CN108847751B - Air cooling system of driving motor for new energy automobile - Google Patents
Air cooling system of driving motor for new energy automobile Download PDFInfo
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- CN108847751B CN108847751B CN201810689015.1A CN201810689015A CN108847751B CN 108847751 B CN108847751 B CN 108847751B CN 201810689015 A CN201810689015 A CN 201810689015A CN 108847751 B CN108847751 B CN 108847751B
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- motor
- shell
- cooling water
- channel
- water channel
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- 238000001816 cooling Methods 0.000 title claims abstract description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 68
- 238000002955 isolation Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 79
- 230000005389 magnetism Effects 0.000 claims description 18
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Abstract
The invention discloses an air cooling system of a driving motor for a new energy automobile, which comprises a motor shell, wherein the motor shell is of a through column casing structure; the two ends of the motor shell are respectively provided with a shell front end cover and a shell rear end cover; the motor comprises a motor shell, a motor rotor, a motor and a motor cover, wherein a stator coil is fixedly arranged on the inner wall of the motor shell in a coaxial mode, and an inner ring of the stator coil is rotatably arranged on the motor rotor in a coaxial mode; the motor main shaft is connected with the motor rotor coaxially and synchronously; the motor has a simple structure, and the method of adding the air disturbance blades on the left magnetic isolation plate and the right magnetic isolation plate is adopted, so that continuous disturbance airflow is generated near the stator and the rotor of the motor, heat generated on the stator coil is continuously and rapidly diffused to the motor shell, and then the motor shell is continuously cooled by being matched with the cooling water channel on the motor shell, so that the cooling effect of the motor is achieved.
Description
Technical Field
The invention belongs to the field of motors, and particularly relates to an air cooling system of a driving motor for a new energy automobile.
Background
The stator coil can give off heat because of the current heating effect in the running process of the motor, and if the motor is not cooled in time, the internal resistance of the motor becomes large, so that the performance of the motor is affected, and even the motor is burnt out.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides the air cooling system of the driving motor for the new energy automobile, which is high in cooling efficiency.
The technical scheme is as follows: in order to achieve the above purpose, the air cooling system of the driving motor for the new energy automobile comprises a motor shell, wherein the motor shell is of a through column casing structure; the two ends of the motor shell are respectively provided with a shell front end cover and a shell rear end cover; the motor comprises a motor shell, a motor rotor, a motor and a motor cover, wherein a stator coil is fixedly arranged on the inner wall of the motor shell in a coaxial mode, and an inner ring of the stator coil is rotatably arranged on the motor rotor in a coaxial mode; the motor main shaft is connected with the motor rotor coaxially and synchronously;
The two ends of the motor rotor are respectively and fixedly provided with a left magnetism isolating plate and a right magnetism isolating plate in a coaxial way; the left magnetic isolation plate and the right magnetic isolation plate are of annular iron disc structures; a first air cavity is formed between the left magnetism isolating plate and the front end cover of the shell, and a second air cavity is formed between the right magnetism isolating plate and the rear end cover of the shell;
A first air disturbance blade is distributed on one side of the left magnetic isolation plate, which is close to the first wind cavity, in a circumferential array; and second air disturbance blades distributed in a circumferential array are arranged on one side of the right magnetic isolation plate, which is close to the second wind cavity.
Further, the motor main shaft is respectively connected with the front end cover of the shell and the rear end cover of the shell in a coaxial rotation way through a first bearing and a second bearing; and the output end of the motor spindle penetrates out from the front shaft hole of the front end cover of the shell coaxially.
Further, a limiting shaft shoulder is arranged at the position of the left magnetism isolating plate of the motor spindle, and the limiting shaft shoulder is propped against the left end face of the inner ring of the left magnetism isolating plate;
The shaft wall of the right magnetic isolation plate of the motor spindle is a threaded shaft wall, and a lock nut is arranged on the threaded shaft wall and is in locking connection with the right magnetic isolation plate.
Further, a plurality of strip-shaped cooling water channels are arranged in the shell wall of the motor shell; the length direction of each cooling water channel is parallel to the axis direction of the motor shell, and the cooling water channels are uniformly distributed in a circumferential array along the axis of the motor shell;
the plurality of cooling water channels comprises a water inlet cooling water channel, a water outlet cooling water channel and a plurality of transition cooling water channels; the water inlet cooling water channel and the water outlet cooling water channel are adjacent water channels;
One end of the water outlet cooling water channel is provided with a water outlet hole, and one end of the water outlet cooling water channel far away from the water outlet hole is communicated with a transition cooling water channel adjacent to the water outlet hole through a communicating channel; one end of the water inlet cooling water channel is provided with a water inlet hole, and the end far away from the water inlet hole is communicated with an adjacent transitional cooling water channel through a communication channel;
The two adjacent transition cooling water channels are communicated with each other through a conduction channel, and the two adjacent conduction channels are positioned at two ends of the commonly communicated transition cooling water channel.
Further, a plurality of strip-shaped heat dissipation teeth are arranged on one side of each cooling water channel, which is close to the inner wall surface of the motor shell, in an array protruding mode, and two ends of each strip-shaped heat dissipation tooth extend to two ends of the corresponding cooling water channel.
Further, the water inlet joint and the water outlet joint are respectively communicated with the water inlet hole and the water outlet hole; the other ends of the water inlet joint and the water outlet joint are respectively communicated with a water inlet pipe and a water outlet pipe.
The beneficial effects are that: the motor has a simple structure, and the method of adding the air disturbance blades on the left magnetic isolation plate and the right magnetic isolation plate is adopted, so that continuous disturbance airflow is generated near the stator and the rotor of the motor, heat generated on the stator coil is continuously and rapidly diffused to the motor shell, and then the motor shell is continuously cooled by being matched with the cooling water channel on the motor shell, so that the cooling effect of the motor is achieved.
Drawings
FIG. 1 is an overall front cross-sectional view of an electric motor;
FIG. 2 is a schematic perspective view of the motor as a whole;
FIG. 3 is a first schematic view of a left magnetic shield;
FIG. 4 is a second schematic view of a left magnetic shield;
FIG. 5 is a schematic view of a front end cap of the housing;
FIG. 6 is a schematic perspective view of a motor housing;
FIG. 7 is a front view of the motor housing;
FIG. 8 is a schematic view in the direction D of FIG. 7;
FIG. 9 is a schematic view in direction B of FIG. 7;
Fig. 10 is a schematic view in the direction C of fig. 7.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The air cooling system of the driving motor for the new energy automobile as shown in the attached figures 1 to 10 comprises a motor shell 5, wherein the motor shell 5 is of a through cylindrical structure; the two ends of the motor shell 5 are respectively provided with a shell front end cover 2 and a shell rear end cover 11; the inner wall of the motor shell 5 is coaxially and fixedly provided with a stator coil 4, and the inner ring of the stator coil 4 is coaxially and rotatably provided with a motor rotor 6; the motor rotor 6 is characterized by further comprising a motor main shaft 14, wherein the motor main shaft 14 is synchronously connected with the motor rotor 6 in a coaxial way;
The two ends of the motor rotor 6 are respectively and fixedly provided with a left magnetism isolating plate 15 and a right magnetism isolating plate 13 in a coaxial way; the left magnetic isolation plate 15 and the right magnetic isolation plate 13 are of annular iron disc structures; a first air cavity 3 is formed between the left magnetism isolating plate 15 and the front end cover 2 of the shell, and a second air cavity 7 is formed between the right magnetism isolating plate 13 and the rear end cover 11 of the shell; a first air disturbance blade 16 is distributed on one side of the left magnetic isolation plate 15, which is close to the first wind cavity 3, in a circumferential array; a second air disturbance blade distributed in a circumferential array is arranged on one side of the right magnetic isolation plate 13 close to the second wind cavity 7; in the running process of the motor, the left magnetic isolation plate 15 and the right magnetic isolation plate 13 synchronously rotate along with the motor rotor 6, so that the first air disturbance blade 16 and the second air disturbance blade of the motor strongly swirl air in the first air cavity 3 and the second air cavity 7 respectively, and the flowing heat dissipation air is formed in the inner cavity of the whole motor shell 5, so that the heat generated in the motor is uniformly transferred to the motor shell 5, and the phenomena of local high temperature and uneven heat dissipation on the stator coil 4 are effectively prevented;
The motor main shaft 14 in the embodiment is respectively connected with the front end cover 2 of the shell and the rear end cover 11 of the shell in a coaxial rotation way through a first bearing 17 and a second bearing 10; and the output end 28 of the motor main shaft 14 coaxially penetrates out of the front shaft hole 18 of the front end cover 2 of the shell; a limiting shaft shoulder 21 is arranged at the position of the left magnetism isolating plate 15 of the motor main shaft 14, and the limiting shaft shoulder 21 presses the left end face of the inner ring 20 of the left magnetism isolating plate 15; the shaft wall of the right magnetic isolation plate 13 of the motor main shaft 14 is a threaded shaft wall 23, a lock nut 22 is arranged on the threaded shaft wall 23, and the lock nut 22 is in locking connection with the right magnetic isolation plate 13; the left magnetism isolating plate 15 and the right magnetism isolating plate 13 are detachably fixed by adopting the limiting shaft shoulder 21 and the locking nut 22;
A plurality of strip-shaped cooling water channels 29 are arranged in the shell wall of the motor shell 5; the length direction of each cooling water channel 29 is parallel to the axis direction of the motor housing 5, and each cooling water channel 29 is uniformly distributed in a circumferential array along the axis of the motor housing 5; the plurality of cooling water channels 29 comprise a water inlet cooling water channel 29.1, a water outlet cooling water channel 29.2 and a plurality of transition cooling water channels 29.3; wherein the inlet water cooling water channel 29.1 and the outlet water cooling water channel 29.2 are adjacent water channels; one end of the water outlet cooling water channel 29.2 is provided with a water outlet hole 31, and one end of the water outlet cooling water channel 29.2 far away from the water outlet hole 31 is communicated with the adjacent transitional cooling water channel 29.3 through a conducting channel 40; one end of the water inlet cooling water channel 29.1 is provided with a water inlet hole 32, and one end of the water inlet cooling water channel 29.1 far away from the water inlet hole 32 is communicated with an adjacent transitional cooling water channel 29.3 through a conducting channel 40; each two adjacent transitional cooling water channels 29.3 are communicated with each other through a conducting channel 40, and each two adjacent conducting channels 40 are positioned at two ends of the communicated transitional cooling water channel 29.3; the arrangement of the cooling water channels 29 ensures that the water flow inside the wall of the motor housing 5 does not repeat and flow uniformly through each heated area;
since the inner wall of the motor housing 5 is a main heated portion, in this embodiment, a plurality of strip-shaped heat dissipation teeth 30 are arranged on one side of each cooling water channel 29, which is close to the inner wall surface of the motor housing 5, in an array manner, and two ends of each strip-shaped heat dissipation tooth 30 extend to two ends of the corresponding cooling water channel 29, and the strip-shaped heat dissipation teeth 30 not only increase the heat dissipation area in the cooling water channel 29, but also greatly reduce the resistance to water flow due to the structure that the extending direction of the strip-shaped heat dissipation teeth is parallel to the water flow direction.
The water inlet joint 44 and the water outlet joint 43 are respectively connected with the water inlet hole 32 and the water outlet hole 31 in a communicated manner; the other ends of the water inlet joint 44 and the water outlet joint 43 are respectively communicated with a water inlet pipe and a water outlet pipe;
During operation of the motor, cold water enters the water inlet cooling water channel 29.1 through the water inlet pipe and the water inlet joint 44, then water in the water inlet cooling water channel 29.1 sequentially flows through the transition cooling water channels 29.3, and finally water heated by the motor shell 5 flows out of the water outlet cooling water channel 29.2 into the water outlet joint 43 and the water outlet pipe, so that water cooling circulation is realized; the water cooling circulation structure is matched with continuous rotational flow air generated by the left magnetic isolation plate 15 and the right magnetic isolation plate 13 in the motor shell 5, so that heat generated in the motor is uniformly transferred to the inner wall of the motor shell 5, and then the heat on the motor shell 5 is taken away by cooling water flowing through the cooling water channel 29, and the heat dissipation efficiency is greatly improved.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (4)
1. The utility model provides an air cooling system of driving motor for new energy automobile which characterized in that: the motor comprises a motor shell (5), wherein the motor shell (5) is of a through cylindrical structure; two ends of the motor shell (5) are respectively provided with a shell front end cover (2) and a shell rear end cover (11); the motor comprises a motor shell (5), wherein a stator coil (4) is fixedly arranged on the inner wall of the motor shell in a coaxial manner, and a motor rotor (6) is rotatably arranged on the inner ring of the stator coil (4) in a coaxial manner; the motor rotor (6) is characterized by further comprising a motor main shaft (14), wherein the motor main shaft (14) is synchronously connected with the motor rotor (6) through the coaxial center;
The two ends of the motor rotor (6) are respectively and fixedly provided with a left magnetism isolating plate (15) and a right magnetism isolating plate (13) in a coaxial way; the left magnetic isolation plate (15) and the right magnetic isolation plate (13) are of annular iron disc structures; a first air cavity (3) is formed between the left magnetic isolation plate (15) and the front end cover (2) of the shell, and a second air cavity (7) is formed between the right magnetic isolation plate (13) and the rear end cover (11) of the shell;
A first air disturbance blade (16) is distributed on one side of the left magnetic isolation plate (15) close to the first wind cavity (3) in a circumferential array; a second air disturbance blade distributed in a circumferential array is arranged on one side, close to the second air cavity (7), of the right magnetic isolation plate (13);
a plurality of strip-shaped cooling water channels (29) are arranged in the shell wall of the motor shell (5); the length direction of each cooling water channel (29) is parallel to the axis direction of the motor housing (5), and the cooling water channels (29) are uniformly distributed in a circumferential array along the axis of the motor housing (5);
The plurality of cooling water channels (29) comprise a water inlet cooling water channel (29.1), a water outlet cooling water channel (29.2) and a plurality of transition cooling water channels (29.3); wherein the water inlet cooling water channel (29.1) and the water outlet cooling water channel (29.2) are adjacent water channels;
One end of the water outlet cooling water channel (29.2) is provided with a water outlet hole (31), and one end of the water outlet cooling water channel (29.2) far away from the water outlet hole (31) is communicated with a transition cooling water channel (29.3) adjacent to the water outlet cooling water channel through a conducting channel (40); one end of the water inlet cooling water channel (29.1) is provided with a water inlet hole (32), and one end of the water inlet cooling water channel (29.1) far away from the water inlet hole (32) is communicated with a transition cooling water channel (29.3) adjacent to the water inlet cooling water channel through a conducting channel (40);
Each two adjacent transitional cooling water channels (29.3) are communicated with each other through a conduction channel (40), and each two adjacent conduction channels (40) are positioned at two ends of the communicated transitional cooling water channels (29.3);
A plurality of strip-shaped heat dissipation teeth (30) are arranged on one side of each cooling water channel (29) close to the inner wall surface of the motor shell (5) in an array protruding mode, and two ends of each strip-shaped heat dissipation tooth (30) extend to two ends of the corresponding cooling water channel (29).
2. The air cooling system of a driving motor for a new energy automobile according to claim 1, wherein: the motor main shaft (14) is respectively connected with the front end cover (2) and the rear end cover (11) of the shell in a coaxial rotation way through a first bearing (17) and a second bearing (10); and the output end (28) of the motor main shaft (14) is coaxially penetrated out of the front shaft hole (18) of the front end cover (2) of the shell.
3. The air cooling system of a driving motor for a new energy automobile according to claim 1, wherein: a limiting shaft shoulder (21) is arranged at the position of the left magnetism isolating plate (15) of the motor spindle (14), and the limiting shaft shoulder (21) is propped against the left end face of the inner ring (20) of the left magnetism isolating plate (15);
The shaft wall of the right magnetic isolation plate (13) of the motor main shaft (14) is a threaded shaft wall (23), a lock nut (22) is arranged on the threaded shaft wall (23), and the lock nut (22) is in locking connection with the right magnetic isolation plate (13).
4. The air cooling system of a driving motor for a new energy automobile according to claim 1, wherein: the water inlet joint (44) and the water outlet joint (43) are further included, and one ends of the water inlet joint (44) and the water outlet joint (43) are respectively communicated with the water inlet hole (32) and the water outlet hole (31); the other ends of the water inlet joint (44) and the water outlet joint (43) are respectively communicated with a water inlet pipe and a water outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689015.1A CN108847751B (en) | 2018-06-28 | Air cooling system of driving motor for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689015.1A CN108847751B (en) | 2018-06-28 | Air cooling system of driving motor for new energy automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108847751A CN108847751A (en) | 2018-11-20 |
| CN108847751B true CN108847751B (en) | 2024-06-28 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208558998U (en) * | 2018-06-28 | 2019-03-01 | 苏州索尔达动力科技有限公司 | A kind of magnetic isolation plate structure of novel new-energy automobile driving motor |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208558998U (en) * | 2018-06-28 | 2019-03-01 | 苏州索尔达动力科技有限公司 | A kind of magnetic isolation plate structure of novel new-energy automobile driving motor |
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