CN109424552A - Electrodynamic pump - Google Patents
Electrodynamic pump Download PDFInfo
- Publication number
- CN109424552A CN109424552A CN201710740004.7A CN201710740004A CN109424552A CN 109424552 A CN109424552 A CN 109424552A CN 201710740004 A CN201710740004 A CN 201710740004A CN 109424552 A CN109424552 A CN 109424552A
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- CN
- China
- Prior art keywords
- separation sleeve
- sub
- branch
- pump
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005520 electrodynamics Effects 0.000 title claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 79
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000007769 metal material Substances 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 17
- 238000004080 punching Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims 2
- 229910001566 austenite Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0606—Canned motor pumps
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/50—Intrinsic material properties or characteristics
- F05D2300/507—Magnetic properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of electrodynamic pump, including pump case, pump shaft, rotor assembly, stator module and circuit board, pump case is capable of forming pump inner cavity, it pumps inner cavity and the first chamber and the second chamber is divided by a separation sleeve, rotor assembly is set to the first chamber, stator module and circuit board are set to the second chamber, rotor assembly includes rotor and impeller, the material of separation sleeve is with low magnetic conductivity or without the metal material of magnetic conductivity, separation sleeve includes side wall and bottom, stator module is sheathed on the periphery of side wall, and rotor is set to the inner circumferential of side wall, and the thickness of side wall is less than or equal to the thickness of bottom；Setting advantageously reduces influence of the separation sleeve to electrodynamic pump performance in this way.
Description
[technical field]
The present invention relates to a kind of fluid pumps, and in particular to a kind of electrodynamic pump.
[background technique]
Automobile industry is grown rapidly, with automotive performance towards safer, more reliable, more stable, full-automatic intelligent and
Environmental protection and energy saving direction is developed, and electrodynamic pump is largely applied in vehicular hot pipe reason system, and is well positioned to meet the requirement in market.
Electrodynamic pump includes rotor assembly, stator module and separation sleeve, and separation sleeve will stator assembly and rotor assembly be isolated, and is led to
It is often the distance between stator assembly and rotor assembly closely related with the performance of electrodynamic pump, and the setting of separation sleeve will directly affect
The distance between stator assembly and rotor assembly, therefore, the performance of separation sleeve and electrodynamic pump has inevitable connection.
[summary of the invention]
The purpose of the present invention is to provide a kind of electrodynamic pumps, advantageously reduce influence of the separation sleeve to electrodynamic pump performance.
To achieve the above object, one embodiment of the present invention adopts the following technical scheme that a kind of electrodynamic pump, including pump
Shell, pump shaft, rotor assembly, stator module and circuit board, the pump case are capable of forming pump inner cavity, and the pump inner cavity is by one
Separation sleeve is divided into the first chamber and the second chamber, and the rotor assembly is set to first chamber, the stator module and the electricity
Road plate is set to second chamber, and the rotor assembly includes rotor and impeller, and the material of the separation sleeve is with low magnetic conduction
Property or the metal material without magnetic conductivity, the separation sleeve include side wall and bottom, and the stator module is sheathed on the side wall
Periphery, the rotor are set to the inner circumferential of the side wall, and the thickness of the side wall is less than or equal to the thickness of the bottom.
Electrodynamic pump includes a separation sleeve, the material of separation sleeve be with low magnetic conductivity or without the metal material of magnetic conductivity, every
It include side wall and bottom from set, stator module is sheathed on the periphery of side wall, and rotor is set to the inner circumferential of side wall, and the thickness of side wall is small
In the thickness for being equal to bottom；Setting advantageously reduces influence of the separation sleeve to electrodynamic pump performance in this way.
[Detailed description of the invention]
Fig. 1 is a kind of schematic perspective view of electrodynamic pump of the present invention；
Fig. 2 is a kind of schematic perspective view of the first embodiment of separation sleeve in Fig. 1；
Fig. 3 is a kind of the schematic diagram of the section structure of separation sleeve in Fig. 2；
Fig. 4 is a kind of overlooking structure diagram of separation sleeve in Fig. 2；
Fig. 5 is a kind of schematic perspective view of pump shaft in Fig. 1；
Fig. 6 is a kind of schematic perspective view of second of embodiment of separation sleeve in Fig. 1；
Fig. 7 is a kind of the schematic diagram of the section structure of separation sleeve in Fig. 6.
[specific embodiment]
The present invention will be further explained below with reference to the attached drawings and specific examples:
The working media that electrodynamic pump in following embodiment can manage system for automotive thermal tube provides mobilization dynamic, and work is situated between
Matter be include 50% glycol water or clear water.
Referring to Fig. 1, electrodynamic pump 100 includes pump case, rotor assembly 3, stator module 4, pump shaft 5 and circuit board 9, and pump is outer
Shell includes first shell 1, second shell 2 and bottom cover 6, and the relatively fixed connection of first shell 1, second shell 2 and bottom cover 6 pumps outer
Shell, which is capable of forming, pumps inner cavity, and in the present embodiment, the coupling part between first shell 1 and second shell 2 is provided with first annular
Sealing ring 10, the structure of the first annular sealing ring 10 of setting can prevent working media from oozing out in junction, while can hinder
Only extraneous medium penetrates into pump inner cavity；Electrodynamic pump 100 further includes a separation sleeve 7, and separation sleeve 7 is divided into 30 He of the first chamber for inner cavity is pumped
Second chamber 40, the first chamber 30 can have working media to flow through, what the second chamber 40 was flowed through without working media, and rotor assembly 3 is set to
First chamber 30, rotor assembly 3 include rotor 31 and impeller 32, and 32 part of impeller is located in separation sleeve 7, stator module 4 and circuit
Plate 9 is set to the second chamber 40, and stator module 4 is electrically connected with circuit board 9, and a metal is provided between stator module 4 and circuit board 9
Plate 8；In the present embodiment, the second ring type seal 20, the second annular of setting are additionally provided between separation sleeve 7 and stator module 4
The structure of sealing ring 20 can form two defence, fully ensure that extraneous medium and working media do not penetrate into the second chamber 40.
Referring to Fig. 1, first shell 1 is moulding, and injection molded has flow inlet 11 and outflow port 12, and electronic pump 100 works
When, working media enters the first chamber 30 by flow inlet 11, and then working media leaves the first chamber 30, electrodynamic pump by outflow port
When 100 work, by the way that connector (being not shown on figure) to be inserted into the plug receptacle 80 of electronic pump 100, so that the control on circuit board 9
Circuit processed is connect with external power supply, and control circuit control is changed by the electric current of stator module 4 according to certain rule, to control
It formulates sub-component 4 and generates changing magnetic field, the rotor 31 of rotor assembly 3 is rotated around pump shaft 5 under the influence of a magnetic field, to make
The working media entered in the first chamber 30 is obtained as rotor 31 makes rotating motion, working media leaves the first chamber 30 due to centrifugal force
Generate the power of flowing.
It is referring to fig. 2 the structural schematic diagram of the first embodiment of separation sleeve, the material of separation sleeve 7 to Fig. 4, Fig. 2 to Fig. 4
Material for low magnetic conductivity or without the metal material of magnetic conductivity, " low magnetic conductivity " here refer to relative permeability μ r less than 20,
Specifically, in the present embodiment, the material of separation sleeve 7 is austenitic stainless steel material, and for example other austenites such as 316L, 904L are not
Become rusty Steel material；Separation sleeve 7 includes side wall 70 and bottom 71, and the stator module 4 in Fig. 1 is sheathed on the periphery of side wall 70, in Fig. 1
Rotor 31 is set to the inner circumferential of side wall 70, and side wall 70 includes inner surface 701 and outer surface 702, and inner surface 701 is than outer surface 702
Central axis closer to separation sleeve 7 is arranged, and in the present embodiment, the inner surface 701 of side wall 70 and outer surface 702 are smooth surface, i.e.,
The not set other structures of inner surface 701 and outer surface 702, the inner surface 701 of certain side wall 70 and outer surface 702 can also be set
Set other structures；Bottom 71 includes upper surface 711 and lower surface 712, and upper surface 711 is than lower surface 712 closer to separation sleeve 7
Open side, in the present embodiment, the upper surface 711 and lower surface 712 of bottom 71 are smooth surface, i.e. upper surface 711 and lower surface 712
Other structures also can be set in not set other structures, the upper surface 711 and lower surface 712 of certain bottom 71；The present embodiment
In, the thickness t1 of side wall 70 is less than or equal to the thickness t2 of bottom 71, and " the thickness t1 of side wall " refers to the inner surface of side wall 70 here
Vertical range between 701 and outer surface 702, " the thickness t2 of bottom " refers to the upper surface 711 and lower surface of bottom 71 here
Vertical range between 712；So on the one hand setting advantageously reduces influence of the separation sleeve to electrodynamic pump performance, another aspect energy
In the case where enough guaranteeing that side wall is sufficiently thin, it can guarantee the intensity of bottom 71；In the present embodiment, separation sleeve 7 passes through punching stretch
Forming sheet metal, naturally it is also possible to which the thickness t1 of machine-shaping by other means, side wall 70 is less than or equal to 1.5mm, sets in this way
The influence for advantageously reducing the W of the gap in Fig. 1 between separation sleeve and rotor assembly to electrodynamic pump performance is set, on the other hand can also be made
The heat of working media in the heat and Fig. 1 that stator module generates when working in the first chamber 30 is quickly realized by separation sleeve
Heat transfer, to be conducive to the heat dissipation of stator module；Specifically, the thickness t of side wall 70 is less than or equal to more than or equal to 0.3mm
1.5mm, in this way setting can make separation sleeve 7 while guaranteeing sufficient intensity, on the one hand can reduce the weight of electrodynamic pump 100
On the other hand amount, save the cost make separation sleeve be easier stretch process molding.
Separation sleeve 7 includes lug boss 72, and lug boss 72 protrudes setting, lug boss to the opening side direction far from separation sleeve 7
72 with 7 integrated punching drawing and forming of separation sleeve, lug boss 72 further include the first limiting section 721, and pump shaft 5 includes the second limiting section
51, the first limiting section 721 is correspondingly arranged with the second limiting section 51, and lug boss 72 is fixedly connected with the interference fit of pump shaft 5 as pump
The lower support of axis 5, in this way setting can prevent circumferentially rotating for pump shaft 5；Separation sleeve 7 further includes first step portion 75 and second
Rank portion 74, first step portion 75 include the first branch 752 and the first sub-portion 751, and the first branch 752 and the first sub-portion 751 connect
Setting, for 752 to the first sub-portion 751 of the first branch closer to the impeller 32 in Fig. 1, second step portion 74 includes the second sub-portion 742
With the second branch 741, be with the open side of separation sleeve 7 it is upper, second step portion 74 is set to the top in first step portion 75, first
The diameter of sub-portion 751 is located at 32 part of impeller in Fig. 1 in the second sub-portion 742 less than the second sub-portion 742, in this way setting, and one
Aspect advantageously reduces the whole height of electrodynamic pump 100, and impurity particle can on the other hand be not easily accessible in Fig. 1 outside rotor 31
In circulating area between 7 inner wall of wall and separation sleeve, so that impurity particle be avoided to accumulate in electrodynamic pump, be conducive to improve electronic
The service life of pump；Specifically, in conjunction with Fig. 1 and Fig. 3, the minimum range L of 32 outer peripheral surface of impeller is small in second sub-portion 742 and Fig. 1
In being equal to 2mm, setting in this way can prevent the impurity particle in working media from flowing between 31 outer wall of rotor and 7 inner wall of separation sleeve
Circulating area, to be beneficial to prevent impurity particle between 7 inner wall of separation sleeve in 31 outer wall of rotor in Fig. 1 and Fig. 1
Circulating area in accumulation, the rotor 31 being beneficial to prevent in Fig. 1 blocked by impurity particle, stall is caused, to be conducive to mention
The service life of high electrodynamic pump.
Referring to Fig. 3, separation sleeve further includes third stage portion 73, and third stage portion 73 includes third sub-portion 731 and third point
Portion 732 is provided with first annular sealing ring 10, at least partly first annular sealing in conjunction with Fig. 1 between pump case and separation sleeve 7
Circle 10 is contacted with set 7 is at least partially isolated, and specifically, in the present embodiment, first annular sealing ring 10 is sheathed on third sub-portion
731, at least partly third branch 732 and at least partly third sub-portion 731 is contacted at least partly first annular sealing ring 10, this
Sample setting enables first annular sealing ring 10 to realize Primary Location on separation sleeve 7, makes the installation of first annular sealing ring 10
Become simpler convenience.Referring to Fig. 3 and Fig. 4, second point of the third sub-portion 731 of third stage portion 73 and second step portion 74
Portion 741 forms the 4th stage portion, and in conjunction with Fig. 1, pump case includes a stage portion 13, and the 4th stage portion is corresponding with stage portion 13 to be set
It sets, in the present embodiment, stage portion 13 is set in first shell 1, the stage portion of the 4th stage portion and the first shell 1 in Fig. 1
13 are correspondingly arranged, and are conducive to positioning when first shell 1 is installed in this way, to prevent first shell 1 from cross will not occur when installing
To movement.In conjunction with Fig. 1, it is provided between the third sub-portion 731 of third stage portion 73 and second sub-portion 742 in second step portion 74
At least partly the second branch 741 of second ring type seal 20, second step portion 74 contacts with the second ring type seal of part 20,
Setting can form two defence in this way, fully ensure that the second chamber 40 that extraneous medium and working media do not penetrate into Fig. 1, from
And prevent extraneous medium and working media from entering in stator module and circuit board, it is beneficial to prevent extraneous medium and working media pair
Stator module and circuit board damage.
Referring to Fig. 6 and Fig. 7, the structural schematic diagram of Fig. 6 and Fig. 7 for the another embodiment of separation sleeve, the packet of separation sleeve 7 '
Include bottom 71 ' and lug boss 72 ', lug boss 72 ' protrudes setting to the opening side direction far from separation sleeve 7 ', lug boss 72 ' with
Bottom 71 ' is substantially flush, other features of separation sleeve 7 ' and the first embodiment of separation sleeve are identical, is not just gone to live in the household of one's in-laws on getting married one by one herein
It states, compared to the first embodiment of separation sleeve, present embodiment can make the center avoid holes (figure of metal plate 8 in Fig. 1
In be not shown) and Fig. 1 in the center avoid holes (not shown) of circuit board 9 do not process, to save processing cost, improve and dissipate
The processing efficiency and processing cost of hot plate and circuit board.
It should be understood that above embodiments are merely to illustrate the present invention and not limit technical side described in the invention
Case, although this specification is referring to the above embodiments, the present invention has been described in detail, the common skill of this field
Art personnel should be appreciated that person of ordinary skill in the field still can modify or equivalently replace the present invention, and
All do not depart from the technical solution and its improvement of the spirit and scope of the present invention, should all cover in scope of the presently claimed invention
It is interior.
Claims (13)
1. a kind of electrodynamic pump, including pump case, pump shaft, rotor assembly, stator module and circuit board, the pump case being capable of shapes
At pump inner cavity, the pump inner cavity is divided into the first chamber and the second chamber by a separation sleeve, and the rotor assembly is set to described first
Chamber, the stator module and the circuit board are set to second chamber, and the rotor assembly includes rotor and impeller, feature
Be: the material of the separation sleeve be with low magnetic conductivity or without the metal material of magnetic conductivity, the separation sleeve include side wall and
Bottom, the stator module are sheathed on the periphery of the side wall, and the rotor is set to the inner circumferential of the side wall, the side wall
Thickness is less than or equal to the thickness of the bottom.
2. electrodynamic pump according to claim 1, it is characterised in that: the separation sleeve passes through punching stretch forming sheet metal, institute
The thickness for stating side wall is less than or equal to 1.5mm.
3. electrodynamic pump according to claim 1, it is characterised in that: the isolation cover material is austenitic stainless steel material, institute
Separation sleeve is stated by punching stretch forming sheet metal, the thickness of the side wall is less than or equal to 1.5mm.
4. electrodynamic pump according to any one of the claim 1 to 3, it is characterised in that: between the pump case and the separation sleeve
It is provided with first annular sealing ring, at least partly described first annular sealing ring is contacted at least partly described separation sleeve.
5. electrodynamic pump according to claim 4, it is characterised in that: the separation sleeve includes first step portion, the First
Rank portion includes the first branch and the first sub-portion, and first branch connect setting, the first branch ratio with first sub-portion
First sub-portion is closer to the impeller.
6. electrodynamic pump according to claim 5, it is characterised in that: the separation sleeve further includes second step portion, and described second
Stage portion include the second branch and the second sub-portion, with the open side of the separation sleeve be it is upper, the second step portion is set to institute
The top in first step portion is stated, the diameter of first sub-portion is less than the diameter of second sub-portion, and the impeller wheel portion is located at
In second sub-portion.
7. electrodynamic pump according to claim 6, it is characterised in that: the most narrow spacing of second sub-portion and the impeller outer peripheral surface
From less than or equal to 2mm.
8. electrodynamic pump described according to claim 6 or 7, it is characterised in that: the separation sleeve further includes third stage portion, and described
Three stage portions include third sub-portion and third branch, and the first annular sealing ring is sheathed on the third sub-portion, at least partly
The third sub-portion and at least partly described third branch contact at least partly first annular sealing ring.
9. according to claim 1 to any one of 8 electrodynamic pumps, it is characterised in that: the pump case includes a stage portion, described
The third sub-portion of the third stage portion of separation sleeve and second branch in the second step portion form the 4th
Rank portion, the 4th stage portion and the stage portion of the pump case are correspondingly arranged.
10. electrodynamic pump according to claim 9, it is characterised in that: the third sub-portion of the third stage portion with it is described
Be provided with the second ring type seal between second sub-portion in second step portion, the second step portion it is at least partly described
Second branch contacts with part second ring type seal.
11. the electrodynamic pump according to any of claims 1 to 10, it is characterised in that: the separation sleeve further includes a lug boss,
The lug boss and the separation sleeve integrated punching drawing and forming, opening side direction of the lug boss to the separate separation sleeve
Protrusion setting.
12. electrodynamic pump according to claim 11, it is characterised in that: the lug boss includes the first limiting section, the pump shaft
Including the second limiting section, first limiting section is correspondingly arranged with second limiting section, the lug boss and the pump shaft mistake
Cooperation of being full of is fixedly connected.
13. according to claim 1 to any one of 12 electrodynamic pumps, it is characterised in that: the isolation cover material for austenite not
Become rusty Steel material, and the separation sleeve is less than or equal to 1.5mm by punching stretch forming sheet metal, the thickness of the side wall；The pump
First annular sealing ring is provided between shell and the separation sleeve, at least partly described first annular sealing ring at least partly
The separation sleeve contact；The separation sleeve includes first step portion, and the first step portion includes the first branch and the first sub-portion,
First branch connect setting with first sub-portion, and first branch is than first sub-portion closer to the impeller；
The separation sleeve further includes second step portion, and the second step portion includes the second branch and the second sub-portion, with the separation sleeve
Open side be it is upper, the second step portion is set to the top in the first step portion, and the diameter of first sub-portion is less than
The diameter of second sub-portion, the impeller wheel portion are located in second sub-portion, second sub-portion and the impeller periphery
The minimum range in face is less than or equal to 2mm；The separation sleeve further includes third stage portion, and the third stage portion includes third sub-portion
With third branch, the first annular sealing ring is sheathed on the third sub-portion, at least partly described third sub-portion and at least portion
The third branch is divided to contact at least partly first annular sealing ring；The pump case includes a stage portion, the separation sleeve
The third stage portion the third sub-portion and the second step portion second branch formed the 4th stage portion, institute
It states the 4th stage portion and the stage portion of the pump case is correspondingly arranged；The third sub-portion of the third stage portion and institute
It states and is provided with the second ring type seal between second sub-portion in second step portion, at least partly institute in the second step portion
The second branch is stated to contact with part second ring type seal；The separation sleeve further includes a lug boss, the lug boss with
The separation sleeve integrated punching drawing and forming, the lug boss protrude setting, institute to the opening side direction far from the separation sleeve
Stating lug boss includes the first limiting section, and the pump shaft includes the second limiting section, first limiting section and second limiting section
It is correspondingly arranged, the lug boss is fixedly connected with pump shaft interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740004.7A CN109424552A (en) | 2017-08-23 | 2017-08-23 | Electrodynamic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740004.7A CN109424552A (en) | 2017-08-23 | 2017-08-23 | Electrodynamic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109424552A true CN109424552A (en) | 2019-03-05 |
Family
ID=65500428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710740004.7A Pending CN109424552A (en) | 2017-08-23 | 2017-08-23 | Electrodynamic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109424552A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195633A (en) * | 2019-05-24 | 2019-09-03 | 江苏超力电器有限公司 | Secondary air pump based on brushless motor driving |
| CN111852894A (en) * | 2020-08-20 | 2020-10-30 | 日益电机股份有限公司 | Canned magnetic pump with rear cover shield leakage-proof reinforcement |
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|---|---|---|---|---|
| JPH11107972A (en) * | 1997-10-06 | 1999-04-20 | Matsushita Electric Ind Co Ltd | Electromagnetically driven pump and circulation hot bath |
| CN101586868A (en) * | 2008-05-20 | 2009-11-25 | 浙江三花股份有限公司 | Liquid discharging device |
| CN104471252A (en) * | 2012-07-16 | 2015-03-25 | 麦格纳动力系美国有限公司 | Canned electric water pump with structural can and rubber outer casing |
| CN105829727A (en) * | 2013-12-05 | 2016-08-03 | 克劳斯联合有限两合公司 | Can, and a method for producing same |
| CN105952652A (en) * | 2015-03-09 | 2016-09-21 | 现代自动车株式会社 | Electric pump having circuit board |
-
2017
- 2017-08-23 CN CN201710740004.7A patent/CN109424552A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11107972A (en) * | 1997-10-06 | 1999-04-20 | Matsushita Electric Ind Co Ltd | Electromagnetically driven pump and circulation hot bath |
| CN101586868A (en) * | 2008-05-20 | 2009-11-25 | 浙江三花股份有限公司 | Liquid discharging device |
| CN104471252A (en) * | 2012-07-16 | 2015-03-25 | 麦格纳动力系美国有限公司 | Canned electric water pump with structural can and rubber outer casing |
| CN105829727A (en) * | 2013-12-05 | 2016-08-03 | 克劳斯联合有限两合公司 | Can, and a method for producing same |
| CN105952652A (en) * | 2015-03-09 | 2016-09-21 | 现代自动车株式会社 | Electric pump having circuit board |
Non-Patent Citations (1)
| Title |
|---|
| 关醒凡: "《现代泵理论与设计》", 30 April 2011 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195633A (en) * | 2019-05-24 | 2019-09-03 | 江苏超力电器有限公司 | Secondary air pump based on brushless motor driving |
| CN111852894A (en) * | 2020-08-20 | 2020-10-30 | 日益电机股份有限公司 | Canned magnetic pump with rear cover shield leakage-proof reinforcement |
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Effective date of registration: 20201208 Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Applicant after: ZHEJIANG SANHUA INTELLIGENT CONTROLS Co.,Ltd. Address before: 310018 No. 12, No. 289-2, Xiasha Economic Development Zone, Hangzhou, Zhejiang Applicant before: Hangzhou Sanhua Research Institute Co.,Ltd. |
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Application publication date: 20190305 |