CN110718985A - Permanent magnet motor with built-in heat dissipation waterway - Google Patents
Permanent magnet motor with built-in heat dissipation waterway Download PDFInfo
- Publication number
- CN110718985A CN110718985A CN201911160829.7A CN201911160829A CN110718985A CN 110718985 A CN110718985 A CN 110718985A CN 201911160829 A CN201911160829 A CN 201911160829A CN 110718985 A CN110718985 A CN 110718985A
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- Prior art keywords
- stator
- water
- groove
- radiator
- inner ring
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Classifications
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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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/24—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors with channels or ducts for cooling medium between the conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a permanent magnet motor with a built-in heat dissipation waterway, which comprises a winding stator, wherein the winding stator is provided with a radiator copper pipe in a groove; the left end and the right end of the winding stator are respectively connected with a stator slot radiator left cover ring and a stator slot radiator right cover ring, the stator slot radiator left cover ring and the stator slot radiator right cover ring are respectively provided with a stator slot heat dissipation water passing groove, and the stator slot radiator left cover ring, the stator slot heat dissipation water passing groove, a slot radiator copper pipe and the stator slot radiator right cover ring form a stator slot internal circulation cooling water path. The invention takes away the heat of stator iron loss through the circulating cooling water loop, and takes away the heat of stator copper loss through the circulating cooling water path in the stator slot, thereby greatly improving the cooling effect of the motor, greatly improving the efficiency of the motor, greatly prolonging the duration of the peak torque and the peak power of the motor, obviously improving the overload capacity of the motor, and reducing the volume and the weight of the motor by 50 percent compared with the equivalent power and efficiency.
Description
Technical Field
The invention relates to the field of energy equipment, in particular to a permanent magnet motor with a built-in heat dissipation waterway.
Background
The heat dissipation structure of the existing permanent magnet motor is solved through the heat dissipation ribs arranged on the shell, and the design is large in size, poor in heat dissipation effect and low in power.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a permanent magnet motor with a built-in heat dissipation water path, which is simple in structure and practical.
The invention is realized by the following modes:
the utility model provides a permanent-magnet machine in built-in heat dissipation water route which characterized in that: the motor comprises a motor main shaft, wherein the left side and the right side of the motor main shaft are respectively connected with a front end cover and a cooler rear end cover through a front bearing and a rear bearing; the front end cover and the cooler rear end cover can rotate relative to the motor main shaft; an aluminum alloy shell with heat dissipation ribs is arranged between the front end cover and the rear end cover of the cooler; the motor main shaft is connected with a rotor yoke body; the inner wall of the rotor yoke body is provided with a plurality of motor magnetic steels through a magnetic steel framework; a plurality of stator inner ring waterway channels are arranged in the rear end cover of the cooler; a plurality of water blocking pieces and stator inner ring water channel water passing grooves are arranged on the rear end cover of the cooler, and the water blocking pieces, the stator inner ring water channel water passing grooves and the stator inner ring water channel water channels form a circulating cooling water loop; a stator inner ring waterway water inlet and a stator inner ring waterway water outlet are formed in the rear end cover of the cooler; the stator inner ring waterway water inlet and the stator inner ring waterway water outlet are respectively communicated with the stator inner ring waterway water channel; a winding stator is arranged on the rear end cover of the cooler; the rotor yoke body is used for covering the winding stator inside; a radiator copper pipe in a slot is arranged on the winding stator; a stator groove radiator left cover ring and a stator groove radiator right cover ring are arranged at the left end and the right end of a winding stator respectively, a stator groove heat dissipation water passing groove is formed in each of the stator groove radiator left cover ring and the stator groove radiator right cover ring, a stator groove heat dissipation water passing groove, a groove middle radiator copper pipe and the stator groove radiator right cover ring form a stator groove internal circulation cooling water path, a stator groove cooling water pipe water outlet and a stator groove cooling water pipe water inlet are formed in each stator groove radiator right cover ring, a stator inner ring water path water outlet is communicated with the stator groove cooling water pipe water inlet through an outer water pipe, and therefore a series water path is formed, cooling water enters from the stator inner ring water path water inlet and flows out from the stator groove cooling water pipe water outlet.
The invention has the beneficial effects that: the heat that loses the stator iron is taken away through the recirculated cooling water return circuit, loses the heat with stator copper through stator inslot recirculated cooling water route and takes away, has improved the cooling effect of motor greatly, and the efficiency of motor improves greatly, and the duration of motor peak torque and peak power prolongs greatly, and the overload capacity of motor is showing and is improving, and equal power compares with efficiency, and motor volume and weight reduce 50%.
Drawings
FIG. 1 is a cross-sectional view of the structure of the present invention;
FIG. 2 is a right side view of the inventive structure;
FIG. 3 is a front view of the winding stator structure of the present invention;
FIG. 4 is a right side view of the winding stator structure of the present invention;
FIG. 5 is a front view of a stator slot heat sink left shroud ring configuration of the present invention;
FIG. 6 is a cross-sectional view of a stator slot heat sink left shroud ring configuration of the present invention;
FIG. 7 is a front view of a stator slot heat sink right shroud ring configuration of the present invention;
FIG. 8 is a cross-sectional view of a stator slot heat sink right shroud ring structure of the present invention.
Detailed Description
The embodiments of the invention will now be described in detail with reference to the accompanying drawings:
as shown in fig. 1 to 8, a permanent magnet motor with a built-in heat dissipation waterway is characterized in that: the cooling device comprises a motor main shaft 43, wherein the left side and the right side of the motor main shaft 43 are respectively connected with a front end cover 1 and a cooler rear end cover 31 through a front bearing 9 and a rear bearing 22; the front end cover 1 and the cooler rear end cover 31 can rotate relative to the motor spindle 43; an aluminum alloy casing 11 with heat dissipation ribs is arranged between the front end cover 1 and the cooler rear end cover 31; the motor main shaft 43 is connected with a rotor yoke body 35; the inner wall of the rotor yoke body 35 is provided with a plurality of motor magnetic steels 34 through magnetic steel frameworks; a plurality of stator inner ring waterway channels 29 are arranged in the cooler rear end cover 31; the cooler rear end cover 31 is provided with a plurality of water blocking pieces 44 and stator inner ring water channel water passing grooves 36, and the water blocking pieces 44, the stator inner ring water channel water passing grooves 36 and the stator inner ring water channel 29 form a circulating cooling water loop; the cooler rear end cover 31 is provided with a stator inner ring waterway water inlet 28 and a stator inner ring waterway water outlet 45; the stator inner ring waterway water inlet 28 and the stator inner ring waterway water outlet 45 are respectively communicated with the stator inner ring waterway water channel 29; the cooler rear end cover 31 is provided with a winding stator 46; the rotor yoke 35 houses the winding stator 46; a radiator copper pipe 38 in a groove is arranged in a stator groove on the winding stator 46; the left end and the right end of the winding stator 46 are respectively connected with a stator groove radiator left cover ring 40 and a stator groove radiator right cover ring 32, the stator groove radiator left cover ring 40 and the stator groove radiator right cover ring 32 are respectively provided with a stator groove heat dissipation water passing groove 47, the stator groove radiator left cover ring 40, the stator groove heat dissipation water passing groove 47, the in-groove radiator copper pipe 38 and the stator groove radiator right cover ring 32 form a stator groove internal circulation cooling water path, the stator groove radiator right cover ring 32 is provided with a stator groove internal cooling water pipe water outlet 30 and a stator groove internal cooling water pipe water inlet 301, and the stator inner ring water path water outlet 45 is communicated with the stator groove internal cooling water pipe water inlet 301 through an outer water pipe; thereby forming a series water path, cooling water enters from a water inlet 28 of the stator inner ring water path and flows out from a water outlet 30 of a cooling water pipe in the stator groove; the main lead-out wire 19 on the winding stator 46 is connected with the aviation socket 18 on the aluminum alloy casing 11; the rear end cover 31 of the cooler is provided with a rotary transformer stator 23; the motor spindle 43 is provided with a rotary transformer rotor 24 matched with the rotary transformer stator 23; the rotary change outgoing line on the rotary change stator 23 is connected with the main outgoing line 19.
The winding stator 46 is provided with the stator slot insulating plate framework 37, so that the winding of the stator winding is facilitated.
The front end cover 1 of the invention is provided with a waterproof vent valve 10 for replacing the air inside the motor.
The stator slot on the winding stator 46 of the invention is provided with the radiator copper pipe 38 in the slot, and the red copper is the best heat conduction material next to silver; the copper pipe 38 of the radiator in the groove can be filled with cooling liquid to form a water-cooling type motor, and cold air is filled to form an air-cooling type motor, the loss of the motor mainly comprises copper loss and iron loss, and the copper loss is higher than the iron loss. The invention solves the problem; through water shutoff piece 44, the recirculated cooling water return circuit that stator inner circle water course crossed basin 36 and stator inner circle water route water course 29 and formed takes away the heat that the stator iron lost, through stator groove radiator left side cover ring 40, stator groove heat dissipation crosses basin 47, radiator copper pipe 38 in the groove, the stator inslot recirculated cooling water route that stator groove radiator right side cover ring 32 formed takes away stator copper heat loss, the cooling effect of motor has greatly been improved, the efficiency of motor greatly improves, the duration of motor peak torque and peak power prolongs greatly, the overload capacity of motor is showing and improves, equal power and efficiency are compared, motor volume and weight reduce 50%.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (1)
1. The utility model provides a permanent-magnet machine in built-in heat dissipation water route which characterized in that: the motor comprises a motor main shaft, wherein the left side and the right side of the motor main shaft are respectively connected with a front end cover and a cooler rear end cover through a front bearing and a rear bearing; the front end cover and the cooler rear end cover can rotate relative to the motor main shaft; an aluminum alloy shell with heat dissipation ribs is arranged between the front end cover and the rear end cover of the cooler; the motor main shaft is connected with a rotor yoke body; the inner wall of the rotor yoke body is provided with a plurality of motor magnetic steels through a magnetic steel framework; a plurality of stator inner ring waterway channels are arranged in the rear end cover of the cooler; a plurality of water blocking pieces and stator inner ring water channel water passing grooves are arranged on the rear end cover of the cooler, and the water blocking pieces, the stator inner ring water channel water passing grooves and the stator inner ring water channel water channels form a circulating cooling water loop; a stator inner ring waterway water inlet and a stator inner ring waterway water outlet are formed in the rear end cover of the cooler; the stator inner ring waterway water inlet and the stator inner ring waterway water outlet are respectively communicated with the stator inner ring waterway water channel; a winding stator is arranged on the rear end cover of the cooler; the rotor yoke body is used for covering the winding stator inside; a radiator copper pipe in a slot is arranged on the winding stator; the left end and the right end of the winding stator are respectively connected with a stator groove radiator left cover ring and a stator groove radiator right cover ring, the stator groove radiator left cover ring and the stator groove radiator right cover ring are respectively provided with a stator groove heat dissipation water passing groove, the stator groove radiator left cover ring, the stator groove heat dissipation water passing groove, a groove middle radiator copper pipe and the stator groove radiator right cover ring form a stator groove internal circulation cooling water path, the stator groove radiator right cover ring is provided with a stator groove internal cooling water pipe water outlet and a stator groove internal cooling water pipe water inlet, the stator inner ring water path water outlet is communicated with the stator groove internal cooling water pipe water inlet through an outer water pipe, so that a series water path is formed, and cooling water enters from the stator inner ring water path water inlet and flows out from the stator groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160829.7A CN110718985A (en) | 2019-11-23 | 2019-11-23 | Permanent magnet motor with built-in heat dissipation waterway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160829.7A CN110718985A (en) | 2019-11-23 | 2019-11-23 | Permanent magnet motor with built-in heat dissipation waterway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110718985A true CN110718985A (en) | 2020-01-21 |
Family
ID=69215502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911160829.7A Pending CN110718985A (en) | 2019-11-23 | 2019-11-23 | Permanent magnet motor with built-in heat dissipation waterway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110718985A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371236A (en) * | 2020-04-16 | 2020-07-03 | 宁德时代电机科技有限公司 | High-torque circumference returns high heat dissipation permanent magnetism wheel hub motor device in shape water route |
| WO2023110914A1 (en) * | 2021-12-17 | 2023-06-22 | Valeo Eautomotive Germany Gmbh | Rotor for an electrical machine having a tubular cooling channel |
-
2019
- 2019-11-23 CN CN201911160829.7A patent/CN110718985A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371236A (en) * | 2020-04-16 | 2020-07-03 | 宁德时代电机科技有限公司 | High-torque circumference returns high heat dissipation permanent magnetism wheel hub motor device in shape water route |
| CN111371236B (en) * | 2020-04-16 | 2024-05-31 | 宁德时代电机科技有限公司 | High-efficiency high-heat-dissipation permanent magnet hub motor device with high-torque circumferential circular waterway |
| WO2023110914A1 (en) * | 2021-12-17 | 2023-06-22 | Valeo Eautomotive Germany Gmbh | Rotor for an electrical machine having a tubular cooling channel |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200121 |