A kind of brushless electronic water pump
Technical field
The utility model is related to a kind of electronic water pump, more particularly to a kind of brushless electronic water pump.
Background technology
Current electronic water pump includes motor stator and rotor, and armature spindle is connected on the outer steel of water pump, water pump
Interior magnet steel be put into outer steel, be connected with impeller on interior magnet steel, the motor stator and electronics rotor of this electronic water pump coordinate,
Outer steel and interior magnet steel coordinate, so as to complete the driving rotation of impeller.It is exactly two kinds of motor and water pump that this structure is actual
Simple superposition, its cost is high, and volume is big, and conversion efficiency is low.
A kind of Patent No. ZL 201410425454.3 electronic water pump discloses the water pump of another structure, including outer
Space in electronic water pump is separated into accommodating cavity and fluid cavity by housing, separation sleeve, stator component, rotor part, separation sleeve, is turned
Subassembly includes rotor core, blade injection molding body, rotating shaft, the rotating shaft top and bottom of rotor part and is required to be rotatablely installed in the
On one bearing and second bearing, and clutch shaft bearing is installed on support base, and support base is installed on support, this mounting means
Have the following disadvantages:1. being provided with support base and support, so as to occupy into hydrospace, decreased influent flow is caused;2. first axle
Hold and be arranged on support base, and around support base be all the time the liquid of flowing, although can be coordinated using sealing and be isolated,
But it is due to that rotor assembly is to rotate all the time, therefore sealing reliability is very low, clutch shaft bearing may be immersed in water all the time,
Time one, long clutch shaft bearing was got rusty easily, and such clutch shaft bearing just rotates not freely, and the rotational resistance increase of rotor assembly, efficiency is got over
Come lower, in addition can because excessive wear and caused by electronic water pump damage phenomenon occur.3. rotor part rotates in high speed, can be right
Support base and support produce certain impact, in use, electronic water pump jolts in one all the time especially on automobile
Environment in, therefore it is required that support base and support are more firm, and support and support base typically use plastic material, and need
Liquid is facilitated to flow through, therefore, its position and structure installed limits its structure and insecure in itself, and support is some
Rod-like structure supports support base, so that the reliability of electronic water pump is low, service life shortens;The blade injection molding body of 4 patents
For unenclosed construction, i.e. the blade of blade injection molding body is in first shell body, what liquid was rotated after entering in first shell body
Blade fluctuation is from outlet export, and its discharge pressure is small, and water yield is small.The radiating effect of 5 this electronic water pumps is excessively poor, due to
Pcb board, which is installed in second shell body and uniquely relies on one piece of heat-dissipating aluminium plate, to be radiated, and derived heat is still in second shell
In vivo, therefore temperature is high during electronic water pump work, the normal work of pcb board is influenceed.
Utility model content
Technical problem to be solved in the utility model is:A kind of brushless electronic water pump is provided, the brushless electronic water pump
Rotor need not set bearing, and be not take up into hydrospace, improve the reliability of brushless electronic water pump, extend its service life.
In order to solve the above technical problems, the technical solution of the utility model is:A kind of brushless electronic water pump, including it is detachable
Fixed shell body, separation sleeve and upper lid, constitutes installation chamber between the separation sleeve and shell body, the separation sleeve with it is upper
Fluid chamber is constituted between lid, the fluid chamber and installation chamber are separate, and stator is fixed with the installation cavity room
It is rotatablely equipped with the rotor assembly coordinated with field frame assembly, the upper lid and is provided with assembly and pcb board, the fluid chamber
Water inlet and delivery port, the rotor assembly include impeller and are arranged at the connecting cylinder of wheel bottom, the endoporus of the connecting cylinder
Interior concentric insertion is fixed with wear-resisting lubrication inserts, what the endoporus being provided with the wear-resisting lubrication inserts with connecting cylinder was arranged concentrically
Centre bore, the external concentric suit of the connecting cylinder is fixed with yoke cylinder, and the external concentric suit of yoke cylinder is fixed with magnet ring cylinder,
Centre of location axle is provided with the separation sleeve, the centre of location axle is inserted in the centre bore, is set on the shell body
Have and lead hot linked heat abstractor with pcb board.
As a kind of preferred scheme, the connecting cylinder includes the big footpath cylinder section for being connected with each other and being arranged concentrically and path cylinder
Section, one end of the big footpath cylinder section is fixedly connected with wheel bottom, one end of the path cylinder section and the other end of large-diameter pipe section
It is connected, the other end, which is provided with reinforcement connecting plate, the reinforcement connecting plate, is provided with the embedding hole of reinforcement, the yoke cylinder and magnet ring cylinder
Suit is fixed on path pipeline section and the external diameter of magnet ring cylinder is equal with the external diameter of big footpath cylinder section, and the end of the magnet ring tin is set
It is equipped with the embedded convex pin of insertion strengthened in embedding hole.
As a kind of preferred scheme, be provided with the endoporus of the connecting cylinder at least one convex platform for inwardly protruding out and
At least one lower convex platform, corresponding, the upper end of the wear-resisting lubrication inserts is provided with the upper breach with convex platform corresponding matching, institute
The lower end for stating wear-resisting lubrication inserts is provided with lower breach with lower convex platform corresponding matching.
As a kind of preferred scheme, at least one axial notch is provided with the centre bore of the wear-resisting lubrication inserts,
The axial notch is axially through the centre bore, and the upper surface and lower surface of the wear-resisting lubrication inserts are respectively arranged with axial direction
The top and bottom of groove connected upper diversion groove and lower diversion groove.
As a kind of preferred scheme, the lower surface of the wear-resisting lubrication inserts is higher than the lower surface of connecting cylinder, described resistance to
Tribology is slided in the fluid chamber constituted between the lower surface of inserts and the endoporus of connecting cylinder on inserting chamber, the separation sleeve and set
There is the inserting for inserting the inserting intracavitary raised, underlay is provided between the raised upper end of inserting and wear-resisting lubrication inserts
Circle, impurity accommodating chamber is provided between the bottom of the fluid chamber and reinforcement connecting plate.
As a kind of preferred scheme, the field frame assembly includes iron core and is wrapped in iron core and is matched with core configuration
Stator winding is wound with insulator, the insulator, the upper end of the insulator is provided with the extension of several circumference uniform distributions
Coiling breach is provided between ear, the upper surface of the hangers and insulator, the lower end of the insulator, which is set, also has inserting embedding
Being set on pin, corresponding pcb board also has and inserts the embedding hole of fixation that the inserting of embedding pin coordinates, the lower end of the iron core be provided with
The ground terminal of pcb board connection.
As a kind of preferred scheme, convenient and automatic coil winding machine location fit is provided with the upper surface of the insulator
Positioning recess, the bottom of insulator is provided with the embedding mouth of the threading for facilitating stator winding to pass through.
As a kind of preferred scheme, the heat abstractor includes radiating seat, sealing ring, heat-conducting pad and heat conduction tabletting,
The bottom of the shell body is provided with installation through-hole, and the heat conduction tabletting is arranged inside shell body, and the radiating seat is arranged at
The outside of shell body and fastener is fixed and compresses the heat-conducting pad between heat conduction tabletting, the sealing ring is installed on scattered
Between the bottom of hot seat and shell body, heat-conducting glue is provided between the heat conduction tabletting and pcb board.
As a kind of preferred scheme, the radiating seat includes the radiating bottom plate of camber and is arranged at radiating bottom plate bottom
Radiating fin, embedded projection is provided with the radiating bottom plate, the bottom of the heat conduction tabletting is provided with screw hole column, described embedding
Enter to be provided with the screw hole column groove of screw hole column matching in projection, the ring set is described embedded raised in embedded projection
Fill in the installation through-hole and fixed with heat conduction tabletting screw, the bottom of the shell body is provided with waterproof vent valve.
As a kind of preferred scheme, the impeller includes lower impeller halfbody and upper impeller halfbody, the lower impeller halfbody
It is integrally formed, is provided with the upper surface of the lower impeller halfbody on several blade grooves, each blade groove with the connecting cylinder
It is provided with least one mortise, the lower surface of upper leaf wheel halfbody and is provided with several and the one-to-one leaf of blade groove
Be provided with piece, the blade with the one-to-one tenon of mortise, be provided with intake tunnel on upper leaf wheel halfbody.
Employ after above-mentioned technical proposal, effect of the present utility model is:Because the rotor assembly includes impeller and sets
It is placed in the connecting cylinder of wheel bottom, the endoporus of the connecting cylinder insertion with one heart and is fixed with wear-resisting lubrication inserts, the resistance to tribology
The centre bore being arranged concentrically with the endoporus of connecting cylinder is provided with sliding inserts, the external concentric suit of the connecting cylinder is fixed with magnetic
Yoke cylinder, the external concentric suit of yoke cylinder, which is fixed with magnet ring cylinder, the separation sleeve, is provided with centre of location axle, in the positioning
Heart axle is inserted in the centre bore, is provided with the shell body and is led hot linked heat abstractor with pcb board, therefore, the rotor
Assembly is directly sleeved on centre of location axle using the centre bore of wear-resisting lubrication inserts and realizes rotation, without in water inlet
Support and bearing are set, the inflow of water inlet is improved, it also avoid bearing rust or lubrication failure, so that rotor assembly
All the time smoothly rotate, rotational resistance is small, water outlet efficiency high, the reliability of electronic water pump is higher, and service life is longer.And rotor
Yoke cylinder is provided with assembly, the magnetic line of force that constraint induction coil is produced outwards is dissipated, and beam of magnetic line of force is concentrated on induction coil
Around, and magnetic screening action is played, which also improves the efficiency of electromagnetic conversion.
Again due to the connecting cylinder includes interconnection and is arranged concentrically big footpath cylinder section and path cylinder section, the big footpath cylinder
One end of section is fixedly connected with wheel bottom, and one end of the path cylinder section is connected with the other end of large-diameter pipe section, and the other end is set
It is equipped with reinforcement connecting plate, the reinforcement connecting plate and is provided with the embedding hole of reinforcement, yoke cylinder and magnet ring the cylinder suit is fixed on
On path pipeline section and external diameter and big footpath the cylinder section of magnet ring cylinder external diameter it is equal, and magnet ring cylinder end be provided with it is embedded described in
Strengthen the convex pin of insertion in embedding hole, the reinforcement connecting plate of the connecting cylinder can be more firm with the fixation of yoke cylinder and magnet ring cylinder, and
And using the cooperation in embedded convex pin and the embedding hole of reinforcement, whole rotor assembly magnet ring cylinder during high speed rotates is not occurred
Position is offset, and makes the reliability of electronic water pump higher.
Again due to be provided with the endoporus of the connecting cylinder at least one convex platform inwardly protruded out and at least one under it is convex
Platform, corresponding, the upper end of the wear-resisting lubrication inserts is provided with the upper breach with convex platform corresponding matching, and the wear-resisting lubrication is embedding
The lower end of part is provided with the lower breach with lower convex platform corresponding matching, and the structure can improve wear-resisting lubrication inserts and connecting cylinder endoporus
Between firmness, it is to avoid rotate skew between wear-resisting lubrication inserts and connecting cylinder.Wear-resisting lubrication inserts is typically used
Graphite material is made.
Again due to being provided with least one axial notch, the axial notch axle in the centre bore of the wear-resisting lubrication inserts
To centre bore described in insertion, the upper surface and lower surface of the wear-resisting lubrication inserts are respectively arranged with the upper end of axial notch with
End connected upper diversion groove and lower diversion groove, carbon dust and other fine impurities that rotor assembly can be produced when rotating at a high speed
It can be entered from upper diversion groove in axial notch, it is to avoid space deficiency is caused by between rotor assembly and centre of location axle
The bad situation of operating occurs.
Again because the lower surface of the wear-resisting lubrication inserts is higher than under the lower surface of connecting cylinder, the wear-resisting lubrication inserts
Constituted between end face and the endoporus of connecting cylinder and the insertion inserting is provided with the fluid chamber on inserting chamber, the separation sleeve
The inserting of intracavitary is raised, and lower gasket, the fluid chamber are provided between the raised upper end of inserting and wear-resisting lubrication inserts
Bottom and strengthen connecting plate between be provided with impurity accommodating chamber, the inserting projection can directly with it is wear-resisting lubrication inserts positioning match somebody with somebody
Close, rotor assembly rotation is more smooth, also, impurity accommodating chamber can accommodate impurity, and the water finally flowed can be by impurity accommodating chamber
In impurity take out of.
It is described exhausted again because the field frame assembly includes iron core and the insulator for being wrapped in iron core and being matched with core configuration
Be wound with stator winding on edge body, the upper end of the insulator is provided with the hangers of several circumference uniform distributions, the hangers with
Coiling breach is provided between the upper surface of insulator, the lower end of the insulator, which is set, also the embedding pin of inserting, corresponding pcb board
Upper setting also has with inserting the embedding hole of fixation that embedding pin inserting coordinates, and the lower end of the iron core is provided with the ground connection being connected with pcb board
Terminal.Due to the setting of insulator, therefore, stator winding is more prone to winding, it is to avoid the line shelling of positioning winding is damaged, and is inserted
Embedding pin facilitates PCB and insulator to fix, and ground terminal is directly connected with PCB, prevents electric components from burning out, and hangers side
Just contacted with shell body, it is ensured that the mounting distance of other parts.
Again due to being provided with the convenient positioning recess with automatic coil winding machine location fit on the upper surface of the insulator, absolutely
The bottom of edge body is provided with the embedding mouth of the threading for facilitating stator winding to pass through, and the positioning recess can facilitate field frame assembly can be automatic
Automatic winding on coil winding machine, and conveniently line end is fixed for threading breach.
Again because the heat abstractor includes radiating seat, sealing ring, heat-conducting pad and heat conduction tabletting, the bottom of the shell body
Portion is provided with installation through-hole, and the heat conduction tabletting is arranged inside shell body, the radiating seat be arranged at the outside of shell body and
Fastener is fixed and compresses the heat-conducting pad between heat conduction tabletting, and the sealing ring is installed on radiating seat and shell body
Between bottom, heat-conducting glue is provided between the heat conduction tabletting and pcb board, rationally, radiating seat is arranged on the construction for heat radiating device
The outside of shell body, the heat that PCB is produced is directly conducted on the radiating seat of outside, so as to improve radiating effect, it is ensured that PCB
Plate works at a lower temperature all the time, it is ensured that the stability of electric elements.
Again because the radiating seat includes the radiating bottom plate of camber and is arranged at the radiating fin of radiating bottom plate bottom, institute
State and embedded projection is provided with radiating bottom plate, the bottom of the heat conduction tabletting, which is provided with screw hole column, the embedded projection, to be set
There is the screw hole column groove that screw hole column is matched, the ring set is in embedded projection, and the embedded projection fills in the installation
Fix in through hole and with heat conduction tabletting screw, the bottom of the shell body is provided with waterproof vent valve, and the installation of the radiating seat is non-
Chang Heli, heat conduction and sealing effectiveness are relatively good, and can improve using waterproof vent valve the air permeable effect of shell body.
Again because the impeller includes lower impeller halfbody and upper impeller halfbody, the lower impeller halfbody and the connecting cylinder one
It is body formed, it is provided with the upper surface of the lower impeller halfbody on several blade grooves, each blade groove and is provided with least one
It is provided with several and the one-to-one blade of blade groove, the blade and sets on mortise, the lower surface of upper leaf wheel halfbody
Be equipped with the one-to-one tenon of mortise, be provided with upper leaf wheel halfbody on intake tunnel, upper leaf wheel halfbody and set
There is intake tunnel, the impeller uses enclosed structure, water is entered in intake tunnel from water inlet, upper impeller halfbody and inferior lobe
Wheel halfbody makes blade into closed, and such discharge pressure is higher, and the effective power of electronic water pump is bigger.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the stereogram of the utility model embodiment;
Fig. 2 is the front schematic view of the utility model embodiment;
Fig. 3 is sectional views of the Fig. 2 at A-A;
Fig. 4 is the explosive view of a part of parts of the utility model electronic water pump;
Fig. 5 is the explosive view of another part of the utility model electronic water pump;
Fig. 6 is the front view of the utility model field frame assembly and shell body;
Fig. 7 is sectional views of the Fig. 6 at B-B;
Fig. 8 is the stereogram of field frame assembly;
Fig. 9 is the front schematic view of rotor assembly and separation sleeve;
Figure 10 is sectional views of the Fig. 9 at C-C;
Figure 11 is the exploded perspective view of rotor assembly;
Figure 12 is another exploded perspective view of rotor assembly;
In accompanying drawing:1. shell body;101 waterproof vent valves;102. plug;103. connection terminal;2. on cover;201. water inlet
Mouthful;202. delivery port;3. heat abstractor;301. radiating seat;3011. radiating bottom plate;3012. radiating fin;3013. insertion is convex
Rise;3014. screw hole column groove;302. sealing ring;303. heat-conducting pad;304. heat conduction tablettings;3041. screw hole column;4. stator is total
Into;401. insulator;4011. hangers;4012. coiling breach;4013. positioning recess;The 4014. embedding pin of inserting;4015. threading is embedding
Mouthful;402. iron core;4021. ground terminal;5. rotor assembly;501. impeller;Impeller halfbody on 5011.;50111. blade;
50112. tenon;50113. intake tunnel;5012. times impeller halfbodies;50121. blade groove;50122. mortise;502. connecting cylinder;
5021. big footpath cylinder sections;5022. paths cylinder section;5023. convex platform;5024. lower convex platform;503. strengthen connecting plate;504. strengthen embedding
Hole;505. wear-resisting lubrication inserts;5051. centre bore;5052. axial notch;5053. upper diversion groove;5054. upper breach;
5055. lower breach;5056. lower diversion groove;506. yokes cylinder;507. magnet rings cylinder;The 5071. convex pin of insertion;6.PCB plates;7. every
From set;701. centre of location axles;702. water conservancy diversion plate portions;703. blind set portions;704. insertings are raised;705. impurity accommodating chambers;706.
Fluid chamber;8. on sealing ring;9. circlip;10. upper gasket;11. lower gasket.
Embodiment
The utility model is described in further detail below by specific embodiment.
Orientation up and down in the present embodiment is to determine electronic water pump according to Fig. 2 putting position.
As shown in Figures 1 to 12, a kind of brushless electronic water pump, including be detachably fixed shell body 1, separation sleeve 7 and on
Lid 2, the shell body 1 is cylindrical shape, and the bottom of shell body 1 is provided with installation through-hole, for installing heat abstractor 3, shell body 1
Bottom be additionally provided with waterproof vent valve 101, waterproof effect is realized while air permeable effect for increasing.Set on the upper lid 2
Water inlet 201 and delivery port 202 are equipped with, is sealed between upper lid 2 and separation sleeve 7 by upper sealing ring 8, separation sleeve 7 and shell body 1
Between also sealing coordinate.Screw is fixed between upper lid 2, separation sleeve 7 and shell body 1, structure between the separation sleeve 7 and shell body 1
Into installation chamber, fluid chamber 706, the fluid chamber 706 and installation cavity are constituted between the separation sleeve 7 and upper lid 2
Room is separate, and liquid is flowed in fluid chamber 706, is kept apart with the electric elements in installation cavity room by separation sleeve 7,
Avoid internal electric elements contact liq.
As shown in Fig. 4 and Figure 10, the separation sleeve 7 includes blind set portion 703 and is arranged at the deflector of the blind top of set portion 703
The guide groove for facilitating guiding fluid delivery port 202 is provided with portion 702, water conservancy diversion plate portion 702, the fluid chamber 706 is arranged at
In blind set portion 703, centre of location axle 701 is provided with blind set portion 703, the bottom of fluid chamber 706 is provided with inserting projection
704, centre of location axle 701 is fixed in inserting projection 704, and the separation sleeve 7 is formed in one setting, using plastic material system
Into.
It is fixed with field frame assembly 4 and pcb board 6, the fluid chamber 706 and is rotatablely equipped with determining in the installation cavity room
The rotor assembly 5 that sub- assembly 4 coordinates.
As shown in Fig. 4, Fig. 9, Figure 10, Figure 11 and Figure 12, the rotor assembly 5 includes impeller 501 and is arranged at impeller 501
It is embedded with one heart in the connecting cylinder 502 of bottom, the endoporus of the connecting cylinder 502 to be fixed with wear-resisting lubrication inserts 505, the resistance to tribology
The centre bore 5051 being arranged concentrically with the endoporus of connecting cylinder 502 is provided with sliding inserts 505, the outside of the connecting cylinder 502 is same
Heart suit is fixed with yoke cylinder 506, and the external concentric suit of yoke cylinder 506, which is fixed with magnet ring cylinder 507, the separation sleeve 7, to be set
Centre of location axle 701 is equipped with, the centre of location axle 701 is inserted in the centre bore 5051, realizes the rotation peace of rotor assembly 5
It is provided with dress, the shell body 1 and leads hot linked heat abstractor 3 with pcb board 6.
The impeller 501 includes lower impeller halfbody 5012 and upper impeller halfbody 5011, the lower impeller halfbody 5012 and institute
State connecting cylinder 502 to be integrally formed, be provided with several blade grooves 50121 on the upper surface of the lower impeller halfbody 5012, each
At least one mortise 50122 is provided with blade groove 50121, it is preferred that be provided with the present embodiment on each blade groove 50121
It is one-to-one with blade groove 50121 that several are provided with three mortises 50122, the lower surface of upper leaf wheel halfbody 5011
It is provided with blade 50111, the blade 50111 and the one-to-one tenon of mortise 50,122 50112, upper leaf wheel halfbody
Intake tunnel 50113 is provided with 5011, upper impeller halfbody 5011 and lower impeller halfbody 5012 pass through tenon 50112 and mortise
50122 realize that joggle is fixed.The impeller 501 is enclosed impeller, can produce water outlet pressure under bigger discharge pressure, same rotating speed
Power is bigger, and water yield is more, and water outlet is more efficient.
The connecting cylinder 502 includes the big footpath cylinder section 5021 for being connected with each other and being arranged concentrically and path cylinder section 5022, described
One end of big footpath cylinder section 5021 is fixedly connected with the bottom of impeller 501, and the other end of the path cylinder section 5022 is provided with reinforcement and connected
The embedding hole 504 of reinforcement is provided with fishplate bar 503, the reinforcement connecting plate 503, connecting cylinder 502 and lower impeller halfbody 5012 are generally
It is integrally formed, its material is plastic material.
As is illustrated by figs. 11 and 12, yoke cylinder 506 and magnet ring the cylinder 507 suit is fixed on path pipeline section and magnet ring
The external diameter of cylinder 507 is equal with the external diameter of big footpath cylinder section 5021, the peripheral dimension one of so whole magnet ring cylinder 507 and large-diameter pipe section
Cause, be easily installed in separation sleeve 7.It is convex that the end of the magnet ring cylinder 507 is provided with the embedded insertion strengthened in embedding hole 504
In pin 5071, the present embodiment, the bottom of magnet ring cylinder 507 is provided with embedded convex pin 5071, embedded to strengthen in embedding hole 504, magnet ring
The upper end of cylinder 507 is equally also provided with being embedded in convex pin 5071, and the bottom of large-diameter pipe section is provided with and the convex pin of the insertion
The embedding mouth of reinforcement of 5071 matchings.
Again as shown in Figure 10, at least one convex platform 5023 inwardly protruded out is provided with the endoporus of the connecting cylinder 502
With at least one lower convex platform 5024, convex platform 5023 and the quantity of lower convex platform 5024 preferably are arranged for multiple and even circumferential,
Corresponding, the upper end of the wear-resisting lubrication inserts 505 is provided with the upper breach 5054 with the corresponding matching of convex platform 5023, described resistance to
The lower end of tribology cunning inserts 505 is provided with the lower breach 5055 with the corresponding matching of lower convex platform 5024.So, wear-resisting lubrication inserts
Dislocation is not susceptible between 505 and connecting cylinder 502.Wear-resisting lubrication inserts 505 is made of graphite material, and the wear-resisting lubrication is embedding
It is provided with least one axial notch 5052 in the centre bore 5051 of part 505, the axial notch 5052 is axially through in described
In heart hole 5051, the present embodiment, the quantity of axial notch 5052 is three, and the upper surface of the wear-resisting lubrication inserts 505 is with
End face is respectively arranged with the upper diversion groove 5053 and lower diversion groove 5056 that the top and bottom of axial notch 5052 are connected.On
Diversion groove 5053 and lower diversion groove 5056 facilitate impurity to enter in axial notch 5052, it is to avoid impurity enters centre bore
Rotor assembly 55 is caused to rotate between 5051 and the mating surface of centre of location axle 701 not smooth.Certainly, impurity is also convenient for stream
Dynamic water channel outflow.
As shown in figs. 3 and 10, the lower surface of the wear-resisting lubrication inserts 505 is higher than the lower surface of connecting cylinder 502, described
The fluid on inserting chamber, the separation sleeve 7 is constituted between the lower surface of wear-resisting lubrication inserts 505 and the endoporus of connecting cylinder 502
The inserting projection 704 for inserting the inserting intracavitary, the upper end of the inserting projection 704 and wear-resisting lubrication are provided with chamber 706
Lower gasket 11 is provided between inserts 505, impurity is provided between the bottom of the fluid chamber 706 and reinforcement connecting plate 503
Accommodating chamber 705.Upper gasket 10 and circlip 9 are installed, limitation rotor is total between lower impeller body 5012 and centre of location axle 701
Into 55 axial float.
Overall above-mentioned rotor assembly 55 is to realize to be integrally formed by the way of injection, wherein upper impeller body 5011 is single
Type is alone become, upper impeller body 5011, lower impeller body 5012 and connecting cylinder 502 are plastic material, and magnet ring cylinder 507 is using bonding neodymium
Iron boron, note is put into lower impeller body 5012, the injection moulding process of connecting cylinder 502 by yoke cylinder 506 and wear-resisting lubrication inserts 505
In mould, while by Agglutinate neodymium-iron-boron powder compacting magnet ring cylinder 507.
As shown in Fig. 3, Fig. 4, Fig. 6, Fig. 7 and Fig. 8, the field frame assembly 4 include iron core 402 and be wrapped in iron core 402 and
With the insulator 401 of the form fit of iron core 402, be wound with stator winding, figure on the insulator 401 eliminate stator around
Group, the upper end of the insulator 401 is provided with the hangers 4011 of several circumference uniform distributions, the hangers 4011 and insulator
Coiling breach 4012 is provided between 401 upper surface, the hangers 4011 is the hangers 4011 of L-type, the hangers 4011 it is convenient with
The upper end of shell body 1 coordinates, and the convenient spacing for determining each part.The lower end of the insulator 401, which is set, also inserting
Being set on embedding pin 4014, corresponding pcb board 6 also has with inserting the embedding hole of fixation that the embedding inserting of pin 4014 coordinates, the iron core 402
Lower end is provided with the ground terminal 4021 being connected with pcb board 6.Connection terminal 103 on the plug 102 of the bottom of shell body 1 is inserted
Enter on pcb board 6 and to be electrically connected with pcb board 6.Iron core 402 forms for silicon steel sheet is superposed.Wrapped in the injection moulding process of insulator 401
The salient pole of the whole iron core 402 of cloth-wrapper.
The convenient positioning recess 4013 with automatic coil winding machine location fit is provided with the upper surface of the insulator 401,
The quantity of positioning recess 4013 is three and circumference uniform distribution, and the bottom of insulator 401, which is provided with, facilitates what stator winding was passed through
The embedding mouth 4015 of threading, facilitates the enamel-covered wire of stator winding to pass through.
As shown in Figure 3 and Figure 5, the heat abstractor 3 includes radiating seat 301, sealing ring 302, heat-conducting pad 303 and heat conduction
Tabletting 304, the bottom of the shell body 1 is provided with installation through-hole, and the heat conduction tabletting 304 is arranged inside shell body 1, heat conduction
The size of tabletting 304 is more than installation through-hole, and the radiating seat 301 is arranged at the outside of shell body 1 and between heat conduction tabletting 304
Fastener is fixed and compresses the heat-conducting pad 303, and heat-conducting pad 303 facilitates leads between heat conduction tabletting 304 and radiating seat 301
Heat, the sealing ring 302 is installed between the bottom of radiating seat 301 and shell body 1, the heat conduction tabletting 304 and pcb board 6 it
Between be provided with heat-conducting glue.
The radiating seat 301 includes the radiating bottom plate 3011 of camber and is arranged at the heat radiating fin of the bottom of radiating bottom plate 3011
Piece 3012, the radiating fin 3012 uses multicolumn matrix annular array, enhances the heat dispersion of fin, the radiating bottom plate
Embedded projection 3013 is provided with 3011, the bottom of the heat conduction tabletting 304 is provided with screw hole column 3041, described embedded raised
The screw hole column groove 3014 of the matching of screw hole column 3041 is provided with 3013, the sealing ring 302 is sleeved in embedded projection 3013,
The embedded projection 3013 is filled in the installation through-hole and fixed with the screw of heat conduction tabletting 304, and the bottom of the shell body 1 is set
It is equipped with waterproof vent valve 101.Radiating seat 301 be in shell body 1 outside, pcb board 6 by heat-conducting glue, heat conduction tabletting 304, lead
Heat pad piece 303 passes to the radiating seat 301 of outside, and the area of dissipation of radiating seat 301 is big, and heat is directly transferred to the outer of shell body 1
Portion, so that radiating effect is more preferable.
Embodiment described above is only the description to the preferred embodiment of the present invention, not as the limit to the scope of the invention
Fixed, the various modifications made on the basis of design spirit of the present invention is not departed to technical solution of the present invention and transformation all should fall
In the protection domain for entering claims of the present invention determination.