CN213331590U

CN213331590U - Radiator fan convenient to manufacture and assemble

Info

Publication number: CN213331590U
Application number: CN202021190624.1U
Authority: CN
Inventors: 林福龙; 陈仁辉; 廖新玉; 黄晓伟
Original assignee: Shenzhen Dongweifeng Electronic Technology Co ltd
Current assignee: Shenzhen Dongweifeng Electronic Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-06-01
Anticipated expiration: 2030-06-22

Abstract

The utility model relates to a radiator fan of convenient manufacturing and equipment, it is including a silicon steel sheet, a framework, a plurality of winding coils of cladding silicon steel sheet outer peripheral edges with and with the insulating frame that silicon steel sheet combined together to and a rotor subassembly, the rotor subassembly can cover in a plurality of insulating frame tops with rotating, wherein, silicon steel sheet and a plurality of insulating frame simple structure make easy and low in manufacturing cost, make the back of accomplishing, see through the perforation with each insulating frame and establish simply on the magnetic conduction convex part of silicon steel sheet, accomplish the equipment promptly. This neotype beneficial effect is: the stator assembly structure effectively overcomes the defects of difficulty in manufacturing and high manufacturing cost of the existing stator assembly structure of the cooling fan.

Description

Radiator fan convenient to manufacture and assemble

Technical Field

The present invention relates to a heat dissipation fan, and more particularly, to a heat dissipation fan with easy manufacturing and assembly.

Background

Please refer to chinese patent No. CN105490399A (referred to as the former case below), a stator assembly of a conventional heat dissipation fan includes a metal substrate and a plurality of iron cores, wherein the metal substrate forms a plurality of pole teeth arranged in a circular array, two ends of each iron core are respectively sleeved on two adjacent pole teeth, so that the plurality of iron cores are annularly arranged on the metal substrate, and each iron core is wound with a coil, thereby completing the stator assembly of the conventional heat dissipation fan, and then the stator assembly is disposed in a base of the conventional heat dissipation fan, and the coil is electrically connected to a circuit board located in the base, so that the coil of the stator assembly can provide a changing magnetic field, thereby driving the rotor assembly of the conventional heat dissipation fan to rotate, and through continuous rotation of blades of the rotor assembly, driving airflow and providing heat dissipation effect.

However, since the two ends of each iron core are respectively combined with the two adjacent pole teeth, it is necessary to ensure whether the two ends are aligned after assembly, and the above-mentioned description further illustrates that each iron core can be formed together with the pole teeth when the metal substrate is stamped.

Disclosure of Invention

In order to solve the disadvantages of difficult manufacture and high manufacturing cost of the structure of the stator assembly of the existing cooling fan, the present invention provides a cooling fan which is convenient to manufacture and assemble, and is further described as follows.

The present invention relates to a heat dissipation fan with convenient manufacture and assembly, which comprises:

the silicon steel sheet is provided with a plurality of magnetic conductive convex parts at intervals along the axial direction;

the frame body wraps the periphery of the silicon steel sheet, a groove is formed in the frame body, and the plurality of magnetic conductive convex parts of the silicon steel sheet are located in the groove;

the plurality of insulating frames are respectively sleeved on one of the magnetic conductive convex parts, and a coil is wound on each insulating frame; and

the rotor assembly is connected in the groove of the frame body and covers the insulating frames, the rotor assembly comprises a plurality of blades and a magnet, the blades are annularly arranged on the outer edge of the rotor assembly, the magnet is arranged on the rotor assembly and faces one side of the insulating frames, and the insulating frames and the magnetic conduction convex parts are oppositely arranged in the linear direction along the shaft.

The heat dissipation fan convenient to manufacture and assemble comprises an axis fixedly arranged at the center of the silicon steel sheet, and the center of the rotor assembly is provided with a bearing, so that the rotor assembly is sleeved on the axis through the bearing.

Further, the frame body is used for coating the outer periphery of the silicon steel sheet.

Still further, the radiator fan is also provided with a circuit board, the circuit board is arranged on the magnetic conduction convex parts through a plurality of circuit board perforating sleeves, and the circuit board is positioned between the silicon steel sheet and the plurality of insulating frames.

Preferably, a plurality of combining convex parts are arranged on the silicon steel sheet at intervals, the combining convex parts horizontally protrude out of the outer edge of the silicon steel sheet, and the frame body wraps the plurality of combining convex parts.

By foretell technical characteristic, the shape and the simple structure of this neotype silicon steel sheet and a plurality of insulating framves, both can make respectively, make easily and low in manufacturing cost, and a plurality of insulating framves just can accomplish the winding coil operation fast, make the back of accomplishing, establish each insulating frame through the perforation simply overlaps on one of them magnetic conduction convex part of silicon steel sheet corresponding, accomplish the equipment promptly, to sum up, this neotype effectively solves current radiator fan stator module's structure, is difficult for making and the high shortcoming of manufacturing cost.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the preferred embodiment of the present invention.

Fig. 3 is a structural view of a first embodiment of a silicon steel sheet according to a preferred embodiment of the present invention.

Fig. 4 is a structural view of a second embodiment of a silicon steel sheet according to a preferred embodiment of the present invention.

Fig. 5 is a side sectional view of the preferred embodiment of the invention.

Detailed Description

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 a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to understand the technical features and practical effects of the present invention in detail and to realize the same according to the content of the specification, the following detailed description of the preferred embodiments is further illustrated in the drawings:

the present invention relates to a heat dissipation fan convenient for manufacturing and assembling, the preferred embodiment of which is shown in fig. 1 and 2, comprising a silicon steel sheet 10, a frame 20, a shaft 30, a circuit board 40, a plurality of insulating frames 50, a rotor assembly 60 and a cover plate 70, wherein:

as shown in fig. 2 to 5, the

silicon steel sheets

10 and 10A include a plurality of magnetic protrusions 11, a plurality of combining protrusions 12, and a central hole 13, wherein the magnetic protrusions 11 are protruded on the surface of the silicon steel sheet 10 at intervals along an axial direction; the plurality of combining protrusions 12 horizontally protrude the outer circumferential edge of the silicon steel sheet 10, and the plurality of combining protrusions 12 are arranged at intervals; the central hole 13 penetrates through the center of the silicon steel sheet 10, the central hole 13 is positioned between the plurality of magnetic conduction convex parts 11, and the same interval is formed between the central hole 13 and each magnetic conduction convex part 11, so that the central hole 13 is positioned at the center of the plurality of magnetic conduction convex parts 11; further, as shown in fig. 3 and 4, in the preferred embodiment of the present invention, the

silicon steel sheets

10 and 10A are provided with two magnetic conductive protrusions 11 and two or six combining protrusions 12.

Compared with the prior art, the novel

silicon steel sheets

10 and 10A are simple in shape, so that the manufacturing of the

silicon steel sheets

10 and 10A is simple, and the manufacturing cost can be reduced.

As shown in fig. 2 and fig. 5, the frame 20 is formed by coating the outer peripheries of the

silicon steel sheets

10 and 10A by injection molding (insert molding), and coating the outer peripheries of the plurality of combining protrusions 12, and the top surface of the frame 20 is recessed to form a groove 21, so that the plurality of magnetic conductive protrusions 11 of the

silicon steel sheets

10 and 10A are located in the groove 21; the shaft 30 is welded and fixed to the center hole 13 of the

silicon steel sheets

10, 10A and extends into the groove 21.

As shown in fig. 2 and 5, the circuit board 40 is annular, and the circuit board 40 is provided with a plurality of circuit board through holes 41 at intervals, so that the circuit board 40 can be sleeved on the plurality of magnetic conductive protrusions 11 of the

silicon steel sheets

10 and 10A through the plurality of circuit board through holes 41 and is located in the groove 21 and on the

silicon steel sheets

10 and 10A.

As shown in fig. 2 and 5, the plurality of insulating frames 50 are located in the groove 21, the number of the plurality of insulating frames 50 is equal to the number of the plurality of magnetic conductive protrusions 11, each insulating frame 50 has a through hole 51 capable of being sleeved on one of the magnetic conductive protrusions 11 and located on the circuit board 40, each insulating frame 50 is wound with an enameled wire to form a coil 52, the coil 52 is electrically connected with the circuit board 40, so that the plurality of insulating frames 50, the circuit board 40, the shaft 30 and the

silicon steel sheets

10 and 10A together form a stator assembly of the cooling fan, and the stator assembly can be connected with single-phase electricity or three-phase electricity, an induced magnetic field is generated by the coils 52 on the plurality of insulating frames 50, and magnetic conduction is performed by the plurality of magnetic conductive protrusions 11 of the

silicon steel sheets

10 and 10A; since each insulating frame 50 is easy to manufacture, has a low manufacturing cost, and has a simple structure, compared with the prior art in which a coil is wound on a silicon steel sheet having a complicated shape, the efficiency of winding the coil 52 can be improved.

As shown in fig. 2 and 5, the rotor assembly 60 is combined in the groove 21 of the frame 20, sleeved on the shaft center 30, and covered above the plurality of insulating frames 50, a central portion of the rotor assembly 60 is recessed from top to bottom to form an accommodating groove 601, and includes a plurality of blades 61, a magnet 62, a bearing 63, and a cover 64, wherein the plurality of blades 61 are annularly disposed on an outer periphery of the rotor assembly 60; the magnet 62 is annular and fixedly arranged on the downward side of the rotor assembly 60, and is linearly opposite to the plurality of magnetic conductive protrusions 11 and the plurality of coils 52 of the insulating frame 50 along the axial direction, so that the rotor assembly 60 is driven by magnetic repulsion force when the coils 52 generate an induction magnetic field; the bearing 63 is arranged in the accommodating groove 601 and sleeved on the axis 30; the cover 64 is tightly fitted to the top of the receiving groove 601 and is welded to the top of the receiving groove 601, and the cover 64 downwardly abuts the bearing 63 against the bottom of the receiving groove 601.

As shown in fig. 1 and 5, the cover plate 70 is combined with the frame 20 and covers the rotor assembly 60 and the groove 21, and an air inlet 71 is formed through the center of the cover plate 70 for allowing air to pass through when the rotor assembly 60 rotates.

By the technical characteristics, the shape and the simple structure of this neotype

silicon steel sheet

10, 10A and a plurality of insulating frame 50, both can make respectively, and it is easy and low in manufacturing cost to make, and a plurality of insulating frame can accomplish the winding coil operation fast, and after the completion of making, overlap each insulating frame 50 on one of them magnetic conduction convex part 11 of

silicon steel sheet

10, 10 corresponding simply through perforation 51, accomplish the equipment promptly, to sum up, this neotype effectively solves current radiator fan stator module's structure, and difficult manufacturing and the high shortcoming of manufacturing cost are by providing a radiator fan who conveniently makes and assemble.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art should understand that they can make various changes and modifications without departing from the scope of the present invention.

Claims

1. A radiator fan convenient to manufacture and assemble is characterized by comprising:

2. The heat dissipating fan as claimed in claim 1, further comprising a shaft fixed at the center of the silicon steel sheet, and a bearing is disposed at the center of the rotor assembly, so that the rotor assembly is sleeved on the shaft through the bearing.

3. The heat dissipating fan as claimed in claim 1, wherein the frame body is used for covering an outer circumference of a silicon steel sheet.

4. The heat dissipating fan as claimed in claim 3, further comprising a circuit board disposed on the plurality of magnetic conductive protrusions through a plurality of circuit board through holes, wherein the circuit board is located between the silicon steel sheet and the plurality of insulating frames.

5. The heat dissipating fan as claimed in any one of claims 1 to 4, wherein a plurality of engaging protrusions are formed on the silicon steel sheet at intervals, the engaging protrusions horizontally protrude from an outer edge of the silicon steel sheet, and the frame body covers the plurality of engaging protrusions.