CN213846344U - Motor stator - Google Patents

Abstract

The utility model discloses a motor stator, which comprises a stator core, wherein a plurality of radially extending through holes are arranged on the stator core, and the adjacent through holes are arranged at equal intervals; the conductive coil is wound on the stator core; a cavity is formed between the stator core and the conductive coil and is communicated with the through hole; the flexible filling part is filled in the cavity, and the flexible filling part is arranged, so that the shape of the flexible filling part can be changed according to the temperature, the air amount in the cavity is controlled, and the heat conduction performance is changed. When the stator core has too large heat, the flexible filling part expands in volume, the heat dissipation capacity is enhanced, and the heat dissipation performance of the motor is good.

Description

Motor stator

Technical Field

The utility model belongs to the technical field of the motor, especially, relate to a motor stator.

Background

Generally, the motor stator includes a plurality of stator coils each of which is constituted by a conductive coil wound around a stator core. The resin insulator is disposed between the stator core and the conductive coil to ensure insulation therebetween. That is, the conductive coils are inserted into the electronic core through the resin insulator, and they are completely covered with a molding material through a molding process to form the stator.

Generally, the pitch between the stator core and the stator coil is set small to improve insulation. However, the molding material has too high a surface tension to sufficiently enter the gap. Thereby, an air layer is left between the insulator and the conductive coil, and the air is a poor conductor of heat, resulting in a decrease in the heat dissipation performance of the motor.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a motor stator with high heat dissipation capability.

To achieve the above object, the present invention provides a motor stator, including: the stator core is provided with a plurality of radially extending through holes, and the adjacent through holes are arranged at equal intervals; the conductive coil is wound on the stator core; a cavity is formed between the stator core and the conductive coil and is communicated with the through hole; and the flexible filling part is filled in the cavity.

In one example, the flexible filler portion includes a mounting portion and a flexible portion, the mounting portion being mounted within the cavity; the flexible portion is disposed on one side of the mounting portion.

In one example, the motor stator includes a controller and a temperature detector, the controller being electrically connected to the flexure and the temperature detector, respectively.

In one example, the motor further comprises a base connected to the bottom of the stator core.

In one example, the stator core further comprises a cover shell, and the cover shell is arranged at one end of the stator core.

Through the utility model provides a motor stator can bring following beneficial effect:

1. by arranging the flexible filling part, the flexible filling part can change the shape of the flexible filling part according to the temperature, so that the amount of air in the cavity is controlled to change the heat-conducting property. When the stator core has too large heat, the flexible filling part expands in volume, the heat dissipation capacity is enhanced, and the heat dissipation performance of the motor is good.

2. Through setting up controller and temperature detector, can be according to the temperature that detects stator core, the controller can control flexible portion and take place the degree of deformation, has further improved the heat dissipation accuracy nature, and the practicality is strong.

3. Through setting up the frame, stator core is difficult for taking place to rock at the in-process of operation, and job stabilization is reliable.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of an angle of a motor stator according to the present invention;

fig. 2 is a schematic view of another angle of the motor stator according to the present invention;

fig. 3 is a schematic structural view of the flexible filling portion of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus 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 stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; 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 application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 3, an embodiment of the present invention provides a motor stator including. The stator comprises a stator core 1, wherein a plurality of radially extending through holes 11 are formed in the stator core 1, and the adjacent through holes 11 are arranged at equal intervals; the conductive coil 2 is wound on the stator core 1; a cavity is formed between the stator core 1 and the conductive coil 2 and is communicated with the through hole 11; and a flexible filling part 3, wherein the flexible filling part 3 is filled in the cavity. By providing the flexible filling portion 3, the flexible filling portion 3 can change its volume according to the temperature, thereby controlling the amount of air in the cavity to change the heat conduction performance. When the heat of the stator core 1 is too large, the flexible filling part 3 expands in volume, the heat dissipation capability is enhanced, and the heat dissipation performance of the motor is good. Among them, the flexible filling portion 3 is a material having a high thermal conductivity. Can lead out heat of the stator core 1

Specifically, the flexible filling part 3 includes a mounting part 31 and a flexible part 32, the mounting part 31 being mounted in the cavity; the flexible portion 32 is provided on the mounting portion side. The flexible portion 32 can be fixed in the cavity through the mounting portion 31, and the flexible portion 32 is stable and reliable in operation and high in practicability.

In one embodiment, the mounting portion 31 and the stator core 1 can be fixed by riveting, screwing, or clipping.

Specifically, the motor stator includes a controller 41 and a temperature detector 42, and the controller 41 is electrically connected to the flexible portion 32 and the temperature detector 42, respectively. Through setting up controller 41 and temperature detector 42, can be according to the temperature that detects stator core 1, controller 41 can control the degree that flexible portion 32 takes place the deformation, has further improved the heat dissipation accuracy nature, and the practicality is strong.

Specifically, the stator core structure further comprises a base 5, and the base 5 is connected to the bottom of the stator core 1. Through setting up frame 5, stator core 1 is difficult for taking place to rock at the in-process of operation, and job stabilization is reliable.

Specifically, the stator core further comprises a cover 6, and the cover 6 is covered on one end of the stator core 1. When the stator works, the housing 6 can prevent dust and foreign matters from entering the stator, and the working stability of the stator is further improved

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to 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 scope of the claims of the present invention.

Claims (5)

1. An electric motor stator, characterized by comprising:

the stator core is provided with a plurality of radially extending through holes, and the adjacent through holes are arranged at equal intervals;

the conductive coil is wound on the stator core; a cavity is formed between the stator core and the conductive coil and is communicated with the through hole;

and the flexible filling part is filled in the cavity.

2. The motor stator according to claim 1, wherein the flexible filling portion includes a mounting portion and a flexible portion, the mounting portion being mounted in the cavity; the flexible portion is disposed on one side of the mounting portion.

3. An electric motor stator according to claim 2, wherein said electric motor stator comprises a controller and a temperature detector, said controller being electrically connected to said flexure and said temperature detector, respectively.

4. The motor stator of claim 2, further comprising a frame attached to the bottom of said stator core.

5. The motor stator according to claim 1, further comprising a cover case provided at one end of the stator core.

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