CN105464995A - Drain pump - Google Patents
Drain pump Download PDFInfo
- Publication number
- CN105464995A CN105464995A CN201510527936.4A CN201510527936A CN105464995A CN 105464995 A CN105464995 A CN 105464995A CN 201510527936 A CN201510527936 A CN 201510527936A CN 105464995 A CN105464995 A CN 105464995A
- Authority
- CN
- China
- Prior art keywords
- blade
- drying face
- edge
- large footpath
- drying
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 75
- 238000001035 drying Methods 0.000 claims description 154
- 239000011435 rock Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009987 spinning Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 238000010276 construction Methods 0.000 description 6
- 239000003570 air Substances 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a drain pump capable of further improving running muting property; a spinning impeller (50) of the drain pump comprises the following elements: major diameter impellers (60) having a plurality of slab-shape water peddling planes (110)extending from a shaft portion (52) connected with a motor output shaft to radial directions; a plurality of slab-shape miner diameter impellers (54) connected with the lower rim of the major diameter impeller (60); auxiliary impellers (68) having water peddling surfaces (111) and arranged between adjacent major diameter impellers (60); the top rim and outer rim of the major diameter impeller (60) and auxiliary impellers (68) are provided with step portions (72, 74,82, 84) used for guiding impeller paddled water on the upper side and outer side of the impeller; top rim water paddling planes (75, 76) are formed in a regulated angle relative to the water paddling planes (110, 111); the water flow has approximately same enter angle relative to the water paddling planes (110, 111) and the top rim water paddling planes (75, 76) and the outer rim water paddling planes (85, 86).
Description
Technical field
The present invention relates to a kind of draining pump, this draining pump is by the sluicing in drain pan to outdoor discharge, and drain pan is received in the water of the indoor heat converter condensation of air conditioner.
Background technique
In the past, in the air conditioner imbedding the form in indoor ceiling, be equipped with drain pan, this drain pan is received in the sluicing of the surface condensation of the indoor heat converter of air conditioner.In order to by the sluicing in this drain pan to outdoor discharge, and use draining pump (sluicing pump).
Below, claimant's association of the application has been applied for and the draining pump (patent documentation 2) that uses of disclosed air conditioner and being described the present application.Figure 11 is a plan view part for the draining pump be described as prior art in patent documentation 2 being carried out to cutting expression, Figure 12 (a) is the plan view of rotation blade one example that the draining pump shown in Figure 11 uses, and Figure 12 (b) is the plan view of the rotation blade shown in Figure 12 (a).
In the following description, in principle, for the part common with the present application, the symbol identical with the symbol that patent documentation 2 uses is used to illustrate.In addition, in present specification, the term in " upside ", " downside " and " inner side ", " outside " etc., is to facilitate understanding of the description with the term that the position relationship shown in scheming specifies mutual relativeness for benchmark, does not have the implication as absolute direction.
The overall draining pump represented with symbol 1, has: motor 10; And the pump main body 30 of motor 10 is installed on by bracket 20.Pump main body 30 is made of plastics, and has: the housing 40 of upper opening; And the cover cap 32 of the upper opening of covering shell 40.Housing 40 has: the suction port 42 of tubulose, and the suction port 42 of this tubulose has opening portion 43 in underpart; Pump chamber 44, this pump chamber 44 is formed at the inside of housing 40; And exhaust port 46, this exhaust port 46 is outstanding to side.Cover cap 32 and bracket 20 form, and cover cap 32 between housing 40, sandwich sealed member 34 state under be connected with housing 40.
In the pump chamber 44 of housing 40, contain rotation blade 50, this rotation blade 50 utilizes motor 10 to rotate.Rotation blade 50 has: axle portion 52; The flat large footpath blade 60 of the multi-disc (being four illustrative example) extended from the peripheral part in axle portion 52 to radiation direction; And to connect with the lower end edge portion of each large footpath blade 60 and to insert the flat path blade 54 of the multi-disc (with four of the identical number of large footpath blade 60) of suction port 42.
Axle portion 52 is formed through through hole 36 in cover cap 32 central authorities and outstanding to motor 10 side, and the live axle 12 of motor 10 inserts and is fixed on hole 53, this hole 53 along axle portion 52 central shaft and arrange.Be provided with dash plectane 14 at the upper surface in axle portion 52, spray even if sluice from the through hole 36 of cover cap 32, this dash plectane 14 also prevents from sluicing and disperses to motor 10 side.
The lower end edge portion of each large footpath blade 60, is formed as the taper downward-sloping to internal side diameter, this each lower end edge portion, utilizes central authorities have the discoid ring-shaped member 62 of opening portion 63 and connect.In addition, auxiliary blade 68 (in the illustrative example of Figure 12 (a) being four) is provided with between adjacent large footpath blade 60,60, auxiliary blade 68 erects setting from ring-shaped member 62, utilizes this auxiliary blade 68 and large footpath blade 60 and can guarantee lift of pump.The edge, outside of each large footpath blade 60 and each auxiliary blade 68, utilizes annular wall member 64 and connects.The position of the upper end edge portion of annular wall member 64 is lower than the position of the upper end edge portion of large footpath blade 60 and auxiliary blade 68.
Adopt above-mentioned such rotation blade 50 formed, confused by the rotation of large footpath blade 60 and contain the current from the interior bubble produced that sluices, flow to exhaust port 46 swimmingly owing to crossing annular wall member 64, therefore, bubble with relaxed the conflicting of bottom surface 35 of cover cap 32, the effect of noise decrease can be expected.In addition, utilize this structure, when draining pump 1 stops, because the water of the pump chamber 44 turning back to housing 40 from exhaust port 46 knocks annular wall member 64, spread gradually by the buffering to annular wall member 64, therefore, also can expect the effect that the noise caused by backwater is reduced.
So, the claimant of the application has applied for and has disclosed the patent of the structure about reducing the noise from draining pump.
In patent documentation 1, be reduced to problem with what realize the drying sound of the draining pump being equipped on air conditioner.Rotation blade has axle portion, and what the output shaft of motor was inserted in axle portion has bottom outlet.The large footpath blade of the tabular extended from axle portion to radiation direction, its outer circumferential side is connected with cylindric ring-shaped member.For the rotation blade of embodiment, the upper end portion of ring-shaped member is formed as thinner wall section, and is connected with disk shaped part by joint.
Rotation blade shown in patent documentation 2 pairs of patent documentations 1 has done further improvement.In patent documentation 2, the rotation blade for draining pump has: the large footpath blade of multi-disc tabular, and this large footpath blade extends from the axle portion be connected with the output shaft of motor to radiation direction; The path blade of multi-disc tabular, this path blade is connected with the lower end edge portion of large footpath blade; And auxiliary blade, this auxiliary blade is located between adjacent large footpath blade.In the periphery of large footpath blade and auxiliary blade, be provided with the stepped part that the current that stirred by blade lead towards the outside of blade.Can suppress owing to utilizing these stepped part to sluice and flow into the space at blade rear, therefore, even if improve discharge ability also can suppress vibration & noise.
Patent documentation 1: Japanese Patent Laid-Open 2006-29214 publication
Patent documentation 2: Japanese Patent Laid-Open 2013-64396 publication
In the draining pump of above-mentioned each patent documentation, the certain effect for draining pump quietness can be confirmed.Especially, when again verifying the invention described in patent documentation 2, the effect that abundant acquisition brings because of the stepped part being provided as guide portion.Further, the present application to have premised on the stepped part of guide portion, and pursues further improvement opportunity.
As described in patent documentation 2, when again verify on rotation blade 50, be formed with the invention of stepped part in edge, upside and outboard end edge time, then as shown in FIG. 6 and 7, be a kind of structure being provided with step-like guide portion (72,74 and 82,84) in large footpath blade 60 and other edge, upside of auxiliary blade 68 points (71 and 73) and outboard end edge (81 and 83).Now, large footpath blade 60 and auxiliary blade 68 stir and sluice and produce current, but the face rotation of the large footpath blade 60 utilized now and auxiliary blade 68 being stirred sluicing illustrates as follows as " drying face ".That is, large footpath blade 60 forms drying face 110, drying face, edge, upside 75 and drying face, outboard end edge 85, and auxiliary blade 68 forms drying face 111, upper end edge portion drying face 76 and drying face, edge, outside 86.
Utilize the rotary actuation of rotation blade 50, draw upper sluicing by path blade 54, and sluicing gives further centrifugal force by large footpath blade 60 and auxiliary blade 68, sluice and cross ring-type tabular surface 164 and be discharged from exhaust port 46.Now, carry out drying by the drying face 110 of large footpath blade 60 and the drying face 111 of auxiliary blade 68 and produce relative flowing water Fa1 (Fig. 7).In the figure 7, flowing water Fa1, Fa2 of representing with arrow, represent each drying face relative to rotation blade 50 and utilize it to rotate and by the inflow direction (reference angle) of relative water that stirs and flow velocity.Further, the stepped part 72,74 of large footpath blade 60 and auxiliary blade 68 plays and sluicing is splash and the effect being directed to top foreign side.That is, as shown in flowing water F (dot and dash line of Fig. 7 (a)), the stepped part 72,74 of large footpath blade 60 and auxiliary blade 68 plays the effect being directed to the top of rotation blade 50 that sluices.In addition, stepped part 82,84 is formed at the outboard end edge 81,83 of large footpath blade 60 and auxiliary blade 68.Thus, stepped part 82,84 plays the footpath effect being outward directed to rotation blade 50 that sluices.
So, utilize the synergistic effect of the stepped part 72,74,82 and 84 of large footpath blade 60 and auxiliary blade 68, current flow with just expanding upward, thus, the state in liquid-gas boundary face sluiced becomes from original state and expand into dome-type state laterally, becomes the degree of the outboard end being hung on large footpath blade, therefore, current are difficult to the space of the upstream flowing into next large footpath blade or auxiliary blade, can reduce the vibration & noise produced because of bubble mixed flow.
Utilize above structure, although obtain suitable effect in muting function, but in the invention of patent documentation 2, due to the drying face (the drying face 110 of large footpath blade 60 and the drying face 111 of auxiliary blade 68) of rotation blade (large footpath blade 60 and auxiliary blade 68) and the stepped part (72 as guide portion, 82 and 74, 84) drying face (described later 75, 85 and 76, 86) the relative flowing water reference angle between is different, therefore, current can produce turbulent flow, ambient air becomes bubble and mixed flow, bubble produces and breaks, sometimes vibration & noise is a little produced thus.
Summary of the invention
Invent problem to be solved
The present invention makes in view of the above problems, its object is to, a kind of draining pump is provided, by the relative flowing water incident angle between the drying face of rotation blade and the drying face of stepped part (guide portion) is made equal, thus suppress the turbulent flow of current and prevent the mixed flow of bubble and current, obtain quietness when further operating.
For solving the means of problem
To achieve these goals, draining pump of the present invention is, this draining pump contains rotation blade, this rotation blade be provided with suction port in underpart and be provided with at sidepiece be supported in the housing of exhaust port rotatable, the feature of this draining pump is, described rotation blade has: the radial path blade of multi-disc; And the multi-disc large footpath blade to be formed continuously with the top of this path blade, drying face, edge, upside or drying face, outboard end edge is formed at the drying face side stage rock bench of described large footpath blade, further, described rotation blade is constructed so that the reference angle of the flowing water in the drying face colliding described large footpath blade is equal with the reference angle of the flowing water colliding drying face, edge, described upside or drying face, outboard end edge.
In addition, draining pump of the present invention, is characterized in, in the side, drying face of described large footpath blade, is formed with drying face, edge, upside and drying face, outboard end edge step-likely.
In addition, draining pump of the present invention, is characterized in, makes the reference angle of the flowing water colliding drying face, edge, described upside or drying face, outboard end edge identical with the reference angle of flowing water in the drying face colliding described large footpath blade.
In addition, draining pump of the present invention, is characterized in, is formed at the drying face, edge, described upside of the side, drying face of described large footpath blade step-likely, is made up of multiple drying faces circumferentially.
In addition, draining pump of the present invention, is characterized in, is formed as the drying face of described large footpath blade and drying face, edge, upside or drying face, outboard end edge having the curvature of regulation and continuous print curved surface.
The effect of invention
Adopt draining pump of the present invention, the water that large footpath blade is transferred to, after bumping against the drying face of rotation blade, become the relative current relative to rotation blade and be directed to drying face, edge, upside and drying face, outboard end edge, the incident direction of flowing water to this drying face, edge, upside and drying face, outboard end edge can be made the angle roughly the same with the reference angle of flowing water to the drying face of rotation blade.Thus, the relative current of the front and back of the guide portion formed of rotation blade just become even step-likely, reduce the generation of turbulent flow, suppress the mixed flow of bubble and current, and can the generation of restraint speckle further.In addition, now, by by the drying face of large footpath blade and drying face, edge, upside or drying face, outboard end edge by there is the curvature of regulation and continuous print Surface forming, thus, the bight band of blade is circular, by suppressing the stripping of current, thus the generation of bubble can be suppressed to go forward side by side the generation of a step-down low noise, can realize evenly relative current.
Accompanying drawing explanation
Fig. 1 is the stereogram of the structure representing the rotation blade that the draining pump of the present invention the 1st embodiment uses.
Fig. 2 is the plan view of the rotation blade shown in Fig. 1.
Fig. 3 is the plan view of the rotation blade shown in Fig. 1.
Fig. 4 is the worm's eye view of the rotation blade shown in Fig. 1.
Fig. 5 is only the amplification plan view of a slice large footpath blade, the detailed construction of the large footpath blade of the rotation blade that the draining pump for illustration of the present invention the 1st embodiment uses.
The draining pump with the rotation blade being formed with guide portion of the prerequisite as the present application and the present application are compared the stereogram illustrated by Fig. 6.
Fig. 7 is only the enlarged view of a slice large footpath blade, the detailed construction of the large footpath blade of the rotation blade that the draining pump with the rotation blade being formed with guide portion for illustration of the prerequisite as the present application uses.
Fig. 8 is the explanatory drawing compared the current of the rotation blade that the draining pump in the rotation blade being formed with guide portion of the prerequisite as the present application and the present invention the 1st embodiment uses.
Fig. 9 is only the amplification plan view of a slice large footpath blade, the detailed construction of the large footpath blade of the rotation blade used for illustration of the draining pump in the present application the 2nd embodiment.
Figure 10 is the plotted curve that the size of the noise (sound pressure level) of each frequency band between the rotation blade that uses the draining pump in previous example and the 1st embodiment compares.
Figure 11 is the Sketch figure of draining pump one example represented in the past.
Figure 12 is the diagram representing the rotation blade that draining pump in the past uses, and Figure 12 (a) is plan view, and Figure 12 (b) is plan view.
Figure 13 is the plan view of the structure representing the rotation blade that the draining pump in the present application the 3rd embodiment uses.
Figure 14 is the stereogram of the structure representing the rotation blade that the draining pump in the present application the 3rd embodiment uses.
Figure 15 is the major component sectional view of the structure representing the rotation blade that the draining pump in the present application the 3rd embodiment uses, and Figure 15 (a) is the sectional view in the A-A face in Figure 13, and Figure 15 (b) is the sectional view in the B-B face in Figure 14.
Symbol description
10 motor
12 live axles
40 housings
42 suction ports
46 exhaust ports
52 axle portions
54 path blades
60 large footpath blades
62 ring-shaped members
68 auxiliary blades
50 rotation blades
72,82 stepped part (guide portion) (large footpath blade)
75,75A, 75B, 76 drying faces, edge, upside
74,84 stepped part (guide portion) (auxiliary blade)
85,86 drying faces, outboard end edge
110,110A, 110B drying face (large footpath blade)
111 drying faces (auxiliary blade)
164 ring-type tabular surfaces
Embodiment
Below, according to Figure of description, the embodiment of draining pump of the present invention is described.Fig. 1 to Fig. 5 and Fig. 8 (b), Fig. 9, Figure 13 to Figure 15 represent embodiments of the invention.In addition, Figure 11 and Figure 12 represents the structure of the rotation blade of previous example, and Fig. 6, Fig. 7 and Fig. 8 (a) represent the structure with the rotation blade of guide portion as prerequisite of the present invention.In the following description, for rotation blade in the past or have part common between the rotation blade of guide portion, put on identical symbol.
(the 1st embodiment)
Fig. 1 to Fig. 5 is the diagram of the 1st embodiment of the rotation blade that the draining pump represented in the present invention uses, Fig. 1 is the stereogram representing rotation blade entirety, Fig. 2 is the plan view of the rotation blade shown in Fig. 1, Fig. 3 is the plan view of the rotation blade shown in Fig. 1, Fig. 4 is the worm's eye view of the rotation blade shown in Fig. 1, and Fig. 5 is the plan view of the detailed construction of a slice represented in rotation blade large footpath blade.In the explanation of embodiments of the invention, for the structure common with the rotation blade in the past shown in the rotation blade (Fig. 6 and Fig. 7) with guide portion as prerequisite of the present invention, put on identical symbol, omit and again describe in detail.
The multi-disc and the path blade 54 large footpath blade 60 in succession that the sluicing in drain pan are carried out to draining is provided with at the rotation blade 50 of the draining pump 1 shown in Fig. 1, this large footpath blade 60 is formed with drying face 110 at its sense of rotation front surface, sluicing is transferred to for making sluicing cross the ring-type tabular surface 164 of discoid ring-shaped member 62 in this drying face 110, be formed with stepped part 72 in the edge, upside 71 of the edge of large footpath blade 60, and be provided with stepped part 82 in outboard end edge 81.Thus, drying face, edge, upside 75A, 75B is formed with as the wall erected to edge, upside 71 from stepped part 72.In addition, as from stepped part 82 wall that erects of end edge portion 81 direction and be formed with drying face, outboard end edge 85 laterally.In this 1st embodiment, be formed with drying face, edge, upside 75A, 75B of being made up of discontinuous two faces.The detailed construction of this drying face, edge, upside 75A, 75B and function are as aftermentioned.
In addition, in the 1st embodiment, be not only large footpath blade 60, and in auxiliary blade 68, be formed with drying face 111 at sense of rotation front surface, be formed with stepped part 74 in this edge, upside 73, be formed with stepped part 84 in outboard end edge 83.In addition, be formed with drying face, edge, upside 76 as the wall erected to edge, upside 73 from stepped part 74, as from stepped part 84 wall that erects of end edge portion 83 and be formed with drying face, outboard end edge 86 laterally.
In the 1st embodiment, the whole length ground that stepped part 72,74 crosses over the edge, upside 71,73 of each large footpath blade 60 and each auxiliary blade 68 is formed.Thus, stepped part 72,74 plays and makes to splash above the current direction of sluicing and be directed to the effect of the top foreign side of each large footpath blade 60 and each auxiliary blade 68.In addition, stepped part 82,84 crosses over the whole length ground formation of the outboard end edge 81,83 of each large footpath blade 60 and each auxiliary blade 68.Thus, stepped part 82,84 plays and makes the current direction foreign side of sluicing splash and be directed to the effect of the foreign side of each large footpath blade 60 and each auxiliary blade 68.Below, for this 1st embodiment, although relevant large footpath blade 60 is described, self-evident, same structure is also applicable is the structure of auxiliary blade 68.
Fig. 5 is the amplification plan view of the detailed construction of a slice large footpath blade 60 of the rotation blade 50 shown in Fig. 1 representing the 1st embodiment.In the past, rotation blade 50 is in view of its manufacturing process and durability, usually make large footpath blade 60 and auxiliary blade 68 form rotation blade 50 with having respective thickness, and its middle body is configured to: the center line X1 initial from the central shaft O of the rotating center as axle portion 52 passes through this middle body (Figure 12, Fig. 7 (b) and Fig. 8 (a)).Thus, edge, upside 71 and stepped part 72 can form thickness of slab (t1, t2) (Fig. 5 and Fig. 7 (b)) of the radial direction of the outboard end edge at rotation blade 60 with roughly waiting width.Namely, make the relation of " the thickness of slab t1 of stepped part 72 " ≈ " the thickness of slab t2 of edge, upside 71 ", thus, generally the middle body of large footpath blade 60 and auxiliary blade 68 is configured to: the middle body passing through this large footpath blade 60 and auxiliary blade 68 from the center line X1 that the central shaft O of the rotating center as axle portion 52 is initial.
Rotate to transfer to sluicing when making rotation blade 50 so, then sluicing utilizes path blade 54 to be drawn, further in the drying face 110 of large footpath blade 60, sluicing is applied in centrifugal force and becomes current, current cross the ring-type tabular surface 164 of discoid ring-shaped member 62 and the footpath being pushed to rotation blade 50 outward.In addition, in this 1st embodiment, drying face, edge, discontinuous two upsides 75A, 75B are formed as respectively drying face 110 relative to large footpath blade 60 and with the angular slope of regulation, thus, relative to the incident angle in the plane of the relative flowing water Fb1 in drying face 110, be configured to roughly the same (Fig. 5 and Fig. 8 (b)) with the incident angle in the plane of the relative flowing water Fb2 relative to drying face, edge, upside 75A, 75B.
Here, with Fig. 7 (a), Fig. 7 (b) and Fig. 8 (a), Fig. 8 (b), explanation is compared to the difference that the current between the large footpath blade 60 in the large footpath blade 60 of the rotation blade 50 with guide portion as prerequisite of the present invention shown in Fig. 6 and the present invention the 1st embodiment produce.Fig. 7 (a) and Fig. 7 (b) utilizes arrow Fa1, Fa2 to represent the flowing water of sluicing relative to having the drying face 110 of the large footpath blade 60 of guide portion and the reference angle direction in drying face, edge, upside 75 as prerequisite of the present invention.In addition, Fig. 8 (a) and (b) be for illustration of as prerequisite of the present invention have the large footpath blade 60 of guide portion current produce and the present invention the 1st embodiment in large footpath blade 60 current produce between different diagrams.
First, consider in relative flowing water F (dot and dash line) such Fig. 7 (a) Suo Shi, use the situation of the large footpath blade 60 in the drying face 110 that is formed with abreast as shown in Fig. 7 (b) and drying face, edge, upside 75.Here, overall current dot and dash line is expressed as flowing water F, and the current colliding the drying face 110 of large footpath blade 60 are expressed as flowing water Fa1, and the current colliding the drying face, edge, upside 75 of large footpath blade 60 are expressed as flowing water Fa2.Reference angle now for each flowing water Fa1, Fa2 in this situation studies in great detail.
Large footpath blade 60 rotates centered by the center O of axle 52, and therefore, to become shown in the dotted line along Fig. 8 circle-shaped flows for the flowing water F be struck thus.So, as shown in Fig. 8 (a), because drying face, edge, upside 75 is in the plane of the center line X1 comprised centered by the center O of axle 52, therefore flowing water Fa2 is roughly 90 degree relative to the flowing water reference angle β in the drying face, edge, upside 75 of large footpath blade 60.But, although flowing water Fa1 is approximate right angle relative to the flowing water reference angle α in the drying face 110 of large footpath blade 60 relative to the plane of the center line X3 comprised centered by the center O of axle 52, but relative sluicing becomes flowing water reference angle α relative to the reference angle in the drying face 110 of large footpath blade 60, becomes the reference angle different from the reference angle β of flowing water Fa2.Specifically, to the flowing water reference angle α in the drying face 110 forwards outstanding relative to the drying face, edge, upside 75 be on the face comprising center line X1 more acute angle compared with the flowing water reference angle β to drying face, edge, upside 75.That is, the relation of " the flowing water reference angle α of flowing water Fa1 " < " the flowing water reference angle β of flowing water Fa2 " is in.Now, by the flowing water F dialed out in the stepped part 72 of large footpath blade 60, when being transferred to upward from edge, upside 71 further, because flowing water F is different to the reference angle in drying face, therefore, the vector of flowing water F changes and produces turbulent flow, and thus, mixed flow has bubble and becomes the reason producing noise.
Premised on the action effect of such guide portion (stepped part), utilize Fig. 8 (b) to illustrate structure and its action effect of the large footpath blade 60 in the present invention the 1st embodiment.The large footpath blade 60 of the 1st embodiment shown in Fig. 8 (b), the center of its thickness of slab is configured to, and comes on the face of the center line X1 comprised centered by the center O of axle 52.Its reason is the rotation uniformity of rotation blade 50.And, in order to not produce the turbulent flow of the flowing water F shown in Fig. 8 (a), in the 1st embodiment of the present invention, in order to realize the relation of " the flowing water reference angle α of flowing water Fa1 " ≈ " the flowing water reference angle β of flowing water Fa2 ", and drying face, edge, upside 75 (75A, 75B) is tilted a little relative to the angle of flowing water F.So, by forming the drying face, edge, upside 75 (75A, 75B) tilted with predetermined angular relative to drying face 110, thus the relative flowing water reference angle Fb1 relative to drying face 110 can be made roughly the same reference angle with the relative flowing water reference angle Fb2 relative to drying face, edge, upside 75 (75A, 75B).Thus, can not be disorderly by the flowing water F of the sluicing transferred to from stepped part 72 to edge, upside 71, and the direction of its flowing can be maintained, the generation of turbulent flow can be suppressed and bubble mixed flow can be reduced in the phenomenon of current.
Figure 10 is the plotted curve after comparing with the noise (sound pressure level) of the draining pump employing rotation blade in the past the draining pump of the rotation blade employed in the present invention the 1st embodiment.In plotted curve, transverse axis is rotating speed, and the longitudinal axis is noise level, and dotted line represents draining pump in the past, and solid line represents draining pump of the present invention.As shown in this graph, confirm such situation: in low-frequency noise region and high-frequency noise region, significantly present noise reduction.
In addition, in the 1st embodiment of the present invention, relative to the face of the center line X1 comprised centered by the center O of axle 52 and the quantity in the drying face, edge, upside 75 formed (namely, be two of 75A and 75B in the 1st embodiment) and angle etc. that this drying face, edge, upside 75 is tilted, need according to the radial dimension of each rotation blade (large footpath blade 60 and auxiliary blade 68) and thickness and suitably change.Such as, as shown in the plan view of Fig. 2, the drying face, edge, upside 75 of the large footpath blade 60 in the present invention the 1st embodiment, formed two sections (75A, 75B) towards circumference near the central part of large footpath blade 60, its reason is, when using each drying face, edge, upside 75A, 75B with drying face, edge, a upside 75 as same plane formed, along with from periphery towards central part, and need the thickness of slab in the drying face 110 more than the large footpath blade 60 shown in Fig. 8 (b), need to be formed as that there is suitable thickness as large footpath blade 60 entirety.Like this, to rotation blade action, and not good viewed from the viewpoint of manufacture cost yet.So, even if make drying face, edge, upside 75 tilt, by being formed with suitably splitting (75A, 75B) in drying face, edge, upside 75, thus the thickness of rotation blade 60 entirety can be suppressed.
In addition, in order to cater to the reference angle (flowing water reference angle α) of the relative flowing water Fb1 in the drying face 110 of large footpath blade 60 that rushes at shown in Fig. 8 (b), the reference angle (flowing water reference angle α) rushing at the relative flowing water Fb2 of drying face, edge, upside 75A is made equal with it, then because the drying face 110 of large footpath blade 60 is set to such state: compared with the center line X1 centered by the center O of axle 52, only highlight the amount of the thickness of slab t1 of stepped part 72, therefore, in drying face, edge, upside, 75A also needs to be set to such state: compared with the center line X2 centered by the center O of axle 52, only highlight t1 (overhang in drying face 110).By forming drying face, edge, upside 75A in the mode meeting this relation, determine the tilt angle in drying face, edge, upside 75 (75A, 75B) thus.In this case, as long as be formed in drying face, edge, upside 75 (75A, 75B) on the face parallel with the center line X2 centered by the center O of axle 52, then edge, upside drying face 75 (75A, 75B) is just configured in and only forwards the advanced position of t1 parallel with center line X2.When drying face, edge, upside 75A, 75B are formed two sections, be also identical for drying face, edge, upside 75B.Usually, drying face, edge, upside 75A, 75B are formed as parallel face respectively, in addition, according to the diameter dimension of rotation blade 50, also suitably can form one or more snippets drying face, edge, upside.
The inclination of this drying face, edge, upside 75A, is also formed as a plane of inclination continuously in drying face, outboard end edge 85.In addition, for drying face, edge, upside 76 and the drying face, outboard end edge 86 of auxiliary blade 68, also plane of inclination is formed by same imagination.
(the 2nd embodiment)
Fig. 9 is the plan view after a slice large footpath blade 60 of the 2nd embodiment of the rotation blade 50 used by draining pump 1 of the present invention gives part amplification.In the 1st embodiment, in order to make flowing water Fb1 consistent relative to the reference angle in drying face, edge, upside 75 with flowing water Fb2 relative to the reference angle in drying face 110, and be formed obliquely drying face, edge, upside 75A and 75B relative to drying face 110.But, in the 2nd embodiment, on the contrary, in order to make flowing water Fb2 consistent relative to the reference angle in drying face 110 with flowing water Fb1 relative to the reference angle in drying face, edge, upside 75, in the same manner as being configured to drying face, edge, upside 75 and being positioned at the center line X1 that comprises centered by the rotating center O of axle 52 and comprising on the face of the rotating center axis of rotation blade 50, form drying face 110 by multiple drying face 110A, 110B, and form each drying face 110A, 110B obliquely.And now, each drying face 110A, 110B are configured to, and are present on the face of center line X4 or X5 comprised centered by the center O of axle 52.Thus, identical with the 1st embodiment, with drying face, edge, upside 75, the reference angle of relative flowing water can be made identical at drying face 110A, B, the effect identical with the 1st embodiment can be obtained.When the 2nd embodiment, because drying face 110A, B and drying face, edge, upside 75 are on the face of the center line (X1, X4, X5) comprised centered by the center O of axle 52, the reference angle that therefore all can be configured to relative flowing water Fc1 and Fc2 on arbitrary face becomes approximate right angle.
(the 3rd embodiment)
Figure 13 is the plan view of the 3rd embodiment representing the rotation blade 50 that draining pump of the present invention uses.As shown in figure 13, be located at the guide portion 82 as stepped part of large footpath blade 60 outer circumferential side, outer rim end 81 and be located at the guide portion 84 as stepped part of auxiliary blade 68 outer circumferential side, outer rim end 83 is formed as having regulation curvature and with the state of circle.That is, the rotation blade 50 shown in the 3rd embodiment, from drying face 110,111 through guide portion 82,84 the large footpath blade 60 of the outer rim end 81,83 that arrives and the surface of auxiliary blade 68, formed gently compared with embodiment 1 and embodiment 2.
Figure 15 (a) is the large footpath blade 60 shown in Figure 13, is the sectional view in A-A face.Identically with above-mentioned guide portion 82 and outer rim end 81, for the shape arriving edge, upside 71 from drying face 110 through stepped part 72, also there is regulation curvature R1, R2 and gently formed.Although be not particularly illustrated, for auxiliary blade 68, there is regulation curvature R1, R2 too and gently formed.In addition, although be not formed with the bending of regulation curvature in the edge, upside 71 of large footpath blade 60, in this part, also can have regulation curvature R3 equally and gently be formed.
Owing to utilizing this structure to make bight (edge) with circle, the stripping of the current produced because of bight thus can be suppressed thus.Therefore, the stripping flowing produced because of drying face, guide portion, outer rim end and the bubble formation produced can be suppressed, can noise be reduced.
In addition, can understand from Figure 13, the border 75C of drying face, edge, upside 75A and 75B when overlooking, along ring-shaped member 62 circular open 63 and formed.That is, border 75C is formed as the state that overlaps with circular open portion 63 when overlooking.In addition, border 75C and drying face, edge, upside 75B has regulation curvature and is formed as continuous print surface.Thus, the reference angle of the current transferred to by drying face, edge, upside 75A near the 75C of border can gently be changed.
Figure 15 (b) is the sectional view of the path blade 54 in the B-B face of the rotation blade 50 shown in Figure 14.Path blade 54 also has regulation curvature and is gently formed identically with auxiliary blade 68 with above-mentioned large footpath blade 60, can suppress the bubble formation produced because of the stripping of current thus, can reduce noise.
In addition, the present invention is not limited to above-mentioned each embodiment, can do various distortion.Such as, in above-mentioned 1st, the 2nd and the 3rd embodiment, arrange premised on guide portion by large footpath blade and this two side of auxiliary blade, but, also only can arrange at large footpath blade and implement guide portion of the present invention.In addition, roughly the same reference angle is become in fact relative to the reference angle in the drying face 110 of large footpath blade 60 and flowing water relative to the reference angle in the drying face, edge, upside 75 of large footpath blade 60 for making flowing water, make any incident angle with in the scope of the present inventive concept of required angular slope not departing from, can implement various distortion to the various embodiments described above, this is self-evident.
Claims (7)
1. a draining pump, this draining pump contains rotation blade, and this rotation blade is provided with suction port in underpart and is provided with at sidepiece and is supported to rotatable in the housing of exhaust port, and the feature of this draining pump is,
Described rotation blade has: the radial path blade of multi-disc; And the multi-disc large footpath blade to be formed continuously with the top of this path blade, drying face, edge, upside or drying face, outboard end edge is formed at the drying face side stage rock bench of described large footpath blade, further, described rotation blade is constructed so that the reference angle of the flowing water in the drying face colliding described large footpath blade is equal with the reference angle of the flowing water colliding drying face, edge, described upside or drying face, outboard end edge.
2. draining pump as claimed in claim 1, is characterized in that, in the side, drying face of described large footpath blade, be formed with drying face, edge, upside and drying face, outboard end edge step-likely.
3. draining pump as claimed in claim 1, is characterized in that, makes the reference angle of the flowing water colliding drying face, edge, described upside or drying face, outboard end edge identical with the reference angle of flowing water in the drying face colliding described large footpath blade.
4. draining pump as claimed in claim 2, is characterized in that, makes the reference angle of the flowing water colliding drying face, edge, described upside or drying face, outboard end edge identical with the reference angle of flowing water in the drying face colliding described large footpath blade.
5. draining pump as claimed in claim 3, is characterized in that, be formed at the drying face, edge, described upside of the side, drying face of described large footpath blade step-likely, be made up of multiple drying faces circumferentially.
6. draining pump as claimed in claim 4, is characterized in that, be formed at the drying face, edge, described upside of the side, drying face of described large footpath blade step-likely, be made up of multiple drying faces circumferentially.
7. the draining pump according to any one of claim 1 to 6, is characterized in that, is formed as the drying face of described large footpath blade and drying face, edge, upside or drying face, outboard end edge having the curvature of regulation and continuous print curved surface.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014196101 | 2014-09-26 | ||
| JP2014-196101 | 2014-09-26 | ||
| JP2015-014008 | 2015-01-28 | ||
| JP2015014008A JP6427428B2 (en) | 2014-09-26 | 2015-01-28 | Drainage pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464995A true CN105464995A (en) | 2016-04-06 |
| CN105464995B CN105464995B (en) | 2019-01-11 |
Family
ID=55603059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510527936.4A Active CN105464995B (en) | 2014-09-26 | 2015-08-25 | draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464995B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208169A (en) * | 1977-02-26 | 1980-06-17 | Klein, Schanzlin & Becker Aktiengesellschaft | Impeller for centrifugal pumps |
| JPH0242193A (en) * | 1988-04-11 | 1990-02-13 | A Ahlstroem Oy | Method and device for separating gas by pump from medium |
| CN1263996A (en) * | 1999-02-19 | 2000-08-23 | 株式会社不二工机 | Drainage pump |
| CN1383476A (en) * | 2000-06-21 | 2002-12-04 | 株式会社鹭宫制作所 | Drainage pump for condensated water |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| JP2013245569A (en) * | 2012-05-23 | 2013-12-09 | Denso Corp | Pump |
-
2015
- 2015-08-25 CN CN201510527936.4A patent/CN105464995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208169A (en) * | 1977-02-26 | 1980-06-17 | Klein, Schanzlin & Becker Aktiengesellschaft | Impeller for centrifugal pumps |
| JPH0242193A (en) * | 1988-04-11 | 1990-02-13 | A Ahlstroem Oy | Method and device for separating gas by pump from medium |
| CN1263996A (en) * | 1999-02-19 | 2000-08-23 | 株式会社不二工机 | Drainage pump |
| CN1383476A (en) * | 2000-06-21 | 2002-12-04 | 株式会社鹭宫制作所 | Drainage pump for condensated water |
| CN102996462A (en) * | 2011-08-30 | 2013-03-27 | 株式会社不二工机 | Drain pump |
| JP2013245569A (en) * | 2012-05-23 | 2013-12-09 | Denso Corp | Pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464995B (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9970443B2 (en) | Fan frame and fan assembly with silencing structures | |
| US9180772B2 (en) | Fan assembly for vehicles | |
| US20050226721A1 (en) | Centrifugal blower | |
| US10119553B2 (en) | Centrifugal fan | |
| US9726181B2 (en) | Centrifugal pump | |
| US10598190B2 (en) | Centrifugal blower | |
| US9551354B2 (en) | Regenerative-type fluid machinery having a guide vane on a channel wall | |
| KR20150056465A (en) | Centrifugal fan | |
| KR101545278B1 (en) | Axial or mixed flow pump | |
| JP2009133267A (en) | Impeller of compressor | |
| JPWO2019087385A1 (en) | Centrifugal compressor and turbocharger equipped with this centrifugal compressor | |
| CN110088482A (en) | Multiple-wing fan | |
| US9523370B2 (en) | Blower with curved blades | |
| CN105518307A (en) | Centrifugal rotor | |
| JP6706248B2 (en) | Fluid machine with diffuser | |
| CN101861464B (en) | Method of setting performance characteristic of pump and method of manufacturing diffuser vane | |
| KR102526206B1 (en) | Drain pump | |
| CN105464995A (en) | Drain pump | |
| US20130330182A1 (en) | Centrifugal blower | |
| CN102216624B (en) | Degassing device for liquid-filled chambers with rotating components | |
| CN105697384A (en) | Water discharge pump | |
| US20180283396A1 (en) | Centrifugal air blower | |
| JP6487179B2 (en) | Blower | |
| JP6427428B2 (en) | Drainage pump | |
| JP5263043B2 (en) | Centrifugal compressor suction casing and design method of centrifugal compressor suction casing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |