CN109474110B - Motor for water pump - Google Patents
Motor for water pump Download PDFInfo
- Publication number
- CN109474110B CN109474110B CN201811482940.3A CN201811482940A CN109474110B CN 109474110 B CN109474110 B CN 109474110B CN 201811482940 A CN201811482940 A CN 201811482940A CN 109474110 B CN109474110 B CN 109474110B
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- rotor
- cavity
- water
- bearing seat
- end cover
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the technical field of water pumps, in particular to a motor for a water pump, which comprises a shell, a rotor assembly, a shielding sleeve, an upper bearing seat, a lower bearing seat, an upper end cover and a lower end cover; the rotor assembly comprises a rotor shaft arranged in the shell in a penetrating mode, a rotor sleeved on the rotor shaft and a magnetic steel sleeve; the upper bearing seat is arranged at the upper end of the upper end cover, the lower bearing seat is arranged at the lower end of the lower end cover, a cavity is formed among the casing, the upper end cover and the lower end cover, and the cavity comprises a stator cavity and a rotor cavity; the shielding sleeve is sleeved in the rotor cavity and sleeved outside the rotor assembly; a containing cavity filled with clear water and used for heat dissipation is formed in the shielding sleeve. The invention aims to provide the motor for the water pump, which has the advantages of stable structure, good heat dissipation effect and environmental protection.
Description
Technical Field
The invention belongs to the technical field of water pumps, and particularly relates to a motor for a water pump.
Background
At present, most of the existing common oil-immersed motor motors have excellent sealing performance, but the problem that the heat dissipation performance inside the machine body is very poor is solved, for some hot weather areas, the water pump motors often cause the temperature inside the machine body to be too high due to the heat dissipation inside the machine body, the normal operation of the machine body is seriously affected, the service life of the water pump motors is also very short, and the ecological environment is seriously affected if oil leakage occurs.
Disclosure of Invention
The invention aims to provide the motor for the water pump, which has the advantages of stable structure, good heat dissipation effect and environmental protection.
The purpose of the invention is realized as follows: a motor for a water pump comprises a machine shell, a rotor assembly, a shielding sleeve, an upper bearing seat, a lower bearing seat, an upper end cover and a lower end cover; the rotor assembly comprises a rotor shaft arranged in the shell in a penetrating mode, a rotor sleeved on the rotor shaft and a magnetic steel sleeve; the upper bearing seat is arranged at the upper end of the upper end cover, the lower bearing seat is arranged at the lower end of the lower end cover, a cavity is formed among the casing, the upper end cover and the lower end cover, and the cavity comprises a stator cavity and a rotor cavity; the shielding sleeve is sleeved in the rotor cavity and sleeved outside the rotor assembly; a containing cavity filled with clear water and used for heat dissipation is formed in the shielding sleeve.
Preferably, the rotor shaft is sleeved with a graphite sleeve for protecting the rotor shaft, and the graphite sleeve is arranged in the upper bearing seat.
Preferably, the upper end and the lower end of the rotor are respectively provided with an upper rotor end ring and a lower rotor end ring for compressing the rotor coils.
Preferably, a bearing for protecting the rotor shaft is arranged between the rotor lower end ring and the lower bearing seat.
Preferably, a protective cover with a sealing function is sleeved at the upper end of the rotor shaft, and a first protective sleeve is clamped on the protective cover.
Preferably, a stator is arranged in the stator cavity, heat dissipation pieces are respectively arranged on the upper side and the lower side of the stator, and the heat dissipation pieces are arranged in the sealing cavity.
Preferably, a groove is formed in the lower bearing seat, a water bag baffle is installed in the groove, a water bag pressing plate is arranged on the water bag baffle, and a base is arranged at the lower end of the water bag pressing plate.
Preferably, a cavity is formed in the side wall of the sealing cavity at the lower end of the stator, a plurality of water pipes penetrating through the cavity are arranged on the side wall, one end of each water pipe is located outside the side wall, the other end of each water pipe is located in the sealing cavity, and at least one sand-proof filter layer is arranged in each water pipe.
Preferably, the number of the sand prevention filter layers is two, and the two sand prevention filter layers are respectively arranged at an inlet and an outlet in the water through pipe.
Preferably, the material of the heat sink is epoxy resin.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that: the motor is a shielded motor, the stator adopts a potting structure and is separated by the shielding sleeve, so that the motor has a good heat dissipation effect, clear water is added into the shielding sleeve to serve as a buffer medium, even if the oil sac is broken, the clear water flows into a well, the pollution problem of oil leakage of a conventional motor is isolated, and the heat dissipation piece can help the stator to dissipate heat effectively and timely.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment of the present invention;
FIG. 2 is a cross-sectional view of a second embodiment of the present invention;
fig. 3 is an enlarged view at a in fig. 2.
In the figure: 1-a machine shell; 2-a rotor assembly; 21-a rotor shaft; 22-a rotor; 23-a magnetic steel sleeve;
24-a graphite sleeve; 25-rotor upper end ring; 26-rotor lower end ring; 27-a bearing;
28-a protective cover; 29-a first protective sheath; 3-a shielding sleeve; 31-an accommodating cavity; 4-upper bearing seat;
5-lower bearing seat; 51-a groove; 52-water pocket baffles; 53-water pocket pressing plate; 54-a base;
6-upper end cover; 7-lower end cap; 8, a cavity; 81-stator cavity; 82-a rotor cavity; 83-a stator;
9-a heat sink; 91-sealing the cavity; 92-a cavity; 93-side walls; 94-water pipe;
95-sand control filter layer; 96-tightening the nut; 150-check valve; 160-rotor baffles;
170-a second protective sheath; 180-oil sealing; 190-through holes.
Detailed Description
The invention is further described below in terms of specific examples.
The first embodiment is as follows: as shown in fig. 1, an electric motor for a water pump includes a casing 1, a rotor assembly 2, a shield sleeve 3, an upper bearing housing 4, a lower bearing housing 5, an upper end cap 6 and a lower end cap 7; the rotor assembly 2 comprises a rotor shaft 21 arranged in the casing 1 in a penetrating manner, a rotor 22 sleeved on the rotor shaft 21 and a magnetic steel sleeve 23; the upper bearing seat 4 is arranged at the upper end of the upper end cover 6, the lower bearing seat 5 is arranged at the lower end of the lower end cover 7, a cavity 8 is formed among the machine shell 1, the upper end cover 6 and the lower end cover 7, and the cavity 8 comprises a stator cavity 81 and a rotor cavity 82; the shielding sleeve 3 is sleeved in the rotor cavity 82, and the shielding sleeve 3 is sleeved outside the rotor assembly 2; a containing cavity 31 filled with clear water and used for heat dissipation is formed in the shielding sleeve 3.
The motor of this technical scheme is shielded motor, and the stator adopts the embedment structure, and reuse shielding sleeve 3 separates, has good radiating effect, adds the clear water as the buffer medium in the shielding sleeve 3, even the water pocket breaks, it is the clear water to flow into in the well, has isolated the pollution problem of conventional motor oil leak.
Preferably, a check valve 150 for water inflow is provided above the casing 1, the check valve 150 communicating with the rotor chamber 82; a through hole 190 is formed on the lower bearing seat 5, and the through hole 190 is communicated with the groove 51.
This technical scheme sets up in the check valve 150 can prevent the water refluence return water pump in the casing 1, be provided with through-hole 190 on the step 5 and can guarantee that the hydroenergy in the rotor chamber 82 flows into recess 51 in and contacts each other with water pocket baffle 52 and water pocket clamp plate 53, prevents that water pocket baffle 52 and water pocket clamp plate 53 from melting under high temperature environment.
Preferably, an oil seal 180 with a sealing function is further sleeved on the rotor shaft 21, and the oil seal 180 is arranged in the upper end cover 6.
Preferably, the rotor shaft 21 is sleeved with a graphite sleeve 24 for protecting the rotor shaft 21, and the graphite sleeve 24 is arranged in the upper bearing seat 4.
The graphite sleeve 24 of the present technical solution is provided with a second protective sleeve 170 therein, and the second protective sleeve 170 is used for reducing the friction coefficient between the rotor shaft 21 and the graphite sleeve 24.
Preferably, a rotor baffle 160 for protecting the rotor is disposed below the graphite sleeve 24, and the rotor baffle 160 is sleeved on the rotor shaft 21.
The rotor baffle 160 of the technical scheme can prevent the graphite sleeve 24 from falling off when the motor runs, thereby damaging the rotor 22 and having the functions of protection and limitation.
Preferably, the upper and lower ends of the rotor 22 are respectively provided with a rotor upper end ring 25 and a rotor lower end ring 26 for compressing the rotor coils.
Preferably, a bearing 27 for protecting the rotor shaft 21 is provided between the rotor lower end ring 26 and the lower bearing housing 5.
This technical scheme the bearing includes thrust disc, footstep bearing and clutch blocks, 5 upper ends of step are circular-arcly, 5 upper ends of step are equipped with a thrust disc with its looks adaptation, the shaping has an annular groove on the thrust disc, be provided with a footstep bearing of holding balance and friction reduction in the annular groove, the footstep bearing upper end is provided with a clutch blocks, the clutch blocks links to each other with rotor subassembly 2. And the bearing 27 can reduce the friction generated by the rotor shaft 21 during the rotation process, and can increase the service life of the rotor shaft 21.
Preferably, a protective cover 28 with a sealing function is sleeved on the upper end portion of the rotor shaft 21, and a first protective sleeve 29 is clamped on the protective cover 28.
The protective cover 28 and the first protective cover 29 in the technical scheme can fully protect sand in water from entering the motor through the spindle head when the motor is placed in water, and the service life of the motor can be prolonged.
Preferably, a stator 83 is arranged in the stator cavity 81, heat dissipation members 9 are respectively arranged on the upper side and the lower side of the stator 83, and the heat dissipation members 9 are arranged in the sealed cavity 91.
This technical scheme motor starts, and it is the production of heat that the rotor 22 rotational speed reaches rated speed, because stator 83 is the embedment structure, utilizes the strong characteristics of the heat conductivity of solid radiating piece 9 to give off the heat, reaches radiating effect.
Preferably, a groove 51 is formed in the lower bearing seat 5, a water bag baffle plate 52 is installed in the groove 51, a water bag pressing plate 53 is arranged on the water bag baffle plate 52, and a base 54 is arranged at the lower end of the water bag pressing plate 53.
This technical scheme is provided with the waterproof construction of multilayer, can strengthen the sealing performance of motor greatly, prevents to take place because of leaking the condition that leads to the motor to damage.
Example two: as shown in fig. 2-3, this embodiment is substantially the same as the first embodiment, except that a cavity 92 is formed in a side wall 93 of the sealed chamber 91, a plurality of water pipes 94 penetrating the cavity 92 are arranged on the side wall 93, one end of the water pipe 94 is located outside the side wall 93, the other end of the water pipe 94 is located in the sealed chamber 91, and at least one sand-proof filter layer 95 is arranged in the water pipe 94.
This technical scheme water service pipe 94's setting makes the inside good ventilation performance that has had of motor, the heat that the motor produced in the operation process can be discharged effectively, the unable discharge of the inside heat of motor has been solved, inside high temperature leads to the problem that motor normal operating is influenced by serious, thereby guaranteed the long-time normal operating of motor, the sand prevention filter layer 95 in the water service pipe 94 can prevent inside the dust and sand of aquatic entering into the fuselage in addition, the emergence of the inside condition that influences the motor operation of fuselage has been avoided the dust and sand to enter into.
Preferably, the sand control filter layers 95 are two in number and are provided at the inlet and outlet of the water passage pipe 94, respectively.
This technical scheme is provided with the protection motor that double-deck sand prevention filter layer 95 can be better, increases the life of motor.
Preferably, the material of the heat sink 9 is epoxy resin.
The material of the heat dissipation member 9 in the technical scheme is epoxy resin, and the material has the characteristics of good heat dissipation performance, high temperature resistance, various forms, strong adhesion and the like.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. A motor for a water pump is characterized by comprising a machine shell (1), a rotor assembly (2), a shielding sleeve (3), an upper bearing seat (4), a lower bearing seat (5), an upper end cover (6) and a lower end cover (7); the rotor assembly (2) comprises a rotor shaft (21) penetrating into the casing (1), a rotor (22) sleeved on the rotor shaft (21) and a magnetic steel sleeve (23); the upper bearing seat (4) is arranged at the upper end of the upper end cover (6), the lower bearing seat (5) is arranged at the lower end of the lower end cover (7), a cavity (8) is formed among the machine shell (1), the upper end cover (6) and the lower end cover (7), and the cavity (8) comprises a stator cavity (81) and a rotor cavity (82); the shielding sleeve (3) is sleeved in the rotor cavity (82) and the shielding sleeve (3) is sleeved outside the rotor assembly (2); an accommodating cavity (31) filled with clear water and used for heat dissipation is formed in the shielding sleeve (3);
a stator (83) is arranged in the stator cavity (81), heat dissipation pieces (9) are respectively arranged on the upper side and the lower side of the stator (83), and the heat dissipation pieces (9) are arranged in the sealed cavity (91);
a cavity (92) is formed in the side wall (93) of the sealing cavity (91), a plurality of water through pipes (94) penetrating through the cavity (92) are arranged on the side wall (93), one end of each water through pipe (94) is positioned outside the side wall (93), the other end of each water through pipe is positioned in the sealing cavity (91), and at least one sand-proof filter layer (95) is arranged in each water through pipe (94);
the rotor shaft (21) is also sleeved with an oil seal (180) with a sealing effect, and the oil seal (180) is arranged in the upper end cover (6);
a groove (51) is formed in the lower bearing seat (5), a water bag baffle plate (52) is installed in the groove (51), a water bag pressing plate (53) is arranged on the water bag baffle plate (52), and a base (54) is arranged at the lower end of the water bag pressing plate (53);
a check valve (150) for water inlet is arranged above the machine shell (1), and the check valve (150) is communicated with the rotor cavity (82); a through hole (190) is formed in the lower bearing seat (5), and the through hole (190) is communicated with the groove (51);
the through hole (190) is positioned at the upper end of the water bag baffle (52), and the through hole (190) is obliquely formed on the lower bearing seat (5).
2. An electric motor for a water pump according to claim 1, characterized in that the rotor shaft (21) is sleeved with a graphite sleeve (24) for protecting the rotor shaft (21), the graphite sleeve (24) being arranged in the upper bearing block (4).
3. An electric motor for a water pump according to claim 2, characterized in that the upper and lower ends of the rotor (22) are respectively provided with an upper rotor end ring (25) and a lower rotor end ring (26) for compressing the rotor coils.
4. A motor for a water pump according to claim 3, characterized in that a bearing (27) protecting the rotor shaft (21) is arranged between the rotor lower end ring (26) and the lower bearing housing (5).
5. An electric motor for a water pump according to claim 1, characterized in that the upper end of the rotor shaft (21) is sleeved with a protective cover (28) having a sealing function, and the protective cover (28) is clamped with a first protective sleeve (29).
6. An electric motor for a water pump according to claim 1, characterized in that the number of the sand control filter layers (95) is two and is provided at the inlet and outlet of the water passage pipe (94), respectively.
7. An electric motor for a water pump according to claim 1, characterized in that the material of the heat sink (9) is epoxy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482940.3A CN109474110B (en) | 2018-12-05 | 2018-12-05 | Motor for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811482940.3A CN109474110B (en) | 2018-12-05 | 2018-12-05 | Motor for water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109474110A CN109474110A (en) | 2019-03-15 |
| CN109474110B true CN109474110B (en) | 2020-09-22 |
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ID=65675622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811482940.3A Active CN109474110B (en) | 2018-12-05 | 2018-12-05 | Motor for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109474110B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113014029B (en) * | 2021-03-05 | 2021-09-14 | 浙江浙水工贸有限公司 | Shielding water-cooled permanent magnet pump motor for high-speed well |
| CN114552833A (en) * | 2022-03-25 | 2022-05-27 | 浙江浙水工贸有限公司 | Shielding type synchronous permanent magnet speed regulation high-efficiency jet aeration oxygenation system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761193A (en) * | 2011-04-26 | 2012-10-31 | 上海润驰电气有限公司 | Direct current motor for solar water pump system |
| CN202931081U (en) * | 2012-10-15 | 2013-05-08 | 浙江东音泵业股份有限公司 | Diving generator inner chamber pressure balancing device for well |
| CN202889050U (en) * | 2012-11-02 | 2013-04-17 | 浙江科胜机电有限公司 | Submersible motor |
| CN204967492U (en) * | 2015-09-03 | 2016-01-13 | 台州谊聚机电有限公司 | Immersible pump fills water and electricity machine |
| CN206775278U (en) * | 2017-06-14 | 2017-12-19 | 东阳市东政电机有限公司 | A kind of dual-axle motor of high sealing |
| CN108512343B (en) * | 2018-06-15 | 2023-12-01 | 博远机电（嘉兴）有限公司 | Permanent magnet motor and submersible pump |
-
2018
- 2018-12-05 CN CN201811482940.3A patent/CN109474110B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109474110A (en) | 2019-03-15 |
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