CN105370582A - Electronic water pump - Google Patents
Electronic water pump Download PDFInfo
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- CN105370582A CN105370582A CN201410425454.3A CN201410425454A CN105370582A CN 105370582 A CN105370582 A CN 105370582A CN 201410425454 A CN201410425454 A CN 201410425454A CN 105370582 A CN105370582 A CN 105370582A
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Abstract
The invention provides an electronic water pump. The electronic water pump comprises an outer shell, a spacer sleeve, a stator component and a rotor component. The space inside the electronic water pump is partitioned into two cavities by the spacer sleeve, wherein the two cavities include the containing cavity and the fluid cavity respectively. The rotor component is located in the fluid cavity, and the stator component is fixedly arranged in the containing cavity. The rotor component is an injection molding part comprising a rotor iron core and a rotating shaft. The rotor iron core comprises a rotor body and an even number of rotor salient poles. The stator component comprises a stator and a plurality of windings. The stator comprises a stator body and an even number of stator salient poles. The windings are wound on the stator salient poles, the stator salient poles are closer to the rotor salient poles relative to the stator body, and the rotor salient poles are closer to the stator salient poles relative to the rotor body. When the electronic water pump acts, the windings of the stator are powered on respectively according to a certain sequence, and at least two windings are simultaneously powered on in the powering-on process and drive the rotor component to rotate. The rotor component cannot be formed by permanent magnet materials, so that the structure and the assembling process are simpler, and operation is more reliable.
Description
[technical field]
The present invention relates to a kind of electronic water pump, particularly relate to a kind of automobile-used electronic water pump.
[background technique]
Now general automobile-used electronic water pump all adopts brushless electric machine, and a part for rotor part adopts permanent-magnet materials to make; Because there is the existence of permanent-magnet materials, production technology magnetizes operation, and permanent-magnet materials attribute is more crisp, on cost, rareearth magnetic material is somewhat expensive and price fluctuation is large, and in concrete using process, particularly when environment rather harsh, the impact on motor performance such as the impact also needing consideration permanent magnet to demagnetize during embody rule and installation precision.
[summary of the invention]
The object of the present invention is to provide a kind of electronic water pump of new structure, can without the need to using the rotor part that permanent-magnet material makes, for this reason, the present invention adopts following technological scheme:
A kind of electronic water pump, comprises frame, separation sleeve, stator component, rotor part; Space in described electronic water pump is separated into two cavitys by described separation sleeve: holding cavity and fluid chamber, described fluid chamber and holding cavity isolated and make the fluid of fluid chamber can not flow to holding cavity; Described rotor part is positioned at described fluid chamber, and described stator component is fixedly installed in described holding cavity; Described rotor part comprises rotor iron core, blade injection molding body, rotating shaft, and described rotor part is moulding; Described rotor iron core comprises rotor body portion and even number of rotor salient pole; Described stator component comprises stator and multiple winding, described stator comprises stator body portion and even number stator salient poles, each stator salient poles is wound with described winding, described stator salient poles relative stator main body portion is near rotor with salient pole, and rotor with salient pole relative rotor main body portion is near described stator salient poles; When described electronic water pump action, multiple windings of stator component are energized in certain sequence respectively, and have at least two windings to be energized during energising simultaneously, and drive described rotor part to rotate.Described holding cavity and fluid chamber are separated by separation sleeve, thus make can to put in holding cavity the parts that stator component etc. needs the i.e. not fluid-resistant of energising.
Described rotor part does not comprise permanent magnet material, and described rotor iron core is that silicon steel sheet connects through punch process and through riveted joint or hasp or is welded and fixed and formed or use the powder metallurgy pressing of high magnetic permeability to make; Described rotor part also comprises plastic cushion, and plastic cushion is arranged between adjacent rotor with salient pole; Described stator salient poles and rotor with salient pole are all radially evenly arranged, described stator is that silicon steel sheet connects through punch process and through riveted joint or hasp or is welded and fixed and formed or use the powder metallurgy pressing of high magnetic permeability to make, and the quantity of described stator salient poles is greater than the quantity of rotor with salient pole.Such rotor part does not comprise permanent magnet material, and structure is relative with assembly technology simple.
Described rotor part is that rotor iron core, rotating shaft, plastic cushion are fitted together the integrative-structure formed through injection moulding, and described blade injection molding body by coated to rotor iron core, plastic cushion, and forms clad in the outside of rotor iron core.
Described rotor iron core and or plastic cushion at least one end in two ends of axis be provided with lack part, when rotor part is shaping, plastic materials is filled or is at least partly filled described lack part, and this part plastic materials is the reinforcement structure that the part of blade injection molding body forms rotor part.
Described rotating shaft is being provided with groove with the position that described blade injection molding body is combined or described rotating shaft is being processed into helical or reticular structure with the outer surface at the position that described blade injection molding body is combined; Described rotor part forms blade part in one end of rotor iron core axis, and comprises end clad at the other end of axis, and blade part and end clad are structure as a whole.
The frame of described electronic water pump comprises the first housing and the second housing, and the first housing is provided with fluid inlet and outlet; Described second housing and separation sleeve form described holding cavity, and the first housing and separation sleeve form fluid chamber; Heat sink, electronic circuit board, capacitor is also fixedly installed in described holding cavity.
Described stator component comprises three groups or four groups of stator salient poles, often organize stator salient poles and comprise symmetrically arranged two stator salient poles, each stator salient poles is respectively wound with a winding, two windings often organizing stator salient poles are that serial or parallel connection is arranged, when electronic action, in this group stator salient poles, the winding of coiling is energized simultaneously.
Described stator component can comprise three groups of stator salient poles, often organize stator salient poles and at least comprise four stator salient poles arranged symmetrically and evenly, each stator salient poles is respectively wound with a winding, four windings often organizing stator salient poles are serial or parallel connection or arrange with another two winding parallels after connecting between two again, when electronic action, in this group stator salient poles, the winding of coiling is energized simultaneously.
[accompanying drawing explanation]
Fig. 1 is the schematic appearance of a mode of execution of electronic water pump of the present invention;
Fig. 2 is the schematic diagram that electronic water pump shown in Fig. 1 is analysed and observe, and wherein part does not draw concrete structure;
Fig. 3 is the cross-sectional schematic of C-C in Fig. 2 embodiment;
Fig. 4 is the schematic diagram of Fig. 2 embodiment rotor parts;
Fig. 5 is the cross-sectional schematic of Fig. 4 rotor part;
Fig. 6 is the schematic diagram analysed and observe along A-A of Fig. 5 rotor part
Fig. 7 is the schematic diagram of the part before the injection moulding of Fig. 4 rotor part;
Fig. 8 is the cross-sectional schematic of stator component in Fig. 2 embodiment;
Fig. 9 be Fig. 8 stator component B-B to schematic diagram;
Figure 10 is the schematic diagram of part before the rotor part injection moulding of another mode of execution of the present invention.
Assembly in figure is not necessarily drawn in proportion, and emphasis is the principle for illustrating described embodiment.In the accompanying drawings, same label represents identical or corresponding parts in each view.
[embodiment]
Below in conjunction with the drawings and specific embodiments, the invention will be further described.As shown in Fig. 1-Fig. 9, the electronic water pump of the present embodiment is provided with import and outlet (in figure the number of not marking on a map), and electronic water pump comprises frame 1, separation sleeve 5, stator component 7, rotor part 8; Frame 1 comprises the second housing 15, is provided with the first housing 14 of import and outlet; Space in frame 1 is separated into two cavitys by separation sleeve 5: holding cavity 13 and fluid chamber 12, the fluid chamber 12 that what holding cavity 13, the first housing 14 that can be used for putting electronic device etc. of what the second housing 15 and separation sleeve 5 were formed is relative closure and separation sleeve 5 were formed is with import and outlet; Sealing gasket 26 is respectively arranged with as can be O-ring seal between separation sleeve 5 and the first housing 14, second housing 15.Stator component 7 is fixedly installed in holding cavity 13, heat-dissipating aluminium plate 62 and the electronic parts and components such as electronic circuit board 61, capacitor 63 are also fixedly installed in holding cavity 13, electronic circuit board 61 and capacitor 63 form the electronic control circuit driving electronic water pump motor, and heat-dissipating aluminium plate 62 contributes to the heat conduction of electronic circuit board 61 to go out.Electronic circuit board 61, the electronic parts and components such as capacitor 63, stator component 7 are connected with outside line by the connector assembly (not shown) that the second housing 15 is arranged.Heat-dissipating aluminium plate 62 and the electronic parts and components such as electronic circuit board 61, capacitor 63 are fixedly installed on separation sleeve 5 or separation sleeve 5 and the second housing 15.Second housing 15, first housing 14, separation sleeve 5 are fixed by set screw 24 together in the present embodiment.
Rotor part 8 comprises rotating shaft 81, rotor iron core 82, plastic cushion 83, blade injection molding body 84, rotating shaft 81, rotor iron core 82, plastic cushion 83 are fixed together by blade injection molding body and form rotor part 8, the two ends of rotating shaft 81 stretch out in rotor part 8 and match with the bearing at two ends, and rotor part 8 is arranged on rotationally in fluid chamber 12 and is arranged on rotationally in other words between separation sleeve 5 and the first housing 14.The outer surface of rotating shaft 81 can be provided with groove more reliable with the combination making both with the position that blade injection molding body is combined, or is processed into helical or reticular structure to make both combinations more reliable by rotating shaft 81.Separation sleeve 5 is being provided with spacing fixing part 51 towards fluid chamber, and the first housing is provided with support 11, and support 11 and the first housing 14 are formed in one structure.Wherein one end of rotor part 8 and one end of rotating shaft are arranged at the spacing fixing part 51 of separation sleeve 5 rotationally by the second bearing 22, the other end is by pad 23, clutch shaft bearing 21 is arranged at supporting base 25, supporting base 25 is between support 11 and rotor part 8, supporting base 25 is provided with the second limited part 251 of indent, clutch shaft bearing 21 is positioned at or is positioned at least partly the second limited part 251 of supporting base 25 and obtains spacing, the two ends radial through rotating shaft 81 of rotor part 8 respectively with clutch shaft bearing, the radial direction of the second bearing is spacing and realize spacing, axially by the spacing fixing part 51 of separation sleeve 5, supporting base 25 and support 11 and spacing namely spacing by the second limited part of supporting base 25.And be set in rotating shaft 81 between the end that pad 23 is arranged on clutch shaft bearing 21 and blade injection molding body 84, thus can play a part to reduce kinetic friction.The present embodiment rotor parts comprise plastic cushion, but these parts also can not be arranged, and rotor part only coated rotor iron core namely at the former position of plastic cushion that arranges with several corresponding groove, when so just rotor part rotates, resistance can be relatively larger; Also can be fill this part space when rotor part injection moulding in addition, the shaping of plastic cushion and assembling can be omitted like this.
Particularly, rotor iron core 82 comprises rotor body portion 823, rotor attachment hole 822 and reinforced hole 821, multiple rotor with salient pole 824 along rotor body portion 823 evagination, and namely rotor with salient pole protrudes along rotor body portion 823 to stator component 7 direction or can be described as and radially protrudes; Rotor with salient pole 824 is radially evenly arranged, in the present embodiment, motor is the reluctance motor of four phases (8/6) structure, rotor iron core 82 comprises 6 outwardly rotor with salient pole 824 namely protruded to stator direction, and two rotor with salient pole be wherein oppositely arranged form a group rotor salient pole i.e. totally three group rotor salient poles.Rotating shaft 81 is arranged by rotor attachment hole 822 and rotor iron core interference fit, also can coordinate to carry out adding again and force both reliably fixing by overcurrent in addition.Plastic cushion 83 is also provided with to fill between adjacent rotor with salient pole.Man-hour is added at rotor part 8, by rotating shaft 81, plastic cushion 83, rotor iron core 82 is fixing together carries out injection moulding as inserts during injection moulding, form the blade injection molding body 84 of integrative-structure by injection moulding and form rotor part, blade injection molding body 84 is coated on plastic cushion 83, the outside of rotor iron core 82 forms thinner clad 841, similarly at plastic cushion 83, the two ends of rotor iron core 82 form end clad 842 and blade part 843 respectively, plastic materials is filled or is filled the reinforced hole 821 of rotor iron core at least partly simultaneously, here reinforced hole 821 is namely as lack part, thus plastic materials can carry out filling or filling at least partly when making injection moulding, thus the mechanical property making blade injection molding body 84 be connected with rotor iron core is more reliable.The plastic clad that blade injection molding body is formed can make rotor iron core 82 and outside isolated, the problem even if Long-Time Service also can not get rusty etc. in the environment having the liquid such as water.In the present embodiment, rotor iron core does not adopt permanent magnet material to make, rotor iron core be specifically as follows silicon steel sheet through punch process and through riveted joint hasp connect or be welded and fixed formation, the powder metallurgy pressing of high magnetic permeability also can be used to make.Here, " high magnetic permeability " refers to permeability between 7000-10000 henry/rice (H/m).
Stator component 7 is positioned at the outside of separation sleeve 5, is specifically sheathed in the present embodiment and is fixed on separation sleeve 5.Stator component 7 comprises stator 71, winding 72.Motor in the present embodiment is the reluctance motor of four phases (8/6) structure, and wherein stator 71 comprises stator base portion 711 and four groups of stator salient poles 712, i.e. 8 stator salient poles; Stator salient poles 712 is for arrange symmetrically, and namely stator salient poles is inwardly protruded to rotor part 8 direction from stator base stage 711; Stator salient poles 712 adopts silicon steel sheet to fix through rivet after punching press, or withhold through bending fastening after punching press after end arranges cramp groove, or namely the position " hasp " fallen in next punching at the position that a punching protrudes forms hasp and is connected, in addition can also through being welded and fixed or using the powder metallurgy pressing of high magnetic permeability to make after punching press together.Often organize stator salient poles be symmetrical arranged and be wound with winding, each stator salient poles respectively has a winding 72, often organizes stator salient poles if the winding of two on stator salient poles A, A ' is in being arranged in series; Also can be connected respectively to two windings by circuit in addition, such two windings are arranged in parallel exactly; Namely simultaneously the winding of each group stator salient poles is energized or power-off.Between winding 72 and stator salient poles 712, also be provided with isolation layer, can be specifically first at each group of sheathed inner insulating layer of stator salient poles, inner insulating layer can be the working of plastics formed through injection moulding, then coiling winding on inner insulating layer, winding is drawn through connecting line, and the winding technique often organized connects together or after separating coiling again.Inner insulating layer in addition between stator salient poles to winding also can be stator salient poles corresponding on this position of coiling winding, be coated with a layer insulating as epoxy coated layer, and then carry out the coiling of winding, like this, the thickness of inner insulating layer can be relatively thin; Can also arrange in stator salient poles in addition if sheathed insulating paper etc. is to carry out insulation isolation.
During electronic water pump specific works, each group of winding energising can be given in the direction of the clock or counterclockwise, concrete move back that electricity order needs according to water pump action can designed, designed.Be described to give successively during the A → D of stator → C → B phase winding energising below; In Fig. 3, the relative position of stator component, rotor part is as initial position, now under a phase place A-A ' wherein, stator A-A ' excitation, two winding energisings on stator salient poles A-A ', now two rotor with salient pole 8242 and stator salient poles A, A ' are attracting relative and make position relatively fixing, and now magnetic resistance is relatively minimum; Subsequent, winding power-off on stator salient poles A, A ' degaussing, and the winding energising on stator salient poles D, D ', i.e. stator D-D ' excitation, now rotor clockwise rotates about 15 °, makes two rotor with salient pole 8243 relative with stator salient poles D, D ' attracting and position is relatively fixing; Then, the winding power-off on stator salient poles D, D ' degaussing, the winding energising on stator salient poles C, C ', stator C-C ' excitation, now rotor clockwise rotates about 15 °, and rotor with salient pole 8244 is relative with stator salient poles C, C ' attracting and position is relatively fixing; Then, winding power-off on stator salient poles C, C ' also makes stator degaussing, the winding energising on stator salient poles B, B ', stator B-B ' excitation, now rotor clockwise rotates about 15 ° again, and rotor with salient pole 8241 is relative with stator salient poles B, B ' attracting and position is relatively fixing; Subsequent stator A-A ' excitation, two windings on stator salient poles A-A '; Like this, rotor part just achieves and rotates clockwise.Contrary, if stator is that then rotor is just by relatively rotating corresponding angle counterclockwise by A → B → C → D phase winding energising.Namely the rotational action direction of electronic water pump only needs the excitation order changing winding energising, and has nothing to do with the current direction of winding.If need to rotate how many angles, be then energized to winding by excitation order.
In addition in actual applications, can need the different salient stator number of poles of design and rotor with salient pole number according to different, the angle that each excitation rotor rotates like this can be different.In embodiment presented hereinbefore, motor is the reluctance motor of four phases (8/6) structure, and wherein stator salient poles is not identical with the quantity of rotor with salient pole, and namely stator salient poles is 8, and rotor with salient pole is 6.Motor can also be the reluctance motor of three-phase (12/8) structure in addition, namely stator salient poles is 12, and rotor with salient pole is 8, at this moment, often organizing stator salient poles is 4, be 4 windings during energising during each excitation phase to be energized, 4 windings can be arranged by serial or parallel connection simultaneously, connect and then are arranged in parallel in addition also can be relative two; Can be the reluctance motor of three-phase (6/4) structure in addition, namely stator salient poles be 6, and rotor with salient pole is 4, and similarly, every two stator salient poles are one group.Also can find out that stator salient poles is not identical with the quantity of rotor with salient pole from upper.
Introduce another one embodiment below, shown in please refer to the drawing 10.The main distinction of the present embodiment and embodiment presented hereinbefore is, in the present embodiment, the rotor iron core 82a of rotor part and the structure of plastic cushion 83a different, rotor iron core 82a does not arrange reinforced hole 821 again, but be provided with groove part 825 as lack part in the position adjacent with plastic cushion 83a, the same reinforced hole 831 that is also provided with on plastic cushion 83a is as lack part in addition, like this, at plastic cushion 83a and rotor iron core 82a, rotating shaft 81 assemble and integrated injection molding time, plastic materials is made to fill or to be partially filled these lack parts, thus blade injection molding body and rotor iron core can be made, the combination of plastic cushion is more reliable and stable.Certain plastic cushion and rotor iron core can also be arranged other structures reinforcement structure and make blade injection molding body and both combinations more reliable, as made, plastic cushion is arranged the concrete lack part as arranged indent on its side 832, lack part of other structures, or the lack part of indent is set at the side 8240 of cam rotor, make the blade injection molding body after rotor part injection moulding has axial for fixed plastics cushion block like this, the reinforcement structure of cam rotor, thus make the blade injection molding body of rotor part be connected more reliable with plastic cushion, or gap after making plastic cushion and rotor iron core assemble is relatively reasonable, as at 0.5-1.5mm etc., this part gap has plastic materials filling when injection moulding like this, thus ensure the reliability and stability of rotor part.
The present invention can not adopt permanent magnet as a part for rotor, namely the use can cancelling permanent magnet realizes the function of electronic water pump, adopt technological scheme of the present invention in addition, the rotor part of electronic water pump adopts plastic materials to be coated on the outside of rotor iron core, the rotor iron core of rotor part is in use made directly to contact with fluid such as the aqueous phase of outside, thus there will not be the problems such as corrosion, and the occasion being suitable for environmental conditions rather harsh uses.
It should be noted that: above embodiment is only for illustration of the present invention and unrestricted technological scheme described in the invention, although this specification reference the above embodiments are to present invention has been detailed description, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify to the present invention or equivalent replacement, and all do not depart from technological scheme and the improvement thereof of the spirit and scope of the present invention, all should be encompassed in right of the present invention.
Claims (8)
1. an electronic water pump, comprises frame, separation sleeve, stator component, rotor part; Space in described electronic water pump is separated into two cavitys by described separation sleeve: holding cavity and fluid chamber, described fluid chamber and holding cavity isolated and make the fluid of fluid chamber can not flow to holding cavity; Described rotor part is positioned at described fluid chamber, and described stator component is fixedly installed in described holding cavity; Described rotor part comprises rotor iron core, blade injection molding body, rotating shaft, and described rotor part is moulding; Described rotor iron core comprises rotor body portion and even number of rotor salient pole; Described stator component comprises stator and multiple winding, described stator comprises stator body portion and even number stator salient poles, each stator salient poles is wound with described winding, described stator salient poles relative stator main body portion is near rotor with salient pole, and rotor with salient pole relative rotor main body portion is near described stator salient poles; When described electronic water pump action, multiple windings of stator component are energized in certain sequence respectively, and have at least two windings to be energized during energising simultaneously, and drive described rotor part to rotate.
2. electronic water pump as claimed in claim 1, it is characterized in that, described rotor part does not comprise permanent magnet material, and described rotor iron core is that silicon steel sheet connects through punch process and through riveted joint or hasp or is welded and fixed and formed or use the powder metallurgy pressing of high magnetic permeability to make; Described rotor part also comprises plastic cushion, and plastic cushion is arranged between adjacent rotor with salient pole; Described stator salient poles and rotor with salient pole are all radially evenly arranged, described stator is that silicon steel sheet connects through punch process and through riveted joint or hasp or is welded and fixed and formed or use the powder metallurgy pressing of high magnetic permeability to make, and the quantity of described stator salient poles is greater than the quantity of rotor with salient pole.
3. electronic water pump as claimed in claim 2, it is characterized in that, described rotor part is that rotor iron core, rotating shaft, plastic cushion are fitted together the integrative-structure formed through injection moulding, and described blade injection molding body by coated to rotor iron core, plastic cushion, and forms clad in the outside of rotor iron core.
4. electronic water pump as claimed in claim 3, it is characterized in that, described rotor iron core and or plastic cushion at least one end in two ends of axis be provided with lack part, when rotor part is shaping, plastic materials is filled or is at least partly filled described lack part, and this part plastic materials is the reinforcement structure that the part of blade injection molding body forms rotor part.
5. the electronic water pump as described in as arbitrary in claim 1-4, it is characterized in that, described rotating shaft is being provided with groove with the position that described blade injection molding body is combined or described rotating shaft is being processed into helical or reticular structure with the outer surface at the position that described blade injection molding body is combined; Described rotor part forms blade part in one end of rotor iron core axis, and comprises end clad at the other end of axis, and blade part and end clad are structure as a whole.
6. the electronic water pump as described in as arbitrary in claim 1-4, it is characterized in that, the frame of described electronic water pump comprises the first housing and the second housing, and the first housing is provided with fluid inlet and outlet; Described second housing and separation sleeve form described holding cavity, and the first housing and separation sleeve form fluid chamber; Heat sink, electronic circuit board, capacitor is also fixedly installed in described holding cavity.
7. the electronic water pump as described in as arbitrary in the claims, it is characterized in that, described stator component comprises three groups or four groups of stator salient poles, often organize stator salient poles and comprise symmetrically arranged two stator salient poles, each stator salient poles is respectively wound with a winding, two windings often organizing stator salient poles are that serial or parallel connection is arranged, and when electronic action, in this group stator salient poles, the winding of coiling is energized simultaneously.
8. the electronic water pump as described in as arbitrary in claim 1-6, it is characterized in that, described stator component comprises three groups of stator salient poles, often organize stator salient poles and at least comprise four stator salient poles arranged symmetrically and evenly, each stator salient poles is respectively wound with a winding, four windings often organizing stator salient poles are serial or parallel connection or arrange with another two winding parallels after connecting between two again, and when electronic action, in this group stator salient poles, the winding of coiling is energized simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425454.3A CN105370582A (en) | 2014-08-26 | 2014-08-26 | Electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410425454.3A CN105370582A (en) | 2014-08-26 | 2014-08-26 | Electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370582A true CN105370582A (en) | 2016-03-02 |
Family
ID=55373092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410425454.3A Pending CN105370582A (en) | 2014-08-26 | 2014-08-26 | Electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114583881A (en) * | 2022-03-02 | 2022-06-03 | 安徽智泓净化科技股份有限公司 | Booster pump with brushless motor for reverse osmosis water purifier |
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| JP2008043099A (en) * | 2006-08-08 | 2008-02-21 | Toyota Motor Corp | Rotating motor |
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| CN114583881A (en) * | 2022-03-02 | 2022-06-03 | 安徽智泓净化科技股份有限公司 | Booster pump with brushless motor for reverse osmosis water purifier |
| CN114583881B (en) * | 2022-03-02 | 2023-11-14 | 安徽智泓净化科技股份有限公司 | Booster pump with brushless motor for reverse osmosis water purifier |
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Effective date of registration: 20170509 Address after: 310018 No. 301, No. 12, Hangzhou economic and Technological Development Zone, Zhejiang Province Applicant after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 289-2, Hangzhou economic and Technological Development Zone, Zhejiang, No. 12 Applicant before: Hangzhou Sanhua Institute Co., Ltd. |
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Application publication date: 20160302 |