WO2019045459A1

WO2019045459A1 - Handy fan having improved blowing efficiency

Info

Publication number: WO2019045459A1
Application number: PCT/KR2018/010019
Authority: WO
Inventors: 김통일
Original assignee: (주)비체룸
Priority date: 2017-09-04
Filing date: 2018-08-30
Publication date: 2019-03-07
Also published as: KR101931259B1

Abstract

Disclosed is a portable fan capable of preventing wind from dispersing during blowing, and ensuring straightness so as to enable blowing efficiency to improve.

Description

Handy-type fan with improved airflow efficiency

The present invention relates to a handy type fan including a blade that is inserted into a rotation shaft of a motor and is rotated, a safety net that is composed of a front net, a rear net, and a side net and protects the wing, and a handle provided on one side of the safety net, The side net is constructed such that the wind generated by the rotation of the wing is not scattered on the side but is concentrated on the forward part or the whole part so as to be concentratedly injected forward, The present invention relates to a handy type fan having improved blowing efficiency, characterized in that it has a band shape having a predetermined width to enclose the net, and a scatter preventing ring coupled to the side net in a pullable state forward.

Generally, an electric fan used in a home or office is a mechanical device that provides a cool wind to the users in the summer by blowing air forward from the rear by rotating the rotating blades as the motor is driven.

In recent years, the use of a handy-type fan, which is light in weight and easy to carry around, is rapidly increasing. For example, a woman with makeup may experience difficulty in cosmetic surgery due to heat from the sweat of his face due to heat, so that the use of small electric fans that can be carried in bags or bags is increasing significantly.

Such a conventional handy type fan includes a blade that is rotated by being inserted into a rotation shaft of a motor, a safety net having a grill for protecting the blade from the front, rear, and sides of the blade, and a handle provided at one side of the safety net The safety net is provided with a spiral or straight grill so that a user, especially infants or young children, can be transferred to a windy user formed during the rotation of the wings while preventing the user from touching the wing during use of the fan.

However, in the conventional handy type fan, since the front edge of the blade is opened due to the grill, the wind formed during the rotation of the blade is scattered and is not transmitted to the far side, thus significantly reducing the blowing efficiency. In order to feel the coolness, The battery is consumed in proportion to the rotation, so that the use time of the fan is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a wind turbine bladder having a front side or a front side clogged side net to increase the wind speed, The purpose of the present invention is to provide a handy type fan which can be used as a fan.

According to another aspect of the present invention, there is provided a method of manufacturing a safety net comprising a blade for being rotated by a rotation shaft of a motor, a safety net for protecting the wing and a handle provided on one side of the safety net, In the handy type fan, the side net is constructed such that the wind generated by the rotation of the blade is not scattered to the side but is blocked in the front part or the whole part so that it can be concentratedly injected forward, And a scattering prevention ring in a form of a band having a predetermined width to wrap the side mesh so as to enhance straightness, and to be pulled out from the side mesh in a forward direction.

Further, in order to allow the anti-scattering ring to be coupled to the side net in a pullable manner, the stop ring is formed on one side of the outer circumferential surface of the side net and the inner peripheral surface of the anti-scattering ring, The stopper guide groove for guiding the stopper guide groove is formed. When the stopper ring is pulled toward the front of the safety net or is pushed backward, the stopper moves along the stopper guide groove, thereby pulling out or pulling out the anti-scattering ring.

Further, in order to allow the anti-scattering ring to be pulled out from the side net in a forwardly withdrawable state, a spiral guide groove is formed on one side of the outer circumferential surface of the side net and the inner circumferential surface of the anti-scattering ring, And a guide engaged with the groove is formed to protrude. When the anti-scattering ring is rotated, the anti-scattering ring is drawn out while being rotated in a spiral form from the side net, and after being pulled out, And the like.

The present invention also relates to a handy type fan including a blade which is inserted and rotated by a rotation shaft of a motor, a safety net which is composed of a front net, a rear net and a side net and protects the wing and a handle provided on one side of the safety net The side net is configured such that the wind generated by the rotation of the wing is not scattered to the side but is blocked in the front part or the entire part so as to be concentratedly injected forward, And a band-shaped scattering prevention part having a predetermined width, which is entirely blocked so as to enhance the straightness, is formed by expanding the area where the wind is gathered and concentrated.

Further, in order to allow the front net to be pulled out from the side net, a stopper in the form of a projection is formed on one surface of the outer circumferential surface of the side net and the inner circumferential surface of the scattering prevention portion, A stopper guide groove for guiding the stopper guide groove is formed so that the front surface of the stopper guide groove is pulled toward the front of the safety net or is pushed rearward so that the stopper moves along the stopper guide groove to pull or pull the front surface net.

Further, in order to allow the front net to be coupled to the side net in a pullable manner, a helical guide groove is formed on one of the outer circumferential surface of the side net and the inner circumferential surface of the scatter preventive portion, The front net is spirally pulled out from the side net, and the front net is supported by the guide after the net is pulled out to be prevented from being arbitrarily drawn by the external force. So that it is possible to obtain a desired image.

In the handy type fan according to an embodiment of the present invention as described above, the front side or the front side of the blade is blocked by the side net protecting the side surface of the blade, so that the wind is not scattered during the blowing, Efficiency can be increased and the scattering prevention ring can be pulled out from the side net to enlarge the concentration area for concentrating the wind so that the straightness can be remarkably improved when the wind is discharged.

In addition, the handy type fan according to an embodiment of the present invention is configured to be pulled out while being rotated in the form of a spiral, so that it can be easily drawn out forward and used, and it is possible to prevent a scattering- There are advantages to be able to.

Further, in the handy type fan according to another embodiment of the present invention, the side net for protecting the side of the blade is blocked in the front part or the whole of the blade, so that the air is concentratedly sprayed without scattering the wind during the air blowing, And when the front net is drawn out from the side net, the scattering prevention part expands the area where the wind is gathered and concentrates, so that the straightness can be remarkably improved.

Further, the handy type fan according to another embodiment of the present invention is configured such that the front net is drawn out while being rotated in the form of a spiral so that it can be easily drawn out forward and used, and the front net can be prevented from being arbitrarily drawn by external force There are advantages.

1 is an exemplary view of a conventional general handheld type fan.

2 to 5 are views illustrating an example of a handy type fan having improved blowing efficiency according to an embodiment of the present invention.

FIG. 6 is a schematic view illustrating a comparison between a conventional handheld type fan and a handy type fan having improved airflow efficiency according to an embodiment of the present invention. FIG.

FIGS. 7 to 9 are diagrams for explaining a handy type fan having improved blowing efficiency according to another embodiment of the present invention; FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a handy type fan having improved blowing efficiency according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the handy type fan (1) includes a blade (2) that is rotated by being inserted into a rotation shaft of a motor, a safety net (3) for protecting the blade from the front, rear and side surfaces of the blade, And a handle 6 that is made of a synthetic resin. The safety net (3) comprises a front net (4) for protecting the wing from the front of the wing, a rear net (5) for protecting the rear side of the wing and a side net (10) It is a light and small fan that can be stored in a pocket or pocket and can easily carry around and provide a cool wind on the face or body area.

As shown in FIGS. 2 to 3, the side net 10 according to the present invention can prevent the wind from being scattered when blowing air, and improve the blowing efficiency by securing straightness. As a technical feature.

Generally, the safety net of the handy type fan is provided with a spiral or a straight grill so that the wind formed at the time of rotation of the blade is prevented from being contacted with the wing during infant or young children's use of the fan, In the conventional side net 10 'of the handy-type fan, the front portion of the blade is opened except for the grill, so that wind is scattered to the open portion during blowing, and loss is generated, thereby failing to feel satisfaction (coolness) .

Of course, it is also possible to see that the blowing range is increased because the scattered wind is blown through the opening portion, but the blowing efficiency is extremely low because the wind can not be seen to reach the user. In addition, if the wing is rotated more quickly to feel coolness, the battery is consumed proportionally, resulting in a problem that the use time of the fan is reduced.

Therefore, in order for the user to feel cool, it is necessary to position the fan more closely or rotate the blade faster. If the blade is rotated faster, the consumption of the battery is increased so much that the time for using the fan is shortened, Lt; / RTI >

On the other hand, since the front side or front side of the side net 10 of the handy type fan according to the present invention is clogged, the wind can be concentratedly injected without blowing during the blowing, It is possible to use a considerable amount of time as compared with the conventional handy type fan, and it is advantageous in that it can be used comfortably with less noise.

Next, the present invention may include a splash-proof ring 20 extending in a predetermined width from a rear edge of the front net and coupled to the side net in a wrapping manner so as to be pulled out forward.

The anti-scattering ring 20 extends the region where the wind collects and concentrates during the blowing so that the wind passes through the side net 10 and the scattering prevention ring 20 to enhance the straightness, .

As shown in FIG. 4, for example, a stopper 11 in the form of a projection is formed on the outer circumferential surface of the side net 10 (see FIG. 4) A stopper guide groove 21 for guiding the stopper 11 is formed on the inner circumferential surface of the shatterproof ring so that when the shatterproof ring 20 is pulled or pushed in, the stopper 11 comes into contact with the stopper guide groove 21 The movement distance of the scattering prevention ring 20 is limited as the stopper 11 is caught by both end portions of the stopper guide groove 21. [

The stopper 11 and the stopper guide groove 21 may be formed to be opposite to the outer circumferential surface of the side net and the inner circumferential surface of the anti-scattering ring. The stopper 11 and the stopper guide groove 21, The shape is only an example for facilitating understanding of the present invention and is not limited to the scope of the present invention.

FIG. 6 is a perspective view of a conventional handy type fan 1 ', a handy type fan 1 having a front side closure 10 covered with a front part of a blade according to an embodiment of the present invention, FIG. 1 is a view showing an example of a handy type fan 1 from which a scattering prevention ring 20 is pulled out from a handy type fan 1. The conventional handy type fan and the handy type fan according to the embodiment of the present invention, The airflow is schematically shown.

As shown in FIG. 6 (a), the side net 33 'of the conventional handy fan 1' has the remaining portions except for the grill, in particular, the forward portion of the blade is open, And the wind speed is also significantly lower.

6, the handy type fan 1 having the front side clogged blades 10 prevents the side net from being scattered by the wind during blowing, It is possible to obtain the effect that the wind speed is increased by concentrating the wind in the inside.

6 (c), the handy-type fan 1 in which the scattering-prevention ring 20 is pulled out from the side net 10 is expanded in the region where the wind is collected, so that the pressure in the inside increases, The wind speed can be maximized by the remarkable increase effect.

The reason why the splash proof ring 20 is configured to be pulled out from the side net 10 is that it is not inconvenient to carry and store and the wind speed can be selectively controlled during the use of the fan as in b) to c) To provide a higher level of satisfaction.

Of course, the anti-scattering ring 20 may be integrally formed on the front edge of the front net 4. However, in this case, since the anti-scattering ring always protrudes outwardly, the portability is deteriorated. There is a problem in that care must be taken to prevent such a problem. In addition, although the anti-scattering ring is provided, it is expected that the effect of improving the wind speed can be expected. However, since the anti-scattering ring can not be pulled selectively to selectively adjust the wind speed as required according to the present invention, There is a problem of falling.

As described above, the handy type fan according to the present invention is superior in air volume and wind speed to the conventional Handy type fan, and has an advantage of excellent blowing efficiency because the air flow rate and wind speed are remarkably increased according to whether or not the scattering prevention ring 20 is drawn out.

Next, in the present invention, the anti-scattering ring 20 can be drawn out and drawn while being rotated in a spiral form from the outer circumferential surface of the side net 10.

Referring to FIG. 5, the anti-scattering ring 20 according to the present invention is formed with a helical groove 22 along the inner circumferential surface thereof, and a guide 12 engaging with the guide groove is formed on the outer circumferential surface of the side net . In order to facilitate understanding of the present invention, the guide 12 is shown as a helical shape so as to correspond to the guide groove. However, the present invention is not limited to the scope of the present invention. For example, the guide 12 may have the same shape as the stopper 11 of FIG. When the guide 12 is formed into a spiral shape as shown in FIG. 5, an area fit to the guide groove 22 can be ensured, so that the scatter preventive ring 20 can be rotated or drawn out more stably, It is possible to increase the distance by which the scattering-prevention ring 20 can be pulled out forward, so that the blowing efficiency can be increased. Also, although not shown in the drawing, a helical guide groove may be formed along the outer circumferential surface of the side net, and a corresponding guide may protrude outwardly from the inner circumferential surface of the side wall.

In order to pull out or draw in the scatter preventing ring 20, one hand must hold the scatter preventing ring 20 and the other hand should hold the back net 5 or the handle 6. [ 4, if the scatter preventing ring 20 is configured to be capable of being drawn out through the stopper guide groove 21 in a linear shape and the stopper 11 as shown in FIG. 4, the pulling force of the scatter preventing ring 20 There arises a problem that the scattering-preventing ring 20 is separated from the side net 10 when it acts relatively strongly. Recently, a handy type fan is hinge-coupled with a handle and a safety net so that it can be used on a table or a desk. In such a handy type fan, since the handle and the hinge connection part of the safety net are relatively weak, The durability of the hinge engaging portion may be deteriorated or broken if the force is excessively applied to the handle.

The scattering prevention ring 20 is moved in the form of a spiral through the helical guide groove 22 and the guide 12 engaged with the spiral guide groove 22 so that the scattering prevention ring 20 And it is possible to prevent a problem that the durability is deteriorated or broken by preventing a large force from being applied to the other part at the time of drawing.

In the present invention, the side net 10 and the anti-scattering ring 20 are engaged with the guide 12 and the helical groove 22 to prevent the anti-scattering ring 20 from being arbitrarily drawn by an external force when using the anti- can do.

For example, in the case of a handy type fan having a configuration in which the scattering-proof ring 20 is drawn out from the side net 10 in a sliding manner, the front mesh 4 is in contact with the ground surface When the rear netting 5 is tilted toward the front side, the anti-scattering ring 20 is forcibly pulled in, so that the anti-scattering ring must be pulled out again when the fan is used.

The scattering prevention ring 20 is supported through the spiral guide groove 22 and the guide 12 to be engaged therewith so that even when an external force is applied as described above, So that the original position can be maintained.

Next, a handy type fan having improved blowing efficiency according to another embodiment of the present invention will be briefly described with reference to FIGS. 7 to 9. FIG.

The handy type fan according to another embodiment of the present invention includes a blade 2 that is rotated by being inserted into a rotation shaft of a motor, a front net 4, a rear net 5 and a side net 30, And a handle (6) provided on one side of the safety net, wherein the side net (30) is configured such that the wind generated by the rotation of the wing is not scattered to the side, So that the front portion or the front portion thereof is clogged so as to be sprayed.

In the conventional side net of the handy type fan, since the front part of the blade is opened except for the grille, the wind is scattered to the open part during the blowing operation, and loss is generated. As a result, The user needs to position the fan more closely or rotate the wing faster. If the wing is rotated faster, the battery is consumed so much that the time to use the fan is reduced and the noise is reduced There is a problem that it becomes large.

The handy type fan according to another embodiment of the present invention is structured such that the front side portion is blocked or the entire front side portion is clogged with respect to the blade as shown in FIG. 7, so that the wind generated by the rotation of the blade is not scattered to the side As shown in FIG. Accordingly, a sufficient wind speed is generated even when consuming a small amount of electric power, so that a considerable amount of time can be used as compared with the conventional handy type fan, and noise can be used less pleasantly.

Next, according to another embodiment of the present invention, the front net 4 is formed with a strip-shaped scattering prevention part 40 coupled to be capable of being pulled out from the side net 30 forward.

The shatterproofing portion 40 has a predetermined width so as to enhance straightness by expanding a region where wind concentrates and concentrates when the blade is rotated, and is entirely blocked so that the wind is not scattered.

The front network 4 may be drawn out from the side net 30 in various ways. 7, a protrusion-shaped stopper 31 is formed on the outer circumferential surface of the side net 30 and a stopper guide groove 41 for guiding the stopper 31 is formed on the inner circumferential surface of the scattering- The stopper 31 may be moved along the stopper guide groove 41 to pull or pull the front net 4 while the stopper 31 is pulled or pushed in. The stopper guide groove 41 is engaged with both end portions of the stopper guide groove 41 to restrict the movement distance of the front net 4.

The stopper 31 and the stopper guide groove 41 may be formed to be opposite to the outer circumferential surface of the side net and the inner circumferential surface of the scatter preventive portion and may be formed in the shape of the stopper 31 and the stopper guide groove 41 Are only examples for the purpose of helping to understand the present invention, and are not limited to the scope of the present invention.

In addition, according to another embodiment of the present invention, the front net 4 may be drawn out and drawn while being rotated in a spiral form from the outer circumferential surface of the side net 30. 8, a spiral guide groove 42 is formed along the inner circumferential surface of the scatter preventing portion 40, and a guide 32 engaging with the guide groove is formed on the outer circumferential surface of the side net The front net 4 can be drawn and drawn in a spiral form. In order to facilitate understanding of the present invention, the guide 32 is illustrated as a helical shape corresponding to the guide groove 42, but this is only an example for the understanding of the present invention and is not limited to the scope of the present invention. For example, the guide 32 may have the same shape as the stopper 31 of FIG. When the guide 32 is formed in a spiral shape as shown in FIG. 8, an area fit to the guide groove 42 can be ensured, so that the front net 4 can be rotated or drawn out more stably. In addition, if the guide 32 has the same shape as the stopper 31 of FIG. 7, it is possible to increase the distance by which the front net 4 can be pulled forward, thereby achieving an effect of increasing the blowing efficiency have. Further, although not shown in the drawing, a helical guide groove may be formed along the outer circumferential surface of the side net, and a corresponding guide may protrude outwardly from the inner circumferential surface of the scatter preventing portion.

In order for the user to pull or pull the front net 4, one hand must hold the front net 4 and the other hand must hold the rear net 5 or the handle 6. [ 7, if the front net 4 is pulled forward through the stopper guide groove 41 of a straight line shape and the stopper 31 as shown in FIG. 7, the pulling force of the front net 4 is strong There may arise a problem that the front net 4 is detached while the scattering prevention part 40 is detached from the side net 30. Recently, a handy type fan is hinge-coupled with a handle and a safety net so that it can be mounted on a table or a desk. In such a handy type fan, since the handle and the hinge connection portion of the safety net are relatively weak, If the handle is too strong to be pulled, the durability of the hinge coupling part may be deteriorated or broken.

According to the present invention, the front net (4) is moved in a spiral shape through the helical guide groove (42) and the guide (32) engaged with the guide groove (42), so that the front net It is possible to prevent the problem that the durability is deteriorated or broken due to the fact that a large force is not applied to the other part at the time of drawing.

In the present invention, the front net 4 and the side net 30 are engaged with the guide 32 and the helical guide groove 42, so that the front net 4 is drawn out, Can be prevented.

For example, in the case of a handy type fan having a configuration in which the front net 4 is drawn out from the side net 30 in a sliding manner, in a state in which the front net 4 is pulled out to face the ground, Since the front network 4 is forcibly drawn into the side network by pressing the button 5, it is troublesome for the user to pull out the front network 4 again when necessary.

The present invention is configured such that the front net (4) is stably supported through the helical guide groove (42) and the guide (32) engaged therewith. Even if an external force is applied as described above, .

Explanation of symbols

1: Handheld fan

2: wing

3: Safety net

4: Front network

5: Rear network

6: Handle

10:

11: Stopper

12: Guide

20: Shatterproof ring

21: Stopper guide groove

22: Spiral guide groove

30: side net

31: Stopper

32: Guide

40:

41: Stopper guide groove

42: Spiral guide groove

Claims

A safety net (3) composed of a front net (4), a rear net (5) and a side net (10) and protecting the wing, a blade (2) In the handy type fan including the handle 6,

The side net (10) is configured such that the wind generated by the rotation of the vane is clogged in the front part or the whole part so that the wind can be concentratedly injected forward without being scattered to the side,

And a scattering prevention ring (20) in the form of a band having a predetermined width that wraps the side mesh so as to enhance the straightness by expanding an area where wind concentrates and concentrates, Wherein the air blowing efficiency is improved.
2. The vehicle according to claim 1, wherein, in order to allow the anti-scattering ring to be pulled out from the side net, the inner circumferential surface of the side net (10)

A stopper 11 in the form of a projection is formed on one surface,

And a stopper guide groove (21) for guiding the stopper is formed on the other surface,

Preventing ring is pulled toward the front of the safety net or is pushed rearward, the stopper moves along the stopper guide groove to pull out or pull out the scattering-preventing ring.
2. The vehicle according to claim 1, wherein, in order to allow the anti-scattering ring to be pulled out from the side net, the inner circumferential surface of the side net (10)

A helical guide groove 22 is formed on one surface,

And a guide 12 engaging with the guide groove is protruded from the other surface,

The anti-scattering ring is pulled out from the side net while rotating in a spiral form when the anti-scattering ring is rotated, and after the pulling-out, the anti-scattering ring is supported through the guide and is prevented from being arbitrarily pulled by an external force Handy-type fan with improved airflow efficiency.
A safety net (3) composed of a front net (4), a rear net (5) and a side net (30) and protecting the wing (2) In the handy type fan including the handle 6,

The side net (30) is configured such that the wind generated by the rotation of the blade is prevented from being scattered to the side, and the front part or the whole of the side net (30)

The front net (4) is coupled in a state of being pulled out from the side net (30) so as to be able to be pulled out forward, and extends a region where the wind is gathered and concentrated so that straightness is strengthened. (40) is formed on the upper surface of the lower panel (40).
The method as claimed in claim 4, wherein, in order to allow the front net (4) to be pulled out from the side net (30)

A stopper 31 in the form of a projection is formed on one surface,

And a stopper guide groove 41 for guiding the stopper is formed on the other surface,

Wherein when the front net is pulled toward the front of the safety net or is pushed backward, the stopper moves along the stopper guide groove to draw or pull the front net.
5. The apparatus according to claim 4, wherein, in order to allow the front net to be pulled out from the side net, the inner circumferential surface of the side net (30)

A helical guide groove 42 is formed on one surface,

And a guide (32) engaging with the guide groove is protruded from the other surface,

The front net is drawn out while being rotated in a spiral form from the side net when the front net is rotated, and after the outgoing, the front net is supported through the guide and is prevented from being arbitrarily introduced by external force. Improved handy fan.