CN211508791U - Motor casing and motor using same - Google Patents

Motor casing and motor using same Download PDF

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Publication number
CN211508791U
CN211508791U CN202020338917.3U CN202020338917U CN211508791U CN 211508791 U CN211508791 U CN 211508791U CN 202020338917 U CN202020338917 U CN 202020338917U CN 211508791 U CN211508791 U CN 211508791U
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heat dissipation
air
water
casing
motor
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CN202020338917.3U
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Chinese (zh)
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罗满
王凯旋
程文
王云艳
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Prestolite Electric Weifang Ltd
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Prestolite Electric Weifang Ltd
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Abstract

The utility model discloses a motor casing and motor of using thereof, motor casing includes annular casing, and the casing center vacuole formation is equipped with the water-cooling heat dissipation passageway in the casing, and the outer wall of casing is equipped with delivery port and water inlet, delivery port and water inlet and water-cooling heat dissipation passageway intercommunication, its characterized in that: the water-cooling heat dissipation channel comprises a plurality of axial water channels distributed at intervals, an air-cooling heat dissipation channel arranged axially is also arranged in the shell, the air-cooling heat dissipation channel is positioned between two adjacent axial water channels, an air inlet and an air outlet are arranged at two ends of the air-cooling heat dissipation channel, and the air inlet and the air outlet are arranged on the inner wall surface of the shell; the air-cooled heat dissipation channel can transfer heat in the cavity into the shell, the heat exchanges heat with cooling liquid in the water-cooled heat dissipation channel in the shell, and the motor shell is simple in mechanism, good in heat dissipation effect, small in size and light in weight.

Description

Motor casing and motor using same
The technical field is as follows:
the utility model relates to a motor casing and motor of using thereof.
Background art:
the existing motor comprises a rotating shaft, a rotor assembly, a stator assembly and a shell assembly, wherein the shell assembly comprises a motor shell and end covers arranged at two ends of the motor shell; a water-cooling heat dissipation channel is arranged in the motor shell, a water outlet and a water inlet are formed in the outer wall surface of the shell, the water outlet, the water inlet and the water-cooling heat dissipation channel are formed, and the water-cooling heat dissipation channel dissipates heat of the interior of the motor. However, the motor with such a structure has the following disadvantages: along with the improvement of the power density of the motor, more and more heat is generated by the motor in unit volume, the heat generated by the stator assembly can be dissipated through the water-cooling heat dissipation channel, but the cooling effect of the water-cooling heat dissipation channel on the rotor assembly is very small, the heat generated by the rotor assembly cannot be dissipated quickly, and the rotor assembly is always in a high-temperature state. The permanent magnet in the rotor assembly is most sensitive to temperature, the permanent magnet is easy to generate irreversible demagnetization due to long-term high temperature, so that the motor loses power, and the service life of the bearing is greatly reduced due to the high temperature, so that the heat dissipation treatment of the rotor assembly is the direction of structural design.
The invention content is as follows:
the utility model aims at providing a motor casing and motor of using thereof can solve among the prior art poor problem of cooling effect of water-cooling heat dissipation passageway to rotor subassembly.
The purpose of the utility model is realized by the following technical scheme.
A first object of the utility model is to provide a motor casing, including annular casing, the centre of the casing vacuole formation is equipped with the water-cooling heat dissipation passageway in the casing, and the outer wall of casing is equipped with delivery port and water inlet, delivery port and water inlet and water-cooling heat dissipation passageway intercommunication, its characterized in that: the water-cooling heat dissipation channel comprises a plurality of axial water channels distributed at intervals, an air-cooling heat dissipation channel arranged axially is further arranged in the shell, the air-cooling heat dissipation channel is located between every two adjacent axial water channels, an air inlet and an air outlet are arranged at two ends of the air-cooling heat dissipation channel, and the air inlet and the air outlet are arranged on the inner wall surface of the shell.
The water-cooling heat dissipation channel further comprises a plurality of steering water channels arranged on two sides of the axial water channels, and the steering water channels are communicated with two adjacent axial water channels.
The two ends of the shell are provided with a plurality of screw holes, and the screw holes are positioned between two adjacent steering water channels.
The steering water channel is positioned on the outer side of the air-cooled heat dissipation channel.
The inner wall of the air-cooled heat dissipation channel is provided with heat dissipation ribs, and the heat dissipation ribs divide the air-cooled heat dissipation channel into a plurality of sub-channels.
A second object of the utility model is to provide a motor, including pivot, rotor subassembly, stator module and shell subassembly, the shell subassembly includes motor housing and the end cover of installing at motor housing both ends, and stator module installs in motor housing's cavity, and the pivot is together fixed with the rotor subassembly, and the rotor subassembly suit installs the bearing in stator module on the end cover, and the pivot is connected its characterized in that through two bearings and shell subassembly: the motor casing is the motor casing described above, and the stator assembly is installed between the air inlet and the air outlet.
The rotating shaft is provided with a cooling fan, and the cooling fan is arranged on one side of the rotor assembly and is positioned between the rotor assembly and the air outlet.
Compared with the prior art, the utility model, following effect has:
1) motor casing includes annular casing, and the casing center vacuole formation is equipped with the water-cooling passageway in the casing, and the outer wall of casing is equipped with delivery port and water inlet, delivery port and water inlet and water-cooling passageway intercommunication, its characterized in that: the water-cooling heat dissipation channel comprises a plurality of axial water channels distributed at intervals, an air-cooling heat dissipation channel arranged axially is also arranged in the shell, the air-cooling heat dissipation channel is positioned between two adjacent axial water channels, an air inlet and an air outlet are arranged at two ends of the air-cooling heat dissipation channel, and the air inlet and the air outlet are arranged on the inner wall surface of the shell; in the air-cooled heat dissipation channel can transmit the heat in the cavity to the casing, the heat exchanges with the coolant liquid in the water-cooled heat dissipation channel in the casing, make stator module and the rotor subassembly installed inside motor housing better dispel the heat, this kind of combination air-cooled heat dissipation and liquid cooling heat dissipation can reduce rotor subassembly operating temperature by a wide margin, avoid long-term high temperature to make the permanent magnet produce irreversible demagnetization easily, and the mechanism is simple, the radiating effect is good, and is small in size, light in weight.
2) Other advantages of the present invention will be described in detail in the examples section.
Description of the drawings:
fig. 1 is a schematic structural diagram of a motor casing according to an embodiment of the present invention;
FIG. 2 is a top view of the motor housing;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
FIG. 5 is a cross-sectional view of a motor housing;
FIG. 6 is an expanded view of the water cooling heat dissipation channel and the air cooling heat dissipation channel of the motor casing;
fig. 7 is a schematic structural diagram of a motor according to a second embodiment of the present invention;
fig. 8 is a sectional view of the motor.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following detailed description of preferred embodiments and accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 6, the embodiment provides a motor casing, including an annular casing 10, a cavity 11 is formed in the center of the casing 10, a water-cooling heat dissipation channel 12 is provided in the casing 10, an outer wall surface 13 of the casing 10 is provided with a water outlet 131 and a water inlet 132, the water outlet 131 and the water inlet 132 are communicated with the water-cooling heat dissipation channel 12, and the motor casing is characterized in that: the water-cooling heat dissipation channel 12 includes a plurality of axial water channels 121 distributed at intervals, an air-cooling heat dissipation channel 14 disposed axially is further disposed in the housing 10, the air-cooling heat dissipation channel 14 is located between two adjacent axial water channels 121, an air inlet 141 and an air outlet 142 are disposed at two ends of the air-cooling heat dissipation channel 14, and the air inlet 141 and the air outlet 142 are disposed on an inner wall surface 15 of the housing 10. The air-cooled heat dissipation channel 14 can transmit the heat in the cavity 11 to the shell 10, the heat exchanges heat with the cooling liquid in the water-cooled heat dissipation channel 12 in the shell 10, the air-cooled heat dissipation channel 14 is located between two adjacent axial water channels 121, the heat dissipation effect is good, the structure enables the stator assembly and the rotor assembly which are installed inside the motor shell to better dissipate heat, the combined air-cooled heat dissipation and liquid-cooled heat dissipation can greatly reduce the working temperature of the rotor assembly, avoid long-term high temperature from easily enabling the permanent magnet to generate irreversible demagnetization, the mechanism is simple, the heat dissipation effect is good, the size is small, and the weight is light.
The water-cooling heat dissipation channel 12 further includes a plurality of diversion water channels 122 disposed at two sides of the axial water channel 121, and the diversion water channels 122 communicate with two adjacent axial water channels 121.
The housing 10 has a plurality of screw holes 16 at both ends thereof, and the screw holes 16 are located between two adjacent water guide channels 122. The screw holes 16 are used for mounting the end caps.
The diversion water channel 122 is located outside the air-cooled heat dissipation channel 14.
The inner wall of the air-cooled heat dissipation channel 14 is provided with heat dissipation ribs 143, and the heat dissipation ribs 143 divide the air-cooled heat dissipation channel 14 into a plurality of sub-channels 144. The heat dissipating ribs 143 increase the contact area between the air and the casing 10, and are more favorable for the casing 10 to absorb the heat inside the air-cooled heat dissipating channel 14, thereby increasing the heat exchange rate.
Example two:
as shown in fig. 7 and 8, the embodiment provides a motor, including rotating shaft 2, rotor assembly 3, stator assembly 4 and shell assembly, the shell assembly includes motor casing 1 and end covers 5 installed at both ends of motor casing 1, stator assembly 4 is installed in cavity 11 of motor casing 1, rotating shaft 2 is fixed together with rotor assembly 3, rotor assembly 3 is nested in stator assembly 4, install bearing 51 on end cover 5, rotating shaft 2 is connected with shell assembly through two bearings 51, its characterized in that: the motor housing 1 is the motor housing according to the first embodiment, and the stator assembly 4 is installed between the air inlet 141 and the air outlet 142. Two heat dissipation systems of water cooling heat dissipation and air cooling heat dissipation are formed in the motor, the water cooling heat dissipation system dissipates heat of the stator assembly 4, the air cooling heat dissipation system dissipates heat of the rotor assembly 3, the air flow direction of the air cooling heat dissipation system is as shown by an arrow in fig. 8, air in the cavity 11 flows through the rotor assembly 3 and then becomes high-temperature air, the high-temperature air enters the air cooling heat dissipation channel 14 from the air inlet 141 and exchanges heat with cooling liquid in the water cooling heat dissipation channel 12 in the air cooling heat dissipation channel 14, the air becomes low-temperature air after cooling and flows back to the cavity 11 from the air outlet 142, the temperature of the rotor assembly 3 is effectively reduced, permanent magnets in the rotor assembly 3 cannot be demagnetized, the motor is.
The rotating shaft 2 is provided with a heat dissipation fan 21, and the heat dissipation fan 21 is installed at one side of the rotor assembly 3 and located between the rotor assembly 3 and the air outlet 142. The heat dissipation fan 21 enhances the air flow speed in the cavity 11, and increases the heat dissipation efficiency of the air-cooled heat dissipation system. The stator assembly and the rotor assembly which are arranged inside the motor shell are enabled to radiate better through the structure, the working temperature of the rotor assembly can be greatly reduced through the combined air-cooled radiation and liquid-cooled radiation, the phenomenon that the permanent magnet is irreversibly demagnetized due to long-term high temperature is avoided, and the structure is simple, good in radiating effect, small in size and light in weight.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement modes, and are all included in the scope of the present invention.

Claims (7)

1. The utility model provides a motor casing, includes annular casing (10), and casing (10) center vacuole formation (11) is equipped with water-cooling heat dissipation passageway (12) in casing (10), and outer wall (13) of casing (10) are equipped with delivery port (131) and water inlet (132), and delivery port (131) and water inlet (132) and water-cooling heat dissipation passageway (12) intercommunication, its characterized in that: the water-cooling heat dissipation channel (12) comprises a plurality of axial water channels (121) distributed at intervals, an air-cooling heat dissipation channel (14) arranged axially is further arranged in the shell (10), the air-cooling heat dissipation channel (14) is located between every two adjacent axial water channels (121), an air inlet (141) and an air outlet (142) are arranged at two ends of the air-cooling heat dissipation channel (14), and the air inlet (141) and the air outlet (142) are arranged on the inner wall surface (15) of the shell (10).
2. A motor casing according to claim 1, wherein: the water-cooling heat dissipation channel (12) further comprises a plurality of diversion water channels (122) arranged on two sides of the axial water channel (121), and the diversion water channels (122) are communicated with two adjacent axial water channels (121).
3. A motor housing according to claim 2, wherein: a plurality of screw holes (16) are formed in the two ends of the shell (10), and the screw holes (16) are located between every two adjacent steering water channels (122).
4. A motor housing according to claim 3, wherein: the diversion water channel (122) is positioned outside the air-cooled heat dissipation channel (14).
5. The motor casing according to any one of claims 1 to 4, wherein: the inner wall of the air-cooled heat dissipation channel (14) is provided with heat dissipation ribs (143), and the heat dissipation ribs (143) divide the air-cooled heat dissipation channel (14) into a plurality of sub-channels (144).
6. The utility model provides a motor, including pivot (2), rotor subassembly (3), stator module (4) and shell subassembly, the shell subassembly includes motor casing (1) and end cover (5) of installing at motor casing (1) both ends, install in cavity (11) of motor casing (1) stator module (4), pivot (2) are together fixed with rotor subassembly (3), rotor subassembly (3) suit is in stator module (4), install bearing (51) on end cover (5), pivot (2) are connected with the shell subassembly through two bearing (51), its characterized in that: the motor housing (1) is as claimed in any one of claims 1 to 5, and the stator assembly (4) is installed between the air inlet (141) and the air outlet (142).
7. An electrical machine according to claim 6, wherein: and a heat radiation fan (21) is arranged on the rotating shaft (2), and the heat radiation fan (21) is arranged on one side of the rotor component (3) and is positioned between the rotor component (3) and the air outlet (142).
CN202020338917.3U 2020-03-18 2020-03-18 Motor casing and motor using same Active CN211508791U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020338917.3U CN211508791U (en) 2020-03-18 2020-03-18 Motor casing and motor using same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020338917.3U CN211508791U (en) 2020-03-18 2020-03-18 Motor casing and motor using same

Publications (1)

Publication Number Publication Date
CN211508791U true CN211508791U (en) 2020-09-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112615478A (en) * 2020-12-04 2021-04-06 电子科技大学中山学院 New energy automobile electricity driving system capable of achieving heat dissipation circularly
CN112701853A (en) * 2020-12-29 2021-04-23 电子科技大学中山学院 New energy automobile electricity drives mechanism
CN115021468A (en) * 2022-08-08 2022-09-06 常州市昊升电机股份有限公司 Hollow shaft motor and working method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112615478A (en) * 2020-12-04 2021-04-06 电子科技大学中山学院 New energy automobile electricity driving system capable of achieving heat dissipation circularly
CN112701853A (en) * 2020-12-29 2021-04-23 电子科技大学中山学院 New energy automobile electricity drives mechanism
CN112701853B (en) * 2020-12-29 2022-03-29 电子科技大学中山学院 New energy automobile electricity drives mechanism
CN115021468A (en) * 2022-08-08 2022-09-06 常州市昊升电机股份有限公司 Hollow shaft motor and working method thereof
CN115021468B (en) * 2022-08-08 2022-10-21 常州市昊升电机股份有限公司 Hollow shaft motor and working method thereof

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