KR100985378B1 - A bladeless fan for air circulation - Google Patents

A bladeless fan for air circulation Download PDF

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Publication number
KR100985378B1
KR100985378B1 KR1020100038133A KR20100038133A KR100985378B1 KR 100985378 B1 KR100985378 B1 KR 100985378B1 KR 1020100038133 A KR1020100038133 A KR 1020100038133A KR 20100038133 A KR20100038133 A KR 20100038133A KR 100985378 B1 KR100985378 B1 KR 100985378B1
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KR
South Korea
Prior art keywords
air
inner flow
flow path
intake
inner
Prior art date
Application number
KR1020100038133A
Other languages
Korean (ko)
Inventor
윤정훈
Original Assignee
에스앤지 주식회사
윤정훈
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
Application filed by 에스앤지 주식회사, 윤정훈 filed Critical 에스앤지 주식회사
Priority to KR1020100038133A priority Critical patent/KR100985378B1/en
Application granted granted Critical
Publication of KR100985378B1 publication Critical patent/KR100985378B1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00Pumping installations or systems
    • F04D25/02Units comprising pumps and their driving means
    • F04D25/08Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04FPUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/14Jet 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
    • F04F5/16Jet 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

Abstract

PURPOSE: A blower for air circulation without vanes is provided to efficiently circulate indoor air by moving the air to a distant place. CONSTITUTION: A blower for air circulation without vanes comprises a support unit(10), an intake unit(30), and a nozzle unit(50). The intake unit is supported by the support unit and allows the external air to flow in. The nozzle unit is formed of an inner flow path, in which air supplied from the intake unit moves, and a gap portion, through which the air in the inner flow path is discharged to the outside. The inner flow path opens and closes one side so that air may flow in the inner flow path in a specific direction.

Description

Bladeless Fan for Air Circulation

The present invention relates to a wingless air circulation blower, and more particularly to a wingless air circulation blower that can improve the straightness of the wind by adding a rotational force to the air to be blown.

Various types of blowers are known for forced circulation of indoor air and the like. Conventional blowers have been composed of a drive unit such as a motor, a wing driven by the drive unit, a case surrounding the wing, and the like.

However, the blower having a wing as described above has a problem in that a finger or the like enters a gap between the casing to injure, or when a foreign object of a stick type enters, there is a problem in which a wing is broken.

In order to solve this problem, many blowers having no wings have been developed.

Wingless fan disclosed in Japanese Patent No. 56-167879 is a structure that discharges the intake air to the hole formed in the upper circular rim by using the wing of the lower, simply deflects only the direction of the air amplification effect of the intake air There is little problem.

WO 2009/030879 A1 discloses a wingless fan that solves the problems of the above-described Japanese patent. The fan has no wings to ensure safety, and the air introduced from the lower portion passes through the annular nozzle portion, and provides a co-fax face at a position adjacent to the nozzle, thereby amplifying the amount of blown air. However, there is a problem that air is not uniformly blown over the entire area of the nozzle part because air supplied from below the nozzle part is divided into both sides and passes through a passage formed inside the nozzle. In addition, the invention has the effect of amplifying the amount of air blown by using the Coanda effect, but there is a limit to the straightness of the air blown because it is not possible to impart rotational force to the air blown. After all, such a fan can exert a cooling effect in a predetermined range, but because the linearity of the air blown is weak, it cannot play a role as an air circulation blower.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a blower that is secured by removing the blade of the blower. In addition, an object of the present invention is to provide an air circulation blower having an increased amount of air blown by using a Coanda effect and imparting a rotational force to the air passing through the internal flow path, thereby improving the straightness of the air.

In order to solve the above problems, the present invention and the support; An intake part supported by the support part and configured to intake external air; And a nozzle unit comprising an inner flow path through which the air supplied from the intake unit moves and a gap portion through which the air of the inner flow path is discharged to the outside, wherein the inner flow path is formed at the intake unit. One side of the inner flow path is closed to allow the supplied air to travel in one direction from the inner flow path, and a partition wall is formed along the inner flow path in the inner flow path, so that the cross-sectional area of the inner flow path gradually decreases toward the direction of air flow. By providing a rotational force to the air blown to provide a wingless air circulation blower, characterized in that to improve the straightness of the wind.

delete

In addition, the inner side of the inner passage or the inner surface of the nozzle portion is characterized in that the guide rib for causing the rotation of the air is formed.

In addition, an air purification filter is provided inside the intake unit.

According to the present invention, it is possible to blow a large amount of air without a wing using the Coanda effect, to flow the air only in one direction to the inner flow path and to further reduce the cross-sectional area of the inner flow path in the direction of air progress, or By providing the guide ribs on the inner surface of the inner flow path and / or the nozzle portion, rotational force can be added to the air to improve the straightness of the blown air.

Therefore, by using the air circulation blower according to the present invention it is possible to efficiently circulate the indoor air by moving the air to a distant place.

1 is a front view and a side view showing an air circulation blower according to the present invention,
Figure 2 is a bottom view of the nozzle unit of the air circulation blower shown in FIG.
Figure 3 is a perspective view of the nozzle unit of the air blast blower shown in Figure 1,
Figure 4 is a perspective view of the inner case and the outer case constituting the nozzle portion of the air circulation blower shown in FIG.
5 is a side view of the inner case and the outer case constituting the nozzle unit according to another embodiment of the present invention,
6 is a perspective view illustrating an inner case of a nozzle unit according to still another exemplary embodiment of the present invention.

The present invention is characterized in that the cooling effect is exerted by using the Coanda effect without employing a wing unlike a conventional blower. The Coanda effect refers to a phenomenon in which fluid flows along a surface's curvature as it passes over the surface. The coanda effect has already been demonstrated in several documents and detailed description thereof is omitted here.

In order to improve the straightness of the air blown, the present invention is characterized by adding a rotational force to the air blown. Conventionally, comb-type deflection ribs have been provided in the front case of the blower blade to add rotational force to the air to be blown. In the present invention, unlike the prior art, by removing the wing and applying a structural change to the internal flow path formed inside the nozzle unit to add a rotational force to the air blown.

According to the present invention, in order to provide rotational force to the air to be blown, the air flows in only one direction to the inner flow path so that the air flows only in one direction. In addition, the present invention is configured such that the cross-sectional area of the inner passage gradually decreases toward the air in order to provide rotational force to the air to be blown. In addition, the present invention is configured to form a guide rib on the inner surface of the inner flow path and / or the nozzle portion to provide a rotational force to the air blown.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation of the present invention.

Referring to FIG. 1, in which the air circulation blower according to the present invention is shown, the blower 100 according to the present invention includes a support part 10, an intake part 30, and a nozzle part 50.

The support unit 10 is connected to the intake unit 30 to support the intake unit 30, the intake unit 30 can be rotated up and down about the central axis of the connecting portion 12 formed on both ends of the support portion Do.

The intake unit 30 is a portion that intakes air and supplies the same to the nozzle unit 50. For intake of external air, a plurality of air inlet holes 14 are formed on the outer circumferential surface of the intake unit 30. If necessary, an air inlet hole (not shown) may be further formed on the bottom surface of the intake unit 30. The intake unit 30 has a motor and an intake fan for intake air. The internal configuration of the intake portion and the principle of intake are obvious to those skilled in the art, and do not belong to the scope of the present invention, and thus detailed description thereof will be omitted.

An air purifying filter may be further provided inside the intake unit 30, for example, directly above the side intake hole. Thus, by providing the air purification filter, the air circulation blower according to the present invention can exhibit an air purification function.

2 to 4, the nozzle unit according to the present invention is illustrated, the nozzle unit 50 according to the present invention receives air from the lower portion of the nozzle unit 50 through the intake unit 30. Air passing through the internal flow path 54 formed in the nozzle unit 50 is discharged to the outside through the gap portion 56 formed at the rear of the nozzle unit 50, the discharged air is the nozzle unit 50 Flows along the inner surface 58 of. The inner surface 58 is preferably at an angle with respect to the parallel axis to generate a Coanda effect.

The present invention is characterized in that the air flowing into the nozzle unit 50 is introduced only in one direction in order to provide a rotational force to the air blown.

The nozzle unit 50 includes an inner case 50a and an outer case 50b, and an inner flow path 54 through which air can flow is formed between the inner case 50a and the outer case 50b. do. An inner surface of the nozzle unit 50 has a gap portion 56 through which the air passing through the inner flow passage 54 is discharged to the outside.

In order to provide rotational force to the air flowing through the inner flow passage 54, the inner flow passage extending from the bottom surface of the nozzle unit 50 has a wall portion 52 on one side of the inner flow passage 54 so that one side is closed. Is provided. Therefore, the air passing through the intake unit 30 proceeds only to one side of the inner flow path 54. That is, referring to FIG. 2, air may enter the inner passage 54 only in the right direction. Since the inner passage 54 is formed in an annular shape, rotational force is obtained when air flows along the inner passage 54.

The present invention also provides another means for providing rotational force to the flowing air.

Specifically, referring to Figure 4, the inner passage 54 according to the invention is characterized in that the cross-sectional area gradually decreases along the advancing direction of air. The reason for reducing the cross-sectional area is to impart rotational force to the air, and additionally to compensate for the pressure reduced by the air exiting through the gap. As a result, the air obtained by reducing the cross-sectional area of the inner flow passage 54 along the advancing direction of the air can be uniformly blown over the entire area of the gap portion 56 formed in the nozzle portion 50. have.

In order to reduce the cross-sectional area of the inner passage 54, the present invention provides a partition 60 inside the inner passage 54. Referring to FIG. 4B, the partition wall 60 is formed along the inner surface of the outer case 50b. The partition wall 60 is formed to gradually approach the direction (rear) where the gap portion 56 is formed along the advancing direction of air. As such, since the partition wall 60 gradually approaches the gap portion 56 inside the inner flow passage 54, the cross-sectional area of the inner flow passage 54 is reduced.

In order to provide a rotational force to the air blown, the present invention provides a guide rib on the inner surface of the inner passage and / or the inner surface of the nozzle portion.

Referring to FIG. 5, when the guide rib 64 is provided inside the inner flow path 54, the guide rib 64 may be provided on the outer surface 62 of the inner case 50a.

The guide rib 64 is formed to be deflected by a predetermined angle with respect to the thickness direction of the nozzle part 50, that is, the direction in which the air exits through the gap 56. In addition, the guide rib 64 may be formed in a straight line, but is preferably formed in a gentle curved line to increase rotational force.

Since the guide rib 64 is formed in the inner flow path 54, rotational force may be added to the air flow moving toward the gap portion 56 from the inside of the inner flow path 54.

Alternatively, referring to FIG. 6, it is also possible to provide the guide ribs 74 on the inner surface of the nozzle unit 50, that is, on the inner surface 72 of the inner case 50a. In this case, rotational force may be applied to the air flow flowing out of the gap portion 56 and flowing along the inner surface 72.

In order to maximize rotational force, guide ribs may be formed on the inner side of the inner flow path and the inner surface of the nozzle unit, respectively.

10 support
12 connections
14 Air Inlet
30 intake section
50 nozzles
50a inner case
50b outer case
52 wall
54 internal euros
56 gap
58 inside
60 bulkhead
62 Outside of Inner Case
64, 74 guide rib
72 inner surface of inner case

Claims (4)

  1. A support;
    An intake part supported by the support part and configured to intake external air;
    A bladeless air circulation blower comprising: a nozzle unit comprising an inner flow path through which the air supplied from the intake unit moves and a gap portion through which air in the inner flow path is discharged to the outside.
    The inner flow passage is closed at one side of the inner flow passage so that the air supplied from the intake unit may travel in one direction from the inner flow passage,
    In order to improve the straightness of the wind by adding rotational force to the air to be blown, wingless, characterized in that the partition wall is formed along the inner flow path to the inside of the inner flow path so that the cross-sectional area of the inner flow path is reduced along the direction of the air flow. Air circulation blower.
  2. delete
  3. A support;
    An intake part supported by the support part and configured to intake external air;
    A bladeless air circulation blower comprising: a nozzle unit comprising an inner flow path through which the air supplied from the intake unit moves and a gap portion through which air in the inner flow path is discharged to the outside.
    The inner flow passage is closed at one side of the inner flow passage so that the air supplied from the intake unit may travel in one direction from the inner flow passage,
    In order to add rotational force to the air blown to improve the straightness of the wind, a partition wall is formed along the inner flow path inside the inner flow path, and for causing the rotation of air on the inner surface of the inner flow path or the nozzle portion A wingless air circulation blower, characterized in that the guide rib is formed.
  4. The method of claim 1,
    The airless blower, characterized in that the air purifying filter is provided inside the intake portion.
KR1020100038133A 2010-04-23 2010-04-23 A bladeless fan for air circulation KR100985378B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100038133A KR100985378B1 (en) 2010-04-23 2010-04-23 A bladeless fan for air circulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100038133A KR100985378B1 (en) 2010-04-23 2010-04-23 A bladeless fan for air circulation
PCT/KR2011/001820 WO2011132855A2 (en) 2010-04-23 2011-03-16 Bladeless air blower for air circulation

Publications (1)

Publication Number Publication Date
KR100985378B1 true KR100985378B1 (en) 2010-10-04

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WO (1) WO2011132855A2 (en)

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GB2484762A (en) * 2010-10-18 2012-04-25 Dyson Technology Ltd A fan assembly comprising an adjustable nozzle for control of air flow
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KR101203379B1 (en) 2011-07-27 2012-11-21 이광식 Ring nozzle of no bladeless fan
US20120318392A1 (en) * 2011-06-16 2012-12-20 Kable Enterprise Co., Ltd. Bladeless air fan
CN102878121A (en) * 2011-07-12 2013-01-16 任文华 Bladeless fan
CN103410769A (en) * 2013-08-28 2013-11-27 苏州萤火虫贸易有限公司 Double-end air suction assembly
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