CN210985872U

CN210985872U - Iron core and motor formed by same

Info

Publication number: CN210985872U
Application number: CN201922352637.8U
Authority: CN
Inventors: 邓程亮; 陆细彪; 于孙权
Original assignee: Mc Motor Technology (shenzhen) Co ltd
Current assignee: Mc Motor Technology (shenzhen) Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-10
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses an iron core and a motor composed of the same, wherein the iron core comprises an iron core body; the iron core body is provided with an oil groove along the circumferential direction, the oil groove surrounds the circumferential surface of the iron core body, the iron core body is provided with a plurality of oil through holes at intervals around the center of the iron core body, and the oil through holes penetrate through the axial length of the iron core body and are communicated with the oil groove; the cooling oil flows into the oil through hole after entering the oil groove so as to dissipate heat of the iron core body. The utility model discloses a set up the oil groove in iron core body circumference direction, be equipped with the interval at the axial direction and be equipped with the oil through hole for during the cooling oil flows in the oil through hole after getting into the oil groove, thereby realized fully radiating iron core body, the cooling effect is good, and need not to set up extra spare part and assist the heat dissipation, the cost is reduced.

Description

Iron core and motor formed by same

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a motor that iron core and constitute by it that says so.

Background

When the motor runs, a large amount of heat can be generated by a motor main body (components such as an iron core), and the service performance, the service life and the like of the motor are greatly influenced due to overhigh temperature.

In the prior art, a cooling pipe is usually adopted to dissipate heat of an iron core, and a coolant is added into the cooling pipe, so that the heat of the iron core is taken away. However, since the core needs to be embedded with the cooling pipe, the core has a complicated structure and high production cost, and the installation requirement of the cooling pipe is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an iron core and by its motor that constitutes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an iron core includes an iron core body; the iron core body is provided with an oil groove along the circumferential direction, the oil groove surrounds the circumferential surface of the iron core body, the iron core body is provided with a plurality of oil through holes at intervals around the center of the iron core body, and the oil through holes penetrate through the axial length of the iron core body and are communicated with the oil groove; the cooling oil flows into the oil through hole after entering the oil groove so as to dissipate heat of the iron core body.

The further technical scheme is as follows: the oil groove is located in the center of the axial direction of the iron core body.

The further technical scheme is as follows: the oil through hole is circular, long circular or polygonal.

The further technical scheme is as follows: the oil through hole is close to the peripheral edge of the iron core body.

The further technical scheme is as follows: the iron core body is provided with an axial groove used for cooling oil to flow along the axial direction of the iron core body, and the axial groove is located on the outer side of the oil through hole.

The further technical scheme is as follows: the bottom of the axial groove is in a circular arc shape.

The further technical scheme is as follows: stator slots for winding the wire groups are formed in the iron core body; the stator slot is located on the inner side of the oil through hole.

An electric machine comprising a housing; the iron core is arranged in the shell; the shell is provided with an oil inlet, and the oil inlet is located above the oil groove of the iron core.

Compared with the prior art, the utility model beneficial effect be: the utility model provides a pair of iron core through setting up the oil groove at iron core body circumference direction, is equipped with the interval in the axial direction and is equipped with the oil through hole for during the cooling oil gets into and flows in the oil through hole behind the oil groove, thereby realized fully to the heat dissipation of iron core body, the cooling effect is good, and need not to set up extra spare part and assist the heat dissipation, the cost is reduced.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is a perspective view of an embodiment of an iron core according to the present invention;

fig. 2 is a perspective view of a housing in an embodiment of the motor of the present invention;

fig. 3 is an assembly diagram of the iron core and the casing in the embodiment of the motor of the present invention.

Reference numerals

1. An iron core body; 11. an oil sump; 12. an oil through hole; 13. an axial groove; 14. a stator slot; 2. a housing; 21. and an oil inlet.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.

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 those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" 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 to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Example one

The utility model provides an iron core, which is applied to a motor, and please refer to fig. 1, the iron core comprises an iron core body 1; the iron core body 1 is provided with an oil groove 11 along the circumferential direction, the oil groove 11 surrounds the circumferential surface of the iron core body 1, the iron core body 1 is provided with a plurality of oil through holes 12 at intervals around the center thereof, and the oil through holes 12 penetrate through the axial length of the iron core body 1 and are communicated with the oil groove 11; the cooling oil enters the oil groove 11 and then flows into the oil passage hole 12 to dissipate heat of the core body 1. Through setting up oil groove 11 in 1 circumference direction of iron core body, be equipped with the interval at axial direction and be equipped with oil through hole 12 for cooling oil flows into in oil through hole 12 after getting into oil groove 11, thereby has realized fully dispelling the heat to iron core body 1, and the cooling effect is good, and need not to set up extra spare part and assist the heat dissipation, the cost is reduced. In addition, because the oil through hole 12 is arranged in the iron core body 1 and penetrates through the axial length of the iron core body 1, the flowing area of the cooling oil is increased, and the heat dissipation is facilitated.

Preferably, the oil groove 11 is located at the center of the axial direction of the core body 1, so that the oil through holes 12 on both sides of the oil groove 11 have the same length, thereby facilitating the uniform heat dissipation of the core body 1 after the cooling oil enters the oil through holes 12. The oil through holes 12 are evenly spaced apart from the peripheral edge of the core body 1, and in this embodiment, the oil through holes 12 are circular.

In some embodiments, such as the present embodiment, the core body 1 is provided with an axial groove 13 for the flow of the cooling oil in the axial direction thereof, and the axial groove 13 is located outside the oil passage hole 12. The axial grooves 13 can further improve the heat dissipation efficiency. Preferably, the bottom of the axial groove 13 is in a circular arc shape, and the circular shape is arranged to facilitate the flow of cooling oil.

Further, a stator slot 14 for winding the winding group is arranged in the iron core body 1; the stator slots 14 are located inside the oil through holes 12.

In other embodiments, the oil through hole 12 is oblong, polygonal, or other shape.

Example two

The utility model also provides a motor, please refer to fig. 2 and 3, which comprises a casing; the iron core of the first embodiment is arranged in the shell; the shell is provided with an oil inlet which is positioned above the oil groove of the iron core. Because the motor comprises the iron core of the first embodiment, the motor still has the beneficial effects of the iron core of the first embodiment, so that the manufacturing cost of the motor is reduced, and the service life of the motor is prolonged.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. An iron core, comprising an iron core body; the iron core body is provided with an oil groove along the circumferential direction, the oil groove surrounds the circumferential surface of the iron core body, the iron core body is provided with a plurality of oil through holes at intervals around the center of the iron core body, and the oil through holes penetrate through the axial length of the iron core body and are communicated with the oil groove; the cooling oil flows into the oil through hole after entering the oil groove so as to dissipate heat of the iron core body.

2. The core according to claim 1, wherein the oil groove is located at a center of the core body in an axial direction.

3. The iron core according to claim 1, wherein the oil through hole is circular, oblong or polygonal.

4. The iron core according to claim 1, wherein the oil passing hole is close to an outer peripheral edge of the iron core body.

5. The iron core according to claim 4, wherein the iron core body is provided with an axial groove for flow of cooling oil in an axial direction thereof, the axial groove being located outside the oil passing hole.

6. A core as claimed in claim 5, characterized in that the axial groove bottom is in the shape of a circular arc.

7. The core as claimed in claim 1, wherein the core body has stator slots for winding groups; the stator slot is located on the inner side of the oil through hole.

8. An electric machine comprising a housing; the iron core as claimed in any one of claims 1 to 7 is arranged in the casing; the shell is provided with an oil inlet, and the oil inlet is located above the oil groove of the iron core.