CN219304646U - Special motor for permanent magnet synchronous water pump - Google Patents
Special motor for permanent magnet synchronous water pump Download PDFInfo
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- CN219304646U CN219304646U CN202223364023.XU CN202223364023U CN219304646U CN 219304646 U CN219304646 U CN 219304646U CN 202223364023 U CN202223364023 U CN 202223364023U CN 219304646 U CN219304646 U CN 219304646U
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- water pump
- motor
- permanent magnet
- magnet synchronous
- shaft
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Abstract
The utility model discloses a special motor for a permanent magnet synchronous water pump, which comprises a motor body (3), wherein a right end cover (9) and a left end cover (17) are arranged in the motor body (3), the right end cover (9) is connected with a right bearing (8), the left end cover (17) is connected with a left bearing (19), the right bearing (8) and the left bearing (19) are provided with a motor shaft (7), the motor shaft (7) is sleeved with a rotor (11), a stator winding (12) is arranged between the rotor (11) and a stator core (13), the stator core (13) is provided with a permanent magnet group (16), the motor body (3) is connected with a frequency converter (4), and the motor shaft (7) is connected with a water pump main shaft (21) through a coupler (20).
Description
Technical Field
The utility model belongs to the technical field of motors, and relates to a special motor for a permanent magnet synchronous water pump.
Background
The water pump is a machine for conveying or pressurizing liquid, the liquid mainly used for conveying comprises water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal, the water pump transmits mechanical energy or other external energy to the liquid, so that the energy of the liquid is increased, and at present, three main energy-saving technologies are mainly used for energy saving of the water pump: cutting impeller, frequency conversion technology, ternary flow technology.
When the impeller is cut, the diameter of the impeller is necessarily reduced, so that the centrifugal force of liquid in the impeller is definitely reduced, and the consequence is only that parameters such as flow rate and lift of a water pump are reduced, so that hidden danger can be caused to safe production; when the variable frequency technology is adopted, if the actual flow and the lift parameter value of the water pump are reduced by adopting variable frequency speed regulation, the flow reduction value of the water pump can be excessively large, the cooling water quantity of the system is insufficient, and the water temperature of the cooling water system is increased; the three-dimensional space inside the impeller is infinitely divided by the three-dimensional flow technology, a complete and real mathematical model of flow inside the impeller is established through analysis of all working points inside the impeller flow channel, and if the impeller of the common water pump is simply replaced by the three-dimensional flow impeller, the energy-saving effect of the three-dimensional flow technology can not reach the expectations, because the water resistance and the water loss of all the overflow parts inside the whole water pump can not be changed by the single three-dimensional flow impeller under the condition that a pump shell and other parts are shaped.
Disclosure of Invention
The application provides a special motor for a permanent magnet synchronous water pump aiming at the problems in the prior art.
The technical scheme of the utility model is as follows:
the utility model provides a special motor of PMSM, includes motor body, and motor body is inside to be provided with right-hand member lid and left end cover, and right-hand member lid connection right bearing, left-hand member lid connection left bearing, right bearing and left bearing are equipped with the motor shaft, and the motor shaft sleeve is equipped with the rotor, is equipped with stator winding between rotor and the stator core, and stator core is equipped with permanent magnet group, and motor body connects the converter, and the motor shaft passes through the coupling joint water pump main shaft.
As a preferred embodiment of the present utility model: the shaft end of the motor shaft is provided with a cooling fan which is provided with a fan housing.
As a preferred embodiment of the present utility model: the bottom of the motor body is provided with a base radiating fin which is connected with the base.
As a preferred embodiment of the present utility model: the motor shaft is provided with a right positioning ring and a left positioning ring, and the rotor is arranged between the right positioning ring and the left positioning ring.
As a preferred embodiment of the present utility model: a flange ring is arranged between the left end cover and the left bearing.
As a preferred embodiment of the present utility model: the lifting hook is installed at the top of motor body.
The beneficial effects of the utility model are as follows:
according to the special motor for the permanent magnet synchronous water pump, when the frequency converter is started, the starting current is small, and the power grid impact is small; through integration with a water pump system, the efficiency of each working point is high at high and low speeds; the transmission chain is simplified through the integrated control system, and the reliability and maintainability of the system are improved; the permanent magnet group is made of low-loss magnetic steel materials, so that the conversion efficiency of the electric energy of the motor is improved, the effective shaft power of the water pump can be obviously reduced under the condition that the flow is not changed, the full-load operation working condition of an industrial system is completely met, and the energy-saving and high-efficiency effects are realized.
Drawings
Fig. 1 is a schematic structural diagram of a motor special for a permanent magnet synchronous water pump.
In the figure: 1-a base; 2-a base heat sink; 3-a motor body; 4-frequency converter; 5-a fan housing; 6-a heat radiation fan; 7-a motor shaft; 8-right bearing; 9-a right end cover; 10-right positioning ring; 11-rotor; 12-stator windings; 13-stator core; 14-lifting hook; 15-left positioning ring; 16-permanent magnet groups; 17-left end cap; 18-a flange ring; 19-left bearing; a 20-coupling; 21-a water pump main shaft.
Detailed Description
The present utility model will be described in detail below with reference to the drawings and examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, a special motor for a permanent magnet synchronous water pump comprises a motor body 3, wherein a right end cover 9 and a left end cover 17 are arranged inside the motor body 3, the right end cover 9 is connected with a right bearing 8, the left end cover 17 is connected with a left bearing 19, the right bearing 8 and the left bearing 19 are provided with a motor shaft 7, the motor shaft 7 is sleeved with a rotor 11, a stator winding 12 is arranged between the rotor 11 and a stator core 13, the stator core 13 is provided with a permanent magnet group 16, the motor body 3 is connected with a frequency converter 4, and the motor shaft 7 is connected with a water pump main shaft 21 through a coupler 20.
The shaft end of the motor shaft 7 is provided with a cooling fan 6, the cooling fan 6 is provided with a fan housing 5, and the cooling effect is good; the bottom of the motor body 3 is provided with a base radiating fin 2, and the base radiating fin 2 is connected with the base 1, so that the service life is long; the motor shaft 7 is provided with a right positioning ring 10 and a left positioning ring 15, and the rotor 11 is arranged between the right positioning ring 10 and the left positioning ring 15, so that the rotor 11 can be positioned conveniently; a flange ring 18 is arranged between the left end cover 17 and the left bearing 19, so that the bearing stress area is increased, and the stability can be improved; the lifting hook 14 is installed at the top of the motor body 3, so that the lifting is convenient.
In summary, according to the motor special for the permanent magnet synchronous water pump, when the frequency converter is started, the starting current is small, and the power grid impact is small; through integration with a water pump system, the efficiency of each working point is high at high and low speeds; the transmission chain is simplified through the integrated control system, and the reliability and maintainability of the system are improved; the permanent magnet group is made of low-loss magnetic steel materials, so that the conversion efficiency of the electric energy of the motor is improved, the effective shaft power of the water pump can be obviously reduced under the condition that the flow is not changed, the energy is saved, the safety is realized, and the full-load operation working condition of an industrial system is completely met.
Although the embodiments of the present utility model have been disclosed in the foregoing description and drawings, it is not limited to the details of the embodiments and examples, but is to be applied to all the fields of application of the present utility model, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (6)
1. A special motor for a permanent magnet synchronous water pump is characterized in that: including motor body (3), inside right-hand member lid (9) and the left end lid (17) of being provided with of motor body (3), right-hand member lid (9) connect right bearing (8), left-hand member lid (17) connect left bearing (19), right bearing (8) and left bearing (19) are equipped with motor shaft (7), motor shaft (7) cover is equipped with rotor (11), be equipped with stator winding (12) between rotor (11) and stator core (13), stator core (13) are equipped with permanent magnet group (16), motor body (3) connect converter (4), motor shaft (7) are through shaft coupling (20) connection water pump main shaft (21).
2. The permanent magnet synchronous water pump-specific motor according to claim 1, wherein: a cooling fan (6) is arranged at the shaft end of the motor shaft (7), and the cooling fan (6) is provided with a fan housing (5).
3. The permanent magnet synchronous water pump-specific motor according to claim 1, wherein: the bottom of motor body (3) is equipped with base fin (2), base fin (2) connect base (1).
4. The permanent magnet synchronous water pump-specific motor according to claim 1, wherein: the motor shaft (7) is provided with a right positioning ring (10) and a left positioning ring (15), and the rotor (11) is arranged between the right positioning ring (10) and the left positioning ring (15).
5. The permanent magnet synchronous water pump-specific motor according to claim 1, wherein: a flange ring (18) is arranged between the left end cover (17) and the left bearing (19).
6. The permanent magnet synchronous water pump-specific motor according to any one of claims 1 to 5, wherein: the top of the motor body (3) is provided with a lifting hook (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223364023.XU CN219304646U (en) | 2022-12-15 | 2022-12-15 | Special motor for permanent magnet synchronous water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223364023.XU CN219304646U (en) | 2022-12-15 | 2022-12-15 | Special motor for permanent magnet synchronous water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219304646U true CN219304646U (en) | 2023-07-04 |
Family
ID=86982131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223364023.XU Active CN219304646U (en) | 2022-12-15 | 2022-12-15 | Special motor for permanent magnet synchronous water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219304646U (en) |
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2022
- 2022-12-15 CN CN202223364023.XU patent/CN219304646U/en active Active
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