CN202338473U

CN202338473U - Bladeless fan

Info

Publication number: CN202338473U
Application number: CN2011203634570U
Authority: CN
Inventors: 刘向星
Original assignee: 刘向星
Current assignee: Hu Xinzhen
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-07-18
Anticipated expiration: 2021-09-26

Abstract

The utility model discloses a bladeless fan which comprises a base, a foundation support arranged on the base and a cylindrical air outlet ring, wherein the air outlet ring is provided with an annular inner cavity, the inner wall of the rear end of the air outlet ring is provided with an annular opening facing towards the front end, the foundation support comprises a shell and an air supplying device arranged in the shell, the upper surface of the shell is provided with a first air outlet, the outer wall of the air outlet ring is provided with a first air inlet matched with a through hole, the air outlet ring is clamped on the foundation support, the first air outlet is opposite to the first air outlet, and the base is internally provided with a control circuit board for controlling the air supplying device. By using the wall attaching function of the air outlet ring, air is blown from the inner wall of the air outlet ring, thus the bladeless fan ensures that the quantity of blown air is more uniform, has low noise and is convenient to assemble.

Description

No blade fan

Technical field

The utility model relates to electric fan, and being specifically related to does not have blade fan.

Background technique

Electric fan is a kind of motoring flabellum rotation that utilizes, and reaches the household electric appliance that make air quicken circulation, is mainly used in cooling and heatstroke-eliminating and ventilating air, is widely used in family, office, shop, hospital and hotels and other places.

Existing electric fan mainly is made up of parts such as a fan assembly, fan blade, guard and control gear, and wherein, the fan head comprises motor, front and rear cover and the wind pushing mechanism etc. of shaking the head; Therefore; Shortcomings such as the fan head part assembling of existing electric fan is complicated, and exists noise bigger than normal, and wind-force is big inadequately.

The model utility content

The utility model technical problem to be solved is the fan head part assembling complicacy that solves electric fan, and exists noise bigger than normal, the problem that wind-force is big inadequately.

In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted provides a kind of no blade fan; The pedestal and cylindraceous that comprises base, is arranged on the base goes out vane, saidly go out vane and have an annular cavity, and the inwall of rear end is provided with the annular opening towards front end; Said pedestal comprises housing and the blast device that is built in the said housing; The upper surface of said housing is provided with first exhaust outlet, and the said outer wall that goes out vane is provided with first intake grill suitable with said through hole, saidly goes out vane and is installed on the said pedestal; And said first intake grill is relative with said first exhaust outlet, is provided with the control circuit board of the said blast device of control in the said base.

In such scheme; Saidly go out vane and form by the ring lining cylindric lid outer with being set in said ring lining; Gap between the outer wall of said ring lining and the said cover body forms said annular cavity; The rear wall of said annular cavity is rearwardly projecting arc, and it is pre-large post-small horn-like that the inwall of said ring lining is, and said lid and said ring lining clamp at outlet air end and be one.

In such scheme, said ring lining and said lid are eccentric to be provided with.

In such scheme, the axis of said ring lining be positioned at said lid axis directly over.

In such scheme, said base is connected through the cross universal rotating shaft with said pedestal, is provided with second motor in the said base, and the motor shaft of said second motor passes said base and is connected with said pedestal.

In such scheme; Said blast device comprises fixing frame, first motor and is fixed on the turbofan on the motor shaft of said first motor; Said fixing frame is fixed on the inwall of said housing, and said first motor is fixed on the said fixing frame, and said housing is provided with some second intake grills; Be fixed with Inlet Network on said second intake grill, the motor shaft of said first motor is obliquely installed.

In such scheme, the intake grill place of said turbofan is fixed with the intake grill guard.

In such scheme, the intake opening on the said Inlet Network varies in size, and non-uniform Distribution.

In such scheme; The left and right sidewall of said first exhaust outlet extends upward respectively and forms the left and right extension part of going up; Left and right going up on the right side of extension part, the left madial wall is respectively equipped with strip groove; The left and right sidewall of said first intake grill extends to form left and right lower extension respectively downwards, is respectively equipped with on the left and right outer side wall of left and right lower extension and the left and right suitable bar shaped fin of going up on the extension part of strip groove, and said fin is inserted in the said groove.

In such scheme, also comprise the Wireless remote control operation panel that is used to control said control circuit board.

The utility model, that utilizes out vane attaches the wall effect, and wind is blown out along the inwall that goes out vane, can make the air quantity of producing by boasting more even, and noise is low and easy to assembly.

Description of drawings

Fig. 1 is the perspective view of the utility model;

Fig. 2 is the decomposition texture schematic representation of base;

Fig. 3 is the perspective view of pedestal;

Fig. 4 is the decomposition texture schematic representation of pedestal;

Fig. 5 is the side cut away view of the utility model;

Fig. 6 is the front section view of the utility model;

Fig. 7 is the perspective view that vane;

Fig. 8 is the worm's eye view of base.

Embodiment

Below in conjunction with accompanying drawing the utility model is made detailed explanation.

As shown in Figure 1, the utility model comprises that base 1, pedestal 2 and cylindric goes out vane 3, and wind blows out along the direction of arrow from going out vane 3.

Referring to Fig. 2, base 1 comprises the loam cake 11 of drain pan 14 spiral-locks on drain pan 14 again, and fixedly in the drain pan 14, the motor shaft of second motor 12 upwards passes loam cake 11 backs and is connected with pedestal 2 respectively for the control circuit board 13 and second motor 12.The bottom surface of base 1 is provided with annular groove, is laid with three ply-yarn drills 15 (as shown in Figure 8) on the sidewall of annular groove, and power line can twine around the sidewall of annular groove and be stuck in successively in three ply-yarn drills 15, is convenient to take in power line.

Again referring to Fig. 3, Fig. 4; Pedestal 2 comprises housing and the blast device that is built in the said housing; Housing is fastened with lower casing 22 by upper casing 21 and forms; The left and right sidewall that the upper surface of upper casing 21 is provided with first exhaust outlet, 23, the first exhaust outlets 23 extends upward the left and right extension part 26 of going up of formation respectively, and left and right going up on the right side of extension part 26, the left madial wall is respectively equipped with strip groove 27.Also be provided with operation panel 24 on the upper casing 21, make control circuit board 13 produce control signal corresponding through operation panel 24, the operation of the no blade fan of control and the adjusting of wind direction and wind-force.

Blast device comprises fixing frame 31, first motor 34 and is fixed on the turbofan 35 on the motor shaft of first motor 34; Fixing frame 31 is fixed on the inwall of lower casing 22; First motor 34 is fixed on the fixing frame 31 through electric machine support 33; The motor shaft of first motor 34 is obliquely installed, and the top of first motor 34 is provided with wind-guiding leaf 32, and wind-guiding leaf 32 is fixed on the fixing frame 31.The intake grill place of turbofan 35 is fixed with air intake mouth mask 38, and turbofan 35 is fixed on the fixing frame 31 through transition ring 37, and air intake mouth mask 38 can further reduce noise.Lower casing 22 is provided with two second intake grills, is fixed with Inlet Network 25 on second intake grill, the size of the intake opening on the Inlet Network 25 and be distributed as irregular setting, and that this design can improve is distinguished and admirable, the reduction noise.

Referring to Fig. 1,5,6 and 7, go out vane 3 and be made up of ring lining 41 and the lids 42 that are set in outside the ring lining 41 again, the gap between the two forms an annular cavity 43, and the rear wall internal surface of inner chamber 43 is the arc of protrusion backward.It is pre-large post-small horn-like that the inwall of ring lining 41 is, ring lining 41 and lid 42 eccentric settings, in the present embodiment, the axis of ring lining 41 be positioned at lid 42 axis directly over.Since ring lining 41 and lid 42 eccentric settings, narrow face width down above the eccentric circle, and wind-force is blown toward the top by the below; If just round, along with flowing of wind, wind has gradually reduced during to the top; Eccentric circle then because up-narrow and down-wide, cause on the air pressure stream trend, so air-flow can be even relatively.Lid 42 clamps at outlet air end with ring lining 41 and is one, in the rear end that goes out vane 3, forms the annular opening 44 of opening towards outlet air end between ring lining 41 and the lid 42.The lower end of lid 42 is provided with first intake grill 45; The left and right sidewall of first intake grill 45 extends to form left and right lower extension 46 respectively downwards, is respectively equipped with on the left and right outer side wall of left and right lower extension 46 and the left and right strip groove 27 suitable bar shaped fins of going up on the extension part 47.Through cooperating of bar shaped fin 47 and strip groove 27, front and back push-and-pull lid 42 just can be realized out the loading and unloading of vane 3 and pedestal 2.

Base 1 is connected through the cross universal rotating shaft with pedestal 2; Through the cross universal rotating shaft; Pedestal 2 can carry out 360 degree and rotate in horizontal plane under the driving of second motor 12, can also adjust the upper and lower air-out angle of vane 3 simultaneously, promptly realizes out the pitching of vane 3.

The utility model has utilized attaches wall effect (Coanda effect); By ring lining 41 and lid 42 splicings form one have a 2-5MM annular opening 44 go out vane 3; So the inner wall surface formation at ring lining 41 attaches wall effect (Coanda effect), wind evenly blows out along the inwall of ring lining 41.And, because therefore ring lining 41 and lid 42 eccentric settings, can make the air quantity of producing by boasting more even.

Specify the working principle of the utility model below in conjunction with Fig. 5 and Fig. 6, the direction of arrow is represented the wind flow direction among the figure.

The major function of pedestal 2 is to be sent to out vane 3 to suction of the wind of outside and compression acceleration generation air-flow.First motor, 34 energising backs drive turbofan 35, and (turbofan 35 has nine blades; The spacing of each blade is irregular; Each blade is arranged by the arc of same direction and is guided wind speed) high-speed rotation, the air-flow that is produced flows into out the annular cavity 23 in the vane 3 through first exhaust outlet 23, first intake grill 45, at this moment; Form negative pressure in the pedestal 2, pedestal 2 outer air get into from second intake grill 25.Enter into the air-flow of annular cavity 23, flowed out by annular opening 44, owing to attach the wall effect, air-flow can evenly blow out along the inwall of ring lining 41.

In the utility model, operation panel 24 can adopt wireless design, is adsorbed on the pedestal 2 with magnet, makes more convenient to operate.

Compare with existing design, the utlity model has following advantage:

(1), the eccentric setting of ring lining that go out vane 3, air quantity is blown out more equably.

(2), go out vane 3 and pedestal 2 and adopt push-pull configurations to be connected, make load and unload easy.

(3), Inlet Network 25 adopts irregular pitch-row to arrange, and size is inhomogeneous, can improve distinguished and admirable, reduction noise.

(4), the intake grill place of turbofan is provided with guard, can reduce noise.

(5), base and pedestal adopt universal turning shaft structure, can realize two-way rotation simultaneously.

(6), base internal card line structure, can electric wire be built in the base, make product more portable.

(7), operation panel can the remote control external application, also can be fixed on the fan, need not built-in button, and is easy to operate.

(8), can built-in rechargeable battery, easy to use.

The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the utility model.

Claims

1. do not have blade fan, comprise base and be arranged on the pedestal on the base, it is characterized in that; Also comprise the vane that goes out cylindraceous, saidly go out vane and have an annular cavity, and the inwall of rear end is provided with the annular opening towards front end; Said pedestal comprises housing and the blast device that is built in the said housing; The upper surface of said housing is provided with first exhaust outlet, and the said outer wall that goes out vane is provided with first intake grill suitable with said through hole, saidly goes out vane and is installed on the said pedestal; And said first intake grill is relative with said first exhaust outlet, is provided with the control circuit board of the said blast device of control in the said base.

2. no blade fan as claimed in claim 1; It is characterized in that; Saidly go out vane and be made up of the ring lining cylindric lid outer with being set in said ring lining, the gap between the outer wall of said ring lining and the said cover body forms said annular cavity, and the rear wall of said annular cavity is rearwardly projecting arc; It is pre-large post-small horn-like that the inwall of said ring lining is, and said lid and said ring lining clamp at outlet air end and be one.

3. no blade fan as claimed in claim 2 is characterized in that, said ring lining and said lid are eccentric to be provided with.

4. no blade fan as claimed in claim 3 is characterized in that, the axis of said ring lining be positioned at said lid axis directly over.

5. no blade fan as claimed in claim 1 is characterized in that, said base is connected through the cross universal rotating shaft with said pedestal, is provided with second motor in the said base, and the motor shaft of said second motor passes said base and is connected with said pedestal.

6. no blade fan as claimed in claim 1; It is characterized in that said blast device comprises fixing frame, first motor and be fixed on the turbofan on the motor shaft of said first motor that said fixing frame is fixed on the inwall of said housing; Said first motor is fixed on the said fixing frame; Said housing is provided with some second intake grills, is fixed with Inlet Network on said second intake grill, and the motor shaft of said first motor is obliquely installed.

7. no blade fan as claimed in claim 6 is characterized in that, the intake grill place of said turbofan is fixed with the intake grill guard.

8. no blade fan as claimed in claim 6 is characterized in that the intake opening on the said Inlet Network varies in size, and non-uniform Distribution.

9. no blade fan as claimed in claim 1; It is characterized in that; The left and right sidewall of said first exhaust outlet extends upward respectively and forms the left and right extension part of going up; Left and right going up on the right side of extension part, the left madial wall is respectively equipped with strip groove; The left and right sidewall of said first intake grill extends to form left and right lower extension respectively downwards, is respectively equipped with on the left and right outer side wall of left and right lower extension and the left and right suitable bar shaped fin of going up on the extension part of strip groove, and said fin is inserted in the said groove.

10. no blade fan as claimed in claim 1 is characterized in that, also comprises the Wireless remote control operation panel that is used to control said control circuit board.