CN202646062U

CN202646062U - Bladeless fan

Info

Publication number: CN202646062U
Application number: CN2012201829668U
Authority: CN
Inventors: 岑健力
Original assignee: Yuyao HuaChang Electrical Appliance Manufacture Co Ltd
Current assignee: Yang Dingping
Priority date: 2011-11-09
Filing date: 2012-04-26
Publication date: 2013-01-02
Anticipated expiration: 2022-04-26
Also published as: CN103104514A; CN103104514B

Abstract

The utility model discloses a bladeless fan which comprises an air duct with an annular air outlet and further comprises an air injection fan and a driving motor. The air injection fan comprises a centrifugal impeller, the impeller is installed in a casing of the bladeless fan, the casing is of a centrifugal structure, the casing comprises an air inlet and an air outlet, and the air outlet of the casing is connected with an air inlet of the air duct. A rotation shaft of the driving motor is fixedly connected with the impeller to be used for driving the impeller to rotate. The casing air inlet, the impeller, the casing air outlet, the air duct air inlet and the annular air outlet of the air duct are sequentially communicated to form a complete air inlet/outlet duct of the bladeless fan. Due to the centrifugal impeller structure, air injection efficiency of the impeller is improved, the impeller can be in small size, the applicability of the fan is improved, and simultaneously equipment cost is reduced.

Description

A kind of without blade fan

Technical field

The utility model relates to a kind of fan, relates in particular to a kind of without blade fan.

Background technique

Need in use to arrange the protecting wire net of cage shape with the fan of fan blade, not only make efficiency is low for protecting wire net, cost is high, and Safety performance can not guarantee fully.

Therefore available technology adopting have the air channel of setting exhaust outlet and by blower fan drive air-flow without blade fan, it is existing that what adopt without blade fan is the single impeller structure, the shortcoming of prior art is that impeller horizontally rotates around vertical rotation axis, and air-flow to be level flow into is upwards extruded, therefore the design of fan blade must be structure complicated, that the spiral change is curved, not only manufacturing is complicated, cost is high, and the size of impeller is difficult to reduce in the situation of large flow.

The model utility content

The utility model is in order to overcome above-mentioned defective of the prior art, by centrifugal impeller structure is set, to improve the efficient of calming the anger of impeller, keep the size of impeller less, improve the applicability of fan, reducing simultaneously the cost of equipment.

For achieving the above object, it is a kind of without blade fan that the utility model provides, it comprises the air channel with annular exhaust outlet, also comprise: the blower fan of calming the anger, it has receded disk impeller, and impeller is installed in the casing without blade fan, and casing has centrifugal structure, casing has into and out of the air port, and the exhaust outlet of casing is connected with the intake grill in described air channel; Drive motor, its rotating shaft is fixedly connected with impeller, is used for drives impeller and rotates; The annular exhaust outlet in casing intake grill, impeller, casing exhaust outlet, air inlet of air duct and air channel sequentially is communicated with and consists of without the complete air inlet/outlet passage of blade fan.

In the technique scheme, receded disk impeller is the Circular Cylindrical Thin Shells body structure, and the vane rings perimeter surface is established centrifugal blade.

In the technique scheme, impeller quantity can be two, is divided into the machine shaft two ends.

In the technique scheme, impeller quantity can also be one, is located at machine shaft one end.

In the technique scheme, have volute section in the casing, the volute section exhaust outlet docks with air inlet of air duct vertically upward by guide plate.

In the technique scheme, the joint in casing and air channel is provided with wind scooper, and wind scooper has fixedly flabellum, is anchored on casing exhaust outlet or air inlet of air duct place, and air-flow process fixedly flabellum rear screw enters described air channel.

In the technique scheme, bottom of shell is provided with fixed base, and base has pitch regulation groove and circular arc guiding face, uses the wind axis line and can do the pitching angle adjustment.

In the technique scheme, the casing rear portion is provided with sucker or fixing clamp, and sucker or fixing clamp are connected with casing by the link arm of adjustable horizontal, vertical angle.

In addition, the air channel is first, second collar that mutually is socketed, the exhaust outlet in air channel can be designed to the slit of annular, tool is at regular intervals overlapping between the corresponding wind path wall of the open end of annulus, first collar and second collar, and the air-flow that this design can be guided in the air channel blows out along the direction of needs; Above-mentioned annulus can be designed as up-small and down-big grading profile.Compared with prior art, the utlity model has following beneficial effect:

1, by centrifugal impeller structure is set, improves the efficient of calming the anger of impeller, keep the size of impeller less, reduce simultaneously the cost of equipment;

2, the wind scooper of volute section and joint, air channel is so that the air-flow of shunting after entering the air channel is even;

3, the end suction port of volute section can be controlled at the intake grill of blower fan the direction of setting, is beneficial to be unfavorable for that at narrow space the air intake place uses.

4, consist of the annulus grading structure of exhaust outlet so that the air output of whole annular passage is uniform and stable;

5, air-flow sprays from the slit, forms a kind of underbalance effect, and near the air the annulus is attracted and is combined into a cylindrical wind post and no longer is an annular solar or lunar halo, has improved the travelling comfort of human feeling's air-flow.

Description of drawings

Fig. 1 is that the utility model is without blade fan embodiment 1 exploded perspective view (bilobed wheel);

Fig. 2 is that the utility model is without blade fan embodiment 1 main sectional view (showing the internal structure of casing);

Fig. 3 is that the A-A of Fig. 2 is to cutaway view Amplified image;

Fig. 4 is that the utility model is without the sectional structure chart of blade fan impeller part;

Fig. 5 is that the utility model is without blade fan embodiment 1 exhaust outlet gradual change schematic representation;

Fig. 6 is the stereogram (adopting the sucker base mode) after the utility model is installed without blade fan embodiment 1;

Fig. 7 is the stereogram (adopting fixing clamp base mode) after the utility model is installed without blade fan embodiment 1;

Fig. 8 is that the utility model is without blade fan embodiment 2 internal structure plan view (single impeller).

The reference character that marks in the above accompanying drawing is respectively:

The 1-casing, 11-outer shell layer, 12-intake grill, 13-guide plate, the 14-draw-in groove, 2-drive motor, 3-impeller, 32-blade, the 4-air channel, 4A-first collar, 4B-second collar, 41-wind path wall, the 5-wind scooper, 51-flabellum, 52-frame, the 6A-base, 6A1-regulating tank, 6A2-guiding face, the 6B-sucker, 6C-fixing clamp, 61-casing fixing part.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.

Embodiment 1

Shown in Fig. 1-4, of the present utility model without blade fan, comprise the air channel 4 with exhaust outlet and the blower fan of calming the anger that is connected with air channel 4.Wherein, the blower fan of calming the anger has receded disk impeller 3, impeller 3 is installed in the casing 1, housing part has scroll casing shape structure (Fig. 4), the exhaust outlet of casing 1 is connected with the intake grill in air channel 4, the rotating shaft of drive motor 2 is fixedly connected with impeller 3, drives impeller 3 is rotated, the impeller 3 of blower fan, drive motor 2 integral installations in casing 1 (Fig. 2), the outside of casing 1 also has the outer shell layer 11 (Fig. 1) of definite shape, outer shell layer 11 is fastenedly connected with the casing exocentric structure, makes casing 4 have the form structure suitable with concrete installation position.Air channel 4 is structure (i.e. the first collar 4A and second collar 4B of two annulars, referring to Fig. 1) be socketed to form and form cavity, air channel 4 behind the suit is provided with the slit (referring to Fig. 3) that can pass through for the air-flow from blower fan at socket place one end of two collars, this slit is positioned at the inner surface of the annular integral air duct 4 behind the suit, the integral body in slit also in the form of a ring, consist of the exhaust outlet in air channel, wind path wall 41 tools of gap opening end overlapping (referring to Fig. 3) at regular intervals, the design in this wind path wall and slit can be guided air channel 4 interior air-flows and be blown out along certain blowing direction (being the direction of arrow among Fig. 3).

Further shown in Fig. 1-4, receded disk impeller 3 quantity are two, divide the two ends that are located at drive motor 2, and impeller 3 is the Circular Cylindrical Thin Shells body structure, and its ring perimeter surface is established centrifugal blade 32, and the intake grill of impeller 3 is arranged at the two ends of cylindrical shell; The rotating shaft of drive motor 2 is stretched out from the two ends of motor and is stretched into casing 1, respectively with casing in impeller 3 be fastenedly connected.The air-flow direction of arrow along Fig. 4 under the driving of impeller 3 that enters from the intake grill level of casing 1 enters annular passage 4, and then vertically blows out by the annulus shown in Fig. 3.In order to realize entering the air-flow guiding in air channel, the exhaust outlet place of casing 1 by guide plate 13 vertically upward with the intake grill in air channel 4 connect (referring to Fig. 2).Casing 1 is provided with wind scooper 5 (referring to Fig. 1,2) with the joint in air channel 4, wind scooper 5 has the fixedly flabellum 51 around the wind scooper axis, wind scooper 5 is fixed in casing exhaust outlet and air inlet of air duct place, the frame 52 of wind scooper embeds in the draw-in groove 14 of casing exhaust outlet, air-flow process fixedly flabellum 51 rear screws enters air channel 4, so that it is more even to enter the gas of air channel 4 rear shuntings.

The on-way resistance that causes according to the difference of air channel distance, air channel shape around the aforementioned slit of the annular exhaust outlet of air channel 4 inwalls, the difference of local resistance and can adjust, the seam shape of present embodiment is up-small and down-big grading profile, and this design can make the air output of annular exhaust outlet uniform and stable (referring to Fig. 5).

Of the present utility model is portable without blade fan, so its supporting base can be designed to the structure of various ways.As shown in Figure 1, can or inhale on smooth desktop or other smooth surface by mounting base 6A placement without blade fan, base has pitch regulation groove 6A1 and circular arc guiding face 6A2, uses the wind axis line and can do the pitching angle adjustment; As shown in Figure 6, can also fix at casing 1 rear portion a link arm, end at link arm arranges sucker base 6B, and link arm has the activity adjustment rotating shaft that horizontally rotates with vertical rotary, and this mounting structure can will be fixed on without blade fan on the vertical smooth flat; As shown in Figure 7, fixing clamp 6C can also be set at the end of link arm.

Embodiment 2

Embodiment 2 as shown in Figure 8, be that with embodiment 1 difference fan only has single blower fan and coupled drive motor 2, blower fan only has single intake grill, is applicable to less the using without blade fan of air quantity requirement, and its balance is not as good as two blower fan structures.Fan casing can be pegged graft by integrated casing fixing part 61 and base and be realized being connected and the adjusting pitch angle.

The utility model is by arranging centrifugal impeller structure, but the efficient of calming the anger of Effective Raise impeller keeps the size of impeller less, reduces simultaneously the cost of equipment; The design of the wind scooper of volute section and joint, air channel is to enter the air-flow of shunting behind the air channel more even; The grading structure of duct outlet is so that the air output of whole annular passage is more uniform and stable; Air-flow sprays from the slit, forms a kind of underbalance effect, and near the air the annulus is attracted and is combined into a cylindrical wind post and no longer is an annular solar or lunar halo, has improved the travelling comfort of human feeling's air-flow; The end suction port of volute section can be controlled at the intake grill of blower fan the direction of setting, is beneficial to be unfavorable for that at narrow space the air intake place uses.

More than disclosed only be two specific embodiments of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.

Claims

1. one kind without blade fan, comprises the air channel with annular exhaust outlet, it is characterized in that, also comprises:

The blower fan of calming the anger, it has receded disk impeller, and described impeller is installed in the casing without blade fan, and casing has centrifugal structure; Casing has into and out of the air port, and the exhaust outlet of casing is connected with the intake grill in described air channel;

Drive motor, its rotating shaft is fixedly connected with described impeller, is used for drives impeller and rotates;

The annular exhaust outlet in described casing intake grill, impeller, casing exhaust outlet, air inlet of air duct and described air channel sequentially is communicated with and consists of without the complete air inlet/outlet passage of blade fan.

2. according to claim 1 without blade fan, it is characterized in that described receded disk impeller is the Circular Cylindrical Thin Shells body structure, the vane rings perimeter surface is established centrifugal blade.

3. according to claim 2 without blade fan, it is characterized in that described impeller quantity is two, is divided into the machine shaft two ends.

4. according to claim 2 without blade fan, it is characterized in that described impeller quantity is one, be located at machine shaft one end.

According to claim 1 in 4 any one described without blade fan, it is characterized in that having volute section in the described casing, described volute section exhaust outlet docks with described air inlet of air duct vertically upward by guide plate.

6. according to claim 5 without blade fan, it is characterized in that the joint in described casing and air channel is provided with wind scooper, wind scooper has fixedly flabellum, be anchored on casing exhaust outlet or air inlet of air duct place, air-flow process fixedly flabellum rear screw enters described air channel.

According to claim 1 in 4 any one described without blade fan, it is characterized in that described bottom of shell is provided with fixed base, base has pitch regulation groove and circular arc guiding face, uses the wind axis line and can do the pitching angle adjustment.

According to claim 1 in 4 any one described without blade fan, it is characterized in that described casing rear portion is provided with sucker or fixing clamp, described sucker or fixing clamp are connected with casing by the link arm of adjustable horizontal, vertical angle.