CN105443400B - Electronic water pump - Google Patents
Electronic water pump Download PDFInfo
- Publication number
- CN105443400B CN105443400B CN201610050672.2A CN201610050672A CN105443400B CN 105443400 B CN105443400 B CN 105443400B CN 201610050672 A CN201610050672 A CN 201610050672A CN 105443400 B CN105443400 B CN 105443400B
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- China
- Prior art keywords
- impeller
- pump
- separation sleeve
- water pump
- electronic water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000000926 separation method Methods 0.000 claims abstract description 59
- 238000004804 winding Methods 0.000 claims abstract description 37
- 230000000712 assembly Effects 0.000 claims abstract description 31
- 238000000429 assembly Methods 0.000 claims abstract description 31
- 230000005284 excitation Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 21
- 230000017525 heat dissipation Effects 0.000 claims description 13
- 229910010293 ceramic material Inorganic materials 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 2
- 230000005669 field effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 239000002826 coolant Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 229920006335 epoxy glue Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0465—Ceramic bearing designs
-
- 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
- F04D29/22—Rotors specially for centrifugal pumps
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a kind of electronic water pump, including：Motor casing, its outside are connected with drive plate assemblies；Stator winding, it is set on the inside of motor casing, and is electrically connected with drive plate assemblies, and rotating excitation field can be produced under the control of drive plate assemblies；Separation sleeve, be set on the inside of stator winding, and its it is internal there is annular chamber, the front end of separation sleeve is openend, and rear end is blind end, the central axial installation mandrel of separation sleeve；Vane rotor assembly, in annular chamber, and rotationally it can be set in outside mandrel, and including impeller and connection impeller and the rotor relative with stator winding, rotor impeller in the presence of rotating excitation field rotates；Pump cover, the openend of separation sleeve is sealedly connected on, and the pump chamber to form accommodating impeller is docked with separation sleeve, the water inlet and delivery port connected respectively with pump chamber is offered on pump cover.The electronic water pump of the present invention, axial dimension is small, simple in construction, compact, perfect heat-dissipating.
Description
Technical field
The present invention relates to water pump field, especially a kind of compact-sized electronic water pump.
Background technology
Electronic water pump is widely used in the car radiation circulatory system, and following for heat eliminating medium is provided in heat dissipation circulating system
Ring mobilization dynamic.After automobile starting, a large amount of thermal components such as engine, Electronic Control component can all produce substantial amounts of heat, and
And these caused heats must be discharged in time by heat dissipation circulating system, engine, Electronic Control component etc. is set largely to dissipate
Thermal part can within the scope of certain temperature normal work, electronic water pump be exactly cooling system heat-conducting medium circulate it is dynamic
Power source.
For the water pump of the first prior art using brush motor as power drive, brush motor and impeller are split type knot
Structure, the motor shaft of brush motor are stretched into pump chamber through pump seat, and are used to be mechanically fixed with the impeller in pump chamber and be connected, motor shaft
Sealed between pump seat using mechanical type rotating, to prevent the seepage between motor shaft and pump seat of the cooling medium in pump chamber, from
And realize that motor shaft impeller enters in closed pump chamber internal rotation, drive cooling medium from water inlet, discharged from delivery port,
Realize the flowing of cooling medium.The defects of it is present is that axial dimension is big, and the axial space occupied is big, complicated；
The water pump of second of prior art is using brushless electric machine as power drive, and brush motor is with impeller also to be split type
Structure, but motor shaft does not stretch into pump chamber, outer magnetic ring of the motor shaft installation with magnet of brushless electric machine, and the impeller in pump chamber is also pacified
Equipped with magnet, isolated between impeller and outer magnetic ring by pump seat, that is to say, that impeller is in the pump chamber that pump seat and pump cover form, outside
For magnet ring outside pump chamber, the magnet on outer magnetic ring is corresponding with the magnet on impeller, when motor shaft drives outer magnetic ring rotation, outer magnetic
Magnet on ring assemblies drives the impeller with magnet in pump chamber accordingly to rotate by magnetic, so as to realize impeller in closed pump chamber
Internal rotation, drive cooling medium to enter from water inlet, discharged from delivery port, realize the flowing of cooling medium, i.e. motor and impeller
Using magnetic couple.The defects of it is present is that axial dimension is big, and the axial space occupied is big, complicated.
The content of the invention
It is an object of the invention to provide a kind of electronic water pump, its rotor and impeller are assembled into an entirety, rotor directly by
Stator winding drives, and impeller rotates, and axial dimension is small, compact-sized.
To reach above-mentioned purpose, the present invention proposes a kind of electronic water pump, including：Motor casing, it is cylindrical in shape, its outside is connected with
Drive plate assemblies；Stator winding, it is set on the inside of motor casing, and is electrically connected with drive plate assemblies, and can be in drive plate assemblies
Control is lower to produce rotating excitation field；Separation sleeve, it is set on the inside of stator winding, and its inside has annular chamber, the front end of separation sleeve
For openend, and rear end is blind end, the central axial installation mandrel of separation sleeve；Vane rotor assembly, in annular chamber, and
Rotationally it can be set in outside mandrel, vane rotor assembly includes impeller and connection impeller and the rotor relative with stator winding,
Rotor impeller in the presence of rotating excitation field rotates；Pump cover, is sealedly connected on the openend of separation sleeve, and with separation sleeve pair
The pump chamber to form accommodating impeller is connect, the water inlet and delivery port connected respectively with pump chamber is offered on pump cover.
Electronic water pump as described above, wherein, separation sleeve includes the overcoat of tubular and is connected to the central axial of overcoat
Column supporting part, form annular chamber between overcoat and supporting part, the central axial of supporting part wears mandrel, supporting part it is outer
Side is arranged rotor, and overcoat isolates stator winding with vane rotor assembly.
Electronic water pump as described above, wherein, vane rotor assembly also includes：Adapter sleeve, it is connected with impeller, and and impeller
It is integrally formed；Positioning sleeve, it is socketed on the inside of adapter sleeve, and is set on the outside of supporting part, rotor is coated on the lateral wall of positioning sleeve
Between the madial wall of adapter sleeve.
Electronic water pump as described above, wherein, the fixed bearing inner race being made of ceramic materials, positioning sleeve on the outside of supporting part
The bearing outer ring for being made of ceramic materials and coordinating with bearing inner race is fixed in inner side, and bearing outer ring and bearing inner race form ceramic shaft
Hold.
Electronic water pump as described above, wherein, ceramic bearing is two, and is respectively the first pottery positioned at supporting part front end
Porcelain bearing and the second ceramic bearing positioned at supporting part rear end.
Electronic water pump as described above, wherein, mandrel has the external part for stretching out supporting part, and impeller and pump cover are arranged successively
Outside external part, pump cover is against impeller, by impeller axially position.
Electronic water pump as described above, wherein, the cavity between separation sleeve and vane rotor assembly is heat dissipation cavity, heat dissipation cavity
Fluid flow passageway is formed with pump chamber.
Electronic water pump as described above, wherein, pump cover is in scroll casing shape, and pump chamber is spiral case inner chamber, close to going out in spiral case inner chamber
The pressure in the region at the mouth of a river, more than the pressure close to the region of water inlet.
Electronic water pump as described above, wherein, there is filled cavity between stator winding and separation sleeve, be provided with and lead in filled cavity
Heat insulation sealant layer.
Electronic water pump as described above, wherein, ring flange, flange are sealedly connected between the leading section of motor casing and pump cover
Disk is tightly connected with separation sleeve.
The characteristics of electronic water pump of the present invention and advantage are：
1st, electronic water pump of the invention, the compound composition vane rotor assembly of impeller and rotor, vane rotor assembly is direct
Rotated by the stator winding in motor by magnetically-actuated, separation sleeve can not only isolate vane rotor assembly and stator winding, also
Directly dock to form complete water pump internal fluid channels with pump cover, have pump seat function concurrently, so as to effectively reduce electronic water pump
Axial dimension, make water pump structure simpler, compact；
2nd, electronic water pump of the invention, sets ceramic bearing, ceramic bearing is ceramic bearing on the inside of vane rotor assembly
The structure that inner ring coordinates with ceramic bearing outer ring, high temperature resistant, anticorrosion, realize non-maintaining, service life length；
3rd, electronic water pump of the invention, heat dissipation cavity internal circulation flow of the fluid between separation sleeve and vane rotor assembly,
Take away motor itself heat and drive plate assemblies caused by heat；Filled cavity filling heat conductive insulating sealing on the inside of stator winding
Glue-line, make complete machine temperature more uniform, heat-conducting effect is more preferable；The heat conductive insulating fluid sealant of embedding inside radiating bonnet, ensures to drive
The good heat radiating of dynamic board component；The heat of motor casing is delivered to, is radiated by radiating fin；So that the electronics of the present invention
Water pump has excellent heat dispersion.
Brief description of the drawings
The following drawings is only intended to, in doing schematic illustration and explanation to the present invention, not delimit the scope of the invention.Wherein：
Fig. 1 is the schematic diagram of the electronic water pump of the present invention；
Fig. 2 is the left view of electronic water pump in Fig. 1；
Fig. 3 is the right view of electronic water pump in Fig. 1；
Fig. 4 is the schematic diagram of separation sleeve in the present invention；
Fig. 5 is the left view of separation sleeve in Fig. 4；
Fig. 6 is the right view of separation sleeve in Fig. 4；
Fig. 7 is the schematic diagram of vane rotor assembly in the present invention；
Fig. 8 is sectional view of the vane rotor assembly along line A-A in Fig. 7；
Fig. 9 is the right view of vane rotor assembly in Fig. 7；
Figure 10 is the combination diagram of separation sleeve and vane rotor assembly in the present invention；
Figure 11 is the schematic diagram of middle (center) bearing inner ring of the present invention；
Figure 12 is sectional view of Figure 11 middle (center) bearings inner ring along line B-B；
Figure 13 is the schematic diagram of axis bearing outer-ring of the present invention；
Figure 14 is sectional view of Figure 13 axis bearing outer-ring along line C-C.
Main element label declaration：
The housing 12 of 1 motor casing 11 radiating bonnet
The heat conductive insulating sealant layer of 2 stator winding 20
The heat dissipation cavity of 3 separation sleeve, 31 annular chamber 311
The positioning sleeve of 32 overcoat, 33 supporting part 34
35 first thrust pads
The ostium of 4 vane rotor assembly, 41 impeller 411
The magnetic sheet of 42 rotor, 421 rotor core 422
The bearing fixing sleeve of 43 adapter sleeve, 44 positioning sleeve 45
The plain cushion of 46 second thrust pad 47
The water inlet of 5 pump cover, 51 pump chamber 52
53 delivery ports
The mandrel of 6 drive plate assemblies 7
The bearing outer ring of 8 ceramic bearing, 81 bearing inner race 82
The heat conductive insulating fluid sealant of 9 ring flange, 10 rear end cap 500
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now control illustrates this hair
Bright embodiment.
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention provides a kind of water pump, such as referred to as electronic water pump, including motor casing 1, fixed
Sub- winding 2, separation sleeve 3, vane rotor assembly 4 and pump cover 5.Motor casing 1 is cylindrical in shape, its outside connection drive plate assemblies 6；Stator
Winding 2 is set in the inner side of motor casing, and is electrically connected with drive plate assemblies 6, is produced for producing under the control of drive plate assemblies
Raw rotating excitation field；Separation sleeve 3 is set in the inner side of stator winding 2, that is, also is located in motor casing 1, and the inside of separation sleeve 3 has annular
Chamber 31, for installing rotor, the front end of separation sleeve 3 is openend, and rear end is blind end, the central axial installation of separation sleeve 3
Mandrel 7；Vane rotor assembly 4 is located in annular chamber 11, that is, in separation sleeve 3, and can rotationally be set in mandrel 7
Outside, vane rotor assembly 4 include positioned at separation sleeve 3 openend impeller 41 and connection impeller 41 and with the phase of stator winding 2
To rotor 42, rotor 42 be used in the presence of rotating excitation field impeller 41 rotate；Pump cover 5 is sealedly connected on separation sleeve 3
Openend, and the pump chamber 51 of accommodating impeller 41 is formed between the openend of separation sleeve 3 by docking, is offered on pump cover 5
The water inlet 52 and delivery port 53 connected respectively with pump chamber 51, pump cover 5 are tightly connected with separation sleeve 3, to prevent the liquid in pump chamber
Body leaks into outside motor.
The electronic water pump of the present invention, vane rotor assembly is formed using impeller and rotor are compound, vane rotor assembly is by electricity
The stator winding direct drive of machine rotates, and separation sleeve can not only isolate vane rotor assembly and stator winding, also directly and pump cover
Docking forms complete water pump internal fluid channels, has pump seat function concurrently, so as to effectively reduce the axial dimension of electronic water pump,
Make water pump structure simpler, compact, reduce water pump cost of manufacture；
Simultaneously as after impeller and rotor set are integral, the directly control of drive plate assemblies 6 or driving stator winding 2 produce
Raw rotating excitation field, the impeller 41 under the direct effect of rotating excitation field of rotor 42 rotate, and pass through motor shaft band with prior art
Dynamic outer magnetic ring component rotation, then the wheel rotation that magnet is carried in water pump is driven by magnetic by the magnet on outer magnetic ring component
Compare, reduce motor shaft, driving wheel and outer magnetic ring component for magnetic couple and the magnet being installed on impeller, due to taking
The crucial high cost parts to have disappeared on traditional structure high-protection level motor required for impeller and motor magnetic driver, no
Product axial dimension is only reduced, shortens volume, is easy to assemble and lays, and properties of product do not reduce, and significantly
Material cost is reduced, improves electric efficiency.
Wherein, motor casing includes the housing 11 of annular and is connected to the radiating bonnet 12 of the rearward end of housing 11, stator
Winding 2 is set in the inner side of housing 11, and is interference fitted with housing 11, the outer face connection drive plate assemblies 6 of radiating bonnet 12.
In addition, being also sealedly connected with ring flange 9 between the leading section of separation sleeve 3 and pump cover 5, separation sleeve 3 is pressed in by pump cover 5
On ring flange 9, separation sleeve 3 is tightly connected with ring flange 9, and is bonded with the end face of ring flange 9, to prevent the liquid of outside motor from entering
Enter stator winding.Wherein, by silicone rubber seal between housing and radiating bonnet, housing and ring flange, ring flange and separation sleeve
Circle sealing, designed due to using radial direction static seal mode, and according to IP68 degree of protection, degree of protection is high, and long-term use will not
Generation heat-conducting medium seepage, it can effectively prevent liquid by entering inside outside motor.
As Figure 1 and Figure 4, in a specific embodiment, separation sleeve 3 includes the overcoat 32 of tubular and is connected to outer
The supporting part 33 of the central axial column of set 32, overcoat 32 are for example taken the shape of the letter U, and annular chamber is formed between overcoat 32 and supporting part 33
31, the central axial of supporting part 33 wears fixed central spindle 7, and mandrel 7 is axially through supporting part 33 in other words, supporting part 33 it is outer
Side is arranged rotor 42, and overcoat 32 isolates stator winding 2 with vane rotor assembly 4.
In the present embodiment, vane rotor assembly 4 also includes the adapter sleeve 43 of annular and the positioning sleeve 44 of annular, adapter sleeve 43
It is connected with impeller 41, and is integrally formed with impeller 41；Positioning sleeve 44 is socketed in the inner side of adapter sleeve 43, and is set in outside supporting part 33
Side, rotor 42 is coated and fixed between the lateral wall of positioning sleeve 44 and the madial wall of adapter sleeve 43, it is preferred that the length of adapter sleeve 43
Degree is more than the length of rotor, and the length of separation sleeve 3 is more than the length of adapter sleeve 43.By adapter sleeve, the said structure of separation sleeve,
Can be directly compound with rotor by impeller, reduce motor shaft, driving wheel and the magnet ring for magnetic couple that existing water pump uses
Component, fit precision is set to ensure, the connection of vane rotor assembly and adapter sleeve, separation sleeve reduces intermediate connector, complete machine
Assembly process is few, the reduction of number of parts, also reduces the cost of motor.
Wherein, the magnetic sheet that rotor 42 includes rotor core 421 and is uniformly attached on the periphery wall of rotor core 421
422, it is Nian Jie firmly using epoxy glue between rotor core 421 and magnetic sheet 422.
As shown in Fig. 4, Fig. 7, Figure 10, in addition, the fixed bearing inner race 81 being made of ceramic materials in the outside of supporting part 33, axle
The structure for holding inner ring 81 refers to Figure 11, Figure 12, and the fixation of the inner side of positioning sleeve 44 is made of ceramic materials and matched somebody with somebody with bearing inner race 81
The bearing outer ring 82 of conjunction, the structure of bearing outer ring refer to Figure 13, Figure 14, and bearing outer ring 82 and bearing inner race 81 form ceramic shaft
8 are held, ceramic bearing 8 is arranged in the inner chamber of vane rotor assembly 4, for supporting rotor to rotate, bears radial load, ceramic bearing
8 by the pumped medium or working media that enter from ostium 411 as lubricant.
As shown in FIG. 10 to 14, the sliding bearing that ceramic bearing 8 coordinates for only bearing inner race 81 with bearing outer ring 82,
Ceramic bearing 8 has the advantages of high temperature resistant, corrosion and abrasion, ceramic bearing 8 is due to setting due to being all made of ceramic material
The structure that Internal and external cycle is engaged is counted into, thoroughly solves the drawbacks of prior art can not be soaked in media as well using rolling bearing, gram
The existing bearing that take to soak in media as well can not meet the drawbacks of long life requires (only 10,000 hours) again, in of the invention
Ceramic bearing service life be much larger than 40,000 hours.
The electronic water pump of the present invention is shown in Table 1 with the performance comparision of traditional water pump：
The performance comparision of the electronic water pump and traditional water pump of the present invention of table 1
Meanwhile the slip ceramic bearing that the present invention uses, it can be immersed in cooling medium and not be corroded, and can is in high temperature
It is wear-resistant in medium, motor can be made to be worked in the very big range of speeds, and be unlikely to damage the life-span of bearing, when motor height
During speed rotation, the pump capacity and lift that can make motor driven improve a lot, and have the superior function that flow is big, lift is big,
So as to reach the different performance requirement of client.
Preferably, ceramic bearing 8 is two, and is respectively be located at the front end of supporting part 33 (close to one end of impeller) first
Ceramic bearing and the second ceramic bearing positioned at the rear end of supporting part 33 (one end away from impeller).
As shown in Fig. 7, Fig. 8, Fig. 9, it is specifically, there is peace between the madial wall of adapter sleeve 43 and the lateral wall of positioning sleeve 44
Tankage, rotor 42, which is wrapped by, to be fixed in mounting groove, and the both ends of the bearing outer ring of the first ceramic bearing are resisted against positioning sleeve 44
Between one end end face and the end face of impeller 41, and it is arranged with bearing between the bearing outer ring of the first ceramic bearing and adapter sleeve 43 and consolidates
Surely 45 are covered, bearing outer ring is adhesively fixed on the madial wall of bearing fixing sleeve 45 using epoxy glue；The bearing of second ceramic bearing
Outer ring is fixed on the other end of positioning sleeve 44, and is adhesively fixed on using epoxy glue on the madial wall of positioning sleeve 44；
When making vane rotor assembly 4, by positioning sleeve 44, bearing fixing sleeve 45, rotor core 421, magnetic sheet 422, with
And bearing outer ring 82 is assembled into an entirety, then it is placed in injection mold and is molded by integrally formed impeller 41 and connection
Set 43, because the electronic water pump of the present invention reduces the motor shaft of existing water pump, driving wheel and magnet ring group for magnetic couple
The parts such as part, fit precision is improved, final assembly process is few, is easy to make and installs, and reduces cost of manufacture.
As shown in Fig. 4, Fig. 5, Fig. 6, accordingly, positioning sleeve 34, the axle of the first ceramic bearing are also arranged with outside supporting part 33
Between holding the boss that inner ring is resisted against on one end end face of positioning sleeve 34 and the lateral wall of the front end of supporting part 33, the second ceramic bearing
Bearing inner race be resisted against between the boss on the other end end face of positioning sleeve 34 and the lateral wall of the rear end of supporting part 33；
When making separation sleeve 3, mandrel 7, bearing inner race 81 and positioning sleeve 34 are placed in injection mold as embedded parts,
Mutual alignment is molded by integrally formed overcoat 32 and supporting part 33 again after determining, the separation sleeve of injection molding has isolation work
The function of medium (i.e. fluid) and electric elements, caused heat can also be isolated the working media band in set inner chamber to motor in itself
Walk.
Again as illustrated in fig. 1, it is preferred that between the blind end of the end of the bearing outer ring of the second ceramic bearing and separation sleeve 3
Provided with the first thrust pad 35, alternatively referred to as big thrust pad, the first thrust pad 35 is made up of PEEK-HPV materials, the second ceramic bearing
The end face of bearing outer ring coordinate with the first thrust pad 35, to bear the axial force between vane rotor assembly and separation sleeve and rotation
Turn frictional force.PEEK-HPV materials are a kind of special engineered materials of function admirable, and more than 260 DEG C of high temperature resistant, mechanical performance is excellent
Different, self lubricity is good, and chemicals-resistant corrosion, wearability is good, for the electronic water pump of the present invention, can use water pump
Reach non-maintaining rank in journey.
In a feasible technical scheme, mandrel 7 has the external part for stretching out supporting part 33, and impeller 41 is set in stretching
End is outer, and pump cover 5 is also set in outside external part, i.e. impeller 41 and pump cover 5 side by side or is sequentially sleeved at outside external part, and pump cover 5 supports
The outer end of impeller 41 is leaned against, by the axially position of impeller 41.
Preferably, the leading section of impeller 41 is embedded in the second thrust pad 46, alternatively referred to as small thrust pad, the second thrust pad 46 with
It can not be rotated against between impeller 41, plain cushion 47 is provided between the thrust pad 46 of pump cover 5 and second, pump cover 5 connects with the end face of plain cushion 47
Touch, limit the axial mobility of impeller 41, the second thrust pad 46 and plain cushion 47 and enter for bearing vane rotor assembly sensing pump cover
The axial force in mouth of a river direction and the rotating friction force between pump cover.Second thrust pad 46 is made of ceramic materials, plain cushion 47 by
PEEK-HPV materials are made, and the water pump of the present invention is reached non-maintaining rank in use.
As shown in figure 3, in a preferred embodiment, pump cover 5 is in scroll casing shape, and pump chamber 51 is spiral case inner chamber, in spiral case
Close to the pressure in the region (can be described as higher-pressure region) of delivery port 53 in chamber, (low pressure is can be described as more than the region close to water inlet 52
Area) pressure.
Wherein, the part in annular chamber 31 between separation sleeve 3 and vane rotor assembly 4 forms heat dissipation cavity 311, or
It is heat dissipation cavity 311 to say the cavity between separation sleeve 3 and vane rotor assembly 4, and heat dissipation cavity 311 and pump chamber 51 form fluid stream all
Road, during pump working, fluid is entered in pump chamber 51 by water inlet 52, the rotation of impeller 41, fluid is produced centrifugal motion, from
In the presence of mental and physical efforts, the runner that fluid is formed between the interior edge pump cover 5 of pump chamber 51 and separation sleeve 3 is moved, and pressure is stepped up, finally
Flowed out by delivery port 53；Due to higher-pressure region and low-pressure area be present in pump chamber, some fluid will in heat dissipation cavity internal circulation flow,
Heat caused by motor itself and drive plate assemblies is taken away, the segment fluid flow is finally also flowed out by delivery port 53.
In addition, having filled cavity between stator winding 2 and separation sleeve 3, heat conductive insulating sealant layer 20 is provided with filled cavity,
For the heat of fully export motor internal.
Again as shown in figure 1, in addition, having the accommodating cavity of accommodating drive plate assemblies 6 in radiating bonnet 12, radiate bonnet 12
Openend is provided with the rear end cap 10 of closing accommodating cavity, and radiating bonnet is also sealed with rear end cap using radial direction static seal mode, according to
IP68 degree of protection designs.To ensure the good heat radiating of drive plate assemblies, the also embedding heat conductive insulating fluid sealant in accommodating cavity
500。
Therefore, electronic water pump of the invention has interior media fluid for radiating heat and the dual work(of back end cover for motor fin radiating
Can, low ambient temperature and high medium temperature can be used for, and can is used for high environment temperature and low medium temperature occasion, meanwhile, it is fixed
Embedding heat conductive insulating fluid sealant in sub- winding, it is more beneficial for distributing motor internal heat, use temperature range is wide, in environment temperature
For -40 DEG C to 140 DEG C, medium temperature be -40 DEG C to 100 DEG C in the range of can normal use, it is dynamic to be especially suitable for mixing
Power automobile and pure electric automobile；
Electronic water pump built-in electronic commutating structure (i.e. drive plate assemblies) is additionally, since, can be real by PWM Energy Saving Controls
The stepless time adjustment of existing motor, so as to control the changes in flow rate of water pump, meets requirement.
Specifically, drive plate assemblies 6 are arranged in the radiating bonnet 12 of motor, are fastened on by screw in radiating bonnet 12
On end face.The effect of drive plate assemblies 6 is a kind of electronics commutation device, by a pcb board, a chip, six power switch
Transistor, power outlet and some other relevant electronic component composition.Wherein power tube must be with radiating bonnet
End face is separated using insulating heat-conductive silica gel piece, and heat-conducting silica gel sheet, which had both played, to be covered after heat transfer caused by power tube to radiating
Effect, play insulating effect again；
Drive plate assemblies 6 are connected with radiating bonnet 12 by three screw fastenings.Drive plate assemblies not only with outside
Power line connects, and is also connected with the stator winding (alternatively referred to as stator coil component) of motor internal, stator winding shares six groups
Enamel-cover kind of thread elements, they are formed a phase by the element of relative direction, form three-phase altogether, connect between phase and phase using star two-by-two
Method, it is connected so as to form the lead of three external connections with the power transistor in drive plate assemblies.During work, drive plate assemblies
The current signal from stator winding is received first, and the signal is by amplification and the logic control of chip program triggering power crystal
Pipe is turned on and off by certain logical requirements, so as to which external power supply is introduced into stator winding.
When mounted, the appearance that the triple line of stator winding is led to inside radiating bonnet 12 by the wire hole for the bonnet 12 that radiates
Chamber is put, and through the wire hole of drive plate assemblies 6, is then welded in drive plate assemblies 6.Drive plate assemblies 6 are consolidated by screw
It is scheduled on radiating bonnet 12, power line (or having speed governing line, diagnostics lines) then passes through outlet through the wire hole of radiating bonnet 12
The wire hole of cushion rubber, wherein outlet cushion rubber are the thick middle thin parts in a both ends, fill in the wire hole and card of radiating bonnet 12
Above.Sealing ring is housed on rear end cap 10, is fixed by screws on radiating bonnet 12, can effectively prevent liquid from entering radiating
Inside bonnet 12.
When in use, after power line is connected, drive plate assemblies 6 are started working, by controlling the logical of three-phase stator winding
Electric sequential, control stator winding produce rotating excitation field, magnetic sheet that rotating excitation field is acted on vane rotor assembly (or be magnetic
Steel), magnetic sheet impeller rotor assembly is rotated, the rotation of impeller, fluid is produced centrifugal motion, in centrifugal force
Under effect, the runner that fluid is formed along pump cover with separation sleeve is moved, and pressure is stepped up, and is finally flowed out by delivery port, fluid
Flow direction refers to the arrow in Fig. 3.Due to the presence of height nip in pump chamber, fluid will be total with vane rotor in separation sleeve
The heat dissipation cavity being shaped as circulates, take away motor itself heat and drive plate assemblies caused by heat；Heat conductive insulating seals
The addition of glue-line, make complete machine temperature more uniform, heat-conducting effect is more preferable；The heat of motor casing is delivered to, by motor casing
Radiating fin is radiated.
The schematical embodiment of the present invention is the foregoing is only, is not limited to the scope of the present invention.It is any
Those skilled in the art, the equivalent variations made on the premise of the design of the present invention and principle is not departed from and modification, all should
Belong to the scope of protection of the invention.And it should be noted that the present invention each part be not limited in above-mentioned entirety should
With, each technical characteristic described in specification of the invention can according to be actually needed selection one individually use or select it is multinomial
Combine use, and therefore, the present invention covers the other combinations relevant with this case inventive point and concrete application in the nature of things.
Claims (7)
1. a kind of electronic water pump, it is characterised in that the electronic water pump includes：
Motor casing, it is cylindrical in shape, its outside is connected with drive plate assemblies；
Stator winding, it is set on the inside of the motor casing, and is electrically connected with the drive plate assemblies, and can be in the driving plate group
Rotating excitation field is produced under the control of part；
Separation sleeve, it is set on the inside of the stator winding, and its inside has annular chamber, the front end of the separation sleeve is opening
End, and rear end is blind end, the central axial installation mandrel of the separation sleeve；
Vane rotor assembly, in the annular chamber, and can rotationally it be set in outside the mandrel, the vane rotor assembly
Including impeller and the impeller and the rotor relative with the stator winding are connected, the rotor is in the rotating excitation field
Effect is lower to drive the wheel rotation；
Pump cover, the openend of the separation sleeve is sealedly connected on, and the pump to form the accommodating impeller is docked with the separation sleeve
Chamber, the water inlet and delivery port connected respectively with the pump chamber is offered on the pump cover；
The separation sleeve includes the overcoat of tubular and is connected to the supporting part of the central axial column of the overcoat, described
The annular chamber is formed between overcoat and the supporting part, the central axial of the supporting part wears the mandrel, the support
The rotor is arranged on the outside of portion, the overcoat isolates the stator winding with the vane rotor assembly, the overcoat and
The supporting part that the mandrel is hidden in inside is integrated injection molding structure；
The vane rotor assembly also includes：
Adapter sleeve, it is connected with the impeller, and is integrally formed with the impeller；
Positioning sleeve, it is socketed on the inside of the adapter sleeve, and is set on the outside of the supporting part, the rotor is coated on the positioning
Between the madial wall of the lateral wall of set and the adapter sleeve；
The fixed bearing inner race being made of ceramic materials on the outside of the supporting part, the positioning sleeve inner side are fixed by ceramic material system
Into and with the bearing outer ring that coordinates of the bearing inner race, the bearing outer ring and the bearing inner race form ceramic bearing.
2. electronic water pump as claimed in claim 1, it is characterised in that the ceramic bearing is two, and is respectively to be located at institute
State the first ceramic bearing of supporting part front end and the second ceramic bearing positioned at the supporting part rear end.
3. electronic water pump as claimed in claim 1, it is characterised in that the mandrel has the stretching for stretching out the supporting part
End, the impeller and the pump cover are sequentially sleeved at outside the external part, and the pump cover is against the impeller, by the impeller axle
To positioning.
4. the electronic water pump as described in any one of claims 1 to 3, it is characterised in that the separation sleeve and the vane rotor
Cavity between assembly is heat dissipation cavity, and the heat dissipation cavity and the pump chamber form fluid flow passageway.
5. the electronic water pump as described in any one of claims 1 to 3, it is characterised in that the pump cover is in scroll casing shape, the pump chamber
For spiral case inner chamber, close to the pressure in the region of the delivery port in the spiral case inner chamber, more than close to the region of the water inlet
Pressure.
6. the electronic water pump as described in any one of claims 1 to 3, it is characterised in that the stator winding and the separation sleeve
Between there is filled cavity, is provided with heat conductive insulating sealant layer in the filled cavity.
7. the electronic water pump as described in any one of claims 1 to 3, it is characterised in that the leading section of the motor casing with it is described
Ring flange is sealedly connected between pump cover, the ring flange is tightly connected with the separation sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050672.2A CN105443400B (en) | 2016-01-26 | 2016-01-26 | Electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050672.2A CN105443400B (en) | 2016-01-26 | 2016-01-26 | Electronic water pump |
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| CN105443400A CN105443400A (en) | 2016-03-30 |
| CN105443400B true CN105443400B (en) | 2018-02-16 |
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| CN201610050672.2A Active CN105443400B (en) | 2016-01-26 | 2016-01-26 | Electronic water pump |
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| CN105822471A (en) * | 2016-05-20 | 2016-08-03 | 阜新德尔汽车部件股份有限公司 | Electric liquid pump for automobile starting and stopping system |
| CN106194988B (en) * | 2016-08-30 | 2018-09-28 | 珠海市静润科技有限公司 | Big L/D ratio high-precision bearing and manufacturing method and water pump rotor and manufacturing method |
| CN107370290A (en) * | 2017-08-15 | 2017-11-21 | 华域汽车电动***有限公司 | A kind of electric machine structure in injection molding type electronic water pump |
| CN110067755A (en) * | 2018-01-24 | 2019-07-30 | 无锡盛邦电子有限公司 | A kind of novel electronic water pump |
| DE102018104015A1 (en) | 2018-02-22 | 2019-08-22 | Nidec Gpm Gmbh | Coolant pump with optimized bearing arrangement and improved heat balance |
| CN110195706A (en) * | 2018-02-25 | 2019-09-03 | 常州迪卡奔机电有限公司 | A kind of electronic water pump to be radiated using itself medium |
| CN108661920A (en) * | 2018-03-02 | 2018-10-16 | 安徽达来电机有限公司 | Electronic water pump |
| CN108167200B (en) * | 2018-03-20 | 2024-02-27 | 苏州玲珑汽车科技有限公司 | Electronic water pump with active cooling channel |
| CN108757578A (en) * | 2018-04-24 | 2018-11-06 | 珠海万伏科技有限公司 | Heat radiating type electronic water pump |
| CN108980063A (en) * | 2018-07-30 | 2018-12-11 | 安徽达来电机有限公司 | A kind of electronic water pump |
| CN109469649A (en) * | 2018-11-19 | 2019-03-15 | 上海幸福摩托车有限公司 | A kind of automotive electronics cooling water pump of high-efficient low-noise |
| CN110080990A (en) * | 2019-04-11 | 2019-08-02 | 浙江科力车辆控制***有限公司 | A kind of electronic water pump |
| CN110159548B (en) * | 2019-06-13 | 2024-02-20 | 广东骏驰科技股份有限公司 | Electric centrifugal pump |
| CN110529226A (en) * | 2019-08-27 | 2019-12-03 | 汉宇集团股份有限公司 | A kind of electronic water pump for automobile of internal liquid cooling |
| CN113653556B (en) * | 2021-10-21 | 2021-12-28 | 威晟汽车科技(宁波)有限公司 | Electronic water pump device of automobile |
| CN116378969B (en) * | 2023-04-28 | 2023-11-10 | 斯坦迪汽车科技(苏州)有限公司 | Electronic water pump |
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| GB2418072B (en) * | 2004-09-14 | 2008-05-07 | Dana Automotive Ltd | Pump assembly |
| US20070252487A1 (en) * | 2006-04-28 | 2007-11-01 | Nidec Corporation | Motor and pump having magnetic sensor, connecting method between circuit board having magnetic sensor and stator, and manufacturing method of motor and pump |
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Denomination of invention: Electronic water pump Granted publication date: 20180216 Pledgee: Bank of China Limited by Share Ltd. Cangzhou branch Pledgor: HEBEI SHENHAI ELECTRICAL APPLIANCES CO.,LTD. Registration number: Y2024980020223 |