CN100453819C

CN100453819C - Fan casing

Info

Publication number: CN100453819C
Application number: CNB2005100557181A
Authority: CN
Inventors: 林士凯; 陈弘琪; 庄德财; 黄文喜
Original assignee: Delta Electronics Inc
Current assignee: Taida Electronic Industry Co Ltd; Delta Electronics Inc
Priority date: 2005-03-18
Filing date: 2005-03-18
Publication date: 2009-01-21
Anticipated expiration: 2025-03-18
Also published as: CN1834471A

Abstract

The present invention provides a fan casing. An opening is arranged at an axle center part, and a stiffening section is arranged at the periphery of the opening towards the inner side of the casing in an extending and turning way. Via the arrangement of the stiffening section, combining materials emitted and buried between an axle and the casing have good mechanical strength. In this way, the axle and the combining materials can both tightly combined with the casing and has little possibility of falling.

Description

Blower-casting

Technical field

The present invention relates to a kind of blower-casting, particularly a kind of blower-casting of strengthening mechanical strength and promoting product reliability.

Background technique

In existing various fan, the axle of its rotor structure part is the combination that has as shown in Figures 1 and 2 with housing, wherein:

Shown in Figure 1 is a kind of " moulding is imbedded in ejaculation " mode, it is earlier axle 20 to be placed on the bond zone 11 of housing 10 axis central parts, then utilize joining materials such as plastics or soft alloy 30 to penetrate and imbed, therefore make this axle 20 be fixed on this housing 10 between axle 20 and the housing 10;

Shown in Figure 2 is a kind of " interference fit " mode, it is earlier axle 20 to be fixedly arranged in the copper sheathing 40, then again this copper sheathing 40 is interspersed in the opening 12 of housing 10 axis central parts, an end that at last copper sheathing 40 is passed opening 12 is fixed in housing 10 in the riveted joint mode, so, this axle 20 promptly can't break away from from housing 10.

Above-mentioned two kinds of modes that make axle 20 be incorporated into housing 10, on reality is used is that following described disappearance is arranged, wherein be somebody's turn to do " moulding is imbedded in ejaculation " mode, it is because of joining material 30 and housing 10 and suitable the lacking of axle 20 parts of being occured simultaneously, unavoidably can be because the rigidity deficiency of housing 10, and cause coming off separately or situation that axle 20 and joining material 30 come off simultaneously of axle 20; Moreover, " interference fit " mode of being somebody's turn to do, it is in fashion of extrusion affixed (riveted joint) mode because of copper sheathing 40, so its vibration strength promptly has certain restriction, heavier or when the metal fatigue phenomenon is arranged when rotor, promptly easily surpass its vibration strength and cause riveting portion that fracture takes place or situation such as get loose, and then axle 20 situations of separating with housing 10 are arranged.

Apparently, above-mentioned two kinds of rotor structures of making by different combinations, can't guarantee effectively that axle can be fixed on the housing muchly, and make that the applicability of fan is comparatively narrow, or there is often disappearance such as maintain and replace member to exist, under the trend of more and more stressing the commodity serviceability, this two known rotor structure can not satisfy industry and Consumer's needs in fact, so necessity of improvement is arranged.

Summary of the invention

Therefore, for addressing the above problem, the present invention proposes a kind of blower-casting for axle combination firmly, and is promoted the adhesive strength between the two, and then promotes the reliability and the durability of rotor structure.

According to purpose of the present invention, a kind of blower-casting is proposed, this housing extends turnover in opening periphery direction in the shell and is provided with a reinforcement section, by this, penetrates the joining material that is embedded between axle and the housing, can have preferable mechanical strength because of the reinforcement of this reinforcement section; Thus, this axle all can more closely combine with housing with joining material, with conventional construction in comparison, be difficult for having the facts that comes off to take place, so can have preferable reliability and durability.

For above and other objects of the present invention, feature and advantage can be become apparent, a preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.

Description of drawings

Fig. 1 is the sectional view of known fan propeller structure.

Fig. 2 is the sectional view of another kind of known fan propeller structure.

The flow chart (one) that Fig. 3 A combines with axle for blower-casting of the present invention.

The flow chart (two) that Fig. 3 B combines with axle for blower-casting of the present invention.

The flow chart (three) that Fig. 3 C combines with axle for blower-casting of the present invention.

Fig. 4 is the sectional view of Fig. 3 C.

[primary component symbol description]

10 housings, 11 bond zones, 12 openings

20 30 joining material 40 copper sheathings

50 housings, 51 openings, 52 supporting sections

60 61 annular grooves of 53 reinforcement sections

70 joining materials

Embodiment

Please consult Fig. 3 A, 3B, 3C and Fig. 4 simultaneously, Fig. 3 A, 3B, 3C are combined into the flow chart of a rotor structure in order to explanation blower-casting of the present invention and axle; Fig. 4 is the sectional view of Fig. 3 C.

Consult Fig. 3 A, this housing 50 is the main body of fan propeller structure, and its form can be the tubular structure that a bottom has opening 51, and this opening 51 is positioned at the axis central part of bottom surface, mainly uses the combination for axle 60.

This housing 50 has a circular supporting section 52 in nearly opening system depression, and the end of this supporting section 52 more extends turnover in the shell one reinforcement section 53 (a similar circle neck) is arranged.

Further say, the sectional shape of this housing 50 can be circle, polygonal or other analogous shape, and this opening 51 also can be circle, polygonal or other has the shape of aforementioned functional, therefore, this supporting section 52 also can cooperate because of the difformity of housing 50 with opening 51 except that circular to some extent.

Moreover the use of these housing 50 materials can be metal, plastics, alloy etc., and the structure generation type of this housing 50 can be punching press or one-body molded.

In addition, the turning angle of this reinforcement section 53 is 90 degree as shown in Figure 3A, and it also can be embodied as easily angle of processing of 45 degree or other, does not only do announcement on graphic in addition at this.

Please consult Fig. 3 B and Fig. 3 C again, as shown in the figure, this 60 wherein end system be extended through in the opening 51 of housing 50, and be provided with an annular groove 61 in this end, in conjunction with the time, be that available plastics or other soft alloy joining materials such as (as: aluminium, zinc, aluminum-magnesium alloys) 70 penetrates and imbeds between this axle 60 and the housing 50.

What deserves to be mentioned is, this 60 end that is extended through in the opening 51, its shape can be cylindrical (as shown in the figure), have the column of concavo-convex side or other has the shape that fixes effect.No matter only be extended through in the opening 51 with what shape, neitherly cause the ejaculation that influence joining material 70 and imbed, so other shape not other with graphic representation it.

At last, see also Fig. 4, when aforementioned joining material 70 was imbedded between axle 60 and housing 50 in ejaculation, its coating was filled up scope system and is included at least: coat whole reinforcement sections 53, the supporting section 52 of covered section fills up the space between this 60 annular groove 61 and reinforcement section 53 and the axle 60.

Edge this, the present invention and conventional construction are in comparison, because had more the setting of reinforcement section 53, so can increase the mechanical strength of joining material 70, and therefore with the supporting section 52 that extends lengthening, provide preferable support force to joining material 70 together, the reason rigidity is not enough and come off and make joining material 70; Moreover, because the setting of reinforcement section 53 makes that also originally depending merely on joining material 70 presss from both sides the axle of establishing 60, can increase the intensity that folder is pulled, thereby have better reliability degree.

The above only is exemplary, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the appended claim its equivalent modifications of carrying out or change.

Claims

1. blower-casting, it comprises an axis central part, it is provided with an opening, for a winding, and the periphery of this opening is provided with a reinforcement section, and wherein this reinforcement section is able to the joining material intensity between this axle of reinforcement and this housing, and make this axle be difficult for breaking away from this housing, this joining material envelopes this reinforcement section fully, and wherein this housing is formed with a supporting section that caves in nearly opening, and the end of this reinforcement section self-supporting section extends turnover.

2. blower-casting as claimed in claim 1, wherein this reinforcement section is transferred in this housing, and its turning angle is 45 degree, 90 degree.

3. blower-casting as claimed in claim 1, wherein this joining material is a plastic materials, and its filling is between this housing and this axle.

4. blower-casting as claimed in claim 1, wherein this joining material is a metallic material, and its filling is between this housing and this axle.

5. blower-casting as claimed in claim 4, wherein this metallic material be aluminium, zinc or aluminum-magnesium alloy one of them.

6. blower-casting as claimed in claim 1, wherein the generation type of this reinforcement section is impact briquetting.

7. blower-casting as claimed in claim 1, wherein the generation type of this reinforcement section is formed in one.

8. blower-casting as claimed in claim 1, wherein this end that is extended through this opening is a cylindrical structural.

9. blower-casting as claimed in claim 1, wherein this end that is extended through opening has an annular groove, or other has the column structure that fixes effect.