CN211606222U - Hollow shaft permanent magnet coreless water pump motor - Google Patents
Hollow shaft permanent magnet coreless water pump motor Download PDFInfo
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- CN211606222U CN211606222U CN202020610692.2U CN202020610692U CN211606222U CN 211606222 U CN211606222 U CN 211606222U CN 202020610692 U CN202020610692 U CN 202020610692U CN 211606222 U CN211606222 U CN 211606222U
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- water pump
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Abstract
The utility model discloses a quill shaft permanent magnetism coreless water pump motor, including casing, motor shaft, rotor and stator winding: the shell is a hollow cavity structure, a passage running through the motor shaft in the length direction is arranged in the motor shaft, one end of the passage is connected to an external water pipeline, and the other end of the passage is communicated with a liquid flow passage of the impeller; the rotor is sleeved on the motor shaft and comprises a group of magnetic yokes which are coaxially fixed on the motor shaft at intervals along the axial direction, and permanent magnets are arranged on the magnetic yokes; the stator winding is fixed on the shell and sleeved on the motor shaft, and the group of magnetic yokes are respectively positioned on the left side and the right side of the stator winding. The utility model discloses the motor shaft of permanent magnetism coreless water pump motor is the quill shaft, and water is discharged after flowing through the motor shaft and being pressurized by the impeller from conduit, takes away the partial heat in the motor through the flow that water does not stop in the route of motor shaft to utilize quill shaft inner structure to reduce the heat that the motor produced, reached extension motor life's purpose.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to a quill shaft permanent magnetism coreless water pump motor.
Background
With the development of the technology of the coreless motor, the permanent magnet coreless motor is gradually adopted by the water pump motor used in the industry at present, the permanent magnet coreless water pump motor is provided with a motor shaft, one end of the motor shaft extends out of the motor shell, and the extending end is connected with an impeller through a connecting sleeve. Permanent magnetism coreless water pump motor all can produce the heat at the during operation, though motor casing all has heat dispersion usually, but under normal conditions, the heat that the motor unit interval produced is greater than the heat that motor casing gived off, and traditional permanent magnetism coreless water pump motor generally all carries out the heat dissipation by motor casing's heat dispersion, so traditional permanent magnetism coreless water pump motor is when continuous use, it is fast that temperature rises in its motor when singly leaning on motor casing to dispel the heat, make the time of motor work under high temperature longer, thereby the life of motor has been shortened.
Disclosure of Invention
The utility model discloses a solve traditional permanent magnetism coreless water pump motor and singly lean on motor casing to dispel the heat, temperature rise in the motor is very fast during continuous use, has shortened life's problem, has provided a quill shaft permanent magnetism coreless water pump motor, takes away partial heat through rivers through the motor shaft, has prolonged motor life.
In order to realize the purpose, the technical scheme of the utility model is that:
a hollow shaft permanent magnet coreless water pump motor comprising:
the rotor comprises a shell, a rotor body and a rotor cover, wherein the shell is a hollow cavity structure for placing a rotor, and two ends of the shell are respectively provided with an end cover;
the motor shaft is arranged on the shell, a passage running through the motor shaft in the length direction is arranged in the motor shaft, one end of the passage is connected to an external water pipeline, and the other end of the passage is communicated with the liquid flow passage of the impeller;
the rotor is sleeved on the motor shaft and comprises a group of magnetic yokes which are coaxially fixed on the motor shaft at intervals along the axial direction, and permanent magnets are arranged on the magnetic yokes;
and the stator winding is fixed on the shell and sleeved on the motor shaft, and the magnetic yokes are respectively positioned on the left side and the right side of the stator winding.
Furthermore, the motor shaft comprises an input section, a connecting section and an output section, the input section of the motor shaft is connected to an external water pipeline through a joint, and the output section of the motor shaft synchronously rotates with the impeller through a connecting sleeve; the magnet yoke is fixedly sleeved on the connecting section of the motor shaft through a flat key.
Furthermore, the motor shaft is rotatably arranged at two ends of the shell through bearings, and one side of an inner ring of one of the bearings is provided with a clamp spring.
Furthermore, a key groove and a clamp spring groove are correspondingly arranged on the motor shaft.
Furthermore, a wiring slot is formed in the wall of the housing, and a wiring terminal of the stator winding passes through the wiring slot to be connected to an external power supply.
Further, the end cover is pressed on one side of the outer ring of the bearing and connected to the shell through a bolt.
The utility model has the advantages that:
the utility model discloses well motor shaft is the quill shaft, water flows through the inside route of motor shaft and is discharged after by impeller pressurization from conduit, flow that does not stop in the route of motor shaft through water, can take away the partial heat in the motor, therefore, compare and singly lean on motor casing to dispel the heat, the heat that the motor gived off at the unit interval is just relatively more, under the condition that continuous operation time is the same, the time that the motor worked under the high temperature is shorter, thereby the life of motor has been prolonged, high-speed rotation through the impeller simultaneously, water pressure lift has been increased, and use requirements are met.
Drawings
Fig. 1 is a schematic diagram of a hollow shaft permanent magnet coreless water pump motor according to the present invention.
Fig. 2 is a schematic diagram of a motor shaft in a hollow shaft permanent magnet coreless water pump motor according to the present invention.
The reference numbers in the drawings are as follows: the motor comprises a shell 1, an end cover 2, a motor shaft 3, a water pipeline 4, an impeller 5, a magnet yoke 6, a permanent magnet 7, a stator winding 8, a joint 9, a connecting sleeve 10, a bearing 11, a clamp spring 12, a wiring groove 13, a bolt 14 and a flat key 15.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 2, a hollow shaft permanent magnet coreless water pump motor includes a housing 1, a motor shaft 3, a rotor and a stator winding 8: the shell 1 is a hollow cavity structure for placing a rotor, and two ends of the shell 1 are respectively provided with an end cover 2; the motor shaft 3 is arranged on the shell 1, a passage running through the motor shaft 3 in the length direction is arranged in the motor shaft 3, one end of the passage is connected to an external water pipe 4, and the other end of the passage is communicated with a liquid flow passage of the impeller 5; the rotor is sleeved on the motor shaft 3 and comprises a group of magnetic yokes 6 which are coaxially fixed on the motor shaft 3 at intervals along the axial direction, and permanent magnets 7 are arranged on the magnetic yokes 6; the stator winding 8 is fixed on the shell 1 and sleeved on the motor shaft 3, and the group of magnetic yokes 6 are respectively positioned on the left side and the right side of the stator winding 8.
Specifically, the motor shaft 3 comprises an input section, a connecting section and an output section, the input section of the motor shaft 3 is connected to an external water conveying pipeline 4 through a joint 9, and the output section of the motor shaft 3 synchronously rotates with the impeller 5 through a connecting sleeve 10; the magnet yoke 6 is fixedly sleeved on the connecting section of the motor shaft 3 through a flat key 15.
In the embodiment, the motor shaft 3 is rotatably arranged at two ends of the shell 1 through the bearings 11, one side of the inner ring of one of the bearings 11 is provided with the clamp spring 12, meanwhile, the motor shaft 3 is correspondingly provided with the key groove and the clamp spring groove, the end cover 2 is pressed at one side of the outer ring of the bearing 11 and is connected to the shell 1 through the bolt 14, and the shell 1 can adopt a two-piece structure in consideration of the assembly process requirement; in addition, the wall of the shell 1 is provided with a wiring slot 13, so that the wiring end of the stator winding 8 passes through the wiring slot 13 and is connected to an external power supply conveniently.
It should be noted that the joint 9 and the water pipe 4 can be connected by using the structural principle that a ball head is matched with a ball seat, so that the joint 9 and the water pipe 4 can axially rotate, and water flows into the motor shaft 3 from the water pipe 4 when the motor shaft 3 rotates at a high speed; the structure of the ball head matched with the ball seat is the prior art, and is not described in detail herein.
In actual work, stator winding 8 circular telegram drives the rotor and rotates, and motor shaft 3 directly drives impeller 5 rotary work along with the rotor rotation, in the whole course of the work, the one end of motor shaft 3 links to each other with conduit 4, water flows through the inside route of motor shaft 3 and discharges after being pressurized by impeller 5 from conduit 4, through the incessant flow of water in the route of motor shaft 3, can take away partial heat in the motor, therefore, compare and singly lean on motor casing to dispel the heat, the heat that the motor gived off at unit interval is just more relatively, under the same circumstances of continuous operation time, the time that the motor worked under high temperature is shorter, thereby the life of motor has been prolonged, high-speed rotation through impeller 5 simultaneously, water pressure lift has been increased, the user demand has been satisfied.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the invention, so that equivalent changes and modifications made according to the structure, characteristics and principles of the present invention are all included in the scope of the present invention.
Claims (6)
1. A hollow shaft permanent magnet coreless water pump motor, comprising:
the rotor comprises a shell (1) which is a hollow cavity structure for placing a rotor, wherein two ends of the shell (1) are respectively provided with an end cover (2);
the motor shaft (3) is arranged on the shell (1), a passage running through the motor shaft (3) in the length direction is arranged in the motor shaft, one end of the passage is connected to an external water pipeline (4), and the other end of the passage is communicated with a liquid flow passage of the impeller (5);
the rotor is sleeved on the motor shaft (3) and comprises a group of magnetic yokes (6) which are coaxially fixed on the motor shaft (3) at intervals along the axial direction, and permanent magnets (7) are arranged on the magnetic yokes (6);
and the stator winding (8) is fixed on the shell (1) and sleeved on the motor shaft (3), and the magnetic yokes (6) are respectively positioned on the left side and the right side of the stator winding (8).
2. The hollow shaft permanent magnet coreless water pump motor according to claim 1, wherein the motor shaft (3) includes an input section, a connection section, and an output section, the input section of the motor shaft (3) is connected to an external water pipe (4) through a joint (9), and the output section of the motor shaft (3) rotates synchronously with the impeller (5) through a connection sleeve (10); the magnet yoke (6) is fixedly sleeved on the connecting section of the motor shaft (3) through a flat key (15).
3. A hollow shaft permanent magnet coreless water pump motor according to claim 1, wherein the motor shaft (3) is rotatably disposed at both ends of the housing (1) through bearings (11), and a clamp spring (12) is disposed at one side of an inner ring of one of the bearings (11).
4. The hollow shaft permanent magnet coreless water pump motor according to claim 1, wherein a key groove and a snap spring groove are correspondingly formed on the motor shaft (3).
5. A hollow shaft permanent magnet coreless water pump motor according to claim 1, wherein wiring slots (13) are opened in the wall of the housing (1), and the terminals of the stator winding (8) are connected to an external power source through the wiring slots (13).
6. A hollow shaft permanent magnet coreless water pump motor according to claim 3, wherein the end cap (2) is pressed against the outer ring side of the bearing (11) and is attached to the housing (1) by bolts (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610692.2U CN211606222U (en) | 2020-04-22 | 2020-04-22 | Hollow shaft permanent magnet coreless water pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020610692.2U CN211606222U (en) | 2020-04-22 | 2020-04-22 | Hollow shaft permanent magnet coreless water pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211606222U true CN211606222U (en) | 2020-09-29 |
Family
ID=72584107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020610692.2U Active CN211606222U (en) | 2020-04-22 | 2020-04-22 | Hollow shaft permanent magnet coreless water pump motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211606222U (en) |
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2020
- 2020-04-22 CN CN202020610692.2U patent/CN211606222U/en active Active
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