CN104410182B - Electric pump - Google Patents

Electric pump Download PDF

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Publication number
CN104410182B
CN104410182B CN201410538096.7A CN201410538096A CN104410182B CN 104410182 B CN104410182 B CN 104410182B CN 201410538096 A CN201410538096 A CN 201410538096A CN 104410182 B CN104410182 B CN 104410182B
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CN
China
Prior art keywords
motor
bearing bracket
drive end
end bearing
electric 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.)
Active
Application number
CN201410538096.7A
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Chinese (zh)
Other versions
CN104410182A (en
Inventor
施秋铃
郭健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
Original Assignee
SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
Priority date (The priority date 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 date listed.)
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Application filed by SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd filed Critical SANHE ELECTRICAL APPLIANCE (FUJIAN) CO Ltd
Priority to CN201410538096.7A priority Critical patent/CN104410182B/en
Publication of CN104410182A publication Critical patent/CN104410182A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0693Details or arrangements of the wiring
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K9/00Arrangements for cooling or ventilating
    • H02K9/19Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

The invention discloses an electric pump, which comprises a pump body and a motor, wherein the motor comprises a rotating shaft, an inner cavity of the motor and a motor unit contained in the inner cavity of the motor; the motor unit comprises an inner stator and an outer rotor, the outer rotor comprises magnetic steel and a support, the support is a cylinder provided with a center hole, and the center hole of the cylinder upwards protrudes to form a convex ring; the cylinder covers the inner stator, the magnetic steel is arranged between the inner ring wall of the cylinder and the outer sidewall of the inner stator, and the magnetic steel is fixedly connected to the inner ring wall of the cylinder; the convex ring tightly covers the rotating shaft. The electric pump adopts the outer rotor structure and the inner stator structure and has the advantages of small volume, light weight, high efficiency, energy saving and capabilities of greatly reducing the material cost and the volume of the electric pump.

Description

A kind of electric pump
Technical field
Present invention relates particularly to a kind of electric pump.
Background technology
Traditional electric pump is as shown in figure 1, including pump housing 1' and motor 2', motor 2' parts include drive end bearing bracket 24', rear end cap 25', rotating shaft 21', external stator 231' and internal rotor 232';Motor 2' parts are external stator 231 and internal rotor 232' structures Asynchronous machine.
And the external stator and inner rotor core of existing magneto, magnetize mode and the magnetic force that is formed of its magnet steel Line as shown in Fig. 2 the magnetic line of force by rotor rim formed loop, in order to ensure the performance of motor, it is necessary to good using magnetic conduction Material carrys out processing rotor yoke, so rotor rim has certain thickness, materials are more.
Existing electric pump is to install rotating blading and blown to support in motor 2' anti-drive ends to radiate, the electricity of this structure Pump motor 2' partial volumes are big, weight weight;And traditional electric pump support 11' and motor 2' drive end bearing brackets is two independent portions Part, electric pump machine volume is extremely huge.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of electric pump, lightweight with small volume, energy-efficient excellent Point, is saved greatly the volume of material cost and electric pump.
The present invention is to solve above-mentioned technical problem by the following technical programs:A kind of electric pump, including the pump housing and motor, institute Stating motor includes rotating shaft, motor cavity and the electric motor units being contained in the motor cavity;The electric motor units include inner stator And outer rotor, the outer rotor include magnet steel and support, the support be one have centre bore cylinder, and the cylinder center Project upwards to form a flange collar at hole;The cylindrical sleeve on the inner stator, the magnet steel located at cylinder internal ring wall with it is default Between the lateral wall of son, and the magnet steel is fixedly connected with the internal ring wall of cylinder;The flange collar is closely sheathed in rotating shaft.
Further, the support is low magnetic conductive material.
Further, the support is stainless sheet steel or aluminium alloy sheet.
Further, the inner stator is magnetic conductive material high.
Further, the motor also includes drive end bearing bracket and rear end cap, and the motor cavity is enclosed by drive end bearing bracket and rear end cap Into, and the rear end cap and front end cover lock pay and be connected;The middle part of the drive end bearing bracket is swelled to the motor cavity direction, forms one convex Ring;The inner stator is closely sheathed on the bulge loop.
Further, the pump housing includes front pump cover and impeller, and the front pump cover encloses a cavity with the drive end bearing bracket, and The impeller is contained in the front portion of the cavity;The rotating shaft sequentially passes through the support, drive end bearing bracket and impeller, and the rear end cap is consolidated Due in rotating shaft, and the rotating shaft can be rotated relative to rear end cap;
The drive end bearing bracket is provided with a closed chamber adjacent to the end of the cavity, and a sealing ring is arranged with the closed chamber; The sealing ring is sheathed in rotating shaft, and seals the cavity.
Further, correspond on the drive end bearing bracket at the cavity and be provided with a cooling ditch.
Further, a bearing chamber, a drip chamber and a gutter are additionally provided with the drive end bearing bracket;The bearing chamber is located at The one end corresponding to the motor cavity of drive end bearing bracket;The drip chamber is located between the closed chamber and bearing chamber, and institute To state correspond in rotating shaft and be arranged with a rubber thrower at the drip chamber;The top in the gutter connects with drip chamber, lower end Portion is located on the lateral wall of drive end bearing bracket.
The beneficial effects of the present invention are:
1st, lightweight with small volume using the default minor structure of outer rotor, energy-efficient advantage is saved greatly material The volume of material cost and electric pump;
2nd, traditional electric pump support and drive end bearing bracket are two independent parts, and the present invention becomes one both, makes whole Body product diminishes, and changes the wind-cooling heat dissipating of conventional motors, is changed to water-cooling, and radiating effect is greatly enhanced.
Brief description of the drawings
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the sectional elevation (broken section) of existing electric pump.
Fig. 2 be traditional magnet steel magnetize mode and the magnetic line of force distribution.
Fig. 3 is a kind of sectional elevation of electric pump of the invention.
Fig. 4 is the sectional elevation of drive end bearing bracket in the present invention.
Fig. 5 is that magnet steel in the present invention magnetizes mode and magnetic line of force distribution.
Specific embodiment
Refer to Fig. 3, a kind of electric pump 100, including the pump housing 1 and motor 2;The motor 2 includes rotating shaft 21, motor cavity 22nd, electric motor units 23 in the motor cavity 22, drive end bearing bracket 24 and rear end cap 25 are contained in;The motor cavity 22 is by drive end bearing bracket 24 and rear end cap 25 surround, and the rear end cap 25 and drive end bearing bracket 24 lock are paid and are connected;The middle part of the drive end bearing bracket 24 is to the motor The direction of inner chamber 22 is swelled, and forms a bulge loop 241.
Referring again to Fig. 3, the electric motor units 23 include inner stator 231 and outer rotor 232, and the inner stator 231 is tight It is sheathed on the bulge loop 241.The outer rotor 232 includes magnet steel 2321 and support 2322, and the support 2322 has for one The cylinder 2322a of centre bore, and the central hole of cylinder 2322a projects upwards to form a flange collar 2322b;The cylinder 2322a is sheathed on inner stator 231, the magnet steel 2321 located at internal ring wall and the inner stator 231 of cylinder 2322a lateral wall it Between, and the magnet steel 2321 is fixedly connected with the internal ring wall of cylinder 2322a;The flange collar 2322b is closely sheathed in rotating shaft 21.Institute Support 2322 is stated for low magnetic conductive material, the support 2322 is preferably stainless sheet steel or aluminium alloy sheet.It is described default Son 231 is magnetic conductive material high.
The electric motor units 23 formed the magnetic line of force as shown in figure 5, magnet steel 2321 circumferentially direction is magnetized, because of support 2322 It is stamped to form using low permeability magnetic material, and inner stator 231 is constituted using high permeability material, so by the magnetic line of force of support 2322 Seldom, the magnetic line of force by the magnetic material of inner stator 231 is more, so as to force the air gap and inner stator 231 of magnetic circuit and inside Magnetic material forms loop, so just the yoke of outer rotor 232 can be done into thin, is directly closed using the stainless steel or aluminium of low magnetic conductivity Golden sheet stamping greatlys save materials into support 2322.
Referring again to Fig. 3, the pump housing 1 includes front pump cover 11 and impeller 12, and the front pump cover 11 encloses with the drive end bearing bracket 24 Synthesize a cavity M, and the impeller 12 is contained in the front portion of cavity M;The rotating shaft 21 sequentially passes through the support 2322, preceding End cap 24 and impeller 12, the rear end cap 25 are fixed in rotating shaft 21, and the rotating shaft 21 can be rotated relative to rear end cap 25.
Referring again to Fig. 3 and Fig. 4, the drive end bearing bracket 24 is provided with a closed chamber 241 adjacent to the end of the cavity M, should A sealing ring 3 is arranged with closed chamber 241;The sealing ring 3 is sheathed in rotating shaft 21, and seals the cavity M.The front end Correspond on lid 24 and a cooling ditch 242 is provided with the cavity M, be in fluid 4 and drive end bearing bracket 24 are fixed in cavity M in increase pump The contact area at the position of stator 231, heat when motor 2 works produced by iron core, is taken away by the fluid 4 of pump internal circulation flow, Reach the purpose of cooling.A bearing chamber 243, a drip chamber 244 and a gutter 245 are additionally provided with the drive end bearing bracket 24;It is described Bearing chamber 243 is located at the one end corresponding to the motor cavity 22 of drive end bearing bracket 24;The drip chamber 244 is located at the sealing Correspond between room 241 and bearing chamber 243, and in the rotating shaft 21 at the drip chamber 244 and be arranged with a rubber thrower 5;Institute The top for stating gutter 245 is connected with drip chamber 244, and bottom 245a is located on the lateral wall of drive end bearing bracket 24.Electric pump makes for a long time Worn and torn with sealing ring 3 can be caused, it may occur that slight leakage phenomenon, to prevent leak fluid 4 from entering in motor 2 along rotating shaft 21 Portion, is provided with a drip chamber 244, and a rubber water dumping is mounted with rotating shaft 21 between closed chamber 241 and bearing chamber 243 Circle 5, when failure generation is revealed, fluid 4 is blocked and thrown away by rubber thrower 5, the fluid that will be finally revealed by gutter 245 4 discharge motors 2.
Referring again to Fig. 3, when application present invention work, outer rotor 232 rotates after energization, is driven by rotating shaft 21 described Impeller 12 is rotated, and fluid 4 is sucked from the water inlet 13 of the pump housing 1, accelerates to obtain delivery port 14 of the energy from the pump housing 1 by impeller 12 Throw away, in the process, the fluid 4 of high-speed circulating flowing, cooling are filled with the cavity M that the pump housing 1 and drive end bearing bracket 24 are surrounded The fluid 4 of flowing is also filled with ditch 242, produced heat is transmitted in cavity M by heat transfer when now motor 2 works Fluid 4, then taken out of outside pump by the fluid 4 for circulating, reach cooling purpose.
Present invention use outer rotor 232, the structure of inner stator 231, lightweight with small volume, energy-efficient advantage, significantly Saved the volume of material cost and electric pump.Traditional electric pump support and drive end bearing bracket 24 is two independent parts, the present invention Both are integrated, machine volume is diminished, and change the wind-cooling heat dissipating of conventional motors 2, be changed to water-cooling, radiated Effect is greatly enhanced.

Claims (10)

1. a kind of electric pump, including the pump housing and motor, the motor include rotating shaft, motor cavity and are contained in the motor cavity Electric motor units;The electric motor units include inner stator and outer rotor, and the outer rotor includes magnet steel and support, and the support is one Cylinder with centre bore, and the central hole of the cylinder projects upwards to form a flange collar;The cylindrical sleeve is located on inner stator, The magnet steel is between the internal ring wall and the lateral wall of inner stator of cylinder, and the magnet steel is fixedly connected with the internal ring wall of cylinder; The flange collar is closely sheathed in rotating shaft;
It is characterized in that:
The middle part of the drive end bearing bracket of motor swells to form inner fovea part by the motor cavity direction, its front pump with the pump housing Lid encloses a cavity, for accelerating to obtain water outlet of the energy from the pump housing from the water inlet suction of the pump housing and by impeller in fluid During mouth throws away, the fluid of high-speed circulating flowing is full of the inner fovea part, and heat when making motor work produced by iron core leads to Heat transfer is transmitted to the fluid in the inner fovea part, then takes that pump is outer to be cooled down to motor out of by the fluid for circulating;
Correspond to be provided with the cavity on the drive end bearing bracket of motor and fix connecing for inner stator part with drive end bearing bracket for increasing fluid One cooling ditch of contacting surface product, for accelerating to obtain energy going out from the pump housing from the water inlet suction of the pump housing and by impeller in fluid During the mouth of a river throws away, the fluid of high-speed circulating flowing is full of the cooling ditch, iron when making motor work via the inner fovea part Heat produced by core is transmitted to the fluid in the cooling ditch by heat transfer, then takes pump out of by the fluid for circulating Outward;
The drip chamber between drive end bearing bracket closed chamber and drive end bearing bracket bearing chamber is additionally provided with the drive end bearing bracket.
2. a kind of electric pump as claimed in claim 1, it is characterised in that:The support is low magnetic conductive material.
3. a kind of electric pump as claimed in claim 2, it is characterised in that:The support is stainless sheet steel or aluminum alloy thin Plate.
4. a kind of electric pump as claimed in claim 1, it is characterised in that:The inner stator is magnetic conductive material high.
5. a kind of electric pump as claimed in claim 1, it is characterised in that:The motor cavity by motor drive end bearing bracket and rear end cap Surround, and the rear end cap is paid with front end cover lock and is connected;The middle part of the drive end bearing bracket is swelled to the motor cavity direction, forms one convex Ring;The inner stator is closely sheathed on the bulge loop.
6. a kind of electric pump as claimed in claim 5, it is characterised in that:The impeller is contained in the front portion of the cavity;It is described Rotating shaft sequentially passes through the support, drive end bearing bracket and impeller, and the rear end cap is fixed in rotating shaft, and the rotating shaft can be relative to rear end Lid is rotated.
7. a kind of electric pump as claimed in claim 1, it is characterised in that:The bearing chamber is positioned at drive end bearing bracket corresponding to the electricity The one end of machine inner chamber.
8. a kind of electric pump as claimed in claim 7, it is characterised in that:It is neighbouring described that the closed chamber is arranged on the drive end bearing bracket Correspond on the end of cavity and the rotating shaft at the drip chamber and be arranged with a rubber thrower.
9. a kind of electric pump as claimed in claim 8, it is characterised in that:A gutter, the row are additionally provided with the drive end bearing bracket The top in ditch connects with drip chamber, and lower end part is on the lateral wall of drive end bearing bracket;The top in the gutter connects with drip chamber Logical, lower end part is on the lateral wall of drive end bearing bracket.
10. a kind of electric pump as claimed in claim 8, it is characterised in that:A sealing ring is arranged with the closed chamber;It is described close Seal is sheathed in rotating shaft, and seals the cavity.
CN201410538096.7A 2014-10-13 2014-10-13 Electric pump Active CN104410182B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410538096.7A CN104410182B (en) 2014-10-13 2014-10-13 Electric pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410538096.7A CN104410182B (en) 2014-10-13 2014-10-13 Electric pump

Publications (2)

Publication Number Publication Date
CN104410182A CN104410182A (en) 2015-03-11
CN104410182B true CN104410182B (en) 2017-05-24

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Application Number Title Priority Date Filing Date
CN201410538096.7A Active CN104410182B (en) 2014-10-13 2014-10-13 Electric pump

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106363413B (en) * 2015-07-24 2019-06-28 浙江三花汽车零部件有限公司 The manufacturing method of electronic pump
CN108005915B (en) * 2018-01-15 2023-09-26 宁波拓尔电机有限公司 Electric high-pressure pump
FR3091338B1 (en) * 2018-12-28 2021-04-23 Thales Sa Reverse Stirling Cycle Cooling Device with One Piece Bracket
CN112671124B (en) * 2020-12-26 2023-01-13 山东双华易驱智能制造研究院有限公司 Motor inner stator and motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079112A2 (en) * 1999-08-20 2001-02-28 WILO GmbH Electric motor driven centrifugal pump with outer rotor
CN202231534U (en) * 2011-09-26 2012-05-23 福建省永达盛电机有限公司 Anti-leakage motor for high-efficiency constant-current fire-fighting water pump
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079112A2 (en) * 1999-08-20 2001-02-28 WILO GmbH Electric motor driven centrifugal pump with outer rotor
CN202231534U (en) * 2011-09-26 2012-05-23 福建省永达盛电机有限公司 Anti-leakage motor for high-efficiency constant-current fire-fighting water pump
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

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Inventor after: Shi Qiuling

Inventor after: Guo Jian

Inventor before: Shi Qiuling

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