CN203896086U - Multipolar permanent magnet electromotor for shallow water and shallow water type submersible pump employing same - Google Patents
Multipolar permanent magnet electromotor for shallow water and shallow water type submersible pump employing same Download PDFInfo
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- CN203896086U CN203896086U CN201420164253.8U CN201420164253U CN203896086U CN 203896086 U CN203896086 U CN 203896086U CN 201420164253 U CN201420164253 U CN 201420164253U CN 203896086 U CN203896086 U CN 203896086U
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Abstract
The utility model relates to a multipolar permanent magnet electromotor for shallow water and a shallow water type submersible pump employing the same. The multipolar permanent magnet electromotor for shallow water comprises an electromotor outer shell, a stator, a rotor, and a rotor shaft, wherein the stator and the rotor are arranged in a cavity of the electromotor outer shell, the rotor shaft is fixed with the rotor and extends beyond the electromotor outer shell, a sealed oil chamber is arranged in the cavity of the electromotor outer shell in an integrated manner, and the rotor shaft runs through the oil chamber; the multipolar permanent magnet electromotor is characterized in that the stator and the rotor are distributed along the radial direction of the oil chamber. The multipolar permanent magnet electromotor for shallow water provided by the utility model is compact in structural layout and small in size, the rotor can be effectively cooled through an end face of the electromotor outer shell, the minimum work water surface height can be greatly reduced after the multipolar permanent magnet electromotor is assembled on the submersible pump, and the multipolar permanent magnet electromotor can well adapt to shallow water work occasions. The utility model also provides the shallow water type submersible pump employing the multipolar permanent magnet electromotor for shallow water.
Description
Technical field
the utility model relates to a kind of shallow water with multipole magneto and uses its shallow water type immersible pump.
Background technology
immersible pump be in current productive life under water or the visual plant of deep-well water lift, it is comprised of the pump housing and submersible machine (being mainly squirrel cage motor) two parts of designing in pump housing top conventionally.For the consideration of motor waterproof, submersible machine has the oil pocket of water proof conventionally in one end indoor design being connected with the pump housing, guarantees that stator and rotor can be isolated with water.Yet in conventional structural design, this oil pocket is to be connected in series vertically layout with stator and rotor, and it brings following problem:
1) conventional squirrel cage motor shell is a circular cylindrical shell, and stator is installed in housing inner side, and the heat that stator produces is derived by housing, and fan dispels the heat to hull outside face, thereby realizes cooling to motor.Because of submersible machine when work its stator and rotor need be cooling by current, otherwise easily burn, it is that electric machine casing is immersed in the water that historical facts or anecdotes border adopts the immersible pump of squirrel cage motor while using, and realizes cooling to motor of water.Because this class immersible pump is positioned at the side of motor (rotor) for the case peripheral wall with extraneous heat radiation, so motor need to immerse completely under water and just can be cooled.Again because of the reasons in structure of squirrel cage motor, its airtight oil pocket that enters motor for isolated water is disposed axially between motor and water pump, whole like this immersible pump axial length is just very long, therefore this kind of immersible pump needs the higher water surface could normal work, when waterline cannot be used during lower than electric machine casing.Especially for example, for the more shallow workplace of water level (road ponding), because of cannot submergence motor housing, also just cannot implement effective cooling for motor completely, cause the basic cisco unity malfunction of immersible pump.
2) this class seal architectures design causes submersible machine overall structure compact not, waste material, and volume is larger, and production cost is high.
Summary of the invention
the utility model object is: provide that a kind of topology layout is compacter, volume is less, and its stator and rotor can effectively be implemented the multipole magneto of cooling shallow water by motor housing end face, be assembled on immersible pump and can be greatly reduced minimum work water surface elevation, better adapted to shallow water workplace.
the technical solution of the utility model is: the multipole magneto of a kind of shallow water, comprise motor housing and be located at the stator and rotor in motor housing inner chamber and fix and stretch out the armature spindle of motor housing with rotor, described motor housing is wholely set airtight oil pocket in inner chamber, and described armature spindle is through described oil pocket; It is characterized in that described stator and rotor are with respect to oil pocket radial arrangement.
further, motor housing described in the utility model is fixedly formed by motor fore shell and motor back cover, the antetheca of described motor fore shell is inwardly recessed and by the fixing oil pocket of the described sealing of oil pocket lid formation, described stator and rotor are internal stator external rotor configuration, described stator is directly fixed on oil pocket perisporium, and rotor is positioned at stator periphery; Or described stator and rotor are internal rotor external stator configuration, and described stator is directly fixed on the internal perisporium of motor fore shell, and it is peripheral to be positioned at described oil pocket perisporium, and rotor is positioned at stator inner side.
further, the fore shell of motor described in the utility model is provided with the oil filler point being connected with oil pocket, fixing oiling screw on described oil filler point.
further, armature spindle described in the utility model covers through oil pocket and covers relative oil pocket end wall with oil pocket, and supports and be provided with the mechanical water seal being placed on armature spindle between described oil pocket lid and oil pocket end wall on the other side.
further, the lid of oil pocket described in the utility model outside is fixed with the oil sealing being placed on armature spindle, further to improve the sealing of motor.
further, the back cover of motor described in the utility model with cover on relative oil pocket end wall and be equipped with bearing pedestal with oil pocket, described armature spindle is by bearing and the assembling of corresponding bearing pedestal.
further, described in the utility model, stator comprises stator core, and described stator core periphery is evenly intervally distributed with some unwrapping wire grooves, and unwrapping wire groove is built-in with stator coil; And described rotor comprises the rotor flywheel being fixed on armature spindle, curved on described rotor flywheel have a circle flange, and on described flange, evenly interval is fixed with the rotor magnetic shoe relative with stator.
the utility model provides a kind of shallow water type immersible pump of multipole magneto for above-mentioned shallow water that uses simultaneously, this shallow water type immersible pump using shallow water with a side wall of the motor housing output rotor axle of multipole magneto as pump housing back cover, and on described pump housing back cover fixedly pump housing fore shell form pump housing inner chamber, in described pump housing inner chamber, impeller is set, armature spindle stretches in pump housing inner chamber and with impeller and fixes, pump housing fore shell bottom arranges water inlet, and sidepiece is delivery port.During practical set, pump housing fore shell and described shallow water are fixed with the motor fore shell of multipole magneto, and the not recess on motor fore shell all contacts with pump housing inner chamber with oil pocket lid.Because stator and rotor are with respect to oil pocket radial arrangement, only need meet certain water level make to possess in the pump housing inner chamber current can be well by the contact-making surface (heat radiation end face) of motor fore shell and pump housing fore shell to motor (rotor) enforcement efficiently radiates heat.Therefore compare the immersible pump of conventional employing sidewall heat dissipation type submersible machine (squirrel cage motor), the shallow water type immersible pump that the utility model provides is without motor is submerged in water completely, greatly reduce the required minimum work water surface elevation (height of water level) of immersible pump work, and then improved the adaptability of immersible pump for shallow water workplace.
further, the inlet end of the pump housing fore shell of described shallow water type immersible pump is provided with screen pack.
the utility model has the advantages that:
1. the multipole magneto of this shallow water that the utility model provides, it is because being designed to stator and rotor with respect to oil pocket layout radially, its at reduction motor shaft in structure length, also the distance of stator and rotor and motor housing end face has greatly furthered, like this after the pump housing of motor housing and immersible pump is partly implemented assembling, make stator and rotor can lean on the combination end face of the pump housing and motor to implement cooling (end-face heat sinking), and without submerging completely in water as routine techniques, rely on motor housing perisporium to implement cooling (side heat radiation).The minimum work water surface elevation that this also just greatly reduces immersible pump or similar devices, has improved immersible pump or similar devices greatly for the adaptability of shallow water workplace.
2. the multipole magneto of this shallow water that the utility model provides, it is because being designed to stator and rotor with respect to oil pocket layout radially, the shaft orientation layout that compares conventional underwater operation motor is more conducive to save inner space, greatly shortened axial length, therefore make whole electric machine structure compacter, also miniaturization more.And because using oil pocket perisporium, serve as stator support part, therefore be also beneficial to further and save production cost.
3. the shallow water type immersible pump that the utility model provides, because it has used the multipole magneto of described shallow water, has not only shortened complete machine axial arrangement length greatly, and effectively reduces the required minimum water surface elevation of immersible pump work.The motor framework that originally need implement side heat radiation by motor housing perisporium is changed as be combined the motor framework of end wall enforcement end-face heat sinking with pump housing fore shell by motor housing.Compare the immersible pump of conventional employing sidewall heat dissipation type submersible machine (squirrel cage motor), the shallow water type immersible pump that the utility model provides is without motor is submerged in water completely, greatly reduce the required minimum work water surface elevation (height of water level) of immersible pump work, and then improved the adaptability of immersible pump for shallow water workplace.Compare conventional immersible pump, it not only can tackle deepwater work, can also adapt to shallow water operations, therefore the scope of application is wider.
4. the shallow water type immersible pump that the utility model provides, it is fixed that it has adopted motor, rotor and airtight oil pocket be the structure of layout radially, this structure is by the oil pocket perisporium for fixed stator, motor housing end wall, airtight oil pocket, water pump back cover is mode layout or integrated design recently, so not only can reduce the distance of stator and motor housing end wall, the heat of being convenient to stator minimum distance conducts to motor housing end wall, the oil of its airtight oil pocket also can participate in cooling to stator, this motor housing end wall and oil pocket lid can be used as again the back cover of immersible pump simultaneously, so also greatly simplified diving pump structure, axial length and the volume of water pump have been reduced, saved material, reduced cost, this water pump is as long as water inlet touches the water surface and can normally work, realized the possibility that immersible pump also can normally be worked in extremely low shallow water position.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the utility model is further described:
fig. 1 is the embodiment structural representation of multipole magneto for a kind of shallow water of the utility model;
fig. 2 is for being used the embodiment structural representation of the shallow water type immersible pump of motor shown in Fig. 1;
the working water level of the shallow water type immersible pump that Fig. 3 provides for conventional diving pump and the utility model is schematic diagram relatively.(in figure, left side is conventional shallow water pump D, adopts squirrel cage motor, and oil pocket and motor stator and rotor shaft orientation layout)
wherein: 1, stator; 1a, stator core; 1b, stator coil; 2, rotor; 2a, rotor flywheel; 2b, rotor magnetic shoe; 3, armature spindle; 4, oil pocket; 4a, oil pocket perisporium; 4b, oil pocket end wall; 5, motor fore shell; 6, motor back cover; 7, oil pocket lid; 8, oil filler point; 9, oiling screw; 10, oil sealing; 11, bearing; 12, mechanical water seal; 13, sealing ring; 14, pump housing fore shell; 14a, water inlet; 14b, delivery port; 15, impeller; 16, screen pack; A, heat radiation end face; D, conventional diving pump; E, shallow water type immersible pump; H, the minimum work water surface.
Embodiment
embodiment 1: in conjunction with Figure 1 shows that shallow water that the utility model the provides a kind of embodiment with multipole magneto, the armature spindle 3 that it has motor housing and is located at the stator and rotor 1,2 in motor housing inner chamber and fixes and stretch out motor housing with rotor 2, described motor housing is wholely set airtight oil pocket 4 in inner chamber, described stator and rotor 1,2 are with respect to oil pocket 4 radial arrangement, and described armature spindle 3 is through described oil pocket 4.
specifically as shown in Figure 1, described motor housing in the present embodiment by motor fore shell 5 and motor back cover 6, fixing (fix by bolt, not shown in FIG.) form, the antetheca of described motor fore shell 5 is inwardly recessed and by the fixing oil pocket 4 of the described sealing of oil pocket lid 7 formation, described stator and rotor 1,2 are internal stator external rotor configuration, it is upper that described stator 1 is directly fixed on oil pocket perisporium 4a, and rotor 2 is positioned at stator 1 periphery.Described motor fore shell 5 is provided with the oil filler point 8 being connected with oil pocket 4, fixing oiling screw 9 on described oil filler point 8.
armature spindle described in the present embodiment 3 passes oil pocket lid 7 and covers 7 relative oil pocket end wall 4b with oil pocket, and between described oil pocket lid 7 and oil pocket end wall 4b on the other side, support and be provided with the mechanical water seal 12 being placed on armature spindle 3, while further preventing underwater operation, water flows in motor housing inner chamber along axis hole and armature spindle 3.Described oil pocket covers 7 outsides and is also fixed with the oil sealing 10 being placed on armature spindle 3, further improves waterproof sealing performance.Described motor back cover 6 with cover on 7 relative oil pocket end wall 4b and be equipped with bearing pedestal with oil pocket, described armature spindle 3 is by bearing 11 and corresponding bearing pedestal assembling.
stator described in the present embodiment 1 is comprised of stator core 1a and stator coil 1b with routine techniques is the same, and described stator core 1a is locked upper to oil pocket perisporium 4a, and its periphery is evenly intervally distributed with some unwrapping wire grooves, and unwrapping wire groove is built-in with stator coil 1b; And described rotor 2 is comprised of rotor flywheel 2a and rotor magnetic shoe 2b, rotor flywheel 2a is fixed on armature spindle 3, the upper curved circle flange that has of described rotor flywheel 2a, and the even interval of described flange inner edge is fixed with the rotor magnetic shoe 2b relative with stator 1.
in the present embodiment, between oil pocket lid 7 and motor fore shell 5, be provided with sealing ring 13; And the faying face place of motor fore shell 5 and motor fore shell 6 is also folded with sealing ring 14, to improve the water resistance of motor integral body.
embodiment 2: shown in Fig. 2, be the concrete application example of the shallow water type immersible pump of multipole magneto for the shallow water that provides of a kind of embodiment of employing 1.This shallow water type immersible pump is usingd a side wall of the motor housing output rotor axle 3 of multipole magneto for shallow water (being also motor fore shell 5 and oil pocket lid 7) as pump housing back cover, and on described pump housing back cover fixedly pump housing fore shell 14 form pump housing inner chambers, in described pump housing inner chamber, impeller 15 is set, armature spindle 3 stretches in pump housing inner chamber and with impeller 15 and fixes, pump housing fore shell 14 bottoms arrange water inlet 14a, and sidepiece is delivery port 14b.During practical set, pump housing fore shell 14 is fixing with the motor fore shell 5 of multipole magneto with described shallow water.Because stator and rotor 1,2 are with respect to oil pocket 4 radial arrangement, this layout structure is by oil pocket perisporium 4a, motor fore shell 5, airtight oil pocket 4 and water pump back cover mode layout and the integrated design recently for fixed stator 1, so not only reduced the distance of stator 1 and motor fore shell 5, the heat of being convenient to stator 1 minimum distance conducts on motor fore shell end wall (the heat radiation end face A in Fig. 2); And the oil of its airtight oil pocket 4 also can participate in cooling to stator 1, these motor fore shell 5 end walls and oil pocket lid 7 are again the back covers of immersible pump simultaneously, have so also greatly simplified diving pump structure, have reduced axial length and the volume of water pump, save material, reduced cost.
this immersible pump makes to possess in pump housing fore shell 14 inner chambers well contact-making surface (the heat radiation end face A in Fig. 2) and oil pocket 7 pairs of motors of lid (rotor 1,2) enforcement efficiently radiates heat with pump housing fore shell 14 by motor fore shell 5 of current as long as water inlet 14a touches the water surface, thereby whole immersible pump is normally worked.Therefore compare conventional diving pump D(, adopt sidewall heat dissipation type submersible machine, also be the immersible pump of squirrel cage motor), shown in Fig. 3, the shallow water type immersible pump E that the utility model provides is without motor is submerged in water completely, greatly reduce the required minimum work water surface height H (height of water level) of immersible pump work, and then improved the adaptability of immersible pump for shallow water workplace.
the water inlet 14a end of the fore shell of the pump housing described in the present embodiment 14 is provided with screen pack 16.
certainly above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All modifications of doing according to the Spirit Essence of the utility model main technical schemes, within all should being encompassed in protection range of the present utility model.
Claims (10)
1. the multipole magneto of shallow water, comprise motor housing and be located at stator and rotor (1,2) in motor housing inner chamber and fix and stretch out the armature spindle (3) of motor housing with rotor (2), described motor housing is wholely set airtight oil pocket (4) in inner chamber, and described armature spindle (3) is through described oil pocket (4); It is characterized in that described stator and rotor (1,2) are with respect to oil pocket (4) radial arrangement.
2. the multipole magneto of a kind of shallow water according to claim 1, it is characterized in that described motor housing is fixedly formed by motor fore shell (5) and motor back cover (6), the antetheca of described motor fore shell (5) is inwardly recessed and cover by fixing oil pocket the oil pocket (4) that (7) form described sealing, described stator and rotor (1,2) are internal stator external rotor configuration, it is upper that described stator (1) is directly fixed on oil pocket perisporium (4a), and rotor (2) is positioned at stator (1) periphery; Or described stator and rotor (1,2) are internal rotor external stator configuration, and described stator (1) is directly fixed on the internal perisporium of motor fore shell (5), and be positioned at described oil pocket perisporium (4a) periphery, rotor (2) is positioned at stator (1) inner side.
3. the multipole magneto of a kind of shallow water according to claim 2, is characterized in that described motor fore shell (5) is provided with the oil filler point (8) being connected with oil pocket (4), the upper fixedly oiling screw (9) of described oil filler point (8).
4. the multipole magneto of a kind of shallow water according to claim 2, it is characterized in that described armature spindle (3) is through oil pocket lid (7) and the oil pocket end wall (4b) relative with oil pocket lid (7), and support and be provided with the mechanical water seal (12) being placed on armature spindle (3) between described oil pocket lid (7) and oil pocket end wall on the other side (4b).
5. the multipole magneto of a kind of shallow water according to claim 2, is characterized in that described oil pocket lid (7) outside is fixed with the oil sealing (10) being placed on armature spindle (3).
6. the multipole magneto of a kind of shallow water according to claim 2, it is characterized in that described motor back cover (6) and cover on (7) relative oil pocket end wall (4b) and be equipped with bearing pedestal with oil pocket, described armature spindle (3) assembles with corresponding bearing pedestal by bearing (11).
7. the multipole magneto of a kind of shallow water according to claim 2, it is characterized in that described stator (1) comprises stator core (1a), described stator core (1a) periphery is evenly intervally distributed with some unwrapping wire grooves, and unwrapping wire groove is built-in with stator coil (1b); And described rotor (2) comprises the rotor flywheel (2a) being fixed on armature spindle (3), the upper curved circle flange that has of described rotor flywheel (2a), on described flange, evenly interval is fixed with the rotor magnetic shoe (2b) relative with stator (1).
8. the use shallow water type immersible pump of multipole magneto for shallow water as described in claim 1 ~ 7 any one.
9. shallow water type immersible pump according to claim 8, it is characterized in that this shallow water type immersible pump using shallow water with a side wall of the motor housing output rotor axle (3) of multipole magneto as pump housing back cover, and on described pump housing back cover fixedly pump housing fore shell (14) form pump housing inner chamber, impeller (15) is set in described pump housing inner chamber, armature spindle (3) stretches in pump housing inner chamber and with impeller (15) and fixes, pump housing fore shell (14) bottom arranges water inlet (14a), and sidepiece is delivery port (14b).
10. shallow water type immersible pump according to claim 9, is characterized in that the inlet end of described pump housing fore shell is provided with screen pack (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164253.8U CN203896086U (en) | 2014-04-04 | 2014-04-04 | Multipolar permanent magnet electromotor for shallow water and shallow water type submersible pump employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420164253.8U CN203896086U (en) | 2014-04-04 | 2014-04-04 | Multipolar permanent magnet electromotor for shallow water and shallow water type submersible pump employing same |
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| Publication Number | Publication Date |
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| CN203896086U true CN203896086U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420164253.8U Withdrawn - After Issue CN203896086U (en) | 2014-04-04 | 2014-04-04 | Multipolar permanent magnet electromotor for shallow water and shallow water type submersible pump employing same |
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| CN (1) | CN203896086U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956846A (en) * | 2014-04-04 | 2014-07-30 | 苏州泰格动力机器有限公司 | Shallow water multi-pole permanent magnet motor and shallow water type submerged pump with shallow water multi-pole permanent magnet motor |
| CN109314440A (en) * | 2016-06-17 | 2019-02-05 | 阿特拉斯·科普柯工业技术公司 | Cooling device and method for power tool |
| WO2019101471A1 (en) * | 2017-11-22 | 2019-05-31 | Nidec Gpm Gmbh | Coolant pump having an application-optimised structure and improved heat management |
-
2014
- 2014-04-04 CN CN201420164253.8U patent/CN203896086U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956846A (en) * | 2014-04-04 | 2014-07-30 | 苏州泰格动力机器有限公司 | Shallow water multi-pole permanent magnet motor and shallow water type submerged pump with shallow water multi-pole permanent magnet motor |
| WO2015149659A1 (en) * | 2014-04-04 | 2015-10-08 | 苏州泰格动力机器有限公司 | Multi-pole permanent magnet electric motor for shallow water and shallow water type submersible pump using same |
| CN103956846B (en) * | 2014-04-04 | 2017-05-17 | 苏州泰格动力机器有限公司 | Shallow water multi-pole permanent magnet motor and shallow water type submerged pump with shallow water multi-pole permanent magnet motor |
| CN109314440A (en) * | 2016-06-17 | 2019-02-05 | 阿特拉斯·科普柯工业技术公司 | Cooling device and method for power tool |
| WO2019101471A1 (en) * | 2017-11-22 | 2019-05-31 | Nidec Gpm Gmbh | Coolant pump having an application-optimised structure and improved heat management |
| US11092159B2 (en) | 2017-11-22 | 2021-08-17 | Nidec Gpm Gmbh | Coolant pump having a use-optimised structure and improved thermal efficiency |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141022 Effective date of abandoning: 20170517 |
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| AV01 | Patent right actively abandoned |