Iron core positioning structure

Abstract

The utility model discloses an iron core positioning structure, comprising an iron core pedestal which is arranged on a fan outer frame and is provided with a spacing groove for placing a stator iron core; and the plurality of limiting blocks are uniformly arranged in the circumferential direction of the limiting groove and correspond to a plurality of notches in the stator core, and the limiting blocks partially extend into the limiting groove. According to the iron core positioning structure, the fixing strength of the iron core and the fan outer frame can be improved, the iron core is prevented from vibrating and loosening, and the performance of a fan is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of axial flow fan, especially relates to a core positioning structure. BACKGROUND

[0002] The axial flow fan is a common air cooling fan in industrial application, and is widely applied to the fields of automobile engine cooling, industrial ventilation and heat dissipation and air conditioning cooling due to the advantages of simple structure, light weight, low price and good heat dissipation effect.

[0003] The traditional fan core usually adopts the inner positioning mode, that is, the middle part of the core is fixed on the outer frame. Since the volume of the fan core is relatively large, great vibration and noise are generated during the operation of the fan. During the wiring process, the high-speed operation of the heat dissipation fan can cause the core to loosen and be stuck, so that the fan cannot work normally. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model aims at providing a core positioning structure, which can improve the stability of the core fixing structure.

[0005] Based on the above problems, the technical scheme provided by the utility model is:

[0006] A core positioning structure comprises:

[0007] A core base is arranged on a fan outer frame and has a limiting groove for placing a stator core;

[0008] A plurality of limiting blocks are uniformly arranged on the circumference of the limiting groove and correspond to a plurality of slots on the stator core, and the limiting blocks partially extend into the limiting groove.

[0009] In some embodiments, the number of limiting blocks is at least three.

[0010] In some embodiments, the limiting block comprises a clamping portion and a limiting portion arranged from the outer circumference to the inner circumference of the limiting groove, the clamping portion matches the slots on the stator core, and the limiting portion extends into the slots.

[0011] In some embodiments, the limiting portion is in the shape of a sector.

[0012] In some embodiments, the limiting portion and the clamping portion are connected by an arc surface.

[0013] In some embodiments, a wiring needle extending along the axial direction of the stator core is fixed on the limiting block.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] (1) By positioning the outer periphery of the stator core with the core base, the stability of the fixing structure can be improved, and problems such as core loosening or jamming caused by noise and vibration can be avoided;

[0016] (2) By positioning the outer periphery of the stator core with the core base, the interference of the positioning structure on the wire arrangement can be avoided;

[0017] (3) The wire arrangement needle is arranged on the limiting block, which facilitates the wire arrangement of the stator winding and improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of not paying creative labor.

[0019] Figure 1 is a structural schematic view of an embodiment of the core positioning structure of the present application;

[0020] Figure 2 is a use state schematic view of the embodiment of the present application;

[0021] Among them:

[0022] 1, core base; 1-1, limiting groove;

[0023] 2, limiting block; 2-1, clamping part; 2-2, limiting part;

[0024] 3, wire arrangement needle;

[0025] 4, stator core; 4-1, slot;

[0026] 5, fan outer frame. DETAILED DESCRIPTION

[0027] The above scheme will be further described below in combination with specific embodiments. It should be understood that these embodiments are used to illustrate the present application and do not limit the scope of the present application. The implementation conditions used in the embodiments can be further adjusted according to the specific conditions of the manufacturer, and the implementation conditions not marked are usually the conditions in the conventional experiment.

[0028] As shown in Figure 1 and Figure 2 is a structural schematic view of an embodiment of the present application, which provides a core positioning structure, comprising a core base 1 and a plurality of limiting blocks 2 arranged circumferentially on the core base 1, and the plurality of limiting blocks 2 are integrally formed with the core base 1.

[0029] The iron core base 1 is arranged on the fan outer frame and has a limiting groove 1-1 for placing the stator core 4, which is in a circular ring shape to match the stator core 4.

[0030] A plurality of limiting blocks 2 are uniformly arranged on the circumferential direction of the limiting groove 1-1 and correspond to a plurality of notches 4-1 on the stator core 4, and the limiting blocks 2 partially extend into the limiting groove 1-1, and when the limiting blocks 2 are matched with the stator core 4, the limiting blocks 2 extend into the notches 4-1.

[0031] In this example, the number of limiting blocks 2 is three, and they are uniformly arranged on the circumferential direction of the limiting groove 1-1, and three limiting blocks 2 can stably position the stator core 4 on the iron core base 1, and it should be understood that more limiting blocks 2 can be arranged according to needs, and the present application does not limit it.

[0032] In this example, the limiting block 2 includes a clamping part 2-1 arranged from the outer circumferential direction to the inner circumferential direction of the limiting groove 1-1 and a limiting part 2-2, the clamping part 2-1 matches the notch 4-1 of the stator core 4 to achieve clamping positioning, and the limiting part 2-2 extends into the notch 4-1, preferably, the limiting part 2-2 is in a fan shape and has a size larger than the clamping part 2-1, and the limiting part 2-2 and the clamping part 2-1 are transitioned through an arc surface.

[0033] In order to further optimize the implementation effect of the present application, a wire arranging needle 3 extending in the axial direction of the stator core 4 is fixed on the limiting block 2, the wire head of the stator winding can be wound on the wire arranging needle 3, which is convenient for wire arrangement and avoids problems such as winding wire head disorder and wire arrangement failure caused by wire arrangement through the notch 4-1.

[0034] In summary, the iron core positioning structure can stably fix the stator core on the fan outer frame, reduce core vibration and noise, ensure the normal work of the fan, and improve the performance of the fan.

[0035] The above examples are only for illustrating the technical concept and characteristics of the present application, the purpose is to enable the personnel familiar with this technology to understand the content of the present application and to implement it, and it cannot limit the protection scope of the present application. Any equivalent transformation or modification according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A core positioning structure characterized by comprising: The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure.

2. The core positioning structure according to claim 1, characterized by: The application relates to a fan motor stator iron core fixing structure.

3. The core positioning structure according to claim 1, characterized by: The application relates to a fan motor stator iron core fixing structure.

4. The core positioning structure according to claim 3, characterized by: The application relates to a fan motor stator iron core fixing structure.

5. The core positioning structure according to claim 4, characterized by: The application relates to a fan motor stator iron core fixing structure.

6. The core positioning structure of claim 1, wherein: The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to a fan motor stator iron core fixing structure. The application relates to

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