Fan motor

Abstract

The utility model discloses a fan motor, which relates to the technical field of cooling fans, and comprises a main body, the main body further comprises an insulating framework and a silicon steel sheet arranged in the insulating framework, the middle part of the insulating framework is provided with a hollow mounting cavity, a plurality of winding arms are arranged in an array by taking the hollow mounting cavity as a center, and the winding arms are arranged in the hollow mounting cavity. The winding arms are wound with the coils, the coils are flat wires, traditional round enameled wire winding is replaced with flat wire winding, the winding space in the rotor is further improved, and therefore the utilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation fans, in particular to a fan motor. Background Art

[0002] Traditional fan motors usually use wound round enameled wires. This type of enameled wire takes up more winding space during winding and has a low utilization rate. Utility Model Content

[0003] The utility model aims to provide a fan motor to solve the problems of wasted winding space and low utilization rate proposed in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan motor, comprising a main body, the main body also comprising an insulating frame and a silicon steel sheet arranged in the insulating frame, a hollow installation cavity is opened in the middle of the insulating frame, a plurality of winding arms are arranged in an array with the hollow installation cavity as the center, a coil is wound on the winding arm, and the coil is a flat wire.

[0005] Preferably, a cavity is provided inside the winding arm of the insulating frame, a finite surface is mirrored on one side of the cavity, and a protruding structure is provided at one end of the upper surface of the winding arm.

[0006] Preferably, the insulating skeleton and the silicon steel sheet are integrally formed by intramold injection molding.

[0007] Preferably, an assembly hole is opened in the middle of the silicon steel sheet, and a plurality of extension arms arranged in the cavity of the insulating frame are arranged in an array with the assembly hole as the center. A limiting portion is formed at one end of the extension arm, and the limiting portion is limitedly abutted against a limiting surface on one side of the cavity.

[0008] Compared with the prior art, the beneficial effect of the utility model is that flat wire winding is used instead of traditional round enameled wire winding, so as to further increase the winding space inside the rotor, thereby improving the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the structure of the silicon steel sheet of the utility model;

[0011] Figure 3 This is a schematic diagram of the insulating skeleton structure of the utility model;

[0012] Figure 4 It is a schematic diagram of the overall structure of the utility model (the coil is not shown);

[0013] Figure 5This is a schematic diagram of the coil structure of the utility model.

[0014] In the figure:

[0015] 100. Subject;

[0016] 10. Silicon steel sheet; 11. Assembly hole; 12. Extension arm; 13. Limiting part; 20. Insulation frame;

[0017] 21. Winding arm; 22. Cavity; 23. Protruding structure; 24. Mounting cavity; 25. Limiting surface; 30. Coil. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 A fan motor includes a main body 100, the main body 100 also includes an insulating frame 20 and a silicon steel sheet 10 arranged in the insulating frame 20, a hollow installation cavity 24 is opened in the middle of the insulating frame 20, and a plurality of winding arms 21 are arranged in an array with the hollow installation cavity 24 as the center, a coil 30 is wound on the winding arm 21, and the coil 30 is a flat wire. The flat wire winding is used instead of the traditional round enameled wire winding, so as to further increase the winding space inside the rotor, thereby improving the utilization rate.

[0020] Specifically, a cavity 22 is provided inside the winding arm 21 of the insulating skeleton 20, and a limited position surface 25 is mirrored on one side of the cavity 22. A protruding structure 23 is provided at one end of the upper surface of the winding arm 21. The setting of the protruding structure 23 forms a limit for the wound coil 30, thereby ensuring the firmness and stability of the winding of the coil 30. At the same time, a limiting surface 25 is formed at one end of the cavity 22, which is convenient for the subsequent installation of the silicon steel sheet 10, and a limiting and anti-slip structure is formed between the insulating skeleton 20 and the silicon steel sheet 10, which is highly practical.

[0021] Specifically, the insulating skeleton 20 and the silicon steel sheet 10 are integrally formed by intramold injection molding, which further increases the stability of the structure between the two and improves production efficiency.

[0022] Specifically, an assembly hole 11 is opened in the middle of the silicon steel sheet 10, and a plurality of extension arms 12 are arranged in an array with the assembly hole 11 as the center and are arranged in the cavity 22 of the insulating skeleton 20. A limiting portion 13 is formed at one end of the extension arm 12, and the limiting portion 13 is limitedly abutted against a limiting surface 25 on one side of the cavity 22. The silicon steel sheet 10 and the insulating skeleton 20 are installed through the assembly hole 11. The insulating skeleton 20 is injection molded on the silicon steel sheet 10 to form a winding arm 21, and a limiting surface 25 is formed at the end of the winding arm 21. The limiting portion 13 abuts against the limiting surface 25, thereby further improving the stability between the silicon steel sheet 10 and the insulating skeleton 20.

[0023] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A fan motor, characterized in that: It includes a main body, which also includes an insulating frame and a silicon steel sheet arranged in the insulating frame. A hollow installation cavity is opened in the middle of the insulating frame, and a plurality of winding arms are arranged in an array with the hollow installation cavity as the center. A coil is wound on the winding arm, and the coil is a flat wire.

2. The fan motor according to claim 1, characterized in that: A cavity is arranged inside the winding arm of the insulating frame, a finite surface is arranged in a mirror image on one side of the cavity, and a protruding structure is arranged at one end of the upper surface of the winding arm.

3. The fan motor according to claim 1, characterized in that: The insulating frame and the silicon steel sheet are integrally formed by intramold injection molding.

4. The fan motor according to claim 3, characterized in that: An assembly hole is opened in the middle of the silicon steel sheet, and a plurality of extension arms arranged in the cavity of the insulating frame are arranged in an array with the assembly hole as the center. A limiting portion is formed at one end of the extension arm, and the limiting portion is limitedly abutted against a limiting surface on one side of the cavity.

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