CN108757578A - Heat radiating type electronic water pump - Google Patents
Heat radiating type electronic water pump Download PDFInfo
- Publication number
- CN108757578A CN108757578A CN201810370737.0A CN201810370737A CN108757578A CN 108757578 A CN108757578 A CN 108757578A CN 201810370737 A CN201810370737 A CN 201810370737A CN 108757578 A CN108757578 A CN 108757578A
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- China
- Prior art keywords
- rotor part
- pump
- stator
- lower rotor
- water pump
- 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.)
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention relates to a kind of heat radiating type electronic water pumps,Stator is fixedly mounted in pump chamber,Lower rotor part impeller is rotatablely installed in pump cover,Lower rotor part impeller is coaxially disposed with stator,Rotor is coaxially fixedly mounted on lower rotor part impeller,Stator,Rotor and the axially aligned distribution of lower rotor part impeller,Water pump structure is compact,Magnetic flux enters stator from the N grades of rotor by air gap,Enter the poles S of rotor by air gap after stator,Form closed magnetic circuit,After electronic water pump is powered,Stator generates rotating excitation field,Electromagnetic torque is generated to drive lower rotor part wheel rotation with the permanent magnet in rotor,After lower rotor part wheel rotation,Flow runs through entire water pump in the axial direction,Heat on water pump can directly be taken away by flow,Preferable cooling effect is played to water pump,The electronic water pump of the present invention is compact-sized,Water pumping efficiency is high,Good heat dissipation effect,Suitable for electric vehicle,Renewable energy system and industrial equipment etc. require the occasion of spaces compact.
Description
Technical field
The present invention relates to pumps, and more particularly, to electronic water pump technical field, the present invention provides a kind of heat radiating type electronic water pump.
Background technology
Electronic water pump has service life long, small, light-weight, power height and low in energy consumption etc. has advantage, application field
Extensively, be usually used in the cooling recirculation system and water system of vehicle, electronic water pump during the work time, electronic control unit meeting
Heat is generated, is increased so as to cause the operating temperature of the electronic component on electronic control unit, some electronic components can be because
It is damaged for operating temperature is excessively high, it is therefore desirable to which electron control unit cools down, to ensure the stability of electronic water pump work；
Currently, the heat dissipation of a kind of electronic water pump mostly uses metal aluminum hull natural heat dissipation, electronic control unit is installed on electronics
The motor tail portion of water pump, heat dissipation effect is bad, especially can not control list by effective electron rapidly when environment temperature is higher
The heating device heat dissipation of member, keeps electronic component temperature excessively high and damages；
In addition a kind of electronic water pump a kind of turbine rotor electronic water pump as disclosed in China Patent No. 201720512649.0,
Its rotor is rotatably arranged in pump chamber, and stator is fixed in pump chamber and surrounds rotor, has water inlet, rear pump cover on front pump cover
Upper that there is water outlet, water inlet and water outlet to be connected to pump chamber, running through on rotor has the hollow cavity being connected to pump chamber, hollow
Be fixed in cavity it is several for by the blade of the Liquid extracting of water inlet to water outlet, when pump operation, flow from
Water inlet flows into pump chamber, and is flowed into water outlet from the hollow cavity of rotor so that and flow runs through entire water pump in the axial direction,
Heat on water pump can directly be taken away by flow, to realize the heat dissipation to water pump；But rotor and fixed in above-mentioned electronic water pump
Son coaxial arrangement, flow out of hollow cavity on rotor by flow it is less, water pump pump it is less efficient；If by rotor
It does greatly, then the volume of water pump is larger, and the use of water pump is not nimble, and applicable situation relatively limits to.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome rotor and stator coaxial arrangement in existing electronic water pump,
Water pump pumps less efficient, and water pump volume is larger, and the not nimble problem of use provides a kind of heat radiating type electronic water pump.
The technical solution adopted by the present invention to solve the technical problems is：A kind of heat radiating type electronic water pump, including pump case, institute
It states on pump case through there is a pump chamber, the both ends of pump chamber are covered with front pump cover and rear pump cover respectively on the pump case, on the front pump cover
With water inlet, there is water outlet, the water inlet to be connected to pump chamber with the water outlet, the pump chamber on the rear pump cover
It is inside installed with stator, lower rotor part impeller is rotatablely equipped in the rear pump cover, the lower rotor part impeller and the stator are same
Axis is arranged, and is coaxially installed with lower rotor part on the lower rotor part impeller, the stator, lower rotor part and lower rotor part impeller are in an axial direction
Arranged distribution.
Stator is fixedly mounted in pump chamber, lower rotor part impeller is rotatablely installed in pump cover for the heat radiating type electronic water pump of the present invention,
Lower rotor part impeller is coaxially disposed with stator, and lower rotor part, stator, lower rotor part and lower rotor part are coaxially fixedly mounted on lower rotor part impeller
The axially aligned distribution of impeller, water pump it is compact-sized, magnetic flux enters stator from the N grades of lower rotor part by air gap, pass through
Entering the poles S of lower rotor part after stator by air gap, forms closed magnetic circuit, after electronic water pump is powered, stator generates rotating excitation field, with
Permanent magnet in stator forms electromagnetic torque to drive lower rotor part wheel rotation, and after lower rotor part wheel rotation, flow is from water inlet
Mouth flows into pump chamber, and the hollow cavity of lower rotor part is flowed into from the hollow cavity of stator, in the hollow cavity and lower rotor part of stator
Cavity body is axially through increasing the flow of flow, improve the water pumping efficiency of water pump, hollow cavity stream of the flow from lower rotor part
Enter in rear pump cover, finally flowed out by water outlet, flow runs through entire water pump in the axial direction, and the heat on water pump can be directly by water
Stream is taken away, and preferable cooling effect is played to water pump, and electronic water pump of the invention is compact-sized, and water pumping efficiency is high, heat dissipation effect
Fruit is good, and the occasion of spaces compact is required suitable for electric vehicle, renewable energy system and industrial equipment etc..
Upper rotor part impeller is rotatablely equipped in the pump chamber, the upper rotor part impeller, stator and lower rotor part impeller are coaxially set
Set, be coaxially installed with upper rotor part on the upper rotor part impeller, the upper rotor part impeller, upper rotor part, stator, lower rotor part and under
The axially aligned distribution of impeller of rotor, water pump it is compact-sized, magnetic flux enters stator from the N grades of lower rotor part by air gap,
By entering the poles S of upper rotor part after stator by air gap, is then sent out from the poles N of upper rotor part and enter stator by air gap, passed through
The poles S for entering lower rotor part after stator by air gap are eventually returned to the poles N of lower rotor part, form closed magnetic circuit, and electronic water pump is powered
Afterwards, stator generates the permanent magnet in rotating excitation field, with stator and forms electromagnetic torque to drive upper rotor part impeller and lower rotor part leaf
Wheel rotation, after upper rotor part impeller and lower rotor part wheel rotation, flow flows into pump chamber from water inlet, and from the hollow cavity stream of stator
Enter the hollow cavity of lower rotor part, the hollow cavity of stator and the hollow cavity of lower rotor part axially through, increase the flow of flow,
The water pumping efficiency of water pump is improved, flow flows into the hollow cavity of upper rotor part from the hollow cavity of upper rotor part impeller, then from lower turn
The hollow cavity of son flows into rear pump cover, is finally flowed out by water outlet, and flow is in the axial direction on entire water pump, water pump
Heat can directly be taken away by flow, and preferable cooling effect is played to water pump.
Further, be installed with PCB fixed plates between the pump case and the front pump cover, the PCB fixed plates with
Sealing ring is installed between the front pump cover and forms sealed chamber, pcb board, the front pump cover are installed in the sealed chamber
On be installed with connector, the connector is electrically connected with pcb board, by plug connector connection circuit to make water pump be powered.
Further, annular groove is provided in the pump case, the stator is arranged by insulation framework in the annular
In groove, the opening of annular groove is covered with stator end cap on the pump case.
Further, the lower rotor part impeller is rotatably installed in by shaft in the rear pump cover.
Further, the upper rotor part impeller is rotatably installed in by shaft in the pump chamber.
The beneficial effects of the invention are as follows:The heat radiating type electronic water pump of the present invention, is fixedly mounted stator in pump chamber, in pump cover
It is rotatablely installed lower rotor part impeller, lower rotor part impeller is coaxially disposed with stator, and lower rotor part is coaxially fixedly mounted on lower rotor part impeller,
Stator, lower rotor part and the axially aligned distribution of lower rotor part impeller, water pump it is compact-sized, magnetic flux from the N grades of lower rotor part through
It crosses air gap and enters stator, enter the poles S of lower rotor part by air gap after stator, form closed magnetic circuit, after electronic water pump is powered,
Stator generates rotating excitation field, and lower rotor part cutting stator rotating excitation field produces induced electromotive force and electric current, and formed electromagnetic torque from
And lower rotor part wheel rotation is driven, after lower rotor part wheel rotation, flow flows into pump chamber from water inlet, and from the hollow cavity of stator
Flow into the hollow cavity of lower rotor part, the hollow cavity of stator and the hollow cavity of lower rotor part are axially through increasing the stream of flow
Amount improves the water pumping efficiency of water pump, and flow is flowed into rear pump cover from the hollow cavity of lower rotor part, finally flowed out by water outlet,
Flow runs through entire water pump in the axial direction, and the heat on water pump can directly be taken away by flow, and preferable dissipate is played to water pump
Heat effect, electronic water pump of the invention is compact-sized, and water pumping efficiency is high, good heat dissipation effect, is suitable for electric vehicle, renewable energy
Source system and industrial equipment etc. require the occasion of spaces compact.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the two-dimensional representation of embodiment 1 in the present invention；
Fig. 2 is the flow schematic diagram of embodiment 1 in the present invention；
Fig. 3 is the magnetic circuit schematic diagram of embodiment 1 in the present invention；
Fig. 4 is the two-dimensional representation of embodiment 2 in the present invention；
Fig. 5 is the flow schematic diagram of embodiment 2 in the present invention；
Fig. 6 is the magnetic circuit schematic diagram of embodiment 2 in the present invention.
In figure：1. pump case, 2. pump chambers, 3. front pump covers, 4. rear pump covers, 5. water inlets, 6. water outlets, 7. stators, 8. lower turns
Cotyledon wheel, 9. lower rotor parts, 10.PCB fixed plates, 11.PCB plates, 12. connectors, 13. insulation frameworks, 14. stator end caps, 15. turns
Axis, 16. upper rotor part impellers, 17. upper rotor parts.
Specific implementation mode
Presently in connection with attached drawing, the present invention will be further described in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Embodiment 1：
A kind of heat radiating type electronic water pump as shown in Figure 1, including pump case 1, through having pump chamber 2, the pump on the pump case 1
The both ends of pump chamber 2 are covered with front pump cover 3 and rear pump cover 4 respectively on shell 1, have water inlet 5 on the front pump cover 3, are pumped after described
There is water outlet 6, the water inlet 5 to be connected to pump chamber 2 with the water outlet 6, are installed in the pump chamber 2 on lid 4
Stator 7 is provided with annular groove in the pump case 1, and the stator 7 is arranged by insulation framework 13 in the annular groove,
The opening of annular groove is covered with stator end cap 14 on the pump case 1, and lower rotor part impeller is rotatablely equipped in the rear pump cover 4
8, the lower rotor part impeller 8 is rotatably installed in by shaft 15 in the rear pump cover 4, the lower rotor part impeller 8 and the stator 7
It is coaxially disposed, lower rotor part 9, the stator 7, lower rotor part 9 and lower rotor part impeller is coaxially installed on the lower rotor part impeller 8
8 axially aligned distributions.
Be installed with PCB fixed plates 10 between the pump case 1 and the front pump cover 3, the PCB fixed plates 10 with it is described
Sealing ring is installed between front pump cover 3 and forms sealed chamber, pcb board 11, the front pump cover 3 are installed in the sealed chamber
On be installed with connector 12, the connector 12 is electrically connected with pcb board 11, by plug connector connection circuit to make water pump
It is powered.
Stator 7 is fixedly mounted in pump chamber 2, lower rotor part leaf is rotatablely installed in pump cover for the heat radiating type electronic water pump of the present invention
Wheel 8, lower rotor part impeller 8 and stator 7 are coaxially disposed, and are coaxially fixedly mounted lower rotor part 9 on lower rotor part impeller 8, stator 7, lower turn
Son 9 and the 8 axially aligned distribution of lower rotor part impeller, water pump it is compact-sized, magnetic flux is from the N grades of lower rotor part 9 by air gap
Into stator 7, enter the poles S of lower rotor part 9 by air gap after stator 7, as shown in figure 3, the poles N of lower rotor part 9 are eventually returned to,
Closed magnetic circuit is formed, after electronic water pump is powered, stator 7 generates rotating excitation field, 9 cutting stator 7 of lower rotor part and the permanent magnetism in stator 7
Body forms electromagnetic torque to drive lower rotor part impeller 8 to rotate, and after lower rotor part impeller 8 rotates, flow flows into pump chamber from water inlet 5
2, as shown in Fig. 2, and flowing into the hollow cavity of lower rotor part 9, the hollow cavity of stator 7 and lower rotor part 9 from the hollow cavity of stator 7
Hollow cavity axially through increasing the flow of flow, improve the water pumping efficiency of water pump, flow is hollow from lower rotor part 9
Cavity flows into rear pump cover 4, is finally flowed out by water outlet 6, and flow runs through entire water pump in the axial direction, and the heat on water pump can
It is directly taken away by flow, preferable cooling effect is played to water pump, electronic water pump of the invention is compact-sized, water pumping efficiency
Height, good heat dissipation effect require the occasion of spaces compact suitable for electric vehicle, renewable energy system and industrial equipment etc..
Embodiment 2：
Embodiment 2 as shown in Figure 4 and embodiment 1 difference lies in：Upper rotor part impeller is rotatablely equipped in the pump chamber 2
16, the upper rotor part impeller 16, stator 7 and lower rotor part impeller 8 are coaxially disposed, and are coaxially fixedly mounted on the upper rotor part impeller 16
There are upper rotor part 17,8 axially aligned points of the upper rotor part impeller 16, upper rotor part 17, stator 7, lower rotor part 9 and lower rotor part impeller
Cloth, water pump it is compact-sized, magnetic flux enters stator 7 from the N grades of lower rotor part 9 by air gap, by after stator 7 by air gap
Into the poles S of upper rotor part 17, then sent out from the poles N of upper rotor part 17 and enter stator 7 by air gap, by after stator 7 by gas
Gap enters the poles S of lower rotor part 9, is eventually returned to the poles N of lower rotor part 9, as shown in fig. 6, forming closed magnetic circuit, electronic water pump is powered
Afterwards, stator 7 generates the permanent magnet in rotating excitation field, with stator 7 and forms electromagnetic torque to drive upper rotor part impeller 16 and lower turn
Cotyledon wheel 8 rotates, and after upper rotor part impeller 16 and lower rotor part impeller 8 rotate, flow flows into pump chamber 2 from water inlet 5, and from stator 7
Hollow cavity flow into the hollow cavity of lower rotor part 9, the hollow cavity of stator 7 and the hollow cavity of lower rotor part 9 are axially through such as
Shown in Fig. 5, the flow of flow is increased, improves the water pumping efficiency of water pump, hollow cavity stream of the flow from upper rotor part impeller 16
Enter the hollow cavity of upper rotor part 17, then flowed into rear pump cover 4 from the hollow cavity of lower rotor part 9, is finally flowed out by water outlet 6, water
Stream runs through entire water pump in the axial direction, and the heat on water pump can directly be taken away by flow, and preferable heat dissipation is played to water pump
Effect.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (6)
1. a kind of heat radiating type electronic water pump, it is characterised in that：Running through including pump case (1), on the pump case (1) has pump chamber (2), institute
The both ends for stating pump chamber (2) on pump case (1) are covered with front pump cover (3) and rear pump cover (4) respectively, have on the front pump cover (3) into
The mouth of a river (5), has water outlet (6) on the rear pump cover (4), the water inlet (5) and the water outlet (6) with pump chamber (2)
Connection, the pump chamber (2) is interior to be installed with stator (7), and lower rotor part impeller (8), institute are rotatablely equipped in the rear pump cover (4)
It states lower rotor part impeller (8) to be coaxially disposed with the stator (7), lower rotor part is coaxially installed on the lower rotor part impeller (8)
(9), the stator (7), lower rotor part (9) and lower rotor part impeller (8) axially aligned distribution.
2. heat radiating type electronic water pump as described in claim 1, it is characterised in that：It is rotatablely equipped in the pump chamber (2)
Cotyledon wheel (16), the upper rotor part impeller (16), stator (7) and lower rotor part impeller (8) coaxial arrangement, the upper rotor part impeller
(16) upper rotor part (17), the upper rotor part impeller (16), upper rotor part (17), stator (7), lower rotor part are coaxially installed on
(9) and lower rotor part impeller (8) axially aligned distribution.
3. heat radiating type electronic water pump as described in claim 1, it is characterised in that：The pump case (1) and the front pump cover (3) it
Between be installed with PCB fixed plates (10), form sealed chamber between the PCB fixed plates (10) and the front pump cover (3), institute
It states and is installed with pcb board (11) in sealed chamber, connector (12) is installed on the front pump cover (3), it is described to patch
Part (12) is electrically connected with pcb board (11).
4. heat radiating type electronic water pump as described in claim 1, it is characterised in that：It is provided with annular groove in the pump case (1),
The stator (7) is arranged by insulation framework (13) in the annular groove, the opening of annular groove on the pump case (1)
It is covered with stator end cap (14).
5. heat radiating type electronic water pump as described in claim 1, it is characterised in that：The lower rotor part impeller (8) passes through shaft
(15) it is rotatably installed in the rear pump cover (4).
6. heat radiating type birotor electronic water pump as claimed in claim 2, it is characterised in that：The upper rotor part impeller (16) passes through
Shaft (15) is rotatably installed in the pump chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370737.0A CN108757578A (en) | 2018-04-24 | 2018-04-24 | Heat radiating type electronic water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810370737.0A CN108757578A (en) | 2018-04-24 | 2018-04-24 | Heat radiating type electronic water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757578A true CN108757578A (en) | 2018-11-06 |
Family
ID=64011328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810370737.0A Pending CN108757578A (en) | 2018-04-24 | 2018-04-24 | Heat radiating type electronic water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757578A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155969A (en) * | 1996-07-29 | 2000-12-05 | Kyocera Corporation | Centrifugal pump for pumping blood and other shear-sensitive liquids |
| US6232696B1 (en) * | 1999-07-23 | 2001-05-15 | Amotron Co., Ltd. | Vacuum generating apparatus with multiple rotors |
| US20110116947A1 (en) * | 2009-11-19 | 2011-05-19 | Hyundai Motor Company | Electric water pump |
| CN103256228A (en) * | 2013-04-22 | 2013-08-21 | 东莞市深鹏电子有限公司 | Mini-sized direct current computer water-cooling water pump |
| CN105443400A (en) * | 2016-01-26 | 2016-03-30 | 河北深海电器有限公司 | Electronic water pump |
| CN206708031U (en) * | 2017-03-31 | 2017-12-05 | 珠海市浩泰电子科技有限公司 | A kind of outer geometric pattern segmented water pump of brush DC |
| CN107476987A (en) * | 2017-07-31 | 2017-12-15 | 广东威灵电机制造有限公司 | Electronic water pump |
| CN206830466U (en) * | 2017-05-09 | 2018-01-02 | 珠海万伏科技有限公司 | turbine rotor electronic water pump |
-
2018
- 2018-04-24 CN CN201810370737.0A patent/CN108757578A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6155969A (en) * | 1996-07-29 | 2000-12-05 | Kyocera Corporation | Centrifugal pump for pumping blood and other shear-sensitive liquids |
| US6232696B1 (en) * | 1999-07-23 | 2001-05-15 | Amotron Co., Ltd. | Vacuum generating apparatus with multiple rotors |
| US20110116947A1 (en) * | 2009-11-19 | 2011-05-19 | Hyundai Motor Company | Electric water pump |
| CN103256228A (en) * | 2013-04-22 | 2013-08-21 | 东莞市深鹏电子有限公司 | Mini-sized direct current computer water-cooling water pump |
| CN105443400A (en) * | 2016-01-26 | 2016-03-30 | 河北深海电器有限公司 | Electronic water pump |
| CN206708031U (en) * | 2017-03-31 | 2017-12-05 | 珠海市浩泰电子科技有限公司 | A kind of outer geometric pattern segmented water pump of brush DC |
| CN206830466U (en) * | 2017-05-09 | 2018-01-02 | 珠海万伏科技有限公司 | turbine rotor electronic water pump |
| CN107476987A (en) * | 2017-07-31 | 2017-12-15 | 广东威灵电机制造有限公司 | Electronic water pump |
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Effective date of registration: 20181115 Address after: 213000 No. 15 Tenglong Road, Wujin Economic Development Zone, Changzhou City, Jiangsu Province Applicant after: Changzhou Tenglong automobile energy saving Technology Co. Ltd. Address before: Room 105-25353, No. 6 Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province Applicant before: Zhuhai Wan Fu Technology Co., Ltd. |
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