CN201771875U

CN201771875U - No-blade fan

Info

Publication number: CN201771875U
Application number: CN201020519265XU
Authority: CN
Inventors: 李德正
Original assignee: Individual
Current assignee: Li Dezheng; Ying Hui
Priority date: 2010-09-07
Filing date: 2010-09-07
Publication date: 2011-03-23
Anticipated expiration: 2020-09-07

Abstract

The utility model discloses a no-blade fan, comprising a base seat for generating a gas flow and a nozzle for spraying the gas flow, wherein the nozzle extends along an axle to limit an opening and comprises a rectification ring for receiving the gas flow from the base seat and a nozzle part for emitting the gas flow, the nozzle part comprises two walls for limiting the nozzle part and two walls are divided off by at least one separation piece extending along the nozzle part and the separation piece is connected with two walls of the nozzle part by the fixation piece to form many lines of exhaust ports extending along the nozzle part. When no-blade fan operates, many lines of exhaust ports simultaneously spray the gas flow and the gas flow spraying area of the nozzle part is increased therefore the gas flow generated by the no-blade fan is more uniform and gentle.

Description

The on-bladed fan

Technical field

The utility model relates to fan component, relates in particular to a kind of on-bladed fan that is used for producing in indoor environment air-flow and increase circulation of air flow.

Background technique

The conventional domestic fan generally includes a rotatingshaft, drives this blade or wheel rotation to produce the driving arrangement of air-flow around a cover blade or an impeller and being used to of this rotation.Flowing and circulation formation wind of air-flow, heat energy can obtain distributing consequently by cross-ventilation, and the user can experience nice and cool.The shortcoming of this conventional domestic fan is can not be experienced uniformly by the user by the blade of rotation or the air-flow of impeller generation, thereby the user can produce by the sensation of " beating " because of experiencing disorderly air-flow; Simultaneously, the blade occupation area is bigger, can reduce ambient brightness.

Existing a kind of on-bladed fan, it comprises the ring nozzle that the base portion that is used to form air-flow and support are located at this base portion, ring nozzle limits an opening, and nozzle comprises the mouth of inner passage and ejection air-flow, base portion comprises air inlet and the impeller of being located at its shell, and the discharge portion of impeller and the inner passage of nozzle are communicated with pipeline in the base portion respectively.Impeller passes through the air inlet extracting gases, the pipeline in the base portion of flowing through and the inner passage of nozzle, and the mouth by nozzle sprays air-flow (main air-flow) again; Entrainment its ambient air from the air-flow (main air-flow) of the mouth of nozzle ejection and entrainment air-flow (secondary airflow), entrainment air-flow mainly through opening that nozzle limited with formation.The air-flow that mouth sprayed of nozzle combines and forms the total air flow of launching forward from the opening that nozzle limited with entrainmenting air-flow, and this total air flow has approximate average velocity distributions in the diameter range of nozzle.Compare with the conventional domestic fan, existing on-bladed fan has lower turbulent flow to the air-flow that the user carries, and the user can experience uniform airflow more.

But existing on-bladed fan is owing to its reasons in structure has following shortcoming, and it mainly comprises:

One, existing on-bladed fan is that mouth ejection air-flow by nozzle entrainments its surrounding atmosphere and formed and entrainment air-flow, the air-flow that mouth sprayed of nozzle with entrainment the air-flow total air flow that formation launches forward from the opening that nozzle limited that combines.The mouth of nozzle is set to a finedraw usually, yet, only have only the airspeed that finedraw produced higher, the speed of entrainmenting air-flow is lower, thereby causes total air flow soft inadequately, even.

Two, the ring nozzle and the base portion of existing no leaf electric fan interfix, and the luffing mechanism of ring nozzle is arranged at outside the base portion.If change the last lower angle of air-flow that ring nozzle sprays, then need to make base portion to follow the ring nozzle unitary rotation, as ring nozzle is turned forward, base portion then forms an irregular body, take up room more, interfere with other article that are positioned over around the fan, and the pivoting angle of ring nozzle is big inadequately.

Three, well-known, there is a large amount of suspended dust particles in the air, dust have household electric appliance killer's title, and their existence greatly influences the performance of household electric appliance.The particulate matter that suspends in the air is made up of solid or liquid particle.Airborne particulates comprises the polydisperse aerosol of solid particle and liquid particulate.The air inlet of existing on-bladed fan is not provided with air filter; after using for a long time; airborne dust can stick to the mouth of pipeline, inner passage and nozzle in impeller, the base portion; especially its internal structure complexity due to the blade wheel structure; be difficult to take apart cleaning; if no air filter will adhere to too much dust, the motor load of impeller is increased, shorten its working life.Simultaneously, too much dust can cause the finedraw of nozzle mouth blocked, makes nozzle can not spray air-flow, thereby has shortened the working life of fan.

In summary, existing, on reality is used, obviously there are inconvenience and defective, so be necessary to be improved.

The model utility content

At above-mentioned defective, the purpose of this utility model is to provide a kind of on-bladed fan, and it can produce more even soft air-flow from the output face of fan.

To achieve these goals, the utility model provides a kind of on-bladed fan, comprise and be used to the nozzle that produces the pedestal of air-flow and be used to spray air-flow, described nozzle extends to limit an opening around an axis, and described nozzle comprises the collector ring and the mouth of launching air-flow that is used to receive from the air-flow of described pedestal, described mouth comprises two walls that are used to limit described mouth, described two walls are separated by at least one spacer member of extending along described mouth, described spacer member is connected with two walls of described mouth by fixed block, to form the multirow relief opening (fence type design) that extends along described mouth.

According to on-bladed fan of the present utility model, two adjacent row relief openings be arranged in parallel or shift to install.

According to on-bladed fan of the present utility model, described relief opening comprises the apparent surface who limits described relief opening, and the apparent surface of described multirow relief opening is 0.2mm～11mm apart from sum; The angle that forms between described relief opening and the described axis is 0.2 degree～7 degree; The length of described relief opening is 0.2mm～20mm.

According to on-bladed fan of the present utility model, described pedestal is provided with the support of the hollow that removably connects with described pedestal, described support is provided with the pitching pivot with through hole, and described nozzle is arranged at described support by described pitching pivot is rotatable.

According to on-bladed fan of the present utility model, be provided with electric machine casing in the described pedestal, the impeller that is installed with motor in the described electric machine casing and is connected with described electric machine rotational axis, have the exhaust passage in the described electric machine casing, and the through hole of described exhaust passage by described support and described pitching pivot is communicated with described collector ring.

According to on-bladed fan of the present utility model, the housing of described impeller and described pedestal is provided with gas-entered passageway, and described gas-entered passageway is provided with air filter.

According to on-bladed fan of the present utility model, described air filter is dismountable to be arranged at described gas-entered passageway.

According to on-bladed fan of the present utility model, the mouth of described nozzle is provided with a plurality of circular holes that are used to discharge air-flow, and the diameter of described circular hole is 0.2mm～10mm.

According to on-bladed fan of the present utility model, the width of described pedestal is no more than 2～3 times of width of described collector ring.

According to on-bladed fan of the present utility model, described base bottom also is provided with the support seat that is used for damping and supports described pedestal, and the height of described support seat is 5mm～35mm.

The utility model is separated two walls of described mouth by at least one spacer member of extending along the nozzle mouth, and described spacer member is connected with two walls of described mouth by fixed block, to form the multirow relief opening that extends along described mouth.During the operation of on-bladed fan, the multirow relief opening sprays air-flow simultaneously, has increased the area from air-flow that described mouth sprays, thereby the air-flow that makes the on-bladed fan be produced is more evenly soft.

Preferably, nozzle is by the rotatable support that is arranged at of pitching pivot, and nozzle can be that rotating shaft rotates freely in 360 degree scopes by the pitching pivot, thereby makes that the on-bladed fan can be in arbitrary orientation and arbitrary position to user's output gas flow.

The width of pedestal is no more than 2～3 times of width of collector ring, makes the form structure of on-bladed fan more compact, takies littler space.

Description of drawings

Fig. 1 is the front view of the utility model on-bladed fan;

Fig. 2 is the three-dimensional structure diagram of the nozzle of the utility model on-bladed fan;

Fig. 3 is a kind of partial enlarged drawing of mode of execution of the nozzle of the utility model on-bladed fan;

Fig. 4 is the partial enlarged drawing of relief opening, spacer member and fixed block among Fig. 3;

Fig. 5 is the partial enlarged drawing of another mode of execution of the nozzle of the utility model on-bladed fan;

Fig. 6 is the partial enlarged drawing of another mode of execution of the nozzle of the utility model on-bladed fan;

Fig. 7 is the side cross-sectional view of the utility model on-bladed fan along A-A line intercepting among Fig. 1;

Fig. 8 is the lateral section partial enlarged drawing of the utility model on-bladed fan;

Fig. 9 is the partial enlarged drawing of nozzle among Fig. 8;

Figure 10 is the side surface chart of the utility model on-bladed fan along B-B line intercepting among Fig. 7.

Figure 11 is the partial enlarged drawing of pitching pivot of the present utility model.

Embodiment

In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

As Fig. 1～shown in Figure 11, a kind of on-bladed fan 100 of the utility model, comprise and be used to the ring nozzle 20 that produces the pedestal 10 of air-flow and be used to spray air-flow, nozzle 20 extends to limit an opening 30 around an axis X, and nozzle 20 comprises the collector ring 21 and the mouth 22 of launching air-flow that is used to receive from the air-flow of pedestal 10.As Fig. 4 and shown in Figure 9, mouth 22 comprises two walls 221,222 that are used to limit mouth 22, two walls 221,222 are separated by at least one spacer member 23 of extending along mouth 22, spacer member 23 roughly circularizes, spacer member 23 is connected with two walls 221,222 of mouth 22 by fixed block, thereby forms the multirow relief opening 25 (fence type design) that extends along mouth 22.Two walls 221,222 of fixed block, spacer member 23 and mouth 22 are one-body molded.In the embodiment of Fig. 3～shown in Figure 5, relief opening 25 is arranged in two row, and obviously relief opening 25 also can be set to triplex row or multirow.

Preferably, as Fig. 3 and shown in Figure 5, two adjacent row relief openings 25 be arranged in parallel or shift to install, and in Fig. 3, because relief opening 25 has certain radian, two adjacent row relief openings 25 are parallel camber line.Adopt orderly arranging method, improved airflow state, can make from the air-flow of mouth 22 ejection in order, steadily, not disorderly.

When 100 operations of on-bladed fan, the gas that pedestal 10 is produced is through mouth 22 ejections of nozzle 20, to produce the air-flow that the opening 30 that limited from nozzle 20 is launched forward, entrainment its ambient air from the air-flow (main air-flow) of mouth 22 ejection and entrainment air-flow (secondary airflow), entrainment the opening 30 that air-flow is mainly limited through nozzle 20 with formation.The air-flow that mouth 22 is sprayed combines and forms the total air flow that the opening 30 that limited from nozzle 20 is launched forward with entrainmenting air-flow, and this total air flow has approximate average velocity distributions in the diameter range of nozzle 20.Simultaneously, multirow relief opening 25 sprays air-flow simultaneously, and the air-flow that makes mouth 22 be sprayed roughly becomes ring, and the flow area of its generation is big, and air-flow is more evenly soft.Whereby, the utility model increased from mouth 22 spray the area of air-flow, thereby the air-flow that makes on-bladed fan 100 be produced is more evenly soft.

Collector ring 21 comprises gradually narrow conical region, and multirow relief opening 25 is positioned at the end of conical region, and relief opening 25 to small part is an annular.As shown in Figure 9, relief opening 25 comprises the apparent surface 251,252 who limits it, and the apparent surface of multirow relief opening 25 is preferably 0.2mm～11mm apart from sum; The angle that forms between relief opening 25 and the axis X is preferably 0.2 degree～7 degree; The length of relief opening 25 is preferably 0.2mm～20mm.And the air-flow that multirow relief opening 25 is sprayed converges through being directed on the X-axis line, make air-flow that nozzle 20 produced roughly to circularize or circle sprays forward, air-flow is more concentrated, loss energy and airspeed still less, even the user is far away from on-bladed fan 100, still can experience nice and cool effect.

Preferably, relief opening 25 also can be set to the circular hole formula, and as shown in Figure 6, the mouth 22 of nozzle 20 is provided with a plurality of circular holes 26 that are used to discharge air-flow, and a plurality of circular hole 26 extends along mouth 22, and the diameter of circular hole 26 is 0.2mm～10mm.Adopt this mode can roughly become the air-flow of ring equally, can realize that on-bladed fan 100 produces the effect of evenly soft air-flow from nozzle 20 ejections.

As shown in figure 10, pedestal 10 inside are provided with electric machine casing 11, and the impeller 13 that is installed with motor 12 in the electric machine casing 11 and is connected with motor 12 running shafts, motor 12 are preferably dc brushless motor or mixed flow motor.Pedestal 10 is provided with and pedestal 10 support 14 that removably connects, and support 14 has a hollow channel 141, and the profile of support 14 is roughly and the adaptive semicircle of nozzle 20 lower half portions.The two ends of support 14 are respectively equipped with the pitching pivot 15 with through hole 151, and nozzle 20 is by the pitching pivot 15 rotatable supports 14 that are arranged at.In the present embodiment, nozzle 20 can be rotated freely in 360 degree scopes for rotating shaft by pitching pivot 15, thereby make that on-bladed fan 100 can be in arbitrary orientation and arbitrary position to user's output gas flow, it can be positioned on the floor, on the desktop and on the vertical body of wall, the luffing angle that only need adjust installation position and nozzle 20 gets final product.Simultaneously, support 14 removably connects with pedestal 10, when on-bladed fan 100 leaves unused, support 14 and pedestal 10 can be taken apart, more saves the space.

The housing of pedestal 10 is provided with a plurality of selector buttons 17 and suction port, and this suction port comprises primary air inlet that is positioned at pedestal 10 bottoms and/or the extra-air inlet that is positioned at pedestal 10 sidewalls.Impeller 13 is provided with gas-entered passageway with the housing of pedestal 10, and this gas-entered passageway is provided with air filter 19.This gas-entered passageway comprises the induction part of suction port, impeller 13 and the air-flow path between suction port and impeller 13 induction part.In the embodiment shown in fig. 10, only illustrated that air filter 19 is arranged at the situation of the induction part of impeller 13, can associate that air filter 19 also can be arranged at the air-flow path between suction port and suction port and impeller 13 induction part.Electric machine casing 11 inside have exhaust passage 16, and exhaust passage 16 is communicated with collector ring 21 by the hollow channel 141 of support 14 and the through hole 151 of pitching pivot 15.Thereby, gas-entered passageway, exhaust passage 16, hollow channel 141, through hole 151, collector ring 21 and a plurality of relief opening 25 form the air-flow path that connects continuously, during motor 12 runnings, gas enters fan 100 inside through the extraction of impeller 13 from the external world, through a plurality of relief opening 25 ejections.

Preferably, air filter 19 dismountable this gas-entered passageways that are arranged at are convenient to clean.This air filter 19 is set to airstrainer usually, can keep airborne dust can not enter on-bladed fan 100 inside, avoid dust to adhere to impeller 13, exhaust passage 16, collector ring 21 and relief opening 25, kept the unimpeded of on-bladed fan 100 internal gas flow passages, keep the cleaning of on-bladed fan 100 inside, thereby make on-bladed fan 100 have longer working life.Obviously, other are used for filtered air and play reducing dust and entering the filtrating equipment of effect of on-bladed fan 100 inside still within protection domain of the present utility model.

According to an embodiment of the present utility model, when the user selects to start on-bladed fan 100 from a plurality of selector buttons 17, motor 12 rotates and drives impeller 13, gas enters pedestal 10 from the external world, after process air filter 19 filters, enter the induction part of impeller 13, the air pressure of gas increased and formed high velocity air this moment, this high velocity air exhaust passage 16 of flowing through again, and be divided in opposite direction two strands of air-flows by support 14, these two strands of air-flows enter collector ring 21 through the through hole 151 of pitching pivot 15,21 pairs of these high velocity airs of collector ring carry out rectification, high velocity air after the rectification is restricted when entering conical region and a plurality of relief opening 25, sprays outside the on-bladed fans 100 to form main air-flow through a plurality of relief openings 25.This main air-flow entrainments its ambient air and entrainments air-flow (secondary airflow) with formation when a plurality of relief openings 25 spray, entrainment the opening 30 that air-flow is mainly limited through nozzle 20, the main air-flow that a plurality of relief openings 25 are sprayed combines and forms the total air flow that the opening 30 that limited from nozzle 20 is launched forward with entrainmenting air-flow, and this total air flow has approximate average velocity distributions in the diameter range of nozzle 20.Thereby the user experiences uniform airflow, reaches refrigeration.

As shown in Figure 7, the width of pedestal 10 is not more than 2～3 times of width of collector ring 21.The size of pedestal 10 is little with respect to the size of nozzle 20, make the profile of whole on-bladed fan 100 more compact, has reduced the shared space of on-bladed fan 100, has more aesthetic simultaneously.

Preferably, be provided with pedestal 10 housings on primary air inlet be arranged on the same axis with the induction part of impeller 13 is corresponding, and the diameter of primary air inlet is big than the diameter of the induction part of impeller 13.When impeller 13 extracting gases, extraneous gas enters primary air inlet with arc mode and relatively low speed all around through pedestal 10 bottoms, formation air-flow buffering can not make the direction generation cataclysm of air-flow, thereby produces big noise when avoiding 100 work of on-bladed fan.

Preferably, pedestal 10 bottoms also are provided with the support seat 40 that is used for damping and supporting base 10, and the height of support seat 40 is 5mm～35mm, make that air inlet was more smooth and easy to obtain bigger air-flow when on-bladed fan 100 was positioned over desktop.

In sum, the utility model is separated two walls of described mouth by at least one spacer member of extending along the nozzle mouth, described spacer member is connected with two walls of described mouth by fixed block, to form the multirow relief opening that extends along described mouth, during the operation of on-bladed fan, the multirow relief opening sprays air-flow simultaneously, has increased the area from air-flow that described mouth sprays, thereby the air-flow that makes the on-bladed fan be produced is more evenly soft.Preferably, nozzle is by the rotatable support that is arranged at of pitching pivot, and nozzle can be that rotating shaft rotates freely in 360 degree scopes by the pitching pivot, thereby makes that the on-bladed fan can be in arbitrary orientation and arbitrary position to user's output gas flow.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. on-bladed fan, comprise and be used to the nozzle that produces the pedestal of air-flow and be used to spray air-flow, described nozzle extends to limit an opening around an axis, and described nozzle comprises the collector ring and the mouth of launching air-flow that is used to receive from the air-flow of described pedestal, it is characterized in that, described mouth comprises two walls that are used to limit described mouth, described two walls are separated by at least one spacer member of extending along described mouth, described spacer member is connected with two walls of described mouth by fixed block, to form the multirow relief opening that extends along described mouth.

2. on-bladed fan according to claim 1 is characterized in that, two adjacent row relief openings be arranged in parallel or shift to install.

3. on-bladed fan according to claim 1 is characterized in that described relief opening comprises the apparent surface who limits described relief opening, and the apparent surface of described multirow relief opening is 0.2mm～11mm apart from sum; The angle that forms between described relief opening and the described axis is 0.2 degree～7 degree; The length of described relief opening is 0.2mm～20mm.

4. on-bladed fan according to claim 1, it is characterized in that, described pedestal is provided with the support of the hollow that removably connects with described pedestal, and described support is provided with the pitching pivot with through hole, and described nozzle is arranged at described support by described pitching pivot is rotatable.

5. on-bladed fan according to claim 4, it is characterized in that, be provided with electric machine casing in the described pedestal, the impeller that is installed with motor in the described electric machine casing and is connected with described electric machine rotational axis, have the exhaust passage in the described electric machine casing, and the through hole of described exhaust passage by described support and described pitching pivot is communicated with described collector ring.

6. on-bladed fan according to claim 5 is characterized in that the housing of described impeller and described pedestal is provided with gas-entered passageway, and described gas-entered passageway is provided with air filter.

7. on-bladed fan according to claim 6 is characterized in that, described air filter is dismountable to be arranged at described gas-entered passageway.

8. on-bladed fan according to claim 1 is characterized in that, the mouth of described nozzle is provided with a plurality of circular holes that are used to discharge air-flow, and the diameter of described circular hole is 0.2mm～10mm.

9. on-bladed fan according to claim 1 is characterized in that, the width of described pedestal is no more than 2～3 times of width of described collector ring.

10. on-bladed fan according to claim 1 is characterized in that, described base bottom also is provided with the support seat that is used for damping and supports described pedestal, and the height of described support seat is 5mm～35mm.