CN218416036U

CN218416036U - Motor casing with lubricating oil circulation system

Info

Publication number: CN218416036U
Application number: CN202221793297.8U
Authority: CN
Inventors: 陆学贵; 马明全
Original assignee: Zhejiang Boya Precision Machinery Co ltd
Current assignee: Zhejiang Boya Precision Machinery Co ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2023-01-31
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a motor housing with lubricating oil circulation system. The utility model discloses a: a casing body. The machine shell body comprises a base and a shell, the base is matched with the bearing, and an oil thrower is arranged at the end part of the shell far away from the base; the shell is provided with a water inlet and a water outlet which are communicated through a cooling water channel; a lubricating oil circulating flow passage is arranged on the outer surface of the shell and communicated with the oil thrower, and a communicating hole communicated with the base is formed in one end, away from the oil thrower, of the lubricating oil circulating flow passage; the lubricating oil circulation flow channel is arranged obliquely to the axis of the machine shell body. The motor shell can play a role in liquid cooling by utilizing the design of the cooling water channel, so that the motor shell is integrally scattered more uniformly, the temperature rise of the motor is reduced, and the running condition of the motor is improved; the lubricating oil circulation flow channel designed on the surface of the machine shell is beneficial to the flowing of the lubricating oil, and the flowing lubricating oil is beneficial to heat dissipation while the normal operation of the bearing and the like is ensured.

Description

Motor casing with lubricating oil circulation system

Technical Field

The utility model relates to the technical field of motors, concretely relates to motor housing with lubricating oil circulation system.

Background

With the continuous development of scientific technology and the continuous progress of new energy vehicles and other technologies, the new energy vehicle motor gradually develops towards the directions of high power, high power density, large torque, high rotating speed and high integration. The necessity and demand for hybrid and electric vehicles have increased, so that research into electric machines required for vehicles has also been increasing. The motor is a power device that applies a current to rotate the rotor. The rotor rotates by electromagnetic interaction with the stator. Motors are used in various fields. Also, the vehicle motor may need to be rotated at a high speed and is often exposed to a situation in which it is driven for a long time, and thus a technology for effectively discharging heat generated from the motor is required.

The existing motor shell cooling mode generally adopts the following three modes: ordinary self-cooling, air-cooling and shell liquid cooling. The liquid cooling mode of the shell is adopted, so that the heat dissipation effect is good compared with the common self-cooling and air-cooling motor, the motor efficiency is increased, the torque and the power density of the motor are improved, and the application is wide. The liquid cooling structure of the shell is characterized in that a water channel is arranged in a motor shell, an axial spiral water channel and a radial S-shaped water channel are commonly arranged, but the two forms have the problems of high cost, small water channel width, increased pressure loss and the like. Furthermore, the existing motor housing cannot be recycled well after the lubricant oil is used, so that improvement is needed.

In view of this, we have invented a motor housing with a lubricating oil circulation system.

SUMMERY OF THE UTILITY MODEL

To the not enough of prior art, the utility model aims at providing a motor casing with lubricating oil circulation system has liquid cooling, the circulated advantage of lubricating oil.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

a motor shell with a lubricating oil circulating system comprises a shell body.

The shell body comprises a base and a shell, the base is matched with the bearing, and an oil thrower is arranged at the end part of the shell far away from the base;

the shell is provided with a water inlet and a water outlet which are communicated through a cooling water channel, and the cooling water channel is formed in the shell body;

a lubricating oil circulating flow passage is arranged on the outer surface of the shell and is communicated with the oil thrower, and a communicating hole communicated with the base is formed in one end, far away from the oil thrower, of the lubricating oil circulating flow passage;

the lubricating oil circulating flow channel is arranged obliquely to the axis of the machine shell body.

On the basis of the above scheme and as a preferable scheme of the above scheme, the cooling water channel comprises one or more than one arranged in parallel and arranged in series between the water inlet and the water outlet.

On the basis of the above scheme and as a preferable scheme of the above scheme, the cross section of the cooling water channel is circular.

On the basis of the above scheme and as a preferable scheme of the above scheme, the angle of the lubricating oil circulating flow passage inclined to the axis of the casing body is in the range of 15-45 °.

In addition to the above, as a preferable mode of the above, an oil hole is further provided on an outer wall of the lubricating oil circulation flow passage.

On the basis of the above scheme and as a preferable scheme of the above scheme, the casing body is an aluminum casting.

The utility model has the advantages that:

compared with the prior art, the motor shell of the utility model can play a role of liquid cooling by utilizing the design of the cooling water channel, so that the motor shell is integrally scattered more uniformly, thereby reducing the temperature rise of the motor and improving the running condition of the motor; the lubricating oil circulation flow channel designed on the surface of the machine shell is beneficial to the flowing of the lubricating oil, and the flowing lubricating oil is beneficial to heat dissipation while the normal operation of the bearing and the like is ensured. The utility model has the advantages of simple structure, reasonable design, and strong practicability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of another perspective structure of the present invention;

fig. 3 is a schematic view of the cross-sectional structure of the present invention.

In the figure, 1-cabinet body; 2-a base; 3-a housing; 4-a water inlet; 5-water outlet; 6-cooling water channel; 7-lubricating oil circulation flow channel; 8-communicating holes; 9-oil hole; 10-oil slinger.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 3, a motor casing having a lubricating oil circulation system includes a casing body 1; the machine shell body 1 comprises a base 2 and a shell 3, the base 2 is matched with a bearing, and an oil thrower 10 is arranged at the end part of the shell 3 far away from the base 2; the shell 3 is provided with a water inlet 4 and a water outlet 5, the water inlet 4 and the water outlet 5 are communicated through a cooling water channel 6, and the cooling water channel 6 is formed in the machine shell body 1; a lubricating oil circulating flow passage 7 is formed in the outer surface of the shell 3, the lubricating oil circulating flow passage 7 is communicated with an oil thrower 10, and a communicating hole 8 communicated with the base 2 is formed in one end, far away from the oil thrower 10, of the lubricating oil circulating flow passage 7; the lubricating oil circulation flow passage 7 is arranged obliquely to the axis of the machine shell body 1.

Specifically, the base 2 is matched with a bearing, and an oil thrower 10 is arranged at the end part of the shell 3 far away from the base 2. The bearing lubricating oil of motor rear end gets rid of oil through front end oil thrower dish 10, then flows into rear end bearing department through the lubricating oil circulation flow path 7 of the slope that sets up on the motor casing, specifically is: lubricating oil flows to the base 2 along the oil thrower 10 through the lubricating oil circulating flow channel 7, and then flows to the bearing to protect devices by utilizing the design of the communication hole 8; then, the inner cavity of the machine shell body 1 moves to the direction of the oil thrower 10, and the lubricating oil finally returns to the oil thrower 10 by utilizing the communication design of the inner cavity of the machine shell body 1 and the oil thrower 10, namely the circulation of the lubricating oil is completed. Therefore, the cost is saved, the heat of the machine shell body 1 is taken away by utilizing the flowing of the lubricating oil, and the heat dissipation is facilitated.

Further, cooling water course 6 is including being located water inlet 4 with one or parallelly connected a plurality of that set up of arranging in series between the delivery port 5, preferred, the preferred series arrangement of this embodiment, under the casing size of the same size, tandem type water course can greatly increased the coverage area of water course for it is more even to dispel the heat, thereby reduces the motor temperature rise, improves the operating condition of motor, and then increases the power density and the moment of torsion density of motor. Furthermore, the cross section of the cooling water channel 6 is circular, and the heat dissipation effect can be improved by using cooling water.

Still further, the angle of the lubricating oil circulation flow passage 7 inclined to the axis of the casing body 1 is in the range of 15-45 degrees. The lubricating oil circulation flow channel 7 is obliquely arranged on the axis of the machine shell body 1, and lubricating oil can slowly flow to the base 2 through self weight and reach the bearing through the communication hole 8. Furthermore, the outer wall of the lubricating oil circulating flow passage 7 is also provided with an oil hole 9, which can be sealed by an empty plug piece of plastic, so that the lubricating oil is ensured not to flow out. Still further, the casing body 1 is an aluminum casting which generally meets the requirements of heat resistance, impact resistance, wear resistance and the like, and is convenient to install.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the principles of this invention. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a motor casing with lubricating oil circulation system, includes casing body (1), its characterized in that:

the machine shell body (1) comprises a base (2) and a shell (3), the base (2) is matched with the bearing, and an oil thrower (10) is arranged at the end part, far away from the base (2), of the shell (3);

the shell (3) is provided with a water inlet (4) and a water outlet (5), the water inlet (4) and the water outlet (5) are communicated through a cooling water channel (6), and the cooling water channel (6) is formed in the shell body (1);

a lubricating oil circulating flow passage (7) is formed in the outer surface of the shell (3), the lubricating oil circulating flow passage (7) is communicated with the oil thrower (10), and a communicating hole (8) communicated with the base (2) is formed in one end, away from the oil thrower (10), of the lubricating oil circulating flow passage (7);

the lubricating oil circulating flow passage (7) is arranged obliquely to the axis of the machine shell body (1).

2. The machine housing with a lubricating oil circulation system according to claim 1, characterised in that the cooling water channel (6) comprises one or more arranged in parallel arranged in series between the water inlet (4) and the water outlet (5).

3. The machine housing with a lubricating oil circulation system according to claim 2, characterised in that the cross section of the cooling water channel (6) is circular.

4. The machine casing with a lubricating oil circulation system, according to claim 1, characterized in that the angle of the lubricating oil circulation flow channel (7) inclined to the axis of the casing body (1) is in the range of 15 ° to 45 °.

5. The motor casing with a lubricating oil circulation system according to claim 1, characterized in that the lubricating oil circulation flow passage (7) is further provided with oil holes (9) on the outer wall.

6. The machine casing with a lubricating oil circulation system, according to claim 1, characterized in that the casing body (1) is an aluminum casting.