CN1231681C - Capacitor-start induction electric pump - Google Patents
Capacitor-start induction electric pump Download PDFInfo
- Publication number
- CN1231681C CN1231681C CNB021443319A CN02144331A CN1231681C CN 1231681 C CN1231681 C CN 1231681C CN B021443319 A CNB021443319 A CN B021443319A CN 02144331 A CN02144331 A CN 02144331A CN 1231681 C CN1231681 C CN 1231681C
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- China
- Prior art keywords
- rotor
- aforementioned
- stator
- water
- fluid
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- 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.)
- Expired - Fee Related
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a capacitor-start induction electric pump used in water which maintains the waterproof status by processing a stator with epoxy resin die. A sealing structure is disposed between the stator and the rotor to separate and cover them. A protection cover is disposed on the rotor surface for sealing the rotor from outside. Therefore, even the water flows into the electric unit, the water can be prevented to filter into the stator and the rotor and avoid the short circuit fault. Further, passages for flowing outer liquid are respectively disposed between a bearing seat in front of the rotor and a clamp plate, and on the rotate shaft of the rotor and on the protection cover, water is guided to flow by these passages. The heat generated by the electric unit is cooled and discharged by the flowing liquid. The electric efficiency can be improved and the life can be prolonged by preventing excessive heat. In addition, the fault reason and the main reason for reducing electric efficiency can be cutoff by filtering the flowing liquid foreign bodies by filter net.
Description
Invention field
The present invention relates to a kind of capacitor start type induction electric pump structure that mainly in water, uses.Specifically, the capacitor start type induction electric pump that the present invention relates to, handle by stator being carried out the epoxy resin pressing mold, to keep waterproof state, and between rotor and stator, be provided with the sealing configuration that both are isolated and cover, be provided with from the protective housing of outside seal rotor at rotor surface simultaneously, so, even when moisture flows into the electrodynamic element side, can interdict the infiltration of moisture to stator and internal rotor, prevent faults such as short circuit, and then, by between the bearing support of being located at rotor the place ahead and clamping plate and on the rotatingshaft of rotor and the protective housing passage that external fluid can be flowed being set respectively,, utilize the streaming flow cooling and emit the heat that electrodynamic element produces by flowing of this passage positive guide moisture, by preventing overheatedly can to improve electronic efficient and life-saving, in addition, filter the fluid foreign matter flowed by filter screen, can the disengagement failure reason and reduce the main cause of electronic efficient.
Background technique
Generally, pump is to utilize fluids the pressure effect to carry by pipeline or the fluid in the low pressure vessel is sent to device in the high-pressure bottle by pipeline, in recent years, this pump is applied in the occasion that rural area, mine, civil construction scene, workshop, family etc. utilize fluid more.
Pump is not only applicable to water, also is widely used in the conveying of special fluids such as oil and various medicine or paper pulp, viscose glue, mud.Pump is according to lift, flow and use the kind of liquid to have various, according to structure reciprocating pump, rotary pump, centrifugal pump, axial-flow pump, Wesco pump etc. are arranged, according to purposes feed water pump, deep-well pump (deep well pump) etc. are arranged, in addition, the vacuum pump that also has air in the sucking-off container and other gases to make vacuum.
In the above-mentioned multiple pump, what be widely known by the people is, accepts electric pressure, utilizes electromagnetic force to produce machinery output, and utilizes this output to make wheel rotation to transfer the capacitor start type induction electric pump of fluid.
The formation of this capacitor start type induction electric pump comprises: the pump unit is made of impeller housing that forms inflow entrance and exhaust port and the impeller that is arranged at this enclosure interior; And electrodynamic element, by the stator that is arranged on motor case inside be arranged on stator former inside freely to rotate, have the formations such as rotor of the rotatingshaft that combines with impeller; The rotatingshaft that is exposed to the motor case outside is provided with sealing component, is penetrated into casing inside to prevent the water branch.
On the other hand, there be electrical loss and the mechanical loss that produces in the power converter process in induction motor.
Bring very big influence for the life-span and the characteristic of induction motor because of the heat that above-mentioned all losses produce, must cool off induction motor with suitable cooling system.
Promptly, the cooling of induction motor can be by realizing to the transmission of heat of atmosphere and the convection heat conduction by ventilated port from thermal source, this will be subjected to the influence of various factors such as material, film-cooled heat, aeration structure, vent flow and pressure of each constituting component, particularly, maximization along with the induction motor specification, the problem points that produces because of the temperature rising is outstanding, so will pay attention to the effective design and the formation thereof of cooling system.
But, the pump in above-mentioned past because of stator and rotor are that non-waterproof state constitutes, nor possesses the sealing configuration of both being isolated collection, so when in water, using, for preventing that moisture from permeating to electrodynamic element, from casing structure, electrodynamic element is sealed fully, like this, during pump work, the heat that electrodynamic element produces only by the motor case surface conductive, so the cooling heat dissipation effect is insufficient, superheating phenomenon frequently occurs.Therefore, can cause that fault frequently takes place, the problem of electronic efficient and the lost of life.
In addition, when wearing and tearing appear in the air locking of being located at the contact position of rotatingshaft and casing, sealing state is disengaged, moisture penetration causes short circuit to the stator and the rotor of motor-drive pump, it is the immediate cause that causes fault and shorten the life-span, perhaps can cause the insulating oil that is filled between stator and rotor to expose, cause water pollution.
In the past, stator and rotor core are to expose setting, do not cover other guard shields, so exist the precision in both gaps to keep difficulty, electronic efficient reduces, the heat violent problem of leading to a phenomenon.
In addition,, its scope is limited, thereby lift and capacity are diminished, so the problem that small capacity uses that is defined in is structurally arranged for keeping sealing function.
Summary of the invention
Be all problem points that to solve above-mentioned motor-drive pump with the past be cause, the object of the present invention is to provide a kind of capacitor start type induction electric pump, when even moisture flows into the electrodynamic element side, can interdict the infiltration of moisture to stator and internal rotor, prevent faults such as short circuit, and then, by flowing of positive guide moisture, utilize the incoming fluid cooling and emit the heat that electrodynamic element produces, can be by preventing electronic efficient of overheated raising and life-saving, and, by filtering the foreign matter of institute's incoming fluid, can the disengagement failure reason and reduce the main cause of electronic efficient.
For achieving the above object, the present invention carries out the epoxy resin pressing mold to stator and handles, to keep waterproof state.
In addition, the invention provides the sealing configuration of a plurality of or monolithic entity, be positioned between rotor and stator, both are isolated and cover.
In addition, the invention provides a kind of sheet-type metal covering,, prevent that moisture from permeating to rotor with the canned rotor surface.
In addition, the invention provides a kind of passage, be positioned between the bearing support that is arranged on rotor the place ahead and clamping plate and on the rotatingshaft and protective housing of rotor, external fluid can be flowed respectively.
In addition, the invention provides a kind of filter screen, be arranged between bearing support and clamping plate, to filter the foreign matter that contains in the moisture that flows into electrodynamic element.
In addition, the invention provides a kind of eddy current and produce groove, be formed at the rearward end of rotatingshaft, make mobile fluid produce eddy current, auxiliary its done circulation and moved.
Description of drawings
What Fig. 1 represented is the whole sectional view that constitutes of the present invention.
Fig. 2 is job description of the present invention with main position enlarged view.
What Fig. 3 represented is the separation stereogram that is applicable to the obturator of rotor of the present invention.
What Fig. 4 represented is the separation stereogram that is applicable to the filtration of bearing support of the present invention.
What Fig. 5 represented is the main position stereogram that constitutes the eddy current generation groove of axis of rotor rotation of the present invention.
What Fig. 6 represented is the main position sectional view that is formed at the cooling usefulness fluid through-hole on the protective housing of the present invention.
Embodiment
Below, with reference to accompanying drawing formation of the present invention is elaborated.
Fig. 1 represents is the whole sectional view that constitutes of the present invention, and Fig. 2 is job description of the present invention with main position enlarged view.
With reference to Fig. 1, capacitor start type induction electric pump structure of the present invention has: impeller housing 11 forms mutually orthogonal fluid inflow entrance 12 and exhaust port 13; Pump unit 10 is made of the impeller 14 that is arranged at these impeller housing 11 inside; Electrodynamic element 20 is made of motor case 24 grades that combine with aforementioned impeller housing 11, and this motor case inside is provided with stator 21, and has the rotor 22 of the rotatingshaft 23 that is set together with aforementioned impeller 14; Protective housing 30 bonds together with motor case 24 with being air-tight state; Bearing support 40 supports the bearing B1 that combines with such rotation axle 23; Clamping plate 41 combine with aforementioned axis bearing 40, and this capacitor start type induction electric pump structure comprises:
Pressing mold unit 50 carries out the epoxy resin pressing mold to stator former 21 and handles, to keep waterproof state;
Shape metallic leak-proof structure 60, between stator former 21 and rotor 22 and pressing mold unit 50 be combined as a whole, make stator 21 and rotor 22 be air-tight state mutually and keep apart;
Sheet-type metal covering 70 is arranged at the whole surface of aforementioned rotor 22, from the inside of outside seal rotor 22;
Filter screen 80 is set at the front of aforementioned axis bearing 40 by the dunnage 81 with a plurality of fluid through-holes 82, to filter the fluid foreign matter that flows into electrodynamic element 20 in advance;
A plurality of cooling hole 110, breakthrough form is formed in the back of protective housing 30, cools off and emit the heat of electrodynamic element 20 generations, so that outside water or air can be in the inside and outside of aforementioned protective housing 30 circulation;
Eddy current produces groove 120, is arranged with the rearward end at such rotation axle 23, makes the fluid that flows by cooling channel 100 produce eddy current, so that the circulation locomotive function to be provided.
Among Fig. 1, reference marks P represents seal ring, and TP represents the overheated device that prevents, C represents electric capacity.
Below, describe the effect of the present invention of above-mentioned formation in detail.
Fig. 2 is job description of the present invention with main position enlarged view.
Connection is arranged at the power switch (not shown) on the pump of the present invention, and is identical with filtration in the past, electrodynamic element 20 work, rotor 22 rotates, the impeller 14 that combines with rotatingshaft 23 is rotated, suck water, the water that is sucked is discharged and transferred by exhaust port 13 by stream A mouth 12.
In the above-mentioned extraction process, flow into the part of the water of impeller housing 11 inside by the action of impeller 14, flow into by the fluid through-hole 82 on the dunnage 81 that is located at bearing support 40 fronts, foreign matter is filtered by filter screen 80 limits in the limit, water after being filtered is discharged from the through hole 40 ' of bearing support 40, flows in electrodynamic element 20 by the fluid moving walkway 90 of being located at 41 on clamping plate.
Therefore, the foreign body retention that can fundamentally prevent to contain in the water of non-filtration state causes rotational resistance and fault in surface and other positions of rotor 22.
Even water flows into aforementioned electric moving cell 20, moisture can not be penetrated into rotor 22 inside that sealed fully by metal skirt 70, so can not produce fault because of moisture, and, by surrounding sealing configuration 60 stators 21, make moisture can not flow into stator 21 sides, therefore with pressing mold unit 50, stator 21 can not be subjected to the harmful effect of moisture, can guarantee the Security of electrodynamic element 20.
Flow into the water of aforementioned electric moving cell 20, shown in Fig. 2 arrow, metal skirt 70 by being located at aforementioned rotor 22 and the regulation external series gap between the intermediate seal body 62 flow in the rear seal 63 at rotor 22 rears, play the effect of the working heat of cooled rotor 22.
In addition, the water that is sucked is formed in the cooling channel 100 of longitudinal direction of the central interior of rotatingshaft 23 by breakthrough form, continue to flow to the bearing B2 in the rear seal 63, utilize rotor 22 coolings to transfer to the heat of rotatingshaft 23, play the effect of auxiliary refrigerating function.
Water in the bearing B2 in the rear seal 63 of rotor 22, edge joint touches the eddy current that is formed at rotatingshaft 23 rearward end and produces groove 120 limits generation vortex phenomenon, utilize this phenomenon that the cooling channel 100 interior fluids of rotatingshaft 23 are ceaselessly flowed, so can improve cooling performance.
By being located at the cooling hole 110 of protective housing 30 back, can make outside water flow into protective housing 30 inside, so can cool off the heat of transferring to pressing mold unit 50, reach more perfect cooling effect, not in water, when using on the ground, can pass air into and circulate, so can expect the air cooling effect.
In addition, cylindric intermediate seal body 62 makes the precision in mutual gap keep facilitation between stator 21 of the present invention and rotor 27, even produce trickle flowing during rotor 22 work, can not influence stator 21 yet, so, can not reduce electronic efficient, produce overheated or fault.
Aforementioned sealing configuration 60 is to represent with 3 parts in drawing, also can be integral constitutional formula, and seeing from function, effect, manufacture process aspect can be effectively suitable.
Be applicable to that rotatingshaft 23 of the present invention does not limit certain material, preferably by heat resistance, excelling in abrasion resistance, the stupalith that does not produce axis deformation substantially constitutes.
The invention effect
As mentioned above, the present invention carries out the epoxy resin pressing mold to stator and processes to keep anti-watery Attitude, and between rotor and stator, be designed with the hermetically-sealed construction that both are isolated and cover, simultaneously Be provided with the protective cover of canned rotor at rotor surface, so, even moisture flows into the electrodynamic element side The time, also can interdict moisture to the infiltration of stator and internal rotor, prevent the faults such as short circuit.
In addition, by the inflow of positive guide moisture to electrodynamic element, utilize the streaming flow cooling And emit the heat that electrodynamic element produces, can be by preventing the electronic efficient of overheated raising and prolonging the longevity Life.
And then, filter the fluid foreign matter flowed by screen pack, have can disengagement failure former Because of and reduce the effect of the main cause of electronic efficient.
Claims (4)
1. capacitor start type induction electric pump, comprising: impeller housing (11) forms mutually orthogonal fluid inflow entrance (12) and exhaust port (13); Pump unit (10) constitutes by being arranged at the inner impeller (14) of this impeller housing (11); Electrodynamic element (20), by motor case formations such as (24), this motor case inside is provided with stator 21, and has the rotor (22) of the rotatingshaft (23) that is set together with aforementioned impeller (14); Protective housing (30) bonds together with motor case (24) with being air-tight state; Bearing support (40) supports the bearing B1 that combines with such rotation axle (23); Clamping plate (41) combine with aforementioned axis bearing (40); It is characterized in that, also comprise:
Pressing mold unit (50) carries out the epoxy resin pressing mold to stator former (21) and handles, to keep waterproof state;
Shape metallic leak-proof structure (60) is positioned between stator former (21) and the rotor (22) and pressing mold unit (50) are combined as a whole, and makes stator (21) and rotor (22) be air-tight state mutually and keeps apart;
Sheet-type metal covering (70) is arranged at the whole surface of aforementioned rotor (22), from the inside of outside seal rotor (22);
Filter screen (80) is set at the front of aforementioned axis bearing (40) by the dunnage (81) with a plurality of fluid through-holes (82), to filter the fluid foreign matter that flows into electrodynamic element (20) in advance;
Fluid moving walkway (90), insulating space forms in accordance with regulations between bearing support (40) and clamping plate (41), so that being directed to electrodynamic element (20) by the water after through hole (the 40 ') filtration of aforementioned filter screen (80) and aforementioned axis bearing (40);
Cooling channel (100), breakthrough form are formed in the inner longitudinal direction of such rotation axle (23);
A plurality of cooling hole (110), breakthrough form is formed in the back of protective housing (30), and cooling also discharges the heat that electrodynamic element (20) produces, so that outside water or air can be in the inside and outside circulation of aforementioned protective housing (30);
Eddy current produces groove (120), is arranged with the rearward end in such rotation axle (23), makes the fluid that flows by cooling channel (100) produce eddy current, so that the circulation locomotive function to be provided.
2. capacitor start type induction electric pump according to claim 1 is characterized in that aforementioned sealing configuration (60) comprising:
The place ahead seal (61), be positioned between stator former (21) and the rotor (22), be combined as a whole with pressing mold unit (50), make stator (21) and rotor (22) be air-tight state mutually and keep apart, have the chucking axle collar (61 ') that supports the O RunddichtringO in the top;
Cylindric intermediate seal body (62) and aforementioned the place ahead seal (61) are combined as a whole;
Rear seal (63) and aforementioned intermediate seal body (62) are combined as a whole, and collection spring bearing B2.
3. capacitor start type induction electric pump according to claim 1 and 2 is characterized in that aforementioned sealing configuration (60) is a single piece.
4. capacitor start type induction electric pump according to claim 1 is characterized in that, the metal covering (70) of aforementioned rotor (22) is used to keep the predetermined distance between aforementioned sealing configuration (60) and the intermediate seal body (62).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR31414/2001 | 2001-10-10 | ||
| KR2020010031414U KR200260504Y1 (en) | 2001-10-10 | 2001-10-10 | The motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1412444A CN1412444A (en) | 2003-04-23 |
| CN1231681C true CN1231681C (en) | 2005-12-14 |
Family
ID=19710416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021443319A Expired - Fee Related CN1231681C (en) | 2001-10-10 | 2002-10-09 | Capacitor-start induction electric pump |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200260504Y1 (en) |
| CN (1) | CN1231681C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062106A (en) * | 2010-12-31 | 2011-05-18 | 东莞市众隆电机电器制造有限公司 | Perfusion type brushless electric water pump and assembling method thereof |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983768B (en) * | 2005-12-16 | 2011-02-09 | 台达电子工业股份有限公司 | Stator structure and its production |
| KR101324226B1 (en) * | 2008-09-22 | 2013-11-20 | 삼성테크윈 주식회사 | Fluid charger |
| KR101408341B1 (en) * | 2009-04-01 | 2014-06-18 | 삼성테크윈 주식회사 | Permanent Magnetic Motor and Fluid Charger Comprising the Same |
| CN102808779A (en) * | 2011-06-03 | 2012-12-05 | 开利泵业(集团)有限公司 | Low-noise water-cooled centrifugal pump |
| CN102751819A (en) * | 2012-06-18 | 2012-10-24 | 宁波三和壳体模具有限公司 | Novel water cooling structure of water pump motor |
| BE1020820A3 (en) | 2012-07-05 | 2014-05-06 | Atlas Copco Airpower Nv | AERATION DEVICE, ITS USE, AND WATER TREATMENT PLANT WITH SUCH AERATION DEVICE. |
| KR101470148B1 (en) * | 2013-04-29 | 2014-12-08 | 현대자동차주식회사 | Motor cooling apparatus for air compressor |
| CN110529387A (en) * | 2018-05-23 | 2019-12-03 | 三花亚威科电器设备（芜湖）有限公司 | Pump and washing facility |
-
2001
- 2001-10-10 KR KR2020010031414U patent/KR200260504Y1/en not_active IP Right Cessation
-
2002
- 2002-10-09 CN CNB021443319A patent/CN1231681C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062106A (en) * | 2010-12-31 | 2011-05-18 | 东莞市众隆电机电器制造有限公司 | Perfusion type brushless electric water pump and assembling method thereof |
| CN102062106B (en) * | 2010-12-31 | 2014-11-05 | 东莞市众隆电机电器制造有限公司 | Assembling method of perfusion type brushless electric water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200260504Y1 (en) | 2002-01-10 |
| CN1412444A (en) | 2003-04-23 |
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