Oil way applied to cooling stator of oil-cooled motor of non-road mechanical vehicle

By designing an oil circuit structure consisting of a motor housing, an oil collection and injection ring, and a sealing ring on the stator of an oil-cooled motor for non-road machinery vehicles, the problem of increased stator diameter in oil-cooled motors was solved, achieving effective motor placement and temperature stability on vehicles.

CN223957380UActive Publication Date: 2026-02-27LESHENG BOER ELECTRIC (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202520383156.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-27
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The existing oil-cooled motor cooling stator oil circuit design for non-road machinery vehicles results in an increased stator diameter, making it difficult to effectively install on the vehicle.

Method used

Design an oil circuit structure including a motor housing, an oil collection and injection ring, and a sealing ring. By setting an oil inlet, an oil injection hole, and a housing oil circuit on the motor housing, the stator lamination punching is eliminated, reducing the motor diameter.

Benefits of technology

This reduces the overall diameter of the motor, making it easier to install the motor on the vehicle and maintain the normal operation and temperature stability of the oil-cooled motor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223957380U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of oil-cooled motor cooling stator oil circuit structures, and discloses an oil circuit applied to a non-road mechanical vehicle oil-cooled motor cooling stator, which comprises a motor shell, an oil inlet is arranged on one side of the upper end of the motor shell, and an oil outlet is arranged on the other side of the upper end of the motor shell. Oil collecting and spraying rings are installed on the left side and the right side, close to the lower portion of the oil inlet, of the upper end of the motor shell, sealing rings are installed on one sides of the oil collecting and spraying rings, oil spraying holes are formed in one sides of the oil collecting and spraying rings, a motor stator is installed below the oil collecting and spraying rings, and bolt holes are formed in one side of the outer surface of the motor shell. And an oil path is designed on the motor shell. According to the oil circuit applied to the cooling stator of the oil-cooled motor of the non-road mechanical vehicle, the oil circuit is designed on the motor shell, the thickness of the outer edge of a punched hole can be omitted, the total diameter of the motor is equal to the sum of the minimum magnetic circuit outer diameter of the stator, the height of the oil circuit of the shell and the thickness of the motor shell, the total diameter is small, and the motor can be conveniently arranged on the vehicle.
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Description

TECHNICAL FIELD

[0001] The utility model relates to oil cooling motor cooling stator oil way structure technical field, concretely is an oil way for non -road machinery vehicle oil cooling motor cooling stator. BACKGROUND

[0002] At present, the non -road machinery vehicle in the market is mostly water cooling motor, even if a small amount of oil cooling motor, these in cooling stator oil way is stator lamination punching, punch in the lamination and increase the stator diameter more, total diameter is bigger, it is inconvenient to arrange motor on the vehicle, therefore, the urgent need of an oil way for non -road machinery vehicle oil cooling motor cooling stator to solve the above technical problems. SUMMARY

[0003] The utility model discloses a kind of oil ways for non -road machinery vehicle oil cooling motor cooling stator, to solve the problem proposed in the above background technique.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] An oil way for non -road machinery vehicle oil cooling motor cooling stator, including motor casing, the upper end of the motor casing one side is equipped with oil inlet, and the upper end of motor casing is close to the left and right sides below oil inlet and is equipped with oil collecting and spraying ring, the oil collecting and spraying ring one side is equipped with sealing ring, and the oil collecting and spraying ring one side is equipped with oil injection hole, the oil collecting and spraying ring below is equipped with motor stator, the outer surface of the motor casing one side is equipped with bolt hole, and the motor casing is designed with oil way.

[0006] As a preferred technical scheme of the utility model, the bolt hole is circular in cross section.

[0007] As a preferred technical scheme of the utility model, the oil collecting and spraying ring is made of aluminum alloy or plastic, and a groove is cut in the middle of its outer cylindrical surface, and sealing ring can be installed in the groove.

[0008] As a preferred technical scheme of the utility model, the sealing ring is made of elastic material and has sealing effect.

[0009] As a preferred technical scheme of the utility model, the motor stator is composed of stator core and stator winding.

[0010] As a preferred technical scheme of the utility model, the motor stator is used to generate rotating magnetic field.

[0011] Compared with the prior art, the utility model has the advantages that the utility model is applied to the oil circuit of the oil-cooled motor cooling stator of non-road mechanical vehicle, the oil circuit is designed on the motor shell, the thickness of the punched hole can be saved, the total diameter of the motor is equal to the minimum magnetic circuit outer diameter of the stator plus the oil circuit height of the shell plus the thickness of the motor shell, the total diameter is small, and the motor is conveniently arranged on the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, when read in conjunction with the accompanying drawings:

[0013] Figure 1 It is an overall structure schematic view of the utility model applied to the oil circuit of the oil-cooled motor cooling stator of non-road mechanical vehicle;

[0014] Figure 2 It is the utility model Figure 1 It is an A-A sectional view of the utility model;

[0015] Figure 3 It is a partial structure schematic view of the utility model applied to the oil circuit of the oil-cooled motor cooling stator of non-road mechanical vehicle;

[0016] In the drawing: 1, motor shell; 2, sealing ring; 3, oil injection hole; 4, oil collecting and injecting ring; 5, oil inlet; 6, motor stator; 7, bolt hole; 8, shell oil circuit. DETAILED DESCRIPTION

[0017] The application will be further described in detail below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, and the drawings in the utility model embodiments: different kinds of section lines in the drawing are not marked according to the national standard, and the material of the element is not required, which is to distinguish the sectional view of the element in the drawing.

[0018] Please refer to Figures 1-3 An oil circuit applied to the oil-cooled motor cooling stator of non-road mechanical vehicle, comprising a motor shell 1, an oil inlet 5 is formed in the upper end of the motor shell 1, and an oil collecting and injecting ring 4 is installed on the upper end of the motor shell 1 near the lower left and right sides of the oil inlet 5, a sealing ring 2 is installed on one side of the oil collecting and injecting ring 4, an oil injection hole 3 is formed in one side of the oil collecting and injecting ring 4, a motor stator 6 is installed below the oil collecting and injecting ring 4, a bolt hole 7 is formed in one side of the outer surface of the motor shell 1, and a shell oil circuit 8 is designed on the motor shell 1.

[0019] Among them, the cross section of bolt hole 7 is circular.

[0020] The oil collecting and spraying ring 4 is made of aluminum alloy or plastic, and a groove is cut in the middle of the outer surface of the oil collecting and spraying ring 4, and a sealing ring can be installed in the groove.

[0021] The sealing ring 2 is made of elastic material and has a sealing function.

[0022] The motor stator 6 is composed of a stator core and a stator winding.

[0023] The motor stator 6 is used for generating a rotating magnetic field.

[0024] The working principle and use process of the utility model are as follows: when three-phase alternating current passes through the motor stator 6, a rotating magnetic field is generated, and the rotating magnetic field can generate an induced current in the conductor on the rotor. According to Faraday's law of electromagnetic induction, the induced current in the rotor conductor can generate a magnetic field opposite to the direction of the rotating magnetic field, and the reverse magnetic field and the rotating magnetic field interact with each other, so that the rotor rotates along the direction of the rotating magnetic field of the stator.

[0025] At the same time, the lubricating oil in the cooling stator of the oil-cooled motor enters from the oil inlet 5, passes through the oil spraying hole 3 and the oil collecting and spraying ring 4 in sequence, is responsible for carrying away the heat generated in the operation process of the oil-cooled motor, and keeps the temperature of the oil-cooled motor stable, so as to ensure the normal operation of the oil-cooled motor.

[0026] At the same time, the oil passage 8 is designed on the motor shell 1, the thickness of the punched hole on the stator core can be saved, the total diameter of the motor = the minimum magnetic path outer diameter of the stator + the oil passage height of the motor shell + the thickness of the motor shell 1, the total diameter is small, the motor is arranged on the vehicle conveniently, and the technical problem that the oil passage of the cooling stator is punched on the stator sheet and the diameter of the stator is increased is solved.

[0027] The contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0028] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the utility model range involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by the combination of the above technical features or equivalent features without departing from the utility model concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the application (but not limited to) having similar functions.

Claims

1. An oil circuit for cooling the stator of an oil-cooled electric machine applied to a non-road mechanical vehicle comprising an electric machine housing (1), characterized in that: The upper end of the motor shell (1) is provided with an oil inlet (5), and the upper end of the motor shell (1) is provided with an oil collecting and spraying ring (4) on the left and right sides below the oil inlet (5), one side of the oil collecting and spraying ring (4) is provided with a sealing ring (2), and the oil collecting and spraying ring (4) is provided with an oil spraying hole (3) on one side, and the lower side of the oil collecting and spraying ring (4) is provided with a motor stator (6), and the outer surface of the motor shell (1) is provided with a bolt hole (7), and the motor shell (1) is provided with a motor shell oil way (8).

2. An oil circuit for cooling the stator of an oil-cooled electric machine applied to a non-road mechanical vehicle according to claim 1, characterized in that: The cross section of the bolt hole (7) is circular.

3. An oil circuit for cooling the stator of an oil-cooled electric machine applied to a non-road mechanical vehicle according to claim 1, characterized in that: The oil collecting and spraying ring (4) is made of aluminum alloy or plastic, and a groove is cut in the middle of the outer circular surface, and the groove can be equipped with a sealing ring.

4. An oil passage applied to an oil-cooled motor cooling stator of a non-road machine vehicle oil according to claim 1, characterized in that: The sealing ring (2) is made of elastic material and has a sealing effect.

5. An oil passage applied to an oil-cooled motor cooling stator of a non-road machine vehicle oil according to claim 1, characterized in that: The motor stator (6) is composed of a stator core and a stator winding.

6. An oil passage applied to an oil-cooled motor-cooled stator of a non-road machine vehicle oil according to claim 1, characterized in that: The motor stator (6) is used for generating a rotating magnetic field.