CN203362553U

CN203362553U - Cooling fan

Info

Publication number: CN203362553U
Application number: CN 201320302842
Authority: CN
Inventors: 曾文仁
Original assignee: SHENZHEN REN GANG ELECTRONICS Co Ltd
Current assignee: SHENZHEN REN GANG ELECTRONICS Co Ltd
Priority date: 2013-05-29
Filing date: 2013-05-29
Publication date: 2013-12-25
Anticipated expiration: 2023-05-29

Abstract

The utility model provides a cooling fan. The cooling fan comprises a bottom shell, a central shaft, a motor and fan blades, wherein the central shaft is fixedly arranged at the bottom shell, the motor is a series-pole motor comprising a rotor and a stator, the rotor and the fan blades are fixed into a whole, and the stator is fixedly arranged on the bottom shell. By the adoption of the driving mode of the series-pole motor, magnetic field force is enhanced, twisting force is enhanced, rotating speed of the motor is high, the cooling performance is improved, and service life of the whole cooling fan is prolonged.

Description

A kind of radiation fan

Technical field

The utility model relates to a kind of sink, espespecially a kind of radiation fan.

Background technique

A kind of radiation fan of applying in the market, the general motor with cup rotor that adopts drives, as shown in Figure 1, comprise drain pan (1), central shaft (2), stator (3), rotor (4), central shaft (2) is installed on drain pan (1), stator (3) is run through by central shaft (2) and is fixed on drain pan (1), rotor (4) one ends also stretch into described stator (3) middle part and penetrate stator (3), the inner fixed symmetrical of described stator (3) is provided with two groups of windings (6), and this structure has following deficiency:

1), the electromagnetic force that produces of two groups of windings (6) of motor with cup rotor is limited, thereby cause rotor motion torsion little, rotor speed is low;

2), for reaching required torsion, must increase the copper cash length in winding (6), too much copper cash accumulation is wound around, heat dispersion is not good;

3), because of to fixedly the having relatively high expectations of winding, for fixing the designed fixed structure complexity of these two groups of windings (6), complex manufacturing, cost also improves thereupon.

The model utility content

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides that a kind of torsion is large, rotating speed is high, the radiation fan of perfect heat-dissipating.

The utility model is achieved in that a kind of radiation fan, comprise drain pan, be installed in central shaft, motor and flabellum on drain pan, described motor is string utmost point motor, described string utmost point motor comprises rotor and stator, described rotor and described flabellum are fixed into an integral body, and described stator is fixedly arranged on described drain pan.

Preferably, described stator is comprised of winding and silicon steel sheet, and described winding runs through described silicon steel sheet.

Preferably, described winding is more than two groups.

Preferably, described winding has 16 groups, and each organizes the winding cross arrangement.

Preferably, described silicon steel sheet is ring-type.

Preferably, described silicon steel sheet inwall is provided with for the fixing groove of winding, and described winding penetrates described groove and is fixed on described silicon steel sheet inwall.

A kind of radiation fan that the utility model provides, comprise drain pan, be installed in central shaft, motor and flabellum on drain pan, and described motor is string utmost point motor, described string utmost point motor comprises rotor and stator, described rotor and described flabellum are fixed into an integral body, and described stator is fixedly arranged on described drain pan, adopt string utmost point motor, magnetic force strengthens, torsion strengthens, and motor speed is fast, winding is divided into to many groups and is arranged on silicon steel sheet, improve heat dispersion, machine life extends.

The accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is a kind of radiation fan decomposition texture of the utility model schematic diagram;

Fig. 2 is a kind of embodiment's schematic diagram of a kind of radiation fan of the utility model;

Fig. 3 is the stator structure schematic diagram plan view that a kind of radiation fan embodiment of the utility model provides;

In figure, the 1-drain pan; The 2-central shaft; The 3-stator; The 4-rotor; The 5-silicon steel sheet; The 6-winding; The 7-groove.

Embodiment

In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 2, a kind of radiation fan, comprise drain pan 1, the string utmost point motor formed by stator 3 and rotor 4, described drain pan 1 is provided with central shaft 2, described stator 3 is provided with central through bore, described stator 3 is run through by described central shaft 2 and is fixed on described drain pan 2, described rotor 4 stretches in described stator 3 central through bores, described stator 3 is comprised of winding 6 and silicon steel sheet 5, described winding 6 runs through described silicon steel sheet 5, described winding 6 is more than 2 groups, adopt the string utmost point motor of many group windings 6 that magnetic force is strengthened, torsion strengthens, motor speed is fast, winding 6 is divided into to many groups to be arranged on silicon steel sheet, improve heat dispersion, machine life extends.

Be illustrated in figure 3 a kind of embodiment's winding of the utility model arrangement mode schematic diagram, described winding has 16 groups, and each organizes the winding cross arrangement, and 16 groups of winding cross arrangement are simple and reasonable, excellent in heat dissipation effect.

As shown in Figure 3, described silicon steel sheet 5 is ring-type.

Preferably, described silicon steel sheet 5 inwalls are provided with for the fixing groove 7 of winding 6, and described winding 6 penetrates described groove 7 and is fixed on described silicon steel sheet 5 inwalls, and winding 6 firmly is connected with silicon steel sheet 5, simple in structure and stable.

These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a radiation fan, comprise drain pan, be installed in central shaft, motor and flabellum on drain pan, it is characterized in that: described motor is string utmost point motor, and described string utmost point motor comprises rotor and stator, described rotor and described flabellum are fixed into an integral body, and described stator is fixedly arranged on described drain pan.

2. a kind of radiation fan as claimed in claim 1, it is characterized in that: described stator is comprised of winding and silicon steel sheet, and described winding runs through described silicon steel sheet.

3. a kind of radiation fan as claimed in claim 2, it is characterized in that: described winding is more than two groups.

4. a kind of radiation fan as claimed in claim 3, it is characterized in that: described winding has 16 groups, and each organizes the winding cross arrangement.

5. a kind of radiation fan as claimed in claim 2, it is characterized in that: described silicon steel sheet is ring-type.

6. a kind of radiation fan as claimed in claim 5 is characterized in that: described silicon steel sheet inwall is provided with for the fixing groove of winding, and described winding penetrates described groove and is fixed on described silicon steel sheet inwall.