WO2013159424A1 - Ventilateur sans pale - Google Patents

Ventilateur sans pale Download PDF

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Publication number
WO2013159424A1
WO2013159424A1 PCT/CN2012/076522 CN2012076522W WO2013159424A1 WO 2013159424 A1 WO2013159424 A1 WO 2013159424A1 CN 2012076522 W CN2012076522 W CN 2012076522W WO 2013159424 A1 WO2013159424 A1 WO 2013159424A1
Authority
WO
WIPO (PCT)
Prior art keywords
air outlet
air
ring
collar
wind
Prior art date
Application number
PCT/CN2012/076522
Other languages
English (en)
Chinese (zh)
Inventor
岑建力
Original Assignee
余姚市华昌电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201210127081.2A external-priority patent/CN103375440B/zh
Priority claimed from CN 201220184545 external-priority patent/CN202646181U/zh
Application filed by 余姚市华昌电器制造有限公司 filed Critical 余姚市华昌电器制造有限公司
Publication of WO2013159424A1 publication Critical patent/WO2013159424A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
    • F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation

Definitions

  • the present invention relates to a fan, and more particularly to a bladeless fan.
  • a fan with a fan blade needs to be provided with a cage-like net when it is used. The net is not only inefficient in manufacturing, high in cost, but also in safety performance, and is particularly dangerous for children.
  • a bladeless fan is also used, that is, an annular air duct is used to replace the early fan fan.
  • the air duct has an air outlet that points to one end of the air duct, and the air outlet has a convex surface to generate a negative pressure to attract The external airflow at the other end of the annular duct creates a function of airflow amplification.
  • the above-mentioned bladeless fan for the air outlet bulging has the disadvantages of the prior art: although the surface of the annular air outlet protrusion can perform a certain airflow amplification, the surface of the protrusion needs to be based on materials and materials near the air outlet. There are many factors involved in the setting of the surface state that can be achieved and the flow rate of the airflow. Therefore, in practical applications, the amplification effect of the airflow is not very obvious, and the main source of the airflow is still the fan connected to the air duct; In order to meet the needs of airflow amplification, the air outlet of the air duct has a single structure, and the airflow with proper cross-sectional shape and flow direction cannot be output according to actual needs. Disclosure of the Invention The present invention is directed to overcoming the above-mentioned drawbacks of the prior art by flexibly adapting to various airflow shapes and flow directions by providing an air outlet on the non-convex surface of the annular duct.
  • the present invention provides a bladeless fan, comprising: a duct, which is formed by abutting the first collar and the second collar in an axial direction, and the first set of rings and the second set of rings are corresponding to each other.
  • the annular groove forms a cavity between the two sets of rings after the docking.
  • the first set of rings is provided with an air outlet, and the air outlet is evenly arranged along the circumference of the first ring, and the air outlet is divided into a ring inner ring air outlet and outer a ring outlet, the surface of the inner portion of the annular groove of the first ring is gradually enlarged toward the air outlet; the air blower fan, the fan casing is connected to the air passage, and the air flow is pressed by the air compressor fan After entering the air duct, it is discharged through the air outlet.
  • the surface of the inner portion of the annular groove of the first set of rings may be a smooth and gradually enlarged tapered surface.
  • the surface of the inner portion of the annular groove of the first set of rings may also be a stepped and gradually enlarged tapered surface.
  • the inner ring air outlet and the outer ring air outlet are separated by an annular divided sheet, and the divided sheets are integrally connected with the first ring by the radial ribs arranged at equal intervals along the circumferential direction of the sheet, and the inclined of the divided sheets The angle is set according to the preset air direction.
  • the surface of the inner portion of the annular groove of the first set of rings may be evenly spaced along the circumferential direction to provide an auxiliary air outlet.
  • the inner ring air outlet and the outer ring air outlet are respectively disposed on the transition surface between the stepped and gradually enlarged tapered surfaces, and the air outlets of the same ring are evenly spaced apart.
  • the air outlets corresponding to the inner and outer rings are staggered, so that the airflow between the inner and outer rings is less likely to interfere with each other, especially if the airflows of the inner and outer ring air outlets interfere.
  • the present invention flexibly adapts to various airflow shapes and flow directions after the airflow is separated from the air outlet by the air outlet of the direct airflow of the annular air passage.
  • FIG. 1 is an exploded perspective view of a duct of Embodiment 1 of a bladeless fan of the present invention (a rear view);
  • FIG. 2 is a front cross-sectional view of a duct of Embodiment 1 of the bladeless fan of the present invention;
  • FIG. 4 is a front cross-sectional view of the duct of Embodiment 2 of the bladeless fan of the present invention;
  • FIG. 5 is an exploded perspective view of the duct of Embodiment 3 of the bladeless fan of the present invention; (Front view); Fig.
  • FIG. 6 is a front cross-sectional view showing the air passage of the third embodiment of the bladeless fan of the present invention
  • Figure 7 is an exploded perspective view of the bladeless fan embodiment 1 of the present invention (including a duct, a fan, a first centrifugal impeller, a base, etc.);
  • Figure 8 is a perspective view of a second centrifugal impeller of the bladeless fan embodiment 1 of the present invention;
  • Figure 9 is a cross-sectional view taken along line AA of Figure 8;
  • Figure 10 is a front cross-sectional view (double impeller, without a base) of the bladeless fan embodiment 1 of the present invention;
  • Figure 11 is a front cross-sectional view of the bladeless fan embodiment 1 of the present invention (single view)
  • Figure 12 is a perspective view of the bladeless fan embodiment 1 of the present invention (the base is a fixed clip);
  • Figure 13 is a perspective view of the bladeless fan embodiment 1 of the present invention (the base is a suction disk);
  • Embodiment 1 The air duct of the embodiment 1 of the bladeless fan of the present invention is as shown in FIG. 1 and FIG. 2, that is, the air duct 1 is formed by the first collar 12 and the second collar 11 being axially butted and fastened. Collar 12, second collar 11 The annular grooves corresponding to each other form a cavity inside the two rings after docking, and the whole ring is annular after the butting, the first ring 12 has an air outlet, and the air outlet surrounds the first ring 12 and is evenly spaced. And facing the side to be blown.
  • the first set of rings 12 is divided into a casing 121 and an inner casing (see Fig. 1).
  • the casing 121 and the inner casing constitute an annular groove of the first collar 12, and the inner casing constitutes the inner portion of the annular groove of the first collar 12.
  • the surface of the air outlet is disposed around a circular arc connecting surface between the outer casing 121 of the first collar 12 and the inner side surface.
  • the outer casing 121 and the inner bore are integrally formed by the equally spaced radial ribs, and a split sheet 122 is disposed circumferentially along the first collar, the split sheet 122 dividing the radial rib into the first rib 123 and the second
  • the ribs 124 form a double-layer air outlet, that is, an inner ring air outlet 127 and an outer ring air outlet 126 (see FIG. 2).
  • the split sheet 122 is disposed parallel to the axis, and may also be a tapered arrangement forming an angle with the axis. In order to correspond to the flow direction of the corresponding outlet airflow.
  • the inner surface of the inner ring of the first set of rings 12 is a tapered surface that gradually enlarges toward the air outlet.
  • the fan 2 according to the first embodiment is connected to the air inlet 125 of the air duct through the connection port, and the airflow is pressed into the air duct by the fan 2 and then discharged through the air outlet.
  • the casing 21 of the fan 2 is a horizontally thin cylindrical thin casing, and a driving motor 22 is mounted in the casing 21, and the driving motor 22 has a double output shaft 221 at both ends (see FIG. 10).
  • the axis of the rotating shaft 221 is coincident with or the same as the axis of the cylindrical thin casing of the casing 21, and the rotating shaft 221 protrudes from both ends of the motor 22 and is located in the casing 21.
  • the impeller 23 has a centrifugal structure and is generally cylindrical.
  • the circumferential surface of the impeller 23 is provided with a centrifugal blade impeller 23, and the number of the impellers 23 is two, which are respectively fastened to the motor shaft 221 located in the casing, and the air inlet of the impeller 23 is
  • the air inlets 24 are provided at both ends of the cylindrical casing 21, and the air inlets 24 of the casing 21 are radially-shaped elongated through holes (see FIG. 7) or a honeycomb through-hole array.
  • the airflow horizontally entering from the air inlet 24 of the casing 21 is driven by the impeller 23 to enter the annular duct 1 through the air inlet 125 of the duct 1, and is then blown through the outer ring air outlet 126 and the inner ring air outlet 127.
  • the air outlet of the casing 21 has a circular structure, and the outer surface of the air outlet of the fan casing 21 is provided with a connection bayonet 211 fixed to the air duct 1, and the air outlet of the casing 21 is provided.
  • the guide vane 212 is embedded, and the center of the guide vane 212 faces the air duct 1 and is provided with a convex guide cone 213.
  • the circular frame of the guide vane 212 is matched with the inner surface of the circular air outlet of the fan casing 21.
  • the impeller 23 can also use an alternative impeller 23a having an axially projecting air inlet 231a (see Fig. 8) and a centripetal curved arcuate blade 232a (see Fig. 9).
  • the bladeless fan of the present invention is portable so that its support can be designed in a variety of configurations. As shown in Fig. 7, the bladeless fan can be placed or sucked on the flat table top or other smooth surface by the mounting base 25.
  • the base has a pitch adjustment groove 251 and a circular arc guiding surface 252, so that the air outlet axis can be adjusted for the pitch angle.
  • a connecting arm can also be fixed at the rear of the casing 21, and the fan is fixed by the fixing clip 3, that is, the fixing clip 31 is provided at the end of the connecting arm.
  • it can also be fixed using a suction cup base 3a having a horizontal rotation adjustment shaft 32 and a pitch rotation adjustment shaft 33 which can fix the bladeless fan on a vertical smooth plane.
  • FIG. 12 shows a suction cup base 3a having a horizontal rotation adjustment shaft 32 and a pitch rotation adjustment shaft 33 which can fix the bladeless fan on a vertical smooth plane.
  • the fan casing 21 can be stably placed through the horizontal steering mount 3b and the horizontal plane, and the horizontal rotation adjusting shaft 32b is inserted into the fan casing 21, and the casing 21 can be adjusted around the horizontal rotation adjusting shaft 32b. Horizontal rotation angle.
  • a single impeller fan may be used, that is, the single impeller fan 2a is connected to the air duct 1 to provide a wind source for the air duct, and the fan 2a has only a single air inlet.
  • Embodiment 2 The embodiment 2 is different from the embodiment 1 in that the first collar 12a and the second collar 11a of the air duct la are connected, wherein the outer casing 121a of the first ring 12a is annularly concave.
  • the inner surface of the groove adopts a stepped stepwise enlarged tapered surface
  • the air outlet is an inner ring air outlet 127a and an outer ring air outlet 126a which are arranged at intervals around the axis, and the inner and outer ring air outlets are respectively arranged in the first set.
  • the transition surface of the tapered surface of the stepped ring of the ring 12a is stepwisely expanded, so that the air outlets 127a and 126a are alternately arranged adjacent to each other in order to make the air outlet more uniform (due to the sectional position)
  • the limitation of the inner ring air outlet 127a can only be shown in FIG.
  • Example 3 Embodiment 3 is as shown in FIGS.
  • an auxiliary air outlet is added on the basis of the first embodiment, and an auxiliary air outlet 128b is provided on the tapered surface of the inner portion of the annular groove of the first collar of the air duct 1.
  • the auxiliary air outlets 128b are equally spaced around the inner tapered surface of the first collar.
  • the auxiliary air outlet is provided with a through hole on the inner side surface of the first collar, and a guide wall having a shape shown in the figure is arranged at the port of the through hole, so that the wind direction of the auxiliary air outlet is consistent with the wind direction of the aforementioned conventional air outlet.
  • the invention provides an air outlet directly discharging the airflow on the non-raised surface of the annular air passage, so that the airflow is not attached to the surface of the protrusion after being separated from the air outlet, and can flexibly adapt to various airflow shapes and flow directions. .
  • the above disclosure is only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Abstract

L'invention porte sur un ventilateur sans pale, comprenant un canal de vent (1) et une soufflerie d'air comprimé (2) ; le canal de vent (1) est formé en appuyant une première virole (12) contre une seconde virole (11) dans une direction axiale ; une cavité est formée entre les deux viroles après la mise en butée ; la première virole (12) est munie de sorties de vent ; les sorties de vent sont uniformément réparties sur la périphérie de la première virole (12) ; les sorties de vent sont divisées en sorties de vent de bague intérieure (127) et sorties de vent de bague extérieure (126) ; la surface intérieure de la première virole (12) s'agrandit progressivement dans la direction des sorties de vent ; le carter (21) de la soufflerie communique avec le canal de vent (1) ; et, après avoir été comprimé dans le canal de vent (1) par la soufflerie d'air comprimé (2), le flux d'air est refoulé par les sorties de vent. Le ventilateur sans pale est muni d'un canal de vent annulaire ayant des sorties de vent qui ne font pas face à des surfaces saillantes et qui éjectent directement un flux d'air, de telle sorte que le flux d'air ne s'écoulera pas près des surfaces saillantes après être sorti par les sorties de vent, en satisfaisant ainsi avec une grande flexibilité les exigences de différents flux d'air de différentes sortes et directions de flux.
PCT/CN2012/076522 2012-04-26 2012-06-06 Ventilateur sans pale WO2013159424A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201210127081.2 2012-04-26
CN201210127081.2A CN103375440B (zh) 2012-04-26 2012-04-26 一种无叶风扇
CN201220184545.9 2012-04-26
CN 201220184545 CN202646181U (zh) 2012-04-26 2012-04-26 一种无叶风扇

Publications (1)

Publication Number Publication Date
WO2013159424A1 true WO2013159424A1 (fr) 2013-10-31

Family

ID=49482188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/076522 WO2013159424A1 (fr) 2012-04-26 2012-06-06 Ventilateur sans pale

Country Status (1)

Country Link
WO (1) WO2013159424A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201786776U (zh) * 2010-07-31 2011-04-06 张钜标 一种新型射流风扇
CN201874899U (zh) * 2010-11-29 2011-06-22 任文华 无叶风扇装置
CN201874898U (zh) * 2010-10-29 2011-06-22 李德正 无叶片风扇
CN202082170U (zh) * 2011-05-11 2011-12-21 任文华 无叶风扇
CN202646181U (zh) * 2012-04-26 2013-01-02 余姚市华昌电器制造有限公司 一种无叶风扇

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201786776U (zh) * 2010-07-31 2011-04-06 张钜标 一种新型射流风扇
CN201874898U (zh) * 2010-10-29 2011-06-22 李德正 无叶片风扇
CN201874899U (zh) * 2010-11-29 2011-06-22 任文华 无叶风扇装置
CN202082170U (zh) * 2011-05-11 2011-12-21 任文华 无叶风扇
CN202646181U (zh) * 2012-04-26 2013-01-02 余姚市华昌电器制造有限公司 一种无叶风扇

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