CN205173056U - External rotor axial fan impeller device with heat radiation structure - Google Patents
External rotor axial fan impeller device with heat radiation structure Download PDFInfo
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- CN205173056U CN205173056U CN201520834420.XU CN201520834420U CN205173056U CN 205173056 U CN205173056 U CN 205173056U CN 201520834420 U CN201520834420 U CN 201520834420U CN 205173056 U CN205173056 U CN 205173056U
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- screens
- cylindrical ring
- external rotor
- tourus
- rotor axial
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Abstract
The utility model discloses an external rotor axial fan impeller device with heat radiation structure, including impeller body and midbody, impeller body form by a plurality of fan blades and outer tourus, the midbody is become by the screens body group of interior tourus and equipartition above that, the internal surface of tourus outside is equipped with the arch to an orientation of its terminal surface at least, and bellied position of rest is in a terminal surface department of the screens body, stops exceeding the terminal surface of midbody in outer tourus, between interior tourus and the outer tourus through mould plastics in the fretwork in that the screens bodily form becomes or die -casting fixed in order to interconnect. The beneficial effects of the utility model are that: the intensity at impeller body blade root position has been strengthened. To the different hollowed out design of the screens body, it is mobile to have strengthened the air, is favorable to impeller root and motor body's thermal diffusivity. The heat dissipation of motor has been accelerateed effectively in heat dissipation muscle and the crisscross distribution of the screens body, guarantees the good operation of fan.
Description
Technical field
The utility model relates to a kind of external rotor axial-flow fan impeller unit, particularly relates to a kind of axial flow fan vane wheel for supporting external rotor electric machine.
Background technique
The advantages such as external rotor electric machine has compact structure, and efficiency is high, and noise is low, the field such as to freeze in civilian and commercial ventilation, heat has and uses widely.Mostly being metallic material punching press uniform thickness bent plate fan blade is at present connected on rotor by the mode of welding, plastic blade owing to can there is good aerodynamic performance by being injection molded into the good air-foil of aerodynamic quality, therefore many increasing application.Conventional plastic impeller often adds a rigidity and the good steel ring of intensity within it when molding and forming, directly can be pressed into the surface of external rotor electric machine by frock.The same processing that also can be realized air-foil impeller by the mode of aluminium die casting.The problems such as the Placement of these conventional impellers and motor exists the problem of soundness on the one hand, and the position thermal diffusivity that another aspect impeller root is connected with motor is bad.
Model utility content
The purpose of this utility model overcomes deficiency of the prior art, and provide a kind of rational in infrastructure, heat radiation is good, the external rotor axial-flow fan impeller unit of what aerodynamic performance was good have radiating structure.
This external rotor axial-flow fan impeller unit with radiating structure, comprises impeller bodies and intermediate; Described impeller bodies is made up of some fan blades and cylindrical ring body; Described intermediate is made up of interior cirque body and screens body uniform thereon; Toric internal surface outside, a direction at least to its end face is provided with projection, and protruding initial position, in an end of screens body, ends at the end face that outer toroid height goes out intermediate; Between described interior cirque body and cylindrical ring body by screens body formed hollow out in injection moulding or die casting fixing to be connected to each other.
As preferably: described cirque body extends certain altitude vertically by circle ring surface and formed; Described interior cirque body extends certain height vertically by toroidal surface and is formed; The height of cylindrical ring body is not less than interior toric height.
As preferably: described cylindrical ring body is to be interconnected part material identical with interior cirque body with interior cirque body, and the remaining part of cylindrical ring body is identical with the material of fan blade.
As preferably: between described interior cirque body and cylindrical ring body, what the screens body only in the position of corresponding fan blade was formed engraves Aerial parts or all carry out injection moulding or die casting.
As preferably: described interior cirque body is also provided with the radiating fin be interspersed with screens body.
The beneficial effects of the utility model are:
1) according to the utility model, some fan blades and coupled cirque body can be realized by the mode of aluminium die casting, injection moulding or punching press, strengthen the intensity at impeller bodies blade root position.
2) according to the utility model, the realization of intermediate can be realized by the mode of Aluminum alloy tensile or aluminium die casting, is achieved the connection of impeller bodies and intermediate along toric screens body by the fan blade root embedded.For the different hollow out designs of screens body, strengthen air flowing, be conducive to the thermal diffusivity of impeller root and motor body.
3) according to the utility model, at toric circumference, the radiating fin being dispersed with some is shown in Figure of description, these radiating fin and and screens body be interspersed, effectively accelerate the heat radiation of motor, ensure the good operation of blower fan.
4) according to the utility model, the cirque body that Aluminum alloy tensile or aluminium die casting are formed, motor can be connected on the surface by the mode of frock vertical compression or hot jacket, pressure, also can once-through in the motor rotor die-casting process of external rotor electric machine, this fit system is more firm, and connect relative to steel ring, cirque body can carry out machining, the fit dimension on adjustment and motor surface comparatively can be easy in process of production.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is cylindrical ring body and inner circle ring body structurc schematic diagram;
Fig. 3 is a kind of screens body structure schematic diagram;
Fig. 4 is a kind of intermediate structure schematic diagram;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 to Figure 10 is other 5 kinds of intermediate structure schematic diagram;
Figure 11 to Figure 12 is the utility model perspective structure schematic diagram of band cylindrical ring body;
Figure 13 to Figure 14 is the utility model perspective structure schematic diagram not with cylindrical ring body;
Description of reference numerals: fan blade 1, impeller bodies 2, intermediate 3, toroidal surface 4, circle ring surface 5, screens body A6, screens body B7, screens body C8, screens body D9, screens body E10, cylindrical ring body 11, interior cirque body 12, face A13, face B14, face C15, face D16, face E17, face F18.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.Although the utility model will be described in conjunction with preferred embodiment, should know, not represent the utility model restriction in the described embodiment.On the contrary, the utility model will contain can be included in attached claims limit scope of the present utility model in alternative, modified model and equivalent.
As shown in Figure 1, a kind of external rotor axial-flow fan impeller unit, comprises impeller bodies 2 and intermediate 3, and this device is connected on external rotor electric machine (not showing in the utility model) rotor by vertical compression or hot jacket, the mode such as to cold pressing.Impeller bodies 2 is made up of some fan blades 1 and cylindrical ring body 11, wherein fan blade 1 can be plastics, the raw material such as metal or composite material passes through injection moulding, die casting, the processing technologys such as punching press are formed, and cylindrical ring body 11 is the said parts that generally should exist in the utility model, it can with fan blade 1 with same or different materials, identical or different processing technologys links together, then that adjacent two panels fan blade 1 does not have transition to connect for the non-existent situation of cylindrical ring body 11, fan blade 1 is connected with intermediate 3 by injection moulding die casting or the mode that is threaded by embedding in screens body.
And for cylindrical ring body 11, it extends certain altitude vertically by circle ring surface 5 and is formed, the internal surface of cirque body 11 outside, a direction at least to its end face thickeies, the initial position thickeied is an end face as screens body A6, ends at the end face that cylindrical ring body 11 exceeds intermediate 3.For intermediate 3, its by interior cirque body 12 and some screens bodies as compositions such as screens body A6, screens body B7, screens body C8, screens body D9 and screens body E10.Interior cirque body 12 extends certain height vertically by toroidal surface 4 and is formed, because the internal surface of interior cirque body 12 will be fitted with the outer surface of external rotor electric machine described in the utility model, and cylindrical ring body 11 connects and along the circumferential direction protrudes some fan blades 1 to radial direction, for the blower sizes of different model, the blade root size of fan blade 1 is different, often in order to strengthen fastness, the height of cylindrical ring body 11 is generally not less than the height of interior cirque body 12.Screens body A6, screens body B7, screens body C8, screens body D9 mainly can have certain space to be firmly connected with the root of blade 1 with these screens bodies of screens body E10, namely in these screens bodies, there is the root portion of blade 1 to embed, but simultaneously in order to realize good ventilation and heat, part screens body can local hollow out or whole hollow out.For the place that cylindrical ring body 11 and interior cirque body 12 occur simultaneously mutually, its material is identical with interior cirque body 12, and the remainder of cylindrical ring body 11 is general identical with the material of fan blade 1, namely realized by the mode of identical technique as injection moulding or cast aluminium, also certain thickness this material should be had on the surface of interior cirque body 12, except the surface of discord motor contact, to ensure the soundness of impeller entirety.At the circumference of interior cirque body 12, be dispersed with the radiating fin of some, these radiating fin and and screens body be interspersed.
Fig. 3 gives a kind of shape of screens body, its face D16, face E17, face F18 can be illustrated in figure 3 right angle and connect, also the connection of the mode transition at fillet or inclination angle can be passed through, its shape can be T, F etc. but be not limited to these shapes, as long as the part that fan blade 1 can be made to enter screens body can firmly connect, ensure that impeller is securely stablized in the running.Screens body A6 as shown in Figure 1, screens body B7, screens body C8, screens body D9 and screens body E10 can be considered as corresponding a slice fan blade 1, the situation of the different numbers of blade or screens body number can be different, the utility model can in screens body A6, screens body B7, screens body C8 or any two roots being embedded in fan blade 1 of these three screens bodies, and all the other screens bodies comprise screens body D9 and screens body E10 and carry out hollow out, simultaneously also can some Pierced structures of design locally in the screens body that these have blade root to embed.All Pierced structures can strengthen air flow ventilating, reduce the temperature of blower fan.
Intermediate 3 as shown in Figure 4, the surface of the face D16 in its face A13, face B14, face C15 and Fig. 3, face E17, face F18 injection moulding can enter the plastics of certain surface thickness to strengthen the join strength of impeller bodies 2 and intermediate 3, realize according to the mode that its main technology mode of the utility model is Aluminum alloy tensile or aluminium die casting, also can once-through in the motor rotor die-casting process of external rotor electric machine, mainly can realize effective connection of external rotor electric machine and impeller bodies, therefore its processing technology is not limited to these two kinds.In the press casting procedure of rotor, intermediate 3 also can be formed simultaneously in press casting procedure.
Figure 11 to Figure 14 is the structural representation of two kinds of the utility model impeller units, and wherein Figure 11 and Figure 12 is that cylindrical ring body 11 exists and the design of the complete hollow out of screens body or local hollow out.Figure 13 and Figure 14 is that cylindrical ring body 11 does not exist, and fan blade 1 root is to both direction bending and press close to screens body, is then fixed connection by screw.
Claims (5)
1. there is an external rotor axial-flow fan impeller unit for radiating structure, it is characterized in that: comprise impeller bodies (2) and intermediate (3); Described impeller bodies (2) is made up of some fan blades (1) and cylindrical ring body (11); Described intermediate (3) is made up of interior cirque body (12) and screens body uniform thereon; The internal surface of cirque body (11) outside, a direction at least to its end face is provided with projection, and protruding initial position, in an end of screens body, ends at the end face that cylindrical ring body (11) exceeds intermediate (3); Between described interior cirque body (12) and cylindrical ring body (11) by screens body formed hollow out in injection moulding or die casting fixing to be connected to each other.
2. the external rotor axial-flow fan impeller unit with radiating structure according to claim 1, is characterized in that: described cirque body (11) extends certain altitude vertically by circle ring surface (5) and formed; Described interior cirque body (12) is extended certain height vertically by toroidal surface (4) and is formed; The height of cylindrical ring body (11) is not less than the height of interior cirque body (12).
3. the external rotor axial-flow fan impeller unit with radiating structure according to claim 1, it is characterized in that: described cylindrical ring body (11) is to be interconnected part material identical with interior cirque body (12) with interior cirque body (12), and the remaining part of cylindrical ring body (11) is identical with the material of fan blade (1).
4. the external rotor axial-flow fan impeller unit with radiating structure according to claim 1, it is characterized in that: between described interior cirque body (12) and cylindrical ring body (11), what the screens body only in the position of corresponding fan blade (1) was formed engraves Aerial parts or all carries out injection moulding or die casting.
5. the external rotor axial-flow fan impeller unit with radiating structure according to claim 1, is characterized in that: described interior cirque body (12) is also provided with the radiating fin be interspersed with screens body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834420.XU CN205173056U (en) | 2015-10-26 | 2015-10-26 | External rotor axial fan impeller device with heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834420.XU CN205173056U (en) | 2015-10-26 | 2015-10-26 | External rotor axial fan impeller device with heat radiation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205173056U true CN205173056U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834420.XU Active CN205173056U (en) | 2015-10-26 | 2015-10-26 | External rotor axial fan impeller device with heat radiation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257594A (en) * | 2015-10-26 | 2016-01-20 | 杭州微光电子股份有限公司 | Outer rotor axial flow fan impeller device with cooling structure |
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2015
- 2015-10-26 CN CN201520834420.XU patent/CN205173056U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257594A (en) * | 2015-10-26 | 2016-01-20 | 杭州微光电子股份有限公司 | Outer rotor axial flow fan impeller device with cooling structure |
| WO2017071175A1 (en) * | 2015-10-26 | 2017-05-04 | 杭州微光电子股份有限公司 | Impeller device of outer rotor axial flow fan with heat dissipation structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |