CN201037475Y

CN201037475Y - Fan blade structure

Info

Publication number: CN201037475Y
Application number: CNU2007201465586U
Authority: CN
Inventors: 江照政; 江吉雄; 江意文
Original assignee: Xiequan Industry Co Ltd; JINJIABAO INDUSTRY Co Ltd
Current assignee: Xiequan Industry Co Ltd; JINJIABAO INDUSTRY Co Ltd
Priority date: 2007-05-08
Filing date: 2007-05-08
Publication date: 2008-03-19
Anticipated expiration: 2017-05-08

Abstract

The utility model relates to a fan blade structure, wherein, a blade arc annularly arranged between an upper disk seat body and a lower ring plate is composed of two circles with different diameters, and the upper half-section and the lower half-section of the blade are respectively provided with a main blade part with larger width area and an auxiliary blade part with smaller width area. The utility model is characterized in that the upper end and the lower end of the blade are fixed between the upper disk seat body and the lower ring plate with inclined state, and drainage holes through both sides are arranged on the main blade part and the auxiliary blade part, thus the air output of the fan blade is greatly increased, and the noise is effectively reduced.

Description

The fan blade structure

Technical field

The utility model is a kind of fan blade structure, refers to a kind of blade structure that can significantly be lifted out air quantity and reduce noise content especially at this.

Background technique

Tradition lampblack exhauster fan blade has roughly been distinguished two kinds in turbo type blade and louvered blade, yet after reality is used, find no matter these two kinds all have the great space of improving at exhaust air rate and noise content mode, particularly, the louvered blade is that the mat arc shaped blade produces suction, the single radian design of right therefore blade system's employing, and the bottom forms rectangular-shaped, so its fan blade suction is limited, simultaneously rectangular-shaped blade bottom is a big factor of noise formation more.

In view of this, the inventor develops the TaiWan, China patent application No. 090208310 " the blade structure improvement of lampblack exhauster ", and get permission patent right through substantive examination, this patent is through reality test proof, really there is significant progress the exhaust air rate and the noise content aspect of more previous two kinds of blade structures, yet the inventor is not with this complacency, discovery still has not attain improves part, especially the inventor finds that general blade ties up to blade upper semisection place in order to the main position of intercepting oil smoke, therefore the smoke evacuation usefulness of the blade of desire lifting still then must be improved at this characteristic.

So, the inventor actively makes great efforts research, through repeatedly improvement, structure is announced in the TaiWan, China patent application of redeveloping out No. 564927, it mainly is that blade is arranged between dish seat and following ring plate with " plumbness ", and utilize blade upper and lower half section each form the major and minor leaf portion of big and less wide cut area, and this blade forms an indent radian of working as, adopt the major and minor leaf portion design of different wide cut sizes by this blade, and can make wind inlet strengthen, can increase exhaust smoke level and can reduce wind and cut noise, promote whole performance and operational effect according to this.

The inventor finds that the blade of No. 564927 patent case structure is arranged between dish seat and following ring plate because of adopting " plumbness ", so the fan blade specific surface area is less, cause exhaust air rate to fail to increase to the optimum state, in addition, also causing wind to cut noise can't reduce to minimum, therefore, still must be improved again, so the utility model of redeveloping out.

The model utility content

Main purpose of the present utility model provides a kind of fan blade structure, can significantly be lifted out air quantity and reduce noise content.

To achieve these goals, the technical solution of the utility model is: a kind of fan blade structure, and it is made up of last dish-shaped pedestal, following ring plate and some curved arc blades;

Go up dish-shaped pedestal end face and have outer portion, and there is the shell chamber to constitute in this outer portion central position is recessed, following ring plate is symmetricly set in the outer portion below, form the containing space of a clitellum shape between following ring plate and last dish-shaped pedestal, and with branches such as some curved arc blades be installed on this containing space, blade forms the main lobe portion of big wide cut area and the accessory lobes portion of a less wide cut area respectively for upper and lower half section, is characterized in:

This blade upper/lower terminal system is being fixedly arranged in of a heeling condition goes up between dish-shaped pedestal and following ring plate, is provided with the conduction hole that runs through the two sides in this main lobe portion, accessory lobes portion.

Should go up dish-shaped pedestal outer portion and be provided with some slots in branches such as outer rim and inner edge position ground, slot direction of correspondence is different in twos for this, and this time ring plate has provided caulking groove going up dish-shaped pedestal outer rim slot position relatively; Blade tip is provided with the inserted block that can be fastened in the corresponding slot, and the bottom then is provided with the abaculus that can be fixedly arranged in corresponding caulking groove.

This shell chamber system provides motor to be installed with, and has provided sleeve in shell chamber bottom dead center position, provides motor spindle to penetrate, and ties by the lock of bolt, and what upward dish-shaped pedestal was concentric is the motor spindle driven rotary.

This time ring plate system is symmetrical in the outer fringe position of outer portion below, and a little more than bottom, shell chamber, bottom, shell chamber projects to down the ring plate below.

This blade radian system is made of two different circles footpaths, and this blade outer periphery radian is big than the inner circumference edge radian.

The outstanding external diameter of dish-shaped pedestal, following ring plate of this blade periphery system.

The outstanding ring plate internal diameter down of inner circumference edge bottom system of this accessory lobes portion and upwards and inside arcuation extend, the blade stage casing forms gradually large-area main lobe portion.

This blade inner circumference edge bottom is connected to the blade stage casing with convex arc, forms a convex arc degree between major and minor leaf portion inner circumference edge.

Useful technique effect of the present utility model is as follows:

1, the utility model is provided with the conduction hole that runs through this main lobe portion, accessory lobes portion two sides, make this conduction hole have the effect that the guiding oil smoke enters, so that reduce the impedance of blade when rotation, and can significantly promote the efficient of fan in rotation, in addition, this conduction hole can reduce the direct collision problem of blade between when rotation and oil smoke, is enough to reduce effectively noise;

2, blade upper/lower terminal system is being fixedly arranged in of a heeling condition and goes up between dish-shaped pedestal and following ring plate, thus can promote the rigidity of blade when rotating, and this is provided with the specific surface area that can increase blade, promotes fan according to this once more in the efficient of rotating;

3, bottom, shell chamber system projects to down the ring plate below, so can significantly increase the volume of shell chamber, make motor be enough to all be placed in wherein according to this, like this then can significantly reduce the volume of fan and motor combination, make being installed in the lampblack exhauster that the utility model can more not take up space.

Description of drawings

Fig. 1 is the elevational schematic view that the utility model decomposes a blade.

Fig. 2 is a combination elevational schematic view of the present utility model.

Fig. 3 is the floor map of looking up of the present utility model.

Fig. 4 is a side-looking floor map of the present utility model.

Fig. 5 is the action schematic representation of the utility model assembling motor.

Fig. 6 is the schematic top plan view behind the utility model assembling motor.

Embodiment

For making the auditor can further understand structure of the present utility model, feature and other purpose, the attached now graphic detailed description with preferred embodiment is as the back:

See also Fig. 1 and Fig. 6, the utility model fan mainly ties up to dish-shaped pedestal 10 on, once the blade 30 of ring plate 20 and some radially curved arcs is formed;

Dish-shaped pedestal 10 end face cordings have an outer portion 11 on it, and there is the columned shell chamber 12 of certain depth to constitute in these outer portion 11 central positions are recessed, this outer portion 11 is in the some

slots

13,14 of being provided with of outer rim and inner edge position five equilibrium, and make these corresponding in

twos slot

13,14 directions different, can provide motor 40 to be installed with as for 12 of shell chambers, and 12 bottom dead center position have provided sleeve 15 in the shell chamber, in order to provide motor 40 main shafts 41 to penetrate, and, be motor 40 main shafts 41 driven rotary with one heart and make dish-shaped pedestal 10 by the lock of bolt 16 knot;

Following ring plate 20 is the outer fringe position that is symmetrical in outer portion 11 belows, and a little more than 12 bottoms, shell chamber, so that make itself and 10 containing spaces that form a clitellum shape of last dish-shaped pedestal, this time ring plate 20 has provided caulking groove 21 going up dish-shaped pedestal 10 slots 13 positions relatively; And

Some blades 30, be installed on 20 formed clitellum shape containing spaces of dish-shaped pedestal 10 and following ring plate five equilibrium, this blade 30 radians system is made of two different circles footpaths, so that these blade 30 outer periphery radians are big than the inner circumference edge radian, and the outstanding dish-shaped pedestal 10 of this blade 30 peripheries system, the external diameter of following ring plate 20, and these blade 30 tops are provided with and can be fastened in corresponding slot 13, inserted block 31 in 14,32, the bottom then is provided with the abaculus 33 that can be fixedly arranged in corresponding caulking groove 21, and makes on this blade 30, following two ends system is being fixedly arranged in of a heeling condition and goes up 20 of dish-shaped pedestal 10 and following ring plates; Blade 30 forms the main lobe portion 34 of big wide cut area and the accessory lobes portion 35 of a less wide cut area respectively for upper and lower half section, outstanding ring plate 20 internal diameters down of 35 inner circumference edge bottoms system of this accessory lobes portion and upwards and inside arcuation extend, so that the blade 30 stage casings gradually large-area main lobe of formation portion 34, and make between major and

minor leaf portion

34,35 inner circumference edges and form a convex arc degree 36, be provided with some conduction holes 37 that run through the two sides in this main lobe portion 34, accessory lobes portion 35 then.

The utility model is when implementing, the master who adopts different wide cut sizes by above-mentioned blade 30 still,

accessory lobes portion

34,35 designs, cooperating down, ring plate 20 internal diameters increase down, and the wind inlet sectional area that can make blade 30 increases to promote the uptake of oil smoke, see through the main lobe portion 34 that blade 30 upper semisections form big wide cut area again, increase oil smoke intercepting amount and suction according to this, so that exhaust air rate increases, the accessory lobes portion 34 of blade 30 lower semisections extends upward with convex arc degree 36 simultaneously, cut resistance and can reduce blade 30 with oil smoke generation wind, and then reduce the audible noise that blade 30 and oil smoke contact-impact are produced, reaching the effect that noise reduces, the utility model mainly implement to tie up in:

One, the utility model is provided with the conduction hole 37 that runs through this main lobe portion 34, accessory lobes portion 35 two sides, make this conduction hole 37 have the effect that the guiding oil smoke enters, so that reduce the impedance of blade 30 when rotation, and can significantly promote the efficient of fan in rotation, in addition, this conduction hole 37 can reduce the direct collision problem of blade 30 between when rotation and oil smoke, is enough to reduce effectively noise.

Two, the utility model blade 30 upper/lower terminals systems is being fixedly arranged in of a heeling condition and goes up 20 of dish-shaped pedestal 10 and following ring plates, so can promote the rigidity of blade 30 when rotation, and this is provided with the specific surface area that can increase blade 30, promotes the efficient of fan in rotation according to this once more.

Three, 12 bottoms, the utility model shell chamber system projects to down ring plate 20 belows, so can significantly increase the volume of shell chamber 12, make motor 40 be enough to all be placed in wherein according to this, like this then can significantly reduce the volume of fan and motor 40 combinations, make being installed in the lampblack exhauster that the utility model can more not take up space.

According to preceding described, the utility model structure be not seen before really, and then reaches and significantly promote fan in the efficient and the rigidity of rotating, and can make the noise of this fan reduce to minimum.Yet the above, it only is a preferred embodiment of the present utility model, when can not with the scope implemented of qualification the utility model, promptly the equalization of being done according to the utility model claim generally changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. fan blade structure, it is by last dish-shaped pedestal, ring plate and some curved arc blades are formed down;

Go up dish-shaped pedestal end face and have outer portion, and there is the shell chamber to constitute in this outer portion central position is recessed, following ring plate is symmetricly set in the outer portion below, form the containing space of a clitellum shape between following ring plate and last dish-shaped pedestal, and with branches such as some curved arc blades be installed on this containing space, blade forms the main lobe portion of big wide cut area and the accessory lobes portion of a less wide cut area respectively for upper and lower half section, it is characterized in that:

2. fan blade structure as claimed in claim 1, it is characterized in that, go up dish-shaped pedestal outer portion and be provided with some slots in branches such as outer rim and inner edge position ground, slot direction of correspondence is different in twos for this, and this time ring plate has provided caulking groove going up dish-shaped pedestal outer rim slot position relatively;

Blade tip is provided with the inserted block that can be fastened in the corresponding slot, and the bottom then is provided with the abaculus that can be fixedly arranged in corresponding caulking groove.

3. fan blade structure as claimed in claim 1 is characterized in that, shell chamber system provides motor to be installed with, and bottom dead center position has provided sleeve in the shell chamber, provide motor spindle to penetrate, and tie by the lock of bolt, what upward dish-shaped pedestal was concentric is the motor spindle driven rotary.

4. fan blade structure as claimed in claim 1 is characterized in that, following ring plate is the outer fringe position that is symmetrical in the outer portion below, and a little more than bottom, shell chamber, bottom, shell chamber projects to down the ring plate below.

5. fan blade structure as claimed in claim 1 is characterized in that, blade radian system is made of two different circles footpaths, and this blade outer periphery radian is big than the inner circumference edge radian.

6. fan blade structure as claimed in claim 1 is characterized in that, the outstanding external diameter of dish-shaped pedestal, following ring plate of blade periphery system.

7. fan blade structure as claimed in claim 1 is characterized in that, the outstanding ring plate internal diameter down of accessory lobes portion inner circumference edge bottom system and upwards and inside arcuation extend, the blade stage casing forms gradually large-area main lobe portion.

8. fan blade structure as claimed in claim 7 is characterized in that, blade inner circumference edge bottom is connected to the blade stage casing with convex arc, forms a convex arc degree between major and minor leaf portion inner circumference edge.