CN211429058U - Disc type motor cooling shell - Google Patents
Disc type motor cooling shell Download PDFInfo
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- CN211429058U CN211429058U CN202020203213.5U CN202020203213U CN211429058U CN 211429058 U CN211429058 U CN 211429058U CN 202020203213 U CN202020203213 U CN 202020203213U CN 211429058 U CN211429058 U CN 211429058U
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Abstract
The utility model discloses a disc type motor cooling casing, which comprises a casing with a bearing chamber and a cover plate which can be covered at the bottom end of the casing, wherein a rotary groove is arranged in the casing, the rotary groove forms a closed cooling flow channel after the casing is covered by the cover plate, and a liquid inlet and a liquid outlet which are communicated with the cooling flow channel from head to tail are arranged on the side surface of the casing; the shell and the cover plate are welded into a whole by adopting a friction stir welding process. The utility model has the advantages that the heat generated on the motor stator iron core and the bearing can be transmitted to the base and taken away by the cooling liquid circulating in the cooling flow channel, the heat dissipation effect is very obvious, and the temperature of the motor can be well controlled; the strength of the casing is increased, the sealing effect is better, the assembly process steps are simplified, the structure is simple, and the realization is easy.
Description
Technical Field
The utility model belongs to the technical field of permanent magnet disc motor, specifically a disc motor cooling casing.
Background
The high-power density disk type motor has the characteristics of small volume and light weight, but because the motor is small in volume, the heat dissipation area of the motor is smaller than that of the traditional motor, and the power density of the motor is limited to a certain extent. In the conventional permanent magnet disc type motor, a cooling channel is arranged on a motor shell to realize motor cooling, and a sealing gasket or a sealing glue is used between the shell surface and an end cover and is fixed by a screw.
For example, chinese patent document CN202940678U discloses a "disc motor cooling end cap" in 2013, 5, 15, which includes a base with a bearing chamber and a cover plate capable of covering the bottom end of the base, wherein a rotary groove is formed on the bottom end surface of the base, the cover plate covers the bottom end of the base to form a closed cooling channel, and a liquid inlet and a liquid outlet are formed on the side surface of the base and are communicated with the cooling channel end to end. It has the following disadvantages: the complicated degree of difficulty of technical operation is high during the assembly, and sealed effect is not good easily to cause the coolant liquid seepage, and set screw hole has taken partial casing area, has reduced heat radiating area, has increased motor weight, is unfavorable for the lightweight production of motor.
Disclosure of Invention
Based on the problem, the utility model provides a disk motor cooling casing can strengthen the leakproofness of casing cooling channel, reduces assembly process's the degree of difficulty, simplifies assembly process step to the cooling effect is good.
The utility model discloses a further purpose is with stator set screw setting at the motor surface, further reduces the technology degree of difficulty.
In order to realize the purpose of the invention, the utility model adopts the following technical scheme:
a disc type motor cooling casing comprises a casing with a bearing chamber and a cover plate capable of being covered at the bottom end of the casing in a sealing manner, wherein a rotary groove is formed in the casing, the cover plate covers the casing to enable the rotary groove to form a closed cooling flow channel, and a liquid inlet and a liquid outlet which are communicated with the cooling flow channel from head to tail are formed in the side surface of the casing; the shell and the cover plate are welded into a whole by adopting a friction stir welding process.
Because the bottom surface of the shell is provided with the rotary groove, the rotary groove forms a closed cooling flow channel after the bottom end of the shell is sealed by the cover plate, so that heat generated on a stator core and a bearing of the motor is conducted to the shell and is taken away by cooling liquid circulating in the cooling flow channel, the heat dissipation effect is very obvious, and the temperature of the motor can be well controlled; the structure of the utility model adopts the friction stir welding process to weld the shell and the cover plate into a whole, so that the strength is increased, the sealing effect is better, the assembly process steps are simplified, the mounting mode is simpler, more convenient and more reliable than the mounting mode using screws in the past, and the shell area is utilized to a greater extent so that the heat dissipation effect is better; the utility model discloses simple structure easily realizes, just need rationally to design the flow of water route and cooling water to the disk motor of different power and just can realize the motor heat dissipation, and can obtain great heat radiating area and better radiating effect, realizes the high power density and the powerful of motor, and the range of application is extensive.
Preferably, the outer side surface of the shell is provided with fixing screws distributed in an annular array. The screw hole is exposed on the surface of the machine shell, the stator fixing screw completely avoids the cooling flow channel, the sealing effect is further ensured, and the screw hole is exposed on the surface of the machine shell, so that the process steps are simplified to a greater extent, and the process difficulty is reduced.
Preferably, a partition plate is arranged between the rotary groove and the liquid outlet, and a flow returning plate arranged along the groove is arranged in the groove. The cooling flow channel is divided into continuous return flow channels by the return flow plates, so that the uniformity of the surface cooling of the shell can be improved.
Preferably, the cooling flow channel is provided with a cooling protrusion. Strengthen the cooling effect, improve motor casing's heat-sinking capability.
To sum up, the beneficial effects of the utility model are that: the structure is simple, the realization is easy, the assembly process steps are simplified, and the installation is simpler and more reliable than the installation by using screws in the prior art; the motor heat dissipation can be realized only by reasonably designing the water paths and the flow of cooling water for the disc motors with different powers, and the disc motors can obtain larger heat dissipation area and better heat dissipation effect, and have wide application range.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the middle housing of the present invention.
Fig. 3 is a cross-sectional view at a-a in fig. 2.
Wherein: a cover plate 3 of a shell 2 of the bearing chamber 1 is provided with a groove 4, a cooling flow channel 5 is provided with a liquid inlet 6, a liquid outlet 7 and a flow returning plate 8, so that the cooling bulge 9 is formed.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 3, the embodiment is a cooling casing for a disc motor, and includes a housing 2 with a bearing chamber 1 and a cover plate 3 capable of closing the bottom end of the housing 2, wherein the bottom end surface of the housing 2 is provided with a rotary groove 4, the cover plate 3 closes the bottom end of the housing 2 to make the rotary groove 4 form a closed cooling flow channel 5, and the housing 2 and the cover plate 3 are welded together by friction stir welding. A liquid inlet 6 and a liquid outlet 7 which are communicated with the cooling flow passage 5 end to end are arranged on the side surface of the shell 2; the outer side surface of the shell 2 is provided with screw holes distributed around the axis of the shell 2 in an annular array, and fixing screws are arranged in the screw holes. The bearing and the stator core of the motor can be cooled after circulating cooling liquid is introduced into the cooling flow channel 5 through the liquid inlet 6 and the liquid outlet 7. A division plate is arranged between the rotary groove 4 and the liquid outlet 7, and a flow returning plate 8 arranged along the groove 4 is arranged in the groove 4. One end of the return plate 8 is connected between the liquid inlet 6 and the liquid outlet 7, and the other end of the return plate 8 is separated from the edge of the groove 4, so that the inner side and the outer side of the return plate 8 form a cooling flow channel 5 which is close to and continuously communicated. The cooling flow channels 5 on the two sides of the backflow plate 8 can exchange heat with each other through the backflow plate 8 in the flowing process of the cooling liquid, so that the temperature difference of the cooling water at the end parts of the liquid inlet 6, the liquid outlet 7 and the backflow plate 8 is smaller, the surface temperature of the motor is basically consistent, and the problems of large temperature gradient and uneven cooling of the motor in a cooling water circulation system are well solved. The cooling bulge 9 at the inner side of the backflow plate 8 is positioned at the corner of the inner side of the backflow plate 8; the cooling protrusion 9 on the outer side of the backflow plate 8 is located at the convex angle on the outer side of the backflow plate 8, the cooling protrusion 9 is of a cylindrical structure, and the edge of the cooling protrusion 9 is provided with a transition fillet, so that cooling liquid can flow in the cooling flow channel 5 conveniently.
After the structure of the utility model is adopted, the bottom surface of the shell 2 is provided with the rotary groove 4, the rotary groove 4 forms the closed cooling flow channel 5 after the cover plate 3 covers the bottom end of the shell 2, so that the heat generated on the stator core and the bearing of the motor is conducted to the shell and is taken away by the cooling liquid circulating in the cooling flow channel 5, the heat dissipation effect is very obvious, and the temperature of the motor can be well controlled; the shell 2 and the cover plate 3 are welded into a whole by adopting a friction stir welding process, so that the strength is increased, the sealing effect is better, the assembly process steps are simplified, the mounting mode is simpler, more convenient and firmer than the mounting mode using screws in the prior art, and the area of the shell is utilized to a greater extent so that the heat dissipation effect is better; the utility model discloses cooling flow channel 5 has been avoided completely to structural neutron set screw, has further guaranteed sealed effect, just the utility model discloses simple structure easily realizes that the disc motor to different powers only needs rationally to design the flow of water route and cooling water and just can realize the motor heat dissipation, and can obtain great heat radiating area and better radiating effect, realizes the high power density and the high power of motor, and the range of application is extensive.
Claims (4)
1. A disc type motor cooling casing is characterized by comprising a casing with a bearing chamber and a cover plate capable of being covered at the bottom end of the casing in a sealing manner, wherein a rotary groove is formed in the casing, the cover plate covers the casing to enable the rotary groove to form a closed cooling flow channel, and a liquid inlet and a liquid outlet which are communicated with the cooling flow channel from head to tail are formed in the side surface of the casing; the shell and the cover plate are welded into a whole by adopting a friction stir welding process.
2. The disc motor cooler housing of claim 1, wherein the housing has an annular array of retaining screws on an outer surface thereof.
3. The disc motor cooler housing of claim 1, wherein a divider is disposed between the trough and the outlet, and a return plate is disposed along the trough.
4. A disc motor cooler housing according to claim 1, 2 or 3, wherein cooling projections are provided in the cooling channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020203213.5U CN211429058U (en) | 2020-02-24 | 2020-02-24 | Disc type motor cooling shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020203213.5U CN211429058U (en) | 2020-02-24 | 2020-02-24 | Disc type motor cooling shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211429058U true CN211429058U (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020203213.5U Active CN211429058U (en) | 2020-02-24 | 2020-02-24 | Disc type motor cooling shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN211429058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459275A (en) * | 2021-12-30 | 2022-05-10 | 北京动力机械研究所 | Precooler flange suitable for big temperature gradient |
| CN117578786A (en) * | 2024-01-15 | 2024-02-20 | 博格华纳汽车零部件（武汉）有限公司 | Thermal management structure for power generation system |
-
2020
- 2020-02-24 CN CN202020203213.5U patent/CN211429058U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114459275A (en) * | 2021-12-30 | 2022-05-10 | 北京动力机械研究所 | Precooler flange suitable for big temperature gradient |
| CN114459275B (en) * | 2021-12-30 | 2024-04-16 | 北京动力机械研究所 | Precooler connecting flange suitable for large temperature gradient |
| CN117578786A (en) * | 2024-01-15 | 2024-02-20 | 博格华纳汽车零部件（武汉）有限公司 | Thermal management structure for power generation system |
| CN117578786B (en) * | 2024-01-15 | 2024-04-12 | 博格华纳汽车零部件（武汉）有限公司 | Thermal management structure for power generation system |
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