CN217789412U

CN217789412U - Cooling system for stator assembly of high-speed oil-cooled motor

Info

Publication number: CN217789412U
Application number: CN202221419803.7U
Authority: CN
Inventors: 于拓舟; 赵慧超; 王斯博; 文彦东; 张颖; 黄智昊; 唐佩伦; 郭璐璐; 胡晶; 刘静东
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-11
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses a high-speed oil cooling motor stator assembly cooling system belongs to electrical equipment technical field, including setting up the stator assembly at casing inner wall, stator assembly middle part is equipped with the rotor assembly, rotor assembly and stator assembly seal the setting in the casing through the end cover at both ends through symmetrical arrangement, casing inner wall is equipped with the interlayer structure, the oil inlet with the interlayer intercommunication has been arranged to the casing outer wall, the inner wall that the casing is close to the stator assembly is fixed with drenches the oil groove, drench oil groove and interlayer intercommunication, it evenly is equipped with a plurality of oilholes that drench on the inner wall that the oil groove is close to the stator assembly, the inner wall that the casing inner wall is close to the stator assembly is equipped with the oil-out that passes the interlayer and communicate with the outside. The utility model discloses a high-speed oil cooling motor stator assembly cooling system, the oil circuit that casing and stator surface formed and the oily structure of drenching of tip winding top can be to the stator intensive cooling, can cool off tip winding again simultaneously, simple structure is compact, simple to operate.

Description

Cooling system for stator assembly of high-speed oil-cooled motor

Technical Field

The utility model discloses a high-speed oil cooling motor stator assembly cooling system belongs to electrical equipment technical field.

Background

As the power density of the vehicle motor is higher and higher, the heat generated inside the motor is also higher and the size of the motor is smaller and smaller, which is particularly important for cooling the motor. Oil cooling is a new high-efficiency cooling mode and becomes the key point of research of various large vehicles and enterprises. The heat dissipation of the motor directly affects the output capability of the motor. At present, an oil injection ring is mainly used for cooling an end winding for cooling a motor, so that the cooling effect is good, but the structure is complex, and the processing is not facilitated; for the cooling of the stator, an axial simple slotting mode is mostly adopted, but the cooling effect is not good.

At present, a simple axial slotting and externally-added oil injection ring structure of a stator is adopted for cooling a motor, and although the method can ensure cooling of an end winding, the method has larger pumping work and is complex to install. Furthermore, simple axial slotting of the stator does not guarantee sufficient cooling of the stator.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the cooling method of current motor and have great pump power, the installation is complicated and can not guarantee to the abundant refrigerated problem of stator, provide a four-wheel positioning adjustment instrument with low costs, the commonality is strong.

The utility model discloses the problem that will solve is realized by following technical scheme:

the utility model provides a high-speed oil cooling motor stator assembly cooling system, is including setting up the stator assembly at casing inner wall, the stator assembly middle part is equipped with the rotor assembly, rotor assembly and stator assembly seal the setting in the casing through the end cover of symmetrical arrangement at both ends, casing inner wall is provided with the cooling assembly.

Preferably, the cooling assembly includes the interlayer structure that the casing inner wall was equipped with, the oil inlet with the interlayer intercommunication is arranged to the casing outer wall, the inner wall that the casing is close to stator assembly is fixed with drenches the oil groove, drench oil groove and interlayer intercommunication, drench evenly to be equipped with a plurality of oil holes of drenching on the oil groove is close to stator assembly's the inner wall, the inner wall that the casing inner wall is close to stator assembly is equipped with the oil-out that passes the interlayer and communicate with the outside.

Preferably, the oil outlets respectively comprise first oil outlets.

Preferably, the rotor assembly comprises a rotating shaft, two ends of the rotating shaft are rotatably arranged on the end covers, and a rotor is arranged on the rotating shaft.

Preferably, permanent magnets are uniformly embedded in the rotor.

Preferably, the stator assembly includes a stator disposed on an inner wall of the casing,

preferably, the stator is uniformly provided with end windings.

Preferably, the oil outlets each further comprise a second oil outlet.

The utility model discloses for the beneficial effect that has now:

the utility model discloses a high-speed oil cooling motor stator assembly cooling system, the oil circuit that casing and stator surface formed drenches oily structure with what the end winding top, can fully cool off the stator, can cool off the end winding again simultaneously, it compares with current scheme to drench oily structure, moreover, the steam generator is simple in structure, and easy to assemble, the oil level that drenches is put adjustably, thereby can be to the casing, the stator fully cools off, and the tip drenches oily simple structure, easily installation, can guarantee the cooling to the tip simultaneously again, compare with traditional oil spraying ring structure, the pump work that consumes is less, whole mechanism is scientific simple more, accord with present design requirement.

Drawings

Fig. 1 is a schematic view of a motor cooling circuit according to the present invention.

Fig. 2 is a partial isometric view of the present invention.

Fig. 3 is an isometric view of the cooling oil circuit of the present invention.

Fig. 4 is a partial isometric view of the present invention.

Fig. 5 is an isometric view of the drip tank of the present invention.

Wherein:

10. an oil inlet;

20. a first oil outlet;

21. a second oil outlet;

30. a housing;

40. a stator;

50. an end winding;

60. a permanent magnet;

70. a rotor;

80. a rotating shaft;

90. an oil sprinkling groove;

91. an oil spraying hole;

100. and (4) end covers.

Detailed Description

The invention will be further explained below with reference to the accompanying figures 1 to 5:

the technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the first embodiment of the present invention provides a cooling system for a stator assembly of a high-speed oil-cooled motor based on the prior art, which comprises a stator assembly installed on the inner wall of a housing 30, a rotor assembly is installed in the middle of the stator assembly, and the rotor assembly and the stator assembly are installed inside the housing 10 by sealing end covers 100 symmetrically arranged at two ends.

First, a stator assembly and a rotor assembly will be described, wherein the rotor assembly includes a rotating shaft 80 rotatably mounted on an end cap 100 at both ends, a rotor 70 is mounted on the rotating shaft 80, permanent magnets 60 are uniformly embedded in the rotor 70, the stator assembly includes a stator 40 mounted on the inner wall of a casing 30, and an end winding 50 is uniformly mounted on the stator 40.

As shown in fig. 2-5, the housing 30 is provided with a cooling assembly, the cooling assembly includes a partition structure provided on an inner wall of the housing 30, an oil inlet 10 communicated with the partition is arranged on an outer wall of the housing 30, an oil dripping tank 90 is fixed on an inner wall of the housing 30 close to the stator assembly, the oil dripping tank 90 is communicated with the partition, a plurality of oil dripping holes 91 are uniformly provided on an inner wall of the oil dripping tank 90 close to the stator assembly, an oil outlet penetrating through the partition and communicated with the outside is provided on an inner wall of the housing 30 close to the stator assembly, and the oil outlet includes a first oil outlet 20 and a second oil outlet 21.

After entering from the oil inlet 10, the cooling oil flows along the cooling oil path. The cooling oil path is communicated with the oil dripping groove 90, and the cooling oil flows into the oil dripping groove and flows out of the oil dripping hole 91, and then flows out of the first oil outlet 20 and the second oil outlet 21 at the bottom of the machine shell.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims

1. The cooling system for the stator assembly of the high-speed oil-cooled motor is characterized by comprising a stator assembly arranged on the inner wall of a machine shell (30), wherein a rotor assembly is arranged in the middle of the stator assembly, the rotor assembly and the stator assembly are arranged in the machine shell (30) in a sealing mode through end covers (100) which are symmetrically arranged at two ends, and the cooling assembly is arranged on the inner wall of the machine shell (30).

2. The cooling system of the stator assembly of the high-speed oil-cooled motor according to claim 1, wherein the cooling assembly comprises an interlayer structure arranged on the inner wall of the housing (30), an oil inlet (10) communicated with the interlayer is arranged on the outer wall of the housing (30), an oil sprinkling groove (90) is fixed on the inner wall of the housing (30) close to the stator assembly, the oil sprinkling groove (90) is communicated with the interlayer, a plurality of oil sprinkling holes (91) are uniformly arranged on the inner wall of the oil sprinkling groove (90) close to the stator assembly, and an oil outlet which penetrates through the interlayer and is communicated with the outside is arranged on the inner wall of the housing (30) close to the stator assembly.

3. A high speed oil cooled motor stator assembly cooling system according to claim 2, characterized in that said oil outlets each comprise a first oil outlet (20).

4. The cooling system of the stator assembly of the high-speed oil-cooled motor according to claim 3, wherein the rotor assembly comprises a rotating shaft (80) with two ends rotatably arranged on the end cover (100), and the rotating shaft (80) is provided with a rotor (70).

5. The cooling system for the stator assembly of the high-speed oil-cooled motor according to claim 4, wherein the permanent magnets (60) are uniformly embedded in the rotor (70).

6. The cooling system for the stator assembly of the high-speed oil-cooled motor according to claim 5, wherein the stator assembly comprises a stator (40) disposed on an inner wall of the housing (30).

7. The cooling system for the stator assembly of the high-speed oil-cooled motor according to claim 6, wherein the stator (40) is uniformly provided with the end windings (50).

8. The cooling system for the stator assembly of the high-speed oil-cooled motor according to claim 7, wherein the oil outlets each further comprise a second oil outlet (21).