one of claims 1 to 3, it is characterised in that
The section of above-mentioned internal-and external diameter interconnecting part is cone-shaped.
5. according to the draining pump described in any one of Claims 1 to 4, it is characterised in that
The section of above-mentioned internal-and external diameter interconnecting part is step shape.
6. according to the draining pump described in any one of Claims 1 to 5, it is characterised in that
By above-mentioned internal-and external diameter connected component from the part of above-mentioned outer wall by above-mentioned big footpath supporting blades.
7. according to the draining pump described in any one of claim 1～6, it is characterised in that
Above-mentioned big footpath blade is located at by the parting line of the metal pattern forming above-mentioned internal-and external diameter interconnecting part.
8. an air conditioning system, it is characterised in that
Possesses the draining pump described in any one of claim 1～7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015036730A JP6001708B2 (en) | 2015-02-26 | 2015-02-26 | Drain pump |
| JP2015-036730 | 2015-02-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927550A true CN105927550A (en) | 2016-09-07 |
| CN105927550B CN105927550B (en) | 2019-03-29 |
Family
ID=56825497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510900573.4A Active CN105927550B (en) | 2015-02-26 | 2015-12-09 | Draining pump |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6001708B2 (en) |
| CN (1) | CN105927550B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6882959B2 (en) * | 2017-08-30 | 2021-06-02 | 株式会社鷺宮製作所 | Drainage pump and air conditioner |
| CN114109892B (en) * | 2021-11-08 | 2023-01-17 | 北新集团建材股份有限公司 | Foaming pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210289A (en) * | 1995-02-06 | 1996-08-20 | Fuji Koki Seisakusho:Kk | Drainage pump |
| CN1129717C (en) * | 1999-01-27 | 2003-12-03 | 株式会社不二工机 | Drainage pump |
| JP2004353492A (en) * | 2003-05-27 | 2004-12-16 | Saginomiya Seisakusho Inc | Vertical-shaft centrifugal pump and impeller for pump |
| CN1804403A (en) * | 2005-01-12 | 2006-07-19 | 浙江三花股份有限公司 | Draining pump |
| CN1936336A (en) * | 2005-09-22 | 2007-03-28 | 株式会社不二工机 | Drainage pump |
| JP2010007909A (en) * | 2008-06-25 | 2010-01-14 | Fujitsu General Ltd | Drain pump and air conditioner equipped with the same |
-
2015
- 2015-02-26 JP JP2015036730A patent/JP6001708B2/en active Active
- 2015-12-09 CN CN201510900573.4A patent/CN105927550B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08210289A (en) * | 1995-02-06 | 1996-08-20 | Fuji Koki Seisakusho:Kk | Drainage pump |
| CN1129717C (en) * | 1999-01-27 | 2003-12-03 | 株式会社不二工机 | Drainage pump |
| JP2004353492A (en) * | 2003-05-27 | 2004-12-16 | Saginomiya Seisakusho Inc | Vertical-shaft centrifugal pump and impeller for pump |
| CN1804403A (en) * | 2005-01-12 | 2006-07-19 | 浙江三花股份有限公司 | Draining pump |
| CN1936336A (en) * | 2005-09-22 | 2007-03-28 | 株式会社不二工机 | Drainage pump |
| JP2010007909A (en) * | 2008-06-25 | 2010-01-14 | Fujitsu General Ltd | Drain pump and air conditioner equipped with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6001708B2 (en) | 2016-10-05 |
| JP2016156364A (en) | 2016-09-01 |
| CN105927550B (en) | 2019-03-29 |
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