CN109322851A - Impeller of rotor component, the pump motor including it and the method that manufactures it - Google Patents
Impeller of rotor component, the pump motor including it and the method that manufactures it Download PDFInfo
- Publication number
- CN109322851A CN109322851A CN201811425612.XA CN201811425612A CN109322851A CN 109322851 A CN109322851 A CN 109322851A CN 201811425612 A CN201811425612 A CN 201811425612A CN 109322851 A CN109322851 A CN 109322851A
- Authority
- CN
- China
- Prior art keywords
- impeller
- cavity
- injection molding
- magnet
- iron core
- 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
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000001746 injection moulding Methods 0.000 claims abstract description 73
- 239000004033 plastic Substances 0.000 claims abstract description 71
- 229920003023 plastic Polymers 0.000 claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 68
- 210000003205 muscle Anatomy 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 38
- 230000004927 fusion Effects 0.000 claims description 36
- 230000008018 melting Effects 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 238000009825 accumulation Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001727 in vivo Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000004734 Polyphenylene sulfide Substances 0.000 description 4
- 229920000069 polyphenylene sulfide Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000034 Plastomer Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
- F04D13/064—Details of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The present invention provides a kind of impeller of rotor component, including impeller injection molding body comprising impeller wheel portion, rotor subject part and neck portion, impeller wheel portion and rotor subject part are connected to each other via neck portion, wherein the rotor subject part has the first cavity；Magnet, including multiple magnetic poles, the multiple magnetic pole are circumferentially spliced to form annular shape, and the magnet is contained in first cavity；And secondary plastic body, it is formed by injection molding and magnet is enclosed in first cavity.The light-weight of the impeller of rotor component, rotary inertia reduce and sealing performance is high.The present invention also provides a kind of pump motors including the impeller of rotor component.In addition, the present invention also provides a kind of methods for manufacturing impeller of rotor component.
Description
Technical field
The present invention relates to a kind of impeller of rotor component, a kind of pump motor including the impeller of rotor component, and it is a kind of
The method for manufacturing impeller of rotor component.
Background technique
Impeller of rotor component is the pith of pump motor, for cooperating with the stator module of pump motor to provide rotation
Rotatory force.Impeller of rotor component generallys use flush type magnet, and wherein magnet is first embedded into core interior and is molded together, so
It is integral with impeller wheel portion injection molding again afterwards.The leakage field of this flush type magnet is larger, and since the volume of iron core is larger,
Weight is big, rotary inertia is big, leads to that starting performance is poor, torque wave is big, larger to the abrasion of the gasket and rotor shaft of rotor, makes
It is big at the vibration of pump motor, noise.
In addition, when iron core and magnet to be molded, it, cannot due to the presence of iron core front and back end component used for positioning
It realizes completely plastic.Therefore, the risk exposed there are rotor core or magnet using the impeller of rotor component of flush type magnet, it is close
Envelope property is bad, is easy to cause leak, iron core to get rusty, to influence motor performance, or even causes security risk.
Summary of the invention
In order to solve the problems in the existing technology, the purpose of the present invention is to provide a kind of impeller of rotor components.It should
Impeller of rotor component includes: impeller injection molding body comprising impeller wheel portion, rotor subject part and neck portion, impeller wheel portion and
Rotor subject part is connected to each other via neck portion, wherein the rotor subject part has the first cavity；Magnet, including
Multiple magnetic poles, the multiple magnetic pole are circumferentially spliced to form annular shape, and the magnet is contained in first cavity；And two
Secondary plastic body is formed by injection molding and magnet is enclosed in first cavity.
Since circumferentially splicing is to form annular shape for multiple magnetic poles, without being embedded in iron core, so magnet utilizes effect
Rate is high, and allow it is secondary it is plastic after, magnet can be by completely plastic.Therefore, light-weight, the rotation of impeller of rotor component
Inertia reduces, and sealing performance improves.
In one embodiment, the accumulation in the gap between the adjacent every two magnetic pole in the multiple magnetic pole is less than
0.5mm。
In one embodiment, each of the multiple magnetic pole is arc-shaped, and radial thickness is greater than two sides among it
Radial thickness.Magnet including such magnetic pole contributes to form non-uniform gap magnetic field, makes back emf waveform close to sine
Wave.
In one embodiment, the rotor subject part further includes tubular shell part, intermediate barrel and for holding
The hollow bearing part of idling axis, tubular shell part, intermediate barrel and hollow bearing part are coaxially arranged from outside to inside,
Tubular shell part and intermediate barrel limit first cavity, and intermediate barrel and hollow bearing part limit second
Cavity, the secondary plastic body include first end cover part, second end cover part and connection first end cover part and second end cover
Partial middle interconnecting piece point, first end cover part, second end cover part are from the first cavity closed at both ends, and middle interconnecting piece divides
Fill the second cavity, the secondary plastic body integrated injection molding.
Middle interconnecting piece divides the overall structure so that the secondary integral injection molding of the plastic bodily form, helps to enhance plastic knot
The intensity of structure.
Preferably, the rotor subject part further includes end housing parts, in tubular shell part and intermediate tubular
Radially extended between part, for limit the first cavity, end housing parts be provided at least one stream material mouth, described at least one
A stream material mouth is connected to the first cavity, at least one described stream material mouth in the injection moulding process of secondary plastic body for allowing to be molded
Material flows through, and is filled after injection molding by secondary plastic body.
At least one stream material mouth that end housing parts are arranged in is used for the filling of injected plastics material.
Preferably, impeller injection molding body further includes multiple flanks, and barrel is connected between in the second cavity in
Between empty bearing portions, and covered by middle interconnecting piece subpackage.
Multiple flanks enhance the intensity of plastic structure, and secondary plastic body can be prevented relative to impeller injection molding body
It rotates in a circumferential direction.
Preferably, hollow bearing part is cylinder, has the intermediate throughholes for passing through shaft, neck portion connection
Between impeller wheel portion and hollow bearing part.
In one embodiment, end housing parts and first end cover part are by least partly melting multiple first fusions
Muscle and combine, tubular shell part and second end cover part and at least partly the second fusion of melting muscle in conjunction with, Duo Ge
One fusion muscle is arranged in front of melting on the end face of end housing parts being located on the outside of the first cavity, and the second fusion muscle is molten
It is extended circumferentially over upon on the end face of tubular shell part before melting.
First fusion muscle and the second fusion muscle help to enhance the sealing performance and intensity of entire plastic structure.
In one embodiment, the impeller injection molding body integrated injection molding.
Therefore, reduce manufacturing procedure and enhance the intensity of impeller of rotor component.
In one embodiment, the section of the close rotor subject part of neck portion has annular groove, first end cover
The a part divided is filled into annular groove and covers annular groove.
Annular groove helps to enhance the structural strength of entire plastic structure and enhances sealing performance.
In one embodiment, impeller of rotor component can also include iron core, and the iron core is annular shape and is contained in
In first cavity, and closed by the second plastic body, and the iron core is located in the inside of magnet, the interior annular of magnet
The shape in the exterior annular face of face iron core adjacent thereto is corresponding, the outer shape of magnet tubular shell part adjacent thereto
Interior annular face shape it is corresponding.
In the present invention, magnetic pole is not in insertion iron core, and iron core is annular shape and non-solid, so the body of iron core
Product is small, light-weight, so that the light-weight of impeller of rotor component, rotary inertia reduce.Also, pass through the outside of intermediate barrel
The interior annular face of annular surface and tubular shell part perpendicular to positioning iron core and magnet in axially direction, without
Other positioning elements, thus may be implemented completely it is plastic so that the good airproof performance of impeller of rotor component.
Preferably, intermediate barrel has the multiple muscle portions for projecting radially outwardly and extending in the axial direction, iron core
With multiple grooves corresponding with the shape of multiple muscle portions of intermediate barrel.
Multiple groove facilitates the rotation for preventing iron core relative to intermediate barrel.
In one embodiment, secondary plastic body further includes extention, and the extention is filled in phase in multiple magnetic poles
Between adjacent two magnetic poles, magnet and injection-moulded housing part, magnet and iron core or iron core and intermediate barrel.
In one embodiment, the impeller of rotor component further includes impeller cover, and impeller cover is fixed to impeller wheel portion, impeller portion
Set up separately and be equipped with the first position portion and the first fool proof part, the impeller disk is provided with the second positioning region with the cooperation of the first position portion
The the second fool proof part divided and cooperated with the first fool proof part.
The setting of first position portion, the second position portion, the first fool proof part and the second fool proof part facilitates impeller
The correct and efficient installation of lid.
In addition, the object of the invention is also to provide a kind of pump motors comprising stator module and foregoing
Impeller of rotor component.
In addition, the present invention also provides a kind of methods for manufacturing impeller of rotor component comprising: impeller injection molding body is provided,
Including impeller wheel portion, rotor subject part and neck portion, impeller wheel portion and rotor subject part connect each other via neck portion
It connects, wherein the rotor subject part has the first cavity；Magnet is put into first cavity, the magnet includes more
A magnetic pole, the multiple magnetic pole are circumferentially spliced to form annular shape；And impeller injection molding body is molded to form secondary packet
Magnet is enclosed in first cavity by plastomer, the secondary plastic body.
In one embodiment, the accumulation in the gap between the adjacent every two magnetic pole in the multiple magnetic pole is less than
0.5mm。
In one embodiment, the rotor subject part further includes tubular shell part, intermediate barrel and for supplying
The hollow bearing part that shaft passes through, tubular shell part, intermediate barrel and hollow bearing part coaxial cloth from outside to inside
It sets, tubular shell part and intermediate barrel limit first cavity, and intermediate barrel and hollow bearing part limit
Second cavity, the secondary plastic body include first end cover part, second end cover part and connection first end cover part and second
The middle interconnecting piece of end cap portion point, first end cover part, second end cover part are from the first cavity closed at both ends, and centre connects
It is partially filled with the second cavity, the secondary plastic bodily form is integrally formed.
In one embodiment, the rotor subject part further includes end housing parts, in tubular shell part in
Between radially extend between barrel, for limiting the first cavity, end housing parts are provided at least one stream material mouth, right
During impeller injection molding body is molded, injected plastics material flows into first cavity by least one described stream material mouth, and it is described at least
One stream material mouth is filled after the injection molding by secondary plastic body.
In one embodiment, impeller injection molding body further includes multiple flanks, is connected between cylindrical portion in the second cavity
Divide between hollow bearing part, and the middle interconnecting piece subpackage being formed after the injection molding is covered.
In one embodiment, the end housing parts before the injection molding there is setting to be located at outside the first cavity at it
Multiple first fusion muscle on the end face of side, during the injection molding, the multiple first fusion muscle melting deformation, in the note
After modeling, the multiple first fusion muscle of deformation solidifies the first end cover part with junction end housing parts and formation.
In one embodiment, the tubular shell part has before the injection molding and extends circumferentially over upon on its end face
Second fusion muscle, during the injection molding, the second fusion muscle melting deformation, after the injection molding, described the of deformation
Two fusion muscle solidify the second end cover part to combine tubular shell part and formation.
In one embodiment, the section of the close rotor subject part of neck portion has annular groove, in the injection molding
Period, injected plastics material flow into annular groove and near annular groove, so that a part of the first end cover part formed is filled out
It is charged in annular groove and covers annular groove.
In one embodiment, the method also includes the iron core of annular shape is put into the first cavity before the injection molding
In, and be located in the inside of the magnet, wherein after the injection molding, the secondary plastic body by magnet and iron core together
It being enclosed in first cavity, the shape in the exterior annular face of the interior annular face iron core adjacent thereto of magnet is corresponding,
The shape in the interior annular face of the outer shape of magnet tubular shell part adjacent thereto is corresponding, and intermediate barrel
With the multiple muscle portions for projecting radially outwardly and extending in the axial direction, iron core has multiple muscle portions with intermediate barrel
The corresponding multiple grooves of shape.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Through this specification, the same or similar component has the same or similar appended drawing reference.
Fig. 1 is the perspective view of impeller of rotor component according to the present invention；
Fig. 2 be include impeller of rotor component according to the present invention pump motor cross-sectional view；
Fig. 3 is the decomposition perspective view of impeller of rotor component according to the present invention；
Fig. 4 is the cross-sectional view of impeller of rotor component according to the present invention；
Fig. 5 is the perspective view of the impeller injection molding body of impeller of rotor component according to the present invention；
Fig. 6 is the face upwarding view of the impeller injection molding body of impeller of rotor component according to the present invention；
Fig. 7 is another perspective view of the impeller injection molding body of impeller of rotor component according to the present invention；
Fig. 8 is another perspective view of the impeller injection molding body of impeller of rotor component according to the present invention；
Fig. 9 is the magnet of impeller of rotor component according to the present invention and the top view of iron core；
Figure 10 is the perspective view of the iron core of impeller of rotor component according to the present invention；
Figure 11 is the perspective view of a part of impeller of rotor component according to the present invention；
Figure 12 is the perspective view of a part of impeller of rotor component according to the present invention；
Figure 13 is the partial enlarged view of the circle part A of Figure 11；
Figure 14 is the partial enlarged view of the circle part B of Figure 12；
Figure 15 is another perspective view of the impeller injection molding body of impeller of rotor component according to the present invention.
Reference signs list
Impeller of rotor component 100
Impeller cover 1
Second position portion 11
Second fool proof part 12
Impeller injection molding body 2
Impeller wheel portion 21
The impeller disk 211
Blade 212
First position portion 213
First fool proof part 214
Rotor subject part 22
Injection-moulded housing part 221
Tubular shell part 2211
End housing parts 2212
Flow material mouth 2213
First fusion muscle 2214
Second fusion muscle 2215
Intermediate barrel 222
Muscle portion 2221
Hollow bearing part 223
First cavity 224
Second cavity 225
Flank 226
Neck portion 23
Annular groove 231
Magnet 3
Magnetic pole 31
Iron core 4
Groove 41
Secondary plastic body 5
Middle interconnecting piece point 51
First end cover part 52
Second end cover part 53
Water pump cover 200
Shaft 300
Stator module 400
Specific embodiment
In the following, the impeller of rotor component of embodiment according to the present invention is described in detail with reference to the drawings.To make implementation of the present invention
The purposes, technical schemes and advantages of example are clearer, and following will be combined with the drawings in the embodiments of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, without
It is whole embodiments.
Therefore, the detailed description of the embodiment of the present invention provided in conjunction with attached drawing is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
Terms used herein are intended to explain embodiment, and are not intended to be limited to and/or limit the present invention.It is understood that
It is that the orientation or positional relationship of the instructions such as term "inner", "outside", "upper", "lower" is that orientation based on the figure or position are closed
Be the invention product using when the orientation or positional relationship usually put or those skilled in the art usually manage
The orientation or positional relationship of solution, is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion is signified sets
Standby or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
Moreover, defining unless the context otherwise, otherwise singular includes plural form.Throughout the specification, term
" comprising ", " having ", etc. herein for specifying depositing for the feature, number, step, operation, component, assembly unit or combinations thereof
, but do not preclude the presence or addition of other one or more features, number, step, operation, component, assembly unit or combinations thereof.
In addition, even if the term including the ordinal numbers such as " first ", " second " can be used for describing various parts, but these portions
Part is not limited by these terms, and these terms are only used to distinguish an element and other elements.For example, not departing from
In the case where the scope of the present invention, the first component can be referred to as second component, and similarly, and second component can be referred to as
The first component.
Fig. 1 shows the perspective view of impeller of rotor component 100 according to the present invention, and Fig. 2 shows include according to the present invention
Impeller of rotor component 100 pump motor cross-sectional view.As shown in Figure 1, 2, pump motor includes water pump cover 200, turns
Axis 300, stator module 400 and impeller of rotor component 100.Impeller of rotor component 100 is by shaft 300 relative to stator module
400 rotations, and then push the liquid motion in water pump cover 200.
Fig. 3 is the decomposition perspective view of impeller of rotor component 100 according to the present invention, and Fig. 4 is rotor leaf according to the present invention
The cross-sectional view of wheel assembly 100.As shown in Figure 3,4, impeller of rotor component 100 includes impeller cover 1 (being not shown in Fig. 4), leaf
Take turns injection molding body 2, magnet 3, iron core 4 and secondary plastic body 5.
Fig. 5-8 shows the various perspective views of the impeller injection molding body 2 of impeller of rotor component 100 according to the present invention.Such as figure
Shown in 5-8, impeller injection molding body 2 includes impeller wheel portion 21, rotor subject part 22 and neck portion 23, impeller wheel portion 21 and rotor
Main part 22 is connected to each other via neck portion 23.Impeller wheel portion 21 includes the impeller disk 211 and is carried on more on the impeller disk
A blade 212, impeller wheel portion 21 are configured to and via neck portion 23 from 22 received rotary power of rotor subject part
Rotation, so that liquid applied force of the blade 212 into water pump cover 200.Impeller cover 1 is connected to the impeller portion of impeller injection molding body 2
Divide 21.
Impeller bodies part 22 includes injection-moulded housing part 221 coaxially arranged from outside to inside, 222 and of intermediate barrel
Hollow bearing part 223, injection-moulded housing part 221 and intermediate barrel 222 form the first cavity 224 of annular, intermediate cylinder
Shape part 222 and hollow bearing part 223 form the second cavity 225 of annular.
Injection-moulded housing part 221 is substantially to the cup-like shape of a side opening comprising tubular shell part 2211 and end
Portion's housing parts 2212.End housing parts 2212 between tubular shell part 2211 and intermediate barrel 222 radially
Extend to connect the two.To which end housing parts 2212 are used as the bottom surface of the first cavity 224,2211 He of tubular shell part
Intermediate barrel 222 is used separately as the lateral wall and inner sidewall of the first cavity 224.
Multiple flanks 226 are connected between barrel 222 and hollow bearing part 223 in the second cavity 225.
Hollow bearing part 223 is the cylinder with intermediate throughholes.The other component one of hollow bearing part 223 and impeller of rotor component
It rises and is rotated around shaft 300, the interior annular face of shaft 300 and hollow bearing part 223 rubs.
Neck portion 23 is connected between hollow bearing part 223 and the impeller disk 211, but not limited to this.
The all parts of impeller injection molding body 2 are that a part is particularly integrated injection molding.In order to enable hollow bearing
Part 223 has specific hardness with wear-resisting, and impeller injection molding body 2 can be added carbon fiber (PPS+CF) material shape by polyphenylene sulfide
At.
Fig. 9 is the magnet 3 of impeller of rotor component 100 according to the present invention and the top view of iron core 4.As shown in Fig. 4,9, magnetic
Body 3 and iron core 4 are contained in the first cavity 224, and magnet 3 and iron core 4 are annular shape.Iron core 4 is located in the interior of magnet 3
The shape of side, the exterior annular face of the interior annular face of magnet 3 iron core 4 adjacent thereto is corresponding, the outer shape of magnet 3 with
The shape of the interior side ring surface (that is, inner wall of the first cavity 224) of its neighbouring tubular shell part 2211 is corresponding.In addition,
The equal adjacent end housing parts 2212 in one end face of iron core 4 and magnet 3.
Magnet 3 includes multiple magnetic poles 31, and multiple magnetic pole 31 is circumferentially spliced to form annular shape, and multiple magnetic pole
The accumulation in the gap of the every two adjacent pole in 31 is less than 0.5mm.In this example, multiple magnetic poles 31 are four, can also
Think other quantity, such as two, six or eight etc..Four 31 arranged for interval of magnetic pole at the pole N and the pole S, but not limited to this.
Each magnetic pole 31 is arc-shaped, and radial thickness is greater than two sides radial thickness among it.Including such magnetic pole
31 magnet 3 can form non-uniform gap magnetic field, make back emf waveform close to sine wave.Therefore, on the one hand, can reduce
Even be eliminated counter electromotive force harmonic wave, total harmonic distortion factor reduces cogging torque, reduces torque pulsation, eliminate or reduce vibration and
On the other hand noise, may be implemented that leakage field is small, magnet utilization rate is high so that the operation of impeller of rotor component 100 is more steady,
Power density is big, and loss is low, so that pump motor efficiency improves, to improve power-weight ratio.
Since magnet 3 is placed in the surface of iron core 4, without being built-in in iron core 4, so 3 utilization rate of magnet is high, then plus
Upper core 4 is cirque structure and non-solid, so iron core 4 is small in size, light weight.Therefore, impeller of rotor component 100 is whole
Small in size, light-weight, rotary inertia is small so that the abrasion of all parts of impeller of rotor component 100 it is small, it is with small vibration, make an uproar
Sound is low, and the starting performance of the motor including impeller of rotor component 100 is good, torque ripple is small.In addition, being molded subsequent
Cheng Zhong can hung down by the exterior annular face of intermediate barrel 222 and the interior annular face of tubular shell part 2211
Directly in positioning iron core 4 and magnet 3 in axially direction, 4 He of iron core is positioned in the axial direction by end housing parts 2212
The front and back end of magnet 3, rotor subject part 22 does not need positioning element, it is thereby achieved that plastic, impeller of rotor component completely
100 good airproof performance.
In other embodiments, iron core 4 can also be not provided with.For example, in another embodiment, only magnet 3 is contained in
In one cavity 224.
Figure 10 is the perspective view of the iron core 4 of impeller of rotor component 100 according to the present invention.As shown in figure 5, intermediate cylindrical portion
Divide 222 there are the multiple muscle portions 2221 for projecting radially outwardly and extending in the axial direction.As shown in Figure 10, iron core 4 has
Multiple grooves 41 corresponding with the shape of multiple muscle portions 2221 of intermediate barrel 222.Multiple muscle portions 2221 can be contained in
In multiple grooves 41, this facilitates the rotation for preventing iron core 4 relative to intermediate barrel 222.
Magnet 3 and iron core 4 are contained in the first cavity 224, then can rotor subject part 22 to impeller injection molding body 2
It is molded, with fixed and plastic magnet 3 and iron core 4.Injected plastics material can add glass fibre (PPS+GF) material for polyphenylene sulfide
Material.
As illustrated in figs. 5-7, end housing parts 2212 are provided at least one the stream material mouth being connected to the first cavity 224
2213, at least one the injected plastics material that material mouth 2213 pours into molten condition can be flowed from this, can also be filled from multiple flanks 226
Enter the injected plastics material of molten condition, so that injected plastics material fills the first cavity 224 and the second cavity 225.In the filling process,
The adjacent magnetic of magnet 3 and iron core 4, iron core 4 and intermediate barrel 222, magnet 3 and injection-moulded housing part 221 and magnet 3
May exist gap between pole 31, injected plastics material can fill these gaps to form extention (not shown), magnet 3 and iron
Core 4, iron core 4 and intermediate barrel 222, magnet 3 and the adjacent magnetic pole 31 of injection-moulded housing part 221 and magnet 3 pass through
The injection molding of extention and link together.For example, the gap between iron core 4 and intermediate barrel 222 is injection molding material and fills out
It fills, after injected plastics material solidification, iron core 4 is linked together with intermediate barrel 222 by injection molding.
Injected plastics material flow to the separate impeller portion of rotor subject part 22 by the first cavity 224 and the second cavity 225
Divide 21 far-end, and is also accumulated in the proximal end of the close impeller wheel portion 21 of rotor subject part 22.Solidify injected plastics material
To form secondary plastic body 5.Secondary plastic body 5 includes the middle interconnecting piece point 51 of the second cavity 225 of filling, is located at rotor subject
The second end cover part 53 of the first end cover part 52 of the proximal end of part 22 and the far-end positioned at rotor subject part 22.With
In making the molding mold of injected plastics material can be designed so that injected plastics material does not flow into the intermediate throughholes of hollow bearing part 223
In, and can according to need and be designed so that secondary plastic body 5 forms specific structure.First end cover part 52 and second end cover
Part 53 is from the first cavity 224 closed at both ends, wherein first end cover part 52 is formed in end housing section around neck portion 23
Divide 2212 outside to close stream material mouth 2213.
The middle interconnecting piece being filled into the second cavity 225 point 51 can make secondary plastic body 5 form an entirety knot
Structure enhances the structural strength of secondary plastic body 5.In addition, middle interconnecting piece point 51 coats multiple flanks in the second cavity 225
226 form the structural strength increase that can make entire plastic structure, and can prevent rotating in a circumferential direction for secondary plastic body 5.
The axial length of each of multiple flanks 226 can be equal to or be preferably less than intermediate barrel 222 and hollow shaft bearing portion
Divide 223 axial length.
In addition, being provided with annular groove 231, first end at the section of the close rotor subject part 22 of neck portion 23
A part around neck portion 23 of cover 52 is filled into annular groove 231 and covers annular groove 231.Annular groove
There are 231 to help enhance the structural strength of entire plastic structure and enhance sealing performance.
Figure 11 and Figure 12 is the perspective view of a part of impeller of rotor component 100 according to the present invention respectively.Figure 13 and figure
14 be respectively Figure 11 circle part A and Figure 12 circle part B partial enlarged view.As illustrated in figs. 11-14, more before injection molding
Being located on the end face in 224 outside of the first cavity in end housing parts 2212 can be set in a first fusion muscle 2214, and
Second fusion muscle 2215 can extend circumferentially over upon on the end face of tubular shell part 2211.It is multiple first fusion muscle 2214 or
The cross section of the second fusion muscle 2215 can be triangle or trapezoidal, and the side length on the side length of the triangle or trapezoidal long bottom edge exists
In the range of 0.2-1mm.Second fusion muscle 2215 is not limited to one.During injection molding, multiple first fusion, 2214 Hes of muscle
Second fusion muscle 2215 is softened or melted.After injected plastics material solidification, end housing parts 2212 pass through with first end cover part 52
Multiple first fuse muscle and combine closely, and tubular shell part is closely tied with second end cover part by the second fusion muscle 2215
It closes.Multiple first fusion muscle 2214 and the second fusion muscle 2215 help to enhance the sealing performance and intensity of entire plastic structure.
In addition, the fusion of circumferentially extending also can be set on the end face of 21 side of separate impeller wheel portion of intermediate barrel 222
Muscle, the fusion muscle facilitate the combination of intermediate barrel 222 and secondary plastic body 5.
Figure 15 is 1 perspective view of impeller cover of impeller of rotor component 100 according to the present invention.As shown in Figure 7,8, impeller wheel portion
21 include multiple blades 212 and the impeller disk 211 for carrying multiple blades.First position portion 213 and the first fool proof part 214 can
To be arranged on blade 212.As shown in figure 15, cooperate with the first position portion 213 to position impeller relative to impeller wheel portion 21
Second position portion 11 of lid 1 and with the first fool proof part 214 cooperation so that impeller cover 1 relative to impeller wheel portion 21 only only
Second fool proof part 12 of one assembly method can be set on impeller cover 1.Impeller cover 1 is welded on impeller wheel portion 21 and in leaf
It is formed such that blade 212 pushes the fluid space of liquid therein between wheel cap 1 and impeller wheel portion 21.In other examples,
One position portion 213 and the first fool proof part 214 can also be arranged on the impeller disk 211.First position portion 213 can be prominent
Cylinder out, the second position portion 11 can be the through-hole passed through for cylinder.First fool proof part 214 can be outstanding convex
Platform, the second fool proof part 12 can be the notch being open circumferentially skewedly at impeller cover edge.In other embodiments, fool proof portion
Point and position portion can be integral with shape fool proof position portion.Herein, " fool proof " refers to the behavior restraint of prevention correction
Means allow operator not need to spend attention, also not need experience and profession with the limiting structure for avoiding generating mistake
Knowledge directly can inerrably be completed correctly to operate.
It is according to the present invention manufacture impeller of rotor component 100 method include:
1) impeller injection molding body 2 is provided comprising impeller portion 21 divides, rotor subject part 22 and neck portion 23, impeller portion
Points 21 and rotor subject part 22 be connected to each other via neck portion 23, wherein the rotor subject part 22 has the first chamber
Body 224；
2) magnet 3 is put into first cavity 224；And
3) iron core of annular shape 4 is put into the first cavity 224, and is located in the inside of the magnet 3,
4) impeller injection molding body 2 is molded to form secondary plastic body 5, the secondary plastic body 5 is by magnet 3 and iron core
4 are enclosed in first cavity 224.
The scope of the present invention is not limited by above described embodiment, but by appended claims and its
Equivalent limits.
Claims (25)
1. a kind of impeller of rotor component, which is characterized in that including
Impeller injection molding body comprising impeller wheel portion, rotor subject part and neck portion, impeller wheel portion and rotor subject part warp
It is connected to each other by neck portion, wherein the rotor subject part has the first cavity；
Magnet, including multiple magnetic poles, the multiple magnetic pole are circumferentially spliced to form annular shape, and the magnet is contained in described first
In cavity；And
Secondary plastic body is formed by injection molding and magnet is enclosed in first cavity.
2. impeller of rotor component according to claim 1, which is characterized in that
The accumulation in the gap between adjacent every two magnetic pole in the multiple magnetic pole is less than 0.5mm.
3. impeller of rotor component according to claim 1, which is characterized in that
Each of the multiple magnetic pole is arc-shaped, and radial thickness is greater than two sides radial thickness among it.
4. impeller of rotor component according to claim 1, which is characterized in that
The rotor subject part further includes tubular shell part, intermediate barrel and the hollow bearing for passing through for shaft
Part, tubular shell part, intermediate barrel and hollow bearing part are coaxially arranged from outside to inside, and tubular shell part is in
Between barrel limit first cavity, intermediate barrel and hollow bearing part limit the second cavity,
The secondary plastic body includes first end cover part, second end cover part and connection first end cover part and second end cover
The middle interconnecting piece point divided, first end cover part, second end cover part are from the first cavity closed at both ends, and middle interconnecting piece point is filled out
The second cavity is filled,
The secondary plastic body integrated injection molding.
5. impeller of rotor component according to claim 4, which is characterized in that
The rotor subject part further includes end housing parts, radial between tubular shell part and intermediate barrel
Extend, for limiting the first cavity,
End housing parts be provided at least one stream material mouth, it is described at least one stream material mouth be connected to the first cavity, it is described extremely
A few stream material mouth is used to allow injected plastics material to flow through in the injection moulding process of secondary plastic body, and by secondary plastic after injection molding
Body filling.
6. impeller of rotor component according to claim 5, which is characterized in that
Impeller injection molding body further includes multiple flanks, be connected between in the second cavity barrel and hollow bearing part it
Between, and covered by middle interconnecting piece subpackage.
7. impeller of rotor component according to claim 5, which is characterized in that
Hollow bearing part is cylinder, has the intermediate throughholes for passing through shaft,
Neck portion is connected between impeller wheel portion and hollow bearing part.
8. impeller of rotor component according to claim 5, which is characterized in that
End housing parts and first end cover part and at least partly melting multiple first fusions muscle in conjunction with, tubular shell
Part is in conjunction with second end cover part is and at least partly the second fusion of melting muscle, and multiple first fusion muscle are before melting
It is arranged on the end face of end housing parts being located on the outside of the first cavity, the second fusion muscle is before melting in tubular shell portion
It is extended circumferentially over upon on the end face divided.
9. impeller of rotor component according to claim 1, which is characterized in that
The impeller injection molding body integrated injection molding.
10. impeller of rotor component according to claim 4, which is characterized in that
The section of the close rotor subject part of neck portion has annular groove, and a part of first end cover part is filled into ring
In connected in star and cover annular groove.
11. the impeller of rotor component according to any one of claim 4-10, which is characterized in that further include
Iron core, the iron core are annular shape and are contained in first cavity, and are closed by the second plastic body,
The iron core is located in the inside of magnet, the shape in the exterior annular face of the interior annular face iron core adjacent thereto of magnet
Corresponding, the shape in the interior annular face of the outer shape of magnet tubular shell part adjacent thereto is corresponding,
Intermediate barrel has the multiple muscle portions for projecting radially outwardly and extending in the axial direction, and iron core has and intermediate cylinder
The corresponding multiple grooves of the shape of multiple muscle portions of shape part.
12. impeller of rotor component according to claim 11, which is characterized in that
Secondary plastic body further includes extention, and the extention is filled in two magnetic poles, magnets adjacent in multiple magnetic poles
Between injection-moulded housing part, magnet and iron core or iron core and intermediate barrel.
13. impeller of rotor component according to claim 1 to 10, which is characterized in that further include
Iron core, the iron core are annular shape and are contained in first cavity, and are closed by the second plastic body,
The iron core is located in the inside of magnet, and the interior annular face of magnet is towards the exterior annular face of iron core.
14. impeller of rotor component according to claim 1 to 10, which is characterized in that
The impeller of rotor component further includes impeller cover, and impeller cover is fixed to impeller wheel portion, and impeller wheel portion is provided with the first positioning
Part and the first fool proof part, the impeller disk be provided with the first position portion cooperation the second position portion and with the first fool proof portion
Distribute the second fool proof part closed.
15. a kind of pump motor, which is characterized in that including
Stator module, and
Impeller of rotor component described in any one of -14 according to claim 1.
16. a kind of method for manufacturing impeller of rotor component, which is characterized in that the described method includes:
There is provided impeller injection molding body comprising impeller wheel portion, rotor subject part and neck portion, impeller wheel portion and rotor subject portion
Lease making is connected to each other by neck portion, wherein the rotor subject part has the first cavity；
Magnet is put into first cavity, the magnet includes multiple magnetic poles, and the multiple magnetic pole is circumferentially spliced to form ring
Shape shape；And
Impeller injection molding body is molded to form secondary plastic body, magnet is enclosed in first chamber by the secondary plastic body
In vivo.
17. according to the method for claim 16, which is characterized in that
The accumulation in the gap between adjacent every two magnetic pole in the multiple magnetic pole is less than 0.5mm.
18. according to the method for claim 16, which is characterized in that
The rotor subject part further includes tubular shell part, intermediate barrel and the hollow bearing for passing through for shaft
Part, tubular shell part, intermediate barrel and hollow bearing part are coaxially arranged from outside to inside, and tubular shell part is in
Between barrel limit first cavity, intermediate barrel and hollow bearing part limit the second cavity,
The secondary plastic body includes first end cover part, second end cover part and connection first end cover part and second end cover
The middle interconnecting piece point divided, first end cover part, second end cover part are from the first cavity closed at both ends, and middle interconnecting piece point is filled out
The second cavity is filled,
The secondary plastic bodily form is integrally formed.
19. according to the method for claim 18, which is characterized in that
The rotor subject part further includes end housing parts, radial between tubular shell part and intermediate barrel
Extend, for limiting the first cavity,
End housing parts are provided at least one stream material mouth,
During being molded to impeller injection molding body, injected plastics material flows into the first cavity by least one described stream material mouth, and
At least one described stream material mouth is filled after the injection molding by secondary plastic body.
20. according to the method for claim 19, which is characterized in that
Impeller injection molding body further includes multiple flanks, be connected between in the second cavity barrel and hollow bearing part it
Between, and the middle interconnecting piece subpackage being formed after the injection molding is covered.
21. according to the method for claim 19, which is characterized in that
The end housing parts are multiple on the end face that it is located on the outside of the first cavity with being arranged in front of the injection molding
First fusion muscle, during the injection molding, the multiple first fusion muscle melting deformation, after the injection molding, the institute of deformation
It states multiple first fusions muscle and solidifies first end cover part with junction end housing parts and formation.
22. according to the method for claim 19, which is characterized in that
The tubular shell part has the second fusion muscle extended circumferentially over upon on its end face before the injection molding, described
During injection molding, the second fusion muscle melting deformation, after the injection molding, the second fusion muscle of deformation solidifies to combine
The second end cover part of tubular shell part and formation.
23. impeller of rotor component according to claim 18, which is characterized in that
The section of the close rotor subject part of neck portion has annular groove,
During the injection molding, injected plastics material is flowed into annular groove and near annular groove, so that the first end cover formed
Partial a part is filled into annular groove and covers annular groove.
24. method described in any one of 8-23 according to claim 1, which is characterized in that the method also includes
The iron core of annular shape is put into the first cavity before the injection molding, and is located in the inside of the magnet,
Wherein, after the injection molding, magnet and iron core are enclosed in first cavity by the secondary plastic body together,
The shape in the exterior annular face of the interior annular face iron core adjacent thereto of magnet is corresponding, the outer shape of magnet and its
The shape in the interior annular face of neighbouring tubular shell part is corresponding, and
Intermediate barrel has the multiple muscle portions for projecting radially outwardly and extending in the axial direction, and iron core has and intermediate cylinder
The corresponding multiple grooves of the shape of multiple muscle portions of shape part.
25. impeller of rotor component described in any one of 6-23 according to claim 1, which is characterized in that further include
The iron core of annular shape is put into the first cavity before the injection molding, and is located in the inside of the magnet,
Wherein, after the injection molding, magnet and iron core are enclosed in first cavity by the secondary plastic body together,
The shape in the exterior annular face of the interior annular face iron core adjacent thereto of magnet is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425612.XA CN109322851B (en) | 2018-11-27 | 2018-11-27 | Rotor impeller assembly, water pump motor comprising same and method for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425612.XA CN109322851B (en) | 2018-11-27 | 2018-11-27 | Rotor impeller assembly, water pump motor comprising same and method for manufacturing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322851A true CN109322851A (en) | 2019-02-12 |
| CN109322851B CN109322851B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811425612.XA Active CN109322851B (en) | 2018-11-27 | 2018-11-27 | Rotor impeller assembly, water pump motor comprising same and method for manufacturing same |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042366A1 (en) * | 2020-08-30 | 2022-03-03 | 大福泵业有限公司 | Micro integrated permanent magnet rotor |
| EP3919746A4 (en) * | 2019-07-25 | 2022-04-27 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electric water pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061169A (en) * | 2014-06-26 | 2014-09-24 | 常州市东南电器电机有限公司 | Electronic water pump for vehicle and impeller rotor assembly thereof |
| CN104937816A (en) * | 2013-03-15 | 2015-09-23 | 日立汽车系统株式会社 | Rotor structure and electric fluid pump |
| CN105656229A (en) * | 2014-11-11 | 2016-06-08 | 杭州三花研究院有限公司 | Electronic pump and manufacturing method thereof |
| CN106208516A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Rotor assembly and electric drive pump |
| CN106704204A (en) * | 2015-07-24 | 2017-05-24 | 浙江三花汽车零部件有限公司 | Electronic pump |
| WO2018043026A1 (en) * | 2016-08-29 | 2018-03-08 | パナソニックＩｐマネジメント株式会社 | Surface magnet type motor |
| EP3379085A1 (en) * | 2017-03-23 | 2018-09-26 | Volkswagen Aktiengesellschaft | Encapsulated and balanced outer rotor of a pump |
| CN209025880U (en) * | 2018-11-27 | 2019-06-25 | 常州雷利电机科技有限公司 | Impeller of rotor component and pump motor including it |
-
2018
- 2018-11-27 CN CN201811425612.XA patent/CN109322851B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104937816A (en) * | 2013-03-15 | 2015-09-23 | 日立汽车系统株式会社 | Rotor structure and electric fluid pump |
| CN104061169A (en) * | 2014-06-26 | 2014-09-24 | 常州市东南电器电机有限公司 | Electronic water pump for vehicle and impeller rotor assembly thereof |
| CN105656229A (en) * | 2014-11-11 | 2016-06-08 | 杭州三花研究院有限公司 | Electronic pump and manufacturing method thereof |
| CN106208516A (en) * | 2015-04-30 | 2016-12-07 | 杭州三花研究院有限公司 | Rotor assembly and electric drive pump |
| CN106704204A (en) * | 2015-07-24 | 2017-05-24 | 浙江三花汽车零部件有限公司 | Electronic pump |
| WO2018043026A1 (en) * | 2016-08-29 | 2018-03-08 | パナソニックＩｐマネジメント株式会社 | Surface magnet type motor |
| EP3379085A1 (en) * | 2017-03-23 | 2018-09-26 | Volkswagen Aktiengesellschaft | Encapsulated and balanced outer rotor of a pump |
| CN209025880U (en) * | 2018-11-27 | 2019-06-25 | 常州雷利电机科技有限公司 | Impeller of rotor component and pump motor including it |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3919746A4 (en) * | 2019-07-25 | 2022-04-27 | Zhejiang Dunan Artificial Environment Co., Ltd. | Electric water pump |
| JP2022543945A (en) * | 2019-07-25 | 2022-10-17 | 浙江盾安人工環境股▲ふん▼有限公司 | electric water pump |
| JP7307181B2 (en) | 2019-07-25 | 2023-07-11 | 浙江盾安人工環境股▲ふん▼有限公司 | electric water pump |
| WO2022042366A1 (en) * | 2020-08-30 | 2022-03-03 | 大福泵业有限公司 | Micro integrated permanent magnet rotor |
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|---|---|
| CN109322851B (en) | 2024-02-27 |
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