CN206860471U - A kind of micro centrifugal pump - Google Patents
A kind of micro centrifugal pump Download PDFInfo
- Publication number
- CN206860471U CN206860471U CN201720386443.8U CN201720386443U CN206860471U CN 206860471 U CN206860471 U CN 206860471U CN 201720386443 U CN201720386443 U CN 201720386443U CN 206860471 U CN206860471 U CN 206860471U
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- China
- Prior art keywords
- rotor
- impeller
- pump case
- centrifugal pump
- blade
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- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000008676 import Effects 0.000 claims abstract description 8
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical group 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000284 extract Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007789 sealing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000030208 low-grade fever Diseases 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
It the utility model is related to machinery equipment field, disclose a kind of micro centrifugal pump, including blade side cover, impeller, pump case, stator, fixing axle, circuit board and end cap, to being axially provided with rotor installation axle on the inside of end cap in the middle part of the import of blade side cover, and there is the tangentially oriented outlet connected with impeller cavity on blade side cover circumference, impeller cavity wall exit side is provided with boss, impeller is arranged in pump case, one end axis connection is installed by clutch shaft bearing and rotor, its other end is installed with rotor, stator is surrounded on rotor periphery and is fixedly mounted in pump case, fixing axle one end is connected by second bearing with impeller.Compared with prior art, the micro centrifugal pump after being assembled using the technical solution of the utility model, rational in infrastructure compact, axiality is high, and noise is small, good airproof performance, easy to disassemble and maintenance, can extract the higher fluid body of viscosity.It is good using low-voltage three-phase AC electric control driving part, control performance.
Description
Technical field
The utility model belongs to plant equipment and engineering device technique field, especially with regard to the structure design of centrifugal pump, specifically
It is a kind of micro centrifugal pump.
Background technology
Centrifugal pump is to convey the pump of liquid by centrifugal force caused by impeller rotation, is needed and motor connection band during startup
Movable vane wheel and water high-speed motion, water occur centrifugal motion, are thrown toward impeller outer edge, and the pressure pipe road of water pump is flowed into through pump case.
Existing centrifugal pump generally comprises the pump housing and motor, and universal volume is larger, it is necessary to install when in use for this centrifugal pump
The pump housing and group of motors dress are used cooperatively, and are operated using Electric-motor driven pumps body.A kind of structure of existing micropump generally comprises can group
The drive part and the pump housing unloaded is assembled and disassembled, there are two interfaces of one-in-and-one-out on the pump housing, water enters from water inlet, and discharge outlet goes out, and volume
It is compact, pocket, but this centrifugal pump has larger requirement to flow, in the medium to be taken out, is simply possible to use in and extracts water, non-oily liquid
A small amount of with permission oil or residue etc., and can not be run when extracting colder, relatively viscous paraffin oil.
Meanwhile existing micro centrifugal pump drives direct current generally using more difficult low-voltage brshless DC motor is controlled
Machine is more expensive than alternating current generator cost, and maintenance maintenance cost is high.Micro centrifugal pump has larger noise, wherein drive part when operating
Noise account for major part, the resonance, inner rotation part mainly due to rotor and stator turn caused by with the reason such as bias,
The relatively large axiality caused after assembling of volume of motor part is not easy to ensure.
Utility model content
The purpose of this utility model is to provide a kind of small volume, efficiency high, controlling party in view of the shortcomings of the prior art
Just micro centrifugal pump.
To reach above-mentioned purpose, the utility model is achieved through the following technical solutions,
A kind of micro centrifugal pump, including blade side cover, impeller, pump case, stator, fixing axle, circuit board and end cap, blade side
Lid is arranged on pump case one end, and its inner side offers impeller cavity, and middle part offers the import of insertion, in the middle part of the import of blade side cover
Rotor installation axle is axially provided with the inside of to end cap, and is connected on blade side cover circumference with tangentially oriented with impeller cavity
Outlet, impeller cavity wall exit side is provided with boss, and the impeller is arranged in pump case, one end by clutch shaft bearing with
Rotor installs axis connection, and its other end is installed with rotor, and stator is surrounded on rotor periphery and is fixedly mounted in pump case, Gu
Dead axle one end is connected by second bearing with impeller, and surface-mounted integrated circuit is arranged on the rotating shaft other end, and end cap is fixed on the another of pump case
One end.
After assembling, impeller cavity using boss as boundary, is divided into two spaces by impeller cavity by the boss structure of blade side cover, can
The upper pressure of impeller cavity inner outlet is added, increases operating efficiency.Impeller rotary work under the drive of rotor, using low noise
Sound miniature bearing, impeller both ends are rotatably installed on blade side cover and fixing axle respectively, rotor is directly installed on pump case internal lobe
One end is taken turns, stator is fixed on pump case inner peripheral surface so that the structure of driving part obtains maximum simplification in pump case, and ensures equipment
Work operation is unaffected.
Further, the pump case one end is provided with annular seal pocket, and O-ring seal is provided with seal groove.Pump case
The end face for coordinating installation with blade side cover is provided with sealing ring, will be hedged off from the outer world inside the impeller cavity and pump case of work, protects
The part protected in pump case runs well.
Further, insulating cylinder is coaxially fixedly installed in pump case, is internally formed rotor chamber, the insulation drum outer wall and pump
The bore of stator for being surrounded on insulating cylinder is formed between shell.
Insulating cylinder has preventing water leakage effect between pump case inner stator and rotor.Insulating cylinder is dismountable, is being extracted
When nonconducting oily, active force between rotor and stator can be increased by removing insulating cylinder, so as to increase the revolving force of driving
Square, also, low-grade fever caused by driving part is cooled down by the circulation of oil.
Further, the insulating cylinder bottom offers the fixed shaft hole of insertion.Fixing axle one end is from pump case stator chamber
Portion is stretched into insulating cylinder, enhances the sealing effectiveness of pump case, while ensure that the axiality integrally assembled.
Further, the rotor inlays frame including rotor and the permanent magnet on frame, the permanent magnetism is inlayed installed in rotor
Body is rare-earth permanent magnet.Impeller one end is provided with projection, and rotor is inlayed frame and is installed on projection, and permanent magnet is even slice, uniformly
Inlayed installed in rotor on frame.
Further, the blade of the impeller is circular arc type blade, and quantity is 10~20.
Further, rectangular cross-section after the blade expansion, its tail end is corresponding with impeller disk outer rim, its thickness direction
Section caudad uniformly increases from initiating terminal.Blade is slowly bent and elongate blade, increase, gather, make impeller with
Blade side cover forms relative closed wheel space, increases and draws water and operating pressure during draining is poor.
Further, the circuit board is the surface-mounted integrated circuit with miniature frequency changer circuit, and low-voltage DC is converted into
Low-voltage three-phase AC electricity.
Further, the fixing axle includes integrally formed axis body and flange.Flange end face is parallel plate face, during installation
Ensure that bearing is vertical and is close to the barrel that insulate, and play a part of coaxial positioning and sealing.
The micro centrifugal pump formed using above-mentioned technical proposal, rational in infrastructure compact, axiality is high, and noise is small, sealing
It is good, easy to disassemble and maintenance, the higher fluid body of viscosity can be extracted.Using low-voltage three-phase AC electric control driving part,
Control performance is good.
Brief description of the drawings
Fig. 1 is structural blast schematic diagram of the present utility model；
Fig. 2 is assembling structure schematic diagram of the present utility model；
Fig. 3 is the front view of blade side cover in the utility model；
Fig. 4 is the A-A sectional views of blade side cover in the utility model；
Fig. 5 is the front view of impeller in the utility model；
Fig. 6 be Fig. 5 shown in the utility model in impeller B-B sectional views；
Fig. 7 is the cross-sectional view of pump case in the utility model；
Fig. 8 is the structural representation of fixing axle in the utility model.
In figure, 1, blade side cover；1-1, impeller cavity；1-2, import；1-3, rotor peace rotating shaft；1-4, outlet；1-5, boss；
1-6, bolt hole；2nd, impeller；2-1, clutch shaft bearing；2-2, blade；2-2-1, blade tail end；2-2-2, blade initiating terminal；2-3、
The impeller disk；2-4, second bearing；2-5, projection；3rd, pump case；3-1 seal grooves；3-2, bolt fixing hole；3-3, insulating cylinder；3-3-
1st, fixed shaft hole；3-4, rotor chamber；3-5, bore of stator；4th, stator；4-1, stator core；4-2, winding coil；5th, fixing axle；5-
1st, axis body；5-2, flange；6th, circuit board；7th, end cap；8th, rotor；8-1, rotor inlay frame；8-2, permanent magnet；9th, O-ring seal.
Embodiment
In order to further describe the utility model, specific embodiment of the present utility model is carried out below in conjunction with the accompanying drawings detailed
Describe in detail it is bright, following examples be to it is of the present utility model explanation and application example and the utility model is not limited to following implementation
Example.
A kind of micro centrifugal pump as shown in Figures 1 to 8, including blade side cover 1, impeller 2, pump case 3, stator 4, fixing axle
5th, circuit board 6 and end cap 7, blade side cover 1 are arranged on the one end of pump case 3, and its inner side offers impeller cavity 1-1, and middle part, which offers, to be passed through
To inner shafts to being provided with rotor installation axle 1-3 in the middle part of logical import 1-2, the import 1-2 of blade side cover 1, and in blade side
There is the tangentially oriented outlet 1-4 connected with impeller cavity 1-1, side is set at wall outlet 1-4 in impeller cavity 1-1 on the circumference of lid 1
It is equipped with boss 1-5.Bolt hole 1-6 is uniformly offered in the outer rim of blade side cover 1, is fastened using bolt and the installation of pump case 3.Impeller
2 are arranged in pump case 3, and are connected by clutch shaft bearing 2-1 with rotor installation axle 1-3, and its other end is installed with rotor 8.
Rotor 8 inlays frame 8-1 including rotor and the permanent magnet 8-2 on frame 8-1 is inlayed installed in rotor, and permanent magnet 8-2 is rare earth permanent magnet
Body, permanent magnet 8-2 are even slice, are uniformly inlayed installed in rotor on frame 8-1.Specifically, the other end of impeller 2 is provided with projection 2-
5, rotor is inlayed frame 8-1 and is installed on projection 2-5.Projection 2-5 cross sectional shapes are regular polygon.
The blade 2-2 of impeller 2 is circular arc type blade, and quantity is 10~20.Rectangular cross-section, i.e. oar after blade 2-2 expansion
Leaf 2-2 height is contour from blade tail end 2-2-1 to blade initiating terminal 2-2-2, is formed after installation with blade side cover 1 relatively closed
Space, the pressure differential with the external world between blade 2-2 is improved, improves operating efficiency.Blade tail end 2-2-1 and impeller disk 2-3 outer rim phases
Corresponding, its thickness direction section uniformly increases from blade initiating terminal 2-2-2 to blade tail end 2-2-1.
Stator 4 is surrounded on the periphery of rotor 8 and is fixedly mounted in pump case 3.Stator 4 includes stator core 4-1 and winding wire
4-2 is enclosed, wherein stator core 4-1 is that multilayer silicon steel sheet is welded.
The one end of pump case 3 is provided with annular seal pocket 3-1, and offers bolt fixing hole 3-2, is installed in seal groove 3-1
There is O-ring seal 9.Insulating cylinder 3-3 is coaxially fixedly installed in pump case 3, cylinder is internally formed rotor chamber 3-4, insulating cylinder 3-3 outer walls
The bore of stator 3-5 for being surrounded on insulating cylinder 3-3 is formed between pump case 3.Insulating cylinder 3-3 bottoms offer the stair-stepping solid of insertion
Dead axle hole 3-3-1.Fixing axle 5 includes integrally formed axis body 5-1 and flange 5-2, and axis body 5-1 positions are stepped, and its one end passes through
Second bearing 2-4 is connected with impeller 2, and flange 5-2 end faces are parallel plate face, ensures that second bearing 2-4 is vertical and is close to during installation
Insulating cylinder 3-3 outer bottoms, play a part of coaxial positioning and sealing.
Circuit board 6 is connected with the flange 5-2 of fixing axle 5, and circuit board 6 is the surface-mounted integrated circuit with miniature frequency changer circuit,
It is provided with the positive and negative electrode binding post and three ultralow pressure three-phase alternating-current supply binding posts of low-voltage dc power supply, circuit
Low-voltage DC is converted into low-voltage three-phase AC electricity by plate 6, and control is more convenient.End cap 7 is fixed on the one end of pump case 3, its
On offer power supply string holes, the blade side cover 1 of end cap 7 and the other end coordinates the integral sealing of pump case 3, and can dive under water use.
Specific embodiment of the present utility model is described in detail above in association with embodiment, but this practicality is new
Type is not limited to above-mentioned embodiment, in the knowledge that general technical staff possesses in this area, can also not depart from
Various changes can be made on the premise of the utility model aims, but these changes are all in the scope of protection of the utility model.
Claims (9)
1. a kind of micro centrifugal pump, including blade side cover (1), impeller (2), pump case (3), stator (4), fixing axle (5), circuit board
(6) and end cap (7), blade side cover are arranged on pump case one end, and its inner side offers impeller cavity (1-1), and middle part offers insertion
Import (1-2), it is characterised in that axial direction on the inside of end cap is provided with rotor installation axle (1- in the middle part of the import of the blade side cover
3), and on blade side cover circumference there is the tangentially oriented outlet (1-4) connected with impeller cavity, impeller cavity wall exit
Side is provided with boss (1-5), and the impeller is arranged in pump case, and installs axis connection by clutch shaft bearing (2-2) and rotor,
Its other end is installed with rotor (8), and stator is surrounded on rotor periphery and is fixedly mounted in pump case, and fixing axle one end passes through
Second bearing (2-4) is connected with impeller, and the circuit board is arranged on the fixing axle other end, and the end cap is fixed on the another of pump case
End.
2. micro centrifugal pump according to claim 1, it is characterised in that the pump case one end is provided with annular seal pocket
(3-1), O-ring seal (9) is installed in seal groove.
3. micro centrifugal pump according to claim 1, it is characterised in that insulating cylinder (3- is coaxially fixedly installed in pump case
3) rotor chamber (3-4), is internally formed, the bore of stator (3-5) for being surrounded on insulating cylinder is formed between the insulation drum outer wall and pump case.
4. micro centrifugal pump according to claim 3, it is characterised in that the insulating cylinder bottom offers the fixation of insertion
Axis hole (3-3-1).
5. micro centrifugal pump according to claim 1, it is characterised in that the rotor including rotor inlay frame (8-1) and
The permanent magnet (8-2) on frame is inlayed installed in rotor, the permanent magnet is rare-earth permanent magnet.
6. micro centrifugal pump according to claim 1, it is characterised in that the blade (2-1) of the impeller is circular arc type leaf
Piece, quantity are 10~20.
7. micro centrifugal pump according to claim 6, it is characterised in that rectangular cross-section after the blade expansion, its oar
Leaf tail end (2-2-1) is corresponding with the impeller disk (2-3) outer rim, and its thickness direction section is from blade initiating terminal (2-2-2) to blade
Tail end uniformly increases.
8. micro centrifugal pump according to claim 1, it is characterised in that the circuit board is with miniature frequency changer circuit
Surface-mounted integrated circuit, low-voltage DC is converted into low-voltage three-phase AC electricity.
9. micro centrifugal pump according to claim 1, it is characterised in that the fixing axle includes integrally formed axis body
(5-1) and flange (5-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386443.8U CN206860471U (en) | 2017-04-13 | 2017-04-13 | A kind of micro centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386443.8U CN206860471U (en) | 2017-04-13 | 2017-04-13 | A kind of micro centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860471U true CN206860471U (en) | 2018-01-09 |
Family
ID=60816045
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720386443.8U Expired - Fee Related CN206860471U (en) | 2017-04-13 | 2017-04-13 | A kind of micro centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837814A (en) * | 2017-04-13 | 2017-06-13 | 海林金昌电机有限公司 | A kind of micro centrifugal pump |
-
2017
- 2017-04-13 CN CN201720386443.8U patent/CN206860471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837814A (en) * | 2017-04-13 | 2017-06-13 | 海林金昌电机有限公司 | A kind of micro centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20190413 |