CN213072295U - Stator housing and in-wheel motor - Google Patents

Stator housing and in-wheel motor Download PDF

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Publication number
CN213072295U
CN213072295U CN202022333559.XU CN202022333559U CN213072295U CN 213072295 U CN213072295 U CN 213072295U CN 202022333559 U CN202022333559 U CN 202022333559U CN 213072295 U CN213072295 U CN 213072295U
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China
Prior art keywords
stator
motor
housing
sub
wheel motor
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CN202022333559.XU
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Chinese (zh)
Inventor
赵泽鹏
康凯
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Beijing Cuifeng Capital Investment Co Ltd
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Beijing Cuifeng Capital Investment Co Ltd
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Priority to CN202022333559.XU priority Critical patent/CN213072295U/en
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Abstract

The utility model relates to a motor manufacturing technology field particularly, relates to a stator housing and in-wheel motor. A stator housing comprising a first section and a second section connected to the first section; the first sub-part is used for being connected with the stator core and the stator winding, and the second sub-part is used for being connected with the motor spindle; the first sub-portion is provided with a mounting groove, and the mounting groove is used for mounting the stator core and the stator winding. This stator housing can improve motor stator's radiating efficiency, and then can avoid motor stator's high temperature.

Description

Stator housing and in-wheel motor
Technical Field
The utility model relates to a motor manufacturing technology field particularly, relates to a stator housing and in-wheel motor.
Background
In the operation process of the hub motor, the motor stator can generate a large amount of heat, and if the heat cannot be timely discharged, the temperature of the motor stator can be rapidly increased, and even insulation failure can be caused. In order to reduce the complexity and the cost of the in-wheel motor, the in-wheel motor can be cooled in an air cooling mode, but because the in-wheel motor mostly adopts an outer rotor mode, a motor stator is arranged inside, and heat is difficult to radiate outside the in-wheel motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stator housing and in-wheel motor, it can improve motor stator's radiating efficiency, and then can avoid motor stator's high temperature.
The embodiment of the utility model is realized like this:
in a first aspect, an embodiment of the present invention provides a stator housing, which includes a first sub-portion and a second sub-portion connected to the first sub-portion;
the first sub-part is used for being connected with the stator core and the stator winding, and the second sub-part is used for being connected with the motor spindle; the first sub-portion is provided with a mounting groove, and the mounting groove is used for mounting the stator core and the stator winding.
In an alternative embodiment, the bottom of the mounting groove is provided with a heat conducting layer.
In an alternative embodiment, the bottom of the mounting groove is provided with a heat conducting groove, and the heat conducting layer is mounted in the heat conducting groove.
In an alternative embodiment, the first sub-portion is provided with a protrusion protruding to the outside, and the inside of the protrusion forms the mounting groove.
In an alternative embodiment, the first section is made in one piece with the second section.
In a second aspect, an embodiment of the present invention provides an in-wheel motor, which includes a rotor housing, a stator core, a stator winding, a motor spindle, and the above-mentioned stator housing;
the stator shell is connected with the motor spindle, the second sub-part is connected with the motor spindle, the first sub-part is connected with the rotor shell, and the stator shell and the rotor shell jointly form an accommodating cavity;
stator core and stator winding all are located and hold the intracavity, and stator core and stator winding all are connected with first subsection.
In an alternative embodiment, the rotor housing has a shape adapted to the inside of the hub.
In an alternative embodiment, a sliding seal arrangement is provided at the junction of the first section and the rotor housing.
In an alternative embodiment, the sliding seal structure comprises a first seal portion arranged along the radial direction of the motor main shaft and a second seal portion arranged along the axial direction of the motor main shaft;
the first sealing part is a labyrinth groove seal, and the second sealing part is a packing seal.
The utility model discloses beneficial effect includes:
this stator housing can increase heat absorption area through the setting of mounting groove to be connected with first subsection through the second subsection and increase heat radiating area, and then under the condition that endothermic efficiency and radiating efficiency obtain improving simultaneously, can improve motor stator's radiating efficiency, and then can avoid motor stator's high temperature.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is the embodiment of the present invention provides a schematic structural diagram of a hub motor.
Fig. 2 is a schematic structural diagram of a stator housing according to an embodiment of the present invention.
100-stator housing; 110-a first subsection; 120-a second subsection; 111-mounting grooves; 112-a thermally conductive layer; 113-a heat conducting groove; 114-a boss; 200-a hub motor; 210-a rotor housing; 220-a stator core; 230-a motor spindle; 201-a containment chamber; 240-sliding sealing structure; 241-a first seal; 242 — a second seal.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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 the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.
Among the prior art, in the in-wheel motor operation process, motor stator can produce a large amount of heats, if can not in time discharge the heat, then can lead to motor stator temperature to rise rapidly, leads to insulating inefficacy even. In order to reduce the complexity and the cost of the in-wheel motor, the in-wheel motor can be cooled in an air cooling mode, but because the in-wheel motor mostly adopts an outer rotor mode, a motor stator is arranged inside, and heat is difficult to radiate outside the in-wheel motor.
To solve the above problem, please refer to fig. 1 and 2, fig. 1 shows an assembly diagram of the stator housing assembled to the hub motor in the embodiment of the present invention, and fig. 2 shows a structure of the stator housing in the embodiment of the present invention; the present embodiment provides a stator housing 100, the stator housing 100 is applied to a hub motor 200, the stator housing 100 includes a first subsection 110 and a second subsection 120 connected to the first subsection 110; first subsection 110 is used to connect to stator core 220 and stator windings, and second subsection 120 is used to connect to motor spindle 230.
Further, referring to fig. 2, when the stator housing 100 is installed, the first sub-unit 110 is provided with an installation groove 111 for installing the stator core 220 and the stator winding in order to facilitate installation of the stator core 220 and the stator winding. In addition, by such an installation manner, the stator housing structure located at the outer periphery of the stator core 220 and the stator winding can be increased by the structural installation of the installation groove 111, and thus the heat absorption area for absorbing heat generated by the operation of the stator core 220 and the stator winding can be increased.
The working principle of the stator housing 100 is as follows:
in the stator casing 100, the first section 110 is provided with the mounting groove 111 for mounting the stator core 220 and the stator winding, so that the stator casing structure positioned at the periphery of the stator core 220 and the stator winding can be increased, and the heat absorption area for absorbing heat generated by the operation of the stator core 220 and the stator winding can be increased; meanwhile, the second sub-portion 120 is connected to the first sub-portion 110, and the second sub-portion 120 is used for being connected to the motor spindle 230, so that the stator housing 100 can be adapted to the end profile of the in-wheel motor 200, and the shell structure of the in-wheel motor 200 can be optimized, so that the profile area of the stator housing 100 is increased, and the heat dissipation area can be increased.
Therefore, the stator housing 100 can increase the heat absorption area by the installation of the installation groove 111, and increase the heat dissipation area by the connection of the second part 120 and the first part 110, so that the heat dissipation efficiency of the motor stator can be improved under the condition that the heat absorption efficiency and the heat dissipation efficiency are improved at the same time, and the over-high temperature of the motor stator can be avoided.
In order to further increase the efficiency of absorbing the heat generated by the operation of the stator core 220 and the stator windings, the bottom of the mounting groove 111 is provided with a heat conducting layer 112, and the heat conducting layer 112 is used for guiding the heat generated by the operation of the stator core 220 and the stator windings to be transferred to the stator housing 100, so as to improve the heat dissipation efficiency. The bottom of the mounting groove 111 is provided with a heat conduction groove 113, and the heat conduction layer 112 is mounted in the heat conduction groove 113.
Further, referring to fig. 2, in the present embodiment, in order to reduce the difficulty of installation when installing the installation groove 111, the first branch portion 110 is provided with a protruding portion 114 protruding outward, and the installation groove 111 is formed inside the protruding portion 114. Note that, in the present embodiment, the inside of the stator housing 100 refers to a side of the stator housing 100 facing the inside of the in-wheel motor 200, and the outside of the stator housing 100 refers to a side of the stator housing 100 facing the outside of the in-wheel motor 200.
In the present embodiment, in order to reduce the manufacturing cost when the stator housing is provided, the first section 110 and the second section 120 are integrally formed, and the mounting groove 111 and other structures can be formed by integrally forming.
Referring to fig. 1 and 2, based on the stator housing 100, an embodiment of the present invention provides an in-wheel motor 200, where the in-wheel motor 200 includes a rotor housing 210, a stator core 220, a stator winding, a motor spindle 230, and the stator housing 100.
In this in-wheel motor 200, stator housing 100 is connected to motor spindle 230, second section 120 is connected to motor spindle 230, first section 110 is connected to rotor housing 210, and stator housing 100 and rotor housing 210 together form accommodating chamber 201; stator core 220 and stator winding are located and hold chamber 201, and stator core 220 and stator winding all are connected with first subsection 110.
Because the in-wheel motor 200 adopts the stator housing 100, compared with the mode of connecting the stator housing 100 with the motor housing in the prior art, the in-wheel motor 200 can timely dissipate heat generated by the working of the stator core 220 and the stator winding to the outside through the stator housing 100 in the working process of the stator core 220 and the stator winding, thereby avoiding overhigh working temperature of the stator core 220 and the stator winding.
Further, in the present embodiment, in order to reduce the difficulty in mounting the in-wheel motor 200 when the in-wheel motor 200 is mounted, the rotor case 210 has a shape corresponding to the inside of the wheel hub.
In the present embodiment, in order to improve the sealing performance of the connection between the stator housing 100 and the rotor housing 210, and thus the sealing performance of the in-wheel motor 200, a sliding sealing structure 240 is provided at the connection between the first sub-unit 110 and the rotor housing 210. Specifically, the sliding seal structure 240 includes a first seal portion 241 disposed along the radial direction of the motor spindle 230 and a second seal portion 242 disposed along the axial direction of the motor spindle 230; the first sealing portion 241 is a labyrinth groove seal, and the second sealing portion 242 is a packing seal.
The above description is only an example of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A stator housing, characterized by:
the stator housing includes a first subsection and a second subsection connected to the first subsection;
the first sub-part is used for being connected with the stator core and the stator winding, and the second sub-part is used for being connected with the motor spindle; the first sub-portion is provided with a mounting groove, and the mounting groove is used for mounting the stator core and the stator winding.
2. The stator housing of claim 1, wherein:
the bottom of mounting groove is provided with the heat-conducting layer.
3. The stator housing of claim 2, wherein:
the bottom of mounting groove is provided with the heat conduction groove, the heat-conducting layer install in the heat conduction inslot.
4. The stator housing of claim 1, wherein:
the first sub-portion is provided with a protruding portion protruding towards the outside, and the mounting groove is formed on the inner side of the protruding portion.
5. The stator housing of any one of claims 1-4, wherein:
the first section is integrally formed with the second section.
6. An in-wheel motor characterized by:
the hub motor comprises a rotor shell, a stator core, a stator winding, a motor spindle and the stator shell as claimed in any one of claims 1-5;
the stator shell is connected with the motor spindle, the second branch is connected with the motor spindle, the first branch is connected with the rotor shell, and the stator shell and the rotor shell form an accommodating cavity together;
the stator core reaches the stator winding all is located hold the intracavity, just the stator core reaches the stator winding all with first subdivision is connected.
7. The in-wheel motor of claim 6, wherein:
the rotor housing has a shape adapted to an inner side of the hub.
8. The in-wheel motor of claim 6, wherein:
and a sliding sealing structure is arranged at the joint of the first branch and the rotor shell.
9. The in-wheel motor of claim 8, wherein:
the sliding sealing structure comprises a first sealing part arranged along the radial direction of the motor spindle and a second sealing part arranged along the axial direction of the motor spindle;
the first sealing part is a labyrinth groove seal, and the second sealing part is a packing seal.
CN202022333559.XU 2020-10-19 2020-10-19 Stator housing and in-wheel motor Active CN213072295U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022333559.XU CN213072295U (en) 2020-10-19 2020-10-19 Stator housing and in-wheel motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022333559.XU CN213072295U (en) 2020-10-19 2020-10-19 Stator housing and in-wheel motor

Publications (1)

Publication Number Publication Date
CN213072295U true CN213072295U (en) 2021-04-27

Family

ID=75561894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022333559.XU Active CN213072295U (en) 2020-10-19 2020-10-19 Stator housing and in-wheel motor

Country Status (1)

Country Link
CN (1) CN213072295U (en)

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