CN1074098C

CN1074098C - Fluid-guiding means for air-blower

Info

Publication number: CN1074098C
Application number: CN97116372A
Authority: CN
Inventors: 林国正
Original assignee: Delta Optoelectronics Inc
Current assignee: Taida Electronic Industry Co Ltd; Delta Optoelectronics Inc
Priority date: 1997-08-18
Filing date: 1997-08-18
Publication date: 2001-10-31
Anticipated expiration: 2017-08-18
Also published as: CN1208822A

Abstract

The present invention relates to a flow-guiding device of a blower fan, which can guide air flow to a centrifugal direction. The flow-guiding device comprises a wheel blade subassembly and a flow-guiding subassembly, wherein because of the rotation of the wheel blade subassembly, air flow is guided in the flow-guiding device in a specific direction; the flow-guiding subassembly is arranged in an air flow traveling route, the wheel blade subassembly is a circular body, and is composed of at least two blades, and the wheel blade subassembly is driven by a motor to rotate. The wheel blade subassembly also comprises a spindle collar, and the blades are arranged on the spindle collar. Thus, the flow guide of the flow-guiding device enables an air flow field to be changed along with air inlet environments so as to maintain the air flow quantity of the flow-guiding device.

Description

The flow guide device of blower

The flow guide device of the relevant a kind of blower of the present invention, its blower need can be applicable to the occasion of gas communication, as host computer, COPY MACHINES, table-printing machine etc.

According to inlet air pattern difference, can be divided into single face wind input type blower and two-sided wind input type blower in the flow guide device of known blower.

With regard to single face wind input type blower, its wheel blade assembly 10 all adopts one-sided blade uniform distribution type (seeing also shown in Figure 1), the blade 101 that the wheel blade assembly 10 of this one-sided blade uniform distribution type also is about on it is arranged at a stationary plane 102 1 sides, drive stationary plane 102 and drive 10 rotations of wheel blade assembly by a motor 12, the air velocity distribution that its rotation back is guided sees also shown in Figure 7, there is following shortcoming in the wheel blade assembly 10 of this one-sided blade uniform distribution type: one, improve the blast characteristic of single face uniform distribution type wheel blade device as desire, then can be by the quantity that increases blade in the wheel blade device in the hope of higher blast, but be subjected to the restriction in wheel blade size and space, the blade quantity increase of single face uniform distribution type wheel blade device has certain limit, therefore, on the blast characteristic, wheel blade assembly 10 difficulties of this one-sided blade uniform distribution type have breakthrough improvement; Its two because blade limited amount in the wheel blade assembly 10, wheel blade device rotation produces the noise (seeing also shown in Figure 5) that concentrates on low frequency; They are three years old, general single face wind input type blower often is subject to motor 12 and wind inlet size, so that hinders air velocity distribution, and the inlet air air-flow fails to flow to wheel blade bottom 71, the effectiveness of the whole blades of wheel blade can't be brought into play, and in 71 dead angles (seeing also shown in Figure 7) of causing air velocity distribution, wheel blade bottom.

With regard to two-sided wind input type blower, it is as if the one-sided uniform leaf type wheel blade assembly 10 that adopts as shown in Figure 1, and then this type of two-sided wind input type blower product has above-mentioned three shortcomings equally; Therefore, there is the two-sided wind input type blower of minority its wheel blade assembly to be improved to the wheel blade assembly 20 (seeing also shown in Figure 2) of two-sided mutual-inserting type distribution blade, the wheel blade assembly 20 of two-sided mutual-inserting type distribution blade makes the quantity multiplication of wheel blade blade 201, broken through the bottleneck of the wheel blade assembly 10 high blast characteristic demands of one-sided uniform distribution type shown in Figure 1 effectively, yet, the wheel blade assembly 20 of two-sided mutual-inserting type distribution blade has a division surface 21, division surface 21 is separated into separately independently air velocity distribution (seeing also Fig. 9) with the air velocity distribution of two-sided inlet air, therefore, the wheel blade assembly 20 of two-sided mutual-inserting type distribution blade only can be applicable to two-sided wind input type blower, in fact under actual behaviour in service, because of two-sided inlet air condition often is in the environment of two-sided impedance inequality, cause a part of wheel blade effectiveness to reduce or lost efficacy (see also Fig. 9 (b) with (c) shown in), so the two-sided wind input type blower of commonly using is often causing loss greatly on its blast characteristic on the contrary in the practical application.

The object of the present invention is to provide one can increase the blast characteristic and can be implemented on the blower flow guide device of single face wind input type and two-sided wind input type really simultaneously.

Of the present invention time a purpose is to provide a kind of flow guide device that lowers the blower at dead angle in the flow field.

A further object of the present invention is to provide a kind of flow guide device that reduces the blower noise.

Another purpose of the present invention be to provide a kind of can be in not increasing the flow guide device that can increase blast under the wheel blade size of components situation.

For achieving the above object, the present invention takes following scheme:

Blower flow guide device of the present invention comprises one with the wheel blade assembly of air-flow according to the specific direction guiding, it is characterized in that, also comprises a guiding subassembly;

Guiding subassembly is arranged in the described air-flow course.

Described flow guide device is characterized in that, described wheel blade assembly is body in the form of a ring, is made up of at least two blades, and is rotated by a motoring.

Described flow guide device is characterized in that, described wheel blade assembly more comprises a spindle collar, and described blade is arranged on the spindle collar.

Described flow guide device is characterized in that, described blade is arranged at least two levels.

Described flow guide device is characterized in that, described blade is distributed on the described spindle collar with being asymmetric.

Described flow guide device is characterized in that, described blade is divided into described spindle collar both sides with being mutual-inserting type.

Described flow guide device is characterized in that, described guiding subassembly is connected in described wheel blade assembly inboard.

Described flow guide device is characterized in that, described guiding subassembly is curved face type spare.

Described flow guide device is characterized in that, described guiding subassembly is the spoke of a hollow out.

Reaching embodiment in conjunction with the accompanying drawings is described as follows characteristics of the present invention:

Description of drawings:

Fig. 1: for commonly using the one-sided uniform leaf type wheel blade assembly schematic representation of blower;

Fig. 2: for commonly using the two-sided mutual-inserting type distribution leaf type wheel blade assembly schematic representation in the blower;

Fig. 3,11: the schematic representation of a preferred embodiment of the present invention;

Fig. 4: be the enlarged view of guiding subassembly among Fig. 3;

Fig. 5: the noise pattern that is produced when rotating for one-sided uniform leaf type wheel blade;

Fig. 6: the noise pattern that is produced when rotating for the present invention;

Fig. 7: the air velocity distribution schematic representation that is produced when using for the one-sided wind input type blower commonly used (one-sided uniform leaf type wheel blade rotation);

Fig. 8: the air velocity distribution schematic representation that is produced when the single face inlet air for the present invention;

Fig. 9: the air velocity distribution schematic representation that is produced when using for the two-sided wind input type blower of commonly using;

Figure 10: the air velocity distribution schematic representation that is produced when the two-sided inlet air for the invention process;

See also Fig. 3, it is the schematic representation of the invention process in a blower, flow guide device of the present invention comprises a wheel blade assembly 31 and a guiding subassembly 32, wheel blade assembly 31 includes several blades 311, blade 311 can be distributed in a spindle collar 312 both sides, and each blade 311 is arranged at spindle collar 312 both sides with asymmetrical arrangement mode, in present embodiment, be divided into spindle collar 312 both sides several blade 311 mutual-inserting types, make wheel blade assembly 31 under the situation of size constancy, wherein the quantity of blade can have more one times than the wheel blade quantity of single face uniform distribution type, to improve blast characteristic of the present invention, in addition, guiding subassembly 32 is connected in the inboard of wheel blade assembly 31, guiding subassembly 32 can be curved face type, slope surface, the long strip shape object of cabochon or plane, guiding subassembly 32 also can be the spoke of hollow out, by guiding subassembly 32 air velocity distribution (as shown in Figure 9) that is separated into two strands originally in the person of commonly using is interconnected, simultaneously, by guiding subassembly 32, make the blade 311 in the wheel blade assembly 31 can do multi-level arrangement (as shown in figure 11), and be not only to terminate in the even number level to arrange, can not have under the situation about being increased in size so that use blower of the present invention, can increase the blast characteristic really effectively; No matter flow guide device of the present invention is single face wind input type and two-sided wind input type blower if can be applicable to.

Flow guide device of the present invention has following effect:

With regard to single face wind input type blower:

One, sees also Fig. 8, and compare with Fig. 7 and Fig. 9 (c) simultaneously, the flow guide device of this creation is introduced the wheel blade assembly 31 and the guiding subassembly 32 of two-sided mutual-inserting type distribution blade in the single face wind input type blower, can the double quantity of blade 311 improves the demand of single face wind input type blower product for high blast characteristic;

Two, see also Fig. 6, and please compare with Fig. 5 simultaneously, can the double quantity of blade 311 of wheel blade assembly 31, and the noise that concentrates on low frequency that produces during will be originally one-sided uniform leaf type wheel blade rotation, on average be scattered in higher frequency (as shown in Figure 6), if increase the flow guide device that becomes as shown in Figure 1, then the concentrated phenomenon of low frequency noise more can be improved because blade quantity increases;

Three, see also Fig. 8, and compare with Fig. 7 and Fig. 9 (c) simultaneously, the water conservancy diversion effect that guiding subassembly 32 is produced, it can continue air velocity distribution, with the further guide vanes assembly of wind inlet air-flow 31 bottoms, to improve the curved surface effectiveness of wheel blade bottom, the dead angle of improving general single face wind input type blower (as Fig. 1 or shown in Figure 2) air velocity distribution that wheel blade causes, and then the efficient of increase single face wind input type blower.

Four, in fact, this guiding subassembly 32 of flow guide device also can be arranged at the central position of one-sided uniform leaf type wheel blade assembly, and the water conservancy diversion effect that guiding subassembly 32 is produced also can improve on the dead angle 71 shown in Fig. 7.

With regard to two-sided wind input type blower:

One, is divided into two kinds of designs in the two-sided wind input type blower of commonly using, one adopts one-sided blade uniform distribution type wheel blade, so this type of two-sided inlet air blower is same exist as the shortcoming of single face wind input type blower, therefore, also can use this wheel blade assembly 31 and guiding subassembly 32 and be improved;

Two, the wheel blade of two-sided mutual-inserting type blade is adopted in second kind of design in the two-sided wind input type blower of commonly using, this type of two-sided wind input type blower often is in the environment of two-sided impedance inequality because of the condition of two-sided inlet air, and the air-flow by two-sided inlet air is separated into two strands of incoherent air velocity distributions, therefore, cause a part of wheel blade effectiveness to reduce or lost efficacy and (see also Fig. 9 (a), (b), (c) shown in), therefore, two-sided wind input type blower can adopt wheel blade assembly 31 of the present invention and guiding subassembly 32, and by the water conservancy diversion effect of the guiding subassembly 32 of wheel blade assembly 31 central authorities, the two-sided air velocity distribution (seeing also Figure 10) of the continuity and the two-sided wind input type blower that links up, and can be with the air velocity distribution of two-sided wind inlet, will be when using along with the environment of two-sided inlet air condition inequality, and the oneself who forms air velocity distribution adjusts, the two-sided effectiveness of bringing into play the wheel blade assembly 31 of two-sided mutual-inserting type blade effectively is (as Figure 10 (b), (c) shown in), and if desire increases the blast size and only need increase by a row blade (as shown in figure 11) again, in specific using scope, need not change the size and size of wheel blade assembly, also need not change the specification and the power of motor, just can make performance upgrade, and improve and commonly use the loss in efficiency that is caused in the two-sided wind input type blower application, and then the effectiveness of promoting blower.

In sum, the present invention can introduce single face wind input type blower with the wheel blade assembly of two-sided mutual-inserting type blade, improves the characteristic of single face wind input type blower blast, and the wheel blade quantity that can double, and will rotate the noise that concentrates on low frequency that produces because of wheel blade originally; And by guiding subassembly 32, be the blower of single face wind input type or two-sided wind input type, all can obtain the lifting of efficient no matter make.

Claims

1, a kind of flow guide device of blower comprises-with the wheel blade assembly of air-flow according to the specific direction guiding, it is characterized in that, also comprises a guiding subassembly;

Guiding subassembly is arranged in the described air-flow course.

2, flow guide device according to claim 1 is characterized in that, described wheel blade assembly is body in the form of a ring, is made up of at least two blades, and is rotated by a motoring.

3, flow guide device according to claim 2 is characterized in that, described wheel blade assembly more comprises a spindle collar, and described blade is arranged on the spindle collar.

4, flow guide device according to claim 3 is characterized in that, described blade is arranged at least two levels.

5, flow guide device according to claim 4 is characterized in that, described blade is distributed on the described spindle collar with being asymmetric.

6, flow guide device according to claim 5 is characterized in that, described blade is divided into described spindle collar both sides with being mutual-inserting type.

7, flow guide device according to claim 2 is characterized in that, described guiding subassembly is connected in described wheel blade assembly inboard.

8, flow guide device according to claim 7 is characterized in that, described guiding subassembly is curved face type spare.

9, flow guide device according to claim 7 is characterized in that, described guiding subassembly is the spoke of a hollow out.