CN219041529U - Rotary motor for enhancing heat dissipation of bearing - Google Patents
Rotary motor for enhancing heat dissipation of bearing Download PDFInfo
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- CN219041529U CN219041529U CN202223403894.8U CN202223403894U CN219041529U CN 219041529 U CN219041529 U CN 219041529U CN 202223403894 U CN202223403894 U CN 202223403894U CN 219041529 U CN219041529 U CN 219041529U
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- heat dissipation
- end cover
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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Abstract
The utility model discloses a rotary motor capable of enhancing heat dissipation of a bearing, which comprises a motor shell, and a stator, a rotor and a rotor shaft which are coaxially arranged in the motor shell, wherein a first bearing and a second bearing are arranged at two ends of the rotor shaft, a first rotor fan and a second rotor fan are arranged at two ends of the rotor, the first rotor fan is coaxial with the first bearing and is arranged along the circumferential direction of the first bearing, the second rotor fan is coaxial with the second bearing and is arranged along the circumferential direction of the second bearing, and the motor shell comprises a shell body arranged at the periphery of the stator, and a first end cover and a second end cover which are arranged at two ends of the shell body. According to the scheme, the axial air inlet of the air inlet is utilized, the cooling effect of the bearing is improved, meanwhile, the centrifugal fan is adopted by the rotor fan, the axial air inlet of the rotor fan is ensured, the heat radiating area is increased by utilizing the heat radiating ribs, and the air outlet is convenient for the centrifugal fan to throw air out from the circumferential direction by utilizing centrifugal force, so that the heat radiating effect is improved.
Description
Technical Field
The utility model relates to the field of new energy automobiles, in particular to a rotating motor capable of enhancing heat dissipation of a bearing.
Background
The Bsg motor is connected with the engine through a belt, as long as the engine rotates, the BSG motor rotates at a corresponding rotating speed, and the rotating speed ratio of the motor to the engine is n:1, namely the rotating speed of the motor is always n times of the rotating speed of the engine, the rotating speed of the BSG motor is continuously rotated relative to the rotating speed of the engine, which is n times of the rotating speed of the engine, is very dangerous for a bearing serving as a key part for supporting the safe operation of a motor rotor, and the bearing of the BSG motor is difficult to ensure that the problem of the bearing of the BSG motor does not exist in the service life of the whole vehicle, the continuous rotation of the BSG motor can aggravate the rolling friction in the bearing to cause heat accumulation, and if the heat cannot be well transmitted, the service life of the bearing can be greatly reduced, the problem of scrapping the motor is caused, and the like.
The existing motor heat dissipation mode is mainly that a heat dissipation rib is arranged at the bottom of the inner peripheral surface of a motor end cover shell or a ventilation opening is arranged on the motor shell, and the heat dissipation effect is improved by utilizing air circulation, for example, the patent name of the utility model patent with the anti-splashing motor heat dissipation end cover is CN210225112U, a plurality of heat dissipation parts which are uniformly distributed in the circumference are arranged on the bottom surface of the end cover body, the shape of each heat dissipation part is a fan-shaped boss, a through heat dissipation ventilation opening is arranged in the middle of each fan-shaped boss, the heat dissipation ventilation opening is communicated with the inside of the end cover body, a diversion groove is arranged between every two adjacent heat dissipation parts, in the structure, diversion inclined surfaces are arranged on two sides of each heat dissipation part, so that rainwater splashed on the end cover can flow along the diversion groove and the diversion inclined surfaces, and the splashed rainwater can be prevented from entering the motor, however, the heat dissipation ventilation opening of the motor heat dissipation end cover can ensure that the air enters, but the heat dissipation effect of the hot air in the motor is limited, and no bearing with higher heat accumulation is carried out in a targeted manner.
Disclosure of Invention
Accordingly, in order to solve the above-described problems, the present utility model provides a rotating electrical machine that enhances heat dissipation of a bearing.
The utility model is realized by the following technical scheme:
the utility model provides a strengthen radiating rotating electrical machines of bearing, includes the motor casing, and coaxial stator, rotor and the rotor shaft that sets up in the motor casing, the both ends of rotor shaft are provided with first bearing and second bearing, the both ends of rotor are provided with first rotor fan and second rotor fan, first rotor fan and first bearing are coaxial and along the circumference setting of first bearing, second rotor fan and second bearing are coaxial and along the circumference setting of second bearing, the motor casing is including setting up the casing main part of stator periphery, and set up first end cover and the second end cover at casing main part both ends, be provided with first air intake along the circumference of first bearing on the first end cover, be provided with the second air intake along the circumference of second bearing on the second end cover, be provided with the heat dissipation muscle in first air intake and the second air intake.
Preferably, a first bearing chamber is arranged in the middle of the first end cover, the first bearing is coaxially arranged in the first bearing chamber, a second bearing chamber is arranged in the middle of the second end cover, and the second bearing is coaxially arranged in the second bearing chamber.
Preferably, the first air inlet is arranged along the circumference of the first bearing chamber, the first air inlet is arranged at the circumference of the first bearing chamber at equal angles, the second air inlet is arranged along the circumference of the second bearing chamber, and the second air inlet is arranged at the circumference of the second bearing chamber at equal angles.
Preferably, the first rotor fan and the second rotor fan are centrifugal fans, through holes for allowing the rotor shaft to pass through are formed in the middle of the first rotor fan and the second rotor fan, buckles are arranged on the inner periphery of the through holes, positioning grooves are formed in the end faces of the two ends of the rotor, the first rotor fan is fixed at the first end of the rotor through the positioning grooves, and the second rotor fan is fixed at the second end of the rotor through the positioning grooves.
Preferably, the first end cover is provided with a first air outlet along the circumferential direction of the first rotor fan, and the second end cover is provided with a second air outlet along the circumferential direction of the second rotor fan.
Preferably, the number of the heat dissipation ribs in each second air inlet is the same and the heat dissipation ribs are arranged at equal intervals, the heat dissipation ribs in the first air inlet are arranged along the outer peripheral surface of the first bearing chamber, and the heat dissipation ribs in the second air inlet are arranged along the outer peripheral surface of the second bearing chamber.
Preferably, the axial length of the heat dissipation rib in the first air inlet is the same as that of the first bearing chamber, the radial extension height of the heat dissipation rib along the first bearing chamber is 7mm, and the width of the heat dissipation rib is 2mm.
Preferably, the axial length of the heat dissipation rib in the second air inlet is the same as that of the second bearing chamber, the radial extension height of the heat dissipation rib along the second bearing chamber is 7mm, and the width of the heat dissipation rib is 2.5mm.
Preferably, the first end cover and the second end cover are aluminum alloy end covers.
The technical scheme of the utility model has the beneficial effects that:
1. through first air intake and second air intake at motor both ends axial air inlet, first air intake sets up along the circumference of first bearing, and the second air intake sets up along the circumference of second bearing, therefore, first bearing and second bearing are located the air inlet route at motor both ends respectively to the cooling effect of bearing has been increased.
2. The rotor fan adopts centrifugal fan, and corresponding, first air intake and first rotor fan axial arrangement, second air intake and second rotor fan axial arrangement to ensure rotor fan axial air inlet, in addition, both ends end cover sets up the air outlet along the circumference of each end rotor fan, and the centrifugal fan of being convenient for utilizes centrifugal force to throw out the air from the circumferencial direction, increases radiating effect.
3. The end cover is the aluminum alloy end cover, and its heat conduction effect is because the heat conduction effect of air, sets up the heat dissipation muscle in the periphery of air intake department along the bearing room to increase heat radiating area, in addition, the heat dissipation muscle sets up in the air intake, has further improved the atmospheric pressure of air intake department, accords with centrifugal fan air intake department wind flow little, the great demand of pressure.
Drawings
FIG. 1 is a cross-sectional view of a rotating electrical machine with enhanced bearing heat dissipation (arrows representing air flow direction);
fig. 2 is a perspective view of a rotating electrical machine in a first direction with enhanced bearing heat dissipation;
fig. 3 is a perspective view of the rotating electrical machine in a second direction with enhanced bearing heat dissipation;
FIG. 4 is a schematic view of a rotating electrical machine at a first end with enhanced bearing heat dissipation;
fig. 5 is a schematic view of a rotating electrical machine at a second end with enhanced bearing heat dissipation.
Detailed Description
So that the objects, advantages and features of the present utility model can be more clearly and specifically set forth, a more particular description of the preferred embodiments will be rendered by the following non-limiting description thereof. The embodiment is only a typical example of the technical scheme of the utility model, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the utility model.
It is also stated that, in the description of the aspects, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like in this description are used for descriptive purposes only and are not to be construed as indicating or implying a ranking of importance, or as implicitly indicating the number of technical features shown. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the present utility model, the meaning of "plurality" means two or more, unless specifically defined otherwise.
The utility model discloses a rotary motor for enhancing heat dissipation of a bearing, as shown in fig. 1-5, the rotary motor comprises a motor shell, a stator 1, a rotor 2 and a rotor shaft 3 which are coaxially arranged in the motor shell, wherein a first bearing 4 and a second bearing 5 are arranged at two ends of the rotor shaft 3, a first rotor fan 6 and a second rotor fan 7 are arranged at two ends of the rotor 2, the first rotor fan 6 and the first bearing 4 are coaxial and are arranged along the circumferential direction of the first bearing 4, the second rotor fan 7 and the second bearing 5 are coaxial and are arranged along the circumferential direction of the second bearing 5, the motor shell comprises a shell main body 10 which is arranged at the periphery of the stator 1, a first end cover 8 and a second end cover 9 which are arranged at two ends of the shell main body 10, the shell main body 10 and the first end cover 8 and the second end cover 9 are fixedly connected, a first air inlet 801 is arranged on the first end cover 8 along the circumferential direction of the first bearing 4, a second rotor fan 901 is arranged on the second end cover 9 along the circumferential direction of the second bearing 5, the first rotor fan 901 is arranged on the second end cover 9 along the first end cover 7 and is arranged along the circumferential direction of the first end cover 7, and the first end cover 901 is arranged along the first end cover 7 and the first end cover 6 and the second end cover 7 are opposite to the first end cover 1 along the axial direction, thereby simultaneously ensuring the heat dissipation effect of the bearings at the two ends of the motor and the motor groove axially arranged inside the motor by axially air inlet at the two ends of the motor.
The middle part of the first end cover 8 is provided with a first bearing chamber 802, the first bearing 4 is coaxially arranged in the first bearing chamber 802, the middle part of the second end cover 9 is provided with a second bearing chamber 902, the second bearing 5 is coaxially arranged in the second bearing chamber 902, the first air inlet 801 is circumferentially arranged along the first bearing chamber 802, the first air inlet 801 is uniformly angularly arranged at the periphery of the first bearing chamber 802, the second air inlet 901 is circumferentially arranged along the second bearing chamber 902, the second air inlet 901 is uniformly angularly arranged at the periphery of the second bearing chamber 902, and cold air enters the motor from the first air inlet 801 and the second air inlet 901 in the axial direction, and the first air inlet 801 is circumferentially arranged along the first bearing chamber 802, so that the first bearing 4 and the second bearing 5 are both located at the air inlet of the path, and the first bearing 4 and the second bearing 5 are further reinforced.
As shown in fig. 1, the first rotor fan 6 and the second rotor fan 7 are centrifugal fans, and the working principle of the centrifugal fans is that after fluid is sucked from the axial direction of the fans, the fluid is thrown out from the circumferential direction by using centrifugal force, and the centrifugal fans have small air flow but large air pressure, so that the air inlet axially opposite to the rotor 2 fan can ensure the air inlet effect of the rotor 2 fan axially.
The middle parts of the first rotor fan 6 and the second rotor fan 7 are provided with through holes for the rotor shaft 3 to pass through, the inner circumference of each through hole is provided with a buckle, the end faces of the two ends of the rotor 2 are provided with positioning grooves, the first rotor fan 6 is fixed at the first end of the rotor 2 through the positioning grooves, and the second rotor fan 7 is fixed at the second end of the rotor 2 through the positioning grooves, so that the first rotor fan 6 and the second rotor fan 7 rotate along with the rotor 2.
In a preferred embodiment, as shown in fig. 2-5, the first end cover 8 is provided with a first air outlet 803 along the circumferential direction of the first rotor fan 6, the second end cover 9 is provided with a second air outlet 903 along the circumferential direction of the second rotor fan 7, and the air outlet is provided along the circumferential direction of the rotor 2 fan, so that the hot air thrown out from the circumferential direction by the rotor 2 fan can be effectively discharged, and the heat dissipation effect in the motor is further improved.
The heat dissipation ribs 11 are arranged in the first air inlet 801 and the second air inlet 901, in a preferred embodiment, the first end cover 8 and the second end cover 9 are aluminum alloy end covers, the heat conduction effect of aluminum alloy is higher than that of air, when the first end cover 8 and the second end cover 9 are aluminum alloy end covers, the first bearing chamber 802 for accommodating the first bearing 4 and the second bearing chamber 902 for accommodating the second bearing 5 are all made of aluminum alloy materials, the heat dissipation effect of the bearings can be enhanced, and the heat dissipation ribs 11 arranged in the first air inlet 801 and the second air inlet 901 can increase the heat dissipation area, improve the heat dissipation effect, and further, the heat dissipation ribs 11 are arranged in the air inlets, so that the air inlet flow rate can be increased when air is taken in, and the working requirements of the centrifugal fan are met.
In a preferred embodiment, the heat dissipation ribs 11 in each second air inlet 901 are equally spaced, so as to ensure uniformity of heat dissipation effect, the heat dissipation ribs 11 in the first air inlet 801 are disposed along the outer peripheral surface of the first bearing chamber 802, and the heat dissipation ribs 11 in the second air inlet 901 are disposed along the outer peripheral surface of the second bearing chamber 902, so as to further increase heat dissipation effect of the two bearings.
In an embodiment, the axial length of the heat dissipating rib 11 in the first air inlet 801 is the same as the axial length of the first bearing chamber 802, and the radial extension height of the heat dissipating rib 11 along the first bearing chamber 802 is 7mm, and the width of the heat dissipating rib 11 is 2mm.
In an embodiment, the axial length of the heat dissipating rib 11 in the second air inlet 901 is the same as the axial length of the second bearing chamber 902, and the radial extension height of the heat dissipating rib 11 along the second bearing chamber 902 is 7mm, and the width of the heat dissipating rib 11 is 2.5mm.
The utility model has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.
Claims (9)
1. The utility model provides an strengthen radiating rotating electrical machines of bearing, includes motor casing to and coaxial stator, rotor and the rotor shaft that sets up in the motor casing, its characterized in that: the two ends of the rotor shaft are provided with a first bearing and a second bearing, the two ends of the rotor are provided with a first rotor fan and a second rotor fan, the first rotor fan is coaxial with the first bearing and is arranged along the circumference of the first bearing, the second rotor fan is coaxial with the second bearing and is arranged along the circumference of the second bearing, the motor housing comprises a housing body arranged on the periphery of the stator, a first end cover and a second end cover arranged at two ends of the housing body, a first air inlet is formed in the first end cover along the circumferential direction of the first bearing, a second air inlet is formed in the second end cover along the circumferential direction of the second bearing, and heat dissipation ribs are arranged in the first air inlet and the second air inlet.
2. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the middle part of the first end cover is provided with a first bearing chamber, the first bearing is coaxially arranged in the first bearing chamber, the middle part of the second end cover is provided with a second bearing chamber, and the second bearing is coaxially arranged in the second bearing chamber.
3. The rotating electrical machine for enhancing bearing heat dissipation according to claim 2, wherein: the first air inlets are arranged along the circumference of the first bearing chamber, the first air inlets are arranged at equal angles on the periphery of the first bearing chamber, the second air inlets are arranged along the circumference of the second bearing chamber, and the second air inlets are arranged at equal angles on the periphery of the second bearing chamber.
4. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the centrifugal rotor type air conditioner is characterized in that the first rotor fan and the second rotor fan are centrifugal fans, through holes allowing a rotor shaft to pass through are formed in the middle of the first rotor fan and the middle of the second rotor fan, buckles are arranged on the inner periphery of the through holes, positioning grooves are formed in the end faces of two ends of the rotor, the first rotor fan is fixed at the first end of the rotor through the positioning grooves, and the second rotor fan is fixed at the second end of the rotor through the positioning grooves.
5. The rotating electrical machine for enhancing bearing heat dissipation according to claim 4, wherein: the first end cover is provided with a first air outlet along the circumferential direction of the first rotor fan, and the second end cover is provided with a second air outlet along the circumferential direction of the second rotor fan.
6. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the number of the radiating ribs in each second air inlet is the same and the radiating ribs in the first air inlet are arranged at equal intervals, the radiating ribs in the second air inlet are arranged along the outer peripheral surface of the second bearing chamber.
7. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the axial length of the radiating rib in the first air inlet is the same as that of the first bearing chamber, the radial extension height of the radiating rib along the first bearing chamber is 7mm, and the width of the radiating rib is 2mm.
8. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the axial length of the radiating rib in the second air inlet is the same as that of the second bearing chamber, the radial extension height of the radiating rib along the second bearing chamber is 7mm, and the width of the radiating rib is 2.5mm.
9. The rotating electrical machine for enhancing bearing heat dissipation according to claim 1, wherein: the first end cover and the second end cover are aluminum alloy end covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223403894.8U CN219041529U (en) | 2022-12-19 | 2022-12-19 | Rotary motor for enhancing heat dissipation of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223403894.8U CN219041529U (en) | 2022-12-19 | 2022-12-19 | Rotary motor for enhancing heat dissipation of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219041529U true CN219041529U (en) | 2023-05-16 |
Family
ID=86285120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223403894.8U Active CN219041529U (en) | 2022-12-19 | 2022-12-19 | Rotary motor for enhancing heat dissipation of bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219041529U (en) |
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2022
- 2022-12-19 CN CN202223403894.8U patent/CN219041529U/en active Active
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