CN202381366U

CN202381366U - Bladeless fan

Info

Publication number: CN202381366U
Application number: CN2011204414031U
Authority: CN
Inventors: 岑建力
Original assignee: Yuyao HuaChang Electrical Appliance Manufacture Co Ltd
Current assignee: Yang Dingping
Priority date: 2011-11-09
Filing date: 2011-11-09
Publication date: 2012-08-15
Anticipated expiration: 2021-11-09

Abstract

The utility model discloses a bladeless fan comprising an air flue, an air injection fan and a drive motor. The air flue is formed by splicing a first lantern ring and a second lantern ring, the integral air flue after splicing is in a circular shape, one end of a splicing port is provided with a gap which is in an integral annular shape, and the gap is positioned at the inner side wall of the air flue to form an air outlet of the air flue. The air injection fan is provided with a centrifugal impeller which is installed in a housing of the bladeless fan, an air inlet of the housing corresponds to an air inlet of the impeller, and an air outlet of the housing is connected with the air inlet of the air flue. A revolving shaft of the drive motor is fixedly connected with the impeller, and the drive motor is used for driving the impeller to rotate. The air inlet of the housing, the impeller, the air outlet of the housing, the air inlet of the air flue and the annular gap are sequentially communicated and form an integral air inlet and outlet channel of the bladeless fan. In the bladeless fan, through the arranged centrifugal impeller structure, the air injection efficiency of the impeller is improved, the relative smaller size of the impeller is kept, the applicability of the fan is improved, and the cost of the equipment is reduced. In addition, due to the gradually changed air outlet gap of the air flue, the fan has uniform air outlet performance.

Description

A kind of no blade fan

Technical field

The utility model relates to a kind of fan, relates in particular to a kind of no blade fan.

Background technique

The fan that has fan blade need be provided with the protecting wire net of cage shape in use, and 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 drive the no blade fan of air-flow through blower fan; What existing no blade fan adopted is the single impeller structure; The shortcoming of existing technology is that impeller horizontally rotates around vertical rotation axis, and air-flow is the upwards extrusion of level inflow quilt, so the design of fan blade must be a structure complicated, that spiral becomes the approximate axial-flow blower of bending; Not only manufacturing is complicated, cost is high, and the size of impeller is difficult to reduce under the situation of big flow.

The model utility content

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

For realizing above-mentioned purpose, the utility model provides a kind of no blade fan, comprising: the air channel; Be spliced by first collar and second collar; Its inside, splicing back is cavity, and integral body is ring, and an end of splicing interface is provided with whole ringwise slit; The slit is positioned at the madial wall of annular passage, constitutes the exhaust outlet in air channel; The blower fan of calming the anger, it has receded disk impeller, and impeller is installed in the no blade fan casing, and casing has centrifugal structure, and the exhaust outlet of casing portion docks with the intake grill in air channel each other; Drive motor, its rotating shaft is fixedly connected with impeller, is used for drives impeller and rotates; The intake grill of casing, impeller, casing exhaust outlet, air channel intake grill and said annulus are communicated with in proper order and constitute the complete turnover wind passage of no blade fan.

Wherein, tool is at regular intervals overlapping between the corresponding wind path wall of the open end in slit, first collar and second collar, and the air-flow that is used to guide in the air channel blows out along the direction of needs.The annulus can be up-small and down-big gradual change shape as required.

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

Wherein, impeller quantity can be two, is divided into the corresponding site in machine shaft two ends, the casing; Impeller quantity also can be one, is located at machine shaft one end.

Wherein, The casing exhaust outlet docks with the air channel intake grill through guide plate vertically upward, and the joint in casing and air channel is provided with wind scooper, and wind scooper has fixedly flabellum; Wind scooper is fixedly connected with the exhaust outlet of casing or the intake grill in air channel, and air-flow process fixedly flabellum rear screw gets into the air channel.

Wherein, the outside of casing can also have the outer shell layer of definite shape, and outer shell layer and described casing exocentric structure are fastenedly connected or are one-body molded, and the casing outside is had and the suitable form structure in concrete installation position.

Wherein, bottom of shell can be 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; Also can establish sucker or fixing clamp at the casing rear portion, sucker or fixing clamp are connected with casing through the link arm of can regulate level, vertical angle.

Compared with prior art, the utlity model has following beneficial effect:

1, through the receded disk impeller structure is set, improves the efficient of calming the anger of impeller, keep the less relatively size of impeller, reduce the cost of equipment simultaneously;

2, the air-flow of shunting behind the feasible entering of the wind scooper of volute section and joint, the air channel air channel is even;

3, the annulus grading structure of formation exhaust outlet makes that the air output in full annular air channel is uniform and stable;

4, 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.

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

Description of drawings

Fig. 1 is the exploded perspective view (bilobed wheel) that the utility model does not have blade fan embodiment 1;

Fig. 2 is the main sectional view (showing the internal structure of casing) that the utility model does not have blade fan embodiment 1;

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

Fig. 4 is the sectional structure chart that the utility model does not have blade fan impeller part;

Fig. 5 is the exhaust outlet gradual change schematic representation that the utility model does not have blade fan embodiment 1;

Fig. 6 is that the utility model does not have the stereogram (adopting the sucker base mode) after blade fan embodiment 1 installs;

Fig. 7 is that the utility model does not have the stereogram (adopting fixing clamp base mode) after blade fan embodiment 1 installs;

Fig. 8 is the internal structure plan view (single impeller) that the utility model does not have blade fan embodiment 2.

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

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

Embodiment

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

Embodiment 1

Shown in Fig. 1-4, the no blade fan of the utility model comprises 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, and 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, and the rotating shaft of drive motor 2 is fixedly connected with impeller 3, and 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, and outer shell layer 11 is fastenedly connected with the casing exocentric structure, and casing 4 is had and the suitable form structure in concrete installation position.Air channel 4 is structure (i.e. 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 at socket place one end of two collars can supply the slit (referring to Fig. 3) crossed from the air communication of blower fan; This slit is positioned at the inner surface in the annular whole air channel 4 behind the suit, and the integral body in slit constitutes the exhaust outlet in air channel also in the form of a ring; 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 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 direction of arrow of the air-flow Fig. 4 in the driving lower edge of impeller 3 that gets into from the intake grill level of casing 1 gets into annular passage 4, and then vertically blows out through the annulus shown in Fig. 3.In order to realize getting into the air-flow guiding in air channel, the exhaust outlet place of casing 1 through 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 channel intake grill place; The frame 52 of wind scooper embeds in the draw-in groove 14 of casing exhaust outlet, and air-flow process fixedly flabellum 51 rear screws gets into air channel 4, and the gas that makes 4 backs, entering air channel shunt is more even.

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

The no blade fan of the utility model is portable, so its supporting base can be designed to the structure of multiple mode.As shown in Figure 1, no blade fan can or be inhaled on smooth desktop or other smooth surface through mounting base 6A placement, and 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 a link arm at casing 1 rear portion; End at link arm is provided with sucker base 6B, and link arm has to horizontally rotate with the activity of vertical rotation regulates rotating shaft, and this mounting structure can be fixed on no 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 is as shown in Figure 8; Be that with embodiment 1 difference fan only has single blower fan and the coupled drive motor that connects 2; Blower fan only has single intake grill, is applicable to the less no blade fan of air quantity requirement is used, and its balance is not as good as two blower fan structures.Fan casing can be pegged graft through integrated casing fixing part 61 and base and realized being connected and the can regulate luffing angle.

The utility model can effectively improve the efficient of calming the anger of impeller through the receded disk impeller structure is set, and keeps the less relatively size of impeller, reduces the cost of equipment simultaneously; The air-flow of shunting behind the feasible entering of the wind scooper design air channel of volute section and joint, air channel is more even; The grading structure of air channel exhaust outlet makes that the air output in full annular air channel 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 that the narrow and small air intake place that is unfavorable for uses in the space.

More than disclosed two specific embodiments that are merely the utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into the protection domain of the utility model.

Claims

1. a no blade fan is characterized in that, comprising:

The air channel is spliced by first collar and second collar, and its inside, splicing back is cavity, and integral body is ring, and an end of splicing interface is provided with whole ringwise slit, and said slit is positioned at the madial wall in air channel, constitutes the exhaust outlet in air channel;

The blower fan of calming the anger, it has receded disk impeller, and said impeller is installed in the casing of no 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 said air channel;

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

Said casing intake grill, impeller, casing exhaust outlet, air channel intake grill and said annulus are communicated with in proper order and constitute the complete turnover wind passage of no blade fan.

2. no blade fan according to claim 1 is characterized in that, tool is at regular intervals overlapping between the corresponding wind path wall of the open end of said annulus, first collar and second collar, and the air-flow that is used to guide in the air channel blows out along the direction of needs.

3. no blade fan according to claim 2 is characterized in that, said annulus is up-small and down-big gradual change shape.

4. according to any described no blade fan in the claim 1 to 3, it is characterized in that said receded disk impeller is the Circular Cylindrical Thin Shells body structure, the vane rings perimeter surface is established centrifugal blade.

5. no blade fan according to claim 4 is characterized in that, said impeller quantity is two, is divided into the machine shaft two ends.

6. no blade fan according to claim 4 is characterized in that, said impeller quantity is one, is located at machine shaft one end.

7. according to any described no blade fan in the claim 1 to 3, it is characterized in that said casing exhaust outlet docks with said air channel intake grill through guide plate vertically upward.

8. no blade fan according to claim 7; It is characterized in that the joint in said casing and air channel is provided with wind scooper, wind scooper has fixedly flabellum; Be anchored on casing exhaust outlet or air channel intake grill place, air-flow process fixedly flabellum rear screw gets into said air channel.

9. no blade fan according to claim 1 is characterized in that said 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.

10. no blade fan according to claim 1 is characterized in that, said casing rear portion is provided with sucker or fixing clamp, and said sucker or fixing clamp are connected with casing through the link arm of can regulate level, vertical angle.