CN101655095A - Electric water pump - Google Patents
Electric water pump Download PDFInfo
- Publication number
- CN101655095A CN101655095A CN200910167535A CN200910167535A CN101655095A CN 101655095 A CN101655095 A CN 101655095A CN 200910167535 A CN200910167535 A CN 200910167535A CN 200910167535 A CN200910167535 A CN 200910167535A CN 101655095 A CN101655095 A CN 101655095A
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- CN
- China
- Prior art keywords
- water
- communicated
- casing
- space
- rotating shaft
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000004891 communication Methods 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims description 23
- 230000005855 radiation Effects 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 4
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an electric water pump comprising a casing, a sleeve barrel, a water guide cover and a water pumping mechanism. The casing comprises a communication pipe body which is convexly arranged at the peripheral face of a casing body in a mode of extending back and forth and is provided with a communication flow passage in a penetrating way, and the casing body is provided with athrough hole which is communicated with the back end of the communication flow passage. The sleeve barrel is provided with a communication hole which is communicated with the inside of the sleeve barrel and the through hole. The water guide cover is installed and fixed at the front ends of the casing and the sleeve barrel and is provided with a diversion hole which is communicated between a waterinlet of the water guide cover and the communication flow passage. The water pumping mechanism comprises a rotating shaft which is pivoted in the sleeve barrel and extends into a water pumping space,and the rotating shaft is provided with a heat-radiation flow passage which is communicated with the communication hole and the water pumping space in a penetrating way. By the structural design ofarranging the communication pipe body at the external surface of the casing body convexly, the internal temperature of the electric water pump can be effectively lowered, and the service life of the electric water pump and the heat-radiation efficiency of the electric water pump to an engine are relatively enhanced.
Description
Technical field
The present invention relates to a kind of water pump, particularly relate to a kind of electric water pump.
Background technique
In automobile, for reducing the engine running temperature, the electric water pump that can see through a cooling system is taken out water tank liquid purt in the coolant flow channel that imports engine, removes engine heat energy in order to loose.But in the electric water pump operation, its stator and internal control circuit all can produce heat energy, though the stator external heat can externally conduct or transmit in the cross-ventilation mode, and auto-radiating, but stator interior heat energy can build up, cause the inner high temperature that produces of electric water pump, for avoiding the too high fault of electric water pump self-temperature, and it is too high to cause purt to take out the water tank liquid temp that imports engine, cause heat dissipation lower, some electric water pump can be gone into water tank liquid in its inner water conservancy diversion at present, in order to reduce the electric water pump self-temperature, prolong electric water pump working life, and improve the engine radiating efficiency.
As shown in Figure 1, the heat dissipation design of general electric water pump 1, be water guide cover 11 wear a plurality of respectively with its perforation 111 that is communicated with the internal chamber 100 of rotor 13 in order to ccontaining rotating shaft 12, the draw water part water tank liquid in space 101 of purt suction 111 is entered in this internal chamber 100 via perforation, and between this internal chamber 100 and the space 101 that draws water, reflux, by rotor 13 and rotating shaft 12 are soaked in the water tank liquid, remove the heat energy of self-controller 14 and stator 15 to loose.But during the actual use of above-mentioned heat dissipation design, after internal chamber 100 is passed through full water, just can advance because of water tank liquid, going out internal chamber 100 all is via described perforation 111, and cause the backflow of water tank liquid unstable and not smooth easily, cause the water tank liquid after being heated in the internal chamber 100 to be difficult for passing back into again the space 101 that draws water, and the relative low temperature water tank liquid in the space 101 that draws water also is difficult for entering internal chamber 100 again, and then can't effectively loose and remove electric water pump 1 internal heat energy, so that electric water pump 1 bulk temperature is still higher, cause the water tank liquid temp of purt suction engine (figure do not show) higher, so quite limited for the lifting of the radiating efficiency of engine.
Summary of the invention
The objective of the invention is is providing a kind of electric water pump of excellent in heat dissipation effect.
Electric water pump of the present invention comprises a casing, one and is installed on the hollow sleeve in the casing, a water guide cover that is installed between casing and barrel forward end, and the mechanism that draws water that is installed between sleeve, casing and water guide cover.This casing comprises opening hollow shell body forward, be based in shell body outer circumferential face before and after reaching one with extending and bend the connection body that extension is fixed in shell body aft bulkhead, this connection body has a connection runner that extends along its length direction, this shell body have one axially run through thereafter end wall and with the perforation that is communicated with the connection of runner open rearward end.This sleeve is that opening is installed in this shell body frontward, and this perforation ground of cap seal backward plug-in mounting be fixed in shell body aft bulkhead, and have one and be communicated with its intercommunicating pore inner and this perforation.This water guide cover is this shell body openings of cap seal, be mounted on casing and barrel forward end with being communicated with runner front opening and sleeve openings, and its inside defines the space that draws water, and one be communicated with the space outer periphery that draw water and around the diversion space of the spatially spiral extension that draws water, water guide cover and have one with the water intake of the spatial communication that draws water, the terminal water outlet that is communicated with of the spiral with diversion space, and one be communicated in water intake and be communicated with the conduction hole that also liquid guide flow of water intake can be gone into be communicated with runner between runner.This mechanism that draws water comprises that a coaxial plug-in mounting is hubbed in the sleeve and extends the rotating shaft that penetrates the space that draws water, rotor that is fixed in the rotating shaft and is arranged in sleeve, one forward is fixed in the rotating shaft front end and can be pivoted by the rotating shaft interlock and the impeller, that produce centrifugal suction in the space that draws water is fixed in the shell body and can orders about rotor and drive the stator that rotating shaft pivots, reach one and be mounted in the water guide cover and the controller that is electrically connected with stator, and this rotating shaft is equipped with a heat radiation runner that extends axially and be communicated with this intercommunicating pore and this space that draws water.
Beneficial effect of the present invention is: see through in the prominent structural design of establishing this connection body of this external surface of shell, the liquid that can make heat transmission is before entering rotating shaft, maintain the state of relative low temperature, remove the heat energy that controller and stator are passed to rotating shaft so can effectively loose, so can reduce the electric water pump inside temperature, improve outside its working life relatively, also can improve radiating efficiency relatively engine.
Description of drawings
Fig. 1 is the side-looking generalized section of general electric water pump;
Fig. 2 is an embodiment's of an electric water pump of the present invention stereogram;
Fig. 3 is the stereogram at this another visual angle of embodiment;
Fig. 4 is this embodiment's a side cutaway view.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
Shown in Fig. 2～4, the embodiment of electric water pump of the present invention can take out in order to purt and carry in liquid to one engine (figure does not show), and lower the temperature in order to aid engine.This electric water pump comprises forward hollow casing 3 of an opening, opening and is mounted on the water guide cover 5 that hollow sleeve 4 in the casing 3, cap seal casing 3 and sleeve 4 ground are mounted on casing 3 and sleeve 4 front ends frontward, and the mechanism 6 that draws water that is installed in casing 3, sleeve 4 and the water guide cover 5.
This casing 3 comprises opening hollow shell body 31 forward, and is based in shell body 31 outer circumferential faces before and after one with extending and bends the connection body 32 that extends aft bulkhead 311 trailing flanks that are fixed in shell body 31.These connection body 32 rear ends are the axis parts that are positioned at shell body 31 aft bulkheads 311, and its inside is equipped with a hollow of extending along its length direction and is communicated with runner 320, and these shell body 31 aft bulkheads 311 axis parts axially are equipped with a perforation 312 that is communicated with the connection of runner 320 open rearward end with this.
This sleeve 4 has the hollow fixing part 41 that shell body 31 aft bulkheads 311 are fixed in this perforation 312 ground intercalation backward of a cap seal, reaching one is fixed in fixing part 41 front periphery and extends the hollow tube body 42 that passes shell body 31 front ends forward, these tube body 42 calibers are greater than fixing part 41 calibers, and this fixing part 41 has one and extends axially and be communicated with its intercommunicating pore 411 inner and this perforation 312.
This water guide cover 5 comprises an interior lid 51 that is mounted on casing 3 and sleeve 4 front ends, and outer cover 52 that is mounted on interior lid 51 front sides, and has a water intake forward 501 and a water outlet 502 that is positioned at its side that is positioned at the center, and lid 51 matches with outer cover 52 and defines a space 503 that draws water that is communicated in this water intake 501 in being somebody's turn to do, one is communicated with space 503 outer periphery that draw water and is spirally extended to the diversion space 504 of this water outlet 502 around the space 503 that draws water, and one is communicated in this water intake 501 and is communicated with conduction hole 505 between runner 320 front openings with this.
This outer cover 52 has a lid and establishes the lid our department 521 of being fixed on the interior lid 51, and protuberance 522 that is based in these lid our department 521 outer surfaces, this water intake 501 all is to be arranged in this lid our department 521 with water outlet 502, this conduction hole 505 has front and back and extends the Connectivity Section 506 that is arranged in these interior lid 51 side positions and is communicated with the connection of runner 320 front openings with this, and a L font Drainage Section 507 that is arranged in this protuberance 522 and is communicated with this water intake 501 and these Connectivity Section 506 front ends.
This mechanism 6 that draws water comprises a stator 61 that is mounted on shell body 31 inner peripheral surfaces, extend the hollow axle 62 that the ground plug-in mounting is hubbed in the sleeve 4 and extends into the space 503 that draws water forward before and after one, a socket is fixed in the rotating shaft 62 and also can be driven and the rotor 63 of drive rotating shaft 62 pivots by this stator 61, tube body 42 rear end section that are mounted on this sleeve 4 and the socket bearing 64 in this rotating shaft 62 that is pivoted, socket is fixed in the rotating shaft 62 and is arranged in sleeve 4 and plug-in mounting is hubbed at this lid 51 location unit 65 forward, a controller 66 that is mounted in this in lid 51 and is electrically connected on this stator 61, and socket impeller 67 of being fixed in these rotating shaft 62 front ends and can being pivoted by rotating shaft 62 interlocks.
Because this controller 66 drives stators 61, to drive the technology that rotating shafts 62 pivot be general technology and order about rotor 63, therefore no longer describes in detail.
This location unit 65 is in order to rotating shaft 62 is positioned on the sleeve 4, prevents that the rotating shaft 62 of high speed rotating from producing axial displacement.
This rotating shaft 62 is equipped with a heat radiation runner 620 that extends axially and be communicated with this draw water space 503 and this intercommunicating pore 411, this impeller 67 can be pivoted by rotating shaft 62 interlocks, and in this draws water space 503, produce centrifugal suction, this centrifugal suction can be attracted into liquid in this space 503 that draws water with this heat radiation runner 620 from this water intake 501, then the centrifugal that sucks is imported this diversion space 504, and flow out this water outlet 502 along this diversion space 504.Liquid is inhaled into this space 503 that draws water via water intake 501 when, this centrifugal suction also can produce negative-pressure sucking in the connection runner 320 that is communicated in this heat radiation runner 620 in regular turn and this conduction hole 505, cause the partially liq that enters water intake 501 to be inhaled in the conduction hole 505, and this connection runner 320 of flowing through in regular turn, perforation 312 and intercommunicating pore 411, and enter in the heat radiation runner 620, pass back into the space 503 that draws water at last again, after the liquid of relative low temperature mixes, discharge by water outlet 502.
Because wearing the connection body 32 of this connection runner 320 is to be based in this shell body 31 outer surfaces, so before being communicated with the heat radiation runner 620 of rotating shaft 62 that liquid in the runner 320 enter relatively-high temperature, can maintain the state of relative low temperature, remove the heat energy that is passed to this rotating shaft 62 so can effectively loose, whereby, see through to continue with the design of the flow of liquid of relative low temperature through this rotating shaft 62, just can effectively reduce rotating shaft 62 temperature, just can loose fast and be passed to the heat energy of rotating shaft 62 except that controller 66 and stator 61 via shell body 31 and water guide cover 5, so can reduce stator 61 fast, rotating shaft 62, controller 66, the temperature of water guide cover 5 and shell body 31 just reduces the electric water pump bulk temperature.
As shown in table 1, carry out actual operation relatively with electric water pump of the present invention and general electric water pump, respectively controller 66 ambient temperature are monitored, because after electric water pump came into operation, it is stable that its inside can reach heat energy fast, so that do not need detection time is oversize.Electric water pump of the present invention and general electric water pump all are to be set in 80 ℃ via the initial temperature of the liquid that water intake 501 is inhaled into, after the result shows general electric water pump running, its controller environment temperature is (about 365.6 ° of K) up to 92.6 ℃, but electric water pump of the present invention measured controller 66 environment temperatures after the same running time only reach 86.1 ℃ (about 359.1 ° of K), be starkly lower than general electric water pump, confirm the structural design of electric water pump of the present invention, can loose fast really and remove the heat energy that controller 66 actions produce.
In sum, see through in prominent this connection body 32 of establishing of these shell body 31 outer surfaces, and can be guided to structural design in this rotating shaft 62 via shell body 31 outsides in order to the partially liq of the water intake 501 that will enter outer cover 52, can make liquid before entering the heat radiation runner 620 of rotating shaft 62, can maintain the state of relative low temperature, so can be in the electric water pump operation, continue the diffusing heat energy that is passed to rotating shaft 62 except that controller 66 and stator 61 of liquid with relative low temperature, and then can be effectively and reduce controller 66 environment temperatures apace, so can reduce the electric water pump inside temperature, except improving the working life of electric water pump relatively, the heat transmission liquid that electric water pump is imported in the engine can maintain the lower temperature state, improve radiating efficiency relatively to engine, quite convenient and practical.
Claims (3)
1. electric water pump, it is characterized in that: comprise a casing, a hollow sleeve that is arranged in the casing, a water guide cover that is arranged at casing and barrel forward end, reach one and be arranged at casing, the mechanism that draws water between sleeve and water guide cover, described casing comprises opening hollow shell body forward, be based in shell body outer circumferential face before and after reaching one with extending and bend the connection body that extension is fixed in shell body aft bulkhead, described connection body has a connection runner that extends along its length direction, described shell body have one axially run through end wall thereafter and be communicated with the perforation that the runner open rearward end is communicated with, described sleeve is that opening is installed in the described shell body frontward, and the described perforation of cap seal ground plug-in mounting backward is fixed in shell body aft bulkhead, and have one and be communicated with its intercommunicating pore inner and described perforation, described water guide cover is a cap seal shell body openings, be mounted on casing and barrel forward end with being communicated with runner front opening and sleeve openings, and its inside defines the space that draws water, and one be communicated with the space outer periphery that draw water and around the diversion space of the spatially spiral extension that draws water, water guide cover also has a water intake with the spatial communication that draws water, the terminal water outlet that is communicated with of spiral with diversion space, reaching one is communicated in water intake and is communicated with the conduction hole that also liquid guide flow of water intake can be gone into described connection runner between runner, the described mechanism that draws water comprises the rotating shaft that a coaxial plug-in mounting is hubbed in the sleeve and extension penetrates the space that draws water forward, a rotor that is fixed in the rotating shaft and is arranged in sleeve, one is fixed in the rotating shaft front end and can be pivoted by the rotating shaft interlock and produce the impeller of centrifugal suction in the space that draws water, a stator that is fixed in the described shell body and can orders about rotor drive rotating shaft pivot, reach one and be mounted in the water guide cover and the controller that is electrically connected with stator, and described rotating shaft is equipped with a heat radiation runner that extends axially and be communicated with described intercommunicating pore and the described space that draws water.
2. electric water pump according to claim 1, it is characterized in that: described water guide cover comprises a cap seal shell body openings, be mounted on the interior lid of casing and barrel forward end with being communicated with runner front opening and sleeve openings, and outer cover that is mounted on interior lid front side, and lid matches with outer cover and defines described space and the diversion space of drawing water in described, described conduction hole have front and back extend through in lid and with the described Connectivity Section that the runner front opening is communicated with and Drainage Section of running through outer cover and being communicated with described water intake and Connectivity Section of being communicated with.
3. electric water pump according to claim 2, it is characterized in that: described outer cover have one be mounted in lid front side and match with interior lid and to define lid our department of described draw water space and diversion space, reach one and protrude in and cover the protuberance that our department's outer surface and its inside define described Drainage Section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101675357A CN101655095B (en) | 2009-08-21 | 2009-08-21 | Electric water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101675357A CN101655095B (en) | 2009-08-21 | 2009-08-21 | Electric water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101655095A true CN101655095A (en) | 2010-02-24 |
| CN101655095B CN101655095B (en) | 2011-12-21 |
Family
ID=41709511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101675357A Expired - Fee Related CN101655095B (en) | 2009-08-21 | 2009-08-21 | Electric water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101655095B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808779A (en) * | 2011-06-03 | 2012-12-05 | 开利泵业(集团)有限公司 | Low-noise water-cooled centrifugal pump |
| CN106640679A (en) * | 2016-11-21 | 2017-05-10 | 广州汽车集团股份有限公司 | Engine electric water pump and vehicle with same |
| CN107740773A (en) * | 2017-09-29 | 2018-02-27 | 广东威灵电机制造有限公司 | Electronic water pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5997261A (en) * | 1997-10-31 | 1999-12-07 | Siemens Canada Limited | Pump motor having fluid cooling system |
| AT502338B1 (en) * | 2005-08-26 | 2009-06-15 | Wilo Ag | PUMP FOR PROMOTING A LIQUID MEDIUM |
| AT502566B1 (en) * | 2005-10-13 | 2007-08-15 | Tcg Unitech Systemtechnik Gmbh | WATER PUMP |
| CN201180663Y (en) * | 2008-04-14 | 2009-01-14 | 常州市武进区湖塘常欣机电经营部 | Swirl shielding type self-suction circulating water pump |
-
2009
- 2009-08-21 CN CN2009101675357A patent/CN101655095B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808779A (en) * | 2011-06-03 | 2012-12-05 | 开利泵业(集团)有限公司 | Low-noise water-cooled centrifugal pump |
| CN106640679A (en) * | 2016-11-21 | 2017-05-10 | 广州汽车集团股份有限公司 | Engine electric water pump and vehicle with same |
| CN106640679B (en) * | 2016-11-21 | 2018-11-23 | 广州汽车集团股份有限公司 | Electric engine water pump and vehicle with it |
| CN107740773A (en) * | 2017-09-29 | 2018-02-27 | 广东威灵电机制造有限公司 | Electronic water pump |
| CN107740773B (en) * | 2017-09-29 | 2019-12-20 | 广东威灵汽车部件有限公司 | Electronic water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101655095B (en) | 2011-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20120821 |