CN210780406U

CN210780406U - Oil-cooled motor for two-wheeled electric vehicle

Info

Publication number: CN210780406U
Application number: CN201921740917.XU
Authority: CN
Inventors: 郭平全
Original assignee: Foshan Taifu Vehicle Industry Technology Co ltd
Current assignee: Foshan Taifu Vehicle Industry Technology Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-16
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses an oil-cooled motor for a two-wheeled electric vehicle, which comprises a motor shell, a stator, a rotating shaft, a rotor, a rear cover plate, a vent valve, cooling oil and a rotor sealing plate, and has the advantages of simple structure, no need of a cooling fan and an oil circulation pipeline, and capability of radiating a coil at the same time; secondly, set up through-hole and breather valve to the inside circulation of air of motor when making to rotate, the through-hole outflow can not be followed to the while cooling oil.

Description

Oil-cooled motor for two-wheeled electric vehicle

Technical Field

The utility model relates to a two-wheeled electric motor car accessory technical field, concretely relates to oil-cooled motor for two-wheeled electric motor car.

Background

An electric motor is a drive device widely used in a variety of machines.

The motor for two-wheeled electric vehicle is a driving device specially for two-wheeled electric vehicle.

The existing motor for the two-wheeled electric vehicle is provided with an electric fan at an end cover of the two-wheeled electric vehicle for heat dissipation, but the method has higher noise.

The oil-cooled motor has the advantages of low noise and good heat dissipation effect.

However, the existing oil-cooled motor has a complex structure, needs to be provided with a circulating oil supply system, and cannot be used for a two-wheeled electric vehicle. And the two-wheeled electric motor car motor calorific capacity is less, need not to set up oil feeding system and cools down the cooling oil, can design a oily cold electrical machines that is used for two-wheeled electric motor car from this.

Disclosure of Invention

The utility model aims at providing a two-wheeled electric motor car is with cold motor of oil to prior art not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oil-cooled motor for a two-wheeled electric vehicle comprises a motor shell, a stator, a rotating shaft, a rotor, a rear cover plate, a ventilation valve, cooling oil and a rotor sealing plate, wherein the stator is integrally annular, the stator is fixedly arranged in the motor shell, one end of the rotating shaft is rotatably connected with the motor shell and extends outwards from the motor shell, the other end of the rotating shaft is fixedly connected with the rotor, the rotor is integrally annular, the rotor and the stator are coaxial, a sealing bearing is arranged between the rotor and the stator so that the rotor and the stator are rotatably connected, the rotor is provided with more than two through holes in a circumferential array, coils are fixedly arranged in the through holes of the rotor, the rear cover plate is fixedly arranged on the motor shell and provided with an openable oil inlet, a gap is formed between the rear cover plate and the rotor, and the end of the rotor, which is far away from the rear cover plate, is fixedly provided with the rotor sealing plate for sealing, the center of the rotating shaft is provided with a through hole, a vent valve is fixedly arranged at the through hole, the cooling oil fills a gap between the rotor and the rear cover plate, the liquid level of the cooling oil is higher than the lowest point of the rotating shaft, and the height of the cooling oil is lower than the lowest point of the vent valve.

Furthermore, a rubber ring is fixedly arranged at the joint of the stator and the motor shell.

Further, the other end of the rotor is also provided with a conduction plate, the conduction plate is made of heat conduction materials, and the coil is tightly attached to the conduction plate.

Further, a rubber sleeve is arranged at the joint of the motor shell and the bearing.

Furthermore, the oil inlet is a threaded hole, and the rear cover plate is provided with a locking screw for locking the oil inlet.

Further, the cooling oil is cooling lubricating oil.

Furthermore, the rotating shaft is provided with a groove along one end of the motor shell extending outwards.

Furthermore, the rear cover plate is provided with an observation window for observing the height of the cooling oil.

Further, the vent valve is a waterproof vent valve for automobile electricity.

The utility model discloses following beneficial effect has:

the oil cooling motor for the two-wheeled electric vehicle has the advantages that the structure is simple, a cooling fan is not required to be arranged, an oil circulation pipeline is not required to be arranged, and the heat dissipation of the rotor can be realized; secondly, set up through-hole and breather valve to the inside circulation of air of motor when making to rotate, the through-hole outflow can not be followed to the while cooling oil.

Drawings

Fig. 1 is a sectional view of an oil-cooled motor for a two-wheeled electric vehicle according to the present invention;

fig. 2 is a front view of the rear cover plate of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the present invention.

The utility model relates to an oil-cooled motor for two-wheeled electric vehicle as shown in fig. 1-2, comprising a motor housing 1, a stator 2, a rotating shaft 3, a rotor 4, a back cover plate 5, a vent valve 6, a cooling oil 7 and a rotor sealing plate 8, wherein the stator 2 is in a ring shape as a whole, the stator 2 is fixed in the motor housing 1, one end of the rotating shaft 3 is connected with the motor housing 1 in a rotating way and extends outwards from the motor housing 1, the other end of the rotating shaft 3 is fixedly connected with the rotor 4, the rotor 4 is in a ring shape as a whole, the rotor 4 is coaxial with the stator 2, a sealing bearing 22 is arranged between the rotor 4 and the stator 2 to ensure that the rotor 4 and the stator 2 are connected in a rotating way, the rotor 4 has more than two through holes in a circumferential array, a coil 41 is fixed in the through hole of the rotor 4, the back cover plate 5 is fixed on the motor, the rear cover plate 5 is provided with an openable oil inlet 51, a gap is formed between the rear cover plate 5 and the rotor 4, one end, far away from the rear cover plate 5, of the rotor 4 is fixedly provided with a rotor sealing plate 8 for sealing, the center of the rotating shaft 3 is provided with a through hole 31, a vent valve 6 is fixedly arranged at the through hole 31, the gap between the rotor 4 and the rear cover plate 5 is filled with cooling oil 7, the liquid level of the cooling oil 7 is higher than the lowest point of the rotating shaft 3, and the height of the cooling oil 7 is lower than the lowest point of the vent valve 6.

The utility model discloses when using, the staff is earlier followed cooling oil 7 oil inlet 51 pours into, until cooling oil 7's liquid level is higher than the minimum of pivot 3, cooling oil 7's liquid level is less than the minimum of breather valve 6, and the motor circular telegram makes rotor 4 rotates, thereby makes rotor 4's coil 41 can get into along with the rotation repeatedly cooling oil 7, thereby makes coil 41 quilt cooling oil 7 cools off, and coil 41 rotary cycle gets into cooling oil 7 simultaneously and has guaranteed coil 41's cooling is even.

The utility model has the advantages that: 1. the structure is simple, and the coil 41 can be radiated without arranging a cooling fan or an oil circulation pipeline; 2. the through hole 31 and the breather valve 6 are provided so that the air inside the motor circulates while the cooling oil 7 does not flow out of the through hole 31 when rotating.

Further, a rubber ring 21 is fixedly arranged at the joint of the stator 2 and the motor shell 1.

More specifically, by providing the rubber ring 21, the cooling oil 7 is prevented from flowing out from the gap between the stator 2 and the motor housing 1.

Further, the other end of the rotor 4 is further provided with a conducting plate 42, the conducting plate 42 is made of a heat conducting material, and the coil 41 is tightly attached to the conducting plate 42.

More specifically, by providing the conduction plate 42 such that the conduction plate 42 is in close contact with the coil 41, the heat of the coil 41 can be transferred to the conduction plate 42, so that the conduction plate 42 is in contact with the cooling oil 7 during rotation, and the phenomenon that the cooling oil 7 enters the coil 41 to cause the rotor 4 to be subjected to an excessive friction force and rotate unsmoothly is avoided.

Further, the oil inlet 51 is a threaded hole, and the rear cover plate 3 is provided with a locking screw 53 for locking the oil inlet 51.

More specifically, the oil inlet 51 is provided with a threaded hole, and the locking screw 53 is adopted to seal and lock the oil inlet 51, so that the processing and the manual operation are convenient.

Further, the cooling oil 7 is a cooling lubricating oil.

More specifically, choose cooling oil for use, it has the fast advantage of heat dissipation to realize radiating effect, it has lubricated effect simultaneously, cooling oil fills motor housing 1 with the space of bearing 21, thereby it is smooth and easy to guarantee to rotate.

Further, a groove 32 is formed at one end of the rotating shaft 3 extending outwards along the motor housing 1.

More specifically, a groove 32 is provided to facilitate the fixed connection of the shaft 3 with external parts.

Further, the rear cover plate 5 is opened with an observation window 52 for observing the height of the cooling oil 7.

More specifically, the height of the cooling oil 7 can be observed with the naked eye by providing the observation window 52.

Further, the vent valve 6 is a waterproof vent valve for automobile electricity.

More specifically, a waterproof vent valve is selected, so that the cooling oil 7 can be prevented from flowing out of the through hole 31.

Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.

Claims

1. The utility model provides a two-wheeled electric motor car is with oil-cooled motor which characterized in that: comprises a motor shell (1), a stator (2), a rotating shaft (3), a rotor (4), a rear cover plate (5), a ventilation valve (6), cooling oil (7) and a rotor sealing plate (8), wherein the stator (2) is integrally annular, the stator (2) is fixedly arranged in the motor shell (1), one end of the rotating shaft (3) is rotatably connected with the motor shell (1) and extends outwards from the motor shell (1), the other end of the rotating shaft (3) is fixedly connected with the rotor (4), the rotor (4) is integrally annular, the rotor (4) and the stator (2) are coaxial, a sealing bearing (22) is arranged between the rotor (4) and the stator (2) to ensure that the rotor (4) and the stator (2) are rotatably connected, the rotor (4) is provided with more than two through holes in a circumferential array, a coil (41) is fixedly arranged in each through hole of the rotor (4), the rear cover plate (5) is fixedly arranged on the motor shell (1), an openable oil inlet (51) is formed in the rear cover plate (5), a gap is formed between the rear cover plate (5) and the rotor (4), a rotor sealing plate (8) used for sealing is fixedly arranged at one end, far away from the rear cover plate (5), of the rotor (4), a through hole (31) is formed in the center of the rotating shaft (3), a vent valve (6) is fixedly arranged at the through hole (31), the gap between the rotor (4) and the rear cover plate (5) is filled with cooling oil (7), the liquid level of the cooling oil (7) is higher than the lowest point of the rotating shaft (3), and the height of the cooling oil (7) is lower than the lowest point of the vent valve (6).

2. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: and a rubber ring (21) is fixedly arranged at the joint of the stator (2) and the motor shell (1).

3. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the other end of the rotor (4) is further provided with a conduction plate (42), the conduction plate (42) is made of heat conduction materials, and the coil (41) is tightly attached to the conduction plate (42).

4. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the oil inlet (51) is a threaded hole, and the rear cover plate (5) is provided with a locking screw (53) for sealing the oil inlet (51).

5. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the cooling oil (7) is cooling lubricating oil.

6. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the rotating shaft (3) is provided with a groove (32) along one end of the motor shell (1) extending outwards.

7. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the rear cover plate (5) is provided with an observation window (52) for observing the height of the cooling oil (7).

8. The oil-cooled motor for a two-wheeled electric vehicle according to claim 1, characterized in that: the vent valve (6) is a waterproof vent valve for automobile electricity.