CN105464995B - draining pump - Google Patents

Abstract

The present invention provides a kind of draining pump, and quietness when can get operating further increases.Rotating vane (50) used in draining pump (1) includes major diameter blade (60), and there is the axle portion (52) from the output axis connection with motor to be formed as the water repellent face (110) of plate along the multi-disc that radiation direction extends；The path blade (54) of multi-disc plate, connect with the lower end edge portion of major diameter blade (60)；And auxiliary blade (68), with water repellent face (111) and it is located between adjacent major diameter blade (60).In major diameter blade (60) and the upside end edge portion and outside end edge portion of auxiliary blade (68), the stage portion (72 being oriented to equipped with the water flow transferred to the upside of blade and outside to blade, 74 and 82, 84), upside end edge portion water repellent face (75) and (76) are relative to water repellent face (110, 111) it is formed obliquely with predetermined angular, thus, by flowing water relative to water repellent face (110, 111) incidence angle and flowing water are relative to upside end edge portion water repellent face (75, and outside end edge portion water repellent face (85 76), 86) incidence angle is made roughly the same.

Description

Draining pump

Technical field

The present invention relates to a kind of draining pump, by the sluicing in drain pan to outdoor discharge, drain pan is received in the draining pump The water of the indoor heat exchanger condensation of air conditioner.

Background technique

In the past, in the air conditioner of the form in embedment indoor ceiling, it is equipped with drain pan, which receives in sky The sluicing of the surface condensation of the indoor heat exchanger of tune machine.In order to by the sluicing in the drain pan to outdoor discharge, and the row of use Water pump (sluice pump).

In the following, present applicant association applied and disclosed air conditioner used in draining pump (patent document 2) And the present application is illustrated.Figure 11 is one to the draining pump being illustrated in patent document 2 as the prior art Divide the main view for carrying out cutting expression, Figure 12 (a) is the vertical view of one example of rotating vane used in draining pump shown in Figure 11 Figure, Figure 12 (b) is the main view of rotating vane shown in Figure 12 (a).

In the following description, in principle, for the part common with the present application, made using with patent document 2 Symbol identical symbol illustrates.In addition, in the specification of the present application, " upside ", " downside " and " inside ", " outside " etc. Term, be to illustrate to provide mutual relativeness on the basis of positional relationship shown in figure in order to facilitate understanding Term, without the meaning as absolute direction.

The whole draining pump indicated with symbol 1, comprising: motor 10；And motor 10 is installed on by bracket 20 Pump main body 30.Pump main body 30 is made of plastics, comprising: the shell 40 of upper opening；And the upper opening of covering shell 40 The cover 32.Shell 40 includes the suction inlet 42 of tubulose, and the suction inlet 42 of the tubulose has opening portion 43 in lower end；Pump chamber 44, which is formed in the inside of shell 40；And outlet 46, the outlet 46 are prominent to side.The cover 32 and bracket 20 are integrally formed, and the cover 32 sandwiches seal member 34 between shell 40 in a state that connect with shell 40.

In the pump chamber 44 of shell 40, rotating vane 50 is contained, which is rotated using motor 10. Rotating vane 50 includes axle portion 52；The multi-disc extended from the peripheral part of axle portion 52 to radiation direction (is four in illustrative example Piece) flat major diameter blade 60；And it is connect with the lower end edge portion of each major diameter blade 60 and is inserted into the multi-disc of suction inlet 42 The flat path blade 54 of (four of number identical as major diameter blade 60).

Axle portion 52 is formed through the through hole 36 in the center of the cover 32 and, the driving of motor 10 prominent to 10 side of motor Axis 12 is inserted and fixed to hole 53, the hole 53 along axle portion 52 central axis and be arranged.Water blocking circle is installed in the upper surface of axle portion 52 Plate 14 sprays even if sluicing from the through hole 36 of the cover 32, which is also prevented from sluicing and disperses to 10 side of motor.

The lower end edge portion of each major diameter blade 60 is formed as to internal side diameter and the cone cell that tilts down, each lower end edge portion, benefit There is the discoid endless member 62 of opening portion 63 with center and connect.In addition, being set between adjacent major diameter blade 60,60 There is auxiliary blade 68 (being four in the illustrative example of Figure 12 (a)), auxiliary blade 68 erects setting from endless member 62, utilizes The auxiliary blade 68 and major diameter blade 60 and the lift that can ensure that pump.The lateral border of each major diameter blade 60 and each auxiliary blade 68 Portion is connected using annular wall member 64.The position of the upper end edge portion of annular wall member 64 is than major diameter blade 60 and auxiliary blade The position of 68 upper end edge portion is low.

Using rotating vane 50 configured as described, is confused by the rotation of major diameter blade 60 and contained and generated out of sluice Bubble water flow, swimmingly flowed to outlet 46 due to crossing annular wall member 64, the bottom of bubble and the cover 32 The conflict in face 35 is mitigated, it can be expected that the effect of noise decrease.In addition, using this structure, when draining pump 1 stops, by Annular wall member 64 is knocked in the water of the pump chamber 44 from outlet 46 back to shell 40, passes through the buffering to annular wall member 64 And gradually spread, therefore, also it can be expected that the effect that the noise as caused by return water is reduced.

In this way, present applicant has been applied and has been disclosed special in relation to the structure that can reduce the noise from draining pump Benefit.

In patent document 1, the water repellent sound of the draining pump of air conditioner is equipped on realization is reduced to project.Rotating vane With axle portion, what the output shaft of motor was inserted in axle portion has bottom outlet.The major diameter leaf of the plate extended from axle portion to radiation direction Piece, peripheral side are connect with cylindric endless member.For the rotating vane of embodiment, the upper end of endless member is formed as Thinner wall section, and connect by interconnecting piece with disk shaped part.

Patent document 2 is further improved rotating vane shown in patent document 1.In patent document 2, for arranging The rotating vane of water pump includes the major diameter blade of multi-disc plate, axle portion of the major diameter blade from the output axis connection with motor Extend to radiation direction；The path blade of multi-disc plate, the path blade are connect with the lower end edge portion of major diameter blade；And auxiliary Blade, the auxiliary blade are located between adjacent major diameter blade.In the periphery of major diameter blade and auxiliary blade, equipped with blade is stirred Water flow towards blade outside be oriented to stage portion.Blade rear is flowed into due to can inhibit to sluice using these stage portions Therefore space can inhibit vibration and noise improving discharge ability.

Patent document 1: Japanese Patent Laid-Open 2006-29214 bulletin

Patent document 2: Japanese Patent Laid-Open 2013-64396 bulletin

In the draining pump of above-mentioned each patent document, the certain effect for draining pump quietness can be confirmed.In particular, ought be again When invention described in secondary verifying patent document 2, sufficiently obtain because being provided as effect brought by the stage portion of guide part.And And the present application to be to have as premised on the stage portion of guide part, and pursues further improved technology.

As described in patent document 2, formed on rotating vane 50 in upside end edge portion and outside end edge portion when verifying again It is then a kind of upside in major diameter blade 60 and auxiliary blade 68 respectively as shown in FIG. 6 and 7 when having the invention of stage portion Edge (71 and 73) and outside end edge portion (81 and 83) are equipped with the structure of step-like guide part (72,74 and 82,84).At this point, Major diameter blade 60 and the agitation of auxiliary blade 68 sluice and generate water flow, but will utilize major diameter blade 60 and auxiliary blade 68 at this time Rotation give as described below to stir the face of sluicing as " water repellent face ".That is, major diameter blade 60 forms water repellent face 110, upside End edge portion water repellent face 75 and outside end edge portion water repellent face 85, auxiliary blade 68 formed water repellent face 111, upper end edge portion water repellent face 76 and Outside edge water repellent face 86.

It is driven using the rotation of rotating vane 50, upper sluicing is drawn by path blade 54, and sluiced by major diameter blade 60 and auxiliary Blade 68 is helped to assign further centrifugal force, sluicing is crossed cyclic annular flat surface 164 and is discharged from outlet 46.At this point, passing through The water repellent face 110 of major diameter blade 60 and the water repellent face 111 of auxiliary blade 68 carry out water repellent and generate opposite flowing water Fa1 (Fig. 7).? In Fig. 7, flowing water Fa1, Fa2 indicated by an arrow, indicate relative to rotating vane 50 each water repellent face and utilize its rotation and by The inflow direction (incidence angle) and flow velocity of the opposite water of agitation.Also, the stage portion 72 of major diameter blade 60 and auxiliary blade 68, 74 play the role of making to sluice splashing and being directed to top foreign side.That is, as shown in flowing water F (chain-dotted line of Fig. 7 (a)) that The stage portion 72,74 of sample, major diameter blade 60 and auxiliary blade 68 plays the role of the top for being directed to rotating vane 50 that sluices. In addition, stage portion 82,84 is formed in the outside end edge portion 81,83 of major diameter blade 60 and auxiliary blade 68.As a result, stage portion 82, 84 play the role of sluicing being directed to the diameter of rotating vane 50 outward.

In this way, the synergistic effect of the stage portion 72,74,82 and 84 using major diameter blade 60 and auxiliary blade 68, water flow is just Expansion ground flowing upwards, the state in the liquid-gas boundary face to sluice as a result, becomes from original state is expanded into dome outward The state of shape becomes the degree for being hung on the outboard end of major diameter blade, and therefore, water flow difficultly flows into next major diameter blade or auxiliary The space of the upstream of blade can reduce the vibration generated by bubble mixed flow and noise.

Using the above structure, although obtaining comparable effect in terms of muting function, in the invention of patent document 2 In, due to water repellent face (the water repellent face 110 of major diameter blade 60 and the auxiliary lobe of rotating vane (major diameter blade 60 and auxiliary blade 68) Stage portion (72,82 and 74,84) of the water repellent face of piece 68 111) and as guide part water repellent face (aftermentioned 75,85 and 76, 86) the opposite flowing water incidence angle between is different, and therefore, water flow can generate turbulent flow, the air of surrounding mixed flow, gas as bubble Bubble generates rupture, thus generates vibration and noise slightly sometimes.

Summary of the invention

Problems to be solved by the invention

The present invention is made into view of the above problems, it is intended that provide a kind of draining pump, by by rotating vane Water repellent face and stage portion (guide part) water repellent face between opposite flowing water incident angle be made into it is equal, to inhibit water flow Turbulent flow and the mixed flow for preventing bubble and water flow obtain quietness when further operating.

Means for solving the problems

To achieve the goals above, draining pump of the invention is that the draining pump contains rotating vane, which exists The characteristics of lower end is equipped with suction inlet and is supported to rotate freely in the shell that side is equipped with outlet, the draining pump exists In the rotating vane includes the radial path blade of multi-disc；And it is continuous and formation more with the top of the path blade Piece major diameter blade is formed with upside end edge portion water repellent face or outside end edge portion in the water repellent surface side of the major diameter blade step-likely Water repellent face, also, the rotating vane be constructed so as to collide the incidence angle of the flowing water in the water repellent face of the major diameter blade with The incidence angle for colliding the flowing water in the upside end edge portion water repellent face or outside end edge portion water repellent face is equal.

In addition, draining pump of the invention, its main feature is that, in the water repellent surface side of the major diameter blade, it is formed with step-likely Upside end edge portion water repellent face and outside end edge portion water repellent face.

In addition, draining pump of the invention, its main feature is that, it is formed in the institute of the water repellent surface side of the major diameter blade step-likely Upside end edge portion water repellent face is stated, is made of multiple water repellent faces on circumferencial direction.

In addition, draining pump of the invention, its main feature is that, by the water repellent face of the major diameter blade and upside end edge portion water repellent face Or outside end edge portion water repellent face be formed to have as defined in curvature and continuous curved surface.

The effect of invention

Using draining pump of the invention, the water that major diameter blade is transferred to becomes opposite behind the water repellent face for bumping against rotating vane Upside end edge portion water repellent face and outside end edge portion water repellent face are directed to respect to water flow in rotating vane, it can be by flowing water to this The incident direction in upside end edge portion water repellent face and outside end edge portion water repellent face is made into the entering to the water repellent face of rotating vane with flowing water The roughly the same angle of firing angle.The opposite water flow of the front and back for the guide part of rotating vane formed step-likely just becomes as a result, Uniformly, the generation of turbulent flow is reduced, the mixed flow of bubble and water flow is inhibited, and the generation of noise can be further suppressed.In addition, at this point, And by the water repellent face of major diameter blade and upside end edge portion water repellent face or outside end edge portion water repellent face by with defined curvature Continuous curved surface is formed, and the corner band of blade is round as a result, by inhibiting the removing of water flow, to can inhibit the generation of bubble And the generation of noise is further decreased, it can be achieved that opposite water flow more evenly.

Detailed description of the invention

Fig. 1 is the perspective view for indicating the structure of rotating vane used in the draining pump of the 1st embodiment of the invention.

Fig. 2 is the top view of rotating vane shown in FIG. 1.

Fig. 3 is the main view of rotating vane shown in FIG. 1.

Fig. 4 is the bottom view of rotating vane shown in FIG. 1.

Fig. 5 is only the enlarged plan view of a piece of major diameter blade, for illustrating that the draining pump of the 1st embodiment of the invention is used Rotating vane major diameter blade detailed construction.

Fig. 6 is will be as the draining pump with the rotating vane for being formed with guide part of the premise of the present application and this Shen It please invent the perspective view maked a comparison description.

Fig. 7 is only the enlarged drawing of a piece of major diameter blade, for illustrating that having for the premise as the present application is formed with The detailed construction of the major diameter blade of rotating vane used in the draining pump of the rotating vane of guide part.

Fig. 8 is the rotating vane for having guide part to the formation of the premise as the present application and the 1st embodiment of the invention In draining pump used in rotating vane the explanatory diagram that is compared of water flow.

Fig. 9 is only the enlarged plan view of a piece of major diameter blade, for illustrating the draining pump in the 2nd embodiment of the present application The detailed construction of the major diameter blade of used rotating vane.

Figure 10 is to each frequency band between rotating vane used in the draining pump in previous example and the 1st embodiment The curve graph that the size of noise (sound pressure level) is compared.

Figure 11 is the sketch structure figure for indicating previous one example of draining pump.

Figure 12 is the diagram for indicating rotating vane used in previous draining pump, and Figure 12 (a) is top view, Figure 12 (b) It is main view.

Figure 13 is the vertical view of the structure of rotating vane used in the draining pump that indicates in the 3rd embodiment of the present application Figure.

Figure 14 is the solid of the structure of rotating vane used in the draining pump that indicates in the 3rd embodiment of the present application Figure.

Figure 15 is the main portion of the structure of rotating vane used in the draining pump that indicates in the 3rd embodiment of the present application Divide cross-sectional view, Figure 15 (a) is the cross-sectional view in the face A-A in Figure 13, and Figure 15 (b) is the cross-sectional view in the face B-B in Figure 14.

Symbol description

10 motor

12 drive shafts

40 shells

42 suction inlets

46 outlets

52 axle portions

54 path blades

60 major diameter blades

62 endless members

68 auxiliary blades

50 rotating vanes

72,82 stage portions (guide part) (major diameter blade)

75,75A, 75B, 76 upside end edge portion water repellent faces

74,84 stage portions (guide part) (auxiliary blade)

85,86 outside end edge portion water repellent face

110, the water repellent face 110A, 110B (major diameter blade)

111 water repellent faces (auxiliary blade)

164 cyclic annular flat surfaces

Specific embodiment

In the following, according to Figure of description, to illustrate the embodiment of draining pump of the invention.Fig. 1 to Fig. 5 and Fig. 8 (b), figure 9, Figure 13 to Figure 15 indicates the embodiment of the present invention.In addition, Figure 11 and Figure 12 indicates the structure of the rotating vane of previous example, figure 6, Fig. 7 and Fig. 8 (a) indicates the structure of the rotating vane with guide part as premise of the present invention.In the following description, right Common part, puts on identical symbol between previous rotating vane or rotating vane with guide part.

(the 1st embodiment)

Fig. 1 to Fig. 5 is the diagram of the 1st embodiment of rotating vane used in the draining pump that indicates in the present invention, and Fig. 1 is Indicate the perspective view of rotating vane entirety, Fig. 2 is the top view of rotating vane shown in FIG. 1, and Fig. 3 is pivoting leaf shown in FIG. 1 The main view of piece, Fig. 4 are the bottom views of rotating vane shown in FIG. 1, and Fig. 5 is a piece of major diameter blade indicated in rotating vane The top view of detailed construction.In the explanation of the embodiment of the present invention, for as premise of the present invention with guide part The common structure of previous rotating vane shown in rotating vane (Fig. 6 and Fig. 7) puts on identical symbol, omits detailed again Explanation.

The rotating vane 50 of draining pump 1 shown in Fig. 1 be equipped with multi-disc that the sluicing in drain pan is drained with it is small The a sequence of major diameter blade 60 of diameter blade 54, the major diameter blade 60 are formed with water repellent face 110 in its direction of rotation front surface, the water repellent Face 110 is used to make to sluice and crosses the cyclic annular flat surface 164 of discoid endless member 62 and transfer to and sluice, in major diameter blade 60 The upside end edge portion 71 of edge is formed with stage portion 72, and end edge portion 81 is equipped with stage portion 82 on the outside.It is used as a result, from step Portion 72 is formed with upside end edge portion water repellent face 75A, 75B to the wall surface that upside edge 71 erects.In addition, as from stage portion 82 wall surfaces that 81 direction of end edge portion erects outward and be formed with outside end edge portion water repellent face 85.In this 1st embodiment, formed There are upside end edge portion water repellent face 75A, the 75B being made of discontinuous two faces.The upside end edge portion water repellent face 75A, 75B's Detailed construction and function are as be described hereinafter.

In addition, being not only major diameter blade 60, and in auxiliary blade 68, the table before direction of rotation in the 1st embodiment Face is formed with water repellent face 111, and end edge portion 73 is formed with stage portion 74 on the upside of this, and end edge portion 83 is formed with stage portion on the outside 84.In addition, upside end edge portion water repellent face 76 is formed with as the wall surface erected from stage portion 74 to upside edge 73, as Outside end edge portion water repellent face 86 is formed with from the wall surface that end edge portion 83 erects outward of stage portion 84.

In the 1st embodiment, stage portion 72,74 crosses over the upside end edge portion of each major diameter blade 60 and each auxiliary blade 68 71, it is formed to 73 whole length.Stage portion 72,74, which plays, as a result, makes the water flow to sluice splash and be directed to upwards The effect of the top foreign side of each major diameter blade 60 and each auxiliary blade 68.In addition, stage portion 82,84 across each major diameter blade 60 and Formed to the whole length of the outside end edge portion 81,83 of each auxiliary blade 68.Stage portion 82,84 plays the water for making to sluice as a result, Flow to the effect that foreign side splashes and is directed to the foreign side of each major diameter blade 60 and each auxiliary blade 68.Hereinafter, for the originally the 1st Embodiment, although illustrating related major diameter blade 60, it goes without saying that it is auxiliary blade 68 that same structure is also applicable Structure.

Fig. 5 is to indicate that the detailed construction of a piece of major diameter blade 60 of rotating vane shown in FIG. 1 50 of the 1st embodiment is put Big top view.In the past, rotating vane 50 usually made major diameter blade 60 and auxiliary blade 68 in view of its manufacturing process and durability With respective thickness form rotating vane 50, and its center portion constitutes are as follows: from the rotation center as axle portion 52 The center line X1 of mandrel O starting passes through the center portion (Figure 12, Fig. 7 (b) and Fig. 8 (a)).Upside end edge portion 71 and platform as a result, Rank portion 72 substantially can be formed in equal in width radial plate thickness (t1, t2) (Fig. 5 and Fig. 7 of the outside end edge portion of rotating vane 60 (b)).That is, the relationship of " the plate thickness t1 of stage portion 72 " ≈ " the plate thickness t2 of upside end edge portion 71 " is made into, as a result, generally by major diameter The center portion of blade 60 and auxiliary blade 68 is constituted are as follows: from the center that the central axis O of the rotation center as axle portion 52 is originated Line X1 passes through the major diameter blade 60 and the center portion of auxiliary blade 68.

When making the rotation of rotating vane 50 so sluice to transfer to, then sluices and drawn using path blade 54, further In the water repellent face of major diameter blade 60 110, sluicing is applied centrifugal force and becomes water flow, and water flow crosses discoid endless member 62 Cyclic annular flat surface 164 and be pushed to the diameter of rotating vane 50 outward.In addition, in this 1st embodiment, by discontinuous two A upside end edge portion water repellent face 75A, 75B are respectively formed as the water repellent face 110 relative to major diameter blade 60 and with defined angles Inclination, as a result, relative to the incident angle in the plane of the opposite flowing water Fb1 in water repellent face 110, and relative to upside end edge portion group Incident angle in the plane of the opposite flowing water Fb2 of the water surface 75A, 75B is configured to roughly the same (Fig. 5 and Fig. 8 (b)).

Here, with Fig. 7 (a), Fig. 7 (b) and Fig. 8 (a), Fig. 8 (b), to having as premise of the invention shown in fig. 6 What the water flow between major diameter blade 60 in the major diameter blade 60 of the rotating vane 50 of guide part and the 1st embodiment of the invention generated Difference makes a comparison description.Fig. 7 (a) and Fig. 7 (b) indicates the flowing water to sluice relative to as this using arrow Fa1, Fa2 The water repellent face 110 of the major diameter blade 60 with guide part of the premise of invention and the incidence angle side in upside end edge portion water repellent face 75 To.In addition, Fig. 8 (a) and (b) are for illustrating that the water flow of the major diameter blade 60 with guide part as premise of the invention produces Different diagrams between the water flow generation of major diameter blade 60 in 1st embodiment raw and of the invention.

Firstly, considering in shown in Fig. 7 (a) such opposite flowing water F (chain-dotted line), using as shown in Fig. 7 (b) The case where being formed parallel to the major diameter blade 60 in water repellent face 110 and upside end edge portion water repellent face 75.Here, whole water flow is used Chain-dotted line is expressed as flowing water F, and the water flow for colliding the water repellent face 110 of major diameter blade 60 is expressed as flowing water Fa1, collides major diameter leaf The water flow in the upside end edge portion water repellent face 75 of piece 60 is expressed as flowing water Fa2.Referring now to entering for each flowing water Fa1, Fa2 in this case Firing angle is studied in detail.

Major diameter blade 60 is rotated centered on the center O of axis 52, and therefore, the flowing water F being thus struck becomes along Fig. 8 Dotted line shown in circle-shaped flowed.Then, as shown in Fig. 8 (a), due to upside end edge portion water repellent face 75 be in comprising with In the plane including center line X1 centered on the center O of axis 52, therefore upside ora terminalis of the flowing water Fa2 relative to major diameter blade 60 The flowing water incident angle β in portion water repellent face 75 is substantially 90 degree.But stream of the flowing water Fa1 relative to the water repellent face 110 of major diameter blade 60 Although water incident angle α is relative to being approximate right angle, phase comprising the plane including the center line X3 centered on the center O of axis 52 Pair sluicing become flowing water incident angle α relative to the incidence angle in the water repellent face 110 of major diameter blade 60, become and enter with flowing water Fa2 Firing angle β different incidence angles.Specifically, to relative in including the upside end edge portion water repellent on the face including center line X1 Face 75 and the flowing water incident angle α in water repellent face 110 outstanding and the flowing water incident angle β phase to upside end edge portion water repellent face 75 forwards Than more acute angle.That is, being in the relationship of " the flowing water incident angle α of flowing water Fa1 " < " the flowing water incident angle β of flowing water Fa2 ".At this point, The flowing water F in the stage portion 72 of major diameter blade 60 is dialed out to, when further being transferred to upwards from upside end edge portion 71, by Incidence angle in from flowing water F to water repellent face is different, and therefore, the vector of flowing water F generates variation and generates turbulent flow, and mixed flow has gas as a result, It steeps and becomes a reason for generating noise.

Premised on the function and effect of such guide part (stage portion), illustrate that the present invention the 1st is implemented using Fig. 8 (b) The structure and its function and effect of major diameter blade 60 in example.The major diameter blade 60 of 1st embodiment shown in Fig. 8 (b), plate thickness Center is configured to, and comes comprising on the face including the center line X1 centered on the center O of axis 52.The reason for this is that rotating vane 50 Rotation uniformity.Also, in order not to generate the turbulent flow of flowing water F shown in Fig. 8 (a), in the 1st embodiment of the invention, it is It realizes the relationship of " the flowing water incident angle α of flowing water Fa1 " ≈ " the flowing water incident angle β of flowing water Fa2 ", and makes upside end edge portion water repellent (75A, 75B) is slightly tilted relative to the angle of flowing water F in face 75.In this way, by being formed relative to water repellent face 110 with predetermined angular Inclined upside end edge portion water repellent face 75 (75A, 75B), so as to by the opposite flowing water incidence angle relative to water repellent face 110 Fb1 and opposite flowing water incidence angle Fb2 relative to upside end edge portion water repellent face 75 (75A, 75B) are made roughly the same incidence Angle.The flowing water F for the sluicing transferred to as a result, from stage portion 72 to upside edge 71 will not disorder, and its flowing can be maintained Direction, can inhibit the generation of turbulent flow and bubble mixed flow can be reduced in the water flow the phenomenon that.

Figure 10 is to the draining pump for having used the rotating vane in the 1st embodiment of the invention and to have used previous pivoting leaf The noise (sound pressure level) of the draining pump of piece be compared after curve graph.Horizontal axis is revolving speed in curve graph, and the longitudinal axis is noise level, empty Line indicates that previous draining pump, solid line indicate draining pump of the invention.As shown in this graph, it is thus identified that such situation: Low-frequency noise region and high-frequency noise region, significantly present noise reduction.

In addition, existing in the 1st embodiment of the invention relative to comprising the center line X1 centered on the center O of axis 52 The quantity (that is, being two of 75A and 75B in the 1st embodiment) in interior face and the upside end edge portion water repellent face 75 that constitutes and The inclined angle in upside end edge portion water repellent face 75 etc. is needed according to each rotating vane (major diameter blade 60 and auxiliary blade 68) Radial dimension and thickness and suitably changed.For example, the major diameter as shown in the top view of Fig. 2, in the 1st embodiment of the invention The upside end edge portion water repellent face 75 of blade 60 forms two sections (75A, 75B) towards circumferential near the central portion of major diameter blade 60, The reason is that using upside end edge portion water repellent face 75 as same plane each upside end edge portion water repellent face 75A, 75B In the case that ground is formed, with from periphery towards central portion, and the water repellent face more than major diameter blade 60 shown in Fig. 8 (b) is needed 110 plate thickness is needed to form as 60 entirety of major diameter blade as with comparable thickness.In this way, rotating vane is acted, and Also bad from the viewpoint of the manufacturing cost.Then, even if tilting upside end edge portion water repellent face 75, by the way that upside end edge portion is dialled The water surface 75 is formed with suitably being divided (75A, 75B), to can inhibit the whole thickness of rotating vane 60.

In addition, in order to cater to entering for the opposite flowing water Fb1 in the water repellent face 110 for rushing at major diameter blade 60 shown in Fig. 8 (b) Firing angle (flowing water incident angle α) will rush at incidence angle (the flowing water incidence angle of the opposite flowing water Fb2 of upside end edge portion water repellent face 75A It α) is made into and is equal to it, then since the water repellent face 110 of major diameter blade 60 is set to such state: being with the center O of axis 52 The center line X1 at center is compared, and only highlights the amount of the plate thickness t1 of stage portion 72, therefore, in upside end edge portion water repellent face 75A It needs to be set to such state: compared with the center line X2 centered on the center O by axis 52, only highlighting (the water repellent face 110 t1 Overhang).Forming upside end edge portion water repellent face 75A in a manner of meeting the relationship, upside end edge portion is thus determined The inclination angle in water repellent face 75 (75A, 75B).In this case, as long as upside end edge portion water repellent face 75 (75A, 75B) is formed in On the face parallel with the center line X2 centered on the center O of axis 52, then upside end edge portion water repellent face 75 (75A, 75B) is just matched It sets in the position parallel and t1 that only advanced forwards with center line X2.Upside end edge portion water repellent face 75A, 75B are being formed two It is also identical for upside end edge portion water repellent face 75B in the case where section.In general, upside end edge portion water repellent face 75A, 75B distinguish Be formed as parallel face, in addition, one or more snippets upside ora terminalis can also be suitably formed according to the diameter dimension of rotating vane 50 Portion water repellent face.

The inclination of upside end edge portion water repellent face 75A, the on the outside also company as an inclined surface of end edge portion water repellent face 85 It is formed continuously.In addition, for the upside end edge portion water repellent face 76 and outside end edge portion water repellent face 86 of auxiliary blade 68, also by same Imagination and form inclined surface.

(the 2nd embodiment)

Fig. 9 is to give a piece of major diameter blade 60 of the 2nd embodiment of rotating vane 50 used in draining pump 1 of the invention With a part of amplified top view.In the 1st embodiment, in order to make incidence angle and stream of the flowing water Fb1 relative to water repellent face 110 Water Fb2 is consistent relative to the incidence angle in upside end edge portion water repellent face 75, and is formed obliquely upside relative to water repellent face 110 Edge water repellent face 75A and 75B.But in the 2nd embodiment, on the contrary, in order to make flowing water Fb2 relative to upside end edge portion water repellent The incidence angle in face 75 is consistent relative to the incidence angle in water repellent face 110 with flowing water Fb1, and is configured to upside end edge portion water repellent face 75 Including comprising the center line X1 centered on the rotation center O of axis 52 and the center of rotation axis comprising rotating vane 50 On face similarly, constitute water repellent face 110 by multiple water repellent face 110A, 110B, and obliquely constitute each water repellent face 110A, 110B.And at this point, each water repellent face 110A, 110B are configured to, it is present in comprising the center line centered on the center O of axis 52 On the face of X4 or X5.It is identical as the 1st embodiment as a result, it can be in water repellent face 110A, B and upside end edge portion water repellent face 75 by phase Pair flowing water incidence angle be made into it is identical, can get effect identical with the 1st embodiment.In the case where 2 embodiment, by In water repellent face 110A, B and upside end edge portion water repellent face 75 be in comprising centered on the center O of axis 52 center line (X1, X4, X5 on face), therefore the incidence angle of opposite flowing water Fc1 and Fc2 be may be configured as approximate right angle on arbitrary face.

(the 3rd embodiment)

Figure 13 is the top view for indicating the 3rd embodiment of rotating vane 50 used in draining pump of the invention.Such as Figure 13 It is shown, be located at 60 peripheral side of major diameter blade as the guide part 82 of stage portion, peripheral end portion 81 and be located at outside auxiliary blade 68 Side is formed to have regulation curvature as the guide part 84 of stage portion, peripheral end portion 83 and with circular state.That is, the Rotating vane 50 shown in 3 embodiments, from water repellent face 110,111 through guide part 82,84 the major diameter leaf for the peripheral end portion 81,83 that arrives The surface of piece 60 and auxiliary blade 68 forms gently compared with embodiment 1 and embodiment 2.

Figure 15 (a) is major diameter blade 60 shown in Figure 13, is the cross-sectional view in the face A-A.With above-mentioned guide part 82 and outer rim End 81 in the same manner, for from water repellent face 110 through stage portion 72 and reach upside end edge portion 71 shape, it may have regulation curvature R1, R2 and gently formed.Although being not particularly illustrated, it is also the same that there is regulation curvature R1, R2 for auxiliary blade 68 And it is gently formed.In addition, though the bending of regulation curvature is not formed in the upside end edge portion 71 in major diameter blade 60, but at this Part can also equally have regulation curvature R3 and gently be formed.

Due to making corner (edge) with circle using this structure, thus thus can inhibit because of water flow caused by corner Removing.Therefore, it can inhibit the bubble formation generated due to removing flowing caused by water repellent face, guide part, the peripheral end portion, it can Reduce noise.

In addition, from Figure 13 it can be appreciated that the boundary 75C of upside end edge portion water repellent face 75A and 75B when looking down, along annulus The circular open 63 of part 62 and formed.That is, boundary 75C is formed as the state being overlapped with circular open portion 63 when looking down.In addition, Boundary 75C and upside end edge portion water repellent face 75B has regulation curvature and is formed as continuous surface.It can gently change as a result, By the incidence angle of the upside end edge portion water repellent face 75A water flow transferred near the 75C of boundary.

Figure 15 (b) is the cross-sectional view of the path blade 54 in the face B-B of rotating vane 50 shown in Figure 14.Path blade 54 Also there is regulation curvature identically as above-mentioned major diameter blade 60 and auxiliary blade 68 and gently formed, thus can inhibit because of water flow Removing and the bubble formation that generates, noise can be reduced.

In addition, various modifications can be made the present invention is not limited to above-mentioned each embodiment.For example, the the above-mentioned 1st, the 2nd and It is premised on guide part is arranged in major diameter blade and this two side of auxiliary blade, however, it is possible to only in major diameter leaf in 3 embodiments Piece setting implements guide part of the invention.In addition to this, to make flowing water relative to the incidence in the water repellent face 110 of major diameter blade 60 Angle and flowing water essentially become roughly the same incidence relative to the incidence angle in the upside end edge portion water repellent face 75 of major diameter blade 60 It angle can be to the various embodiments described above reality in the range of not departing from the present inventive concept for making any incident angle with required angle tilt Various modifications are applied, this is self-evident.

Claims (5)

1. a kind of draining pump, which contains rotating vane, and the rotating vane is in lower end equipped with suction inlet and in side It is supported to rotate freely in shell equipped with outlet, which is characterized in that,

The rotating vane includes the radial path blade of multi-disc；And it is continuous and formation with the top of the path blade Multi-disc major diameter blade is formed with upside end edge portion water repellent face or outside ora terminalis in the water repellent surface side of the major diameter blade step-likely Portion water repellent face, also, the rotating vane is constructed so as to collide the incidence angle of the flowing water in the water repellent face of the major diameter blade It is equal with the incidence angle of flowing water for colliding the upside end edge portion water repellent face or outside end edge portion water repellent face.

2. draining pump as described in claim 1, which is characterized in that in the water repellent surface side of the major diameter blade, step-like landform At end edge portion water repellent face on the upside of having and outside end edge portion water repellent face.

3. draining pump as described in claim 1, which is characterized in that be formed in the water repellent surface side of the major diameter blade step-likely Upside end edge portion water repellent face, be made of multiple water repellent faces on circumferencial direction.

4. draining pump as claimed in claim 2, which is characterized in that be formed in the water repellent surface side of the major diameter blade step-likely Upside end edge portion water repellent face, be made of multiple water repellent faces on circumferencial direction.

5. draining pump according to any one of claims 1 to 4, which is characterized in that by the water repellent face of the major diameter blade with Upside end edge portion water repellent face or outside end edge portion water repellent face be formed to have as defined in curvature and continuous curved surface.