CN2032272U

CN2032272U - Omnibearing electric fan

Info

Publication number: CN2032272U
Application number: CN 87214888
Authority: CN
Inventors: 代范伊
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-11-03
Filing date: 1987-11-03
Publication date: 1989-02-08

Abstract

The utility model discloses an omnibearing electric fan. The omnibearing electric fan can continuously blow in the close omnibearing scope (360 DEG) by the method of providing a set of blades to form a double-blade electric fan or making the blade into an annular centrifugal blade wheel which can rotate along the horizontal direction on the foundation of the prior electric fan. Not only one omnibearing electric fan can play the function of two electric fans but also the problem that the original electric fan gives people an uncomfortable feeling because operational mode of circulating and discontinuous wind blowing by head shaking is excellently improved. The utility model is suitable to be used for the public places or family, such as the office, the meeting room, the shops, etc.

Description

Comprehensive electric fan

The utility model is a kind of model utility that relates to the blowing scope that enlarges electric fan.

Electric fan is the lower powered axial-flow blower of a tool, though it has head-shaking device, in some occasion, many electric fans need be set apply use in the side of work simultaneously, both taking up space, many expenses fund more again.This monotony that can not adapt to different service conditions of electric fan is its a fly in the ointment.

The purpose of this utility model is to provide a kind of electric fan that can make the range expansion of blowing to comprehensive (360 °).

The utility model is by on the basis of existing electric fan, increases by one group of flabellum and becomes dual-vane electric fan or the flabellum of electric fan made and can imitate the method for carrying out the centrifugal electric fan of work in the mode of Fan fan to be realized.To the utility model be described in detail by five kinds of embodiments and accompanying drawing thereof below.

Fig. 1 is first kind of embodiment's a structural representation (overlooking)

Fig. 2 is second kind of embodiment's a structural representation (overlooking)

Fig. 3 is the third embodiment's a structural representation (side-looking)

Fig. 4 is the 4th kind of embodiment's a structural representation (side-looking)

Fig. 5 is the structural representation (facing the part) of the 4th kind of embodiment's flabellum protective housing

Fig. 6 is the 5th kind of embodiment's a structural representation (facing)

Embodiment's one head-swinging type double end electric fan

Referring to Fig. 1, on the basis of existing electric fan, make opposing thirty years of age double end electric fan.Promptly be equivalent to increase a covering device (motor, flabellum and guard shield thereof) behind more in addition at the motor 1 of existing electric fan.For making two motor synchronous and " shaking the head " in phase, do not establish oscillating mechanism in the motor 2 of a covering device that is increased, only need to get final product at same side one link rod 3 of two machines.The link rod 3 long distances that equal between two motor fulcrum A, B, its two ends fixed arm 4 and 5 corresponding two electric machine casings together are integral.Its two ends tie point C and D are movable tie point.When two motors were in the neutral position, ABCD was rectangular, and obviously, when motor 1 was shaken the head, when shaking the head synchronously by link rod 3 drive motors 2, ABCD then parallelogram did continuous transformation.Two cover flabellum devices of present embodiment also can be worked independently by a side that wherein has oscillating mechanism easily, and opposite side thereupon.

Present embodiment also can be made into fully independently two systems of the desirable any working state that does not need concerted action each other, i.e. two shared bases of electric fan.Unlikely collision was as the criterion when at this moment, the spacing of two motor fulcrum A and B was met with two protective housings.

Embodiment's two head-swinging type single head transmission dual-vane electric fans

Referring to Fig. 2, motor 1 drives the rotation of two Vane wheels through transmission one garden bevel gear tooth system 6.The sliding bearing 7 of flabellum wheel shaft is fixed on the end face of the base 8 that the housing with motor 1 combines as a whole, so biparting leaf can " be shaken the head " around fulcrum 9 in company with motor 1.It is the electric fan that 90 ° two flabellums install dorsad that motor and flabellum two between centers can be made into angle, also can be made into the electric fan of angle greater than 90 ° two flabellum neighboring devices.Need there be housing or outer cover in the upper-end surface of base 8.

Embodiment's three head-swinging type single head dual-vane electric fans

Referring to Fig. 3, on the basis of existing electric fan,, draw from the rear end of the worm screw 12 of oscillating mechanism with the rear end of the axle 10 of the rotor 11 of its head motor 1, respectively adorn one group of flabellum and guard shield thereof.Install dorsad because two groups of flabellums are coaxial, so the direction of the operating angle of two groups of flabellums should be opposite, simultaneously, the axial force that two groups of flabellums act in the rotating shaft when working is separately cancelled out each other.

Embodiment four is the biparting leaf desk fan of head-swinging type single head not

Referring to Fig. 4 and Fig. 5, present embodiment is on embodiment three basis, save " shaking the head " mechanism, other is at the anode of the protective housing of flabellum, install three ring-type baffle liners 13,14,15 that are toroidal additional, between baffle liner 13 is with 14 and 14 and 15, respectively form an annular guide channel that is diffused with different angle of deflection, also form the centre gangway of a diffused in the inboard of baffle liner 15, then form one in the outside of baffle liner 13 and can make the ring-type working area of air-flow to lateral deflection.Make the axial flow that comes out from flabellum flow out the equally distributed relatively soft wind that just can obtain in a big way, sending continuously through above-mentioned each interval respectively.

The centrifugal flabellum desk fan of embodiment's five vertical type ring-types

Referring to Fig. 6, motor 1 upright dressing is in the top of bearing 16, and rotating shaft 17 protrudes upward.Ring-type centrifugal fan impeller 18 is made hood configuration, cover on motor 1 and part bearing 16 around, cooperate several 4～6 of flabellum by the center hole on its top with axle 17 heads.Protective housing is made up of cover body 19 and cover cap 20 two-part, be fixed on the conjunction base 21 that is located at center, cover body 19 lower end near the base with matching 22 the top of bearing 16, protective housing is connected as a single entity with bearing, horizontal circumferential centerline with cover body 19 is a benchmark, each flatly is provided with 3 ring-type baffle liners 23 that promptly have suitable channelization angle that are bell mouth shape relatively symmetrically up and down, around cover body 19 some evenly distributed guide plates of radiation-like 24 that are is set vertically in addition.Present embodiment is in when work, and the mode that can simulate the Fan fan obtains 360 ° the soft wind of sending continuously from substantially horizontal that enough scopes are arranged.As the position, top of cover body 19 is suitably increased, and the in addition modification of outward appearance, cover cap 20 to be changed system into have moulding attractive in appearance again, bulb is loaded onto in inside, but then the double as light fixture uses.

The utlity model has following advantage: it not only electric fan be equivalent to two electric fans and use, and close at comprehensive continous blowing, so it can significantly improve the discontinuously people's that working method is given of blowing the sense of discomfort of taking turns that forms because shaking the head of original electric fan.

The utility model belongs to functional remodeling goods to existing product, produces easily. The outward appearance length dimension that will have the motor of electric fan for keeping working stability to need now suitably reduces, to keep Distance between Dual-blade is moderate, simultaneously, on the basis of the dynamic and static balance of controlling rotor and flabellum, the stationarity when keeping Dual-blade work.

Embodiment 3,4 of the present utility model does not need the pitch regulation part of electric fan head.Described ring-type centrifugal impeller and guard shield thereof, baffle liner, sheet all can be suppressed by light metal, or with the engineering plastics moulding.Between them with well-established law in conjunction with (injection moulding, inlay or weld).

The utility model is suitable for office, meeting room, reception room, shop commodity section and other public place to be used, and also is suitable for family and uses.Wherein embodiment 4,5 is particularly suitable for being placed on people's conference table in place relatively, the Office table, enjoys for many people.

Claims

A kind of comprehensive type electric fan is characterized in that:

1, the head of electric fan is equipped with biparting leaf device or the centrifugal fan impeller unit that can do the substantially horizontal rotation is housed;

2, the positive front end of flabellum protective housing is provided with some ring-type air-supply passages of being made up of some baffle liners that are toroidal.