CN106870445A - Pump rotor and possesses the draining pump of the pump rotor - Google Patents

Abstract

The present invention provides a kind of pump rotor and possesses the draining pump of the pump rotor, and the amount of work of drive motor can not be significantly changed in draining pump and the delivery flow of draining pump is improved.Chamfering (12S) is formed with predetermined angle (θ) in the way of the lowest end forms thin-walled portion in the corner in the stirring face (12b1) of a side of the bottom of the projection (12b) of the axle portion (12B) of pump rotor (12).

Description

Pump rotor and possesses the draining pump of the pump rotor

Technical field

The present invention relates to pump rotor and possesses the draining pump of the pump rotor.

Background technology

Air-conditioning equipment is provided with the draining pump that water for will being stranded in the disk that uncovers etc. is discharged to the outside.For example, such as the institute of patent document 1 Show, draining pump is configured to, as formant, including：Lower casing (is referred to as pump chamber shell) in patent document 1, and it is under central portion End has the suction line for forming suction inlet；Rotor (is referred to as impeller) in patent document 1, and it can rotationally be configured at lower casing In rotor receiving room；Upper casing (is referred to as lid shell) in patent document 1, and it together forms rotor receiving room with the inner peripheral portion of lower casing (pump chamber)；And drive motor, it is supported in upper casing and rotor is driven.

Rotor is in the lower section of axle fitting portion with the four pieces of tabulars for being configured in suction inlet and intersecting in crosswise each other Vanelets.

The inner peripheral portion of lower casing is formed as being extended in funnel-form centered on suction inlet.A part for the lower end of the suction inlet is matched somebody with somebody It is placed in the underwater uncovered in disk.Thus, in the case where rotor is arranged into operating state, by the vanelets in suction inlet Rotation, the water uncovered in disk etc. rise along suction inlet, and are conducted into rotor receiving room based on centrifugal force.

In addition, in order to reduce the noise caused by the stirring of drain water, for example, also as shown in patent document 2, it is proposed that A kind of draining pump,, relative to direction of rotation, the chamfered section of formation arc-shaped is (in reference to patent document 2 on path blade for it Fig. 8 and Figure 15).This chamfered section has the radius of substantially equal with the thickness of path blade.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2012-149529 publications

Patent document 2：Japanese Unexamined Patent Publication 2000-213770 publications

The content of the invention

Invent problem to be solved

The air-conditioning equipment designed with being suitable for the predetermined certain specification of predetermined destination is being arranged on destination In the case of, when the environment temperature of destination is reduced to minimum temperature in the specification limit of air-conditioning equipment, drive motor Output declines, so as to the drain discharge reduction that there is a problem of draining pump.In addition, the controller switching equipment of destination is present being used to driving The situation that the service voltage of motor significantly changes and reduces.In this case, with the reduction of service voltage, drive motor Output declines, so as to the drain discharge reduction that there is a problem of draining pump.

As the drain discharge that suppression causes by change or the variation of service voltage similar to above-mentioned environment temperature Reduction countermeasure, be also contemplated in advance in draining pump use amount of work than larger drive motor.

But, amount of work increases than the price of larger drive motor as amount of work increases, therefore, from draining pump Manufacturing cost from the aspect of, this is unadvisable.

Consider the problem points of the above, it is an object of the invention to provide a kind of pump rotor and possess the draining of the pump rotor Pump, the draining pump can not significantly change the amount of work of drive motor and improve the delivery flow of draining pump.

Scheme for solving problem

In order to realize above-mentioned purpose, pump rotor of the invention is characterised by possessing：Supporting plate, it is between predetermined Every formed for fluid by opening and fluid when being rotated by rotary drive unit to being imported via opening apply Plus multiple stirring sheets of centrifugal force；And axle portion, it forms as one with supporting plate, and with multiple projections, above-mentioned projection point There is not stir face and with radial protrusion for a pair, by stirring face and the bottom of axle portion of the side in a pair of stirring faces The intersecting part of end face, reduce stirring face as by the flowing of fluid from the stripping area in the region of sur-face peeling.

The part that the stirring face of the side in a pair of stirring faces is intersected with the end face of the bottom of axle portion can be had in advance The chamfering at fixed angle of inclination, or the stage portion with predetermined depth.In addition, the stirring face of the side in a pair of stirring faces The part intersected with the end face of the bottom of axle portion can be stepped portion, and the stepped portion has multiple indentations and along having The linear extension at predetermined angle of inclination, or the circular-arc part with predetermined radius of curvature.

Draining pump of the invention is characterised by possessing：Pump case, it has suction inlet and outlet；Supporting plate, it can Rotationally it is configured in the rotor receiving room of pump case, and the fluid formed at predetermined intervals for being imported via suction inlet passes through Opening and apply multiple stirrings of centrifugal force when being rotated by rotary drive unit to the fluid imported via opening Piece；And axle portion, it forms as one with supporting plate, and with multiple projections, above-mentioned projection has a pair of stirring faces simultaneously respectively Extend in suction inlet and with radial protrusion, by stirring face and the bottom of the axle portion of the side in a pair of stirring faces The intersecting part of end face, reduce stirring face as by the flowing of above-mentioned fluid from the stripping area in the region of sur-face peeling.

The part that the stirring face of the side in a pair of stirring faces is intersected with the end face of the bottom of axle portion can be had in advance The chamfering at fixed angle of inclination, or the stage portion with predetermined depth.In addition, the stirring face of the side in a pair of stirring faces The part intersected with the end face of the bottom of axle portion can be stepped portion, and the stepped portion has multiple indentations and along having The linear extension at predetermined angle of inclination, or the circular-arc part with predetermined radius of curvature.

Invention effect

Pump rotor of the invention and possess the draining pump of the rotor, stirred by a pair of the projection of the axle portion of pump rotor The part that the stirring face of the side in noodles served with soy sauce, sesame butter, etc. is intersected with the end face of the bottom of axle portion, reduce stirring face conduct by fluid stream from The stripping area in the region of sur-face peeling, draining pump is improved therefore, it is possible to not change the amount of work of drive motor significantly Delivery flow.

Brief description of the drawings

Fig. 1 is the figure for being indicated the end partial enlargement of an axle portion for example of pump rotor of the invention.

Fig. 2 is a sectional view for the structure of the major part of example for schematically illustrating draining pump of the invention.

Fig. 3 is a stereogram for the outward appearance of example for representing pump rotor of the invention.

Fig. 4 is the partial sectional view of the action specification for the pump rotor shown in Fig. 3.

Fig. 5 is the performance plot of the delivery flow of the action specification for the pump rotor shown in Fig. 3.

Fig. 6 is the partial enlargement for being indicated the major part partial enlargement of another example of pump rotor of the invention Figure.

Fig. 7 is the performance plot of the delivery flow of the action specification for the pump rotor shown in Fig. 6.

Fig. 8 is the partial sectional view of the action specification of another example for pump rotor of the invention.

Fig. 9 is the partial sectional view of the action specification of another example for pump rotor of the invention.

Symbol description

10-lower casing, 10a-suction inlet, 14-upper casing, 12,22,32,42-pump rotor, 12B, 22B, 32B, 42B-axle Portion, 12b, 22b, 32b, 42b-projection, 12S-chamfering, 22S-stage portion, 32S-stepped portion, 42R-circular-arc part.

Specific embodiment

Fig. 2 represents a structure for example of draining pump of the invention.

In fig. 2, draining pump is configured to, and as formant, contains：Lower casing 10, its central portion lower end have formed The suction line of suction inlet 10a；Pump rotor 12, it can be rotationally configured in lower casing 10；Upper casing 14, its inner circumferential with lower casing 10 Portion together forms rotor receiving room；And drive motor 15, it is configured at upper casing 14 and pump rotor 12 is driven.

One end of the suction line of lower casing 10 is for example configured at the disk that uncovers (not shown).Suction line is for example soaked under it Hold the position of approximate number mm or so consistent with the liquid level ML for uncovering the water in disk represented by double dot dash line.It is straight in suction inlet 10a Footpath φ D2 for example set for about 11.5mm, and the diameter phi D1 of the openend 10e of suction inlet 10a for example sets for about 10mm.

The inner peripheral portion of lower casing 10 is formed as being in funnel-form extension centered on suction inlet 10a.In addition, as shown in Fig. 2 The outlet side described later of the upper portion side wall 10US of lower casing 10, extends along the direction orthogonal with the central axis of suction inlet 10a There is outlet 10D.The minor diameter part 10b and large-diameter portion 10c that outlet 10D is connected by the rotor receiving room with lower casing 10 are constituted.

The cylindrical portion formed in the lower end of upper casing 14 is connected via O-ring 18 with the openend of the upper end of lower casing 10. Be formed at the central portion of the flat part 14W of the cylindrical portion of upper casing 14 and with rotor receiving room (hereinafter also referred to as pump chamber) in In the through hole 14a of connection, the output shaft 15S of drive motor 15 and the wheelboss part 22 of pump rotor described later 12 are inserted with. Therefore, pump case is formed by lower casing 10 and upper casing 14.

Drive motor 15 is, for example, platypelloid type DC brushless motors, its top for being supported in upper casing 14.In addition, horse is used in driving Rotating speed up to 15 output shaft 15S is maintained at predetermined maximum (top) speed.Additionally, the output shaft 15S's of drive motor 15 turns Speed can also be controlled according to delivery flow by the control base board for omitting diagram.In addition, though diagram is omitted, but upper casing 14 There is air communication hole in many places.Additionally, drive motor 15 is not limited to the example, or AC motors.Drive motor 15 It for example can also be shaded-pole motor with encoder.Bracket for mounting 16 is provided with the top of drive motor 15.

As shown in figure 3, pump rotor 12 be for example configured to containing：(i=1~n, n are just whole to the projection tab 12ai of multiple string shape Number), it is integrally formed by resin material and is constituted the stirring body for applying centrifugal force to fluid；And the supporting plate of circular cone shape 12A, it has the axle portion 12B in insertion suction inlet 10a and is formed as one with the lower end of projection tab 12ai in lower end.

Supporting plate 12A has the axle portion 12B in the above-mentioned suction inlet 10a of insertion in lower end.Axle portion 12B has four projections Used as vanelets, four projection 12b have the width of about 9mm or so and extend along central axis 12b, and form cross Section.The bottom of axle portion 12B at a distance of suction line lower surface from predetermined distance, e.g., from about 2~3mm or so.

Four projection 12b have identical structure each other, therefore a projection 12b in four projection 12b is said It is bright.As Fig. 1 enlargedly shown in, projection 12b is protruded outward from central axis along radial direction, and for example with 1.5mm's Thickness extends up to reach the surface of supporting plate 12A from the bottom of axle portion 12B.In addition, in a side of the bottom of projection 12b The corner of stirring face 12b1 chamfering is formed with predetermined angle, θ, to cause that the lowest end forms thin-walled portion.Chamfering 12S is from one end of the radial direction of projection 12b to the other end towards the central axial extension of axle portion 12B.Stirring face 12b1 is for example It is the face in the direction opposite with the direction of rotation of axle portion 12B.Chamfering 12S inclines from the position that dimension D a is left at a distance of stirring face 12b1 Tiltedly extend and intersect with stirring face 12b1.As described later, the angle, θ of chamfering 12S is preferably for example set in from angle a degree to angle The scope of f degree.The bottom of the stirring face 12b2 of the opposing party relative with stirring face 12b1 is orthogonal with the lower surface of axle portion 12B. Additionally, the bottom of the stirring face 12b2 of the opposing party can also be carried out similar to the processing for forming thinner wall section.

The hub portion of the output shaft 15S of connection drive motor 15 is configured with the through hole of the central portion of supporting plate 12A Part 22.Wheelboss part 22 is integrally formed on the central axis common with the central axis of axle portion 12B, and above-mentioned with insertion The mode of through hole 14a is protruded.That is, wheelboss part 22 is formed as substantially vertical with the supporting surface of supporting plate 12A.Wheelboss part 22 Periphery by four connecting piece 12R1~12R4 with through hole links.Connecting piece 12R1~12R4 is respectively along its circumference side In four position branches and the end of axle portion 12B is integrally formed in equally spaced.Additionally, in figure 3, not shown connecting piece 12R2、12R3。

For example it is integrally formed with supporting plate 12A by resin material as the projection tab 12ai of stirring sheet, and with rectangle Section.Projection tab 12ai is formed in length and breadth at predetermined intervals around the through hole of supporting plate 12A.In adjacent projection tab 12ai to each other, intercommunicating pore 12C is formed with predetermined position.Additionally, pump rotor can also replace projection tab 12ai, and constitute It is that big footpath blade recorded such as patent document 2, as stirring sheet is set in support plate.

Thus, in the case where drive motor 15 is in operating state, by the direction shown in the arrow in Fig. 4, The centrifugal force produced by pump rotor 12 for rotating in the clockwise direction, in fig. 2, along the direction shown in arrow from suction The fluid of mouth 10a suctions is directed to by the inner peripheral portion of lower casing 10 and the lower end of upper casing 14 via the through hole of pump rotor 12 The space that all portions are formed, i.e. rotor receiving room, and arranged along the direction shown in arrow by minor diameter part 10b and large-diameter portion 10c Go out to outside.

Additionally, being not limited to the example, the direction of rotation of the pump rotor 12 based on drive motor 15 can be clockwise Or counterclockwise in any one direction, the direction of rotation of pump rotor 12 be in and Fig. 4 in arrow shown in direction phase In the case of the counter clockwise direction in anti-direction, above-mentioned chamfering is formed at stirring face 12b2.

In the structure shown here, the rotating speed of pump rotor 12 is being controlled by controlling the rotating speed of the output shaft of drive motor 15 In the case of, liquid-gas boundary face is pressed and centrifugal force by the centrifugal force that the pump rotor 12 in action causes with the head from outlet The balance of the reaction force of the caused inner peripheral portion for coming from lower casing 10 and formed.

Thus, the liquid in rotor receiving room is directed to the inner peripheral portion of lower casing 10 and the lower end of upper casing 14 by centrifugal force Inner peripheral portion, and be discharged to the outside along the path represented by the arrow shown in Fig. 2 by minor diameter part 10b and large-diameter portion 10c.

Fig. 5 represents used as present inventor shown in Fig. 2 for example as draining pump of the invention Individual example, the result verified to the increase effect of the delivery flow of above-mentioned pump rotor 12.

In this experiment, in the state of the lift in draining pump maintains the lift of head pressure (lift) 1000mm or so, While the respectively different above-mentioned pump rotor 12 of the tilt angle theta that chamfering 12S is changed in draining pump, while measuring from draining pump The flow of discharge.

Fig. 5 be the longitudinal axis be delivery flow climbing Q (%), transverse axis for chamfering 12S tilt angle theta (°), pair and chamfering The corresponding each climbing Qp in each angle of inclination of 12S carries out the chart drawn.Additionally, climbing Q refers to, for example, being to θ In angle a~angle l each when the difference of delivery flow Q0 when being 0 (zero) of delivery flow Q1 and θ when being 0 (zero) divided by θ Delivery flow Q0 obtained by value be multiplied by the value after 100.As 100% (benchmark discharge stream when each climbing Qp is using θ=0 ° Amount) and draw.θ is the situation that 0 expression is not provided with chamfering 12S in projection 12b.

It can be seen from the change of the climbing Qp according to the delivery flow in Fig. 5, it is thus identified that tilt angle theta from angle a degree to In the scope of angle f degree, the climbing of delivery flow is more than 110 (%), and in angle c, the climbing of delivery flow rises to The largest of about 121 (%).As one of the reason, it is believed that be, as shown in figure 4, being extracted along the direction shown in arrow in fluid In the case of, as the fluid stream on the chamfering 12S peripheries that will be formed in projection 12b from the stripping area in the region of sur-face peeling PEA becomes smaller due to chamfering 12S, and (effective water flowing is empty in the region that fluid can effectively pass through in suction inlet 10a Between) EPA expand result.Therefore, the amount of work of drive motor 15 is not changed significantly, and can improve the discharge of draining pump Flow.Additionally, in Figure 5, for example, during Da=0.25mm, angle a=5 degree, angle c=15 degree, angle f=30 degree.

In the pump rotor 12 shown in Fig. 3, in the stirring face 12b1 of a side of the bottom of the projection 12b of axle portion 12B Corner is formed with chamfering 12S in the way of the lowest end forms thin-walled portion with predetermined angle, θ, but shown in Fig. 6 In pump rotor 22 as another example of pump rotor, it is changed to be formed with stage portion 22S in the axle portion 22B of pump rotor 22.

In figure 6, pump rotor 22 is for example configured to, and contains：The projection tab of multiple string shape, it is by resin material one landform Into and constitute to fluid apply centrifugal force stirring body；The supporting plate of circular cone shape, it has in insertion suction inlet 10a in lower end Axle portion 22B and formed as one with the lower end of projection tab.

Additionally, the knot of the structure of stirring sheet and supporting plate and the projection tab 12ai and supporting plate 12A of above-mentioned pump rotor 12 Structure is identical, therefore omits its repeat specification.Here, pump rotor can also replace projection tab 12ai and be configured to set patent document Big footpath blade 60 described in 2 is used as stirring sheet.In addition, the knot of the projection tab of other pump rotors 32,42 described later and supporting plate Structure of the structure also with the projection tab 12ai and supporting plate 12A of above-mentioned pump rotor 12 is identical, therefore the description thereof will be omitted.

Axle portion 22B has four projection 22b as vanelets, four projections have the width of about 9mm or so and along Central axis extends, and forms cross section.The bottom of axle portion 22B at a distance of the lower surface of suction line leave it is predetermined away from From for example, about 2~3mm or so.

Four projection 22b have identical structure each other, therefore a projection 22b in four projection 22b is said It is bright.As shown in Fig. 6 amplifies, projection 22b is protruded outward from central axis along radial direction, and for example, with the thickness of 1.5mm Spend the surface for extending up to reach supporting plate from the bottom of axle portion 22B.In addition, the stirring of a side of the bottom of projection 22b The corner of face 22b1 is formed with stage portion 22S in the way of the lowest end forms thin-walled portion.Stage portion 22S is along projection The radial direction of 22b extends towards the central axis of axle portion 22B.Shown in Fig. 7 as be described hereinafter, the platform of the thickness direction of projection 22b The depth W of rank portion 22S is set in the scope from Amm to Cmm.The chi of the central axial direction along projection 22b of stage portion 22S It is very little to be set as such as 1.0mm.

Stirring face 22b1 is, for example, the face in the direction opposite with the direction of rotation of axle portion 22B.It is relative with stirring face 22b1 The bottom of the stirring face 22b2 of the opposing party is orthogonal with the lower surface of axle portion 22B.Additionally, the stirring face 22b2 of the opposing party most under End can also be carried out similar to the processing for forming thinner wall section.Fig. 7 represents that present inventor uses the pump rotor 22 shown in Fig. 6 The result verified to the increase effect of the delivery flow of above-mentioned pump rotor 22.

In this experiment, the lift in draining pump is maintained at the state of the lift of head pressure (lift) 1000mm or so Under, while the depth W that stage portion 22S is changed in draining pump respectively different above-mentioned pump rotor 22, while measuring from draining The flow of pump discharge.

Fig. 7 is the climbing Q (%) that the longitudinal axis is delivery flow, and transverse axis is the depth W of stage portion 22S, pair corresponding with depth W The climbing Qp of each delivery flow carry out the chart drawn.Additionally, W is 0 expression is not provided with stage portion in projection 22b The situation of 22S.

Additionally, climbing Q refers to, for example, to depth W be in depth A~depth C each when delivery flow Q1 and depth After the value obtained by delivery flow Q0 when the difference of delivery flow Q0 when degree W is 0 (zero) is 0 (zero) divided by depth W is multiplied by 100 Value.In addition, being drawn as 100% (benchmark delivery flow) when the climbing of delivery flow is using W=0.

It can be seen from the change of the climbing Qp according to the delivery flow in Fig. 7, it is thus identified that scopes of the depth W in the degree from A to C In, delivery flow is more than 110 (%), and in depth B and C, delivery flow is the largest of about 124 (%).As one of the reason, recognize It is yes, in the case where fluid is extracted, is shelled from surface as the fluid stream on the stage portion 22S peripheries that will be formed in projection 22b From the stripping area in region become smaller due to stage portion 22S, what fluid can effectively pass through in suction inlet 10a The result that region expands.Therefore, the amount of work of drive motor 15 is not changed significantly, and can improve the discharge stream of draining pump Amount.Additionally, in Fig. 7 of the present embodiment, for example, A=0.25mm, B=0.5mm, C=0.75mm.

And, pump rotor is not limited to the example shown in Fig. 1 and Fig. 6, for example, it is also possible to as illustrated in fig. 8, in pump rotor 32 The corner of stirring face 32b1 of a side of bottom of projection 32b of axle portion 32B thin-walled portion is formed with the lowest end Mode forms the stepped portion 32S being made up of thin indentation.

The axle portion 32B of pump rotor 32 has four projection 32b as vanelets, and four projections have about 9mm's or so Width and extend along central axis, and form cross section.Left at a distance of the lower surface of suction line the bottom of axle portion 32B Predetermined distance, for example, about 2~3mm or so.

Four projection 32b have identical structure each other, therefore a projection 32b in four projection 32b is said It is bright.Projection 32b is protruded outward from the central axis of axle portion 32B along radial direction, and for example, with the thickness of 1.5mm from The bottom of axle portion 32B extends up to reach the surface of supporting plate.In addition, the stirring face of the side in the bottom of projection 32b The corner of 32b1 is formed with the stepped portion 32S being made up of thin indentation in the way of the lowest end forms thin-walled portion. In Fig. 8, the straight line oblique upper extension to the right that stepped portion 32S is intersected along the end face with axle portion 32B with predetermined gradient.In addition, Stepped portion 32S extends from one end of projection 32b to the other end along the radial direction of axle portion 32B towards its center axis.

Stirring face 32b1 is, for example, the face in the direction opposite with the direction of rotation of axle portion 32B.It is relative with stirring face 32b1 The bottom of the stirring face 32b2 of the opposing party is orthogonal with the lower surface of axle portion 32B.Additionally, the stirring face 32b2 of the opposing party most under End can also be carried out similar to the processing for forming thinner wall section.

In the structure shown here, in the case where fluid is extracted along the direction shown in arrow, as will be formed in projection 32b Stepped portion 32S peripheries fluid stream from the stripping area PEA in the region of sur-face peeling become due to stepped portion 32S ratio Smaller, the region EPA that fluid can effectively pass through in suction inlet 10a expands, used as a result, delivery flow increases.

And, in addition, as shown in figure 9, pump rotor is not limited to the example shown in Fig. 1, Fig. 6 and Fig. 8, for example, it is also possible to Formed with the lowest end in the corner of the stirring face 42b1 of a side of the bottom of the projection 42b of the axle portion 42B of pump rotor 42 The mode of thin-walled portion forms circular-arc part 42R.

The axle portion 42B of pump rotor 42 has four projection 42b as vanelets, and four projections have about 9mm's or so Width and extend along central axis, and form cross section.Left at a distance of the lower surface of suction line the bottom of axle portion 42B Predetermined distance, for example, about 2~3mm or so.

Four projection 42b have identical structure each other, therefore a projection 42b in four projection 42b is said It is bright.Projection 42b is protruded outward from central axis along radial direction, and for example, with the thickness of 1.5mm from axle portion 42B's Bottom extends up to reach the surface of supporting plate.In addition, the corner of the stirring face 42b1 of a side of the bottom of projection 42b with The mode that the lowest end forms thin-walled portion is formed with such as curved surface, is preferably formed with the circular arc with predetermined radius of curvature Shape portion 42R.Circular-arc part 42R extends along the radial direction of axle portion 42B in projection 42b towards its center axis.

In fig .9, stirring face 42b1 is, for example, the face in the direction opposite with the direction of rotation of the axle portion 42B described in arrow. The bottom of the stirring face 42b2 of the opposing party relative with stirring face 42b1 is orthogonal with the lower surface of axle portion 42B.Additionally, the opposing party Stirring face 42b2 bottom can also carry out similar to formed thinner wall section processing.

In the structure shown here, in the case where fluid is extracted along the direction shown in arrow, as will be formed in projection 42b Circular-arc part 42R peripheries fluid stream from the stripping area PEA in the region of sur-face peeling become due to circular-arc part 42R ratio Smaller, the region EPA that fluid can effectively pass through in suction inlet 10a expands, used as a result, delivery flow increases.

Additionally, in above-mentioned example, pump rotor is set to have four projections, but is not limited to the example, for example, axle portion There can be the projection of three or more than five.In addition, the cross section of the projection in above-mentioned example is from the center of axle portion The generally rectangular section of identical is set to towards foreign side, but is not limited to the example, for example, it is also possible to the face in the cross section for projection The shape that product is gradually reduced from the centrally directed foreign side of axle portion.And, four projections in above-mentioned example are configured to put down each other The stirring face for being formed capablely is intersected perpendicular to each other, but not limited to this, for example, it is also possible to the stirring face shape being formed parallel to each other As flexure plane, each projection intersects each other at the center of axle portion.

Still further, each projection is set to width 9mm, thickness 1.5mm, but not limited to this, and its thickness can be suitably Change.And, in above-mentioned example, pump rotor is applied to draining pump, but not limited to this, naturally it is also possible to be applied to other The pump of form.

Claims (10)

1. a kind of pump rotor, it is characterised in that possess：

Supporting plate, its be formed with predetermined intervals for fluid by opening and when being rotated by rotary drive unit Fluid to being imported via the opening applies multiple stirring sheets of centrifugal force；And

Axle portion, it forms as one with above-mentioned supporting plate, and with multiple projections, above-mentioned projection have respectively a pair of stirring faces and With radial protrusion,

The part intersected with the end face of the bottom of the axle portion by the stirring face of the side in above-mentioned a pair of stirring faces, reducing should Stirring face as by the flowing of above-mentioned fluid from the stripping area in the region of sur-face peeling.

2. pump rotor according to claim 1, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Angle of inclination chamfering.

3. pump rotor according to claim 1, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Depth stage portion.

4. pump rotor according to claim 1, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is stepped portion, The stepped portion has multiple indentations and along the linear extension with predetermined angle of inclination.

5. pump rotor according to claim 1, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Radius of curvature circular-arc part.

6. a kind of draining pump, it is characterised in that possess：

Pump case, it has suction inlet and outlet；

Supporting plate, it can be rotationally configured in the rotor receiving room of above-mentioned pump case, and is formed with predetermined intervals for warp Opening that the fluid imported by above-mentioned suction inlet passes through and when being rotated by rotary drive unit to via the opening institute The fluid of importing applies multiple stirring sheets of centrifugal force；And

Axle portion, it forms as one with above-mentioned supporting plate, and with multiple projections, above-mentioned projection has a pair of stirring faces simultaneously respectively Extend and with radial protrusion in above-mentioned suction inlet,

The part intersected with the end face of the bottom of the axle portion by the stirring face of the side in above-mentioned a pair of stirring faces, reducing should Stirring face as by the flowing of above-mentioned fluid from the stripping area in the region of sur-face peeling.

7. draining pump according to claim 6, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Angle of inclination chamfering.

8. draining pump according to claim 6, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Depth stage portion.

9. draining pump according to claim 6, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is stepped portion, The stepped portion has multiple indentations and along the linear extension with predetermined angle of inclination.

10. draining pump according to claim 6, it is characterised in that

The part that the stirring face of the side in above-mentioned a pair of stirring faces is intersected with the end face of the bottom of the axle portion is that have to make a reservation for Radius of curvature circular-arc part.