CN102817859A

CN102817859A - Electric fan with double wind-collecting wind wheels and blade-free air-blowing head

Info

Publication number: CN102817859A
Application number: CN2012103232942A
Authority: CN
Inventors: 胡国贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-01
Filing date: 2012-09-01
Publication date: 2012-12-12

Abstract

The invention discloses an electric fan with double wind-collecting wind wheels and a blade-free air-blowing head. The electric fan comprises a base, a main motor, a shaking motor, a lower shell, a first wind wheel, a first volute, the air-blowing head, a second volute and a second wind wheel, wherein a base of the air-blowing head is detachably connected with the upper part of a lower case; the four circles of the air-blowing head serve as hollow air flues; air inlet holes are formed on the lower shell; the first wind wheel is connected to one end of a main motor shaft by a first wind wheel safety device; the second wind wheel is connected to the other end of the main motor shaft by a second wind wheel safety device; the first volute is arranged outside the first wind wheel; the second volute is arranged outside the second wind wheel; one surface of the first volute is integrated and connected with one surface of the second volute; the main motor is arranged in the middle of a joint between the first volute and the second volute; an air collecting port is formed under the bottom of the air-blowing head; the first volute, the second volute, the main motor, the first wind wheel and the second wind wheel are integrated and then are arranged inside the lower shell; the base is movably connected with the lower end of the lower shell; and the shaking motor is arranged above the bottom of the base.

Description

Two wind wheel collection wind public attention blade-free electric fans

Technical field

The present invention relates to known various electric fans at present, particularly a kind of pair of wind wheel collection wind public attention blade-free electric fan needs air circulation to flow and the place of cooling to be applied in room, office or other quietlyer, more attractive in appearance.

Background technique

Known various electric fans comprise a blowing blade-free electric fan patent No. 200910154890.0 of I invent multi at present, all exist variety of issue, 1; Usually the principle of fan for cooling blowing is that driven by motor has the fan blade of several angle to rotate, and lets air circulation flow to take away the cooling device of heat, and this cooling device can be divided into two big types; A kind of is the leafy ceiling fan that fan blade is directly exposed to the outside; Another kind is that fan blade outside has the removable electric fan of safety cover, just our common table fan with land electric fan, the flow defective of cooling device of the air circulation of this two major types is that the air stream that the fan blade rotation produces can let the user feel inhomogeneous; This main cause is that fan blade inclined-plane cutting air produces wave air-flow result; Airflow noise is very noisy, and extremely not convenient in cleaning process, the volume of packing is difficult to dwindle; Safety for the people can not guarantee, and outward appearance is difficult to change traditional shape.2; The blowing of an I invent multi blade-free electric fan patent No. 200910154890.0 has solved above-mentioned electric fan to a certain extent and has had technological deficiency, but existing the noise decibel crosses high defective.

Summary of the invention

The present invention is directed to for this reason existing electric fan exist outer shape single, clean inconvenience, packaging volume is big; The blade-free electric fan patent No. 200910154890.0 noise decibels without a head of drying are crossed high technological deficiency, and a kind of two wind wheel collection wind public attention blade-free electric fans that reduce noise are provided.

In order to realize reducing noise and the blowing head has enough air quantity to blow out; Of the present invention pair of wind wheel collection wind public attention blade-free electric fan adopted technological scheme and comprised base, main motor, head-shaking motor, lower shell body, first wind wheel, first spiral case, blowing head, second spiral case, second wind wheel.

Further improve as the present invention; The blowing head is connected with a blowing base consubstantiality; A blowing base is connected with lower housing top is detachable, and the blowing head is to dwindle packaging volume with the detachable advantage that is connected in lower shell body upper end, and the blowing head can change and process difformity simultaneously; Blowing four circle are hollow air channels, and lower shell body has intake opening.

Further improve and optimization as the present invention; The two ends of main motor shaft are equipped with first wind wheel and second wind wheel respectively; Described first wind wheel is connected through the first wind wheel safety above the end of main motor shaft, and described second wind wheel is connected above the other end of main motor shaft through the second wind wheel safety.

As optimal design; First spiral case is equipped with in first wind wheel of the present invention outside, and second spiral case is equipped with in second wind wheel outside, and the one side of first spiral case is integrated and connected with the one side of second spiral case; The another side of first spiral case is first intake grill, and the another side of second spiral case is second intake grill.

As further improvement of the present invention, main motor is installed in the middle of first spiral case and the second spiral case joint, and first exhaust outlet of first spiral case and second spiral case, second exhaust outlet are integrated and form the collection air port, and the collection air port is installed in below the blowing head bottom.

As optimal design, be installed in the lower shell body the inside behind first spiral case and second spiral case, main motor, first wind wheel, second wind wheel integrated.

As optimal design, base and lower shell body lower end flexibly connect, and head-shaking motor is installed in above the base bottom.

Working principle of the present invention is such; Opening power master's electrical power rotates; Main motor rotates and also drives first wind wheel and the rotation of second wind wheel that the main motor output shaft two ends connect simultaneously; Because of the outside of first wind wheel and second wind wheel first spiral case and second spiral case are housed respectively, the one side of first spiral case is integrated and connected with the one side of second snail, and the another side of the another side of first spiral case and second snail is first intake grill and second intake grill; Cause first wind wheel and second wind wheel are under main motor high-speed rotation drives; Make air stream from the lower shell body intake grill, sucked by first wind wheel and second wind wheel from first intake grill and second intake grill respectively, simultaneously because of wind wheel and spiral case special construction and effect; Make by inhaled air under first wind wheel and the second wind wheel high-speed rotation; In first spiral case and second snail, be formed with the certain pressure air-flow, go out, have the certain pressure air communication to cross the collection air port and blow to a blowing hollow air channel from the first spiral case exhaust outlet and second exhaust outlet; Make blowing four circle have high wind to blow out, realized the purpose of two wind wheel collection wind public attention blade-free electric fans.

As further improvement of the present invention, adopt two wind wheel collection wind that airflow pressure is increased, but motor speed have certain decline, has so also reduced fan noise simultaneously.

When electric fan need be swung blowing, connect the head-shaking motor power supply, at this moment head-shaking motor rotates and drives and its connection gear or connecting rod rotation, has realized a blowing left-right rotation blowing purpose.

Description of drawings

Fig. 1 is an embodiment of the invention structure principle chart;

Embodiment

Comprise base 1, main motor 6, head-shaking motor 18, lower shell body 17, first wind wheel 3, first spiral case 7, blowing 10, the second spiral cases 13, second wind wheel 16 referring to a Fig. 1 the present invention blowing multiform blade-free electric fan.

Referring to Fig. 1; Blowing 10 is connected with a blowing base 11 consubstantialities, and blowing a base 11 and detachable connection of lower housing 17 tops are dried simultaneously and 10 can be changed and process difformity, and drying 10 4, to enclose be hollow air channel, and lower shell body has intake opening 2.

Referring to Fig. 1; Main motor 6: the two ends of axle are equipped with first wind wheel 3 and second wind wheel 16 respectively; Described first wind wheel 3 is connected through the first wind wheel safety 5 above the end of 6 in main motor, and described second wind wheel 16 is connected above the other end of 6 in main motor through the second wind wheel safety 14.

Referring to Fig. 1; First spiral case 7 is equipped with in first wind wheel of the present invention, 3 outsides; Second spiral case 13 is equipped with in second wind wheel, 16 outsides; The one side of first spiral case 7 is integrated and connected with the one side of second spiral case 13, and the another side of first spiral case 7 is that the another side of first intake grill, 4, the second spiral cases 13 is second intake grills 15.

Referring to Fig. 1; Main motor 6 is installed in the middle of first spiral case 7 and second spiral case, 13 joints, and first exhaust outlet 8 of first spiral case 7 and second spiral case, 13 second exhaust outlets 12 are integrated and form collection air port 9, and collection air port 9 is installed in below blowing 10 bottom.

Referring to Fig. 1; Be installed in lower shell body 17 the insides behind first spiral case 7 and second spiral case 13, main motor 6, first wind wheel 3, second wind wheel 16 integrated.

Referring to Fig. 1; Base 1 flexibly connects with lower shell body 17 lower ends, and head-shaking motor 18 is installed in above base 1 bottom.

Claims

1. a blowing multiform blade-free electric fan: comprise base (1), main motor (6), head-shaking motor (18), lower shell body (17), first wind wheel (3), first spiral case (7), blowing head (10), second spiral case (13), second wind wheel (16).

2. according to claims 1 said blowing multiform blade-free electric fan: blowing head (10) is connected with a blowing base (11) consubstantiality; A blowing base (11) and lower housing (17) the detachable connection of top; Blowing head (10) can change and process difformity simultaneously; Blowing head (10) four circles are hollow air channels, and lower shell body has intake opening (2).

3. according to claims 2 said blowings multiform blade-free electric fan: the two ends of main motor (6) axle are equipped with first wind wheel (3) and second wind wheel (16) respectively; Described first wind wheel (3) is connected through the first wind wheel safety (5) above the end of main motor (6) axle, and described second wind wheel (16) is connected above the other end of main motor (6) axle through the second wind wheel safety (14).

4. according to claims 3 said blowings multiform blade-free electric fan: first spiral case (7) is equipped with in first wind wheel (3) outside; Second spiral case (13) is equipped with in second wind wheel (16) outside; The one side of first spiral case (7) is integrated and connected with the one side of second spiral case (13); The another side of first spiral case (7) is first intake grill (4), and the another side of second spiral case (13) is second intake grill (15).

5. according to claims 4 said blowings multiform blade-free electric fan: main motor (6) is installed in the middle of first spiral case (7) and second spiral case (13) joint; First exhaust outlet (8) of first spiral case (7) is integrated with second spiral case (13) second exhaust outlets (12) and forms collection air port (9), and collection air port (9) is installed in below blowing head (10) bottom.

6. according to claims 5 said blowings multiform blade-free electric fan: be installed in lower shell body (17) the inside after first spiral case (7) and second spiral case (13), main motor (6), first wind wheel (3), second wind wheel (16) are integrated.

7. according to claims 6 said blowings multiform blade-free electric fan: base (1) flexibly connects with lower shell body (17) lower end, and head-shaking motor (18) is installed in above base (1) bottom.